CN111963025A - Sound-proof explosion-proof type civil air defense door - Google Patents

Sound-proof explosion-proof type civil air defense door Download PDF

Info

Publication number
CN111963025A
CN111963025A CN202010741986.3A CN202010741986A CN111963025A CN 111963025 A CN111963025 A CN 111963025A CN 202010741986 A CN202010741986 A CN 202010741986A CN 111963025 A CN111963025 A CN 111963025A
Authority
CN
China
Prior art keywords
air defense
fixed
rotating shaft
defense door
door frame
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.)
Granted
Application number
CN202010741986.3A
Other languages
Chinese (zh)
Other versions
CN111963025B (en
Inventor
王祖标
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.)
Zhejiang Aotong Civil Air Defense Equipment Co Ltd
Original Assignee
Zhejiang Aotong Civil Air Defense 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 Zhejiang Aotong Civil Air Defense Equipment Co Ltd filed Critical Zhejiang Aotong Civil Air Defense Equipment Co Ltd
Priority to CN202010741986.3A priority Critical patent/CN111963025B/en
Publication of CN111963025A publication Critical patent/CN111963025A/en
Application granted granted Critical
Publication of CN111963025B publication Critical patent/CN111963025B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00Power-operated mechanisms for wings
    • E05F15/60Power-operated mechanisms for wings using electrical actuators
    • E05F15/603Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/632Power-operated mechanisms for wings using electrical actuators using rotary electromotors for horizontally-sliding wings
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/20Doors, windows, or like closures for special purposes; Border constructions therefor for insulation against noise
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06BFIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00Special arrangements or measures in connection with doors or windows
    • E06B7/16Sealing arrangements on wings or parts co-operating with the wings
    • E06B7/22Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
    • E06B7/23Plastic, sponge rubber, or like strips or tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

The invention discloses a sound-insulation explosion-proof type civil air defense door, which comprises a door frame, a civil air defense door body, concrete arranged in the civil air defense door body, a reinforcing device arranged on the door frame, a switching device arranged on the civil air defense door body, and sound-insulation sealing devices arranged on the door frame and the civil air defense door body; the concrete comprises, by weight, 330 parts of cement, 63 parts of fly ash, 15 parts of a polycarboxylic acid water reducing agent, 0.2 part of calcium gluconate, 155 parts of water, 13 parts of perfluoropolyether and 9 parts of lauramide hydroxysultaine; the invention improves the compactness of the hardened concrete and has stronger hardening strength, and the whole anti-impact protection and sound insulation effect of the civil air defense door is good.

