CN111852286B

CN111852286B - Explosion-proof ripples people's air defense door

Info

Publication number: CN111852286B
Application number: CN202010779661.4A
Authority: CN
Inventors: 姚惠红
Original assignee: Shenzhen Fuhao Civil Air Defense Engineering Equipment Co ltd
Current assignee: SHENZHEN FUHAO CIVIL AIR DEFENSE ENGINEERING EQUIPMENT Co.,Ltd.
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-06-15
Anticipated expiration: 2040-08-05
Also published as: CN111852286A

Abstract

The invention discloses an anti-explosion wave civil air defense door which comprises a door frame embedded in a wall body, a door body arranged in the door body, a first rotating piece arranged on the door frame and used for opening and closing the door body, an anti-explosion wave structure arranged on the door body, a bolt structure used for fixing the door body and a concrete layer filled in the door body, wherein the bolt structure is arranged on the door body; the concrete layer is prepared from 425 common cement, 0.41 water cement ratio, 10-30 mm crushed stone grain size and medium coarse sand through carrying out dry distillation; the material for each cubic concrete: carrying out high-speed flowering on 482 kilograms of cement, 200 kilograms of water, 0.45m from medium grit and 0.79m from macadam; according to the invention, through adjusting the internal concrete, the concrete poured in the door can be ensured to be spread over all corners in the door, the occurrence of pouring dead angles is avoided, the shrinkage is small, the concrete can be tightly attached to the inner wall, and the strength of the concrete is ensured, so that the integral anti-extrusion capability of the door body is effectively improved, the durability is strong, the service life of the civil defense door is ensured, and the maintenance cost is reduced.

Description

Explosion-proof ripples people's air defense door

Technical Field

The invention belongs to the technical field of civil air defense, and particularly relates to an explosion-proof civil air defense door.

Background

In the civil air defense engineering, the civil air defense door always occupies a huge specific gravity and is always the direction which is taken into consideration by people, the strength of the civil air defense door needs to be ensured in the daily use process, the most important part of the civil air defense door is the impact resistance of the civil air defense door, gaps are generated in the filling process of concrete often in the pouring process of the concrete, or the contact between the concrete and the inner wall of the door body is not firm after the filling is finished, the whole defense effect of the civil air defense door is poor due to the non-lamination, even the inner concrete can not meet the appointed strength requirement when the impact is received, so that the door body is deformed, the whole impact can not be blocked, the personal safety can not be ensured, and the cost is greatly increased if the civil air defense door is replaced.

Disclosure of Invention

The invention provides the explosion-proof wave civil air defense door with good use effect and strong pressure resistance in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: an anti-explosion wave civil air defense door comprises a door frame embedded in a wall body, a door body arranged in the wall body, a first rotating piece arranged on the door frame and used for opening and closing the door body, an anti-explosion wave structure arranged on the door body, a bolt structure used for fixing the door body and a concrete layer filled in the door body; the concrete layer is prepared from 425 ordinary cement, 0.41 water-cement ratio, 10-30 mm gravel particle size and medium coarse sand through carrying out dry distillation; the material for each cubic concrete: carrying out high-speed flowering on 482 kilograms of cement, 200 kilograms of water, 0.45m from medium grit and 0.79m from macadam; according to the invention, through adjusting the internal concrete, the concrete poured in the door can be ensured to be spread over all corners in the door, the occurrence of pouring dead angles is avoided, the shrinkage is small, the concrete can be tightly attached to the inner wall, and the strength of the concrete is ensured, so that the integral anti-extrusion capability of the door body is effectively improved, the durability is strong, the service life of the civil defense door is ensured, and the maintenance cost is reduced.

The anti-explosion wave structure comprises a first cavity arranged on the door body, a vent hole arranged on the wall of the first cavity, a blocking block capable of moving back and forth in the first cavity, a wave collecting cover arranged on the blocking block, depressions uniformly distributed on the wave collecting cover, a first elastic piece arranged in the first cavity and used for resetting the blocking block, an air flow channel arranged on the blocking block, an air baffle sheet arranged on the blocking block, a torsion spring arranged on the air baffle sheet, a limiting structure arranged on the blocking block and a stone baffle structure arranged on the circumferential direction of the blocking block; when the explosion happens and the danger comes, the impact of the explosion wave can impact the wave collecting cover on the blocking block, the wave facing surface of the wave collecting cover is larger, so that the received impact force is more complete, and the received impact is more increased, thereby ensuring that the blocking block can block the vent hole in time when the impact arrives, and the air flow is also covered by the air baffle plate at the moment, thereby realizing the sealing, thereby effectively preventing the explosion wave from entering the door to cause damage to people relatively close to the door, meanwhile, through the arrangement of the concave part on the blocking block, further increasing the contact area of the blocking block, further sealing the vent hole more quickly through the impact of the explosion wave, simultaneously, through the arrangement of the limit structure, after the explosion wave is finished, the valve on the door is still in the closed state, the door in the state can isolate the air communication with the outside, and because the outside is influenced by the explosion wave, therefore, the large dust is easy to generate, if the excessive dust enters the door through the vent hole, the air inside the door is greatly polluted, people are difficult to stay in a room filled with the dust for a long time, especially children, the dust is also large for hurting the lungs of the children, meanwhile, the smoke smell and even toxic gas generated after explosion can enter the door through the vent hole, the door is not provided with a good measure for removing magazines in the air, and the form of the closed vent hole is fixed to a certain extent, so that the dust is prevented from entering the door, and the safety of internal personnel is guaranteed.

