CN209196145U - A kind of cut-off adjusting Slow Close non-return multifunction valve - Google Patents
A kind of cut-off adjusting Slow Close non-return multifunction valve Download PDFInfo
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- CN209196145U CN209196145U CN201822201796.3U CN201822201796U CN209196145U CN 209196145 U CN209196145 U CN 209196145U CN 201822201796 U CN201822201796 U CN 201822201796U CN 209196145 U CN209196145 U CN 209196145U
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Abstract
The utility model discloses a kind of cut-offs to adjust Slow Close non-return multifunction valve, a kind of cut-off adjusting Slow Close non-return multifunction valve, including valve body, the inside of valve body is equipped with flap, the shape of flap is collar plate shape, and sealing surface designs for flat seal, can reduce the requirement to machining accuracy in this way, it can also make flap and sealing surface of seat that can ensure that good sealing performance with automatic attaching simultaneously.Valve clack sealing surface and valve base sealing surface build-up welding corrosion-proof wear hard alloy, significantly increase the service life of valve.Cut-off type flap uses whole plane structure, and adjustment type flap regulator site is according to requirements for pipes difference using cone or parabolic type.The design of flap guide rod upper end has external screw thread, this external screw thread is less than guiding shank diameter, so that with positioning to piston, external screw thread has flat to be designed to cooperation lock washer, to prevent the loosening of guiding stem jam nut.Guide rod interior design has the hole with valve rod cooperation.Guide rod surfaces externally and internally carries out reasonable cure process, and has high surface smoothness, to reach wear-and corrosion-resistant, improves service life.
Description
Technical field
The utility model relates to a kind of multifunction valve, in particular to a kind of cut-off adjusts Slow Close non-return multifunction valve.
Background technique
650 DEG C are not higher than suitable for temperature, the outlet of Boiler Steam main pipeline, pump discharge end etc. need to install check-valves and cut
The occasion of disconnected valve or regulating valve, be in the earliest design of such occasion be equipped with a stop valve (such as gate valve, shut-off valve), then
One check-valves (such as lift check valve, swing check valve) is installed, it is real later as the invention of screw down nonreturn valve designs
It is dual-purpose to have showed a valve, has saved overall cost.But conventional type screw down nonreturn valve execute non-return movement close when due to close
Excessive velocities are easy to appear water hammer, easily damage to pipeline and the pump housing；It is shaken in open state flap by media impingement
It is dynamic very big, also greatly shorten the service life of valve when causing duct noise Datong District.Cut-off, the adjusting, Slow Close of our company this time exploitation
Non-return multifunction valve is exactly the defect more than considering and to the one functional increase of traditional type screw down nonreturn valve and revolution
The innovation and improvement of property.Tool investigate understand, our company this time develop cut-off, adjusting, the Slow Close non-return multifunction valve country not yet
There are such similar products in the manufacturer of same design, only external one two well-known producers.In terms of above situation, exploitation section
Stream, cut-off, adjusting, Slow Close non-return multifunction valve are that have extremely important realistic meaning and economic significance, are to promote China's valve
The big event of door manufacturing technology development.
Utility model content
The utility model mainly solve the prior art present in technical problem, thus provide one kind ensure that it is good
Sealing performance significantly increases the service life of valve；To reach wear-and corrosion-resistant, pipeline medium can be substantially reduced after termination of pumping
Impact of water hammer caused by flowing backwards, the cut-off for playing the role of protective conduit and the pump housing adjust Slow Close non-return multifunction valve.
Above technical problems of the utility model are mainly solved by the following technical scheme:
A kind of cut-off adjusting Slow Close non-return multifunction valve, including valve body, the inside of valve body are equipped with flap, the shape of flap
For collar plate shape, step-like damping piston cylinder is equipped in the valve body on the downside of valve deck, damping piston cylinder lower end is equipped with circular hole, flap
Lower side seals cover closes valve seat；Flap upper end is flap guide rod；Flap guide rod passes through the circular hole of damping piston cylinder lower end, valve
Valve guide rod upper end is cased with damping piston plate and is fixed by locking nut and the external screw thread of flap guide rod upper end, and external screw thread is small
It is oriented to shank diameter in flap, so that with positioning to piston plate, external screw thread has flat shape design cooperation lock washer to use
To prevent locking nut from loosening；Damping piston plate and damping piston cylinder are cooperated using small―gap suture, damping piston cylinder upper periphery and
Have several apertures on lower end plane, the fluid in piston cylinder and have the function that damping for circulating, be flap slowly rise or
Decline.This aperture is calculated according to the parameters such as pressure medium and caliber size, velocity of medium and is determined.Flap guide rod and damping piston
Plate cross section is circle, and the cross-sectional diameter of damping piston plate is greater than the cross-sectional diameter of flap guide rod；Damping piston board
At the step of damping piston cylinder interior, damping piston plate is mating to be provided with lock washer, damping piston plate and passes through damping and lives
The flap guide rod of plug cylinder circular hole can move up and down in damping piston cylinder.
Cut-off by adopting the above technical scheme adjusts Slow Close non-return multifunction valve, multi-purpose valve and can make valve usability
It can greatly improve, overall cost substantially reduces, and can substantially reduce pipeline medium and flow backwards generated impact of water hammer after termination of pumping, rise
To the effect of protective conduit and the pump housing；Flap is collar plate shape structure, and sealing surface designs for flat seal, can be reduced in this way to adding
The requirement of work precision, while can also make flap and sealing surface of seat that can ensure that good sealing performance with automatic attaching.Flap
Sealing surface and valve base sealing surface build-up welding corrosion-proof wear hard alloy, significantly increase the service life of valve.Cut-off type flap
Using whole plane structure, adjustment type flap regulator site is according to requirements for pipes difference using cone or parabolic type.Flap is led
There is external screw thread to the design of bar upper end, this external screw thread is less than guiding shank diameter, so that with positioning to piston, external screw thread has flat
Side's design cooperation lock washer is used to prevent locking nut from loosening.Guide rod interior design has the hole with valve rod cooperation.Guide rod
Surfaces externally and internally carries out reasonable cure process, and has high surface smoothness, to reach wear-and corrosion-resistant, improves service life.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural representation that the utility model cut-off adjusts Slow Close non-return multifunction valve handwheel driving stem embodiment
Figure.
Fig. 2 is the valve flap structure schematic diagram of cut-off type described in the utility model.
Fig. 3 is the valve flap structure schematic diagram of linear regulation type described in the utility model.
Fig. 4 is the valve flap structure schematic diagram of equal percentage adjustment type described in the utility model.
Fig. 5 is that the structure of the utility model cut-off adjusting Slow Close non-return multifunction valve handwheel driving stem nut embodiment is shown
It is intended to.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
As shown in Figures 1 to 4, a kind of cut-off adjusts Slow Close non-return multifunction valve, including valve body 1, the inside installation of valve body 1
There is flap 2, the shape of flap 2 is collar plate shape, is equipped with step-like damping piston cylinder 4, damping in the valve body 1 on the downside of valve deck 16
4 lower end of piston cylinder is equipped with circular hole, and 2 lower side seals cover of flap closes valve seat；2 upper end of flap is flap guide rod；Flap guide rod
Circular hole across 4 lower end of damping piston cylinder, flap guide rod upper end are cased with damping piston plate 6 and by locking nut 8 and flaps
The external screw thread of guide rod upper end is fixed, and external screw thread is less than flap and is oriented to shank diameter, so as to being positioned to piston, external screw thread
There is flat shape design cooperation lock washer to be used to prevent locking nut 8 from loosening；Damping piston plate 6 and damping piston cylinder 4 use
Small―gap suture cooperates, and has several apertures on 4 upper periphery of damping piston cylinder and lower end plane, for circulating the fluid in piston cylinder simultaneously
Have the function that damping, is that flap slowly rises or falls.This aperture is joined according to pressure medium and caliber size, velocity of medium etc.
Number, which calculates, to be determined；Flap guide rod and 6 cross section of damping piston plate are circle, and the cross-sectional diameter of damping piston plate 6 is greater than valve
The cross-sectional diameter of valve guide rod；Damping piston plate 6 is stuck at the step inside damping piston cylinder 4, and damping piston plate 6, which is matched, to be arranged
It is equipped with lock washer 7, damping piston plate 6 and flap guide rod across 4 circular hole of damping piston cylinder can be in damping piston cylinders 4
It moves up and down.The shape of flap 2 is collar plate shape, can reduce the requirement to machining accuracy in this way, while can also make flap 2 and valve
Seat sealing surface can ensure that good sealing performance with automatic attaching.Valve clack sealing surface and valve base sealing surface build-up welding corrosion-proof wear
Hard alloy significantly increases the service life of valve.Cut-off type flap uses whole plane structure, adjustment type flap adjustment portion
Position is according to requirements for pipes difference using cone or parabolic type.