Description

Sound-proof explosion-proof type civil air defense door
Technical Field
The invention relates to the technical field of civil air defense doors, in particular to a sound-insulation explosion-proof civil air defense door.
Background
At present, current people's air defense door is the door of people's protection engineering access & exit, people's air defense door classification is more vivid, there is ordinary list, two protective airtight doors, the guard gate of one deck stereoplasm steel sheet is mostly, in numerous people's air defense door types, reinforced concrete people's air defense door uses generally, simple structure, the striking that is used for taking precautions against the high strength more, the impact force that receives when receiving the impact resists the effect poor, the impact force that the explosion produced causes the damage to people's air defense door easily, thereby lead to the protective effect decline of people's air defense door.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the sound-insulation explosion-proof type civil air defense door, which improves the compactness of the hardened concrete and has stronger hardening strength, and the whole anti-impact protection and sound insulation effect of the civil air defense door is good.
In order to achieve the purpose, the invention adopts the following technical scheme: a sound-insulation explosion-proof type civil air defense door comprises a door frame, a civil air defense door body, concrete arranged in the civil air defense door body, a reinforcing device arranged on the door frame, a switching device arranged on the civil air defense door body, and sound-insulation sealing devices arranged on the door frame and the civil air defense door body, wherein the concrete comprises, by weight, 330 parts of cement, 63 parts of fly ash, 15 parts of a polycarboxylic acid water reducing agent, 0.2 part of calcium gluconate, 155 parts of water, 13 parts of perfluoropolyether and 9 parts of lauramide hydroxysultaine; the invention improves the fluidity of the concrete, so that the concrete is better filled between the first slab layer and the second slab layer and between the plurality of first hollow semicircles and the plurality of second hollow semicircles and is better matched with the first hollow semicircles and the second hollow semicircles; the coagulant can delay the hardening speed of the concrete and ensure that the concrete is not hardened before and during the pumping process. The calcium gluconate has strong retarding effect, low dosage and no side effect on cement. The calcium gluconate contains carboxylic acid groups, so that the complexing effect on calcium ions can be enhanced, and a strong retarding effect is generated; the cement comprises portland cement, sulphoaluminate cement and phosphate cement, and by adopting the technical scheme, the main mineral composition of the portland cement is as follows: tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite. Tricalcium silicate determines the strength of portland cement within four weeks; the strength of the dicalcium silicate is exerted after four weeks, and the strength of the dicalcium silicate reaches four weeks about one year; tricalcium aluminate develops strength faster but has lower strength, and plays a certain role in the strength of portland cement within 1 to 3 days or a little longer time; tetracalcium aluminoferrite also develops strength faster, but has low strength and contributes little to the strength of portland cement. The sulphoaluminate cement mainly comprises anhydrous calcium sulphoaluminate and dicalcium silicate as main minerals. Phosphate cement belongs to chemically bonded cement, namely, the phosphate cement is formed by chemical reaction of metal and acid solution or salt as basic components and has good thermal stability. The three kinds of cement are compounded, and the performances of the three kinds of cement are complementary to each other, so that the performances of all aspects reach balanced values, and the cement has good strength and processability; the perfluoropolyether is a good lubricant, and can effectively improve the fluidity of concrete, thereby improving the workability of concrete mixing construction. The perfluoropolyether with the polymerization degree within 100 has good volatilization performance, and can continuously volatilize in the concrete pumping and pouring process, so that the concrete is more compact after being hardened and has stronger hardening strength; to sum up, improve compactness and have stronger sclerosis intensity after the concrete sclerosis, the whole shock resistance protection of people's air defense door is effectual with giving sound insulation.
The civil air defense door body includes the frame, the fixed first sheet layer of locating on the frame, the fixed second sheet layer of locating on the frame, be located between first sheet layer and the second sheet layer fixed first netted strengthening rib layer and the netted strengthening rib layer of second of locating on the frame, the fixed a plurality of first hollow semicircles of locating on the netted strengthening rib layer of equidistance array, the fixed hollow semicircle of a plurality of seconds of locating on the netted strengthening rib layer of second of equidistance array, fixed handle of locating on the first sheet layer, run through the rotatable first connection pivot and the second connection pivot of locating on the frame of locating on locating the door frame, first hollow semicircle and the hollow semicircular symmetry of second and the two fixed setting.
The reinforcing device comprises a plurality of first fixing assemblies which are equidistantly arranged on the left end of the door frame, a plurality of second fixing assemblies which are equidistantly arranged on the right end of the door frame, a plurality of third fixing assemblies which are equidistantly arranged on the upper end of the door frame, a plurality of fourth fixing assemblies which are equidistantly arranged on the lower end of the door frame, and a driving assembly which is used for driving the first fixing assemblies to the fourth fixing assemblies to be started simultaneously; the fixed subassembly of first fixed subassembly and second is the same with the fixed subassembly structure of third fixed subassembly and fourth, first fixed subassembly is including fixed base of locating on the door frame, run through fixed disk of locating on the base, run through the rotatable bull stick of locating on the fixed disk, fixed locating bull stick one end first screw rod, the equidistance annular distributes and fixes a plurality of slide bars of locating on the fixed disk, the internal thread ejector pad on first screw rod is located to the cover, the fixed first inserted bar of locating on the internal thread ejector pad, but on the removable internal thread ejector pad of inserting and respectively portable a plurality of sliders of overlapping on a plurality of slide bars, but respectively portable overlap on a plurality of slide bars and respectively fixed a plurality of second inserted bars of locating on a plurality of sliders.
The driving component comprises a plurality of first gears which are respectively fixedly sleeved on the plurality of first fixed component rotating rods, a plurality of third gears which are respectively fixedly sleeved on the plurality of second fixed component rotating rods, a plurality of second gears which are respectively fixedly sleeved on the plurality of third fixed component rotating rods, a plurality of fourth gears which are respectively fixedly sleeved on the plurality of fourth fixed component rotating rods, a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft which are rotatably arranged on the door frame in a penetrating way, a plurality of first spiral gears which are fixedly sleeved on the first rotating shaft and are respectively engaged with the plurality of first gears, a plurality of second spiral gears which are fixedly sleeved on the second rotating shaft and are respectively engaged with the plurality of second gears, a plurality of third spiral gears which are fixedly sleeved on the third rotating shaft and are respectively engaged with the plurality of third gears, a plurality of fourth spiral gears which are fixedly sleeved on the fourth rotating shaft and are respectively engaged with the plurality of fourth gears, a plurality of second spiral gears, The fixed sleeve is arranged on a first transmission gear at one end of the first rotating shaft, the fixed sleeve is arranged on a second transmission gear at the other end of the first rotating shaft, the fixed sleeve is arranged on one end of the third rotating shaft and is meshed with the first transmission gear, the fixed sleeve is arranged on a fourth transmission gear at the other end of the third rotating shaft, the fixed sleeve is arranged on one end of the second rotating shaft and is meshed with the fourth transmission gear, the fixed sleeve is arranged on a sixth transmission gear at the other end of the second rotating shaft, the fixed sleeve is arranged on one end of the fourth rotating shaft and is meshed with the second transmission gear, the fixed sleeve is arranged on the other end of the fourth rotating shaft and is meshed with the sixth transmission gear, the driving shaft is rotatably arranged on the door frame, and the fixed sleeve is arranged on the driving shaft and is meshed with the fifth transmission gear.
The switch device comprises a second screw rod arranged on the civil air defense door body, a third screw rod arranged on the civil air defense door body under the second screw rod, a fourth screw rod arranged on the civil air defense door body on one side of the second screw rod, a fifth screw rod arranged on the civil air defense door body on one side of the third screw rod and under the fourth screw rod, a fifth rotating shaft arranged between the second screw rod and the third screw rod and penetrating through the civil air defense door body in a rotatable manner, a sixth rotating shaft arranged on the civil air defense door body between the fifth screw rod and the fourth screw rod and penetrating through the civil air defense door body in a rotatable manner, a first rotating rod and a second rotating rod fixedly arranged on two ends of the fifth rotating shaft, a third rotating rod and a fourth rotating rod fixedly arranged on two ends of the sixth rotating shaft, a first clamping plate and a first fixing rod fixedly arranged on the second screw rod, a second clamping plate and a second fixing rod fixedly arranged on the third screw rod, a third clamping plate and a third fixing rod fixedly arranged on the fourth screw rod, The fourth clamping plate and the fourth fixed rod are fixedly arranged on the fifth screw rod, the two ends of the first connecting rod are respectively rotatably arranged on the first fixed rod and the second fixed rod, the two ends of the second connecting rod are respectively rotatably arranged on the third fixed rod and the fourth fixed rod, the first fixing shaft penetrates through the second rotating rod and is movably arranged on the second rotating rod, one end of the first fixing shaft is fixedly arranged on the first connecting rod, the second fixing shaft penetrates through the fourth rotating rod and is movably arranged on the second rotating rod, one end of the second fixing shaft is fixedly arranged on the second connecting rod, the first clamping groove is arranged on the door frame, and the second clamping groove, the third clamping groove.
The sound insulation sealing device comprises a first rubber sealing gasket fixedly arranged on a door frame, a first arc-shaped groove, a second arc-shaped groove, a first special-shaped groove and a second special-shaped groove which are arranged on the first rubber sealing gasket, a second rubber sealing gasket fixedly arranged on a civil air defense door body, a first arc-shaped lug arranged on the second rubber sealing gasket, a second arc-shaped lug, a first special-shaped lug and a second special-shaped lug, a first sealing plate fixedly arranged on the civil air defense door body, a roller rotatably arranged on the first sealing plate, and an arc-shaped surface arranged on the door frame.
The sound insulation sealing device also comprises a plurality of first guide rods fixedly arranged on the door frame, a plurality of second sealing plates movably sleeved on the plurality of first guide rods simultaneously, a first spring sleeved on the first guide rods and with two ends respectively fixedly arranged at one end of the first guide rod and the second sealing plate, a plurality of second guide rods fixedly arranged on the door frame, a third sealing plate movably sleeved on the plurality of second guide rods simultaneously, a second spring sleeved on the second guide rods and with two ends respectively fixedly arranged at one end of the second guide rod and the third sealing plate, a first cavity arranged on the second sealing plate, a second cavity symmetrically arranged on the third sealing plate with the first cavity, a first sliding seat movably arranged in the first cavity, a second sliding seat movably arranged in the second cavity, a first roller rotatably arranged on the first sliding seat, a second roller rotatably arranged on the second sliding seat, The both ends are fixed the carriage release lever of locating on first slide and second slide respectively, the fixed no pole motor that is used for driving the carriage release lever to remove of locating on the door frame, run through a plurality of third guide bars on the portable carriage release lever, the fixed fourth closing plate of locating on the same one end of a plurality of third guide bars, the cover is located on the third guide bar and both ends are fixed the third spring of locating on fourth closing plate and carriage release lever respectively, the fixed switch that touches that is used for controlling no pole motor to start of locating on the door frame.
The invention has the following advantages: the compactness of the hardened concrete is improved, the hardened concrete has stronger hardening strength, and the whole anti-impact protection and sound insulation effect of the civil air defense door is good.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic front view of the present invention.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a sectional view taken along line B-B of fig. 2.
Fig. 5 is a sectional view taken along line C-C of fig. 2.
