CN209654632U - A kind of middle pressure exhaust valve - Google Patents

Abstract

The utility model discloses a kind of middle pressure exhaust valves, including valve body, flap, gib block, valve deck, stop collar and mounting groove, the valve inner bottom end is equipped with support frame, support frame as described above two sides outer wall offers port, the valve interior wall upper end is fixed with gib block, and valve body upper end inner wall is movably installed with flap, the flap outer wall offers sliding slot, the flap upper surface is fixed with gasket, valve body upper end inner wall opens up fluted, the inside grooves are equipped with O-ring seal, the valve body upper end is provided with valve deck, the valve deck lower end inner wall is fixed with connection ring, the fixed restraining position ring block in the connection ring lower surface, valve body upper surface outer wall offers the mounting groove of rounded distribution, the stop collar lower surface is equipped with fixed ring, the fixed ring is rotatably installed in inside mounting groove.The utility model is defined the moving direction of flap by the way that gib block is arranged, and reduces flap and damages, prolongs the service life.

Description

A kind of middle pressure exhaust valve

Technical field

The utility model relates to exhaust valve technical field, specially a kind of middle pressure exhaust valve.

Background technique

Middle pressure exhaust valve is mainly used in supply and drain water system, for the air in drain, to guarantee liquid in pipe medium It can smooth flow.When generating negative pressure, flap can be automatically opened in pipe, atmosphere is immediately wicked into, to prevent pipeline because negative It presses and damages, it is ensured that pipeline safety.And the flap of traditional middle pressure exhaust valve is designed using stainless steel floating ball, in order to guarantee There is certain buoyancy, the wall thickness of floating ball is all very thin.When floating ball is in close state under the action of medium buoyancy and pressure, float Ball and the annulus area of valve base sealing face contact will generate very big stress, since the wall thickness of floating ball is very thin, so stress is such as Fruit is more than that the elastic limit of floating ball will make floating ball generate local deformation, and influence airtightness.Stainless steel floating ball is in valve body simultaneously Inside lacks limit when mobile, it is impossible to ensure that flap can be properly positioned when moving up and down, will affect the effect of actual use.

Utility model content

The purpose of this utility model is to provide a kind of middle pressure exhaust valve, has and reduce flap damage and ensure flap just The advantages of determining position solves the problems, such as that flap is easy impaired and can not be properly positioned.

To achieve the above object, the utility model provides the following technical solutions: a kind of middle pressure exhaust valve, including valve body, valve Valve, gib block, valve deck, stop collar and mounting groove, the valve inner bottom end are equipped with support frame, support frame as described above two sides outer wall Symmetrical port is offered, the valve interior wall upper end is fixed with the gib block of rounded array distribution, and valve body upper end Inner wall is movably installed with flap, and the flap outer wall offers sliding slot compatible with gib block, and the flap upper surface is fixed There is a gasket, valve body upper end inner wall opens up fluted, and the inside grooves are equipped with O-ring seal, the valve body upper end It is provided with valve deck, the valve deck lower end inner wall is fixed with the connection ring of rounded distribution, and the connection ring lower surface fixation is limited Position ring, the limit ring surface offer first through hole compatible with O-ring seal, and valve body upper surface outer wall offers The mounting groove of rounded distribution, the stop collar lower surface are equipped with fixed ring, and the fixed ring is rotatably installed in mounting groove Portion.

Preferably, the valve body lower end surface offers the screw hole of rounded array distribution.

Preferably, cavity is offered inside the flap.

Preferably, the gasket outer diameter is greater than O-ring seal inner diameter, and flap outer diameter is less than valve body Inner diameter.

Preferably, the connection ring outer wall offers the second through-hole of rounded array distribution.

Preferably, the mounting groove inner wall and fixed ring offer compatible screw thread.

Compared with prior art, the beneficial effects of the utility model are as follows:

1, the utility model has achieved the effect that be properly positioned guarantee flap, has worked as liquid by setting gib block and sliding slot When body enters valve inner, flap is risen in valve body by buoyancy, and flap is when valve inner is mobile, and gib block is to flap It is limited, the sliding between sliding slot and gib block that flap is opened up by outer wall makes flap along the vertical direction of gib block Upper movement, can make the gasket and O-ring seal good fit of flap upper surface, to ensure energy when flap moves up and down It is enough properly positioned, the collision of flap Yu valve body upper end inner wall can be reduced, avoid flap surface from generating local deformation, ensured reality The effect used, while extending the service life of flap.

