CN107246224B

CN107246224B - Clean type ventilation protective airtight door

Info

Publication number: CN107246224B
Application number: CN201710612383.1A
Authority: CN
Inventors: 王伟; 刘志超; 胡晓晶
Original assignee: Shanghai Civil Defense Architectural Design & Research Institute Co ltd
Current assignee: Shanghai Civil Defense Architectural Design & Research Institute Co ltd
Priority date: 2017-07-25
Filing date: 2017-07-25
Publication date: 2022-12-23
Anticipated expiration: 2037-07-25
Also published as: CN107246224A

Abstract

The invention provides a clean ventilation protective airtight door which comprises a door leaf, a locking assembly fixed on an inner panel of the door leaf, and a cleaning ventilation assembly arranged on the side, close to a hinge, of the door leaf, wherein the door leaf is provided with a ventilation hole, the cleaning ventilation assembly comprises a plurality of swing valves arranged at the ventilation hole, the cleaning ventilation assembly further comprises a driving system for driving the swing valves, and the driving system comprises a driving device and a reversing transmission assembly arranged between the driving device and the swing valves. The clean ventilation protective airtight door provided by the invention has the advantages that the speed reducer is adopted to drive the threaded rod to wind the steel wire, the suspended swing valve is tensioned and closed, and the opening and closing of the valve can be controlled manually, so that the protective effect is realized, meanwhile, the small airtight protective airtight door used in the existing protective door is replaced to ensure the advanced closing of the valve, the protective and airtight functions are realized, the door is multipurpose, and the cost is reduced.

Description

Clean type ventilation protective airtight door

Technical Field

The invention relates to a civil air defense orifice device, in particular to a novel clean type ventilation protective airtight door.

Background

The clean ventilation protection door is arranged in an underground railway civil air defense engineering ventilation duct and is used for filtering larger particles and explosive residues in air. Present clean formula ventilation guard gate, as shown in fig. 1, its dangling valve closes when leaning on external force and shock wave to strike, and the shock wave weakens the back and opens by self gravity, and it can not artificially close, and the closed condition can not guarantee yet, can lead to the shock wave to strike the back like this, and under the condition that the door leaf opened once more because of the dangling relation, the door leaf can't artificially close in order to prevent poisonous harmful gas to get into, current clean formula ventilation guard gate can't guarantee promptly and realize airtight function. Therefore, the conventional clean ventilation door needs to be additionally provided with a sealing door inside the door leaf, and is closed in wartime to avoid the entry of toxic and harmful gases.

Disclosure of Invention

The invention aims to provide a clean type ventilation protective airtight door which is used for manually controlling the opening and closing of a valve, has multiple purposes and simultaneously realizes the functions of protection and sealing.

In order to achieve the purpose, the invention provides a clean ventilation protective airtight door which comprises a door leaf, a locking assembly fixed on an inner panel of the door leaf and a cleaning ventilation assembly arranged on the side, close to a hinge, of the door leaf, wherein the door leaf is provided with a plurality of ventilation holes, the locking assembly comprises four lock heads and a speed reducer driving the locking assembly to move transversely, the cleaning ventilation assembly comprises a plurality of swing valves respectively fixed at the positions of the ventilation holes on an outer panel of the door leaf, the clean ventilation assembly is characterized by further comprising a driving system arranged on the inner side of the inner panel of the door leaf and driving the swing valves, and the driving system comprises a driving device and a reversing transmission assembly arranged between the driving device and the swing valves.

The reversing transmission assembly comprises a threaded rod, a plurality of guide rods and a plurality of steel wire ropes, the threaded rod and the guide rods are arranged in parallel, the guide rods correspond to the transverse positions of the swing-suspended valve, one ends of the steel wire ropes are fixed on the threaded rod, each steel wire rope respectively bypasses one guide rod, the other end of each steel wire rope is fixed on the swing-suspended valve in a direction perpendicular to the inner panel of the door leaf, and one end of each threaded rod is connected with the driving device.

The horizontal direction of the suspended swing valves is arranged into two rows, the number of the corresponding guide rods is two, and the threaded rod is arranged between the two guide rods.

The threaded rod is provided with a plurality of T-shaped threaded sections used for containing the steel wire rope.

The driving device comprises a speed reduction motor and a speed reducer which are connected, and the output end of the speed reducer is connected with the threaded rod.

The clean ventilation assembly further comprises an oil screen dust filter arranged on the inner side of the door leaf inner panel, and the threaded rod and the guide rods are arranged between the oil screen dust filter and the door leaf inner panel.

The swing-suspended valve comprises a baffle plate covering the ventilation opening and a hinge arranged at the top of the baffle plate and enabling the baffle plate to rotate around the hinge.

And the baffle is provided with a steel wire rope seat for fixing the steel wire rope.

The suspended swinging valve is fixed on the outer side of the ventilation hole through the valve baffle, the valve baffle comprises a side sealing plate inserted in the ventilation hole and a rubber groove fixed on the outer side of the side sealing plate, and sealing rubber is arranged in the rubber groove.

And a knife edge which is in extrusion fit with the sealing rubber is arranged on the baffle of the suspended pendulum valve.

The clean ventilation protective airtight door provided by the invention has the advantages that the speed reducer is adopted to drive the threaded rod to wind the steel wire, the suspended swing valve is tensioned and closed, and the opening and closing of the suspended swing valve can be manually controlled, so that the protective effect is realized, meanwhile, the protective airtight door used for sealing in the existing protective door is replaced to ensure the advanced closing of the valve, the protective and airtight functions are realized, the door is multipurpose, and the cost is reduced.

Drawings

FIG. 1 is a schematic view of a prior art pendulum suspension valve configuration;

FIG. 2 is a schematic view of a clean-style ventilated containment door in accordance with one embodiment of the present invention;

FIG. 3 is a schematic view of the pendulum door of the clean-type ventilated protective containment door shown in FIG. 2;

fig. 4 is a schematic view of a shutter structure of the cantilever shutter shown in fig. 3.

Detailed Description

The following description of the preferred embodiments of the present invention is provided in conjunction with the accompanying drawings and will be described in detail.

Fig. 2 shows a clean-type ventilated protective airtight door according to an embodiment of the present invention, which includes a door leaf 1, a latch assembly 2 fixed to an inner panel of the door leaf 1, and a clean-type ventilation assembly 3 disposed on a near-hinge side of the door leaf.

The door leaf 1 comprises a framework, door leaf inner panels 121 and outer panels (not shown) covering the inner side and the outer side of the framework, the framework of the door leaf 1 comprises a plurality of H-shaped steel main beams 111 which extend transversely and are uniformly distributed and H-shaped steel secondary beams 112 which extend vertically and are uniformly distributed between two adjacent H-shaped steel main beams, and wing plates (not shown) of all the H-shaped steel main beams and the H-shaped steel secondary beams are located on two planes which are parallel to each other. The door leaf inner panel 121 and the outer panel 122 are provided with a plurality of bolt holes and fastened on two sides of the framework. Sealing rubber strips are arranged between the door leaves and the door frame at the four sides of the door leaf inner panel 121 and are used for sealing the door leaves and the door frame; the inner panel and the outer panel of the door leaf are cut into a plurality of vent holes 13 corresponding to the frame beam blank, and the number of the vent holes is calculated according to engineering requirements; in addition, square holes are cut in the inner and outer door leaf panels in the door leaf 1, the size of each square hole is equal to the size of a door leaf framework beam blank, H-shaped steel is arranged on the edge of the door leaf framework beam blank on the inner wall of each square hole, and the ventilation holes 13 are uniformly arranged close to door leaf hinges in consideration of the balance of impact wave load on the door leaf.

The locking assembly 2 is transversely arranged on the inner side of the door leaf inner panel and comprises a speed reducer 21 and four locking heads 22 which are driven by the speed reducer 21 to transversely move, the speed reducer 21 is fixed on the inner side of the door leaf inner panel through a speed reducer base by bolts, the locking heads 22 are respectively and symmetrically arranged near four corners of the door leaf 1, and the locking seats 221 fixed on the door leaf inner panel 121 restrain the locking heads to move along the horizontal direction. The reversing linkage assembly 23 is connected between the speed reducer 21 and the lock head 22 and comprises a reverser 231, a vertical connecting rod 232 and a transverse driving rod 233, wherein the vertical connecting rod 232 and the transverse driving rod 233 are mutually perpendicular to the reverser 231, the transverse driving rod 233 is connected with the lock head 22, and the vertical connecting rod is connected with the speed reducer 21. The base of the commutator 231 is fixed to the inner side of the door inner panel by bolts. The speed reducer 21, the position of the commutator 231, the length of the vertical connecting rod 232 and the length of the horizontal driving rod 233 of the locking assembly 2 are designed according to the number and the position of the door leaf vent holes.

The cleaning type ventilation assembly 3 comprises a plurality of suspended swinging valves 31 respectively arranged at each ventilation hole, a driving system 33 arranged at the inner side of the door leaf inner panel 121 and driving the suspended swinging valves 31, and an oil screen dust filter 34 arranged at the inner side of the door leaf inner panel 121; the swing shutter 31 is disposed outside the door outer panel 122, and as shown in fig. 3, includes a shutter 311 covering the ventilation opening 13 and a hinge 312 disposed on the top of the shutter and allowing the shutter 311 to rotate around the hinge. The four sides of the inner side of the baffle are welded with flat steel knife edges 3111, the bottom is provided with a steel wire rope seat 3112, and steel wire holes are arranged on the steel wire rope seat 3112.

The pendulum flap 31 is fixed outside the vent hole by a flap stop 32. As shown in fig. 4, the shutter guard 32 includes a side sealing plate 321, the side sealing plate 321 is inserted into the ventilation hole 13, and has a square frame shape with a size matching the ventilation hole 13, and four sides of the side sealing plate are perpendicularly attached to the inner wall of the ventilation hole 13 for sealing the side of the ventilation hole. The shutter baffle 32 includes a rubber groove 322 fixed outside the side sealing plate 321 and perpendicular to the side sealing plate 321, the bottom plate of the rubber groove 322 is tightly attached to the outside of the door leaf outer panel 122 and fixed on the door leaf outer panel 122 by bolts, and a sealing rubber 3221 is arranged on the rubber groove 322 and used for being in press fit with a flat steel knife edge 3111 to seal the swing shutter 31 and the door leaf outer panel 122.

Referring to fig. 2, the driving system 33 includes a reduction motor 331, a reducer 332, and a threaded rod 333, which are connected in sequence, and a plurality of steel cables 334 are fixed on the threaded rod 333, and the number of the steel cables is equal to the total number of the pendulum suspension doors 31. The driving system 33 further includes a plurality of guide bars 335 corresponding to the lateral positions of the swing shutter 31, the number of which is equal to the number of rows in the horizontal direction of the ventilation holes 13, both of which are two in this embodiment. Each wire rope 334 extends from the threaded rod 333 in a direction parallel to the panel of the door, turns around a guide rod 335 to a direction perpendicular to the inner panel 121 of the door, and is fixed at the other end to the wire rope seat 3112 of the swing shutter 31. The speed reducing motor 331 and the speed reducer 332 are arranged on the inner side of the door leaf inner panel 121 and at the bottom of the oil screen dust filter 34, and are driven by a transmission chain; the threaded rod 333 and the guide rod 335 are arranged between the oil screen dust filter 34 and the door leaf inner panel 121 in parallel and are supported and fixed through vertical bearing seats 336 at two ends of the threaded rod 333, and the threaded rod 333 is arranged between the two guide rods 335; the threaded rod is provided with a plurality of T-shaped threaded segments for receiving the wire rope 334. In addition, two handwheels can be arranged at the input ends of the two sides of the speed reducer 332 for manual operation and control. A stop 35 may be provided on the side sealing plate 321 of the flap damper for triggering a signal when the pendulum flap 31 is closed in place.

The speed reducer motor 331 drives the speed reducer 332 to rotate, so as to drive the threaded rod 333 to rotate, and 8 steel wire ropes 334 (6 or other numbers may be selected according to circumstances) fixed on the threaded rod 333 are wound, so that the steel wire ropes are tightened, and the steel wire ropes pass through the steel wire rope seat 3112 to drive the swing door 31 to be closed. When the pendulum suspension valve 31 is closed in place, the trigger stopper 35 transmits an electric signal to stop the rotation of the speed reduction motor 331; one end of the wire rope 334 is horizontally fixed on the threaded rod and is fixed on the swing shutter 31 by being converted into a direction perpendicular to the panel of the door leaf 1 by the guide rod 335. When the swing valve is opened, the speed reducer rotates reversely, the steel wire rope is loosened, and the swing valve 31 is opened by the gravity of the swing valve. When power is off, the hand wheel of the speed reducer 332 can be used for manually driving the speed reducer to open and close the suspended swing valve group.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and various modifications may be made to the above-described embodiment of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The invention has not been described in detail in order to avoid obscuring the invention.

Claims

1. A clean ventilation protective airtight door comprises a door leaf (1), a locking assembly (2) fixed on an inner panel of the door leaf (1) and a clean ventilation assembly (3) arranged on the side, close to a hinge, of the door leaf, wherein a plurality of ventilation holes (13) are formed in the door leaf (1), the locking assembly (2) comprises four lock heads (22) and a speed reducer (21) for driving the locking assembly to move transversely, the clean ventilation assembly (3) comprises a plurality of swing valves (31) respectively fixed on each ventilation hole (13) in an outer panel of the door leaf (1), and the clean ventilation assembly (3) is characterized by further comprising a driving system (33) arranged on the inner side of the inner panel (121) of the door leaf and used for driving the swing valves (31), and the driving system (33) comprises driving devices (331 and 332) and reversing transmission assemblies (333, 334 and 335) arranged between the driving devices (331 and 332) and the swing valves (31);

the reversing transmission assembly (333, 334, 335) comprises a threaded rod (333) and a plurality of guide rods (335) which are arranged in parallel and correspond to the transverse positions of the swing-suspended valve (31), one end of each guide rod (335) is fixed to one of the steel wire ropes (334) on the threaded rod (333), each steel wire rope (334) bypasses one guide rod (335), the other end of each steel wire rope is fixed to one swing-suspended valve (31) in a direction perpendicular to the inner panel (121) of the door leaf, and one end of each threaded rod (333) is connected with the driving device (331, 332).

2. The clean-type ventilated protective containment door according to claim 1, wherein said swinging flaps (31) are arranged in two rows horizontally, the corresponding number of said guide rods (335) being two, said threaded rod (333) being arranged between two guide rods (335).

3. The cleanable, ventilated containment door of claim 1, wherein the threaded rod (333) is provided with a plurality of T-shaped threaded segments for receiving a wire rope (334).

4. The clean-type ventilated containment door of claim 1, wherein the drive means (331, 332) comprises a reduction motor (331) and a reducer (332) coupled together, the output of the reducer (332) being coupled to the threaded rod (333).

5. The clean-type ventilated protective airtight door according to claim 1, wherein the clean-type ventilation assembly (3) further comprises an oil screen dust filter (34) disposed inside the door leaf inner panel (121), and the threaded rod (333) and the plurality of guide rods (335) are disposed between the oil screen dust filter (34) and the door leaf inner panel (121).

6. The clean-type ventilated protective containment door of claim 1, wherein the pendulum flap (31) comprises a flap (311) covering the vent (13) and a hinge (312) provided on top of the flap such that the flap (311) can rotate around it.

7. The clean-type ventilation protective airtight door according to claim 6, characterized in that a steel wire rope seat (3112) for fixing the steel wire rope (334) is arranged on the baffle plate (311).

8. The clean-type ventilation protective airtight door as claimed in claim 6, wherein the swinging shutter (31) is fixed outside the ventilation hole by a shutter baffle (32), the shutter baffle (32) comprises a side sealing plate (321) inserted into the ventilation hole (13) and a rubber groove (322) fixed outside the side sealing plate (321), and a sealing rubber (3221) is arranged in the rubber groove (322).

9. The clean-type ventilation protective airtight door as claimed in claim 8, wherein the baffle (311) of the swing shutter (31) is provided with a knife edge (3111) in press fit with the sealing rubber (3221).