CN216277551U - Civil air defense door with shock-absorbing function - Google Patents

Abstract

The utility model discloses a civil air defense door with a damping function, which comprises a civil air defense door, a spare door arranged on the civil air defense door, a locking mechanism arranged on the spare door, a door lock mechanism used for opening and closing the locking mechanism, and a pair of spare keys arranged on the spare door. According to the utility model, through the arrangement of the spare door, when the civil air defense door is not opened due to impact deformation or other special conditions, the spare door can be opened to enter and exit, so that people are prevented from being locked by the civil air defense door, and an escape mode under emergency conditions is added, thereby greatly increasing the safe and practical functions of the civil air defense door; through the arrangement of the sliding block, the positioning groove, the first sliding column, the first disc, the first elastic piece, the first connecting rod, the fulcrum and the first positioning block, after a spare key in the spare door is inserted into the key hole, the spare key outside the spare door cannot be inserted into the key hole to open the spare door, and the safety is improved.

Description

Civil air defense door with shock-absorbing function

Technical Field

The utility model belongs to the technical field of civil air defense doors, and particularly relates to a civil air defense door with a damping function.

Background

The civil air defense door is a door of an entrance and an exit of a civil protection project. The civil air defense door is classified clearly, and various civil air defense devices such as common single-leaf and double-leaf protective airtight doors and airtight doors, movable door threshold single-leaf and double-leaf protective airtight doors and the like are provided. Ordinary single-leaf and double-leaf protective airtight doors and airtight doors are widely selected. The entrance and exit device has the characteristics of simple structure, reliable operation and convenient maintenance, and is suitable for the entrances and exits of various civil air defense projects. However, because it has a threshold, it is less adopted for the projects with frequent access of personnel and vehicles, such as underground shopping malls combined with peacetime and wartime, and the movable threshold door or the drop-down door with the same corresponding size and load grade is used instead, and the movable threshold single-leaf and double-leaf protective airtight doors and airtight doors are characterized by that at ordinary times, no threshold is installed, the ground is flat, it is convenient for personnel and vehicles to pass through, and when it is in battle, the threshold can be quickly installed so as to meet the requirements of protection and airtight functions, and quickly implement the conversion of peacetime and wartime functions. The door is suitable for the entrance and exit of civil air defense engineering of underground markets, hospitals, warehouses, underground parking garages and the like which are combined by peacetime and war. The existing civil air defense door has single function, and when the civil air defense door cannot be opened due to nonresistant factors, people outside the civil air defense door can only wait for rescue.

SUMMERY OF THE UTILITY MODEL

The utility model provides a civil air defense door with a damping function in order to overcome the defects of the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme: a civil air defense door with a shock absorption function comprises a civil air defense door, a spare door arranged on the civil air defense door, a locking mechanism arranged on the spare door and a door lock mechanism used for opening and closing the locking mechanism; the door lock mechanism comprises a lock block arranged on the spare door, a key hole arranged on the lock block, a sliding block arranged in the key hole, a first sliding column arranged on the lock block in a sliding manner, a first disc arranged on the first sliding column, a first elastic piece used for connecting the first disc and the sliding block, a first connecting rod arranged on the first disc, a first positioning block arranged on the first connecting rod, a movable device arranged on the first positioning block and an emergency unlocking device arranged on the lock block.

The movable device comprises a sliding ring groove arranged on the first positioning block, a first baffle arranged in the sliding ring groove, a support block arranged on the first baffle, a first sliding groove arranged on the first positioning block, a second sliding column arranged in the first sliding groove, a second disc arranged on the second sliding column, and a second elastic piece used for connecting the second disc and the first sliding groove.

The emergency unlocking device comprises a third open slot arranged on the locking block, a first rotating shaft rotatably arranged in the third open slot, a reinforcing block used for reinforcing the first rotating shaft, a rotating group arranged on the first rotating shaft, a second rotating shaft rotatably arranged in the third open slot, a first synchronous belt used for connecting the first rotating shaft and the second rotating shaft, and a connecting rope used for connecting the second rotating shaft and the abutting block.

And a pair of second baffles is arranged on the second rotating shaft.

The rotating group comprises a thread groove arranged on the first rotating shaft, a pressing block arranged on the first rotating shaft and a thread block arranged on the pressing block; the thread block is engaged with the thread groove.

The locking mechanism comprises a pair of racks arranged on the spare door, a second connecting rod arranged on the racks, a lock head arranged on the second connecting rod, and a pair of second positioning blocks used for limiting the racks; the spare door is characterized in that a plurality of gear hobbing meshed with the racks are arranged on the lock block, the racks are respectively arranged on two sides of the lock block, and an opening for the lock head to slide is formed in the spare door.