Fig. 6 is a side view of the present invention.
Fig. 7 is a cross-sectional view taken along line D-D of fig. 6.
Fig. 8 is a sectional view taken along line E-E of fig. 7.
Fig. 9 is a sectional view taken along line F-F in fig. 6.
Fig. 10 is a sectional view taken along line G-G of fig. 6.
Fig. 11 is a sectional view taken along line H-H in fig. 6.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 11, a sound-insulation explosion-proof type civil air defense door comprises a door frame 1, a civil air defense door body 2, concrete 3 arranged in the civil air defense door body, a reinforcing device 4 arranged on the door frame, a switch device 5 arranged on the civil air defense door body, and a sound-insulation sealing device 6 arranged on the door frame and the civil air defense door body, wherein the concrete 3 comprises, by weight, 330 parts of cement, 63 parts of fly ash, 15 parts of a polycarboxylic acid water reducing agent, 0.2 part of calcium gluconate, 155 parts of water, 13 parts of perfluoropolyether, and 9 parts of lauramide hydroxysultaine; the fluidity of the concrete is improved, so that the concrete is better filled between the first slab layer and the second slab layer and between the plurality of first hollow semicircles and the plurality of second hollow semicircles to be better matched with the first hollow semicircles and the second hollow semicircles; the coagulant can delay the hardening speed of the concrete and ensure that the concrete is not hardened before and during the pumping process. The calcium gluconate has strong retarding effect, low dosage and no side effect on cement. The calcium gluconate contains carboxylic acid groups, so that the complexing effect on calcium ions can be enhanced, and a strong retarding effect is generated; the cement comprises portland cement, sulphoaluminate cement and phosphate cement, the ratio of the portland cement to the sulphoaluminate cement to the phosphate cement is 6:3:1, and by adopting the technical scheme, the portland cement comprises the following main minerals: tricalcium silicate, dicalcium silicate, tricalcium aluminate, tetracalcium aluminoferrite. Tricalcium silicate determines the strength of portland cement within four weeks; the strength of the dicalcium silicate is exerted after four weeks, and the strength of the dicalcium silicate reaches four weeks about one year; tricalcium aluminate develops strength faster but has lower strength, and plays a certain role in the strength of portland cement within 1 to 3 days or a little longer time; tetracalcium aluminoferrite also develops strength faster, but has low strength and contributes little to the strength of portland cement. The sulphoaluminate cement mainly comprises anhydrous calcium sulphoaluminate and dicalcium silicate as main minerals. Phosphate cement belongs to chemically bonded cement, namely, the phosphate cement is formed by chemical reaction of metal and acid solution or salt as basic components and has good thermal stability. The three kinds of cement are compounded, and the performances of the three kinds of cement are complementary to each other, so that the performances of all aspects reach balanced values, and the cement has good strength and processability; the perfluoropolyether is a good lubricant, and can effectively improve the fluidity of concrete, thereby improving the workability of concrete mixing construction. The perfluoropolyether with the polymerization degree within 100 has good volatilization performance, and can continuously volatilize in the concrete pumping and pouring process, so that the concrete is more compact after being hardened and has stronger hardening strength.
The civil air defense door body 2 comprises an outer frame 21, a first plate layer 22 fixedly arranged on the outer frame, a second plate layer 23 fixedly arranged on the outer frame, a first reticular reinforcing rib layer 24 and a second reticular reinforcing rib layer 25 which are positioned between the first plate layer and the second plate layer and fixedly arranged on the outer frame, a plurality of first hollow semicircles 26 fixedly arranged on the first reticular reinforcing rib layer in an equidistant array manner, a plurality of second hollow semicircles 27 fixedly arranged on the second reticular reinforcing rib layer in an equidistant array manner, a handle 28 fixedly arranged on the first plate layer, a first connecting rotating shaft 29 and a second connecting rotating shaft 210 which are rotatably arranged on a door frame and penetrate through the outer frame, wherein the first hollow semicircles and the second hollow semicircles are symmetrical and are fixedly arranged; the concrete pours into between first sheet layer and second sheet layer, the intensity of people's air defense door body has been improved through first hollow semicircle and the setting of second hollow semicircle and first netted strengthening rib layer and the netted strengthening rib layer of second, vibrations and the audio that external shock produced can be refracted simultaneously, it uses the two to rotate as the axle center to connect the pivot setting through first connection pivot and second, realized the quick fixed of door frame and wall body and improve the intensity that the two is fixed through reinforcing apparatus, the opening and closing of people's air defense door has been realized through switching device, the wearing and tearing of its switch can greatly reduced to people's air defense door open the in-process many times, keep the door frame closely to link together with people's air defense door body, and improve switching device life, sealed and give sound insulation and life between door frame and the people's air defense door body has been realized through sound insulation sealing device.
The reinforcing device 4 comprises a plurality of first fixing assemblies 41 which are equidistantly arranged on the left end of the door frame, a plurality of second fixing assemblies 42 which are equidistantly arranged on the right end of the door frame, a plurality of third fixing assemblies 43 which are equidistantly arranged on the upper end of the door frame, a plurality of fourth fixing assemblies 44 which are equidistantly arranged on the lower end of the door frame, and a driving assembly 45 which is used for driving the first fixing assemblies to the fourth fixing assemblies to be started simultaneously; the first fixing component 41 comprises a base 411 fixedly arranged on the door frame, a fixed disc 412 fixedly arranged on the base in a penetrating way, a rotating rod 413 rotatably arranged on the fixed disc in a penetrating way, a first screw 414 fixedly arranged at one end of the rotating rod, a plurality of sliding rods 415 fixedly arranged on the fixed disc in an equidistant annular distribution way, an internal thread push block 416 sleeved on the first screw, a first inserting rod 417 fixedly arranged on the internal thread push block, a plurality of sliding blocks 418 movably inserted into the internal thread push block and respectively movably sleeved on the plurality of sliding rods, and a plurality of second inserting rods 420 respectively movably sleeved on the plurality of sliding rods and respectively fixedly arranged on the plurality of sliding blocks; the rotating