CN110206458B - Mirror surface concrete civil air defense door and preparation method thereof - Google Patents
Mirror surface concrete civil air defense door and preparation method thereof Download PDFInfo
- Publication number
- CN110206458B CN110206458B CN201910525709.6A CN201910525709A CN110206458B CN 110206458 B CN110206458 B CN 110206458B CN 201910525709 A CN201910525709 A CN 201910525709A CN 110206458 B CN110206458 B CN 110206458B
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- Prior art keywords
- frame body
- frame
- door leaf
- supporting
- air defense
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
- B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
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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
- 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
- E06B3/42—Sliding wings; Details of frames with respect to guiding
- E06B3/46—Horizontally-sliding wings
- E06B3/4636—Horizontally-sliding wings for doors
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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
- 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
- E06B3/70—Door leaves
- E06B3/72—Door leaves consisting of frame and panels, e.g. of raised panel type
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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
- 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
- E06B7/23—Plastic, sponge rubber, or like strips or tubes
- E06B7/2305—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging
- E06B7/2312—Plastic, sponge rubber, or like strips or tubes with an integrally formed part for fixing the edging with two or more sealing-lines or -planes between the wing and part co-operating with the wing
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Gates (AREA)
- Securing Of Glass Panes Or The Like (AREA)
Abstract
The invention provides a mirror surface concrete civil air defense door and a preparation method thereof, wherein the civil air defense door comprises a door leaf body, the door leaf body comprises a door leaf frame, a C40 concrete layer and a mirror surface concrete layer, wherein the C40 concrete layer and the mirror surface concrete layer are arranged in the door leaf frame, the mirror surface concrete layer is positioned at the outer side of the C40 concrete layer, the door leaf frame comprises a first frame body and a second frame body, the first frame body is arranged at the periphery of the C40 concrete layer and the mirror surface concrete layer, a first arc-shaped groove, a first elastic sliding piece and a supporting groove are arranged on the outer side wall of the first frame body, a second elastic sliding piece, a second arc-shaped groove and a supporting lug are arranged on the inner side wall of the second frame body, the second elastic sliding piece is arranged in the first arc-shaped groove in a sliding mode, the supporting lug is arranged in the supporting groove, a plurality of friction rollers are arranged between the supporting lug and the supporting groove, and the friction rollers are arranged along the axial direction of the supporting groove. The invention can consume the impact force received by the buffer door leaf body, can also enable the civil air defense door to be formed at one time, and is convenient for preparing the civil air defense door.
Description
Technical Field
The invention relates to the technical field of civil air defense, in particular to a mirror surface concrete civil air defense door and a preparation method thereof.
Background
Along with the adjustment of national policies, the requirements of the country on civil air defense engineering construction are gradually increased, and the requirements of the market on civil air defense protection equipment are gradually increased year by year; however, the production process of the civil air defense equipment is not advanced gradually, and the problems existing in the production of the original civil air defense equipment are not solved effectively. The production of the common reinforced concrete civil air defense door adopts C40 concrete for pouring, and a vibrating rod for pouring is used for vibration molding on a flat plate mold. The formed surface is affected by the roughness of the flat mold and the coarse aggregate and the fine aggregate of the C40 concrete, so that the surface finish is poor, the surface quality is difficult to control, and honeycombs and pitting surfaces are easy to appear. After pouring, the pouring needs to be checked and repaired manually. The surface quality of the common civil air defense door is difficult to control, a large amount of manpower is wasted for repairing, and the production cost is increased.
In addition, the civil air defense door is a door arranged at the entrance and exit of the civil air defense, and needs to have high impact resistance. The usual one side of people's air defense door is provided with a plurality of swivel sleeves, articulates on the wall body through swivel sleeves, axostylus axostyle, and the back is opened to the door plant, and swivel sleeves should bear the weight of whole door plant, swivel sleeves, door plant deformation or fracture easily.
CN109577819a discloses a high-strength civil air defense door and manufacturing process thereof, including the door leaf body, the door leaf body includes the framework and sets up in the framework and be connected with the framework, and the door plant is provided with inlayer high strength steel sheet layer, inlayer plumbous sheet layer from inside to outside, inlayer reinforced concrete layer, cavity buffer layer, outer plumbous sheet layer, outer high strength steel sheet layer and outer reinforced concrete layer, and the door plant of this civil air defense door is through setting up multilayer structure, improves shock resistance, makes the preparation process of civil air defense door become loaded down with trivial details.