2, the utility model has been achieved the effect that by setting mounting groove and fixed ring convenient for dismantling valve deck, valve Lid is connected with stop collar by connection ring, when valve deck rotates, the fixed ring of stop collar lower surface can be driven to rotate, fixed ring table By being threadably engaged in inside mounting groove, staff can rotate valve deck manually in face, can mount and dismount valve deck, can Convenient for people's replacement o sealing ring, it is more convenient to actually use.

Detailed description of the invention

Fig. 1 is the main cross section structure diagram of the utility model；

Fig. 2 is the schematic cross-sectional view of bowing of the utility model；

Fig. 3 is A structure enlargement diagram in Fig. 1 of the utility model；

Fig. 4 is the valve deck present invention looks up structural representation of the utility model.

In figure: 1, valve body；2, support frame；3, flap；4, gib block；5, O-ring seal；6, valve deck；7, connection ring；8, One through-hole；9, groove；10, stop collar；11, the second through-hole；12, gasket；13, cavity；14, port；15, screw hole；16, sliding Slot；17, mounting groove；18, fixed ring；19, screw thread.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " front end ", " after The orientation or positional relationship of the instructions such as end ", " both ends ", " one end ", " other end " is that orientation based on the figure or position are closed System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, Term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " being provided with ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to detachably connect It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition Understand the concrete meaning of above-mentioned term in the present invention.

A kind of embodiment provided by the utility model referring to FIG. 1 to FIG. 4: a kind of middle pressure exhaust valve, including valve body 1, valve Valve 3, gib block 4, valve deck 6, stop collar 10 and mounting groove 17,1 inner bottom of valve body are equipped with support frame 2, outside 2 two sides of support frame Wall offers symmetrical port 14, and support frame 2 can be supported flap 3, and the lower end inner wall of support frame 2 is to prevent water Impact, plays the role of buffering.There are port 14 in the two sides of support frame 2, guarantee necessary circulation area.1 inner wall upper end of valve body is solid Surely there is the gib block 4 of rounded array distribution, and 1 upper end inner wall of valve body is movably installed with flap 3, opens up inside flap 3 free The buoyancy of flap 3 can be improved in chamber 13, cavity 13, and 3 outer diameter of flap is less than 1 inner diameter of valve body, the internal diameter and flap of valve body 1 There are enough gaps between 3 outer circle to guarantee capacity.3 outer wall of flap offers sliding slot 16 compatible with gib block 4, 3 upper surface of flap is fixed with gasket 12.When liquid enters 1 inside of valve body, flap 3 is risen in valve body 1 by buoyancy, and When flap 3 moves inside valve body 1, gib block 4 limits flap 3, the sliding slot 16 and be oriented to that flap 3 is opened up by outer wall Sliding between item 4 makes to move on vertical direction of the flap 3 along gib block 4, can make the gasket 12 of 3 upper surface of flap Flap 3 and valve body 1 can be reduced so that having ensured can be properly positioned when flap 3 moves up and down with 5 good fit of O-ring seal The collision of upper end inner wall avoids 3 surface of flap from generating local deformation, has ensured the effect of actual use, while extending flap 3 Service life.

1 upper end inner wall of valve body opens up fluted 9, and O-ring seal 5 is equipped with inside groove 9, and 12 outer diameter of gasket is big In 5 inner diameter of O-ring seal, 1 upper end of valve body is provided with valve deck 6, and 6 lower end inner wall of valve deck is fixed with the connection of rounded distribution Ring 7,7 outer wall of connection ring offer the second through-hole 11 of rounded array distribution, and restraining position ring block 10 is fixed in 7 lower surface of connection ring, 10 surface of stop collar offers first through hole 8 compatible with O-ring seal 5, and stop collar 10 can consolidate O-ring seal 5 It is fixed, and the thickness of O-ring seal 5 is greater than 9 inner wall thickness of groove, and stop collar 10 can squeeze O-ring seal 5, thus Ensure the stabilization of O-ring seal 5.When valve body 1 is vented outwards, gas can be discharged by first through hole 8 and the second through-hole 11.Valve 1 upper surface outer wall of body offers the mounting groove 17 of rounded distribution, and 10 lower surface of stop collar is equipped with fixed ring 18, fixed ring 18 It is rotatably installed in inside mounting groove 17,17 inner wall of mounting groove and fixed ring 18 offer compatible screw thread 19, valve deck 6 and limit Position ring 10 is connected by connection ring 7, when valve deck 6 rotates, the fixed ring 18 of 10 lower surface of stop collar can be driven to rotate, fixed ring 18 surfaces are engaged on inside mounting groove 17 by screw thread 19, and staff can rotate valve deck 6 manually, can pacify valve deck 6 Assembly and disassembly can be convenient for people's replacement o sealing ring 5, and it is more convenient to actually use.1 rear surface of valve body offers rounded The screw hole 15 of array distribution, valve body 1 can be mounted on water pipe by screw hole 15 and screw.