rod is driven to rotate by the driving assembly, the first screw rod fixed on the rotating rod is rotated, the internal thread push block is moved towards the direction of a wall body in the rotating process of the first screw rod, the plurality of sliding blocks are moved towards the direction of the wall body along the direction of the sliding rod in the moving process of the internal thread push block, the first inserted rod on the internal thread push block is inserted into the hole of the wall body, the second inserted rod on the sliding block is inserted into the hole of the wall body, the door frame and the wall body are fixed, the first fixing assembly, the second fixing assembly, the third fixing assembly and the fourth fixing assembly are driven to be started simultaneously by the driving assembly, the fixing is quicker, the size precision is high, the door frame is prevented from deviating, the internal thread push block can prop against the cavity body, the sliding blocks can prop against the cavity body, the fixing strength of the door frame and the wall body is improved again, the strength of the first inserted rod is increased by the arrangement of the second, simultaneously a plurality of second inserted bars can be to the all-round enhancement of first inserted bar, have improved its fixed intensity once more, and the internal thread ejector pad drives a plurality of sliders and removes the in-process, makes a plurality of sliders outwards remove as the center with the internal thread piece, has improved its fixed area, improves the intensity of a plurality of second inserted bars promptly, and the civil air defense door receives can be fine after the blast impact and fixed with the wall body.
The driving assembly 45 includes a plurality of first gears 451 respectively and fixedly sleeved on the plurality of first fixed assembly rotating rods, a plurality of third gears 452 respectively and fixedly sleeved on the plurality of second fixed assembly rotating rods, a plurality of second gears 453 respectively and fixedly sleeved on the plurality of third fixed assembly rotating rods, a plurality of fourth gears 454 respectively and fixedly sleeved on the plurality of fourth fixed assembly rotating rods, a plurality of second helical gears 455, a second rotating shaft 456, a third rotating shaft 457 and a fourth rotating shaft 458 rotatably penetrating through the door frame, a plurality of first helical gears 459 fixedly sleeved on the first rotating shaft and respectively engaged with the plurality of first gears, a plurality of second helical gears 460 fixedly sleeved on the second rotating shaft and respectively engaged with the plurality of second gears, a plurality of third helical gears 461 fixedly sleeved on the third rotating shaft and respectively engaged with the plurality of third gears, a plurality of fourth helical gears 462 fixedly sleeved on the fourth rotating shaft and respectively engaged with the plurality of fourth gears, A first transmission gear 463 fixedly sleeved on one end of the first rotating shaft, a second transmission gear 464 fixedly sleeved on the other end of the first rotating shaft, a third transmission gear 465 fixedly sleeved on one end of the third rotating shaft and meshed with the first transmission gear, a fourth transmission gear 466 fixedly sleeved on the other end of the third rotating shaft, a fifth transmission gear 467 fixedly sleeved on one end of the second rotating shaft and meshed with the fourth transmission gear, a sixth transmission gear 468 fixedly sleeved on the other end of the second rotating shaft, a seventh transmission gear 469 fixedly sleeved on one end of the fourth rotating shaft and meshed with the second transmission gear, an eighth transmission gear 470 fixedly sleeved on the other end of the fourth rotating shaft and meshed with the sixth transmission gear, a driving shaft 471 rotatably arranged on a door frame, and a ninth transmission gear 472 fixedly sleeved on the driving shaft and meshed with the fifth transmission gear; the ninth transmission gear fixedly sleeved on the driving shaft is rotated by rotating the driving shaft, the fifth transmission gear meshed with the ninth transmission gear is driven to rotate in the rotating process of the ninth transmission gear, thereby rotating the third rotating shaft, driving a plurality of third spiral gears fixedly sleeved on the third rotating shaft to rotate in the third rotating process, rotating the third gears, starting the second fixing component, meanwhile, a sixth transmission gear on the third rotating shaft is rotated, a fourth transmission gear is rotated in the rotating process of the fifth transmission gear, the fourth transmission gear is fixedly sleeved on the second rotating shaft, thereby rotating the second rotating shaft, rotating a plurality of second spiral gears on the second rotating shaft, rotating a second gear on the third fixing component, thereby accomplish the start-up to the fixed subassembly of third to analogize and accomplish the start-up to first fixed subassembly and fourth fixed subassembly, the fixed work to door frame and wall body is conveniently accomplished fast to easy operation.
The switch device 5 comprises a second screw 51 arranged on the civil air defense door body, a third screw 52 arranged on the civil air defense door body and positioned under the second screw, a fourth screw 53 arranged on the civil air defense door body and positioned on one side of the second screw, a fifth screw 54 arranged on the civil air defense door body and positioned under the fourth screw, a fifth rotating shaft 55 arranged between the second screw and the third screw and rotatably arranged on the civil air defense door body, a sixth rotating shaft 56 arranged between the fifth screw and the fourth screw and rotatably arranged on the civil air defense door body, a first rotating rod 57 and a second rotating rod 58 fixedly arranged on two ends of the fifth rotating shaft, a third rotating rod 59 and a fourth rotating rod 510 fixedly arranged on two ends of the sixth rotating shaft, a first clamping plate 511 and a first fixing rod 515 fixedly arranged on the second screw, a second clamping plate 512 and a second fixing rod 516 fixedly arranged on the third screw, a third clamping plate 516 and a second fixing rod 516, A third clamping plate 513 and a third fixing rod 517 fixedly arranged on the fourth screw, a fourth clamping plate 514 and a fourth fixing rod 518 fixedly arranged on the fifth screw, a first connecting rod 519 with two ends respectively rotatably arranged on the first fixing rod and the second fixing rod, a second connecting rod 520 with two ends respectively rotatably arranged on the third fixing rod and the fourth fixing rod, a first fixing shaft 521 penetrating through the second rotating rod and movably arranged on the second rotating rod and with one end fixedly arranged on the first connecting rod, a second fixing shaft 522 penetrating through the fourth rotating rod and movably arranged on the fourth rotating rod and with one end fixedly arranged on the second connecting rod, a first clamping groove 523, a second clamping groove 524, a third clamping groove 525 and a fourth clamping groove 526 arranged on the door frame; the first connecting