CN107178291B discloses a civil air defense door, the civil air defense door includes interior door leaf and outer door leaf, interior door leaf is connected by sliding connection mechanism with outer door leaf, be equipped with the buffer layer between the two, sliding connection mechanism includes pulley and slide, the pulley sets up on the door leaf including, the slide sets up on the first recess of outer door leaf, one side that the door leaf was kept away from to outer door leaf is the arc structure, the inside steel construction cylinder that sets up a plurality of metal fastener and link up from top to bottom of outer door leaf, a plurality of steel construction cylinder surfaces are tangent each other, the interval is filled with fire-proof material, receive the impact when outer door leaf, can extrude the buffer layer, thereby inwards the door leaf motion, reduce the impact force that interior door leaf received, alleviate the weight of outer door leaf through setting up metal fastener and steel construction cylinder. The civil air defense door cannot be formed at one time, the inner door leaf and the outer door leaf are required to be connected together in a butt joint mode during preparation, and the inner door leaf and the outer door leaf are large in size, heavy in mass and large in butt joint working difficulty.
Disclosure of Invention
The mirror surface concrete civil air defense door and the preparation method thereof provided by the invention can consume impact force received by the buffer door leaf body, reduce damage of the door leaf body due to impact, enable the civil air defense door to be molded at one time, facilitate preparation of the civil air defense door, and ensure surface quality of products by adopting the mirror surface concrete.
The technical scheme of the invention is realized as follows: the utility model provides a mirror surface concrete civil air defense door, including the door leaf body, the door leaf body includes the door leaf frame and sets up C40 concrete layer and mirror surface concrete layer in the door leaf frame, mirror surface concrete layer is located the outside of C40 concrete layer, the door leaf frame includes first framework and second framework, first framework sets up around C40 concrete layer and mirror surface concrete layer, be provided with first arc wall on the lateral wall of first framework, first elastic sliding part and supporting slot, be provided with second elastic sliding part on the inside wall of second framework, second arc wall and supporting lug, second elastic sliding part slides and arranges in first arc wall, first elastic sliding part slides and arranges in the second arc wall, supporting lug arranges in the supporting slot, be provided with a plurality of friction rollers between supporting lug and the supporting slot, the friction roller sets up along the axial of supporting slot.
Further, the first elastic sliding piece and the second elastic sliding piece comprise a sliding groove and a connecting shaft, an elastic piece is arranged in the sliding groove, one end of the connecting shaft is rotatably provided with a roller, and the other end of the connecting shaft is arranged in the sliding groove in a sliding manner and is connected with the elastic piece.
Further, the support lug is located one side that mirror surface concrete was kept away from to the second arc groove, is provided with the seal groove along all around on the lateral wall of support lug, and the seal groove is provided with joint strip.
Further, the gaps of the first frame body and the second frame body on two sides of the friction roller and two sides of the second arc-shaped groove and the gaps of the two sides of the first frame body and the second frame body are filled with elastic colloid for sealing.
Further, both ends of the axial direction of the supporting groove are provided with limiting blocks, and the height of each limiting block is smaller than the diameter height of each friction roller.
Further, the lower extreme of the door leaf body is provided with the roll supporting component, and the roll supporting component includes connecting screw and backup pad, and the backup pad sets up in the lower extreme of first framework, and connecting screw upper end is pre-buried in C40 concrete layer, and the lower extreme passes first framework and links to each other with the upper end of backup pad, and the lower extreme of backup pad is connected with the back shaft through the bearing, and the lower extreme of back shaft is provided with the walking wheel.
The preparation method of the mirror surface concrete civil air defense door comprises the following steps:
(1) Preparing a door leaf frame: welding a first frame, then respectively placing four frame edges of a second frame on the frame edges corresponding to the first frame, placing friction rollers between the supporting convex blocks and the supporting grooves, filling elastic colloid at the gaps between the first frame and the corresponding frame edges on two sides of the friction rollers and two sides of the second arc-shaped groove, then welding the four frame edges of the second frame, and finally filling the elastic colloid at the gaps on two sides of the first frame and the second frame;
(2) Pouring and forming: fixing the prepared door leaf frame on a mould platform, smearing a spacer on the mould platform, pouring mirror surface concrete and performing vibration molding, and pouring C40 concrete and performing vibration molding;
(3) Steam curing: curing by low-temperature steam, and demolding.
Further, in the step (2), the isolating agent is paraffin.
Further, in the step (3), the temperature of the low-temperature steam curing is 40 ℃.
The invention has the beneficial effects that:
according to the invention, when the door leaf body is subjected to external impact force, the first frame body, the C40 concrete layer and the mirror surface concrete layer shake towards the second frame body, the first arc-shaped groove extrudes the second elastic sliding piece, the second arc-shaped groove extrudes the first elastic sliding piece, the friction roller rubs and rolls between the supporting convex block and the supporting groove, and the impact force applied to the door leaf body is buffered by the cooperation of the structures, so that the damage of the door leaf body due to impact is reduced; after the impact is finished, the first arc-shaped groove is matched with the second elastic sliding piece, the second arc-shaped groove is matched with the first elastic sliding piece, and the first frame body, the C40 concrete layer and the mirror surface concrete layer are convenient to reset.
Limiting blocks are arranged at the two axial ends of the supporting groove, the height of each limiting block is smaller than the diameter height of each friction roller, the limiting blocks are used for limiting the axial movement of each friction roller, meanwhile, the radial rolling of each friction roller is not influenced, and the stability of a door leaf frame structure is guaranteed; the rolling support assembly is arranged at the lower end of the door leaf body, so that the door leaf body can be conveniently opened and closed, and meanwhile, the door leaf body is supported, and when the door leaf body is prevented from being opened, the door leaf body and the rotary shaft sleeve are prevented from being deformed by weight.
According to the preparation method of the civil air defense door, the mirror surface concrete is used for pouring the outer surface of the civil air defense door, so that the strength of the door leaf is ensured, and meanwhile, the surface quality of the civil air defense door leaf is greatly improved; paraffin is used as a release agent, and the surface of the concrete has better gloss than that of the concrete with the oily release agent; compared with high-temperature steam curing, the curing method adopts low-temperature steam curing, can effectively reduce the generation of hydration heat, and reduces the possibility of cracking of the civil air defense door.
In the invention, although two pouring processes are adopted, the pouring interval time is short, and the two pouring processes are cast-in-place concrete, so that the binding force of the concrete is not different from that of one-time pouring molding; by the method, the strength of the product is ensured, the civil air defense door can be molded at one time, and the surface quality of the product is ensured.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the structure of a mirror concrete civil air defense door of the invention;
FIG. 2 is an enlarged view of a portion of FIG. 1A;
FIG. 3 is a cross-sectional view of B-B of FIG. 1;
FIG. 4 is a cross-sectional view of C-C of FIG. 1;
FIG. 5 is a top view of the door frame;
fig. 6 is a front view of the door frame.
Door leaf frame 1, C40 concrete layer 2, mirror surface concrete layer 3, first framework 4, second framework 5, first arc wall 6, first elastic sliding part 7, supporting groove 8, second elastic sliding part 9, second arc wall 10, supporting lug 11, friction roller 12, stopper 13, elastic colloid 14, spout 15, connecting axle 16, spring 17, fly leaf 18, baffle 19, seal groove 20, connecting screw 21, backup pad 22, supporting axle 23, walking wheel 24, swivel sleeve 25, mould platform 26, connecting rod 27.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-4, a mirror surface concrete civil air defense door, including the door leaf body, the door leaf body includes door leaf frame 1 and sets up C40 concrete layer 2 and mirror surface concrete layer 3 in door leaf frame 1, mirror surface concrete layer 3 is located the outside of C40 concrete layer 2, door leaf frame 1 includes first framework 4 and second framework 5, first framework 4 is fixed around C40 concrete layer 2 and mirror surface concrete layer 3, be provided with first arc wall 6 on the lateral wall of first framework 4, first elastic sliding part 7 and supporting slot 8, be provided with second elastic sliding part 9 on the inside wall of second framework 5, second arc wall 10 and supporting lug 11, second elastic sliding part 9 slides and arranges in first arc wall 6, first elastic sliding part 7 slides and arranges in second arc wall 10, supporting lug 11 arranges in supporting slot 8, be provided with a plurality of friction roller 12 between supporting lug 11 and the supporting slot 8, friction roller 12 is along the axial setting of supporting slot 8, friction roller 12 surface roughness, when the body friction 12 receives outside impact force, the axial direction of the stopper is provided with the high friction force of both sides of adjacent roller 12 along the supporting slot 13, the high friction force of the stopper is equal, the high friction 13 is provided with the stopper.
The gap between the first frame body 4 and the second frame body 5 at two sides of the friction roller 12 and two sides of the second arc-shaped groove and the gap between the first frame body 4 and two sides of the second frame body 5 are filled with elastic colloid 14 for sealing, the first arc-shaped groove 6 can be a communication groove formed around the side wall of the first frame body 4 or a spacing groove formed around the side wall of the first frame body 4, and the structures of the second arc-shaped groove 10 and the first arc-shaped groove 6 are the same.
The first elastic sliding piece 7 and the second elastic sliding piece 9 comprise a sliding groove 15 and a connecting shaft 16, an elastic piece is arranged in the sliding groove 15 and comprises a spring 17 and a movable plate 18 connected with the spring 17, a baffle 19 is fixedly welded at the opening of the sliding groove 15, a roller is rotatably arranged at one end of the connecting shaft 16, and the other end of the connecting shaft slides through the baffle 19 and is fixedly welded with the movable plate 18.
The support lug 11 is located the side that the mirror surface concrete was kept away from to the second arc wall 10, is provided with seal groove 20 along all around on the lateral wall of support lug 11, is fixed with joint strip in the seal groove 20.
The lower extreme of door leaf body is provided with the roll supporting component, and the roll supporting component includes connecting screw rod 21 and backup pad 22, and backup pad 22 welded fastening is in the lower extreme of first framework 4, and connecting screw rod 21 upper end is pre-buried in C40 concrete layer 2, and the lower extreme passes first framework 4 and the upper end welded fastening of backup pad 22 links to each other, and the lower extreme of backup pad 22 is connected with back shaft 23 through the bearing, and walking wheel 24 is installed to back shaft 23's lower extreme.
The civil air defense door further comprises a conventional structure of the existing civil air defense door, such as a door frame matched with the door leaf body, a rotary shaft sleeve 25, a locking device and the like, and the outer layer of the mirror surface concrete layer 3 can be provided with a corrosion-resistant layer and the like according to requirements.
The application method of the embodiment comprises the following steps: when the door leaf body is required to be closed, the door leaf body is pushed to be placed in a door frame, a locking device is started, a sealing rubber strip is matched with the door frame, sealing of the door leaf is achieved, when the door leaf body is subjected to external impact force, the first frame body 4, the C40 concrete layer 2 and the mirror surface concrete layer 3 shake towards the second frame body 5, the first arc-shaped groove 6 extrudes the second elastic sliding piece 9, the second arc-shaped groove 10 extrudes the first elastic sliding piece 7, and the friction roller 12 rubs and rolls between the supporting convex block 11 and the supporting groove 8, so that the impact force applied to the door leaf body is consumed; after the impact is finished, the first arc-shaped groove 6 is matched with the second elastic sliding piece 9, the second arc-shaped groove 10 is matched with the first elastic sliding piece 7, and the first frame 4, the C40 concrete layer 2 and the mirror surface concrete layer 3 are convenient to reset.
Example two
As shown in fig. 5 and 6, a method for manufacturing a mirror concrete civil air defense door according to an embodiment includes the following steps:
(1) Preparing a door leaf frame 1: welding the first frame body 4, then respectively placing the four frame edges of the second frame body 5 on the frame edges corresponding to the first frame body 4, placing friction rollers 12 between the supporting convex blocks 11 and the supporting grooves 8, filling elastic colloid 14 at the gaps between the first frame body 4 and the corresponding frame edges on two sides of the friction rollers 12 and two sides of the second arc-shaped grooves, welding the four frame edges of the second frame body 5 together, and finally filling the elastic colloid 14 at the gaps on two sides of the first frame body 4 and the second frame body 5;
(2) Pouring and forming: the prepared door leaf frame 1 is fixed on a die platform 26, the die platform 26 is made of an alloy material with a smooth surface, the smooth surface of the die processed by the alloy material reaches the mirror surface standard, and the smooth finish of the die surface can be ensured for a long time;
the reinforcing mesh, the connecting rod 27 to which the locking device is attached, and the like are laid in the door frame 1 as necessary, and the rotating boss 25 and the like are attached to the first housing 4, and the reinforcing mesh, the rotating boss 25, the connecting rod 27 to which the locking device is attached, and the like are conventional in the art.