The limiting structure comprises concave teeth arranged on two sides of the blocking block, a second cavity arranged on the side wall of the first cavity, a second rotating part arranged in the second cavity, a first rotating block sleeved on the second rotating part, an accommodating cavity arranged on the side wall of the second cavity, a second elastic part arranged in the accommodating cavity and used for resetting the first rotating block, a third cavity arranged on one side of the first rotating block, a first sliding block capable of moving back and forth in the third cavity, clamping convex teeth arranged on the first sliding block, a third elastic part arranged in the third cavity and used for resetting the first sliding block, a fixing structure arranged on the other side of the first rotating block and a manual closing structure arranged on the blocking block; when the wave collecting plate is impacted, the blocking block is pushed to move inwards, so that the first sliding block in the fixed first rotary block continuously performs a compression and bounce process under the action of the second elastic piece until the explosion wave is finished, or the blocking block moves to the bottom position, at the moment, the clamping convex teeth on the first sliding block are clamped into the concave teeth on the two sides of the blocking block so as to fix the blocking block, the blocking block can be stopped at any position through the arrangement of the concave teeth and the clamping convex teeth, so that even if the impact wave is small, a good sealing effect can be achieved on the vent hole, the sealing effect is faster and better, after danger is passed, ventilation is needed, at the moment, the fixing structure is adjusted, the fixing structure loses extrusion on the first rotary block, so that the rotary block rotates, at the moment, the first rotary block is subjected to outward elastic force of the first elastic piece, so that the rotary block rotates around the second rotary piece, the joint dogtooth after the rotation has lost the ability of the fixed shutoff piece of joint, thereby the shutoff piece outwards pops out, the air gets into along the air vent afterwards, after the joint dogtooth breaks away from the shutoff piece completely, thereby first piece will reset under the effect of third elastic component soon, the process of unblock has been accelerated on the one hand to unblock through rotatory mode, make the unblock process rapider, on the other hand, unblock through rotatory mode, can effectively reduce that the joint dogtooth breaks away from the damage of the shutoff piece to the joint dogtooth, thereby the life of apparatus has effectively been prolonged, the damage of apparatus has been reduced, the maintenance cost has been reduced.

The fixing structure comprises an extension block arranged on the first sliding block, a notch arranged on the extension block, a hole arranged on one side of the accommodating cavity, a fourth cavity arranged on the door body, a second sliding block capable of moving back and forth in the fourth cavity, an additional block fixedly arranged on one side of the second sliding block, a fourth elastic piece arranged in the fourth cavity and used for resetting the additional block, a contact pin arranged on one side of the second sliding block and a baffle arranged on the other side of the second sliding block; when ventilation is needed, the baffle is pulled to move outwards, the second sliding block is driven to move outwards while moving outwards, the contact pin on the second sliding block is continuously taken out of the hole, so that the second sliding block which is continuously taken out gradually loses fixation of the extending block on the first sliding block, the first rotating block loses the limit of the first rotating block, the first rotating block rotates and loses the limit of the concave tooth, unlocking is completed, the structure is simple, operation is smooth, the second sliding block is always in a touch state with the extending block, the second sliding block resets inwards under the action of the fourth elastic piece after people do not apply pulling force to the baffle any more, the first rotating block is continuously extruded to rotate and finally resets, the inserted rod is inserted into the hole, fixing of the first rotating block is completed, and the unlocking mode is simplified through the arrangement of the structure, the unlocking can be completed only by pulling the baffle, so that the operation of internal personnel is greatly facilitated.

The manual closing structure comprises a fifth cavity arranged on the blocking block, a threaded component capable of moving back and forth in the fifth cavity, a ninth elastic part used for pushing the threaded component, extending blocks arranged on two sides of the third sliding block, a first inclined plane arranged on the extending blocks, a limiting block arranged in the fifth cavity, a first threaded rod used for driving the threaded component to move, a first handle arranged at one end of the first threaded rod, a fixed block arranged in the fifth cavity, a fifth elastic part arranged in the fifth cavity and used for resetting the fixed block, a slideway arranged on the fixed block and a resetting structure arranged on the door body; the threaded component is sleeved on the first threaded rod; the slide way is composed of a plurality of sections of inclined planes and a vertical plane; when the outside is full of toxic gas and then explosion shock waves do not exist, the sealing block can be continuously pulled to move inwards by rotating the first handle through the matching between the threaded component and the first threaded rod, so that the clamping is fixed in the clamping convex teeth, the connection with the outside can be timely disconnected, the influence of the toxic gas or dust on the inside is ensured, the extending block is provided with the first inclined surface, the extending block can be better clamped in the slide way on the fixed block and slides to be divided into multiple sections, when the extending block is in an inclined surface state, the middle thrust is carried out on the two threaded components, so that the two threaded components are continuously close to each other, the final clamping is carried out in a vertical plane on the fixed block, the extending blocks on the two sides are effectively prevented from moving outwards by the arrangement of the vertical plane, and the integrity of the threaded components is ensured, thereby guaranteed that the screw thread subassembly can remove under the drive of threaded rod, and the setting of stopper will effectively guarantee the nearest distance between two screw thread subassemblies, guaranteed screw thread subassembly's stability, thereby avoid two sets of screw thread subassembly joints too closely to produce and rock to lead to the damage between the screw thread.

The threaded component comprises a block body, a sixth cavity arranged on the block body, a third rotating piece arranged in the sixth cavity, a first threaded block sleeved on the third rotating piece, and an auxiliary structure arranged on one side of the sixth cavity; the screw assembly is a one-way operation structure, when the first handle is rotated manually, the first screw block is tightly attached to the side wall of the sixth cavity, so that the engagement between the screw block and the screw rod is realized, the blocking block is controlled to move, when the first handle is impacted by a blast wave, the first screw block rotates around the third rotating piece to a certain degree, the third rotating piece is arranged at the corner of the sixth cavity and at a position close to one side of the first screw block, so that when the first screw block rotates, the third rotating piece rotates around the corner, when the first screw block is in the original position, the position closest to the screw rod is the position closest to the screw rod, when the first screw block rotates around the third rotating piece, the screw thread on the first screw block is away from the whole, and the screw rod is arranged, so that the contact between the screw rod and the first screw block is effectively reduced, thereby reducing the damage between the threads and effectively prolonging the service life.

The auxiliary structure comprises a seventh cavity arranged on one side of the sixth cavity, a second thread block arranged in the seventh cavity, a sixth elastic piece arranged in the seventh cavity and used for resetting the second thread block, a first clamping port arranged on the second thread block, a through groove arranged on the side wall of the sixth cavity and a fourth sliding block arranged in the through groove; when first screw thread piece joint in the threaded rod, thereby because the rotation of threaded rod first screw thread piece will increase the extrusion force to the lateral wall, thereby extrude the fourth slider, the removal of fourth slider will joint in the second screw thread piece, thereby promote the second screw thread piece and remove, the second screw thread piece will be constantly close to the threaded rod under the squeezing action of fourth slider, thereby make the screw thread on the second screw thread piece mesh in the threaded rod, thereby played more stable transmission, effectively strengthened its stability, guaranteed the operation between the equipment, thereby effectively reduced the threaded rod in the possibility of pivoted in-process slide bar, guaranteed the convenience of artifical closing, thereby the length through the extension screw hole has improved the driven stability of threaded rod.

The resetting structure comprises a second clamping interface arranged on the fixed block, an extension block arranged on the fixed block, a sliding chute arranged on the side wall of the first cavity, a clamping block capable of moving back and forth in the sliding chute, a seventh elastic piece arranged in the sliding chute and used for resetting the clamping block, a through hole arranged at the top end of the sliding chute and a rope body penetrating through the through hole; one end of the rope body is connected to the clamping block, and the other end of the rope body is connected to the baffle; when the blocking block is clamped at the tail end of the first cavity, the clamping block is clamped into the second clamping port, when the blocking block needs to be reset, the baffle plate is pulled, so that the rope body pulls the clamping block to continuously move upwards, the continuous upward movement of the clamping block drives the fixed block to move upward, at the moment, the extension block moves upward due to the fixed block in the clamping of the slide way in the fixed block, thereby releasing the limit on the block body, leading the block body to face to the opposite direction under the action of the fourth elastic piece so as to separate the block body and the fourth elastic piece, leading the first thread block and the second thread block to lose the limit on the threaded rod, so that under the action of the first elastic piece, the blocking block is popped out to complete the reset, at the moment, the air is filled in from the vent hole, the two unlocking positions can be completed by pulling the baffle plate, so that the operation difficulty is effectively reduced.