Compared with the prior art, the utility model has the following advantages: through the arrangement of the spare door, when the civil air defense door is not opened due to impact deformation or other special conditions, the spare door can be opened to enter and exit, people are prevented from being locked by the civil air defense door, and an escape mode under emergency conditions is added, so that the safety and practical functions of the civil air defense door are greatly increased; through the setting of sliding block, first slip post, first elastic component, head rod, fulcrum, first locating piece for spare key just can not open from the civil air defense door outside after inserting the key hole in the civil air defense door, avoids terrorist to open the people of civil air defense door inside from the civil air defense door outside and harms, has increased the security of the inside people of civil air defense door.

Drawings

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

Fig. 2 is a partial structural diagram of the first embodiment of the present invention.

Fig. 3 is a cross-sectional perspective view taken along D-D in fig. 2.

Fig. 4 is an enlarged schematic view of the structure at I in fig. 3.

Fig. 5 is a partial structural diagram of the second embodiment of the present invention.

Fig. 6 is a front view of fig. 5.

Fig. 7 is a cross-sectional perspective view taken along E-E in fig. 6.

Fig. 8 is an enlarged view of the structure at J in fig. 7.

Fig. 9 is an enlarged view of the structure at K in fig. 8.

Fig. 10 is a cross-sectional perspective view taken along F-F in fig. 6.

Fig. 11 is an enlarged view of the structure at L in fig. 10.

Fig. 12 is an enlarged view of the structure at M in fig. 11.

Fig. 13 is an enlarged schematic view of the structure at a in fig. 1.

Fig. 14 is a schematic view of a partial structure of the present invention.

Fig. 15 is a cross-sectional perspective view taken along a-a in fig. 14.

Fig. 16 is an enlarged view of the structure at B in fig. 15.

Fig. 17 is a partial schematic structural diagram of the present invention.

Fig. 18 is a partial cross-sectional perspective view taken along B-B in fig. 17.

Fig. 19 is an enlarged view of the structure at C in fig. 18.

Fig. 20 is an enlarged view of the structure at D in fig. 19.

Fig. 21 is an enlarged view of the structure at E in fig. 19.

Fig. 22 is an enlarged view of the structure at F in fig. 21.

Fig. 23 is a partial cross-sectional perspective view taken along line C-C of fig. 17.

Fig. 24 is an enlarged view of the structure at G in fig. 23.

Fig. 25 is an enlarged view of the structure at H in fig. 23.

Detailed Description

As shown in fig. 1 to 25, a civil air defense door with a shock absorption function comprises a civil air defense door 1, a spare door 63, a locking mechanism 64, a door lock mechanism 65, a spare key 66 and a civil air defense door leaf installation mechanism 102; the spare door 63 is connected to the civil air defense door 1 through a hinge; the locking mechanism 64 is arranged on the standby door 63; the door lock mechanism 65 is used for opening and closing the locking mechanism 64; the spare keys 66 are provided in a pair, and the spare keys 66 are hung inside and outside the spare door 63, respectively.

The door lock mechanism 65 comprises a lock block 67, a key hole 68, a sliding block 69, a positioning groove 70, a first sliding column 71, a first disc 72, a first elastic piece 73, a first connecting rod 74, a fulcrum 75, a first positioning block 76, a movable device 77 and an emergency unlocking device 78; the locking block 67 is rotatably arranged on the spare door 63 in a penetrating way; the key hole 68 is arranged on the locking block 67; the sliding block 69 is arranged in the key hole 68, and the sliding block 69 can slide in the key hole 68; the positioning groove 70 is arranged on the sliding block 69; the first sliding column 71 is slidably arranged on the locking block 67, and one end of the first sliding column 71 is arranged in a hemispherical shape; the first disc 72 is arranged on the first sliding column 71; the first elastic member 73 is used for connecting the first disc 72 and the locking block 67; the first connecting rod 74 is arranged on the first disc 72; the fulcrum 75 is arranged on the first connecting rod 74 in a penetrating manner, and two ends of the fulcrum 75 are fixedly connected with the locking block 67; the first positioning block 76 is arranged on the first connecting rod 74; the movable device 77 is arranged on the first positioning block 76; the emergency unlocking device 78 is provided on the lock block 67.

When the civil defense door 1 is not opened due to an irresistible factor, an operator firstly takes the spare key 66 to insert into the key hole 68, then the lock block 67 is rotated, the lock block 67 drives the locking mechanism 64 to open, the spare door 63 is opened along with the unlocking, when the spare door 63 is to be reversely locked, the operator takes the spare key 66 to insert into the key hole 68, the spare key 66 pushes against the sliding block 69 to move, meanwhile, the spare key 66 pushes against the first sliding column 71 to move upwards, the first sliding column 71 drives the first disc 72 to move, the first disc 72 drives the first positioning block 76 to move downwards through the first connecting rod 74 and the fulcrum 75, the first positioning block 76 is inserted into the positioning groove 70, and the sliding block 69 is fixed; through the arrangement of the spare door 63, when the civil air defense door 1 is not opened due to impact deformation or other special conditions, the spare door 63 can be opened to enter and exit, people are prevented from being locked by the civil air defense door 1, an escape mode under emergency conditions is added, and therefore the safe and practical functions of the civil air defense door 1 are greatly increased; through the arrangement of the sliding block 69, the positioning groove 70, the first sliding column 71, the first disc 72, the first elastic element 73, the first connecting rod 74, the fulcrum 75 and the first positioning block 76, after the spare key 66 in the spare door 63 is inserted into the key hole 68, the spare key 66 outside the spare door 63 cannot be inserted into the key hole 68 to open the spare door 63, and the safety is improved.

The movable device 77 comprises a sliding ring groove 79, a first baffle 80, a resisting block 81, a first sliding groove 82, a second sliding column 83, a second disc 84 and a second elastic piece 85; the sliding ring groove 79 is arranged on the positioning block; the first baffle 80 is arranged in the sliding ring groove 79, and the first baffle 80 can slide in the sliding ring groove 79; the abutting block 81 is arranged on the first baffle 80; the first sliding groove 82 is arranged on the positioning block; the second sliding column 83 is arranged in the first sliding groove 82, and the second sliding column 83 can slide in the first sliding groove 82; the second disc 84 is arranged on the second sliding column 83; the second elastic member 85 serves to connect the second disc 84 and the first sliding groove 82.

When the positioning block moves downwards, the positioning groove 70 does not move to the position below the positioning block for the first time, the abutting block 81 abuts against the sliding block 69, the positioning block moves downwards to drive the first baffle 80 to slide towards the sliding ring groove 79, the second cylinder slides towards the first sliding groove 82, after the positioning groove 70 moves to the position right below the positioning block and is aligned, the second elastic piece 85 drives the abutting block 81 to move downwards through the second disc 84 and the second sliding column 83, and the abutting block 81 drives the first baffle 80 to be inserted into the positioning groove 70; through the arrangement of the sliding ring groove 79, the first baffle 80, the abutting block 81, the first sliding groove 82 and the second sliding column 83, the first sliding column 71 moves upwards to drive the positioning block to move downwards, and when the positioning groove 70 is not aligned with the positioning block, a certain downward movement space is provided, so that the situation that the positioning block cannot be pushed against the sliding block 69 to cause the first sliding column 71 to move upwards and the spare key 66 is inserted into the key hole 68 and then clamped is avoided.

The emergency unlocking device 78 comprises a third slot 86, a first rotating shaft 87, a reinforcing block 88, a rotating group 89, a second rotating shaft 90, a first synchronous belt 91 and a connecting rope 92; the third slot 86 is arranged on the locking block 67; the first rotating shaft 87 is rotatably embedded in the third opening 86; the reinforcing block 88 is sleeved outside the first rotating shaft 87, and two ends of the reinforcing block 88 are fixedly connected with the third groove 86; the rotating group 89 is arranged on the first rotating shaft 87; the second rotating shaft 90 is rotatably embedded in the third opening 86; the first synchronization belt 91 is used to connect the first rotating shaft 87 and the second rotating shaft 90; the connecting rope 92 is used for connecting the second rotating shaft 90 and the abutting block 81.

When the spare key 66 is broken in the key hole 68 or under other conditions, an operator presses down the rotating set 89, the rotating set 89 drives the first rotating shaft 87 to rotate, the first rotating shaft 87 drives the second rotating shaft 90 to rotate through the first synchronous belt 91, the second rotating shaft 90 tightens the connecting rope 92, and the connecting rope 92 drives the abutting block 81 to move upwards; through the arrangement of the first rotating shaft 87, the rotating group 89, the second rotating shaft 90, the first synchronous belt 91 and the connecting rope 92, an operator can cancel the limit of the sliding block 69 by pressing the rotating group 89 under special conditions, so that people outside the civil defense door 1 can open the spare door 63 by using the spare key 66, and the safety is improved.

A pair of second baffles 93 are arranged on the second rotating shaft 90, and the connecting rope 92 is clamped between the second baffles 93; through the setting of second baffle 93, during the roll-in first synchronous belt 91 when avoiding connecting rope 92 to twine, guarantee stability.

The rotating group 89 comprises a thread groove 94, a pressing block 95 and a thread block 96; the thread groove 94 is provided on the first rotating shaft 87; the pressing block 95 is slidably sleeved outside the first rotating shaft 87; the screw block 96 is provided on the pressing block 95, and the screw block 96 is engaged with the screw groove 94.

When the spare key 66 is broken in the key hole 68 or otherwise, the operator presses the pressing block 95, the pressing block 95 drives the screw block 96 to move in the screw groove 94, and the first rotating shaft 87 rotates along with the screw block; through the arrangement of the thread groove 94, the pressing block 95 and the thread block 96, an operator can quickly realize the rotation of the first rotating shaft 87 by pressing the pressing block 95 machine, and the operation is convenient.

