CN208417561U - A kind of wafer type soft sealing butterfly valve - Google Patents

Abstract

The utility model discloses a kind of wafer type soft sealing butterfly valves, including valve body, the valve body bottom end is equipped with valve seat, the valve inner is equipped with feeding cavity, the feeding cavity inside is equipped with the first butterfly plate, first butterfly plate side is equipped with the second butterfly plate, the first fixing screws are equipped between first butterfly plate and the second butterfly plate, accommodating groove is equipped with inside second butterfly plate, the first gasket is equipped with inside the accommodating groove, first gasket side is equipped with locating convex block, first butterfly plate and locating convex block junction are equipped with fixing groove, dead ring is equipped between the fixing groove and locating convex block, bar slot is equipped with inside first butterfly plate and the second butterfly plate, valve rod is equipped with inside the bar slot.The utility model is sealed the first butterfly plate and the second butterfly plate engagement edge position by being equipped with the first gasket of the first gasket, dumbbell shape, the first butterfly plate and the second butterfly plate separation design, can carry out single replacement according to wear intensity.

Description

A kind of wafer type soft sealing butterfly valve

Technical field

The utility model relates to valve field, in particular to a kind of wafer type soft sealing butterfly valve.

Background technique

Butterfly valve is called flap valve, is a kind of simple regulating valve of structure, simultaneously can be used for the switch of low pressure pipeline medium Control.Butterfly valve is cold suitable for plumbing, building, air-conditioning, sewage, producer, coal gas, natural gas, liquefied petroleum gas, town gas Hot-air, chemical industry smelt and the engineering systems such as generation environment-friendly in convey various corrosivity, non-corrosive fluids medium pipeline on, For adjusting and being truncated the flowing of medium.Butterfly plate will receive abrasion to existing butterfly valve in use, need user whole Replacement, to increase the cost of use of user.

Therefore, it is necessary to solve the above problems to invent a kind of wafer type soft sealing butterfly valve.

Utility model content

The purpose of this utility model is to provide a kind of wafer type soft sealing butterfly valves, and the first gasket is placed into accommodating groove Interior, position convex block is placed into fixing groove, and locating convex block is fixed relative to fixed groove location via dead ring, can prevent the One gasket skids off accommodating groove, and the first gasket of dumbbell shape carries out the first butterfly plate with the second butterfly plate engagement edge position close Envelope, the first butterfly plate and the second butterfly plate separation design can carry out single replacement according to wear intensity, to solve in above-mentioned background technique The problem of proposition.

To achieve the above object, the utility model provides the following technical solutions: a kind of wafer type soft sealing butterfly valve, including valve Body, the valve body bottom end are equipped with valve seat, and the valve inner is equipped with feeding cavity, and the feeding cavity inside is equipped with the first butterfly Plate, first butterfly plate side are equipped with the second butterfly plate, and the first fixing screws, institute are equipped between first butterfly plate and the second butterfly plate It states and is equipped with accommodating groove inside the second butterfly plate, be equipped with the first gasket inside the accommodating groove, first gasket side is equipped with Locating convex block, first butterfly plate and locating convex block junction are equipped with fixing groove, are equipped between the fixing groove and locating convex block It is equipped with bar slot inside dead ring, first butterfly plate and the second butterfly plate, is equipped with valve rod inside the bar slot.

Preferably, the second gasket is equipped between the valve seat and feeding cavity, the second gasket outer wall is equipped with close Sealing, the sealant outer wall are equipped with transition zone, and the second fixing screws are equipped between second gasket and valve seat.

Preferably, second gasket is made of stainless steel material, and the sealant is made of rubber material, the mistake Layer is crossed to be made of polytetrafluoroethylene material.

Preferably, the valve rod is adapted with bar slot, and described valve rod one end is through valve body and extends to stem exterior.

Preferably, the locating convex block is adapted with accommodating groove, and the locating convex block cross sectional shape is set as dumbbell shaped.

Preferably, first gasket and locating convex block are integrally formed, and the dead ring is adapted with locating convex block.