rod rotates by taking the fifth rotating shaft as an axis through rotating the first rotating rod or the second rotating rod and the first fixed shaft, the first fixed rod and the second fixed rod rotate by taking the second screw and the third screw as axes during the rotation of the first connecting rod, even if the second screw and the third screw rotate in the same direction, the first clamping plate and the second clamping plate are respectively and fixedly arranged on the second screw and the third screw, so that the first clamping plate and the second clamping plate rotate to rotate towards the first clamping groove and the second clamping groove, the first clamping plate and the second clamping plate move towards the civil air defense door body during the rotation of the second screw and the third screw, the first clamping plate and the second clamping plate are prevented from being abraded with the first clamping groove and the second clamping groove, the first clamping plate and the second clamping plate are directly abutted against the first clamping groove and the second clamping groove, no friction is generated between the first clamping groove and the second clamping groove, make between people's air defense door body and the door frame complex inseparabler, keep the clearance between the two, the rethread rotates third bull stick or fourth bull stick, and is the same with first bull stick of rotation and second bull stick principle, makes between people's air defense door body and the door frame complex inseparabler, and is fixed through four angles to people's air defense door body, makes people's air defense door close in-process more firm.
The sound insulation sealing device 6 comprises a first rubber sealing gasket 61 fixedly arranged on a door frame, a first arc-shaped groove 62, a second arc-shaped groove 63, a first special-shaped groove 64 and a second special-shaped groove 65 which are arranged on the first rubber sealing gasket, a second rubber sealing gasket 66 fixedly arranged on a civil air defense door body, a first arc-shaped lug 67, a second arc-shaped lug 68, a first special-shaped lug 69 and a second special-shaped lug 610 which are arranged on the second rubber sealing gasket, a first sealing plate 611 fixedly arranged on the civil air defense door body, a roller 612 rotatably arranged on the first sealing plate and an arc-shaped surface 613 arranged on the door frame; the first rubber sealing gasket is contacted with the second rubber sealing gasket in the closing process of the civil air defense door body, so that the sealing and sound insulation effects are achieved, the contact area of the upper end and the lower end of the first rubber sealing gasket and the second rubber sealing gasket is increased through the arrangement of the first arc-shaped groove and the first arc-shaped convex block as well as the arrangement of the second arc-shaped groove and the second arc-shaped convex block, so that the sealing performance is improved, the contact area of both ends about first rubber packing pad and the second rubber packing pad is improved through first abnormal shape groove and first abnormal shape lug and second abnormal shape groove and the setting of second abnormal shape lug, improve its leakproofness, and it is better to reduce first rubber packing pad and the wearing and tearing of second rubber packing pad and adaptation among the people's air defense door body upset process, make the two remain sealed effect all the time, people's air defense door body upset in-process drives first closing plate and rotates, make the roller bearing on the first closing plate roll on being located the arcwall face, keep its leakproofness.
The sound insulation sealing device 6 further comprises a plurality of first guide rods 614 fixedly arranged on the door frame, a second sealing plate 615 movably sleeved on the plurality of first guide rods, a first spring 616 sleeved on the first guide rods and having two ends respectively fixedly arranged at one end of the first guide rod and the second sealing plate, a plurality of second guide rods 617 fixedly arranged on the door frame, a third sealing plate 618 movably sleeved on the plurality of second guide rods, a second spring 619 sleeved on the second guide rod and having two ends respectively fixedly arranged at one end of the second guide rod and the third sealing plate, a first cavity 620 arranged on the second sealing plate, a second cavity 621 symmetrically arranged on the third sealing plate with the first cavity, a first slide seat 622 movably arranged in the first cavity, a second cavity 623 movably arranged in the second cavity, a first roller 624 rotatably arranged on the first slide seat, A second roller 625 rotatably disposed on the second slide, a moving rod 626 with two ends respectively fixed on the first slide and the second slide, a rodless motor 627 fixedly disposed on the door frame for driving the moving rod to move, a plurality of third guide rods 628 movably disposed on the moving rod, a fourth sealing plate 629 fixedly disposed on the same end of the plurality of third guide rods, a third spring 630 sleeved on the third guide rod and with two ends respectively fixed on the fourth sealing plate and the moving rod, and a touch switch 631 fixedly disposed on the door frame for controlling the rodless motor to start; the third clamping plate touches the touch switch in the rotation process to start the rodless motor, the rodless motor drives the moving rod to move reversely to the civil air defense door body, a plurality of third guide rods on the moving rod move, the fourth sealing plate is close to and contacts one end of the civil air defense door body, the first sliding seat and the second sliding seat are positioned in the first cavity and the second cavity to move in the moving process of the moving rod, the moving rod moves continuously after the fourth sealing plate contacts the civil air defense door body, the first sliding seat and the second sliding seat move continuously, the second sealing plate and the third sealing plate move and contact towards the civil air defense door body simultaneously, the sealing and sound insulation between the civil air defense door body and the door frame are improved through the arrangement, the civil air defense door body is better embedded on the door frame, the abrasion between the second sealing plate and the fourth sealing plate and the abrasion between the fourth sealing plate and the third sealing plate are avoided through the arrangement, no pole motor drives the carriage release lever antiport, make first slide and second slide reset, set up through first spring and second spring and make second closing plate and third closing plate reset, delay the fourth closing plate through third guide bar and third spring and remove, make second closing plate and third closing plate reset the back fourth sealed just can follow the carriage release lever and remove together, can avoid the people's air defense door body upset in-process because of its thickness can not overturn itself through the setting, and realize the upset of people's air defense door body, can also make it close the back more inseparabler with the door frame complex.
The rodless motor is commercially available.

Claims (7)

1. The utility model provides an explosion-proof formula people's air defense door gives sound insulation which characterized in that: including door frame (1), people's air defense door body (2), locate this internal concrete (3) of people's air defense door, locate reinforcing apparatus (4) on the door frame, locate switching device (5) on the people's air defense door body, locate sound insulation sealing device (6) on door frame and the people's air defense door body, concrete (3) are counted according to part by weight including cement 330, fly ash 63, polycarboxylate water reducing agent 15, calcium gluconate 0.2, water 155, perfluoropolyether 13, 9 parts of lauramide hydroxysultaine.
2. The sound-insulating explosion-proof type civil air defense door according to claim 1, characterized in that: people's air defense door body (2) include frame (21), fixed first sheet layer (22) of locating on the frame, fixed second sheet layer (23) of locating on the frame, be located between first sheet layer and the second sheet layer fixed first netted strengthening rib layer (24) and the netted strengthening rib layer of second (25) of locating on the frame, the equidistance array is fixed locates a plurality of first hollow semicircles (26) on the netted strengthening rib layer of first netted, the fixed hollow semicircle of a plurality of second (27) of locating on the netted strengthening rib layer of second of equidistance array, fixed handle (28) of locating on the first sheet layer, run through the rotatable first connection pivot (29) and the second connection pivot (210) of locating on the frame, first hollow semicircle and the hollow semicircle symmetry of second and the two fixed setting.
3. The sound-insulating explosion-proof type civil air defense door according to claim 1, characterized in that: the reinforcing device (4) comprises a plurality of first fixing assemblies (41) which are equidistantly arranged on the left end of the door frame, a plurality of second fixing assemblies (42) which are equidistantly arranged on the right end of the door frame, a plurality of third fixing assemblies (43) which are equidistantly arranged on the upper end of the door frame, a plurality of fourth fixing assemblies (44) which are equidistantly arranged on the lower end of the door frame, and a driving assembly (45) which is used for driving the first fixing assemblies to the fourth fixing assemblies to be started simultaneously; the first fixing component and the second fixing component are the same as the third fixing component and the fourth fixing component in structure, the first fixing component (41) comprises a base (411) fixedly arranged on a door frame, a fixed disc (412) fixedly arranged on the base in a penetrating mode, a rotating rod (413) rotatably arranged on the fixed disc in a penetrating mode, a first screw (414) fixedly arranged on one end of the rotating rod, a plurality of sliding rods (415) fixedly arranged on the fixed disc in an equidistant annular distribution mode, an internal thread push block (416) sleeved on the first screw, a first inserting rod (417) fixedly arranged on the internal thread push block, a plurality of sliding blocks (418) movably inserted into the internal thread push block and movably sleeved on the plurality of sliding rods respectively, and a plurality of second inserting rods (420) movably sleeved on the plurality of sliding rods and fixedly arranged on the plurality of sliding blocks respectively.
4. A sound-insulating explosion-proof type civil air defense door according to claim 3, characterized in that: the driving component (45) comprises a plurality of first gears (451) which are respectively fixedly sleeved on the plurality of first fixed component rotating rods, a plurality of third gears (452) which are respectively fixedly sleeved on the plurality of second fixed component rotating rods, a plurality of second gears (453) which are respectively fixedly sleeved on the plurality of third fixed component rotating rods, a plurality of fourth gears (454) which are respectively fixedly sleeved on the plurality of fourth fixed component rotating rods, a first rotating shaft (455) which penetrates through the door frame and is rotatably arranged on the door frame, a second rotating shaft (456), a third rotating shaft (457) and a fourth rotating shaft (458), a plurality of first spiral gears (459) which are fixedly sleeved on the first rotating shaft and are respectively meshed with the plurality of first gears, a plurality of second spiral gears (460) which are fixedly sleeved on the second rotating shaft and are respectively meshed with the plurality of second gears, a plurality of third spiral gears (461) which are fixedly sleeved on the third rotating shaft and are respectively meshed with the plurality of third gears, A plurality of fourth helical gears (462) fixedly sleeved on the fourth rotating shaft and respectively meshed with the plurality of fourth gears, a first transmission gear (463) fixedly sleeved on one end of the first rotating shaft, a second transmission gear (464) fixedly sleeved on the other end of the first rotating shaft, a third transmission gear (465) fixedly sleeved on one end of the third rotating shaft and meshed with the first transmission gear, a fourth transmission gear (466) fixedly sleeved on the other end of the third rotating shaft, a fifth transmission gear (467) fixedly sleeved on one end of the second rotating shaft and meshed with the fourth transmission gear, a sixth transmission gear (468) fixedly sleeved on the other end of the second rotating shaft, a seventh transmission gear (469) fixedly sleeved on one end of the fourth rotating shaft and meshed with the second transmission gear, and an eighth transmission gear (470) fixedly sleeved on the other end of the fourth rotating shaft and meshed with the sixth transmission gear, A driving shaft (471) rotatably arranged on the door frame, and a ninth transmission gear (472) fixedly sleeved on the driving shaft and meshed with the fifth transmission gear.
5. The sound-insulating explosion-proof type civil air defense door according to claim 1, characterized in that: the switch device (5) comprises a second screw rod (51) arranged on the civil air defense door body, a third screw rod (52) arranged under the second screw rod and arranged on the civil air defense door body, a fourth screw rod (53) arranged on one side of the second screw rod and arranged on the civil air defense door body, a fifth screw rod (54) arranged on one side of the third screw rod and arranged under the fourth screw rod and arranged on the civil air defense door body, a fifth rotating shaft (55) arranged between the second screw rod and the third screw rod and penetrating through the civil air defense door body in a rotatable manner, a sixth rotating shaft (56) arranged between the fifth screw rod and the fourth screw rod and penetrating through the civil air defense door body in a rotatable manner, a first rotating rod (57) and a second rotating rod (58) fixedly arranged at two ends of the fifth rotating shaft, third rotating rods (59) and fourth rotating rods (510) fixedly arranged at two ends of the sixth rotating shaft, a first clamping plate (511) and a first fixing rod (515) fixedly arranged on the second screw rod, The fixed second cardboard (512) and the second dead lever (516) of locating on the third screw rod, fixed third cardboard (513) and the third dead lever (517) of locating on the fourth screw rod, fixed fourth cardboard (514) and the fourth dead lever (518) of locating on the fifth screw rod, both ends rotate respectively and locate first connecting rod (519) on first dead lever and second dead lever, both ends rotate respectively and locate second connecting rod (520) on third dead lever and fourth dead lever, run through first fixed axle (521) that movably locate on the second rotating rod and one end is fixed to be located on first connecting rod, run through second fixed axle (522) that movably locate on the fourth rotating rod and one end is fixed to be located on the second connecting rod, locate first draw-in groove (523) on the door frame, second draw-in groove (524) and third draw-in groove (525) and fourth draw-in groove (526).
6. The sound-insulating explosion-proof type civil air defense door according to claim 1, characterized in that: the sound insulation sealing device (6) comprises a first rubber sealing gasket (61) fixedly arranged on a door frame, a first arc-shaped groove (62), a second arc-shaped groove (63), a first special-shaped groove (64) and a second special-shaped groove (65) which are arranged on the first rubber sealing gasket, a second rubber sealing gasket (66) fixedly arranged on a civil air defense door body, a first arc-shaped convex block (67), a second arc-shaped convex block (68), a first special-shaped convex block (69) and a second special-shaped convex block (610) which are arranged on the second rubber sealing gasket, a first sealing plate (611) fixedly arranged on the civil air defense door body, a roller (612) rotatably arranged on the first sealing plate, and an arc-shaped surface (613) arranged on the door frame.
7. The sound-insulating explosion-proof type civil air defense door according to claim 1, characterized in that: the sound insulation sealing device (6) further comprises a plurality of first guide rods (614) fixedly arranged on the door frame, a plurality of second sealing plates (615) movably sleeved on the plurality of first guide rods simultaneously, first springs (616) sleeved on the first guide rods and fixedly arranged at one ends of the first guide rods and the second sealing plates at two ends respectively, a plurality of second guide rods (617) fixedly arranged on the door frame, a plurality of third sealing plates (618) movably sleeved on the plurality of second guide rods simultaneously, second springs (619) sleeved on the second guide rods and fixedly arranged at one ends of the second guide rods and the third sealing plates at two ends respectively, a first cavity (620) arranged on the second sealing plate, a second cavity (621) symmetrically arranged on the third sealing plate with the first cavity, a first cavity (622) movably arranged in the first cavity, a second slide (623) movably arranged in the second cavity, Rotate first gyro wheel (624) of locating on the first slide, rotate second gyro wheel (625) of locating on the second slide, both ends are fixed respectively and are located carriage release lever (626) on first slide and the second slide, the no pole motor (627) that is used for driving the carriage release lever on fixed locating the door frame, run through a plurality of third guide bars (628) of portable locating on the carriage release lever, fixed fourth closing plate (629) of locating on the same end of a plurality of third guide bars, the cover is located on the third guide bar and both ends are fixed respectively and are located third spring (630) on fourth closing plate and carriage release lever, fixed locating touch switch (631) that is used for controlling no pole motor to start on the door frame.
CN202010741986.3A 2020-07-29 2020-07-29 Sound-proof explosion-proof type civil air defense door Active CN111963025B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010741986.3A CN111963025B (en) 2020-07-29 2020-07-29 Sound-proof explosion-proof type civil air defense door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010741986.3A CN111963025B (en) 2020-07-29 2020-07-29 Sound-proof explosion-proof type civil air defense door

