CN209084028U - It is a kind of anticorrosion and can to reduce the shut-off valve of sealed pressure - Google Patents
It is a kind of anticorrosion and can to reduce the shut-off valve of sealed pressure Download PDFInfo
- Publication number
- CN209084028U CN209084028U CN201821673831.5U CN201821673831U CN209084028U CN 209084028 U CN209084028 U CN 209084028U CN 201821673831 U CN201821673831 U CN 201821673831U CN 209084028 U CN209084028 U CN 209084028U
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- Prior art keywords
- sealing
- sealing block
- valve
- hole
- flap
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- Expired - Fee Related
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Abstract
Anticorrosion and it can reduce the shut-off valve of sealed pressure the utility model relates to a kind of, including valve body, valve seat, valve rod and handwheel, the inside that the lower end of valve rod is located at valve body is fixedly connected with flap, and the upper end of valve seat and the position corresponding position of flap are provided with through-hole, and through-hole matches with flap；Flap includes the first sealing block, the second sealing block and third sealing block, first sealing block, the second sealing block and third sealing block to small from successively successively decreasing greatly, the upper end of first sealing block is fixed at the lower end of valve rod, the upper end of second sealing block is fixed at the lower end of the first sealing block, the upper end of third sealing block is fixed at the lower end of the second sealing block, and the inner wall of through-hole successively offers the first sealing hole, the second sealing hole and third sealing hole from top to bottom.The utility model can reduce the sealed pressure of shut-off valve, improve the anticorrosive property of shut-off valve.
Description
Technical field
The utility model belongs to shut-off valve technical field, more particularly to one kind can anticorrosion and can reduce sealing pressure
The shut-off valve of power.
Background technique
Shut-off valve is also known as pipe valve valve, belongs to forced seal formula valve, so when valve is closed, it is necessary to apply to flap and press
Power is not leaked with forced seal face.When medium is by entering valve below flap, the resistance overcome required for operating force, is valve
The frictional force of bar and filler and the thrust as caused by the pressure of medium, the power of closing valve is bigger than the power of valve opening door, so valve rod
Diameter it is big, the failure of valve rod bending otherwise can occur.
Face contact sealing is generally between the flap and sealing surface of seat of traditional shut-off valve, sealed pressure is larger, is ending
During valve frequently opens and closes, it can wear or be corroded between flap and sealing surface of seat, and then cause poorly sealed
Close and traditional shut-off valve anticorrosive property is poor.
Utility model content
The utility model aims to solve the problem that is generally face contact sealing, sealing in the prior art between flap and sealing surface of seat
Pressure is larger, during shut-off valve frequently opens and closes, can wear or be corroded between flap and sealing surface of seat, into
And the technical problems such as cause poorly sealed close and traditional shut-off valve anticorrosive property poor and one kind is provided being capable of anticorrosion
And the shut-off valve of sealed pressure can be reduced.
The utility model is adopted the technical scheme that solve technical problem present in well-known technique:
It is a kind of anticorrosion and can to reduce the shut-off valve of sealed pressure, including valve body, valve seat, valve rod and handwheel,
The inside that the lower end of the valve rod is located at valve body is fixedly connected with flap, and the upper end of the valve seat and the position corresponding position of flap are opened
There is through-hole, the through-hole matches with flap；The flap includes the first sealing block, the second sealing block and third sealing block, institute
The first sealing block, the second sealing block and third sealing block are stated from successively successively decreasing to small greatly, the upper end of first sealing block is fixed
The lower end of valve rod is set, and the upper end of second sealing block is fixed at the lower end of the first sealing block, the third sealing
The upper end of block is fixed at the lower end of the second sealing block, and the inner wall of the through-hole successively offers the first sealing from top to bottom
Hole, the second sealing hole and third sealing hole, first sealing hole, the second sealing hole and third sealing hole are sealed with first respectively
Block, the second sealing block and third sealing block match, and the bottom of first sealing hole is equipped with sealing structure；The sealing structure
Gask-O-Seal including the first sealing hole bottom is arranged in, the bottom of first sealing hole offers multiple grooves, multiple
The groove is arranged in a ring, and the inside of multiple grooves slidably connects mobile bar, one end of multiple mobile bars
By being fixedly connected at spring and the slot bottom of groove, the other end of multiple mobile bars extends respectively to the outer of respective slot
Portion and be fixedly connected on the downside of Gask-O-Seal；The inner wall of the valve body is equipped with corrosion-resistant coating.