The locking mechanism 64 comprises a rack 97, a second connecting rod 98, a lock head 99 and a second positioning block 100; the number of the racks 97 is a pair, the racks 97 are arranged in the spare door 63, and the pair of racks 97 are arranged on two sides of the locking block 67; the second connecting rod 98 is arranged on the rack 97; the lock head 99 is arranged on the second connecting rod 98; the number of the second positioning blocks 100 is a pair, the second positioning blocks 100 are used for limiting the rack 97, and the second fixing blocks are fixedly connected with the spare door 63; a plurality of hobbing teeth 101 meshed with the racks 97 are arranged on the locking block 67; the spare door 63 is provided with an opening for the lock head 99 to slide.

When the standby door 63 is to be opened, the locking block 67 is rotated, the locking block 67 drives the rack 97 to slide between the pair of second limiting blocks through the hobbing 101, and the rack 97 drives the lock head 99 to slide through the second connecting rod 98; the spare door 63 is locked and unlocked by the rack 97, the second link 98, the lock 99, the hobbing 101, and the opening.

The civil air defense door leaf installation mechanism 102 comprises a civil air defense door 1, a transverse shock absorption mechanism 2, a longitudinal shock absorption mechanism 3, a hinge mechanism 4 and a reinforcing mechanism 5; the transverse shock absorption mechanism 2 is arranged on the civil air defense door 1; the longitudinal shock absorption mechanism 3 is arranged on the civil air defense door 1; the hinge mechanism 4 is arranged on the transverse shock absorption mechanism 2; the reinforcing mechanism 5 is used for connecting the civil air defense door 1 and the hinge mechanism 4.

When the civil air defense door 1 is to be closed, an operator rotates the spring pressure regulating device 7, the spring pressure regulating device 7 drives the meshing teeth 14 to rotate, the meshing teeth 14 drive the nuts 13 to rotate on the hydraulic cylinders 9, the nuts 13 drive the gaskets 11 to slide on the hydraulic cylinders 9, the gaskets 11 drive the first springs 12 to compress, then the civil air defense door 1 is closed, the hinge mechanisms 4 operate, the civil air defense door 1 collides with a door frame to generate vibration, the vibration is transmitted to the longitudinal cushioning mechanisms 3 and the hydraulic rods 8, the hydraulic rods 8 slide in the hydraulic cylinders 9 along with the vibration, meanwhile, the vibration of the connecting blocks 6 drives the first springs 12 to contract and extend, after the civil air defense door 1 is opened, the operator reversely starts the spring pressure regulating device 7 again, the pressure regulating device drives the meshing teeth 14 to reversely rotate, the meshing teeth 14 drive the nuts 13 to reversely rotate, and the first springs 12 extend to drive the gaskets 11 to reversely slide; through the arrangement of the hydraulic cylinder 9, the hydraulic rod 8 and the first spring 12, the vibration generated by the civil air defense door 1 is buffered and filtered, and the phenomenon that the hinge mechanism 4 is loosened due to the fact that the vibration is directly transmitted to the hinge mechanism 4 is avoided, so that the civil air defense door 1 is not tightly closed, and the sealing state is poor; through the arrangement of the spring pressure regulating device 7, the pressure of the first spring 12 is regulated, so that the first spring 12 is in a relaxed state when the civil air defense door 1 is in a normally open state and in a tightened state when the civil air defense door 1 is closed, the phenomenon that the first spring 12 loses elasticity due to long-time tightening under the normally open state of the civil air defense door 1 is avoided, the first spring 12 can be normally used when the first spring 12 is required to be used is ensured, the service life of the first spring 12 is prolonged, the replacement frequency of the first spring 12 is reduced, and the manual maintenance cost is reduced; through the setting of packing ring 11 for nut 13 can not drive first spring 12 when rotating and rotates, avoids first spring 12 to receive two rotations of rotation of nut 13, lets nut 13 can have longer displacement stroke to drive first spring 12 compression and extension.

The spring pressure regulating device 7 comprises a first cylinder 15, a movable groove 16, a limiting hole 17, a second cylinder 18, a limiting strip 19, a gear 20, a first baffle 21, a first rotating shaft 22, a second synchronous belt 23, a first bevel gear 24, a second rotating shaft 25, a second bevel gear 26 and a handle 27; the first cylinder 15 is arranged on the connecting block 6, and the first cylinder 15 extends into the civil air defense door 1; the movable groove 16 is arranged in the first cylinder 15; the number of the limiting holes 17 is multiple, the number of the limiting holes 17 can be arranged according to specific conditions, and the limiting holes 17 are uniformly arranged on the movable groove 16 at intervals; the second cylinder 18 is arranged in the movable groove 16, and the second cylinder 18 can slide in the movable groove 16; the number of the limiting strips 19 is the same as that of the limiting holes 17, the limiting strips 19 correspond to one another, and the limiting strips 19 are arranged on the second cylinder 18; the gear 20 is arranged on the second cylinder 18, and the gear 20 is meshed with the multi-pin meshing teeth 14; the number of the first blocking pieces 21 is a pair, the first blocking pieces 21 are respectively arranged at two sides of the gear 20, and the pair of first blocking pieces 21 clamps the nut 13; the first rotating shaft 22 is rotatably embedded in the civil air defense door 1; the second synchronous belt 23 is sleeved outside the first rotating shaft 22 and the first cylinder 15; the first bevel gear 24 is arranged on the first rotating shaft 22; the second rotating shaft 25 is rotatably arranged on the civil air defense door 1 in a penetrating way; the second bevel gear 26 is arranged on the second rotating shaft 25, and the second bevel gear 26 is meshed with the first bevel gear 24; the handle 27 is provided on the second rotating shaft 25.