Publications (2)

Publication Number Publication Date
CN111963025A true CN111963025A (en) 2020-11-20
CN111963025B CN111963025B (en) 2021-07-13

Family

ID=73362984

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010741986.3A Active CN111963025B (en) 2020-07-29 2020-07-29 Sound-proof explosion-proof type civil air defense door

Country Status (1)

Country Link
CN (1) CN111963025B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114197991A (en) * 2021-12-15 2022-03-18 广东正盾人防工程防护设备有限公司 Engineering civil air defense door and installation method thereof

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561302B1 (en) * 1984-03-14 1986-09-19 Realisa Const Metalliques Et PIVOTING PROTECTION AND CLOSING PANEL, SUCH AS DOORS, SHUTTERS, AND THE SLEEPING FRAME THEREOF, APPLICABLE IN PARTICULAR TO ANTI-ATOMIC SHELTERS AND THE LIKE, FOR STRONG ROOMS
US7617606B2 (en) * 2003-08-21 2009-11-17 Inno-Tech Plastics, Inc. Composite door, door core and method of manufacture
CN206668069U (en) * 2017-03-07 2017-11-24 广东怡发门窗科技有限公司 A kind of novel aluminum alloy structure of folding door
CN208396603U (en) * 2018-06-14 2019-01-18 合肥市永兴人防工程有限公司 Armored concrete movable sill sealed door
CN109553380A (en) * 2019-01-16 2019-04-02 温州嘉豪建设有限公司 A kind of bridge construction concrete formulation and preparation method thereof
DE102018103183A1 (en) * 2018-02-13 2019-08-14 Novoferm Riexinger Türenwerke GmbH Fire containment element
CN106986609B (en) * 2017-04-25 2019-09-03 浙江华鼎市政建设有限公司 Bridge inherent stress mud-jacking and its construction technology
CN110500009A (en) * 2019-07-25 2019-11-26 潜山县九鼎精密机械有限公司 A kind of civil air defense constructions and installations shock resistance composite protective door
KR102066132B1 (en) * 2019-04-10 2020-01-14 (주)동광기업 A fiber reinforced blast resistance door
CN210918762U (en) * 2019-08-24 2020-07-03 河南省金鑫防护设备有限公司 Reinforced concrete protective airtight door leaf

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2561302B1 (en) * 1984-03-14 1986-09-19 Realisa Const Metalliques Et PIVOTING PROTECTION AND CLOSING PANEL, SUCH AS DOORS, SHUTTERS, AND THE SLEEPING FRAME THEREOF, APPLICABLE IN PARTICULAR TO ANTI-ATOMIC SHELTERS AND THE LIKE, FOR STRONG ROOMS
US7617606B2 (en) * 2003-08-21 2009-11-17 Inno-Tech Plastics, Inc. Composite door, door core and method of manufacture
CN206668069U (en) * 2017-03-07 2017-11-24 广东怡发门窗科技有限公司 A kind of novel aluminum alloy structure of folding door
CN106986609B (en) * 2017-04-25 2019-09-03 浙江华鼎市政建设有限公司 Bridge inherent stress mud-jacking and its construction technology
DE102018103183A1 (en) * 2018-02-13 2019-08-14 Novoferm Riexinger Türenwerke GmbH Fire containment element
CN208396603U (en) * 2018-06-14 2019-01-18 合肥市永兴人防工程有限公司 Armored concrete movable sill sealed door
CN109553380A (en) * 2019-01-16 2019-04-02 温州嘉豪建设有限公司 A kind of bridge construction concrete formulation and preparation method thereof
KR102066132B1 (en) * 2019-04-10 2020-01-14 (주)동광기업 A fiber reinforced blast resistance door
CN110500009A (en) * 2019-07-25 2019-11-26 潜山县九鼎精密机械有限公司 A kind of civil air defense constructions and installations shock resistance composite protective door
CN210918762U (en) * 2019-08-24 2020-07-03 河南省金鑫防护设备有限公司 Reinforced concrete protective airtight door leaf

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114197991A (en) * 2021-12-15 2022-03-18 广东正盾人防工程防护设备有限公司 Engineering civil air defense door and installation method thereof
CN114197991B (en) * 2021-12-15 2023-03-07 广东正盾人防工程防护设备有限公司 Engineering civil air defense door and installation method thereof

Also Published As

Publication number Publication date
CN111963025B (en) 2021-07-13

Similar Documents

Publication Publication Date Title
CN111963025B (en) Sound-proof explosion-proof type civil air defense door
CN105818270A (en) Cement even stirring device for buildings
CN205731355U (en) A kind of interior decoration ceramic tile breaker that gives up
KR101363896B1 (en) Accelerate dry concrete mix composition
CN208577928U (en) A kind of quick breaking device of novel building concrete
KR101323591B1 (en) Concrete composition using the electric arc furnace oxidizing slag and second articles prepared with the same
Zhou et al. Effects of calcium formate on early-age strength and microstructure of high-volume fly ash cement systems
DE260322T1 (en) BASIC FIREPROOF PREPARATION.
CN209909179U (en) Valve plate resetting device of double-layer ash discharge valve
CN209293258U (en) One kind assembling magnetic-type steel-entirely and mixes composite floor plate
JPS6013990B2 (en) Manufacturing method of molded body
CN221066665U (en) Crack-resistant precast formwork for concrete
CN215640644U (en) Concrete sample shock resistance detection device
CN215290763U (en) Assembled building wall convenient to installation
JPS5838376B2 (en) Inorganic binder
ES2059145T3 (en) PROCEDURE FOR THE MANUFACTURE OF BINDERS RICH IN CALCIUM HYDROXIDE FOR CONCRETE AND MORTARS AND ONE OF THE BINDERS SO PRODUCED.
CN106673539A (en) High-earthquake resistance waterproof concrete
Li et al. The appropriate chemical admixture for alkali-activated cementitious material
CN109138711A (en) Open/close system for electric slide door and its application method
CN211313924U (en) Airtight shielding structure of people's air defense
CN115971526A (en) Production and processing equipment for handrail glass supporting structure
CN218436767U (en) Wing gate wing plate telescopic structure
CN219382411U (en) Vehicle emergency call equipment with broken window structure
CN219522518U (en) Tubular pile centrifugal forming equipment
JPS6168361A (en) Manufacture of concrete centrifugally molded body

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant