CN113982436B - Reinforced concrete structure civil air defense door - Google Patents
Reinforced concrete structure civil air defense door Download PDFInfo
- Publication number
- CN113982436B CN113982436B CN202111225968.0A CN202111225968A CN113982436B CN 113982436 B CN113982436 B CN 113982436B CN 202111225968 A CN202111225968 A CN 202111225968A CN 113982436 B CN113982436 B CN 113982436B
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- door
- air defense
- plate
- reinforced concrete
- civil air
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- 230000007123 defense Effects 0.000 title claims abstract description 51
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 33
- 230000001681 protective effect Effects 0.000 claims abstract description 60
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000000149 penetrating effect Effects 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 239000004567 concrete Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 2
- 210000001503 joint Anatomy 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 27
- 230000008569 process Effects 0.000 description 22
- 230000000694 effects Effects 0.000 description 12
- 241000196324 Embryophyta Species 0.000 description 9
- 238000005381 potential energy Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F7/00—Accessories for wings not provided for in other groups of this subclass
- E05F7/06—Devices for taking the weight of the wing, arranged away from the hinge axis
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/70—Sills; Thresholds
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
- E06B3/36—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a single vertical axis of rotation at one side of the opening, or swinging through the opening
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
- E06B7/22—Sealing arrangements on wings or parts co-operating with the wings by means of elastic edgings, e.g. elastic rubber tubes; by means of resilient edgings, e.g. felt or plush strips, resilient metal strips
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
- Special Wing (AREA)
Abstract
The application relates to a reinforced concrete structure civil air defense door, which mainly relates to the technical field of civil air defense doors, and comprises a door frame fixedly arranged on a wall body, a protective door body rotationally connected with the door frame, a locking mechanism arranged on the protective door body, a steering power assisting mechanism penetrating through the protective door body and a split type door threshold arranged on the door frame; the steering power assisting mechanism comprises a spring, a limiting rod, a bearing wheel and a positioning pin, wherein one end of the spring is in butt joint with the protective door body, the limiting rod is arranged in the protective door body in a penetrating mode and is fixedly connected with the other end of the spring, and the bearing wheel is arranged at the bottom end of the limiting rod. The application has the characteristics of light weight and easy opening and closing.
Description
Technical Field
The application relates to the technical field of civil air defense doors, in particular to a reinforced concrete structure civil air defense door.
Background
The civil air defense door is a protective door with functions of shock resistance, explosion resistance, fire resistance and the like, which is arranged at the entrance and the exit of the civil air defense engineering. The civil air defense door plays a decisive role in the overall protective performance of the civil protection engineering, and in order to meet the protection requirements of higher and higher levels, the civil air defense door is made of reinforced concrete and other materials so as to increase the protective performance.
Because the civil air defense door made of heavy materials such as reinforced concrete, steel plates and the like has larger dead weight, the opening and closing process is generally time-consuming and labor-consuming. When an emergency occurs, the security door is difficult to meet the protection requirement of quick closing.
Aiming at the related technology, the inventor finds that the existing reinforced concrete civil air defense door has the defect of time and labor waste in the opening and closing process.
Disclosure of Invention
The application provides a reinforced concrete structure civil air defense door, which aims to enable the opening and closing process of the reinforced concrete civil air defense door to be quicker and more labor-saving.
The application provides a reinforced concrete structure civil air defense door which adopts the following technical scheme:
a reinforced concrete structure civil air defense door comprises a door frame fixedly arranged on a wall body, a protective door body rotationally connected with the door frame, a locking mechanism arranged on the protective door body, a steering power assisting mechanism penetrating through the protective door body and a split type threshold arranged on the door frame; the steering power assisting mechanism comprises a spring, a limiting rod, a bearing wheel and a positioning pin, wherein one end of the spring is in butt joint with the protective door body, the limiting rod is arranged in the protective door body in a penetrating mode and is fixedly connected with the other end of the spring, and the bearing wheel is arranged at the bottom end of the limiting rod.
Through adopting above-mentioned technical scheme, the guard gate body plays sealed effect with the protection, establish the locking mechanism on the guard gate body can be fixed and locking guard gate body and door frame, further strengthen the guard effect that guard gate body resisted the impact, split type threshold can be installed on the door frame again when having the user demand, further increase guard gate's barrier property, avoided the influence that the convenience of going in and out to the personnel caused under the unnecessary circumstances again, gag lever post in the steering assist mechanism can slide downwards under the spring force and promote the bearing wheel, make bearing wheel and ground contact, the bearing wheel has played the effect of support to guard gate body, the friction of guard gate body and ground and door frame junction has been reduced, the resistance that the people's air defense door opened and close the in-process received has been reduced, make reinforced concrete people's air defense door's opening and close the process more swiftly laborsaving.
Optionally, the protection door body includes a plurality of connecting pieces that rotate with the door frame to be connected, with connecting piece fixed connection's door plant, a plurality of reinforcing bar net of wearing to establish in the door plant and establish the concrete layer of cladding in the reinforcing bar net outside in the door plant.
Through adopting above-mentioned technical scheme, the connecting piece of rotating with the guard gate body and being connected can make the guard gate body rotate around the door frame edge, makes the guard gate body realize opening and closing's function, and the mechanical strength of guard gate body can effectively be increased to the integrated configuration of this internal reinforcing bar net of guard gate and concrete layer, has promoted the shock resistance of guard gate body, and the door plant has played cladding support and the effect of design to reinforcing bar net and concrete layer.
Optionally, the connecting piece comprises a connecting plate with one end connected with the door plate and gaskets arranged at two sides of the connecting plate; the gasket is provided with a plurality of round through holes, and balls are arranged in the through holes.
Through adopting above-mentioned technical scheme, the connecting plate has played the effect of connecting the door plant of guard gate body, establishes the ball in the circular through-hole that the gasket of two sides was seted up about the connecting plate, and the ball can reduce the frictional force between gasket and the door frame when the guard gate body was rotatory, has further reduced the resistance that the guard gate body opened and close the in-process received, makes the opening and close process of reinforced concrete people's air defense door more swiftly laborsaving.
Optionally, a plurality of rib plates are arranged in the door plate, and a plurality of through holes for penetrating the reinforcing mesh are formed in the rib plates.
Through adopting above-mentioned technical scheme, establish the gusset inboard at the door plant and can have the anti deformation mechanical strength who improves the door plant, further promoted the barrier propterty of guard gate body, the through-hole that is used for wearing to establish the reinforcing bar net of seting up on the gusset makes gusset and reinforcing bar net can assemble into a firm whole for the reinforcing bar net keeps in original position at concrete layer pouring in-process, has promoted concrete layer's shaping effect, has increased concrete layer and reinforcing bar net composite construction's mechanical strength, has promoted the barrier propterty of guard gate body.
Optionally, one end of the door frame close to the ground is provided with a plurality of fixed plates, a chute is arranged on the fixed plate, and the split type threshold is in sliding connection with the fixed plate.
By adopting the technical scheme, the structure design of the fixing plate which is arranged at one end of the door frame close to the ground and the split type threshold are in sliding connection, so that the process of disassembling and assembling the split type threshold is simplified, the time required by disassembling and assembling the split type threshold is reduced, and the convenience and safety in use of the door frame are improved.
Optionally, the locking mechanism comprises a plurality of limiting cylinders fixed on the protective door body, a lock rod penetrating through the limiting cylinders, a traction plate hinged with one end of the lock rod far away from the door frame, a screw rod hinged with one end of the traction plate far away from the lock rod, a bevel gear nut sleeved on the screw rod, a shell sleeved outside the screw rod and a hand wheel penetrating through the shell; the traction plate is hinged with the protective door body; the rotating shaft of the hand wheel is meshed with the bevel gear nut.
Through adopting above-mentioned technical scheme, the user can rotate the hand wheel and drive the shaft rotation to drive the bevel gear nut rotation that meshes with the hand wheel shaft mutually, make the lead screw take place to slide to one side, the lead screw drives the pulling plate and takes place to rotate along one side, the locking lever takes place to slide in spacing section of thick bamboo under the pulling plate pivoted effect, and finally realize opening or locking guard gate body's effect, the casing has played the effect of support and spacing to bevel gear nut, lead screw and hand wheel, bevel gear nut and lead screw complex structural design is simple reliable, difficult emergence mechanical failure, the hand wheel structure makes the opening and close process of reinforced concrete guard gate more laborsaving.
Optionally, the door frame is installed a plurality of lock barrels that cooperate with the locking lever in the homonymy with locking mechanism, the slope is equipped with the deflector in the lock barrel.
By adopting the technical scheme, the guide plate obliquely arranged in the lock cylinder can play a role in guiding the sliding of the lock rod in the process of inserting the lock rod into the lock cylinder, and thrust is generated on the lock rod, and then the thrust is acted on the protective door body through the lock rod, so that the protective door body is tightly combined with the door frame in a locking state, the sealing performance of the protective door is improved, and the protective performance of the protective door is further improved.
Optionally, the traction plate comprises a traction part hinged with the lock rod, a connecting part hinged with the screw rod and a buckle for connecting the traction part and the connecting part.
Through adopting above-mentioned technical scheme, split type design that traction plate two parts formed through the buckle connection can facilitate the user to split into two parts with the traction plate, and when locking mechanism received extreme conditions such as earthquake or explosion impact to take place the dead mechanical failure of card, the user can promote the buckle and split with the traction plate, makes traction plate's traction part and connecting portion break away from for the locking lever can directly take out from spacing hole, makes the user also can open the guard gate body when locking mechanism takes place mechanical failure.
Optionally, a sealing rubber strip is arranged at the bottom edge of the split type threshold.
By adopting the technical scheme, the sealing rubber strip arranged at the bottom edge of the split type doorsill can increase the contact tightness between the split type doorsill and the doorframe, and improves the air tightness of the door frame, so that the protective performance of the door frame is improved.
Optionally, a buffer door closer is arranged at the top end of the door frame, and the other end of the buffer door closer is connected with the protective door body.
Through adopting above-mentioned technical scheme, establish the buffering door closer on door frame top can store kinetic energy and convert into the potential energy of the interior hydraulic spring of buffering door closer in the guard gate opening process to with the kinetic energy of guard gate body with potential energy conversion in the in-process that the guard gate body closed, make the opening process of reinforced concrete people's air defense door more swiftly laborsaving.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the protective door body plays a role in sealing and protecting, the locking mechanism arranged on the protective door body can fix and lock the protective door body and the door frame, the protective effect of the protective door body against impact is further enhanced, the split type doorsill can be mounted on the door frame when the use requirement exists, the protective performance of the protective door is further improved, the influence on the convenience of personnel in and out is avoided, the limiting rod in the steering power assisting mechanism can slide downwards under the action of spring elastic force and push the bearing wheel, the bearing wheel is in contact with the ground, the bearing wheel plays a supporting role on the protective door body, the friction between the protective door body and the ground and the joint of the door frame is reduced, the resistance born in the opening and closing process of the civil air defense door is reduced, and the opening and closing process of the reinforced concrete civil air defense door is faster and more labor-saving;
2. the connecting plate plays a role in connecting the door plates of the protective door body, and the round through holes formed in the gaskets on the upper surface and the lower surface of the connecting plate are provided with the balls, so that the friction force between the gaskets and the door frame can be reduced when the protective door body rotates, the resistance applied to the protective door body in the opening and closing process is further reduced, and the opening and closing process of the reinforced concrete civil air defense door is faster and more labor-saving;
3. the buffer door closer arranged at the top end of the door frame can store kinetic energy in the opening process of the protective door and convert the kinetic energy into the potential energy of the hydraulic spring in the buffer door closer, and converts the potential energy into the kinetic energy of the protective door body in the closing process of the protective door body, so that the opening process of the reinforced concrete civil air defense door is faster and more labor-saving.
Drawings
Fig. 1 is a civil air defense diagram of a reinforced concrete structure according to an embodiment of the present application.
Fig. 2 is a schematic cross-sectional view of a protective door body according to an embodiment of the application.
Fig. 3 is a schematic structural view of a connector according to an embodiment of the present application.
Fig. 4 is an a-direction view of fig. 1.
Fig. 5 is a schematic view of the structure of the lock cylinder according to the embodiment of the present application.
Fig. 6 is a schematic structural view of a locking mechanism according to an embodiment of the present application.
Fig. 7 is a B-direction view of fig. 6.
Reference numerals illustrate: 1. a door frame; 11. a fixing plate; 12. a lock cylinder; 121. a guide plate; 2. a protective door body; 21. a connecting piece; 22. a door panel; 23. a reinforcing mesh; 24. a concrete layer; 211. a connecting plate; 212. a gasket; 213. a ball; 221. rib plates; 3. a locking mechanism; 31. a limiting cylinder; 32. a lock lever; 33. a traction plate; 34. a screw rod; 35. bevel gear nuts; 36. a housing; 37. a hand wheel; 331. a traction section; 332. a connection part; 333. a buckle; 4. a steering assist mechanism; 41. a spring; 42. a limit rod; 43. a bearing wheel; 44. a positioning pin; 5. a split threshold; 51. a sealing rubber strip; 6. and buffering the door closer.
