CN205618686U - Manual airtight valve - Google Patents

Abstract

The utility model discloses a manual airtight valve, including valve body, both ends rotate connect in the main shaft of valve body, valve gap, be equipped with on the valve gap fixed connection in the fixing base of valve gap terminal surface, be equipped with on the fixing base rotate connect in the rotation seat on fixing base top, the front end that rotates the seat is equipped with and is used for connecting the elastic component of valve gap and rear end fixed connection in the main shaft, when the valve gap is closed the elastic component compression just rotate seat rear end butt in the valve gap terminal surface. The utility model has the advantages of it is following and effect: the new mechanical structure of this scheme utilization adopts above -mentioned structure, and indoor pressure was greater than outdoor pressure when the valve was closed, and valve gap upset and elasticity of compression spare make valve gap and valve body form the clearance and ventilate, and when indoor pressure was lighter than the elasticity of elastic component to the pressure of valve gap, the valve gap recovered to encapsulated situation, has reached the effect of the indoor pressure of automatically regulated.

Description

A kind of manual sealed valve

Technical field

This utility model relates to people's air defense field of ventilation equipment, particularly to a kind of manual sealed valve.

Background technology

Manual sealed valve is a kind of defense equipment, is arranged on pipeline horizontally or vertically, changes air flow process, it is adaptable to people's air defense, defense and commercial industry journey medium are on the ventilation of air and air draft pipeline.

The Chinese patent " DMF hand-electric double link sealed valve " of Publication No. CN202691234U discloses a kind of DMF hand-electric double link sealed valve, including: valve body, valve gap, it is connected by an actuating device between described valve body and valve gap, connect on described actuating device and have YE on the other hand, described actuating device includes main shaft, rotation seat, fixed arm, described main shaft connects described valve body two ends, described rotation seat one end is fixing with valve gap to be connected, the other end is connected with described main shaft, described fixed arm one end is fixing with described valve body to be connected, the other end is flexibly connected with described rotation seat, described main shaft penetrates described fixed arm body, it is provided with between described hand-electric executor and main shaft and is in transmission connection by stem gear.

But after this manual sealed valve has the disadvantage in that valve closing, valve gap and rotation seat are fixed by fixed arm and main shaft, when indoor pressure is bigger, it is necessary to opened valve gap by sending someone, wait pressure normal after manual-lock again, operation complexity, not very convenient.

Utility model content

The purpose of this utility model is to provide a kind of manual sealed valve, has the effect that can be automatically adjusted indoor pressure.

Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of manual sealed valve, it is rotationally connected with the main shaft of described valve body, valve gap including valve body, two ends, described valve gap is provided with the fixing seat being fixedly connected on described valve gap end face, described fixing seat is provided with the rotation seat being rotationally connected with described fixing seat top, the front end of described rotation seat is provided with the elastic component for connecting described valve gap and rear end is fixedly connected on described main shaft, and during described valve gap Guan Bi, the compression of described elastic component and described rotation seat rear end are connected to described valve gap end face.

By using technique scheme, when rotating main shaft, the rotation seat being fixedly connected on main shaft rotates with main shaft simultaneously, rotation seat front end becomes big with the distance of valve gap end face, the elastic component making connection rotation seat front end and valve gap is stretched generation elastic force, and owing to fixing seat top is rotationally connected with on rotation seat, fixing seat is fixedly connected on valve gap, the elastic force that elastic component produces makes valve gap rotate around fixing seat top together with fixing seat, thus opens the valve gap of manual sealed valve；When backwards rotation main shaft, valve gap closes, and elastic component is compressed generation elastic force, makes valve gap have the trend downwardly turned over, and owing to rotation seat rear end is connected to valve gap end face, makes valve gap be in poised state, so that valve Guan Bi；When valve is in closure state, main shaft, rotation seat is locked by the hand switch on manual sealed valve, when indoor pressure is more than the pressure of outdoor, elastic component is made to continue to be compressed, valve gap rotates, valve gap end face leaves rotation seat rear end and forms gap between edge and valve body, indoor air calking gap flows out, when indoor pressure reduces, indoor pressure suffered by valve gap is less than the elastic force of elastic component, turn round under the effect of elastic component, valve gap end face is connected to rotation seat rear end, valve gap Guan Bi is made to reach the state sealed, thus reach to be automatically adjusted the effect of indoor pressure.

Of the present utility model it is further arranged to: described rotation seat is provided with hole, location, and described fixing seat is provided with the spacing hole being coaxially distributed with hole, described location, and described rotation seat is provided with and sequentially passes through hole, described location, the gag lever post of described spacing hole.

By using technique scheme, after gag lever post passes hole, location and spacing hole, the top of fixing seat can rotate with gag lever post for axis, drives the rotation of valve gap, it is achieved the keying of valve.

Of the present utility model it is further arranged to: during described valve gap Guan Bi, described elastic component is perpendicular to described valve gap end face.

By using technique scheme, when valve gap is by room pressure, making elastic component deform upon, valve gap upset forms gap with valve body, makes room air flow out, and when indoor pressure reduces, valve rod resets under the effect of elastic component, returns to the state sealed.

Of the present utility model being further arranged to: described elastic component is spring, described spring one end is connected to the front end of described rotation seat and the other end is fixed on described valve gap.

By using technique scheme, spring is connected to rotation seat front end and valve gap, makes elastic component to stretch and can compress, and during stretching, elastic force drives valve gap upset, during compression, valve gap end face is connected to rotation seat rear end by elastic force, reaches the effect of the manual sealed valve of valve bonnet seal.

Of the present utility model it is further arranged to: described fixing seat is fixedly connected on described bonnet central.

By using technique scheme, the space opened when valve gap rotates with fixing seat is bigger, and when making manual sealed valve open, ventilation effect is more preferable.

Of the present utility model it is further arranged to: described fixing seat is welded in described valve gap end face.

By using technique scheme, fixing seat is connected more firm with valve gap, and technique is simple, easy to make.

Of the present utility model it is further arranged to: described main shaft is fed through and in interference fit with described rotation seat rear end.

By using technique scheme, during main axis, rotation seat is with main axis, and then drives fixing seat and valve gap, it is achieved the folding of valve gap and closedown.

Of the present utility model it is further arranged to: described main axis parallel is arranged at above described valve gap end face.

By using technique scheme, the rotational of valve gap rotates along the axis being parallel to valve gap end face.

Of the present utility model it is further arranged to: described valve body is provided with the bearing being socketed on described main shaft.

By using technique scheme, main shaft is connected to bearing inner race, and bearing outer ring is fixed on valve body, makes main shaft can rotate relative to valve body.

Of the present utility model being further arranged to: described valve gap end face is provided with the stopper slot of described valve interior wall, sliding is arranged at the position limiting slide block in described stopper slot, described valve interior wall is provided with the limited impression for described position limiting slide block front end grafting.

By using technique scheme, when the manual sealed valve of needs part locks, position limiting slide block front end edge stopper slot is slipped in limited impression, makes valve gap can not rotate in valve body, the position of locking valve gap, thus realize thoroughly locking the effect of manual sealed valve.

In sum, this utility model has the advantages that use elastic component is connected to described valve gap, pushes directly on valve gap in an emergency situation, makes valve gap overturn, it is achieved air ventilation in emergency circumstances；Manual sealed valve can be automatically adjusted indoor pressure, it is achieved convenient and swift during operation, again can be the most locked by valve gap with position limiting slide block, it is achieved the thorough sealing of manual sealed valve, uses flexibly, wide adaptability.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is internal structure schematic diagram of the present utility model；

Fig. 3 is the annexation schematic diagram between fixing seat of the present utility model, rotation seat；

Fig. 4 is the annexation schematic diagram between main shaft of the present utility model, bearing；

Fig. 5 is cross-sectional view of the present utility model.

In figure: 1, valve body；2, valve gap；3, main shaft；4, fixing seat；41, spacing hole；5, rotation seat；51, hole, location；6, elastic component；7, gag lever post；8, bearing；9, stopper slot；91, position limiting slide block；10, limited impression.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail.

Specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.

A kind of manual sealed valve, as shown in Figure 1, including valve body 1, circular valve gap 2, double link switch, as shown in Figure 2, switch is provided with and is rotationally connected with valve body 1 and is parallel to the main shaft 3 of valve body 1 end face, as shown in Figure 4, is provided with bearing 8 in valve body 1, bearing 8 outer ring is fixed in valve body 1, and bearing 8 inner ring is sheathed on main shaft 3 and bearing 8 inner ring is in interference fit with main shaft 3.As in figure 2 it is shown, be arranged with the rotation seat 5 of fixing connection in the middle part of main shaft 3, rotation seat 5 rotates with main shaft 3 in interference fit with main shaft 3, rotation seat 5 simultaneously.

The fixing seat 4 being welded in valve gap 2 it is provided with in the middle part of valve gap 2, fixing seat 4 is perpendicular to valve gap 2 end face, fixing seat 4 top is rotationally connected with on rotation seat 5, as shown in Figure 3, rotation seat 5 is provided with hole 51, location, the fixing spacing hole 41 being provided with coaxial distribution, rotation seat 5 is provided with and is fed through hole 51, location and the gag lever post 7 of spacing hole 41 successively；As in figure 2 it is shown, rotation seat 5 front end is provided with an elastic component 6, elastic component 6 is spring, spring one end is connected to rotation seat 5 front end, and neck one end is fixedly connected on valve gap 2 end face, when valve gap 2 closes, spring is compressed and is perpendicular to valve gap 2 end face, and the end face of valve gap 2 is connected to the rear end of rotation seat 5.

As it is shown in figure 5, be provided with the stopper slot 9 of valve body 1 inwall on the end face of valve gap 2, in stopper slot 9, sliding is provided with position limiting slide block 91, and valve body 1 inwall is provided with the limited impression 10 for the grafting of described position limiting slide block 91.

As shown in Figures 2 to 3, when opening valve gap 2, rotating spindle 3, rotation seat 5 rotates with main shaft 3, and rotation seat 5 front end and valve gap 2, apart from becoming big, make spring be stretched；Owing to fixing seat 4 bottom welding is on valve gap 2, top is rotatably connected on rotation seat 5 by gag lever post 7, and the elastic force that spring deformation produces makes valve gap 2 and fixing seat 4 rotate along gag lever post 7 for axis, thus realizes the upset of valve gap 2, makes valve gap 2 open；When closing valve gap 2, counter-rotating main shaft 3, spring is compressed, and makes valve gap 2 reverse flip, when valve gap 2 end face is connected to rotation seat 5 rear end, makes valve gap 2 be in poised state, makes valve gap 2 be parallel to valve body 1 cross section, is sealed by valve body 1；When intraventricular pressure powerful in outdoor pressure time, spring is compressed, and valve gap 2 upset forms gap with valve body 1 inwall, makes the gas of indoor flow out pressure and reduces；When indoor pressure is reduced to a certain degree, when pressure to valve gap 2 is less than the elastic force of spring, valve gap 2 reverse flip is to being parallel to valve body 1 cross section, and valve gap 2 end face is connected to rotation seat 5 rear end, manual sealed valve is in airtight state, thus realizes being automatically adjusted the effect of indoor pressure；When position limiting slide block 91 front end is slipped in limited impression 10, being locked the position of valve gap 2, the most manual sealed valve locks.

Claims (10)

1. a manual sealed valve, including valve body (1), two ends are rotationally connected with the main shaft (3) of described valve body (1), valve gap (2), it is characterized in that: described valve gap (2) is provided with the fixing seat (4) being fixedly connected on described valve gap (2) end face, described fixing seat (4) is provided with the rotation seat (5) being rotationally connected with described fixing seat (4) top, the front end of described rotation seat (5) is provided with the elastic component (6) for connecting described valve gap (2) and rear end is fixedly connected on described main shaft (3), during described valve gap (2) Guan Bi, described elastic component (6) compression and described rotation seat (5) rear end are connected to described valve gap (2) end face.

The manual sealed valve of one the most according to claim 1, it is characterized in that: described rotation seat (5) is provided with hole, location (51), described fixing seat (4) is provided with the spacing hole (41) of distribution coaxial with hole, described location (51), and described rotation seat (5) is provided with the gag lever post (7) sequentially passing through hole, described location (51), described spacing hole (41).

The manual sealed valve of one the most according to claim 2, it is characterised in that: during described valve gap (2) Guan Bi, described elastic component (6) is perpendicular to described valve gap (2) end face.

The manual sealed valve of one the most according to claim 3, it is characterised in that: described elastic component (6) is spring, and described spring one end is connected to the front end of described rotation seat (5) and the other end is fixed on described valve gap (2).

The manual sealed valve of one the most according to claim 4, it is characterised in that: described fixing seat (4) is fixedly connected on described valve gap (2) center.

The manual sealed valve of one the most according to claim 5, it is characterised in that: described fixing seat (4) is welded in described valve gap (2) end face.

The manual sealed valve of one the most according to claim 6, it is characterised in that: described main shaft (3) is fed through and in interference fit with described rotation seat (5) rear end.

The manual sealed valve of one the most according to claim 7, it is characterised in that: described main shaft (3) is set in parallel in above described valve gap (2) end face.

The manual sealed valve of one the most according to claim 8, it is characterised in that: described valve body (1) is provided with the bearing (8) being socketed on described main shaft (3).

The manual sealed valve of one the most according to claim 9, it is characterized in that: the position limiting slide block (91) that described valve gap (2) end face is provided with the stopper slot (9) of described valve body (1) inwall, sliding is arranged in described stopper slot (9), described valve body (1) inwall is provided with the limited impression (10) for described position limiting slide block (91) front end grafting.