CN204493821U - The two-way ventilation pressure-reducing balancing valve of self adaption - Google Patents
The two-way ventilation pressure-reducing balancing valve of self adaption Download PDFInfo
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- CN204493821U CN204493821U CN201520170252.9U CN201520170252U CN204493821U CN 204493821 U CN204493821 U CN 204493821U CN 201520170252 U CN201520170252 U CN 201520170252U CN 204493821 U CN204493821 U CN 204493821U
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- way ventilation
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Abstract
The utility model discloses the two-way ventilation pressure-reducing balancing valve of a kind of self adaption, comprise spool, vavle shelf, valve casing, valve gap, described spool comprises upper valve core and lower valve core, described upper valve core is placed on upper valve base, described lower valve core is placed on lower valve base, described upper valve base, lower valve base are connected with described vavle shelf, and described vavle shelf is connected with described valve casing, and described vavle shelf is connected with described valve gap by the fillet of screw; The cavity that described upper valve core and valve gap are formed is communicated with by the entrance of the two-way ventilation pressure-reducing balancing valve of air passageways and self adaption; The outlet of the cavity that described upper valve core and lower valve core are formed and the two-way ventilation pressure-reducing balancing valve of self adaption.The utility model simple installation, the screw thread of lower end can be that valve member is directly vertically mounted on surface, cabin; The utility model carries out corresponding spool by the deadweight of spool to the Automatic adjusument of gas pressure and opens and closes, and to reach the effect of air pressure balance, whole valve member structure is simple, is easy to realize.
Description
Technical field
The utility model relates to a kind of valve, particularly relates to the two-way ventilation pressure-reducing balancing valve of a kind of self adaption.
Background technique
In engineering, particularly pipe-line system usually uses various valve, can be divided into position control valve (as one-way valve, selector valve etc.), pressure controlled valve (as relief valve, reduction valve, sequence valve, pressure relay etc.), flow control valve (as throttle valve, series flow control valve etc.) according to the function of valve member.During practical application, this three classes valve can combine mutually, becomes compound or integrated valve, is used for reducing pipeline and connects, make structure more compact, improve system effectiveness.
Various valve member has the state of opening and closing above, external force is generally all needed to do work in order to reach this state, the unlatching of such as one-way valve, needs fluid to overcome and is pressed in the active force of the spring on one-way valve steel ball or poppet valve core and the frictional force between spool and valve body, back down steel ball or spool; During closed check valve, fluid makes steel ball or poppet valve core be pressed on the valve seat of valve body together with spring force, blocks fluid passage, make fluid not by.Existing is also utilize spring to realize opening and closing for pressure-reducing balancing valve of ventilating, and when spring failure, whole equilibrium valve does not just have the effect of balanced gas, there is potential safety hazard.
Therefore, we are in the urgent need to a kind of ventilation pressure-reducing balancing valve newly, to make gas pressure balancing inside and outside valve member, ensure safety.
Model utility content
It is simple that the purpose of this utility model is to provide a kind of structure, the gas atmosphere of valve member both sides can be made to keep the two-way ventilation pressure-reducing balancing valve of self adaption of balance, this equilibrium valve utilizes air pressure to open and valve member deadweight is closed, be directly used in the air pressure balance in two independent air territories, particularly can be applied in closed in spaces easily to regulate with extraneous air pressure balance, keep the air pressure before and after valve member consistent.
The utility model is achieved in that
The two-way ventilation pressure-reducing balancing valve of a kind of self adaption, comprises spool, vavle shelf, valve casing, valve gap,
Described spool comprises upper valve core and lower valve core, described upper valve core is placed on upper valve base, and described lower valve core is placed on lower valve base, and described upper valve base, lower valve base are connected with described vavle shelf, described vavle shelf is connected with described valve casing, and described vavle shelf is connected with described valve gap by the fillet of screw;
The cavity that described upper valve core and valve gap are formed is communicated with by the entrance of the two-way ventilation pressure-reducing balancing valve of air passageways and self adaption;
The outlet of the cavity that described upper valve core and lower valve core are formed and the two-way ventilation pressure-reducing balancing valve of self adaption.