The stone blocking structure comprises a fourth rotating part arranged on the periphery of the wave collecting cover, a first stone blocking sheet arranged on the fourth rotating part, barrel air grooves uniformly formed in the stone blocking plate, a fixed block arranged at the corner of the wave collecting cover, a rotating rod with one end rotatably connected to the fixed block, a second stone blocking sheet sleeved on the rotating rod, a clamping groove formed in the second stone blocking sheet, and an eighth elastic part arranged on the wave collecting cover and used for resetting the first stone blocking sheet; two ends of the first stone blocking piece are respectively clamped into the corresponding clamping grooves; a certain flying stone is often generated in the impact process of the detonation wave, the flying stone is easy to fly into the space between the plugging block and the door body in the motion process, thereby leading the blocking block to be incapable of being completely closed, effectively ensuring that the flying stones cannot fly into the blocking block through the arrangement of the first stone blocking piece, and the first stone blocking piece is connected by the fourth rotating piece, so that the first stone blocking piece is attached to the surface of the door body when the blocking block is close to the door body, thereby preventing flying stones from entering, and the corners are connected in the fixed blocks through the rotary rods, the second stone baffles are respectively arranged at the two sides of the rotary rods and are sleeved on the first stone baffles at the two sides, thereby when first fender stone piece rotated, the second fender stone piece will rotate simultaneously, and effectively blocked the gap of first fender stone piece with the corner to further guaranteed that the flyrock can't get into wherein, effectively guaranteed the stability of apparatus.

The bolt structure comprises an eighth cavity arranged on one side of the door body, a first gear arranged in the eighth cavity, a second handle used for driving the first gear, a second gear arranged in the eighth cavity, a first helical gear arranged on the second gear, a sleeve joint arranged on the door body, an insertion rod penetrating in the sleeve joint, a support arranged on the door body, a second threaded rod arranged on the support, a second helical gear sleeved on the second threaded rod, a third threaded block sleeved on the second threaded rod, and a connecting rod with one end rotatably connected to the third threaded block; the first bevel gear is matched with the second bevel gear; the other end of the connecting rod is connected to the end of the inserting rod; thereby drive first gear through rotating second handle and rotate, the rotation of first gear will drive the rotation of second gear, and first helical gear and second gear fixed connection, first helical gear at this moment will rotate with second gear with the same speed, through the meshing transmission between first helical gear and the second helical gear afterwards, thereby drive the second threaded rod and rotate, the rotation of second threaded rod will make the third threaded block that sets up above that remove, and the removal of third threaded block will effectively promote stretching out of inserted bar, accomplish the joint, the driven mode through the second threaded rod will effectively improve the stability of third threaded block, thereby effectively improved the stability of inserted bar, thereby effectively increased confined stability.

According to the invention, through adjusting the internal concrete, the concrete poured in the door can be ensured to be spread over all corners in the door, the occurrence of pouring dead angles is avoided, the shrinkage is small, the concrete can be tightly attached to the inner wall, and the strength of the concrete is ensured, so that the integral anti-extrusion capability of the door body is effectively improved, the durability is strong, the service life of the civil defense door is ensured, and the maintenance cost is reduced.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a first structural schematic view of the present invention with the door frame and the first rotating member hidden.

Fig. 3 is a second structural schematic view of the present invention with the door frame and the first rotating member hidden.

Fig. 4 is a schematic structural view of fig. 3 with the baffle hidden.

Fig. 5 is a right side view of fig. 2.

Fig. 6 is a front view of fig. 2.

Fig. 7 is a partially enlarged schematic view of fig. 3.

Fig. 8 is a partially enlarged schematic view of the wave-collecting cover.

Fig. 9 is a cross-sectional view of fig. 5 taken along line a-a.

Fig. 10 is a partially enlarged schematic view of fig. 9.

Fig. 11 is a partially enlarged schematic view of fig. 10.

Fig. 12 is a perspective cross-sectional view of fig. 5 taken along line B-B.

Fig. 13 is a partially enlarged schematic view of fig. 12.

Fig. 14 is a perspective cross-sectional view of fig. 6 taken along line C-C.

Fig. 15 is a partially enlarged schematic view of fig. 14.

Fig. 16 is a partially enlarged schematic view of fig. 15.

Fig. 17 is a partially enlarged schematic view of fig. 2.

Fig. 18 is a perspective view of the threaded assembly.

Fig. 19 is a front view of the threaded assembly.

Fig. 20 is a cross-sectional view of fig. 19 taken along line D-D.

Detailed Description

As shown in fig. 1-20, an anti-explosion wave civil air defense door comprises a door frame 1, a door body 2, a first rotating member 3, an anti-explosion wave structure 4, a bolt structure 5 and a concrete layer 8; the door frame 1 is embedded in a wall body, the door body 2 is arranged in the wall body, the first rotating piece 3 is arranged on the door frame to open and close the door body, the anti-explosion wave structure 4 is arranged on the door body, the bolt structure 5 is used for fixing the door body, and the concrete layer 8 is filled in the door body; the method is characterized in that: the concrete layer is prepared from 425 common cement, 0.41 water cement ratio, 10-30 mm crushed stone grain size and medium coarse sand through carrying out dry distillation; the material for each cubic concrete: carrying out high-speed flowering on 482 kilograms of cement, 200 kilograms of water, 0.45m from medium grit and 0.79m from macadam; the reinforcing steel bars are inserted into the door body in advance, which is a common means in the field and is not described herein again.