Flap guide rod surfaces externally and internally carries out reasonable cure process, and has high surface smoothness, to reach wear-resisting resistance to
Erosion, improves service life.
The circular hole inner sidewall that damping piston cylinder 4 is contacted with flap guide rod is equipped with axle sleeve 5, to guarantee what flap 2 was gone up and down
Flexibility.
Damping spring 3 is cased on valve rod 9,3 upper end of damping spring is described to damping piston cylinder 4, lower end to flap 2
It is corresponding on damping piston cylinder 4 and flap 2 to be equipped with spring positioning step, with positioning and guiding is played the role of to spring, protect
Demonstrate,prove the leakproofness and cushioning effect of valve.
9 lower end of the valve rod design has the smooth bar part with the cooperation of flap guide rod, has in smooth bar part and valve deck 16
The upper sealing structure of cooperation.
Fastening screw 19 is equipped between the top and valve deck 16 of damping piston cylinder 4；The top of valve body 1 and valve deck 16 pass through spiral shell
Column 17 and stud hex nut 18 connect；Gasket seal 15 is equipped between the top and valve deck 16 of valve body 1.
Eyelet bolt 13, the lower end of eyelet bolt 13 are equipped between the stuffing-box outer wall and gland 11 of the valve deck 16
Pin shaft 12 is equipped between the stuffing-box outer wall of valve deck 16, eyelet bolt 13 passes through the bolt hole of gland 11；Eyelet bolt
13 upper end is equipped with eyelet bolt hex nut 14, and eyelet bolt hex nut 14 is connected on eyelet bolt 13；So passing through
Eyelet bolt 13 and eyelet bolt hex nut 14 can compress gland 11, and further compression filler 10 reaches to valve rod 9
Sealing.
If Fig. 1 valve rod 9 uses handwheel to directly drive the rotary lifting-type structure of valve rod, i.e., 9 screw thread of valve rod is using dextrorotation ladder
Shape screw thread is connect with valve stem nut 20, and valve stem nut 20 is fixed on 16 upper end of valve deck；20 upper end of valve stem nut has and 9 dextrorotation of valve rod
The valve rod locking device 21 of trapezoidal thread connection, is used to Locked valve desired position；9 upper end of valve rod is equipped with 22 He of handwheel
The handwheel locknut 23 of fixed handwheel 22, by handwheel 22 apply torque come with ovable valve stem 9 and be further driven to flap 2 up and down
Movement is to realize the operation to valve.
Such as the lifting structure that Fig. 5, valve rod 9 make valve rod mobile using 22 driving stem nut of handwheel, 9 screw thread of valve rod
It is connect using left-handed trapezoidal thread with valve stem nut 20, and with the rotation of the limitation valve rod of stem guiding plate 24 and with about 9 valve rod
Mobile, the matching part of valve rod 9 and stem guiding bar 24 mills flat, and the screw of stem guiding bar 24 or bolt 25 are fixed, and
It is matched in end using the protrusion of 16 bracket of groove and valve deck；Valve stem nut 20 is mounted on 16 upper end of valve deck, valve stem nut 20
Boss is equipped with needle thrust bearing 26 up and down, and is fixed in 16 upper recess of valve deck with bearing gland 27；On valve stem nut 20
There is the valve rod locking device 21 connected with the left-handed trapezoidal thread of valve rod 9 at end, is used to Locked valve desired position；9 upper end of valve rod
It is equipped with the handwheel locknut 23 of handwheel 22 and fixed handwheel 22, to go forward side by side one with ovable valve stem 9 by applying torque to handwheel 22
Step drive flap 2 moves up and down to realize the operation to valve.