By such scheme, the lower end of described valve casing is provided with and makes the two-way ventilation pressure-reducing balancing valve of self adaption be vertically mounted on screw thread on the body of cabin.
By such scheme, 3 blocks of balance plates that described upper valve core and lower valve core comprise bottom surface disk respectively and be connected with bottom surface disk; One end of described 3 blocks of balance plates is connected, and adjacent balance plate is 120 ° of angles; Described bottom surface disk is vertical with balance plate to be arranged.
By such scheme, described upper valve core and upper valve base adopt face to contact, and described lower valve core and lower valve base adopt face to contact.
By such scheme, the upper side of described bottom surface disk is vertical plane, and the lower side of described bottom surface disk is the conical surface.
The utility model, by means of the principle of the opening and closing of one-way valve, designs a kind of valve member of the control for low-pressure air passage.Time valve member is opened, by air effect in spool, make pressure overcome the gravity acting of spool, thus depart from valve seat, make air flue UNICOM; Pressure before and after valve member is identical, and spool is closed due to general who has surrendered's air passageways under self gravity.
The utility model is threaded by vavle shelf and valve seat, be combined into the platform placing spool, platform structure all can arrange spool up and down, and whole valve member is arranged vertically (the utility model relies on spool weight to control open channel, and therefore valve member must at right angle setting); Spool and valve base chamber are according to processing technology requirement, and surface of contact wants fine grinding, to guarantee that surface of contact fits tightly; When valve member outlet pressure (middle part air pressure) is greater than valve member inlet pressure, upper valve core freely rises, and after valve member outlet pressure (middle part air pressure) is consistent with valve member entrance point air pressure, upper valve core falls; When valve member inlet pressure (lower air pressure) is greater than valve member outlet pressure (middle part air pressure), lower valve core freely rises, after valve member inlet pressure (lower air pressure) is consistent with valve member outlet pressure (middle part air pressure), lower valve core falls, carry out Stress control before and after valve member thus, carry out decompression and regulate.
Upper valve base of the present utility model, lower valve base are connected with vavle shelf by screw thread, upper valve core is vertically placed on upper valve base, and lower valve core is vertically placed on lower valve base, and upper lower valve base welds with vavle shelf, vavle shelf and valve casing are welded to connect, upper lower valve base, vavle shelf, valve casing composition valve body; Vavle shelf is connected with valve gap by the fillet of screw, realizes the sealing to valve body; The cavity that valve gap and upper valve core form is communicated by the air-shed of air passageways with valve member import (lower valve core lower end).Valve member outlet pressure (middle part air pressure) controls the upper valve core lifting on top, and valve member inlet pressure (lower air pressure) controls lower valve core lifting.
The beneficial effects of the utility model are: the utility model simple installation, and the screw thread of lower end can be that valve member is directly vertically mounted on surface, cabin; The utility model carries out corresponding spool by the deadweight of spool to the Automatic adjusument of gas pressure and opens and closes, and to reach the effect of air pressure balance, whole valve member structure is simple, is easy to realize; Described spool has the conical surface to design, and ensures that spool and valve seat adopt Mechanical Contact face to seal, and is easy to install and control; The utility model can adopt the spool of corresponding weight according to the difference of air pressure, be easy to realize seriation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two-way ventilation pressure-reducing balancing valve of the utility model self adaption.
Fig. 2 be upper valve core look up structural representation.
Fig. 3 is the side-looking structural representation of upper valve core.
