CN204922053U - Civil air defense engineering uses airtight valve - Google Patents
Civil air defense engineering uses airtight valve Download PDFInfo
- Publication number
- CN204922053U CN204922053U CN201520601374.9U CN201520601374U CN204922053U CN 204922053 U CN204922053 U CN 204922053U CN 201520601374 U CN201520601374 U CN 201520601374U CN 204922053 U CN204922053 U CN 204922053U
- Authority
- CN
- China
- Prior art keywords
- pitman shaft
- valve plate
- valve
- valve body
- air defense
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a civil air defense engineering uses airtight valve, including the valve body of tube -shape, circular shape valve plate and the pitman shaft that the setting can be overturn in the valve body, be equipped with two coaxial shaft holes on the valve body, the pitman shaft is rotationally installed in the shaft hole, and the edge of valve plate is equipped with the sealing washer, the pitman shaft passes the centre of a circle of valve plate, still be equipped with two at least connecting rods on the pitman shaft, the edge of valve plate is equipped with circular slide rail, the one end of connecting rod is articulated with the pitman shaft, and the other end is equipped with the slider, and the slider is installed on the slide rail. The utility model discloses articulate a plurality of connecting rods very much on the pitman shaft, the connecting rod can provide even support to the valve plate, prevents the local emergence deformation of valve plate.
Description
Technical field
The utility model relates to a kind of civil air defense constructions and installations device, is specifically related to a kind of civil air defense constructions and installations airtight valve.
Background technique
Sealed valve industry is universal machine important branch, and sealed valve is the important component part in civil air defense constructions and installations, is mainly used in the cut-out of pipeline medium (water, air and oil product etc.), throttling, pressure regulation and the change flow direction etc.The quality of sealed valve quality directly affects normal, safe handling and the safeguard function of these devices, and plays vital effect.Current, putting into operation of national level, city-level key project, needs a large amount of valve products supporting with it; The tightness of sealed valve is the important symbol of quality of product, but the sealing configuration that existing linkage type sealed valve adopts usually is: at the coated seal ring of the external diameter of valve plate, when valve plate is closed, by seal ring, make between valve plate and valve body, to ensure good sealing.But the frequent opening and closing of sealed valve, can cause lacking the valve plate distortion supported, affect sealing effect.
Model utility content
In view of this, the utility model discloses a kind of airtight valve of not yielding, long service life.
The purpose of this utility model is achieved through the following technical solutions: a kind of civil air defense constructions and installations airtight valve, comprises the valve body of tubular, is arranged on valve plate and the pitman shaft of turnover circle in valve body; Valve body is provided with two coaxial axis holes, and pitman shaft is installed in rotation in axis hole, and valve plate is provided with seal ring, and described pitman shaft is through the center of circle of valve plate; Described pitman shaft is also provided with at least two connecting rods; The edge of described valve plate is provided with circular slide rail; One end and the pitman shaft of described connecting rod are hinged, and the other end is provided with slide block, and slide block is arranged on slide rail.
The utility model is hinged multiple connecting rod on pitman shaft especially, and connecting rod can provide uniform support to valve plate, prevents valve plate local from deforming.In addition, connecting rod of the present utility model can also rotate along slide rail, according to the support zone of the stressing conditions adjustment connecting rod of valve plate, can prevent valve plate local distortion because of overstress, distortion in actual use.Utilize bar linkage structure of the present utility model, effectively can improve the mechanical strength of valve plate, overcome the problem affecting airtight valve sealing effect in prior art because of valve plate distortion.In the utility model, the structure that valve body, valve plate, slide block, slide rail, seal ring etc. are not described in detail all can select any one existing techniques in realizing.
Further, described pitman shaft is set with slidably fixed block, described rod hinge connection is on fixed block; Fixed block is provided with locking through hole, is provided with locking nut in locking through hole.
Relative to being directly hinged on pitman shaft, the mode of rod hinge connection on fixed block can avoid the destruction to link rod shaft structure integrity, is conducive to the mechanical strength, the impact strength that improve pitman shaft.After suffering shock wave, likely there is slight deformation in valve, causes slide rail to be out of shape, and affects the rotation of connecting rod, adjustment.Therefore fixed block of the present utility model can slide on pitman shaft, by adjusting the position of fixed block, enabling the slide block on connecting rod adjust position with the slide rail by distortion, continuing to play the effect supporting valve plate.Meanwhile, the slide block of connecting rod is moved to the deformation position of slide rail, also help and reinforcement is carried out to deformation position, prevent this position from becoming stress concentration point and being out of shape further.After tightening locking nut, fixed block just can be fixed on a certain position of pitman shaft.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the new three-dimensional view of this practicality.
Fig. 3 is the sectional view of the utility model slide rail.
Fig. 4 is the sectional view of the utility model fixed block.
Embodiment
The utility model to be described in further detail below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that:
Embodiment 1
The present embodiment provides a kind of civil air defense constructions and installations airtight valve, as shown in Figure 1, Figure 2, Fig. 3, the valve body 1 comprising tubular, the valve plate 2 being arranged on turnover circle in valve body and pitman shaft 3; Valve body is provided with two coaxial axis holes 11, and pitman shaft is installed in rotation in axis hole, and the edge of valve plate is provided with seal ring 21, and described pitman shaft is through the center of circle of valve plate; Described pitman shaft is also provided with 3 two connecting rods 4; Described valve plate is also provided with circular slide rail 5; One end and the pitman shaft 3 of described connecting rod 4 are hinged, and the other end is provided with slide block 41, and slide block 41 is arranged on slide rail 5.
Further, as Fig. 4, described pitman shaft 3 is set with slidably fixed block 6, described rod hinge connection is on fixed block 6; Fixed block is provided with locking through hole 61, is provided with locking nut 62 in locking through hole.
In actual use, swivel link axle, just can make valve plate overturn, realize the keying of airtight valve.
Be more than wherein specific implementation of the present utility model, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these apparent replacement forms all belong to protection domain of the present utility model.Unspecified part, all can select any one existing techniques in realizing.
Claims (2)
1. a civil air defense constructions and installations airtight valve, comprises the valve body of tubular, is arranged on valve plate and the pitman shaft of turnover circle in valve body; Valve body is provided with two coaxial axis holes, and pitman shaft is installed in rotation in axis hole, and the edge of valve plate is provided with seal ring, it is characterized in that: described pitman shaft is through the center of circle of valve plate; Described pitman shaft is also provided with at least two connecting rods; Described valve plate is provided with circular slide rail; One end and the pitman shaft of described connecting rod are hinged, and the other end is provided with slide block, and slide block is arranged on slide rail.
2. civil air defense constructions and installations airtight valve according to claim 1, it is characterized in that: described pitman shaft is set with slidably fixed block, described rod hinge connection is on fixed block; Fixed block is provided with locking through hole, is provided with locking nut in locking through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601374.9U CN204922053U (en) | 2015-08-12 | 2015-08-12 | Civil air defense engineering uses airtight valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520601374.9U CN204922053U (en) | 2015-08-12 | 2015-08-12 | Civil air defense engineering uses airtight valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922053U true CN204922053U (en) | 2015-12-30 |
Family
ID=54971182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520601374.9U Expired - Fee Related CN204922053U (en) | 2015-08-12 | 2015-08-12 | Civil air defense engineering uses airtight valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922053U (en) |
-
2015
- 2015-08-12 CN CN201520601374.9U patent/CN204922053U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20170812 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |