CN208564386U - One kind dangles formula protective door - Google Patents

Abstract

The utility model relates to Technology for Civil Air Defence Projects fields, one kind is disclosed to dangle formula protective door, including door leaf, ventilation opening is offered on door leaf, and the valve for enclosed ventilation mouth is rotatably connected on door leaf, the cavity communicated with ventilation opening is offered in door leaf, cavity top is rotatably connected to rotating bar, filter screen is wound in rotating bar, filtering sieve bottom is fixed with the pouring weight with cavity sliding connection, is equipped with the releasing parts for discharging pouring weight when door leaf is hit on cavity inner wall.This programme utilizes new mechanical structure, valve is being rotatablely installed on door leaf so as to the enclosed ventilation mouth when being hit, cavity is opened up on door leaf again, and rotating bar is installed in cavity, is wound with filter screen in rotating bar, when door leaf is impacted, releasing parts discharge the pouring weight for being fixed on filtering sieve bottom, and pouring weight falls and pulls down filter screen from rotating bar, cover ventilation opening with this, the dust generated after explosion is filtered, dust pollution air is avoided.

Description

One kind dangles formula protective door

Technical field

The utility model relates to Technology for Civil Air Defence Projects field, in particular to one kind dangles formula protective door.

Background technique

Closed guard gate is exactly the door of people's protection works entrance, and explosion wave prevention active door is to be used in civil air defense constructions and installations in subject to air raid In the case where guarantee the protective ventilation equipment uninterruptedly divulged information in engineering, be ensure personnel's existence in position fortified engineering tunnel important One of safeguard, general to be mounted on closed guard gate using the formula structure that dangles, the formula that also known as dangles protective door.The formula that dangles protective door In, valve with have a certain degree on door leaf when opening to divulge information with gate fan shape, when protective door is by shock wave, air-flow The shop front for acting on valve causes valve to be pressed on door leaf the ventilation opening on door leaf is covered and sealed, reaches the effect of explosion-wave-preventing Fruit.Currently, the Chinese utility model patent that notification number is CN206386033U discloses one kind and dangles formula explosion wave prevention active door, including Bottom plate with blow vent and the plate that dangles being rotatably connected on the bottom plate, the blow vent are integrally set with the plate that dangles Metal partition grid are equipped with, the gas port for air circulation is provided in the metal partition grid, is provided with gold in the gas port Belong to silk screen screen.

Above-mentioned technical proposal is arranged metal partition grid and wire mesh screen in venthole, has blow vent good Shielding properties, electromagnetic pulse can be prevented, and the fastness of metal partition grid is higher, be not susceptible to be broken, and wire Screen grid be arranged in the lesser gas port of area, single metal silk screen screen it is smaller, be not susceptible to fracture the phenomenon that, effectively Ground maintains the shielding action to electromagnetic pulse.But it is above-mentioned dangle formula explosion wave prevention active door after impact due to there is no high pressure gas Stream acts on valve, and the plate that dangles will receive gravity and open and close again, but the dust of generation, smoke of gunpowder meeting after explosion simultaneously It spreads in the inlet of entire antiaircraft tunnel and is entered inside antiaircraft tunnel out of ventilation hole, cause air pollution.For this purpose, urgently It needs one kind to dangle formula protective door, there is filtration, the dust that can stops generation after explosion passes through ventilation opening.

Utility model content

In view of the deficienciess of the prior art, dangling formula protective door the purpose of the utility model is to provide one kind, had Filter effect, the dust for avoiding explosion from generating later pollute air by ventilation opening.

The above-mentioned technical purpose of the utility model have the technical scheme that one kind dangle formula protection Door, including door leaf offer ventilation opening on the door leaf, the work for closing the ventilation opening are rotatably connected on the door leaf Door, offers the cavity communicated with the ventilation opening in the door leaf, and the cavity top is rotatably connected to rotating bar, and described turn Filter screen is wound in lever, the filtering sieve bottom is fixed with the pouring weight with cavity sliding connection, the cavity inner wall On the releasing parts that the pouring weight is discharged when the door leaf is hit are installed.