When the civil air defense door 1 is to be closed, an operator rotates the handle 27, the handle 27 drives the second rotating shaft 25 to rotate, the second rotating shaft 25 drives the second bevel gear 2620 to rotate, the second bevel gear 2620 drives the first bevel gear 2420 to rotate, the first bevel gear 2420 drives the first rotating shaft 22 to rotate, the first rotating shaft 22 enters the second synchronous belt 23 to drive the first cylinder 15 to rotate, the first cylinder 15 drives the second cylinder 18 to rotate, the second cylinder 18 drives the gear 20 to rotate, and the gear 20 drives the first baffle 21 to rotate; through the arrangement of the first blocking piece 21, the movable groove 16 and the second cylinder 18, when the gear 20 drives the nut 13 to rotate and slide through the meshing teeth 14, the gear 20 can be meshed with the meshing teeth 14 without dislocation; through the arrangement of the limiting hole 17 and the limiting strip 19, the first cylinder 15 can drive the second cylinder 18 to rotate, and the second cylinder 18 can slide in the movable groove 16.

The longitudinal cushioning mechanism 3 comprises a first slot 28, a movable hole 29, a third cylinder 30, a locking device 31, a resisting plate 32, a second spring 33, a second slot 34 and a fixing device 35; the number of the first open grooves 28 is multiple, every two of the first open grooves 28 form a group, and the group of the first open grooves are symmetrically arranged at two sides of the civil air defense door 1 relative to the first rotating shaft 22; the number of the movable holes 29 is multiple, the number of the movable holes can be arranged according to specific conditions, and the movable holes 29 are uniformly arranged at the upper side and the lower side of the first open groove 28 at intervals; the third cylinder 30 is arranged in the movable groove 16, and the third cylinder 30 can slide in the movable groove 16; the locking device 31 is arranged on the third cylinder 30; the butt plate 32 is used for connecting a plurality of third cylinders 30; the number of the second springs 33 is equal to that of the third cylinders 30, and the second springs 33 are in one-to-one correspondence, the second springs 33 are used for connecting the abutting plate 32 and the first slots 28, and the second springs 33 are sleeved outside the third cylinders 30; the number of the second slots 34 is multiple, and the number of the second slots 34 can be arranged according to specific situations, and the second slots 34 are uniformly arranged on the abutting plate 32 at intervals; the fixing means 35 is arranged in the second slot 34.

When the civil air defense door 1 is installed, the hinge mechanism 4 and the reinforcing mechanism 5 are fixed, then the first open groove 28 is inserted to the reinforcing mechanism 5, after the reinforcing mechanism 5 is inserted into the first open groove 28, the reinforcing mechanism 5 touches the fixing device 35, the fixing device 35 is automatically started to fix the civil air defense door 1 and the reinforcing mechanism 5, when the civil air defense door 1 vibrates, the civil air defense door 1 presses the second spring 33 to compress and extend repeatedly, and the third column 30 slides up and down repeatedly in the movable groove 16; through the arrangement of the movable groove 16, the third cylinder 30, the abutting plate 32 and the second spring 33, the vibration of the reinforcing mechanism 5 is buffered and filtered, the vibration of the civil air defense door 1 is transmitted to the hinge mechanism 4 as little as possible, and the looseness caused by the overlarge vibration of the hinge mechanism 4 is avoided, so that the civil air defense door 1 is not closed tightly, and the sealing state is poor.

The locking device 31 comprises a through hole 36, a fourth cylinder 37, a buckle assembly 38, a first connecting rod 39, a first limiting block 40, a first sliding block 41, a fifth cylinder 42 and a second connecting rod 43; the through hole 36 is arranged on the third cylinder 30; the fourth cylinder 37 is arranged in the through hole 36, and the fourth cylinder 37 can slide in the through hole 36; the buckle assembly 38 is arranged on the fourth cylinder 37; the first connecting rod 39 is used for connecting a plurality of fourth cylinders 37; the number of the first limiting blocks 40 is a pair, and the first limiting blocks 40 are arranged in the second slots 34; the first sliding block 41 is arranged between the pair of first limiting blocks 40, the first sliding block 41 is connected between the pair of first limiting blocks 40 in a sliding manner, and the first sliding block 41 is fixedly connected with the first connecting rod 39; the fifth cylinder 42 is arranged in the second slot 34; the second link 43 is rotatably disposed on the fifth cylinder 42.

When the reinforcing mechanism 5 is inserted into the first slot 28, the reinforcing mechanism 5 abuts against the second connecting rod 43 to rotate, the second connecting rod 43 abuts against the first sliding block 41 to move, the first sliding block 41 drives the first connecting rod 39 to move, the first connecting rod 39 drives the fourth cylinder 37 to move, and the fourth cylinder 37 drives the buckle 55 component 38 to automatically dislocate; through the arrangement of the second connecting rod 43, the first sliding block 41, the first connecting rod 39, the fifth cylinder 42 and the fastener 55, the abutting plate 32 is in a fixed state before the reinforcing device is inserted into the first slot 28, so that the reinforcing device can be conveniently inserted in an aligned manner, and after the reinforcing device is inserted, the abutting plate 32 is in a movable state, so that the third cylinder 30, the second spring 33, the abutting plate 32 and the like can conveniently absorb shock to the reinforcing mechanism 5.

The fixing device 35 comprises a second limiting block 44, a bolt 45, a second baffle 46, a third connecting rod 47 and a lifting plate 48; the number of the second limit blocks 44 is a pair, and the second limit blocks 44 are arranged in the second slots 34; the bolt 45 is arranged between the pair of second limiting blocks 44, the bolt 45 can slide between the pair of second limiting blocks 44, and one end of the bolt 45 is arranged in an inclined plane; the second blocking piece 46 is arranged on the bolt 45; the third connecting rod 47 is arranged on the bolt 45; the lifting plate 48 is arranged on the third connecting rod 47; the civil air defense door 1 is provided with an opening 49 through which the third connecting rod 47 can slide up and down.

When the reinforcing mechanism 5 is inserted into the first slot 28, the reinforcing mechanism 5 abuts against the plug pin 45 to drive the plug pin 45 to slide, after the reinforcing mechanism 5 is positioned, the plug pin 45 fixes the reinforcing mechanism 5, when the reinforcing device is to be pulled out from the second slot 34, an operator slides the lifting plate 48, the lifting plate 48 drives the third connecting rod 47 to move, and the third connecting rod 47 drives the plug pin 45 to be dislocated with the reinforcing device; one end of the bolt 45 is arranged in an inclined plane, so that the reinforcing mechanism 5 can smoothly prop against the bolt 45 after being inserted into the first open slot 28 and the bolt 45 can move, and the fixing failure caused by the clamping and the immobility of the bolt 45 after the reinforcing mechanism 5 and the bolt 45 prop against the bolt 45 is avoided; through the setting of second separation blade 46, carry on spacingly to bolt 45, avoid bolt 45 to take off a position from a pile of second stopper 44 between.

The buckle assembly 38 comprises a block 50, a stop block 51, a sixth cylinder 52, a shaft sleeve 53, a torsion spring 54 and a buckle 55; the block 50 is arranged on the fourth cylinder 37; the number of the stoppers 51 is a pair, and the stoppers 51 are symmetrically arranged on two sides of the block 50 relative to the central axis of the fourth cylinder 37; the number of the sixth cylinders 52 is a pair, and the sixth cylinders 52 correspond to the stoppers 51 one by one, and the sixth cylinders 52 are arranged on the block 50; the shaft sleeve 53 is rotatably arranged on the block 50, and the shaft sleeve 53 is sleeved outside the fourth cylinder 37; the torsion spring 54 is used for connecting the shaft sleeve 53 and the sixth cylinder 52, and the torsion spring 54 is sleeved outside the sixth cylinder 52; the buckle 55 is arranged on the shaft sleeve 53.

When the reinforcing mechanism 5 is inserted into the first slot 28, the fourth cylinder 37 drives the square block 50 to move, the torsion spring 54 drives the shaft sleeve 53 to rotate, the shaft sleeve 53 drives the buckle 55 to rotate, when the reinforcing mechanism 5 is drawn out of the first slot 28, the fourth cylinder 37 drives the square block 50 to move reversely, the buckle 55 rotates to abut against the stop block 51, and meanwhile, the buckle 55 abuts against the third cylinder 30; through the setting of torsional spring 54, buckle 55, axle sleeve 53 for when reinforcing mechanism 5 inserts first fluting 28, buckle 55 can cancel automatically spacing to third cylinder 30, the slip stroke of extension third cylinder 30, thereby increase the bradyseism effect, and when reinforcing mechanism 5 took out first fluting 28, buckle 55 can carry on spacingly again to third cylinder 30 automatically, prevents that third cylinder 30 and activity hole 29 from dislocating.

The reinforcing mechanism 5 comprises a first reinforcing plate 56, a bolt hole 57, a sliding groove 58 and a second reinforcing plate 59; the first reinforcing plate 56 is arranged in the first slot 28, the first reinforcing plate 56 is inserted between the pair of abutting plates 32, and the first reinforcing plate 56 abuts against the pair of abutting plates 32; the number of the bolt holes 57 is equal to that of the bolts 45, and the bolt holes 57 correspond to the bolts 45 one by one, the bolt holes 57 are formed in the first reinforcing plate 56, and the bolts 45 can be inserted into the bolt holes 57; the sliding chute 58 is arranged on the first fixing plate; the second fixing plate is disposed in the sliding slot 58, and the second fixing plate can slide in the sliding slot 58.

