CN111119694A - Transition threshold protective airtight door with uniformly distributed locking - Google Patents
Transition threshold protective airtight door with uniformly distributed locking Download PDFInfo
- Publication number
- CN111119694A CN111119694A CN202010041738.8A CN202010041738A CN111119694A CN 111119694 A CN111119694 A CN 111119694A CN 202010041738 A CN202010041738 A CN 202010041738A CN 111119694 A CN111119694 A CN 111119694A
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- China
- Prior art keywords
- door
- door leaf
- hinge
- door frame
- seat
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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
- E05C9/06—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with three or more sliding bars
- E05C9/063—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with three or more sliding bars extending along three or more sides of the wing or frame
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D7/00—Hinges or pivots of special construction
- E05D7/08—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions
- E05D7/081—Hinges or pivots of special construction for use in suspensions comprising two spigots placed at opposite edges of the wing, especially at the top and the bottom, e.g. trunnions the pivot axis of the wing being situated near one edge of the wing, especially at the top and bottom, e.g. trunnions
-
- 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
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/52—Frames specially adapted for doors
- E06B1/526—Frames specially adapted for doors for door wings that can be set up to open either left or right, outwards or inwards, e.g. provided with grooves for easily detachable hinges or latch plates
-
- 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
- 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
-
- 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
- E06B3/7015—Door leaves characterised by the filling between two external panels
- E06B3/7017—Door leaves characterised by the filling between two external panels of grating type
-
- 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
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention discloses a uniformly-distributed-locking transition threshold protective airtight door which comprises a door leaf, a door frame and a locking mechanism, wherein the door frame is arranged on a wall body; the door frame is a symmetrical door frame, so that the structural strength is effectively improved, and one-frame double-door installation can be carried out according to the situation; the fixed transition doorframe is arranged at the lower part of the doorframe, so that the defects of complex structure and poor protection effect of the existing doorframe are overcome; the uniformly distributed locking structure is adopted, so that the door leaf is stressed more uniformly and is matched with the translation type hinge, so that the door leaf and the door frame are parallel when being closed, the airtight protection effect is effectively improved, and the situation that the hinge is damaged and the door leaf cannot be opened due to rebound when the door leaf is impacted is effectively avoided due to the matching of the door leaf and the translation type hinge; and a double-channel seal is arranged between the door leaf and the door frame to enhance the sealing effect. The invention has the advantages of good sealing protection effect, stable and reliable integral structure, convenient installation and good locking effect.
Description
Technical Field
The invention relates to the technical field of civil air defense equipment, in particular to the technical field of civil air defense doors, and particularly relates to a uniformly-distributed and locked transition threshold protective airtight door.
Background
The airtight door is used in current civil air defense engineering field is in order to play protection and sealed effect when the war, but when taking place the explosion and strike, the door leaf of current airtight door can produce the bounce-back effect, and door leaf and door frame have the trend of separation, can lead to appearing unable opening after the door leaf accepts to strike, play corresponding effect. For safety and guard action, use a plurality of shutting structures more, but generally the interval sets up on the side that opens and shuts of door frame and door leaf, does not generally establish at articulated side, and it is inhomogeneous to lead to the door leaf sealing member to bear the bounce when closed, and then leads to the wearing and tearing of the sealing member of different sides unbalanced, the not good condition of sealed effect appears. The door frame is generally tensioned on a single side during installation, and the door frame is stressed and acts on a wall body on one side, so that the door frame is easy to damage the wall body and fall off. And the unilateral installation type door frame is mostly used, when the bidirectional stress position such as a communication port, an interval partition and the like is used, in order to meet the protection requirement, the combination of the two unilateral installation type door frames is mostly adopted, and the defects of complex integral structure and poor protection effect exist.
The door leaf generally adopts the mode of thickening size to increase the safeguard effect of airtight door, has also increased the weight of door leaf simultaneously, when installing, because the restriction of door leaf size and weight to and error during civil engineering lead to on the door frame built-in fitting inconsistent with the design, when leading to door leaf and door frame to aim at the installation, it is inconsistent with the design condition to appear the installation component easily, the condition of unable accurate alignment, need adjust or rework the articulated elements, it is extremely inconvenient. And because people's air defense airtight door characteristic requirement, it is airtight to realize laminating through the extrusion sealing strip with the door frame after the door leaf installation is accomplished, and then the laminating degree of the interior outside of requirement door leaf in door leaf opening and shutting process door leaf is different with the door frame, and the laminating degree of the interior outside of closed back door leaf and door frame is the same guarantees airtight effect, but current hinge structure can't reach above-mentioned effect, make and can leave the clearance easily between door frame and the door leaf, lead to the sealing member wearing and tearing then the not good condition of leakproofness to appear to lead to appearing easily. In addition, under the action of shock waves, the situation that the door leaf cannot be opened due to damage of the hinge caused by the rebound effect can occur in the door leaf using the existing hinge structure.
The threshold of the existing protective door adopts the traditional movable threshold, and has the defects of complex structure, slow action and limited protective effect.
The invention provides a uniformly-distributed-locking transition threshold protective airtight door which overcomes the defects.
Disclosure of Invention
The invention provides a uniformly-distributed-locking protective airtight door with a transition threshold, which has the characteristics of stable installation and fixation, high strength and good protective effect by arranging a translation hinge to improve the sealing protective effect and arranging a back-pull type door frame.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a uniformly-distributed-locking transition threshold protective airtight door comprises a door leaf, a door frame and a locking mechanism, wherein the door frame is arranged on a wall body, and the door leaf is connected with the wall body through a hinge and locked on the door frame through the locking mechanism;
the door frame comprises back pull panels, door frame plates, opposite pull rods and transition doorsills, the door frame plates are arranged in a door opening of a wall body to form a rectangular door frame, the opposite pull rods are uniformly arranged between the front back pull panel and the back pull panel at intervals to form a back pull frame, the back pull frame is arranged around the rectangular door frame to form a front-back symmetrical structure, and the transition doorsills are arranged at the bottom of the rectangular door frame and are respectively positioned at the front side and the back side of the door frame plate at the bottom;
the locking mechanism comprises locking seats which are uniformly distributed on the periphery of the door frame and locking linkage mechanisms which are arranged in the door leaf; the locking linkage mechanism comprises a locking head, a transmission mechanism and a switch, and the switch controls the locking head to stretch and retract through the transmission mechanism;
the hinge comprises an upper hinge and a lower hinge, the upper hinge and the lower hinge are arranged oppositely up and down, and the lower hinge comprises a fixed hinge seat, a hinge shaft, a bearing and a movable hinge seat; the fixed hinge page seat is arranged on a wall body, the movable hinge page seat is arranged on the door leaf and is positioned above the fixed hinge page seat, the hinge page shaft is arranged between the fixed hinge page seat and the movable hinge page seat, and the bearing is arranged on the hinge page shaft;
and a conformal sealing ring is arranged between the binding surfaces of the door leaf and the door frame, and the sealing ring is arranged on the inner side surface of the door leaf.
Furthermore, the front side and the rear side of the door frame plate are connected with the inner side of the back pull panel to form a slope; the transition doorsill comprises a horizontal plate and inclined plates, the inclined plates are symmetrically arranged on the front side and the rear side of the rectangular door frame, and the horizontal plate is arranged on one side of the door frame, on which the door leaf is arranged, and is connected with the inclined plates and the ground.
Further, the door leaf comprises a door leaf plate and a door leaf framework, and the door leaf plate is wrapped outside the door leaf framework; the door leaf plate on the inner side surface of the door leaf is provided with a boss, the inclined side surface of the boss is matched with a slope surface on the edge of the door frame plate, and the bottom of the door leaf is provided with an inclined slope surface which is matched with the inclined plate of the transition threshold;
the door leaf framework is of a grid type framework structure and comprises framework rods which are arranged transversely and longitudinally at intervals, and through holes through which the locking mechanisms penetrate are formed in the side faces and the surface of the framework rods.
Further, the transmission mechanism comprises a steering gear, a coupling, a connecting rod and a lifter; the shaft couplings are arranged at two ends of the connecting rod to form a transfer rod, the steering gear comprises a cross-shaped reverser and a T-shaped steering gear, and the transfer rod is respectively arranged between the cross-shaped reverser and the T-shaped steering gear, and between the T-shaped steering gear and the elevator; the switch is connected with the cross-shaped commutator, the cross-shaped commutator is connected with the T-shaped steering gear through the transmission rod, the lifter is connected with the T-shaped steering gear through the transmission rod, and the locking head is arranged at the end of the lifter.
Furthermore, the number of the T-shaped steering gears is four, the T-shaped steering gears are respectively located at four output ends of the cross-shaped steering gear, the number of the lifters and the locking heads is eight, the output end of each T-shaped steering gear is provided with two lifters and locking heads, and each end face of the door leaf is provided with two locking heads.
Further, the hinge page or leaf axle includes the waist template and establishes first semi-axis and the lower semi-axis in waist template both sides, the last lower terminal surface of fixed hinge page or leaf seat is equipped with the waist type groove of perpendicular to wall body, the lower terminal surface of activity hinge page or leaf seat is equipped with the circular recess, the waist template is established in the waist type inslot of fixed hinge page or leaf seat up end, the semi-axis is arranged in the inner chamber of fixed hinge page or leaf seat down, last semi-axis and activity hinge page or leaf seat fixed connection.
Further, the lower hinge page also comprises a roller assembly and a roller cover plate; the roller assemblies are arranged in two groups perpendicular to the wall, one group is arranged between the fixed hinge page seat and the waist-shaped plate, the other group is arranged between the fixed hinge page seat and the roller cover plate, and the roller cover plate is positioned in the waist-shaped groove on the lower end surface of the fixed hinge page seat and is fixedly connected with the lower half shaft of the hinge page shaft; the roller cover plate, the fixed hinge page seat and the waist-shaped plate are all provided with strip-shaped grooves, and the roller assembly is arranged in the strip-shaped grooves.
Furthermore, the three bearings are respectively positioned at the upper part, the middle part and the lower part of the hinge shaft, the upper bearing is arranged at the end part of the upper half shaft and positioned in the inner cavity of the movable hinge plate seat, the middle bearing is arranged on the waist-shaped plate and positioned in the circular groove of the movable connecting seat, and the lower bearing is arranged at the end part of the lower half shaft and positioned in the circular groove of the roller cover plate.
Furthermore, the fixed hinge seat is provided with a transverse waist-shaped hole, and the movable hinge seat is provided with a vertical waist-shaped hole and is respectively connected with the wall body and the door leaf through a fixing bolt arranged in the waist-shaped hole.
Furthermore, the sealing rings are arranged twice, one sealing ring is arranged on the inclined side surface of the boss at the inner side of the door leaf, and the other sealing ring is arranged on the bottom layer plane at the inner side of the door leaf and is attached to the door frame; the two sealing rings are shaped in a special way and are matched with the inclined slope surface at the bottom of the door leaf.
The invention has the following beneficial effects:
the translational hinge is adopted to ensure the alignment of the position and the convenience of installation and adjustment when the door leaf is installed through fine adjustment in the transverse and vertical directions when the door leaf is installed; the movable hinge seat and the hinge shaft are fixed in the translation hinge and move together through the roller component to be vertical to the wall, and the position of the door leaf is finely adjusted during opening and closing, so that the door leaf is more tightly attached to the door frame and the door frame of the door leaf is attached in parallel, and the protection effect is effectively enhanced; the hinge is prevented from being damaged due to rebounding when the door leaf is impacted by utilizing the translation function of the hinge.
The back-pull type door frame is adopted, force is transmitted to the whole wall body when the door frame is stressed, the stress is more stable and reasonable, the structural strength is high, the door leaves can be arranged on both sides of the door frame, so that a single hole can bear impact in two directions, and the defects of complex structure, poor stability and low strength when a bilateral door frame is adopted are overcome; the front side and the rear side of the door frame are provided with the slopes and matched with the bosses on the door leaves, and the plane seal and the slope seal are arranged between the door frames of the door leaves for matching, so that the sealing effect is good and the door frame is more reliable;
the uniform distribution type locking structure is adopted and matched with the translation type hinge, when the door leaf is locked after being closed, the door leaf is adjusted to be parallel to the door frame, the stress of the door leaf is more uniform during movement and locking, and the sealing effect is effectively ensured; the uniformly distributed locking structure is stressed dispersedly when receiving impact, so that the situation that the door leaf cannot be opened due to the fact that the hinge is damaged when the rebound force acts on the hinge is avoided;
the double-seal structure has the advantages that double seals are adopted, a cavity is formed between the two seal rings, the internal and external pressure difference of the second seal is reduced, the reliability of the whole seal is further improved, the seal rings are respectively arranged on a plane and an inclined plane, the plane seal has no friction field, the inclined plane seal can generate a self-tightening effect when bearing shock waves, the gas is prevented from leaking, and the reliability of the sealing performance is ensured;
the door leaf framework adopts a grid type framework structure, so that the structural strength, the corresponding resistance requirement and the structural stability of the door leaf are ensured, and the protection strength of the door leaf is ensured to meet the requirement;
the fixed transition doorsill is arranged, so that personnel and equipment can conveniently pass through the fixed transition doorsill without trip feeling, and the fixed transition doorsill is matched with a sealing element between the door leaf and the door frame, so that the sealing effect is effectively improved;
the invention has the advantages of good protection effect, good sealing performance, stable and reliable integral structure, convenient installation and uniform and stable locking effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 4 is a schematic view of a door frame according to the present invention;
FIG. 5 is a schematic cross-sectional view of a door frame of the present invention;
FIG. 6 is a schematic view of the latch of the present invention;
FIG. 7 is a schematic view of a hinge structure of the present invention;
FIG. 8 is a schematic cross-sectional view of the lower hinge of the present invention taken parallel to the wall;
FIG. 9 is a schematic cross-sectional view of the lower hinge of the present invention taken perpendicular to the wall;
FIG. 10 is a schematic view of the door leaf structure of the present invention;
FIG. 11 is a schematic view of the skeletal structure of the present invention;
FIG. 12 is a schematic cross-sectional view of section C of FIG. 10;
FIG. 13 is a schematic view of the seal ring of the present invention;
FIG. 14 is an enlarged view of the part A of FIG. 3;
FIG. 15 is an enlarged view of the portion B of FIG. 3;
fig. 16 is a schematic structural view of the elevator of the present invention.
Reference numerals: 1-door leaf, 11-door leaf plate, 12-door leaf framework, 13-sealing ring, 2-door frame, 21-back pull panel, 22-door frame plate, 23-counter pull rod, 24-transition door sill, 3-locking mechanism, 31-locking seat, 32-locking linkage mechanism, 321-locking head, 322-switch, 323-cross steering gear, 324-T type steering gear, 325-coupler, 326-connecting rod, 327-elevator, 4-hinge, 41-fixed hinge seat, 42-hinge shaft, 43-bearing, 44-roller component, 45-roller cover plate and 46-movable hinge seat.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
As shown in fig. 1, 2 and 3, the uniformly-distributed-locking transition threshold protective airtight door comprises a door leaf 1, a door frame 2 and a locking mechanism 3, wherein the door frame 2 is arranged on a wall body, and the door leaf 1 is connected with the wall body through a hinge 4 and is locked on the door frame 2 through the locking mechanism 3.
As shown in fig. 4 and 5, the door frame 2 includes a back-pull panel 21, a door frame plate 22, a counter-pull rod 23 and a transition threshold 24, the door frame plate 22 is arranged in a door opening of a wall body to form a rectangular door frame, the counter-pull rod 23 is arranged between the front back-pull panel 21 and the back-pull panel 21 at an even interval to form a back-pull frame, the back-pull frame is arranged around the rectangular door frame to form a front-back symmetrical structure, and the transition threshold 24 is arranged at the bottom of the rectangular door frame and is respectively located at the front side and the back side of the door frame plate 22 at the bottom.
The back-pull type door frame structure is more stable in structure, and the door leaves 1 can be arranged on the two sides of the door frame 2 at the communicating port and the interval partition, so that a better sealing protection effect and a better bidirectional force bearing effect are realized.
As shown in fig. 2 and 6, the locking mechanism 3 includes locking seats 31 uniformly distributed around the door frame 2 and a locking linkage mechanism 32 arranged inside the door leaf 1; the locking linkage mechanism 32 comprises a locking head 321, a transmission mechanism and a switch 322, wherein the switch 322 controls the locking head 321 to extend and retract through the transmission mechanism;
the hinge 4 shown in fig. 1, 2 and 7 comprises an upper hinge and a lower hinge which are arranged oppositely, and the lower hinge comprises a fixed hinge base 41, a hinge shaft 42, a bearing 43 and a movable hinge base 46; the fixed hinge page base 41 is arranged on a wall body, the movable hinge page base 46 is arranged on the door leaf 1 and is positioned above the fixed hinge page base 1, the hinge page shaft 42 is arranged between the fixed hinge page base 41 and the movable hinge page base 46, and the bearing 43 is arranged on the hinge page shaft 42.
As shown in fig. 14 and 15, a conformal seal ring 13 is provided on the contact surface between the door 1 and the door frame 2, and the seal ring 13 is provided on the inner surface of the door 1. Through setting up twice sealing washer to form the cavity between twice sealing washer, reduce the inside and outside pressure differential of second way sealed, and then increase whole sealed reliability.
As shown in fig. 5, 14 and 15, further, the front and rear sides of the door frame plate 22 are connected with the inner side of the back-pull panel 21 to form a slope; the transition doorsill 24 comprises a horizontal plate and inclined plates, the inclined plates are symmetrically arranged on the front side and the rear side of the rectangular door frame, and the horizontal plate is arranged on one side of the door leaf 1 on the door frame 2 and connected with the inclined plates and the ground.
The edge of the door frame plate 22 is made into a slope surface, and is better matched with the boss on the door leaf 1 and matched with the sealing ring 13, so that the sealing effect is ensured.
As shown in fig. 10, 11 and 12, further, the door leaf 1 includes a door leaf plate 11 and a door leaf framework 12, and the door leaf plate 11 is wrapped outside the grid-type door leaf framework 12; a boss is arranged on the door leaf plate 11 on the inner side face of the door leaf 1, the inclined side face of the boss is matched with the slope surface on the edge of the door frame plate 22, and the bottom of the door leaf 1 is an integrally inclined slope surface which is matched with the inclined plate of the transition threshold 24;
the door leaf framework 12 is of a grid-type framework structure, and comprises framework rods which are arranged transversely and longitudinally at intervals, and through holes through which the locking mechanisms 3 penetrate are formed in the side faces and the surface of the framework rods. By adopting the grid type door leaf framework 12, the structural strength of the door leaf is enhanced, and meanwhile, the locking mechanism is convenient to mount and the weight is reduced. The skeleton rod in the short distance direction is provided with a main stress beam to ensure the resistance requirement; the auxiliary beam is arranged on the framework rod in the long distance direction to ensure the stable stress of the local grid on the door leaf.
As shown in fig. 6 and 16, further, the transmission mechanism includes a steering gear, a coupling 325, a connecting rod 326 and a lifter 327; the shaft coupling 325 is arranged at two ends of the connecting rod 326 to form a transmission rod, the steering gear comprises a cross-shaped reverser 323 and a T-shaped steering gear 324, and the transmission rod is respectively arranged between the cross-shaped reverser 323 and the T-shaped steering gear 324, and between the T-shaped steering gear 324 and the lifter 327; the switch 322 is connected with the cross-shaped reverser 323, the cross-shaped reverser 323 is connected with the T-shaped steering gear 324 through a transmission rod, the lifter 327 is connected with the T-shaped steering gear 324 through the transmission rod, and the locking head 321 is arranged at the end of the lifter 327.
As shown in fig. 6, after the power of the switch 322 is uniformly distributed and transmitted to the four T-shaped steering gears 324 through the cross-shaped reverser 323 by the locking mechanism 3, each T-shaped steering gear 324 is uniformly distributed and transmitted to the two lifters 327 again, and the locking head 321 is driven by the lifter 327 to move linearly to realize locking and unlocking; when locking action is carried out, the power is uniformly dispersed by adopting the steering gear, and the simultaneous locking of the switch is realized; after the locking, through the shutting of equipartition to cooperation translation formula hinge page or leaf makes the combination of door leaf 1 and door frame 2 laminate more, and the atress is more reasonable, effectively promotes the safeguard effect of door leaf, and the equipartition formula is locked when accepting the impact, and the burden atress avoids leading to the hinge page or leaf impaired because of the bounce-back of door leaf, especially lies in the blocked mechanical system of hinge page or leaf one side, effectively undertakes the impact force, avoids the impact force to transmit to the hinge page or leaf on.
As shown in fig. 16, the lifter 327 receives the rotational curve motion of the transmission rod perpendicular to its axis, and is converted into a linear motion along its axis inside, and is moved by the latch head 321 at its output end to open and close the latch. The function of the elevator 327 is to convert a spiral motion in the lateral direction into a linear motion in the axial direction.
As shown in fig. 15, further, two locking seats 31 and locking heads 321 at the bottom end are disposed below the transition threshold 24, and a through hole through which the locking head 321 passes is disposed on the transition threshold 24.
Preferably, four T-shaped deflectors 324 are provided, each of which is located at four output ends of the cross deflector 323, eight lifters 327 and locking heads 321 are provided, two lifters 327 and locking heads 321 are provided at the output end of each T-shaped deflector 324, and two locking heads 321 are provided at each end surface of the door leaf 1.
As shown in fig. 8 and 9, the hinge shaft 42 includes a waist-shaped plate, and an upper half shaft and a lower half shaft which are disposed at two sides of the waist-shaped plate, the upper end surface and the lower end surface of the fixed hinge seat 41 are provided with waist-shaped grooves perpendicular to the wall, the lower end surface of the movable hinge seat 46 is provided with a circular groove, the waist-shaped plate is disposed in the waist-shaped groove at the upper end surface of the fixed hinge seat 41, the lower half shaft is disposed in the inner cavity of the fixed hinge seat 41, and the upper half shaft is fixedly connected to the movable hinge seat 46 through a bolt disposed at the end thereof.
When the hinge moves, the movable hinge seat 46, the hinge shaft 42 and the roller cover plate 45 are fixed together, and reciprocate in the waist-shaped groove of the fixed hinge seat 41 in the direction perpendicular to the wall body to finely adjust the joint side of the door leaf 1, so that the door leaf 1 is parallel to the door frame 2 after being closed. The sliding hinge is arranged, so that the gap between the door leaf 1 and the door frame 2 can be effectively reduced, and the sealing effect of the protective door is ensured.
As shown in fig. 7, 8 and 9, further, the lower hinge leaf further comprises a roller assembly 44 and a roller cover plate 45; the roller assemblies 44 are arranged in two groups perpendicular to the wall, one group is arranged between the fixed hinge page seat 41 and the waist-shaped plate, the other group is arranged between the fixed hinge page seat 41 and the roller cover plate 45, the roller cover plate 45 is positioned in a waist-shaped groove on the lower end surface of the fixed hinge page seat 41 and is fixedly connected with a lower half shaft of the hinge page shaft 42, and the lower half shaft is connected with the roller cover plate 45 through a bolt arranged at the end part; the roller cover plate 45, the fixed hinge seat 41 and the waist-shaped plate are all provided with strip-shaped grooves, and the roller assembly 44 is arranged in the strip-shaped grooves.
Preferably, the roller cover plate 45 is a waist-shaped plate, and the length of the roller cover plate 45 and the length of the waist-shaped plate of the hinge shaft 42 are both smaller than the length of the waist-shaped groove on the fixed hinge seat 41.
Preferably, two roller assemblies 44 are provided per set, both arranged perpendicular to the wall, one on each side of the hinge axis 42.
Preferably, the roller assembly 44 includes rollers and a cage, and the rollers are spaced apart in the cage to form a strip-shaped structure and are disposed in the strip-shaped grooves.
As shown in fig. 8 and 9, three bearings 43 are further provided, which are respectively located at the upper, middle and lower parts of the hinge shaft 42, the upper bearing 43 is provided at the end of the upper half shaft and located in the inner cavity of the movable hinge seat 46, the middle bearing 43 is provided on the waist plate and located in the circular groove of the movable hinge seat 46, and the lower bearing 43 is provided at the end of the lower half shaft and located in the circular groove of the roller cover plate 45.
Preferably, the bearing 43 in the middle part is a thrust ball bearing, which plays a role in bearing and rotating; the upper and lower bearings 3 are ball bearings, which act as a rotation.
Furthermore, a sealing piece is arranged in a gap between the fixed hinge page seat and the movable hinge page seat, and internal components between the door frame hinge page seat and the door leaf hinge page seat are protected, so that external sundries are prevented from being mixed to influence the service life and the service life.
As shown in fig. 7, further, four transverse waist-shaped holes are formed in the fixed hinge base 41, and four vertical waist-shaped holes are formed in the movable hinge base 46 and are connected to the wall and the door leaf through fixing bolts disposed in the waist-shaped holes. Through set up horizontal and vertical waist type hole on fixed hinge page or leaf seat 41 and activity hinge page or leaf seat 46 respectively, carry out the door leaf when the installation hinge is in horizontal and vertical fine setting, the installation of being convenient for avoids doing over again.
As shown in fig. 13, 14 and 15, the sealing ring 13 is further provided two times, one time is provided on the inclined side surface of the boss inside the door leaf 1, and one time is provided on the bottom plane inside the door leaf 1, and both the sealing rings are attached to the door frame 2; the two sealing rings 13 are both shaped and matched with the inclined slope surface at the bottom of the door leaf 1. Two sealing rings 13 are arranged on the inner side of the door leaf 1, a cavity is formed between the two seals, the internal and external pressure difference of the second seal is reduced, and the reliability of the whole seal is further improved.
The plane seal is convenient to manufacture, and the door leaf is not rubbed when being closed, so that the abrasion is reduced; the inclined plane sealing generates a self-tightening effect when receiving impact, so that gas on the outer side cannot enter the inner side of the door leaf, and the sealing effect is ensured.
Preferably, the sealing ring 13 arranged on the plane is a 0-degree sealing ring, the included angle between the sealing ring 13 and the vertical plane is 0 degree, the sealing ring 13 arranged on the inclined side surface of the boss is a 20-degree sealing ring, and the included angle between the sealing ring 13 and the vertical plane is 20 degrees; the bottom surfaces of the two sealing rings 13 are bent outwards and attached to the inclined slope surface at the bottom of the door leaf 1.
When the invention is installed and assembled, the concrete operation is as follows:
firstly, pre-burying a door frame 2: pre-embedding and mounting the door frame 2 structure on a wall body, fixing the door frame on the wall body, and uniformly arranging and mounting locking seats 31;
mounting a transition threshold 24: installing a transition threshold 24 according to the installation condition of the door leaf 1;
thirdly, pre-installing the door leaf 1: fixing the locking linkage mechanism 32 inside the door leaf framework 12 as required, then assembling the door leaf plate 11 and installing and fixing the sealing ring 13, and transferring the door leaf 1 to an installation position after the completion;
fourthly, installing a door leaf 1: installing the door leaf 1 according to the steps of installing a lower hinge page firstly and installing an upper hinge page after the door leaf 1 is in place;
fifthly, debugging: and (4) debugging the door leaf 1, and performing formal use after debugging is finished.
In the fourth step, the specific operations of installing the door leaf 1 and the hinge page are as follows:
firstly, mounting a lower hinge:
s1, firstly, the fixed hinge base 41 and the movable hinge base 46 are respectively fixed on the door frame and the door leaf in advance by using fixed bolts;
s2, placing the two bearings 43 on the upper part on the hinge shaft 42 at corresponding positions, and then pre-placing the hinge shaft 42 in the fixed hinge base 41;
s3, placing the lower bearing 43 in the roller cover plate 45, and then connecting the roller cover plate 45 with the hinge shaft 42 through the bolt, fixing the hinge shaft at the bottom of the fixed hinge base 41;
s4, dropping the movable hinge base 46 from the top to align with the fixed hinge base 41, and adjusting the positions of the fixed hinge base 41 and the movable hinge base 46 with the fixed bolts in the aligning process to realize the accurate alignment of the fixed hinge base 41 and the movable hinge base 46;
then, installing a hinge:
s5, first, the movable hinge base 46 is pre-fixed on the door leaf 1 by using a fixing bolt, and the hinge shaft 42 with the two bearings 43 at the lower part is placed in the movable hinge base 46;
s6, mounting the fixed hinge base 41 on the door frame from the upper part, and adjusting the relative position of the fixed bolt in the mounting process to realize accurate alignment with the movable hinge base 46;
s7, the bearing 43 at the upper part is placed in the roller cover plate 45, and then is connected with the hinge shaft 42 through the roller cover plate 45 by bolts, and is fixed on the top of the fixed hinge base 41, completing the installation of the door leaf 1.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Claims (10)
1. A uniformly-distributed-locking transition threshold protective airtight door is characterized by comprising a door leaf (1), a door frame (2) and a locking mechanism (3), wherein the door frame (2) is arranged on a wall body, the door leaf (1) is connected with the wall body through a hinge (4) and is locked on the door frame (2) through the locking mechanism (3);
the door frame (2) comprises back pull panels (21), door frame plates (22), opposite pull rods (23) and transition doorsills (24), the door frame plates (22) are arranged in a door opening of a wall body to form a rectangular door frame, the opposite pull rods (23) are uniformly arranged between the front back pull panel (21) and the rear back pull panel (21) at intervals to form the back pull frames, the back pull frames are arranged on the periphery of the rectangular door frame to form a front-back symmetrical structure, and the transition doorsills (24) are arranged at the bottom of the rectangular door frame and are respectively positioned on the front side and the rear side of the door frame plates (22) at the bottom;
the locking mechanism (3) comprises locking seats (31) which are uniformly distributed on the periphery of the door frame (2) and a locking linkage mechanism (32) which is arranged inside the door leaf (1); the locking linkage mechanism (32) comprises a locking head (321), a transmission mechanism and a switch (322), and the switch (322) controls the locking head (321) to extend and retract through the transmission mechanism;
the hinge (4) comprises an upper hinge and a lower hinge, the upper hinge and the lower hinge are arranged oppositely up and down, and the lower hinge comprises a fixed hinge seat (41), a hinge shaft (42), a bearing (43) and a movable hinge seat (46); the fixed hinge page seat (41) is arranged on a wall body, the movable hinge page seat (46) is arranged on the door leaf (1) and is positioned above the fixed hinge page seat (1), the hinge page shaft (42) is arranged between the fixed hinge page seat (41) and the movable hinge page seat (46), and the bearing (43) is arranged on the hinge page shaft (42);
a conformal sealing ring (13) is arranged between the binding surfaces of the door leaf (1) and the door frame (2), and the sealing ring (13) is arranged on the inner side surface of the door leaf (1).
2. The uniformly latched transition threshold protective containment door of claim 1, further comprising: the front side and the rear side of the door frame plate (22) are connected with the inner side of the back pull panel (21) to form a slope; the transition doorsill (24) comprises horizontal plates and inclined plates, the inclined plates are symmetrically arranged on the front side and the rear side of the rectangular door frame, and the horizontal plates are arranged on one side of the door frame (2) where the door leaf (1) is arranged and connected with the inclined plates and the ground.
3. The uniformly latched transition threshold protective containment door of claim 2, further comprising: the door leaf (1) comprises a door leaf plate (11) and a door leaf framework (12), and the door leaf plate (11) is wrapped outside the door leaf framework (12); a boss is arranged on a door leaf plate (11) on the inner side face of the door leaf (1), the inclined side face of the boss is matched with a slope surface on the edge of the door frame plate (22), and the bottom of the door leaf (1) is an inclined slope surface and is matched with an inclined plate of a transition threshold (24);
the door leaf framework (12) is of a grid type framework structure and comprises framework rods which are arranged transversely and longitudinally at intervals, and through holes through which the locking mechanisms (3) penetrate are formed in the side surfaces and the surfaces of the framework rods.
4. The uniformly latched transition threshold protective containment door of claim 1, further comprising: the transmission mechanism comprises a steering gear, a coupling (325), a connecting rod (326) and a lifter (327); the coupler (325) is arranged at two ends of the connecting rod (326) to form a transmission rod, the steering gear comprises a cross-shaped steering gear (323) and a T-shaped steering gear (324), and the transmission rod is respectively arranged between the cross-shaped steering gear (323) and the T-shaped steering gear (324), and between the T-shaped steering gear (324) and the lifter (327); the switch (322) is connected with the cross-shaped reverser (323), the cross-shaped reverser (323) is connected with the T-shaped redirector (324) through the transmission rod, the lifter (327) is connected with the T-shaped redirector (324) through the transmission rod, and the locking head (321) is arranged at the end part of the lifter (327).
5. The uniformly latched transition threshold protective containment door of claim 4, further comprising: the four T-shaped steering gears (324) are respectively arranged at four output ends of the cross-shaped steering gear (323), the number of the lifters (327) and the number of the locking heads (321) are eight, the output end of each T-shaped steering gear (324) is provided with two lifters (327) and two locking heads (321), and each end face of the door leaf (1) is provided with two locking heads (321).
6. The uniformly latched transition threshold protective containment door of claim 1, further comprising: hinge page or leaf axle (42) include the waist template and establish first semi-axis and the lower semi-axis in waist template both sides, the upper and lower terminal surface of fixed hinge page or leaf seat (41) is equipped with the waist type groove of perpendicular to wall body, the lower terminal surface of activity hinge page or leaf seat (46) is equipped with the circular recess, the waist template is established in the waist type inslot of fixed hinge page or leaf seat (41) up end, the semi-axis is located the inner chamber of fixed hinge page or leaf seat (41) down, last semi-axis and activity hinge page or leaf seat (46) fixed connection.
7. The uniformly latched transition threshold protective containment door of claim 6, further comprising: the lower hinge leaf further comprises a roller assembly (44) and a roller cover plate (45); the roller assemblies (44) are arranged in two groups vertical to the wall, one group is arranged between the fixed hinge page seat (41) and the waist-shaped plate, the other group is arranged between the fixed hinge page seat (41) and the roller cover plate (45), and the roller cover plate (45) is positioned in a waist-shaped groove on the lower end surface of the fixed hinge page seat (41) and is fixedly connected with the lower half shaft of the hinge page shaft (42); the roller cover plate (45), the fixed hinge page seat (41) and the waist-shaped plate are all provided with strip-shaped grooves, and the roller assembly (44) is arranged in the strip-shaped grooves.
8. The uniformly latched transition threshold protective containment door of claim 7, further comprising: the three bearings (43) are respectively positioned at the upper, middle and lower parts of the hinge shaft (42), the upper bearing (43) is arranged at the end part of the upper half shaft and positioned in the inner cavity of the movable hinge seat (46), the middle bearing (43) is arranged on the waist-shaped plate and positioned in the circular groove of the movable hinge seat (46), and the lower bearing (43) is arranged at the end part of the lower half shaft and positioned in the circular groove of the roller cover plate (45).
9. The uniformly latched transition threshold protective containment door of claim 7, further comprising: the fixed hinge page seat (41) is provided with a transverse waist-shaped hole, the movable hinge page seat (46) is provided with a vertical waist-shaped hole, and the movable hinge page seat is respectively connected with a wall body and a door leaf through a fixing bolt arranged in the waist-shaped hole.
10. The uniformly latched transition threshold protective containment door of claim 3, further comprising: the sealing rings (13) are arranged twice, one is arranged on the inclined side surface of the boss at the inner side of the door leaf (1), and the other is arranged on the bottom plane at the inner side of the door leaf (1) and is attached to the door frame (2); the two sealing rings (13) are both shaped in a special way and are matched with the inclined slope surface at the bottom of the door leaf (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041738.8A CN111119694A (en) | 2020-01-15 | 2020-01-15 | Transition threshold protective airtight door with uniformly distributed locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041738.8A CN111119694A (en) | 2020-01-15 | 2020-01-15 | Transition threshold protective airtight door with uniformly distributed locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111119694A true CN111119694A (en) | 2020-05-08 |
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ID=70489359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010041738.8A Pending CN111119694A (en) | 2020-01-15 | 2020-01-15 | Transition threshold protective airtight door with uniformly distributed locking |
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| Country | Link |
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| CN (1) | CN111119694A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112515A (en) * | 2020-08-26 | 2020-12-22 | 安徽理工大学 | Anti-oxidation multilayer structure timber |
| CN112112530A (en) * | 2020-11-05 | 2020-12-22 | 中国建筑标准设计研究院有限公司 | Double-leaf steel structure arched pull plate protective airtight door and airtight method thereof |
| CN112227905A (en) * | 2020-12-08 | 2021-01-15 | 中国建筑标准设计研究院有限公司 | Hand-electric dual-purpose double-leaf vertical-rotation type arched protective door and control method |
| CN112412251A (en) * | 2020-12-08 | 2021-02-26 | 中国建筑标准设计研究院有限公司 | Composite cover plate type hand and electricity dual-purpose lifting threshold |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050681A (en) * | 2007-05-22 | 2007-10-10 | 中国建筑标准设计研究院 | Translation vertical rotary hinge |
| CN205206671U (en) * | 2015-11-11 | 2016-05-04 | 李东海 | Burglary -resisting door sealed, that shock -absorbing capacity is good |
| JP2016211718A (en) * | 2015-05-01 | 2016-12-15 | ケージーパルテック株式会社 | Coupling device for wood members |
| CN107956372A (en) * | 2017-12-01 | 2018-04-24 | 江苏远翔装饰工程有限公司 | Accessible high-air-tightness outward swinging door |
| CN208702300U (en) * | 2018-07-11 | 2019-04-05 | 深圳辉达建筑工程有限公司 | Doorframe |
| CN109610986A (en) * | 2019-01-17 | 2019-04-12 | 中国建筑标准设计研究院有限公司 | A kind of executing agency of the dual-purpose protective door of hand, electricity and control method |
| CN110616994A (en) * | 2019-07-23 | 2019-12-27 | 中国核工业华兴建设有限公司 | Fireproof watertight door |
-
2020
- 2020-01-15 CN CN202010041738.8A patent/CN111119694A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101050681A (en) * | 2007-05-22 | 2007-10-10 | 中国建筑标准设计研究院 | Translation vertical rotary hinge |
| JP2016211718A (en) * | 2015-05-01 | 2016-12-15 | ケージーパルテック株式会社 | Coupling device for wood members |
| CN205206671U (en) * | 2015-11-11 | 2016-05-04 | 李东海 | Burglary -resisting door sealed, that shock -absorbing capacity is good |
| CN107956372A (en) * | 2017-12-01 | 2018-04-24 | 江苏远翔装饰工程有限公司 | Accessible high-air-tightness outward swinging door |
| CN208702300U (en) * | 2018-07-11 | 2019-04-05 | 深圳辉达建筑工程有限公司 | Doorframe |
| CN109610986A (en) * | 2019-01-17 | 2019-04-12 | 中国建筑标准设计研究院有限公司 | A kind of executing agency of the dual-purpose protective door of hand, electricity and control method |
| CN110616994A (en) * | 2019-07-23 | 2019-12-27 | 中国核工业华兴建设有限公司 | Fireproof watertight door |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112515A (en) * | 2020-08-26 | 2020-12-22 | 安徽理工大学 | Anti-oxidation multilayer structure timber |
| CN112112530A (en) * | 2020-11-05 | 2020-12-22 | 中国建筑标准设计研究院有限公司 | Double-leaf steel structure arched pull plate protective airtight door and airtight method thereof |
| CN112227905A (en) * | 2020-12-08 | 2021-01-15 | 中国建筑标准设计研究院有限公司 | Hand-electric dual-purpose double-leaf vertical-rotation type arched protective door and control method |
| CN112412251A (en) * | 2020-12-08 | 2021-02-26 | 中国建筑标准设计研究院有限公司 | Composite cover plate type hand and electricity dual-purpose lifting threshold |
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Application publication date: 20200508 |