By using above-mentioned technical proposal, valve is being rotatablely installed on door leaf so as to the enclosed ventilation mouth when being hit, and Cavity is opened up on door leaf, and rotating bar is installed in cavity, is wound with filter screen in rotating bar, when door leaf is impacted, is released It puts component to discharge the pouring weight for being fixed on filtering sieve bottom, pouring weight falls and pulls down filter screen from rotating bar, covers with this Ventilation opening is filtered the dust generated after explosion, avoids dust pollution air.

The utility model is further arranged to, and the releasing parts include that one end is turned over what the cavity inner wall was rotatablely connected Plate and the resilient key being mounted on the downside of the turnover panel offer the receiving for resilient key insertion on the cavity inner wall Hole, the elasticity pin end are rotatably connected to connecting rod, are rotatablely connected in the middle part of the connecting rod with the ventilation opening inner wall.

By using above-mentioned technical proposal, releasing parts are arranged to the combination of turnover panel, resilient key and connecting rod, turnover panel installation To support pouring weight on the downside of pouring weight, and turnover panel and cavity inner wall are rotatablely connected, and the receiving hole in resilient key and cavity sidewalls is inserted It connects, valve closes ventilation opening after being hit, and valve pushes connecting rod to rotate in the middle part of the connecting rod at this time, and interlinking lever end is by resilient key Be pushed into receiving hole, the follow the string support of pin of turnover panel is overturn under the effect of gravity, at this time pouring weight fall under the effect of gravity by Filter screen arranges, and ensures that protective door can play a role in filtering after being hit with this.

The utility model is further arranged to, and is offered respectively at the top of the ventilation opening and at the top of the valve for accommodating The first groove and the second groove of the connecting rod after rotation.

By using above-mentioned technical proposal, the first groove is opened up at the top of ventilation opening, and the second groove is opened up at the top of valve, After valve closes ventilation opening, connecting rod is around its middle part rotation, and the setting of the first groove and the second groove is so that rod surface and sky Cavity wall is concordant, avoids connecting rod protrusion and influences pouring weight whereabouts, so that it is guaranteed that filter screen is smoothly unfolded.

The utility model is further arranged to, and the resilient key inner wall is hollow and is equipped with spring, the spring one end with The receiving bore ends are fixed.

By using above-mentioned technical proposal, spring is installed in resilient key, spring one end is fixed with resilient key, the other end with It accommodates bore ends to fix, when valve is closed, resilient key is pushed into receiving hole by connecting rod, and spring is compressed at this time；When under pouring weight fall behind, Spring in compressive state resets connecting rod, and interlinking lever end and filter screen contradict at this time, so that filter screen has tension, enhancing The impact resistance of filter screen.

The utility model is further arranged to, and offers sliding slot on the cavity inner wall, the weight ends be fixed with The slider of the sliding slot sliding cooperation.

By using above-mentioned technical proposal, sliding slot is opened up on cavity inner wall, and in the fixed slider of weight ends, we Case is oriented to the whereabouts of pouring weight using the sliding cooperation of slider and sliding slot, to avoid filter screen skew and influence filtering Effect.

The utility model is further arranged to, and is fixed with sealing strip on the sliding slot inner wall.

By using above-mentioned technical proposal, sealing strip is set on sliding slot inner wall, sealing strip will be between filter screen and sliding slot Gap plugging, avoid dust from there into further promote filter effect.

The utility model is further arranged to, and the sliding slot bottom level is lower than the ventilation opening bottom level.

By using above-mentioned technical proposal, sliding slot is extended under ventilation opening bottom, ensures that filter screen will divulge information with this Mouth is completely enclosed, and dust is avoided to enter from ventilation opening bottom, so that it is guaranteed that comprehensive covering of filter screen, promotes filter effect.

The utility model is further arranged to, and the reset components for resetting the filter screen are equipped on the door leaf, The reset components include with the co-axially fixed driven gear of the rotating bar, offer on the door leaf and communicated with the cavity Strip groove, be rotatably connected to the driving gear engaged with the driven gear in the strip groove.

By using above-mentioned technical proposal, strip groove is opened up on door leaf, and is arranged by driving gear and driven gear group At reset components, driving gear is rotatably connected in strip groove, and driven gear is coaxially fixed on rotating bar one end, and driving tooth Wheel is engaged with driven gear, and when driving gear rotation, driven gear rotates with it and rotating bar is driven to rotate, will filtering with this Net volume is wound in rotating bar, is realized the reset response of filter screen, is conveniently reused.

The utility model is further arranged to, and runner assembly, the rotation are equipped between the valve and the door leaf Component includes the fixing seat fixed with the door leaf, and the fixing seat end is rotatably connected to rotor plate, the rotor plate bottom It is fixed with connection sheet, the connection sheet is fixed with the valve surface.

By using above-mentioned technical proposal, the rotatable parts being made of fixing seat, rotor plate and connection sheet are set, using even Valve and rotor plate are fixed in contact pin, and will be hinged with fixing seat end at the top of rotor plate, are realized between valve and door leaf with this Rotation connection, and fixing seat setting so that valve center of gravity be biased to door leaf on the outside of, automatically opened after being hit convenient for valve, So that it is guaranteed that ventilation.

The utility model is further arranged to, and limit assembly is equipped on the door leaf, and the limit assembly includes and institute The fixed fixed link of door leaf is stated, the fixed boom end is fixed with limit plate.

By using above-mentioned technical proposal, the limit assembly being made of fixed link and gag lever post is installed on door leaf, it is fixed Bar is fixed below ventilation opening, and limit plate is fixed on fixed boom end and limited the rotational angle of valve, limited with this The range that valve is opened reduces the air inflow of filter screen, avoids so that air and dust enter ventilation opening on the downside of ventilation opening Dust excessively blocks filter screen, so that it is guaranteed that the normal use of filter screen.

In conclusion the utility model has the following beneficial effects:

1, this programme is being rotatablely installed valve so as to the enclosed ventilation mouth when being hit on door leaf, and sky is opened up on door leaf Chamber, when door leaf is impacted, releasing parts in cavity will be fixed on the pouring weight release of filtering sieve bottom, pouring weight fall and incite somebody to action Filter screen is pulled down from rotating bar, covers ventilation opening with this, is filtered to the dust generated after explosion, avoids dust pollution empty Gas；

2, sealing strip is set on sliding slot inner wall, and the gap plugging between filter screen and sliding slot is avoided dust by sealing strip From there into further promote filter effect；

3, strip groove is opened up on door leaf, and the reset components being made of driving gear and driven gear, driving tooth are set Wheel is rotatably connected in strip groove and engages with the driven gear for being coaxially fixed on rotating bar one end, when driving gear rotation, Driven gear rotates with it and rotating bar is driven to rotate, with this by filter screen in rotating bar, realize the reset of filter screen Effect, conveniently reuses.

Detailed description of the invention

Fig. 1 is the overall structure diagram of embodiment；

Fig. 2 is the schematic diagram of the section structure of ventilation opening in embodiment；

Fig. 3 is the structural schematic diagram of reset components in embodiment；

Fig. 4 is structural schematic diagram when filtering net unfolding in embodiment；

Fig. 5 is the enlarged diagram in Fig. 2 at A.

In figure: 1, door leaf；11, ventilation opening；111, the first groove；12, valve；121, the second groove；13, cavity；14, sliding Slot；141, sealing strip；2, runner assembly；21, fixing seat；22, rotor plate；23, connection sheet；3, filter assemblies；30, rotating bar； 31, filter screen；32, pouring weight；33, slider；34, releasing parts；341, turnover panel；342, resilient key；343, receiving hole；344, bullet Spring；345, connecting rod；35, reset components；351, driving gear；352, driven gear；4, limit assembly；41, fixed link；42, it limits Position plate.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

The formula protective door as shown in Figure 1, one kind dangles, including door leaf 1 successively offer three along its short transverse on door leaf 1 A ventilation opening 11, ventilation opening 11 are rectangle, for being connected to protective door two sides, it is ensured that ventilation.

It is also equipped with the valve 12 for the enclosed ventilation mouth 11 when being hit on door leaf 1, leads between door leaf 1 and valve 12 It crosses runner assembly 2 and realizes connection, runner assembly 2 includes fixing seat 21, rotor plate 22 and connection sheet 23.Fixing seat 21 is mounted on logical 11 upside of air port, one end are fixedly connected with door leaf 1, and the top of the other end and rotor plate 22 is hinged.Rotor plate 22 is stripe board Shape structure, bottom and connection sheet 23 are fixed, are bolted between connection sheet 23 and valve 12.When valve 12 is impacted When, valve 12 rotates up to enclosed ventilation mouth 11 around fixing seat 21 and 22 hinged place of rotor plate, due to 21 end of fixing seat and door 1 surface is fanned with certain distance, the center of gravity of valve 12 is affected, the valve 12 after impacting under the effect of gravity with ventilation opening 11 separation, the ventilation of 1 two sides of door leaf is ensured with this.