In figure: 1-1, upper valve core, 1-2, lower valve core, 2-1, upper valve base, 2-2, lower valve base, 3, vavle shelf, 4, valve casing, 5, valve gap, 6, the fillet of screw, 7, air passageways, 8, valve member import, 9, valve member outlet, 10, screw thread, 11, upper bottom surface disk, 12, upper balance plate.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
See Fig. 1-Fig. 3, the two-way ventilation pressure-reducing balancing valve of a kind of self adaption, comprises spool, vavle shelf 3, valve casing 4, valve gap 5;
Described spool comprises upper valve core 1-1 and lower valve core 1-2, described upper valve core 1-1 is vertically positioned on upper valve base 2-1, described lower valve core 1-2 is vertically positioned on lower valve base 2-2, described upper valve base 2-1, lower valve base 2-2 are connected with described vavle shelf 3 by screw thread, described vavle shelf 3 is welded to connect with described valve casing 4, and described vavle shelf 3 is connected with described valve gap 5 by the fillet of screw 6;
The cavity that described upper valve core 1-1 and valve gap 5 are formed is communicated with the entrance (valve member import 8) of the two-way ventilation pressure-reducing balancing valve of self adaption by air passageways 7;
The cavity that described upper valve core 1-1 and lower valve core 1-2 are formed is communicated with the outlet (valve member exports 9) of the two-way ventilation pressure-reducing balancing valve of self adaption.
For the ease of installing and using, the lower end of described valve casing 4 is provided with and makes the two-way ventilation pressure-reducing balancing valve of self adaption be vertically mounted on screw thread 10 on the body of cabin.
For the ease of making spool not off center axis, avoid the friction with valve seat, 3 blocks of upper balance plates 12 that described upper valve core 1-1 comprises upper bottom surface disk 11 and is connected with upper bottom surface disk 11; One end of described 3 blocks of upper balance plates 12 is connected, and adjacent upper balance plate 12 is in 120 ° of angles; The upper side of described upper bottom surface disk 11 is vertical plane, and the lower side of described upper bottom surface disk 11 is the conical surface; Described upper bottom surface disk 11 is vertical with upper balance plate 12 to be arranged; 3 blocks of lower balance plates that described lower valve core 1-2 comprises bottom surface disk and is connected with bottom surface disk; One end of described 3 blocks of lower balance plates is connected, and adjacent lower balance plate is 120 ° of angles; The upper side of described bottom surface disk is vertical plane, and the lower side of described bottom surface disk is the conical surface; Described bottom surface disk is vertical with lower balance plate to be arranged.
In order to ensure the tightness of valve body, described upper valve core 1-1 and upper valve base 2-1 adopt face to contact, and described lower valve core 1-2 and lower valve base 2-2 adopt face to contact.
In use, whole self adaption two-way ventilation pressure-reducing balancing valve is connected with cabin is vertical, for balancing the air pressure before and after valve member by the screw thread 10 of valve casing 4 lower end.When valve member outlet pressure (middle part air pressure) is greater than valve member inlet pressure, and the pressure acted on upper valve core 1-1 can overcome the gravity of upper valve core 1-1, upper valve core 1 is made freely to increase, middle part air-shed (valve member outlet 9) is communicated with valve member lower air territory (valve member import 8), two-part air pressure is equal, upper valve core 1-1 free fall is on upper valve base 2-1, two-way ventilation pressure-reducing balancing valve balance middle part air-shed (valve member outlet) and valve member lower air territory (valve member import) of self adaption, action completes.When (lower air pressure) is greater than valve member outlet pressure (middle part air pressure), when the air pressure (valve member inlet pressure) of valve member bottom is greater than the air pressure (valve member outlet pressure) in the middle part of valve member, and the pressure acted on lower valve core 1-2 can overcome the gravity of lower valve core 1-2, lower valve core 1-2 freely rises, lower air territory is communicated with air-shed in the middle part of valve member, two-part air pressure is equal, lower valve core 1-2 free fall is on lower valve base 2-2, two-way ventilation pressure-reducing balancing valve balance middle part air-shed (valve member outlet) and valve member lower air territory (valve member import) of self adaption, action completes.