The technical effect and advantage of the utility model:

1, the first gasket is placed into accommodating groove, position convex block is placed by the utility model by being equipped with the first gasket Into fixing groove, locating convex block is fixed relative to fixed groove location via dead ring, can prevent the first gasket from skidding off First gasket of accommodating groove, dumbbell shape is sealed the first butterfly plate and the second butterfly plate engagement edge position, the first butterfly plate With the second butterfly plate separation design, single replacement can be carried out according to wear intensity, more traditional butterfly plate can reduce the expense of integral replacing With；

2, the utility model can be to the first butterfly plate and the second butterfly plate by being equipped with the setting of the second gasket, the second gasket It is sealed with valve seat gap position, the second gasket of stainless steel material is capable of providing enough rigidity, prevents from deforming because of it Preferable sealing effect can not be excessively played, the setting of sealant can increase by the second gasket adaptability, to the second sealing gasket joining Touching position protected, the setting of transition zone can carry out it is soft or hard excessively, to improve the service life of second gasket.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the side view of the utility model；

Fig. 3 is first butterfly plate and the second butterfly plate structural schematic diagram of the utility model；

Fig. 4 is the portion A enlarged drawing in Fig. 2 of the utility model；

In figure: 1 valve body, 2 valve seats, 3 feeding cavitys, 4 first butterfly plates, 5 second butterfly plates, 6 first fixing screws, 7 accommodating grooves, 8 first gaskets, 9 locating convex blocks, 10 fixing grooves, 11 dead rings, 12 bar slots, 13 valve rods, 14 second gaskets, 15 sealants, 16 transition zones, 17 second fixing screws.

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.

The utility model provides a kind of wafer type soft sealing butterfly valve as shown in Figs 1-4, including valve body 1, the valve body 1 Bottom end is equipped with valve seat 2, and feeding cavity 3 is equipped with inside the valve body 1, and the first butterfly plate 4 is equipped with inside the feeding cavity 3, described First butterfly plate, 4 side is equipped with the second butterfly plate 5, and the first fixing screws 6 are equipped between first butterfly plate 4 and the second butterfly plate 5, described It is equipped with accommodating groove 7 inside second butterfly plate 5, is equipped with the first gasket 8 inside the accommodating groove 7,8 side of the first gasket is set There is locating convex block 9, first butterfly plate 4 is equipped with fixing groove 10, the fixing groove 10 and locating convex block with 9 junction of locating convex block It is equipped with dead ring 11 between 9, bar slot 12 is equipped with inside first butterfly plate 4 and the second butterfly plate 5, is equipped with valve inside the bar slot 12 Bar 13.

Further, in the above-mentioned technical solutions, the second gasket 14, institute are equipped between the valve seat 2 and feeding cavity 3 14 outer wall of the second gasket is stated equipped with sealant 15,15 outer wall of sealant is equipped with transition zone 16, second gasket 14 The second fixing screws 17 are equipped between valve seat 2；

Further, in the above-mentioned technical solutions, second gasket 14 is made of stainless steel material, the sealant 15 are made of rubber material, and the transition zone 16 is made of polytetrafluoroethylene material, 14 energy of the second gasket of stainless steel material Enough rigidity are enough provided, prevent from excessively playing preferable sealing effect because of its deformation, the setting of sealant 15 can increase Second gasket, 14 adaptability protects 14 contact position of the second gasket, and the setting of transition zone 16 can carry out soft or hard mistake Degree, to improve the service life of second gasket 14；

Further, in the above-mentioned technical solutions, the valve rod 13 is adapted with bar slot 12, and described 13 one end of valve rod is run through Valve body 1 simultaneously extends to outside valve rod 13；

Further, in the above-mentioned technical solutions, the locating convex block 9 is adapted with accommodating groove 7, the locating convex block 9 Cross sectional shape is set as dumbbell shaped, and the first gasket 8 of dumbbell shape is to 5 engagement edge position of the first butterfly plate 4 and the second butterfly plate It is sealed；

Further, in the above-mentioned technical solutions, first gasket 8 is integrally formed with locating convex block 9, the fastening Ring 11 is adapted with locating convex block 9, and the first gasket 8 is placed into accommodating groove 7, and position convex block is placed into fixing groove 10, warp Locating convex block 9 is fixed relative to 10 position of fixing groove by dead ring 11, can prevent the first gasket 8 from skidding off accommodating groove 7.