Working principle: inside valve body 1 when starting water filling in pipeline, flap 3 is in the position of unlatching, is largely arranged Gas.With the reduction of air, water level is gradually risen, and gib block 4 limits flap 3, the sliding slot that flap 3 is opened up by outer wall Sliding between 16 and gib block 4 makes to move on vertical direction of the flap 3 along gib block 4, can make 3 upper surface of flap Gasket 12 and 5 good fit of O-ring seal can reduce flap so that having ensured can be properly positioned when flap 3 moves up and down 3 with the collision of 1 upper end inner wall of valve body, avoid 3 surface of flap from generating local deformation, ensured the effect of actual use, same to time delay The service life of flap 3 is grown.When raised water level floats flap 3 gasket 12 and O-shaped sealing until 3 upper surface of flap When 5 contact of circle, exhaust is stopped, when valve body 1 is vented outwards, gas can be discharged by first through hole 8 and the second through-hole 11.With Being stepped up for hydraulic pressure, flap 3 the more closes the more tight, ensure that exhaust valve body sealing performance.When in pipe once generate negative pressure When, flap 3 can automatically open, and atmosphere be immediately wicked into, to prevent pipeline from damaging because of negative pressure, it is ensured that pipeline safety.Valve deck 6 with Stop collar 10 is connected by connection ring 7, when valve deck 6 rotates, the fixed ring 18 of 10 lower surface of stop collar can be driven to rotate, fixed 18 surface of ring is engaged on inside mounting groove 17 by screw thread 19, and staff can rotate valve deck 6 manually, can carry out valve deck 6 Installation and removal can be convenient for people's replacement o sealing ring 5, and it is more convenient to actually use.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (6)

1. a kind of middle pressure exhaust valve, including valve body (1), flap (3), gib block (4), valve deck (6), stop collar (10) and mounting groove (17), it is characterised in that: valve body (1) inner bottom is equipped with support frame (2), and support frame as described above (2) two sides outer wall opens up Have symmetrical port (14), valve body (1) the inner wall upper end is fixed with the gib block (4) of rounded array distribution, and valve Body (1) upper end inner wall is movably installed with flap (3), and flap (3) outer wall offers and gib block (4) compatible sliding slot (16), flap (3) upper surface is fixed with gasket (12), and valve body (1) upper end inner wall opens up fluted (9), described It is equipped with O-ring seal (5) inside groove (9), valve body (1) upper end is provided with valve deck (6), in valve deck (6) lower end Wall is fixed with the connection ring (7) of rounded distribution, and connection ring (7) lower surface is fixed restraining position ring block (10), the stop collar (10) surface offer with O-ring seal (5) compatible first through hole (8), valve body (1) upper surface outer wall, which offers, is in The mounting groove (17) of circular distribution, stop collar (10) lower surface are equipped with fixed ring (18), fixed ring (18) rotation It is internal to be mounted on mounting groove (17).

2. a kind of middle pressure exhaust valve according to claim 1, it is characterised in that: valve body (1) rear surface offers The screw hole (15) of rounded array distribution.

3. a kind of middle pressure exhaust valve according to claim 1, it is characterised in that: offer cavity inside the flap (3) (13)。

4. a kind of middle pressure exhaust valve according to claim 1, it is characterised in that: gasket (12) outer diameter is greater than O-ring seal (5) inner diameter, and flap (3) outer diameter is less than valve body (1) inner diameter.

5. a kind of middle pressure exhaust valve according to claim 1, it is characterised in that: connection ring (7) outer wall, which offers, is in The second through-hole (11) of circular array distribution.

6. a kind of middle pressure exhaust valve according to claim 1, it is characterised in that: mounting groove (17) inner wall and fixed ring (18) compatible screw thread (19) is offered.