The utility model can be directly used in the air pressure balance in two independent air territories, particularly can be applied in the Automatic adjusument of closed in spaces and extraneous air pressure balance easily, the screw thread of valve casing lower end can directly be vertically mounted on surface, cabin, regulate corresponding spool to open and close by the deadweight of spool and gas pressure, reach the effect of air pressure balance; The opening and closing of valve rely on the self gravitation of spool and gas pressure to realize completely, and structure is simple, are easy to realize.Spool of the present utility model and the valve seat metal surface after abrasive process contacts sealing, simple for structure, and good sealing effect is safe and reliable.
The above is preferred embodiment of the present utility model, but the utility model should not be confined to the content disclosed in this embodiment and accompanying drawing.All every do not depart from spirit disclosed in the utility model under the equivalence that completes or amendment, all fall into the scope of the utility model protection.
Claims (5)
1. the two-way ventilation pressure-reducing balancing valve of self adaption, comprise spool, vavle shelf, valve casing, valve gap, it is characterized in that: described spool comprises upper valve core and lower valve core, described upper valve core is placed on upper valve base, described lower valve core is placed on lower valve base, described upper valve base, lower valve base are connected with described vavle shelf, and described vavle shelf is connected with described valve casing, and described vavle shelf is connected with described valve gap by the fillet of screw;
The cavity that described upper valve core and valve gap are formed is communicated with by the entrance of the two-way ventilation pressure-reducing balancing valve of air passageways and self adaption;
The outlet of the cavity that described upper valve core and lower valve core are formed and the two-way ventilation pressure-reducing balancing valve of self adaption.
2. the two-way ventilation pressure-reducing balancing valve of self adaption as claimed in claim 1, is characterized in that: the lower end of described valve casing is provided with and makes the two-way ventilation pressure-reducing balancing valve of self adaption be vertically mounted on screw thread on the body of cabin.
3. the two-way ventilation pressure-reducing balancing valve of self adaption as claimed in claim 1, is characterized in that: 3 blocks of balance plates that described upper valve core and lower valve core comprise bottom surface disk respectively and be connected with bottom surface disk; One end of described 3 blocks of balance plates is connected, and adjacent balance plate is 120 ° of angles; Described bottom surface disk is vertical with balance plate to be arranged.
4. the two-way ventilation pressure-reducing balancing valve of the self adaption as described in claim 1 or 3, is characterized in that: described upper valve core and upper valve base adopt face to contact, and described lower valve core and lower valve base adopt face to contact.
5. the two-way ventilation pressure-reducing balancing valve of self adaption as claimed in claim 3, it is characterized in that: the upper side of described bottom surface disk is vertical plane, the lower side of described bottom surface disk is the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520170252.9U CN204493821U (en) | 2015-03-25 | 2015-03-25 | The two-way ventilation pressure-reducing balancing valve of self adaption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520170252.9U CN204493821U (en) | 2015-03-25 | 2015-03-25 | The two-way ventilation pressure-reducing balancing valve of self adaption |
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| CN204493821U true CN204493821U (en) | 2015-07-22 |
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| CN201520170252.9U Active CN204493821U (en) | 2015-03-25 | 2015-03-25 | The two-way ventilation pressure-reducing balancing valve of self adaption |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090649A (en) * | 2015-09-07 | 2015-11-25 | 一重集团大连设计研究院有限公司 | End face self-sealing quick connector |
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2015
- 2015-03-25 CN CN201520170252.9U patent/CN204493821U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090649A (en) * | 2015-09-07 | 2015-11-25 | 一重集团大连设计研究院有限公司 | End face self-sealing quick connector |
| CN105090649B (en) * | 2015-09-07 | 2017-04-26 | 一重集团大连设计研究院有限公司 | End face self-sealing quick connector |
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| GR01 | Patent grant |