And, the valve seat is made of aluminium bronze.
And, the side wall lower ends of first sealing block, the second sealing block and third sealing block are arcwall face.
The utility model has the advantages and positive effects of:
1) by being arranged in the first sealing block, the second sealing block and the third sealing block and setting through-hole of valve rod lower end
The first sealing hole, the second sealing hole and third sealing hole so that avoiding flap between flap and valve seat with arc face contact
Between valve seat the phenomenon that direct plane contact, and then reduce the sealed pressure of shut-off valve；
2) by the Gask-O-Seal that is arranged in the first sealing hole, can increase the first sealing block and the first sealing hole it
Between leakproofness, when the first sealing block squeeze Gask-O-Seal when, enable to mobile bar squeeze spring, it is close to can be avoided first
The phenomenon that generation abrasion is directly contacted between envelope block and the first sealing hole；
3) by the corrosion-resistant coating being arranged on valve interior wall, it can be avoided what corrosive liquid was directly contacted with valve interior wall
Phenomenon, and then improve the anticorrosive property of shut-off valve.
Detailed description of the invention
Fig. 1 is the schematic diagram of internal structure of the utility model；
Fig. 2 is the valve flap structure schematic diagram of the utility model；
Fig. 3 is partial enlarged view at the A of Fig. 1；
Fig. 4 is partial enlarged view at the B of Fig. 3.
In figure: 1, valve body；2, valve seat；3, valve rod；4, handwheel；5, flap；6, through-hole；7, the first sealing block；8, second is close
Seal block；9, third sealing block；10, the first sealing hole；11, the second sealing hole；12, third sealing hole；13, Gask-O-Seal；14,
Groove；15, mobile bar；16, spring.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by specific embodiment, and following embodiment is only retouched
The property stated, it is not restrictive, protection scope of this utility model cannot be limited by this.
It is a kind of anticorrosion and can to reduce the shut-off valve of sealed pressure, please refer to Fig. 1-4, including valve body 1, valve seat 2,
Valve rod 3 and handwheel 4, the inside that the lower end of valve rod is located at valve body are fixedly connected with flap 5, the upper end of valve seat and the position of flap
Corresponding position is provided with through-hole 6, and through-hole matches with flap.
Flap include the first sealing block 7, the second sealing block 8 and third sealing block 9, the first sealing block, the second sealing block and
Third sealing block to small from successively successively decreasing greatly, and the upper end of the first sealing block is fixed at the lower end of valve rod, the second sealing block
Upper end is fixed at the lower end of the first sealing block, and the upper end of third sealing block is fixed at the lower end of the second sealing block, institute
The inner wall for stating through-hole successively offers the first sealing hole 10, the second sealing hole 11 and third sealing hole 12 from top to bottom, and first is close
Sealing of hole, the second sealing hole and third sealing hole match with the first sealing block, the second sealing block and third sealing block respectively, and first
The bottom of sealing hole is equipped with sealing structure.
Sealing structure includes the Gask-O-Seal 13 that the first sealing hole bottom is arranged in, and the bottom of the first sealing hole offers
Multiple grooves 14, multiple grooves are arranged in a ring, and the inside of multiple grooves slidably connects mobile bar 15, multiple mobile bars
One end passes through to be fixedly connected at spring 16 and the slot bottom of groove, and the other end of multiple mobile bars extends respectively to respective slot
It is external and be fixedly connected on the downside of Gask-O-Seal.
The inner wall of valve body is equipped with corrosion-resistant coating.