As shown in Fig. 2, being also equipped with limit assembly 4 below ventilation opening 11, limit assembly 4 includes fixed link 41 and limit plate 42.41 one end of fixed link and door leaf 1 are fixed, and limit plate 42 is tiltedly mounted on 41 other end of fixed link to turn valve 12 Dynamic angle is limited.

As shown in Fig. 2, offering cavity 13 in door leaf 1,13 area of section of cavity is greater than 11 area of section of ventilation opening, and empty Chamber 13 is communicated with ventilation opening 11.Filtering group for covering ventilation opening 11 after door leaf 1 is impacted is installed at the top of cavity 13 Part 3, filter assemblies 3 include rotating bar 30, filter screen 31, pouring weight 32, releasing parts 34 and reset components 35.As shown in connection with fig. 3, Rotating bar 30 is mounted on 13 top of cavity, and both ends and 13 inner wall of cavity are rotatablely connected.As shown in connection with fig. 4, filter screen 31 is by height Strength nylon silk weaves, in rotating bar 30.Pouring weight 32 is made by lead, and is in cylindrical, is fixed on filter screen 31 Bottom, and the length of pouring weight 32 is less than the width of filter screen 31.Reset components 35 include driving gear 351 and driven gear 352, Wherein, driven gear 352 is mounted on 30 one end of rotating bar, coaxial fixed with rotating bar 30.1 upper surface of door leaf with driven gear 352 corresponding positions offer strip groove (not shown), and strip groove is communicated with cavity 13, and driving gear 351 is mounted on bar shaped In slot.It is rotatablely connected in the middle part of driving gear 351 by shaft and strip groove two sides side wall, and driving gear 351 and driven gear 352 engagements.When driving gear 351 rotates, driven gear 352 rotates with it and rotating bar 30 is driven to rotate, will filtering with this Net 31 is in rotating bar 30.

As shown in Fig. 2,5, releasing parts 34 include turnover panel 341, resilient key 342, spring 344 and connecting rod 345.Turnover panel 341 Rectangular plate structure, one side and 13 inner wall of cavity are hinged, when turnover panel 341 is horizontal, another side and 13 other side of cavity Inner wall is close.When turnover panel 341 is horizontal, on the downside of 13 inner wall of cavity on offer receiving hole 343, resilient key 342 is mating In receiving hole 343.342 inner hollow of resilient key, spring 344 are mounted in it, and 344 one end of spring and resilient key 342 are solid Fixed, the other end is fixed with 343 end of receiving hole.One end that 345 one end of connecting rod and resilient key 342 are exposed at receiving hole 343 rotates Connection, other end inclination extends to ventilation opening 11 close to the side of valve 12, and 345 middle part of connecting rod is rotated with 11 inner wall of ventilation opening Connection.When door leaf 1 is impacted, valve 12 closes ventilation opening 11, and valve 12 pushes connecting rod 345 in connecting rod 345 at this time Resilient key 342 is pushed into receiving hole 343 by portion's rotation, 345 end of connecting rod, and what turnover panel 341 followed the string pin 342 is supported on gravity The lower overturning of effect, pouring weight 32 falls arrange filter screen 31 under the effect of gravity at this time, ensures that protective door is being hit with this After can play a role in filtering.

The first groove 111 is offered at the top of ventilation opening 11, and the second groove 121, the first groove 111 are offered at the top of valve 12 Connecting rod 345 is accommodated wherein with when the splicing of the second groove 121.After valve 12 closes ventilation opening 11, connecting rod 345 is around its middle part Rotation, the first groove 111 so that 345 surface of connecting rod is concordant with 13 inner wall of cavity, avoid connecting rod with the setting of the second groove 121 345 protrude and influence the whereabouts of pouring weight 32, so that it is guaranteed that filter screen 31 is smoothly unfolded.Cunning is also provided on the inner wall of 13 two sides of cavity Slot 14, sliding slot 14 extend along 1 short transverse of door leaf.In conjunction with shown in 4,32 both ends of pouring weight are fixed with slider 33, slider 33 with The sliding cooperation of sliding slot 14.And sealing strip 141 is fixed on 14 inner wall of sliding slot, sealing strip 141 is for blocking filter screen 31 and sliding slot Gap between 14.