Detailed Description
The application is described in further detail below with reference to fig. 1-7.
The civil air defense door is one of key structures affecting the overall quality of the civil air defense project and the protection effect of the civil air defense project. Higher and higher levels of safety standards place higher demands on the mechanical properties of civil air defense doors. Accordingly, the civil air defense door starts to adopt heavy materials such as reinforced concrete mixed structures to improve mechanical properties. The self weight of the civil air defense door is large, the friction force and other resistance force suffered in the opening and closing process are large, the use is laborious, and the use requirement of quick closing in emergency is difficult to meet. In order to enable the opening and closing process of the heavy civil air defense door to be quicker and more labor-saving, the embodiment of the application provides the civil air defense door with the reinforced concrete structure.
The embodiment of the application discloses a reinforced concrete structure civil air defense door. Referring to fig. 1 and 2, the reinforced concrete structure civil air defense door includes a door frame 1, a protective door body 2, a locking mechanism 3, a steering assistance mechanism 4, and a split door sill 5. Wherein, door frame 1 fixed mounting is on civil air defense engineering wall body, and guard gate body 2 is installed on door frame 1 through articulated mode, and locking mechanism 3 installs in the one side of guard gate body 2, and steering assist mechanism 4 installs in guard gate body 2, and split type threshold 5 is installed at the another side of guard gate body 2, and split type threshold 5 is installed on door frame 1 through sliding connection's mode.
The door frame 1 has played the effect of fixing and supporting to the guard gate body 2, guard gate body 2 cooperation door frame 1 has played sealed guard action, install the locking mechanism 3 on guard gate body 2 one side can be fixed and locking with guard gate body 2 and door frame 1, the leakproofness of guard gate body 2 and door frame 1 junction has been promoted, the shock resistance of guard gate body 2 has also been promoted, install the steering assist mechanism 4 in guard gate body 2 can reduce guard gate body 2 and the relative frictional force of ground and door frame junction, thereby reduce the resistance that guard gate body 2 opened and close the in-process and receive, make the open and close process of reinforced concrete people's air defense door more swiftly laborsaving.
Referring to fig. 4 and 5, the door frame 1 is fixedly installed on a wall of a civil air defense project through bolts, the door frame 1 is provided with a plurality of lock cylinders 12 on the same side as the locking mechanism 3 through bolts, in the embodiment of the application, the number of the lock cylinders 12 can be 2, the lock cylinders 12 are used for being matched with the locking mechanism 3 to realize the fastening and locking functions of the locking mechanism 3 to the protective door body 2, each lock cylinder 12 is obliquely provided with a guide plate 121 in a welding manner, the door frame 1 is provided with a plurality of fixing plates 11 on the opposite side of the locking mechanism 3 through welding, in the embodiment of the application, the number of the fixing plates 11 can be 2, the fixing plates 11 are installed on one end, close to the ground, of the door frame 1, and slots for inserting the split type doorsill 5 are formed in the fixing plates 11.
Referring to fig. 2 and 3, the protective door body 2 includes a connector 21, a door panel 22, a reinforcing mesh 23, and a concrete layer 24. The connecting piece 21 comprises a connecting plate 211 welded on one side, far away from the lock cylinder 12, of the door plate 22, gaskets 212 are arranged on the upper side and the lower side of the connecting plate 211, a plurality of circular through holes are formed in the gaskets 212, in the embodiment of the application, the number of the circular through holes can be 6, balls 213 are embedded in each circular through hole, a plurality of rib plates 221 are vertically welded between the door plates 22, rectangular through holes through which a reinforcing mesh 23 can penetrate are formed in the rib plates 221, the reinforcing mesh 23 and the rib plates 221 are vertically spliced into a whole, then the whole is fixed on the inner side of the door plate 22 in a welding mode, and a concrete layer 24 is arranged on the inner side of the door plate 22 in a pouring molding mode and covers the outer sides of the reinforcing mesh 23 and the rib plates 221.
Referring to fig. 6 and 7, the locking mechanism 3 includes a stopper 31, a lock lever 32, a traction plate 33, a screw 34, a bevel gear nut 35, a housing 36, and a hand wheel 37. The limiting barrels 31 are fixedly installed on the door plate 22 of the protective door body 2 in a bolt connection mode, the number of the limiting barrels 31 can be 2 in the embodiment of the application, each limiting barrel 31 is internally provided with a lock rod 32 in a penetrating mode, the traction plate 33 comprises a traction part 331, a connecting part 332 and a buckle 333, one end of the traction part 331 is hinged with the lock rod 32, the other end of the traction part 331 is hinged with the door plate 22 of the protective door body 2, the connecting part 332 is hinged with one end of a screw rod 34, the buckle 333 is sleeved at one end of the traction part 331 far away from the lock rod 32 and one end of the connecting part 332 far away from the screw rod 34, the traction part 331 and the connecting part 332 are assembled into a detachable whole, the screw rod 34 is sleeved with a bevel gear nut 35, one end of a wheel shaft of the hand wheel 37 is sleeved with a bevel gear meshed with the bevel gear nut 35, the shell 36 is installed on the door plate 22 of the protective door body 2 in a bolt connection mode, the shell 36 is wrapped on the outer sides of the screw rod 34, the bevel gear nut 35 and the wheel shaft of the hand wheel 37, and the shell 36 plays a role in limiting the sliding of the screw rod 34 and the rotation of the bevel gear nut 35.
Referring to fig. 2, the steering assist mechanism 4 includes a spring 41, a stopper rod 42, a load bearing wheel 43, and a positioning pin 44. Wherein, spring 41 is located the inboard of guard gate body 2, the one end of spring 41 passes through welded mode and guard gate body 2's door plant 22 fixed connection, welded mode fixed connection is passed through with the top of gag lever post 42 to the other end of spring 41, bearing wheel 43 is installed through welded mode to the bottom of gag lever post 42, bearing wheel 43 can be heavy duty ball-type universal wheel, it has rectangular hole to open on the gag lever post 42, wear to be equipped with locating pin 44 in the rectangular hole, the both ends of locating pin 44 pass through welded mode and guard gate body 2's door plant 22 fixed connection, the locating pin 44 plays the limiting displacement to the slip of gag lever post 42.
Referring to fig. 1 and 4, the split type threshold 5 may be a rectangular metal plate with slots formed in two sides, the split type threshold 5 is mounted on the fixed plate 11 of the door frame 1 in a sliding connection manner, the sealing rubber strip 51 is mounted at the bottom edge of the split type threshold 5 in an adhesive bonding manner, and the sealing rubber strip 51 may be an industrial rubber strip. The sealing rubber strip 51 can improve the sealing performance between the split type threshold 5 and the ground, and further enhances the protection performance of the application.
Referring to fig. 1, the protective door body 2 is mounted with a buffer door closer 6 at the top end on the same side as the locking mechanism 3 by means of bolting, and the other end of the buffer door closer 6 is fixedly connected with the top end of the door frame 1 by means of bolting. The buffer door closer 6 can store kinetic energy into potential energy of a hydraulic spring in the opening process of the protective door body 2, and can be released when the protective door body 2 is closed, so that the closing process of the protective door body 2 is more labor-saving.
The implementation principle of the reinforced concrete structure civil air defense door provided by the embodiment of the application is as follows: in daily life, the application is in a normally open state, and the split type threshold 5 is arranged on one side of the application, so that the influence on normal passing of personnel and vehicles can be avoided. When emergency situations such as explosion and fire occur, personnel avoid entering the civil air defense engineering work and then close the civil air defense door. The split type doorsill 5 is inserted into the fixing plate 11 to be fixed, then the civil air defense door body is pushed until the civil air defense door body is parallel to the doorframe 1, and then the hand wheel 37 is rotated to enable the lock rod 32 to enter the lock cylinder 12, so that the closing and locking of the application are completed. When the hand wheel 37 is rotated in the opposite direction, if the hand wheel 37 cannot be rotated, such as when the locking mechanism 3 is deformed and locked, the operator can slide the buckle 333 to disconnect the traction portion 331 of the traction plate 33 from the connection portion 332, and then pull the lock lever 32 out of the limiting cylinder 31, thereby releasing the locking state of the protective door body 2.