The valve seat is preferably made of aluminium bronze.
The side wall lower ends of first sealing block, the second sealing block and third sealing block preferably use arcwall face.
The working procedure of this shut-off valve is:
1) rotate handwheel, flap and valve seat enabled to cooperate, by be arranged in valve rod lower end the first sealing block, second
The first sealing hole, the second sealing hole and third sealing hole in sealing block and third sealing block and setting through-hole, so that flap
With arc face contact between valve seat, the phenomenon that avoiding direct plane contact between flap and valve seat, and then reduce cut-off
The sealed pressure of valve；
2) it when the first sealing block squeezes Gask-O-Seal, enables to mobile bar to squeeze spring, it is close to can be avoided first
The phenomenon that generation abrasion is directly contacted between envelope block and the first sealing hole；
3 corrosion-resistant coating by being arranged on valve interior wall can be avoided what corrosive liquid was directly contacted with valve interior wall
Phenomenon, and then improve the anticorrosive property of shut-off valve.
Although disclosing the embodiments of the present invention and attached drawing for the purpose of illustration, those skilled in the art can be with
Understand: departing from the utility model and spirit and scope of the appended claims, various substitutions, changes and modifications are all can
Can, therefore, the scope of the utility model is not limited to the embodiment and attached drawing disclosure of that.
Claims (3)
1. one kind anticorrosion and can reduce the shut-off valve of sealed pressure, including valve body, valve seat, valve rod and handwheel,
Be characterized in that: the inside that the lower end of the valve rod is located at valve body is fixedly connected with flap, the upper end of the valve seat and the position of flap
It sets corresponding position and is provided with through-hole, the through-hole matches with flap；The flap includes the first sealing block, the second sealing block and third
Sealing block, first sealing block, the second sealing block and third sealing block from successively successively decreasing to small greatly, first sealing block
Upper end is fixed at the lower end of valve rod, and the upper end of second sealing block is fixed at the lower end of the first sealing block, described
The upper end of third sealing block is fixed at the lower end of the second sealing block, and the inner wall of the through-hole successively offers from top to bottom
One sealing hole, the second sealing hole and third sealing hole, first sealing hole, the second sealing hole and third sealing hole are respectively with
One sealing block, the second sealing block and third sealing block match, and the bottom of first sealing hole is equipped with sealing structure；It is described close
Seal structure includes the Gask-O-Seal that the first sealing hole bottom is arranged in, and the bottom of first sealing hole offers multiple recessed
Slot, multiple grooves are arranged in a ring, and the inside of multiple grooves slidably connects mobile bar, multiple mobile bars
One end pass through and be fixedly connected at spring and the slot bottom of groove, the other end of multiple mobile bars extends respectively to correspond to recessed
The outside of slot and be fixedly connected on the downside of Gask-O-Seal；The inner wall of the valve body is equipped with corrosion-resistant coating.
2. according to claim 1 anticorrosion and can reduce the shut-off valve of sealed pressure, it is characterised in that: described
Valve seat is made of aluminium bronze.
3. according to claim 1 anticorrosion and can reduce the shut-off valve of sealed pressure, it is characterised in that: described
The side wall lower ends of first sealing block, the second sealing block and third sealing block are arcwall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821673831.5U CN209084028U (en) | 2018-10-16 | 2018-10-16 | It is a kind of anticorrosion and can to reduce the shut-off valve of sealed pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821673831.5U CN209084028U (en) | 2018-10-16 | 2018-10-16 | It is a kind of anticorrosion and can to reduce the shut-off valve of sealed pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209084028U true CN209084028U (en) | 2019-07-09 |
Family
ID=67119356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821673831.5U Expired - Fee Related CN209084028U (en) | 2018-10-16 | 2018-10-16 | It is a kind of anticorrosion and can to reduce the shut-off valve of sealed pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209084028U (en) |
-
2018
- 2018-10-16 CN CN201821673831.5U patent/CN209084028U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190709 Termination date: 20211016 |