As shown in fig. 6, 8-9 and 15, the blast-proof structure 4 includes a first cavity 41, a vent hole 42, a blocking block 43, a wave-collecting cover 44, a recess 45, a first elastic member 46, a gas flow channel 47, a gas blocking sheet 48, a torsion spring 49, a limiting structure 6 and a stone blocking structure 7; the first cavity 41 is arranged on the door body, the vent hole 42 is arranged on the wall of the first cavity, the blocking block 43 can move back and forth in the first cavity, the blocking block is square and can be modified as required, preferably, the turning part can be selected as a round angle, friction of the blocking block can be effectively reduced, the wave collecting cover 44 is arranged on the blocking block, the depressions 45 are uniformly distributed on the wave collecting cover, the depressions are uniformly or irregularly arranged on the wave collecting cover, the first elastic piece 46 is arranged in the first cavity and is used for resetting the blocking block, the first elastic piece is arranged as a spring, the airflow channel 47 is arranged on the blocking block, the air blocking piece 48 is arranged on the blocking block, the torsion spring 49 is arranged on the air blocking piece, the limiting structure 6 is arranged on the blocking block, and the stone blocking structure 7 is arranged in the circumferential direction of the blocking block.

As shown in fig. 9-10, the limiting structure 6 includes a concave tooth 61, a second cavity 62, a second rotating member 63, a first rotating block 64, an accommodating cavity 65, a second elastic member 66, a third cavity 67, a first sliding block 68, a clamping convex tooth 69, a third elastic member 610, a fixing structure 9, and a manual closing structure 10; the concave teeth 61 are arranged on two sides of the blocking block, the second cavity 62 is arranged on the side wall of the first cavity, the second rotating member 63 is arranged in the second cavity, the first rotating member 64 is sleeved on the second rotating member, the accommodating cavity 65 is arranged on the side wall of the second cavity, the accommodating cavity and the second cavity are at a certain inclination angle, the accommodating cavity is used for providing a rotating space of the first rotating member, the second elastic member 66 is arranged in the accommodating cavity and used for resetting the first rotating member, the second elastic member is arranged as an elastic sheet, the third cavity 67 is arranged on one side of the first rotating member, the first slide block 68 can move back and forth in the third cavity, the clamping convex teeth 69 are arranged on the first slide block, the third elastic member 610 is arranged in the third cavity and used for resetting the first slide block, the third elastic member is arranged as a spring, the fixing structure 9 is arranged on the other side of the first rotating member, a manual closure structure 10 is provided on the block.

As shown in fig. 5 and 10-11, the fixing structure 9 includes an extension block 91, a notch 92, a hole 93, a fourth cavity 94, a second slider 95, an increasing block 96, a fourth elastic member 97, a pin 98, and a baffle 99; the extension block 91 is arranged on the first sliding block, the notch 92 is arranged on the extension block, the hole 93 is arranged on one side of the accommodating cavity, the fourth cavity 94 is arranged on the door body, the second sliding block 95 can move back and forth in the fourth cavity, the increasing block 96 is fixedly arranged on one side of the second sliding block and is a block body arranged on one side of the second sliding block, the fourth elastic piece 97 is arranged in the fourth cavity and is used for resetting the increasing block, the contact pin 98 is arranged on one side of the second sliding block, and the baffle 99 is arranged on the other side of the second sliding block; thereby adopt the mode of contact pin to carry out the fixed of displacement from top to bottom to the second slider to increase its stability.

As shown in fig. 4, 12-13, 16, and 18-19, the manual closing structure 10 includes a fifth cavity 101, a threaded component 11, a ninth elastic component 1101, an extension block 102, a first inclined surface 103, a stop block 104, a first threaded rod 105, a first handle 106, a fixed block 107, a fifth elastic component 108, a slideway 109, and a restoring structure 12; the fifth cavity 101 is opened on the plugging block, the screw assembly 11 can move back and forth in the fifth cavity, the screw assembly is sleeved on the first threaded rod, the ninth elastic component 1101 is used for resetting the screw assembly, the extension block 102 is arranged on two sides of the third slider, the first inclined plane 103 is arranged on the extension block, the limiting block 104 is arranged in the fifth cavity, the first threaded rod 105 is used for driving the screw assembly to move, the first handle 106 is arranged at one end of the first threaded rod, the first handle is the conventional and common technology, and is not repeated here, the fixing block 107 is arranged in the fifth cavity, the fixing block is in a structure in a shape of Chinese character 'shan', the horizontal position in the shape of Chinese character 'shan' is a structure in an inclined plane and is used for gathering the screw assembly, the vertical plane is used for fixing the screw assembly after gathering together, the fifth elastic component 108 is arranged in the fifth cavity and is used for resetting the fixing, the slide 109 is arranged on the fixed block, the slide is composed of a plurality of sections of inclined planes and a vertical plane, and the reset structure 12 is arranged on the door body.

As shown in fig. 18-20, the threaded assembly 11 includes a block 111, a sixth cavity 112, a third rotating member 113, a first threaded block 114, and an auxiliary structure 13; the block is rectangular block structure, and sixth cavity 112 locates on the block, third rotating member 113 locates in the sixth cavity, third rotating member is close to the corner position of sixth cavity, and first screw thread piece 114 cover is located on the third rotating member, auxiliary structure 13 locates sixth cavity one side.

As shown in fig. 20, the auxiliary structure 13 includes a seventh cavity 131, a second thread block 132, a sixth elastic member 133, a first clamping interface 134, a through slot 135, and a fourth sliding block 136; the seventh cavity 131 is arranged on one side of the sixth cavity, the second thread block 132 is arranged in the seventh cavity, the sixth elastic piece 133 is arranged in the seventh cavity and used for resetting the second thread block, the first clamping port 134 is arranged on the second thread block, the through groove 135 is arranged on the side wall of the sixth cavity, and the fourth sliding block 136 is arranged in the through groove.

As shown in fig. 14-16, the reduction structure 12 includes a second clip interface 121, an extension block 122, a sliding groove 123, a clip block 124, a seventh elastic member 125, a thread hole 126, and a rope 127; second joint mouth 121 sets up in on the fixed block 107, extension piece 122 is located on the fixed block, spout 123 sets up in on the first cavity lateral wall, joint piece 124 can round trip movement in the spout, the joint piece is a miniature L shape structure, and seventh elastic component 125 is located be used for reseing in the spout the joint piece, seventh elastic component here sets up to the spring, and through-hole 126 sets up in the spout top, and the preferred can be in through-hole downthehole leading wheel that sets up to reduce the wearing and tearing of the rope body, rope body 127 wears to locate in the through-hole, the rope body is for guaranteeing its durable degree, can adopt chain etc, rope body one end connect in on the joint piece, the other end connect in on the baffle.

As shown in fig. 2 to 17, the stone blocking structure 7 includes a fourth rotating member 71, a first stone blocking piece 72, a barrel air groove 73, a fixing block 74, a rotating rod 75, a second stone blocking piece 76, a clamping groove 77, and an eighth elastic member 78; fourth rotating member 71 is located ripples cover circumference, first fender stone piece 72 are located on the fourth rotating member, bucket gas groove 73 evenly set up in on the fender stone board, fixed block 74 is located ripples cover corner, swing arm 75 one end swivelling joint in on the fixed block, second fender stone piece 76 cover is located on the swing arm, joint groove 77 is seted up in on the second fender stone piece, the both ends of first fender stone piece are blocked respectively in the corresponding joint inslot, and eighth elastic component 78 is located be used for restoring to the throne on the ripples cover of collection first fender stone piece, second fender stone piece are with the form centre gripping second that presss from both sides with the fender stone piece, when first fender stone piece overturns, second fender stone piece will overturn thereupon, and continuous joint gets into in the second fender stone piece to guaranteed that second fender stone piece can have certain cover capacity to corner.

As shown in fig. 4 and 7, the plug pin structure 5 includes an eighth cavity 51, a first gear 52, a second handle 53, a second gear 54, a first helical gear 55, a socket 56, an insertion rod 57, a bracket 58, a second threaded rod 59, a second helical gear 510, a third threaded block 511, and a connecting rod 512; the eighth cavity 51 is opened on one side of the door body, the first gear 52 is arranged in the eighth cavity, the second handle 53 is used for driving the first gear, the second gear 54 is arranged in the eighth cavity, the first helical gear 55 is arranged on the second gear, the socket joint 56 is arranged on the door body, the plug-in connection rod 57 is arranged in the socket joint in a penetrating way, the support 58 is arranged on the door body, the second threaded rod 59 is arranged on the support, the second helical gear 510 is sleeved on the second threaded rod, the first helical gear is matched with the second helical gear, the third threaded block 511 is sleeved on the second threaded rod, one end of the connecting rod 512 is rotatably connected on the third threaded block, and the other end of the connecting rod is connected on the plug-in connection rod end.

The specific operation flow is as follows:

thereby drive first gear 52 and rotate through rotating second handle 53, the rotation of first gear will drive the rotation of second gear 54, and first helical gear 55 and second gear fixed connection, first helical gear at this moment will rotate with the second gear with the same speed, through the meshing transmission between first helical gear and the second helical gear 510 afterwards, thereby drive second threaded rod 59 and rotate, the rotation of second threaded rod will make the third screw block 511 that sets up on it remove, and the removal of third screw block will effectively promote the stretching out of peg graft pole 57, accomplish the joint, thereby close the people's air defense door.

When the explosion happens and the danger comes, the impact of the explosion wave will impact the wave collecting cover 44 on the blocking block 43, the wave facing surface of the wave collecting cover is larger, so that the impact force is more complete, and the impact is more increased, so that the blocking block can timely block the vent hole 42 when the impact reaches, through the arrangement of the upper recess 45, the contact area of the blocking block is further increased, so that the vent hole can be more quickly closed through the impact of the explosion wave, when the wave collecting plate is impacted, the blocking block is pushed to move inwards, so that the first slide block 68 in the fixed first rotary block 64 continuously performs the compression and bounce process under the action of the second elastic piece 66 until the explosion wave is ended or the blocking block moves to the bottom position, at the moment, the clamping convex teeth 69 on the first slide block are clamped into the concave teeth 61 on the two sides of the blocking block, therefore, the plugging block is fixed, the plugging block can stay at any position through the arrangement of the concave teeth and the clamping convex teeth, so that even if the shock wave is smaller, the air vent can be well sealed, the sealing effect is faster and better, meanwhile, the first thread block 114 rotates around the third rotating piece 113 to a certain degree, the third rotating piece is arranged at the corner of the sixth cavity 112 and is at a position close to one side of the first thread block, so that when the first thread block 105 rotates, the third rotating piece rotates around the corner of the third rotating piece, when the first thread block is in the original position, the position is closest to the threaded rod, when the first thread block rotates around the third rotating piece, the threads on the first thread block are wholly far away, and at the moment, the plugging block does not bear any resistance and seals the air vent, when the outside is filled with toxic gas and then explosion shock waves do not exist, the first handle 106 is rotated, at the moment, the first thread block is tightly attached to the side wall of the sixth cavity 112, so that the meshing effect between the thread block and the threaded rod is achieved, the blocking block is controlled to move, the gap between the blocking block and the door body is closed, the blocking effect is achieved, in the process that the first thread block 114 is meshed with the first threaded rod 105, the thread block continuously extrudes the fourth sliding block, the fourth sliding block 136 moves to be clamped into the second thread block, so that the second thread block 132 is pushed to move, the second thread block continuously approaches the threaded rod under the extrusion effect of the fourth sliding block, so that threads on the second thread block are meshed with the threaded rod, a more stable transmission effect is achieved, the stability of the device is effectively enhanced, and the running of the device is guaranteed, when the outside is in a safe state, the baffle is pulled, so that the rope 127 pulls the clamping block to continuously move upwards, the clamping block 124 continuously moves upwards to drive the fixing block 107 to move upwards, the extending block 102 is clamped in the slide way in the fixing block due to the upward movement of the fixing block, so that the limit of the block body is released, the block body is enabled to face to the opposite direction under the action of the fourth elastic part 97 so as to be separated from the fixing block, the first thread block and the second thread block lose the limit of the threaded rod, so that the blocking block is outwards popped under the action of the first elastic part so as to complete reset, air is filled in from the vent hole 42, the baffle 99 simultaneously moves outwards, the second slide block 95 is driven to move outwards while moving outwards, the contact pin 98 on the second slide block is continuously taken out from the hole, so that the continuously taken second slide block 95 gradually loses the fixation of the extending block 91 on the first slide block, so that the first rotary block loses the limit on the first rotary block, the first rotary block rotates, the limit on the concave teeth 61 is lost at the moment, and the unlocking is finished. In this process, the removal of shutoff piece will drive first fender stone piece 72 and overturn, and when first fender stone piece rotated, second fender stone piece 76 will rotate simultaneously, and effectively blocked the gap of first fender stone piece with the corner to further guaranteed that flying stone can't get into wherein, effectively guaranteed the stability of apparatus.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An anti-explosion wave civil air defense door comprises a door frame (1) embedded in a wall body, a door body (2) arranged in the wall body, a first rotating piece (3) arranged on the door frame and used for opening and closing the door body, an anti-explosion wave structure (4) arranged on the door body, a bolt structure (5) used for fixing the door body, and a concrete layer (8) filled in the door body; the method is characterized in that: the material formula of the concrete layer is that 425 ordinary cement, the water cement ratio is 0.41, the particle size of broken stone is 10-30 mm, and medium coarse sand is adopted as the material formula of the concrete layer; every standingThe square concrete material comprises the following components: 482 kg of cement, 200 kg of water and 0.45m of medium crude sand³Crushed stone 0.79m³(ii) a Explosion-proof ripples structure (4) are including seting up in first cavity (41) on the door body, seting up in air vent (42) on the first cavity wall, can be in the first cavity back and forth movement's block (43), locate wave collection cover (44) on the block, evenly distributed in sunken (45) on the wave collection cover, locate be used for reseing in the first cavity the first elastic component (46) of block, locate air current channel (47) on the block, locate keep off gas piece (48) on the block, locate torsional spring (49) on the fender gas piece, locate limit structure (6) on the block, locate block the stone structure (7) of block circumference.