When the first reinforcing plate 56 is inserted into the first slot 28, the plug pin 45 is inserted into the plug hole, and when the civil air defense door 1 vibrates, the second reinforcing plate 59 slides in the sliding groove 58; through the arrangement of the sliding grooves 58, the sliding space is given to the second reinforcing plate 59, and the transverse cushioning mechanism 2 is prevented from losing the cushioning effect due to the fixation of the first reinforcing plate 56 and the second reinforcing plate 59.

The hinge mechanism 4 comprises a first hinge 60, a connecting shaft 61 and a second hinge 62; the first hinge 60 is arranged on the hydraulic cylinder 9, and the first hinge 60 is fixedly connected with the second reinforcing plate 59; the connecting shaft 61 is rotatably arranged on the first hinge 60 in a penetrating way; the second hinge 62 is provided on the connecting shaft 61.

When the civil air defense door 1 is opened or closed, the civil air defense door 1 drives the first hinge 60 to rotate; the civil air defense door 1 is rotatably opened and closed through the arrangement of the first hinge 60, the connecting shaft 61 and the second hinge 62.

The specific implementation process is as follows: when the civil air defense door 1 is to be closed, an operator rotates the handle 27, the handle 27 drives the second rotating shaft 25 to rotate, the second rotating shaft 25 drives the second bevel gear 26 to rotate, the second bevel gear 26 drives the first bevel gear 2424 to rotate, the first bevel gear 2424 drives the first rotating shaft 22 to rotate, the first rotating shaft 22 drives the second synchronous belt 23 to drive the first cylinder 15 to rotate, the first cylinder 15 drives the second cylinder 18 to rotate, the second cylinder 18 drives the gear 20 to rotate, the gear 20 drives the first baffle 21 to rotate, the gear 20 simultaneously drives the meshing teeth 14 to rotate, the meshing teeth 14 drive the nut 13 to rotate on the hydraulic cylinder 9, the nut 13 drives the gasket 11 to slide on the hydraulic cylinder 9, the gasket 11 drives the first spring 12 to compress, then the civil air defense door 1 is closed, the civil air defense door 1 drives the first hinge 60 to rotate, the civil air defense door 1 vibrates when colliding with a door frame to generate vibration or when an explosion residual wave generates vibration, the civil air defense door 1 vibrates to drive the hydraulic rod 8 to slide on the hydraulic cylinder 9, the civil air defense door 1 vibrates to drive the first spring 12 to contract and extend, the civil air defense door 1 vibrates to press the second spring 33 to repeatedly compress and extend, the third cylinder 30 repeatedly slides up and down in the movable groove 16, after the civil air defense door 1 is opened, an operator reversely rotates the handle 27, the handle 27 drives the second cylinder 18 to reversely rotate, the second rotating shaft 25 drives the second bevel gear 26 to reversely rotate, the second bevel gear 26 drives the first bevel gear 2424 to reversely rotate, the first bevel gear 2424 drives the first rotating shaft 22 to reversely rotate, the first rotating shaft 22 drives the first cylinder 15 to reversely rotate through the second synchronous belt 23, the first cylinder 15 drives the second cylinder 18 to reversely rotate, the second cylinder 18 drives the gear 20 to reversely rotate, the gear 20 drives the meshing teeth 14 to reversely rotate, the meshing teeth 14 drives the nut 13 to reversely rotate, the first spring 12 extends to drive the gasket 11 to reversely slide, when the civil air defense door 1 is installed, the hinge mechanism 4 and the reinforcing mechanism 5 are firstly fixed, then, the first slot 28 is aligned with the first reinforcing plate 56 to insert, the first reinforcing plate 56 is inserted to touch against the bolt 45 to drive the bolt 45 to slide, meanwhile, the first reinforcing plate 56 abuts against the second connecting rod 43 to rotate, the second connecting rod 43 abuts against the first sliding block 41 to move, the first sliding block 41 drives the first connecting rod 39 to move, the first connecting rod 39 drives the fourth cylinder 37 to move, the fourth cylinder 37 drives the square block 50 to move, the torsion spring 54 drives the shaft sleeve 53 to rotate, the shaft sleeve 53 drives the buckle 55 to rotate, the limit of the third cylinder 30 is cancelled, after the reinforcing mechanism 5 is positioned, the bolt 45 is inserted into the slot, when the civil air defense door 1 is to be disassembled, the first reinforcing plate 56 is pulled out of the first slot 28, the fourth cylinder 37 drives the square block 50 to move reversely, the buckle 55 rotates and abuts against the stop block 51, and the buckle 55 abuts against the third cylinder 30 at the same time, so that the third cylinder 30 is limited.