The above is a preferred embodiment of the present application, and is not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (8)
1. The utility model provides a reinforced concrete structure people's air defense door which characterized in that: the door comprises a door frame (1) fixedly arranged on a wall body, a protective door body (2) rotationally connected with the door frame (1), a locking mechanism (3) arranged on the protective door body (2), a steering power assisting mechanism (4) penetrating through the protective door body (2) and a split type door threshold (5) arranged on the door frame; the steering power assisting mechanism (4) comprises a spring (41) with one end abutting against the protective door body (2), a limiting rod (42) penetrating through the protective door body (2) and fixedly connected with the other end of the spring (41), a bearing wheel (43) arranged at the bottom end of the limiting rod (42) and a positioning pin (44) penetrating through the limiting rod (42); the locking mechanism (3) comprises a plurality of limiting cylinders (31) fixed on the protective door body (2), a lock rod (32) penetrating through the limiting cylinders (31), a traction plate (33) hinged with one end, far away from the door frame (1), of the lock rod (32), a lead screw (34) hinged with one end, far away from the lock rod (32), of the traction plate (33), a bevel gear nut (35) sleeved on the lead screw (34), a shell (36) sleeved outside the lead screw (34) and a hand wheel (37) penetrating through the shell (36); the traction plate (33) is hinged with the protective door body (2); the rotating shaft of the hand wheel (37) is meshed with the bevel gear nut (35); the traction plate (33) comprises a traction part (331) hinged with the lock rod (32), a connecting part (332) hinged with the screw rod (34) and a buckle (333) for connecting the traction part (331) and the connecting part (332); when the hand wheel (37) cannot rotate due to deformation and locking of the locking mechanism (3), an operator can slide the buckle (333), disconnect the traction part (331) of the traction plate (33) from the connecting part (332), and pull out the lock rod (32) from the limiting cylinder (31), so that the locking state of the protective door body (2) can be released.
2. A reinforced concrete structure civil air defense door according to claim 1 wherein: the protective door body (2) comprises a plurality of connecting pieces (21) which are rotationally connected with the door frame (1), a door plate (22) which is fixedly connected with the connecting pieces (21), a plurality of reinforcing steel bar meshes (23) which are arranged in the door plate (22) in a penetrating mode and concrete layers (24) which are arranged in the door plate (22) and are coated on the outer sides of the reinforcing steel bar meshes (23).
3. A reinforced concrete structure civil air defense door according to claim 2 wherein: the connecting piece (21) comprises a connecting plate (211) with one end connected with the door plate (22) and gaskets (212) arranged on two sides of the connecting plate (211); the gasket (212) is provided with a plurality of round through holes, and balls (213) are arranged in the through holes.
4. A reinforced concrete structure civil air defense door according to claim 2 wherein: a plurality of rib plates (221) are arranged in the door plate (22), and a plurality of through holes for penetrating the reinforcing mesh (23) are formed in the rib plates (221).
5. A reinforced concrete structure civil air defense door according to claim 1 wherein: one end of the door frame (1) close to the ground is provided with a plurality of fixing plates (11), sliding grooves are formed in the fixing plates (11), and the split type doorsill (5) is in sliding connection with the fixing plates (11).
6. A reinforced concrete structure civil air defense door according to claim 1 wherein: the door frame (1) is provided with a plurality of lock cylinders (12) matched with the lock rod (32) on the same side of the locking mechanism (3), and a guide plate (121) is obliquely arranged in the lock cylinders (12).
7. A reinforced concrete structure civil air defense door according to claim 1 wherein: and a sealing rubber strip (51) is arranged at the bottom edge of the split type threshold (5).
8. A reinforced concrete structure civil air defense door according to claim 1 wherein: the top of the door frame (1) is provided with a buffer door closer (6), and the other end of the buffer door closer (6) is connected with the protective door body (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111225968.0A CN113982436B (en) | 2021-10-21 | 2021-10-21 | Reinforced concrete structure civil air defense door |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111225968.0A CN113982436B (en) | 2021-10-21 | 2021-10-21 | Reinforced concrete structure civil air defense door |
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| CN113982436A CN113982436A (en) | 2022-01-28 |
| CN113982436B true CN113982436B (en) | 2023-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111225968.0A Active CN113982436B (en) | 2021-10-21 | 2021-10-21 | Reinforced concrete structure civil air defense door |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113944385B (en) * | 2021-10-25 | 2023-04-28 | 中铁第四勘察设计院集团有限公司 | Heavy push rod lock for tunnel protection door and tunnel protection door comprising same |
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| CN113982436A (en) | 2022-01-28 |
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