CN209603794U - It is a kind of can the impact of anti-negative pressure explosion wave prevention active door - Google Patents
It is a kind of can the impact of anti-negative pressure explosion wave prevention active door Download PDFInfo
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- CN209603794U CN209603794U CN201821842655.3U CN201821842655U CN209603794U CN 209603794 U CN209603794 U CN 209603794U CN 201821842655 U CN201821842655 U CN 201821842655U CN 209603794 U CN209603794 U CN 209603794U
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- door leaf
- hanging deck
- door
- impact
- wave prevention
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Abstract
The utility model disclose it is a kind of can anti-negative pressure impact explosion wave prevention active door, door leaf (2) including having at least one ventilation hole (1), and it is set to the hanging deck (51) on the outside of door leaf (2), hanging deck (51) upper end and door leaf (2) are hinged, lower end is far from door leaf (2), when hanging deck (51) lower end is close to door leaf (2), ventilation hole (1) can all be covered, the second hanging deck (52) are additionally provided on the inside of the door leaf (2), second hanging deck (52) upper end and door leaf (2) are hinged, lower end is far from door leaf (2), when second hanging deck (52) lower end is close to door leaf (2), ventilation hole (1) can all be covered.The explosion wave prevention active door of the utility model, structure is simple, easy to use, is not only able to the underbalance effect for meeting the pressure for preventing shock wave pressure forward impact air defense basement, while capable of preventing warm induction from generating, i.e. reverse impact wave.
Description
Technical field
The utility model relates to explosion wave prevention active door technical field, more particularly to it is a kind of can anti-negative pressure impact explosion-wave-preventing it is living
Door.
Background technique
Explosion wave prevention active door is typically mounted on ventilation oral area such as the important safeguard of air defense basement as civil air defense constructions and installations,
Towards outside engineering, rear usually connects diffuser casing or diffusion chamber in its front, weakens for wartime or shock wave is prevented to enter engineering
Inside, to guarantee that technical interior is no more than permissible value, in order to avoid cause injuring for personnel or equipment.
Hanging deck type explosion blast proof movable door is the explosion wave prevention active door being most widely used.Its structure such as Chinese utility model patent
" hanging deck type explosion blast proof movable door " (application number: 200420004791.7, publication date: 2005-03-09) is described, generally includes and door
Frame wall by armored concrete pours connected steel door frame and by hinge ear and the hinged valve of steel door frame.During engineering maintenance or
When mean time ventilation, valve is opened, into exhaust air rate maximum.Valve surface is provided with ventilation hole, and at least one piece is equipped with outside ventilation hole and is hanged
Plate, hanging deck upper end and free bearing are hinged.Wartime, engineering be not hit wave impact when, hanging deck lower end is far from valve surface, i.e., at hanging deck
When the open state of inclination hovering, a small amount of ventilation, when divulging information or filter malicious formula ventilation such as wartime cleaning type, air-flow is unobstructed.
When engineering oral area is by impact wave impact, hanging deck using the upper end as axis, closely paste close to valve surface with valve surface by lower end
It closes, enclosed ventilation hole, barrier technical interior and extraneous ventilation.
With that can generate forward impact wave, can make technical interior pressure is more than the ability to bear of personnel or equipment, is caused
Personnel or equipment are injured, moreover it is possible to generate reverse impact wave, technical interior is caused the warm induction of underbalance effect occur (also referred to as
FAE. bomblet, air fuel explosive bomb, air fuel bullet etc.) appearance, the hanging deck type explosion blast proof movable door of above structure exposes its birth defect:
The plate that dangles is the main component of hanging deck type explosion blast proof movable door shockproof wave, and Gravitative Loads and valve is usually leaned on to keep certain angle
It opens to guarantee to divulge information, when the shock wave external from engineering reaches, hanging deck is closed rapidly under shock wave, can be stopped big
Part shock wave enters technical interior, however, hanging when warm induction generates the reverse impact wave outside from technical interior to engineering
Wobble plate is still kept it turned on, and can not obstruct technical interior and extraneous air circulation, technical interior is caused negative pressure occur, this
State is unallowable when wartime, engineering was closed.