When the civil air defense door 1 is not opened due to an irresistible factor, an operator firstly takes the spare key 66 to be inserted into the key hole 68, then the locking block 67 is rotated, the locking block 67 drives the locking mechanism 64 to be opened, the spare door 63 is opened along with the unlocking, when the spare door 63 is to be reversely locked, the operator takes the spare key 66 to be inserted into the key hole 68, the spare key 66 pushes against the sliding block 69 to move, meanwhile, the spare key 66 pushes against the first sliding column 71 to move upwards, the first sliding column 71 drives the first disc 72 to move, the first disc 72 drives the first positioning block 76 to move downwards through the first connecting rod 74 and the fulcrum 75, the first positioning block 76 is inserted into the sliding block 70, the sliding block 69 is locked, when the positioning block moves downwards, the positioning block 70 does not move downwards for the first time, the abutting block 81 and the sliding block 69 abut against, the positioning block moves downwards to drive the first baffle 80 to slide towards the sliding ring groove 79, the second cylinder slides towards the first sliding groove 82, after the positioning slot 70 is aligned with the right below the positioning block, the second elastic member 85 drives the abutting block 81 to move downwards through the second disc 84 and the second sliding column 83, the abutting block 81 drives the first baffle 80 to be inserted into the positioning slot 70, when the spare key 66 is broken in the keyhole 68 or under other conditions, the operator presses the pressing block 95, the pressing block 95 drives the threaded block 96 to move in the threaded slot 94, the first rotating shaft 87 rotates along with the first rotating shaft 87, the first rotating shaft 87 drives the second rotating shaft 90 to rotate through the first synchronous belt 91, the second rotating shaft 90 tightens the connecting rope 92, the connecting rope 92 drives the abutting block 81 to move upwards, the sliding block 69 is not limited, and the spare key 66 for the person outside the door can open the spare door 63.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model 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 utility model 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 (6)

1. A civil air defense door with a shock absorption function comprises a civil air defense door (1), a spare door (63) arranged on the civil air defense door (1), a locking mechanism (64) arranged on the spare door (63), a door lock mechanism (65) used for opening and closing the locking mechanism (64), and a pair of spare keys (66) arranged on the spare door (63); the method is characterized in that: the door lock mechanism (65) comprises a lock block (67) arranged on the spare door (63), a key hole (68) arranged on the lock block (67), a sliding block (69) arranged in the key hole (68), a positioning groove (70) arranged on the sliding block (69), a first sliding column (71) arranged on the lock block (67) in a sliding mode, a first disc (72) arranged on the first sliding column (71), a first elastic piece (73) used for connecting the first disc (72) and the sliding block (69), a first connecting rod (74) arranged on the first disc (72), a fulcrum (75) arranged on the first connecting rod (74), a first positioning block (76) arranged on the first connecting rod (74), a movable device (77) arranged on the first positioning block (76), and an emergency unlocking device (78) arranged on the lock block (67).

2. The civil air defense door with the shock absorption function as claimed in claim 1, wherein: the movable device (77) comprises a sliding ring groove (79) arranged on the first positioning block (76), a first baffle plate (80) arranged in the sliding ring groove (79), a support block (81) arranged on the first baffle plate (80), a first sliding groove (82) arranged on the first positioning block (76), a second sliding column (83) arranged in the first sliding groove (82), a second disc (84) arranged on the second sliding column (83), and a second elastic piece (85) used for connecting the second disc (84) and the first sliding groove (82).

3. The civil air defense door with the shock absorption function as claimed in claim 1, wherein: the emergency unlocking device (78) comprises a third open slot (86) arranged on the locking block (67), a first rotating shaft (87) rotatably arranged in the third open slot (86), a reinforcing block (88) used for reinforcing the first rotating shaft (87), a rotating group (89) arranged on the first rotating shaft (87), a second rotating shaft (90) rotatably arranged in the third open slot (86), a first synchronous belt (91) used for connecting the first rotating shaft (87) and the second rotating shaft (90), and a connecting rope (92) used for connecting the second rotating shaft (90) and the abutting block (81).

4. The civil air defense door with the shock absorption function of claim 3, wherein: and a pair of second baffles (93) is arranged on the second rotating shaft (90).

5. The civil air defense door with the shock absorption function of claim 3, wherein: the rotating group (89) comprises a thread groove (94) arranged on the first rotating shaft (87), a pressing block (95) arranged on the first rotating shaft (87), and a thread block (96) arranged on the pressing block (95); the thread block (96) is engaged with the thread groove (94).

6. The civil air defense door with the shock absorption function as claimed in claim 1, wherein: the locking mechanism (64) comprises a pair of racks (97) arranged on the spare door (63), a second connecting rod (98) arranged on the racks (97), a lock head (99) arranged on the second connecting rod (98), and a pair of second positioning blocks (100) used for limiting the racks (97); a plurality of hobbing (101) meshed with the racks (97) are arranged on the locking block (67), the racks (97) are respectively arranged on two sides of the locking block (67), and an opening for sliding the lock head (99) is formed in the spare door (63).

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