Smearing a release agent which is paraffin on a mould platform 26, firstly pouring mirror surface concrete of 20mm, and vibrating and forming by a vibrating table, and then pouring C40 concrete and vibrating and forming by the vibrating table; the vibration mode is changed from original vibration by a vibrating rod to vibration molding by a vibrating table, so that the molding is more uniform;
(3) Steam curing: curing by low-temperature steam at 40 ℃, and demolding.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a mirror surface concrete civil air defense door, includes the door leaf body, its characterized in that: the door leaf body comprises a door leaf frame (1) and a C40 concrete layer (2) and a mirror surface concrete layer (3) which are arranged in the door leaf frame (1), the mirror surface concrete layer (3) is positioned on the outer side of the C40 concrete layer (2), the door leaf frame (1) comprises a first frame body (4) and a second frame body (5), the first frame body (4) is arranged on the periphery of the C40 concrete layer (2) and the mirror surface concrete layer (3), a first arc-shaped groove (6), a first elastic sliding piece (7) and a supporting groove (8) are arranged on the outer side wall of the first frame body (4), a second elastic sliding piece (9), a second arc-shaped groove (10) and a supporting lug (11) are arranged on the inner side wall of the second frame body (5), the second elastic sliding piece (9) is arranged in the first arc-shaped groove (6), the first elastic sliding piece (7) is arranged in the second arc-shaped groove (10), the supporting lug (11) is arranged in the supporting groove (8), a plurality of friction rollers (12) are arranged between the supporting lug (11) and the supporting groove (8), and the friction rollers (12) are arranged along the axial direction of the supporting groove (8);
the first elastic sliding piece (7) and the second elastic sliding piece (9) comprise a sliding groove (15) and a connecting shaft (16), an elastic piece is arranged in the sliding groove (15), one end of the connecting shaft (16) is rotatably provided with a roller, and the other end of the connecting shaft is arranged in the sliding groove (15) in a sliding manner and is connected with the elastic piece;
the gaps of the first frame body (4) and the second frame body (5) at the two sides of the friction roller (12) and the two sides of the second arc-shaped groove and the gaps of the two sides of the first frame body (4) and the second frame body (5) are filled with elastic colloid (14) for sealing;
the preparation method of the mirror surface concrete civil air defense door is characterized by comprising the following steps of: the method comprises the following steps:
(1) Preparing a door leaf frame (1): welding a first frame body (4), then respectively placing four frame edges of a second frame body (5) on the frame edges corresponding to the first frame body (4), placing friction rollers (12) between supporting convex blocks (11) and supporting grooves (8), filling elastic colloid (14) at the gaps between the first frame body (4) on two sides of the friction rollers (12) and two sides of the second arc-shaped groove and the corresponding frame edges, then welding the four frame edges of the second frame body (5), and finally filling the elastic colloid (14) at the gaps on two sides of the first frame body (4) and the second frame body (5);
(2) Pouring and forming: fixing the prepared door leaf frame (1) on a mould platform, smearing a spacer on the mould platform, pouring mirror surface concrete and performing vibration molding, and pouring C40 concrete and performing vibration molding;
(3) Steam curing: curing by low-temperature steam, and demolding.
2. A mirror concrete civil air defense door according to claim 1 wherein: the support lug (11) is located one side of second arc wall (10) keeping away from mirror surface concrete, is provided with seal groove (20) along all around on the lateral wall of support lug (11), and seal groove (20) are provided with joint strip.
3. A mirror concrete civil air defense door according to claim 1 or 2 wherein: limiting blocks (13) are arranged at two axial ends of the supporting groove (8), and the height of each limiting block (13) is smaller than the diameter height of each friction roller (12).
4. A mirror concrete civil air defense door according to claim 1 wherein: the lower extreme of door leaf body is provided with the roll supporting component, the roll supporting component includes connecting screw rod (21) and backup pad (22), backup pad (22) set up in the lower extreme of first framework (4), connecting screw rod (21) upper end pre-buried in C40 concrete layer (2), the lower extreme passes first framework (4) and links to each other with the upper end of backup pad (22), the lower extreme of backup pad (22) is connected with back shaft (23) through the bearing, the lower extreme of back shaft (23) is provided with walking wheel (24).
5. A mirror concrete civil air defense door according to claim 1 wherein: in the step (2), the isolating agent is paraffin.
6. A mirror concrete civil air defense door according to claim 1 or 5 wherein: in the step (3), the temperature of the low-temperature steam curing is 40 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525709.6A CN110206458B (en) | 2019-06-18 | 2019-06-18 | Mirror surface concrete civil air defense door and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910525709.6A CN110206458B (en) | 2019-06-18 | 2019-06-18 | Mirror surface concrete civil air defense door and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110206458A CN110206458A (en) | 2019-09-06 |
| CN110206458B true CN110206458B (en) | 2023-10-27 |
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| CN201910525709.6A Active CN110206458B (en) | 2019-06-18 | 2019-06-18 | Mirror surface concrete civil air defense door and preparation method thereof |
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| CN114016873B (en) * | 2021-09-27 | 2023-07-18 | 中国一冶集团有限公司 | Construction method for civil air defense threshold sill pouring and civil air defense door installation |
| CN115157432B (en) * | 2022-06-21 | 2023-11-24 | 河南鼎力杆塔股份有限公司 | Production line and production method of hollow interlayer composite material pole tower |
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