Utility model content
The purpose of this utility model is to provide it is a kind of can anti-negative pressure impact explosion wave prevention active door, being not only able to meet prevents
The pressure of shock wave pressure forward impact air defense basement, while can prevent warm induction from (or being FAE. bomblet, air fuel explosive bomb, air
Fuel bullet) generate underbalance effect, that is, generate reverse impact wave explosion wave prevention active door.
Realize the technical solution of the utility model aim are as follows:
It is a kind of can the impact of anti-negative pressure explosion wave prevention active door, including having the door leaf 2 of at least one ventilation hole 1, and be set to
The hanging deck 51 in 2 outside of door leaf, 51 upper end of hanging deck and door leaf 2 are hinged, and lower end is far from door leaf 2, and 51 lower end of hanging deck is close to door leaf 2
When, ventilation hole 1 can be all covered, is additionally provided with the second hanging deck 52,52 upper end of the second hanging deck and door in the inside of the door leaf 2
Fan 2 is hinged, and lower end is far from door leaf 2, when 52 lower end of the second hanging deck is close to door leaf 2, can all cover ventilation hole 1.
As an improvement, be additionally provided on the outside of the door leaf 2 upper surface be located at behind 51 lower end surface of hanging deck it is outstanding for limiting
The limit support 41 of 51 swing angle of plate.
As a further improvement, being additionally provided on the inside of the door leaf 2 after upper surface is located at 52 lower end surface of the second hanging deck
For limiting the second limit support 42 of 52 swing angle of the second hanging deck.
Compared with prior art, the remarkable result of the utility model are as follows:
1, two-way resistance to compression: the hanging deck that can all cover ventilation hole 1 is arranged in the inside and outside two sides of door leaf 2 simultaneously for the utility model,
Diffusion in impact wave direction engineering can be prevented, plays the role of anti-positive pressure impact, also can prevent technical interior air excess from leaking,
Effectively resist the attack that warm induction etc can generate the weapon of underbalance effect；
2, process, install it is simple and convenient: the utility model is right using the hanging deck of the inside and outside two sides of door leaf 2 being symmetrically disposed on
Some Cantilever Structures do not make big change, and components interchangeability, versatility are good, processing easy to produce.Meanwhile door leaf two sides hanging deck about
Door leaf is symmetrical arranged, and is not had to when installation pay special attention to airflow direction, is simplified construction and installation.
Detailed description of the invention
Fig. 1 be the present invention can the impact of anti-negative pressure explosion wave prevention active door structural schematic diagram.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the front view of Fig. 1.
Structural schematic diagram when Fig. 4 is the non-installation activity hanging deck of explosion wave prevention active door in Fig. 1.
Wherein: 1- ventilation hole, 2- door leaf, 3- connection doorframe, 41- limit support, the limit support of 42- second, 51- hanging deck,
The second hanging deck of 52-, 6- pivoting support, 61- firm banking, 62- rotate connecting bracket, 63- hinged shaft；7- fastener.
Specific embodiment
As shown in Figure 1, 2, 3, the utility model can the impact of anti-negative pressure explosion wave prevention active door, including at least one ventilation
The door leaf 2 in hole 1, and the hanging deck 51 set on the outside of door leaf 2,51 upper end of hanging deck and door leaf 2 are hinged, lower end far from door leaf 2,
When 51 lower end of hanging deck is close to door leaf 2, ventilation hole 1 can be all covered, is additionally provided with the second hanging deck 52, institute in the inside of the door leaf 2
It states 52 upper end of the second hanging deck and door leaf 2 is hinged, lower end can all be covered when second hanging deck, 52 lower end is close to door leaf 2 far from door leaf 2
Lid ventilation hole 1.
It is located at behind 51 lower end surface of hanging deck as an improvement being additionally provided with upper surface on the outside of the door leaf 2 for limiting
The limit support 41 of 51 swing angle of hanging deck processed.