2. The blast-resistant people vent according to claim 1, wherein: the limiting structure (6) comprises concave teeth (61) arranged on two sides of the blocking block, a second cavity (62) arranged on the side wall of the first cavity, a second rotating piece (63) arranged in the second cavity, a first rotating piece (64) sleeved on the second rotating piece, an accommodating cavity (65) arranged on the side wall of the second cavity, and a second elastic piece (66) arranged in the accommodating cavity and used for resetting the first rotating piece, set up in third cavity (67) of first commentaries on classics piece one side, can be in first slider (68) of round trip movement in the third cavity, locate joint dogtooth (69) on the first slider, locate be used for restoring to the throne in the third cavity third elastic component (610) of first slider, locate fixed knot structure (9) of opposite side on the first commentaries on classics piece, locate manual enclosed construction (10) on the shutoff piece.

3. The explosion proof wave personnel air defense door of claim 2 wherein: fixed knot constructs (9) including locating first extension piece (91), set up in on the first slider notch (92), set up in on the first extension piece hold hole (93) of chamber one side, set up in fourth cavity (94) on the door body, can round trip movement's second slider (95) in the fourth cavity, set firmly in increase piece (96) of second slider one side, locate be used for in the fourth cavity to reset increase fourth elastic component (97) of piece, locate contact pin (98) of second slider one side, locate baffle (99) of second slider opposite side.

4. The blast-resistant people vent according to claim 3, wherein: the manual sealing structure (10) comprises a fifth cavity (101) arranged on the blocking block, a threaded component (11) capable of moving back and forth in the fifth cavity, a ninth elastic part (1101) used for resetting the threaded component, second extending blocks (102) arranged on two sides of the threaded component, a first inclined plane (103) arranged on the second extending blocks, a limiting block (104) arranged in the fifth cavity, a first threaded rod (105) used for driving the threaded component to move, a first handle (106) arranged at one end of the first threaded rod, a fixed block (107) arranged in the fifth cavity, a fifth elastic part (108) arranged in the fifth cavity and used for resetting the fixed block, a slide way (109) arranged on the fixed block and a resetting structure (12) arranged on the door body; the threaded component is sleeved on the first threaded rod; the slide comprises multistage inclined plane and vertical face.

5. The blast-resistant people vent according to claim 4, wherein: the threaded component (11) comprises a block body (111), a sixth cavity (112) arranged on the block body, a third rotating piece (113) arranged in the sixth cavity, a first threaded block (114) sleeved on the third rotating piece, and an auxiliary structure (13) arranged on one side of the sixth cavity.

6. The blast-resistant people vent according to claim 5, wherein: the auxiliary structure (13) comprises a seventh cavity (131) arranged on one side of the sixth cavity, a second thread block (132) arranged in the seventh cavity, a sixth elastic piece (133) arranged in the seventh cavity and used for resetting the second thread block, a first clamping port (134) arranged on the second thread block, a through groove (135) arranged on the side wall of the sixth cavity and a fourth sliding block (136) arranged in the through groove.

7. The blast-resistant people vent according to claim 4, wherein: the resetting structure (12) comprises a second clamping interface (121) arranged on the fixed block (107), an extension block (122) arranged on the fixed block, a sliding groove (123) arranged on the side wall of the first cavity, a clamping block (124) capable of moving back and forth in the sliding groove, a seventh elastic part (125) arranged in the sliding groove and used for resetting the clamping block, a through line hole (126) arranged at the top end of the sliding groove and a rope body (127) arranged in the through line hole in a penetrating manner; one end of the rope body is connected to the clamping block, and the other end of the rope body is connected to the baffle.

8. The blast-resistant people vent according to claim 1, wherein: the stone blocking structure (7) comprises a fourth rotating part (71) arranged in the circumferential direction of the wave collecting cover, a first stone blocking piece (72) arranged on the fourth rotating part, a plurality of vent grooves (73) arranged on the first stone blocking piece, a fixed block (74) arranged at the corner of the wave collecting cover, a rotating rod (75) with one end rotatably connected to the fixed block, a second stone blocking piece (76) sleeved on the rotating rod, a clamping groove (77) formed in the second stone blocking piece, and an eighth elastic part (78) arranged on the wave collecting cover and used for resetting the first stone blocking piece; and the two ends of the first stone blocking piece are respectively clamped into the corresponding clamping grooves.

9. The blast-resistant people vent according to claim 1, wherein: the bolt structure (5) comprises an eighth cavity (51) arranged on one side of the door body, a first gear (52) arranged in the eighth cavity, a second handle (53) used for driving the first gear, a second gear (54) arranged in the eighth cavity, a first helical gear (55) arranged on the second gear, a sleeve joint (56) arranged on the door body, an inserting rod (57) penetrating through the sleeve joint, a support (58) arranged on the door body, a second threaded rod (59) arranged on the support, a second helical gear (510) sleeved on the second threaded rod, a third threaded block (511) sleeved on the second threaded rod, and a connecting rod (512) with one end rotatably connected to the third threaded block; the first bevel gear is matched with the second bevel gear; the other end of the connecting rod is connected to the end of the insertion rod.