This practical working principle:

First gasket 8 is placed into accommodating groove 7 in use, referring to Figure of description 1-3 by this wafer type soft sealing butterfly valve Interior, position convex block is placed into fixing groove 10, and locating convex block 9 is fixed relative to 10 position of fixing groove via dead ring 11, It can prevent the first gasket 8 from skidding off accommodating groove 7, bar slot 12 is aligned placement with valve rod 13 by user, passes through the first fixing screws 6 First butterfly plate 4 and the second butterfly plate 5 are fixed, the first gasket 8 of dumbbell shape connects the first butterfly plate 4 and the second butterfly plate 5 Touching marginal position is sealed, 5 separation design of the first butterfly plate 4 and the second butterfly plate, can carry out single replacement according to wear intensity, compared with Traditional butterfly plate can reduce the expense of integral replacing；

Referring to Figure of description 4, the setting of the second gasket 14 can be to the first butterfly plate 4 and the second butterfly plate 5 and 2 gap of valve seat Position is sealed, and the second gasket 14 of stainless steel material is capable of providing enough rigidity, prevents from excessively can not because of its deformation Preferable sealing effect is played, the setting of sealant 15 can increase by 14 adaptability of the second gasket, contact to the second gasket 14 Position is protected, the setting of transition zone 16 can carry out it is soft or hard excessively, to improve the service life of second gasket 14.

Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (6)

1. a kind of wafer type soft sealing butterfly valve, including valve body (1), it is characterised in that: valve body (1) bottom end is equipped with valve seat (2), Feeding cavity (3) are equipped with inside the valve body (1), are equipped with the first butterfly plate (4) inside the feeding cavity (3), first butterfly Plate (4) side is equipped with the second butterfly plate (5), is equipped with the first fixing screws (6) between first butterfly plate (4) and the second butterfly plate (5), Accommodating groove (7) are equipped with inside second butterfly plate (5), are equipped with the first gasket (8) inside the accommodating groove (7), described first Gasket (8) side is equipped with locating convex block (9), and first butterfly plate (4) and locating convex block (9) junction are equipped with fixing groove (10), dead ring (11) are equipped between the fixing groove (10) and locating convex block (9), first butterfly plate (4) and the second butterfly plate (5) internal to be equipped with bar slot (12), valve rod (13) are equipped with inside the bar slot (12).

2. a kind of wafer type soft sealing butterfly valve according to claim 1, it is characterised in that: the valve seat (2) and feeding are empty The second gasket (14) are equipped between chamber (3), the second gasket (14) outer wall is equipped with sealant (15), the sealant (15) outer wall is equipped with transition zone (16), is equipped with the second fixing screws (17) between second gasket (14) and valve seat (2).

3. a kind of wafer type soft sealing butterfly valve according to claim 2, it is characterised in that: second gasket (14) by Stainless steel material is made, and the sealant (15) is made of rubber material, and the transition zone (16) is by polytetrafluoroethylene material system At.

4. a kind of wafer type soft sealing butterfly valve according to claim 1, it is characterised in that: the valve rod (13) and bar slot (12) it is adapted, described valve rod (13) one end is through valve body (1) and extends to valve rod (13) outside.

5. a kind of wafer type soft sealing butterfly valve according to claim 1, it is characterised in that: the locating convex block (9) and receipts Slot (7) of receiving is adapted, and locating convex block (9) cross sectional shape is set as dumbbell shaped.

6. a kind of wafer type soft sealing butterfly valve according to claim 1, it is characterised in that: first gasket (8) with Locating convex block (9) is integrally formed, and the dead ring (11) is adapted with locating convex block (9).