As a further improvement, being additionally provided on the inside of the door leaf 2 after upper surface is located at 52 lower end surface of the second hanging deck
For limiting the second limit support 42 of 52 swing angle of the second hanging deck.
Each limit support 41,42 one end are fixed in door body, and the other end forms a folding towards the bending of door body direction
Flextensional angle can limit the swing angle of movable hanging deck.
In order to guarantee that each piece of movable hanging deck 51,52 transition are swung, each piece of limit support 41,42 one end are solid
Be scheduled on door leaf 2, the other end to the top bending of movable hanging deck 51,52 formed an acute angle, can also automatically by movable hanging deck 51,
52 rebound initial position, wait use next time, and in specific design, the bending acute angle of limit support 41,42 is generally 45-60
Degree, using effect is preferable, and the length for limiting the dogleg section of support 41,42 is not shorter than 15cm generally, and swing transition is avoided to hit
Wound, can keep longer service life.When explosion wave prevention active door is not rushed wave impact, movable hanging deck 51,52 Gravitative Loads with
Door leaf 2 keeps a subtended angle θ to open to guarantee that ventilation hole 1 is divulged information, and subtended angle θ is 8 °~20 °；When shock wave reaches, movable hanging deck
51, it 52 is closed rapidly under shock wave and covers ventilation hole 1, prevent shock wave from passing through.
For easy to process, installation, second hanging deck 52 is in mirror symmetry about door leaf 2 with hanging deck 51.
Preferably,
The hanging deck 51 or 52 upper end of the second hanging deck respectively pass through at least one pivoting support 6 and door leaf 2 is hinged.
The pivoting support 6 includes that the firm banking 61 being fixed on door leaf 2 and one end are connected to admittedly by hinged shaft 63
Determine on pedestal 61, the other end is fixedly connected on the rotation connecting bracket 62 of 52 upper end of hanging deck 51 or the second hanging deck.
More preferably embodiment is that the firm banking 61 of the movable hanging deck of two pieces of the two sides of each ventilation hole 1 is right respectively
Claim setting, saves space, and mitigate the shearing of door body, improve its service performance.It then, can be by every a pair of of firm banking 61
It is fixedly connected by one group of fastener 7, saves standard component usage quantity, reduce cost.
The working principle of the utility model is as follows:
When engineering is not attacked by shock wave, explosion wave prevention active door of the invention is set to the hanging deck 51 in 2 outside of door leaf, sets
The second hanging deck 52 on the inside of door leaf 2 together, by gravity, keeps hanging deck 51 and the second hanging deck 52 remote with rotation connecting bracket 62
From door leaf 2, inside and outside air can pass through 1 free flow of ventilation hole.
When by by impact wave impact in engineering extroversion engineering, explosion wave prevention active door of the invention bears positive pressure impact.
At this point, the hanging deck 51 for being set to 2 outside of door leaf is quickly swung under the shock wave of ecto-entad to door leaf 2, with
Door leaf 2 is bonded, and ventilation hole 1 is completely enclosed, and prevents diffusion in impact wave direction engineering, plays the role of anti-positive pressure impact.
When engineering can be generated the weapon attacking of underbalance effect by such as warm induction etc, explosion wave prevention active door of the invention is first
It is to have shock wave by impacting in engineering extroversion engineering, the course of work of explosion wave prevention active door of the invention is as described above.
Then it can generate from the shock wave in engineering to outside engineering, i.e. underbalance effect.At this point, as shown in Fig. 2, of the invention
The hanging deck 51 that explosion wave prevention active door is set to 2 outside of door leaf is separated by being bonded with door leaf 2.The second hanging deck set on 2 inside of door leaf
52 under shock wave from inside to outside, quickly swings to door leaf 2, is bonded with door leaf 2, ventilation hole 1 is completely enclosed, is prevented
Technical interior air excess leaks, and plays the role of anti-negative pressure.
The underbalance effect that the setting of above structure generates warm induction (or being FAE. bomblet, air fuel explosive bomb, air fuel bullet),
With biggish help, because of the topology layout of the activity hanging deck, if in explosion wave prevention active door by positive pressure towards on the outside of door body
Dynamic hanging deck of working is impacted to the entire ventilation hole of door body outer side seal, and then blocks forward impact；When shock wave is warm induction
It generates, or the shock wave for making FAE. bomblet, air fuel explosive bomb, air fuel bullet generate, wave valve nearby can generate underbalance effect, that is, produce
Raw reverse impact wave is mounted on the movable hanging deck of the inside disposed at air vent of door body under the action of negative pressure, the ventilation of Xiang Menti at this time
Hole rotatory sealing ventilation hole.The structure is set on the main purpose for being different from door body ventilation hole unilateral side setting activity hanging deck, answers
To the underbalance effect for generating warm induction and generating, play the role of good blast protection to air defense basement, and it is existing unilateral
Only the wave valve of anti-positive pressure increases a safeguard function.And the explosion wave prevention active door better protecting effect of the utility model.
It is a kind of can the impact of anti-negative pressure explosion wave prevention active door, can also be designed to each piece of movable hanging deck 51 cover two and
More than two ventilation holes 1 so that overall structure more simplifies, while also facilitating installation and manufacture.
What the embodiments of the present invention were announced is preferred embodiment, and however, it is not limited to this, the common skill of this field
Art personnel understand the spirit of the utility model easily according to above-described embodiment, and make different amplification and variation, but as long as
The spirit of the utility model is not departed from, it is all within the protection scope of the present utility model.
Claims (6)
1. one kind can the impact of anti-negative pressure explosion wave prevention active door, the door leaf (2) including having at least one ventilation hole (1), Yi Jishe
Hanging deck (51) on the outside of door leaf (2), hingedly, lower end is far from door leaf (2), hanging deck for hanging deck (51) upper end and door leaf (2)
(51) when lower end is close to door leaf (2), ventilation hole (1) can all be covered, it is characterised in that:
Be additionally provided on the inside of the door leaf (2) the second hanging deck (52), the second hanging deck (52) upper end and door leaf (2) hingedly,
Lower end can all cover ventilation hole (1) when the second hanging deck (52) lower end is close to door leaf (2) far from door leaf (2).
2. explosion wave prevention active door according to claim 1, it is characterised in that:
It is additionally provided on the outside of the door leaf (2) after upper surface is located at the hanging deck (51) lower end surface and is swung for limiting hanging deck (51)
The limit support (41) of angle.
3. explosion wave prevention active door according to claim 2, it is characterised in that:
Upper surface is additionally provided on the inside of the door leaf (2) to be located at behind the second hanging deck (52) lower end surface for limiting the second hanging deck
(52) the second limit support (42) of swing angle.
4. according to claim 1 to explosion wave prevention active door described in one of 3, it is characterised in that:
Second hanging deck (52) is in mirror symmetry about door leaf (2) with hanging deck (51).
5. explosion wave prevention active door according to claim 1, it is characterised in that:
The hanging deck (51) or the second hanging deck (52) upper end respectively pass through at least one pivoting support (6) and door leaf (2) are hinged.
6. explosion wave prevention active door according to claim 5, it is characterised in that:
The pivoting support (6) includes that the firm banking (61) being fixed on door leaf (2) and one end are connected by hinged shaft (63)
On firm banking (61), the other end be fixedly connected on the rotation connecting bracket of hanging deck (51) or the second hanging deck (52) upper end
(62)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842655.3U CN209603794U (en) | 2018-11-09 | 2018-11-09 | It is a kind of can the impact of anti-negative pressure explosion wave prevention active door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821842655.3U CN209603794U (en) | 2018-11-09 | 2018-11-09 | It is a kind of can the impact of anti-negative pressure explosion wave prevention active door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209603794U true CN209603794U (en) | 2019-11-08 |
Family
ID=68395445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821842655.3U Active CN209603794U (en) | 2018-11-09 | 2018-11-09 | It is a kind of can the impact of anti-negative pressure explosion wave prevention active door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209603794U (en) |
-
2018
- 2018-11-09 CN CN201821842655.3U patent/CN209603794U/en active Active
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