When the present embodiment is in use, when door leaf 1 is impacted, valve 12 closes ventilation opening 11, and valve 12 pushes away at this time Dynamic connecting rod 345 rotates in the middle part of connecting rod 345, and resilient key 342 is pushed into receiving hole 343 by 345 end of connecting rod, and turnover panel 341 loses The support of resilient key 342 is overturn under the effect of gravity, and pouring weight 32 falls under the effect of gravity and drives slider 33 along cunning at this time Slot 14 moves down, and constantly drop-down drops down onto 13 bottom of cavity up to pouring weight 32 to filter screen 31 from rotating bar 30 under the drive of pouring weight 32, Filter screen 31 covers ventilation opening 11 at this time, is filtered to the dust generated after explosion, avoids dust pollution air.

The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (10)

1. The formula protective door 1. one kind dangles, including door leaf (1) offer ventilation opening (11) on the door leaf (1), the door leaf (1) On be rotatably connected to valve (12) for closing the ventilation opening (11), it is characterized in that: being offered in the door leaf (1) and institute The cavity (13) that ventilation opening (11) communicates is stated, is rotatably connected to rotating bar (30), the rotating bar at the top of the cavity (13) (30) it is wound on filter screen (31), filter screen (31) bottom is fixed with the pouring weight with the cavity (13) sliding connection (32), the releasing parts that the pouring weight (32) are discharged when the door leaf (1) is hit are installed on cavity (13) inner wall (34)。
2. The formula protective door 2. one kind according to claim 1 dangles, it is characterized in that: the releasing parts (34) include one end with The turnover panel (341) of cavity (13) the inner wall rotation connection and the resilient key (342) being mounted on the downside of the turnover panel (341), The receiving hole (343) for the resilient key (342) insertion, resilient key (342) end are offered on cavity (13) inner wall Portion is rotatably connected to connecting rod (345), is rotatablely connected in the middle part of the connecting rod (345) with the ventilation opening (11) inner wall.
3. The formula protective door 3. one kind according to claim 2 dangles, it is characterized in that: the ventilation opening (11) top and the work The first groove (111) and the second groove for accommodating the connecting rod (345) after rotating are offered at the top of door (12) respectively (121)。
4. The formula protective door 4. one kind according to claim 2 dangles, it is characterized in that: the resilient key (342) inner wall is hollow simultaneously It is equipped with spring (344), described spring (344) one end is fixed with the receiving hole (343) end.
5. The formula protective door 5. one kind according to claim 1 dangles, it is characterized in that: offering cunning on the cavity (13) inner wall Slot (14), pouring weight (32) both ends are fixed with the slider (33) with the sliding slot (14) sliding cooperation.
6. The formula protective door 6. one kind according to claim 5 dangles, it is characterized in that: being fixed on the sliding slot (14) inner wall close Strip of paper used for sealing (141).
7. The formula protective door 7. one kind according to claim 5 dangles, it is characterized in that: the sliding slot (14) bottom level is lower than institute State ventilation opening (11) bottom level.
8. The formula protective door 8. one kind according to claim 1 dangles, it is characterized in that: being equipped on the door leaf (1) for multiple The reset components (35) of the position filter screen (31), the reset components (35) include co-axially fixed with the rotating bar (30) Driven gear (352) offers the strip groove communicated with the cavity (13), rotation in the strip groove on the door leaf (1) It is connected with the driving gear (351) engaged with the driven gear (352).
9. The formula protective door 9. one kind according to claim 1 dangles, it is characterized in that: the valve (12) and the door leaf (1) Between be equipped with runner assembly (2), the runner assembly (2) includes the fixing seat (21) fixed with the door leaf (1), described solid Reservation (21) end is rotatably connected to rotor plate (22), and rotor plate (22) bottom is fixed with connection sheet (23), the connection Piece (23) is fixed with the valve (12) surface.
10. The formula protective door 10. one kind according to claim 1 dangles, it is characterized in that: being equipped with limit group on the door leaf (1) Part (4), the limit assembly (4) include the fixed link (41) fixed with the door leaf (1), and fixed link (41) end is fixed There are limit plate (42).