The utility model cut-off is adjusted Slow Close non-return multifunction valve and is subtracted using single flow, through type or angie type circular channel
Slow-closing type flap design is shaken, it can be achieved that the functions such as cut-off, adjusting, non-return；This valve base and valve clack sealing surface are stainless using built-up welding
The corrosion-proof wears material such as steel, hard alloy.This valve, which designs, damping Slow Close hydraulic cylinder, on piston cylinder upper periphery and lower end plane
There is aperture, flap Slow Close and damping is haved the function that by the damping to incompressible fluid in hydraulic cylinder, while design has
Spring arrangement increases the leakproofness and damping property of valve.Flap design is at plane cut-off type flap, cone or parabolic type
Flap realizes different regulatory functions.The multifunction valve is to stop valve+check-valves combination and traditional cut-off non-return valve performance
The promotion of revolution improves the quality of product, increases valve function, reduces overall cost, makes its application more
Add extensive and safe.
The utility model cut-off adjusts Slow Close non-return multifunction valve, multi-purpose valve and valve service performance can be made to mention significantly
Height, overall cost substantially reduce, and can substantially reduce pipeline medium and flow backwards generated impact of water hammer after termination of pumping, play protection pipe
The effect in road and the pump housing, while the noise for running valve can reduce by 50% or more, and the service life can be made to increase by 1~2 times.
The utility model cut-off adjusts Slow Close non-return multifunction valve, and flap is collar plate shape structure, and sealing surface is flat seal
Design, can reduce the requirement to machining accuracy in this way, while can also make flap and sealing surface of seat that can guarantee with automatic attaching
Good sealing performance.Valve clack sealing surface and valve base sealing surface build-up welding corrosion-proof wear hard alloy, significantly increase valve
Service life.Cut-off type flap uses whole plane structure, and adjustment type flap regulator site is according to requirements for pipes difference using circle
Taper or parabolic type.The design of flap guide rod upper end has external screw thread, this external screw thread is less than guiding shank diameter, so as to work
Capable positioning is filled in, external screw thread has flat design cooperation lock washer to be used to prevent locking nut from loosening.Guide rod interior design has
With the hole of valve rod cooperation.Guide rod surfaces externally and internally carries out reasonable cure process, and has high surface smoothness, to reach wear-resisting
It is anti-corrosion, it improves service life.
The development of this patent product is to stop valve+check-valves combination and traditional cut-off non-return valve performance revolution
Property promotion, improve the quality of product, increase valve function, reduce overall cost, make its be more widely applied and
Safety.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, any change or replacement expected without creative work be should be covered within the scope of the utility model.
Therefore, the protection scope of the utility model should be determined by the scope of protection defined in the claims.
Claims (7)
1. a kind of cut-off adjusts Slow Close non-return multifunction valve, including valve body (1), it is characterised in that: the inside of valve body (1) is equipped with
Flap (2), the shape of flap (2) are collar plate shape, are equipped with step-like damping piston cylinder on the downside of the interior valve deck of the valve body (1) (16)
(4), damping piston cylinder (4) lower end is equipped with circular hole, and flap (2) lower side seals cover closes valve seat；Flap (2) upper end is flap guiding
Bar；Flap guide rod passes through the circular hole of damping piston cylinder (4) lower end, and flap guide rod upper end is cased with damping piston plate (6) and leads to
It crosses locking nut (8) and the external screw thread of flap guide rod upper end is fixed, external screw thread is less than flap and is oriented to shank diameter, and external screw thread has flat
Square shape design cooperation lock washer (7) is used to prevent locking nut (8) from loosening；Damping piston plate (6) and damping piston cylinder (4)
Cooperated using small―gap suture, there are several apertures on damping piston cylinder (4) upper periphery and lower end plane；Flap guide rod and damping are lived
Seben (6) cross section is circle, and the cross-sectional diameter of damping piston plate (6) is greater than the cross-sectional diameter of flap guide rod；Damping
Piston plate (6) is stuck at the internal step of damping piston cylinder (4), and damping piston plate (6) is mating to be provided with lock washer (7), resistance
Buddhist nun's piston plate (6) and the flap guide rod for passing through damping piston cylinder (4) circular hole can move up and down in damping piston cylinder (4).
2. a kind of cut-off according to claim 1 adjusts Slow Close non-return multifunction valve, it is characterised in that: the damping piston
The inner sidewall that cylinder (4) is contacted with flap guide rod is equipped with axle sleeve (5), is cased with damping spring (3) on valve rod (9), the damping bullet
Spring (3) upper end is corresponding on the damping piston cylinder (4) and flap (2) to be equipped with to damping piston cylinder (4), lower end to flap (2)
Spring positioning step.
3. a kind of cut-off according to claim 2 adjusts Slow Close non-return multifunction valve, it is characterised in that: the valve rod (9)
Lower end design has the smooth bar part with the cooperation of flap guide rod, there is the upper sealing knot with valve deck (16) cooperation in smooth bar part
Structure.
4. a kind of cut-off according to claim 3 adjusts Slow Close non-return multifunction valve, it is characterised in that: the valve deck (16)
Stuffing-box equipped with valve rod hole and receiving filler (10) through valve rod (9), filler (10) top have gland (11)；
Fastening screw (19) are equipped between the top and valve deck (16) of damping piston cylinder (4)；Valve body (1) and valve deck (16) pass through spiral shell
Column (17) and stud hex nut (18) connection, are equipped with gasket seal (15) between the top and valve deck (16) of valve body (1).
5. a kind of cut-off according to claim 4 adjusts Slow Close non-return multifunction valve, it is characterised in that: the valve deck (16)
Stuffing-box outer wall and gland (11) between be equipped with eyelet bolt (13), the lower end of eyelet bolt (13) and valve deck (16)
Pin shaft (12) are equipped between stuffing-box outer wall, eyelet bolt (13) passes through the bolt hole of gland (11)；Eyelet bolt (13)
Upper end be equipped with eyelet bolt hex nut (14), eyelet bolt hex nut (14) is connected on eyelet bolt (13)；So
Gland (11) can be compressed by eyelet bolt (13) and eyelet bolt hex nut (14) and further compress filler (10)
Reach the sealing to valve rod (9)；Valve rod lower end design have with flap guide rod cooperation smooth bar part, have in smooth bar part and
The upper sealing structure of valve deck cooperation.
6. a kind of cut-off according to claim 5 adjusts Slow Close non-return multifunction valve, it is characterised in that:
The valve rod (9) directly drives the rotary lifting-type structure of valve rod using handwheel, i.e. valve rod (9) screw thread is trapezoidal using dextrorotation
Screw thread is connect with valve stem nut (20), and valve stem nut (20) is fixed on valve deck (16) upper end；Valve stem nut (20) upper end has and valve
The valve rod locking device (21) of bar (9) dextrorotation trapezoidal thread connection, is used to Locked valve desired position；Match valve rod (9) upper end
The handwheel locknut (23) for closing setting handwheel (22) and fixed handwheel (22), by applying torque to handwheel (22) come band ovable valve stem
(9) and it is further driven to the moving up and down to realize the operation to valve of flap (2).
7. a kind of cut-off according to claim 5 adjusts Slow Close non-return multifunction valve, it is characterised in that:
The lifting structure that the valve rod (9) makes valve rod mobile using handwheel (22) driving stem nut, valve rod (9) screw thread
It is connect using left-handed trapezoidal thread with valve stem nut (20), and with the rotation of stem guiding plate (24) limitation valve rod and with valve rod
(9) move up and down, the matching part of valve rod (9) and stem guiding bar (24) mills flat, stem guiding bar (24) screw or
Bolt (25) is fixed, and is matched in end using the protrusion of groove and valve deck (16) bracket；Valve stem nut (20) is mounted on valve
(16) upper end is covered, valve stem nut (20) boss is equipped with needle thrust bearing (26) up and down, and is fixed on valve with bearing gland (27)
It covers in (16) upper recess；There is the valve rod locking device connected with valve rod (9) left-handed trapezoidal thread in valve stem nut (20) upper end
(21), it is used to Locked valve desired position；Valve rod (9) upper end is equipped with the hand wheel lock of handwheel (22) and fixed handwheel (22)
Female (23) with ovable valve stem (9) and are further driven to moving up and down for flap (2) and realize by applying torque to handwheel (22)
Operation to valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822201796.3U CN209196145U (en) | 2018-12-26 | 2018-12-26 | A kind of cut-off adjusting Slow Close non-return multifunction valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822201796.3U CN209196145U (en) | 2018-12-26 | 2018-12-26 | A kind of cut-off adjusting Slow Close non-return multifunction valve |
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| Publication Number | Publication Date |
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| CN209196145U true CN209196145U (en) | 2019-08-02 |
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ID=67430417
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822201796.3U Active CN209196145U (en) | 2018-12-26 | 2018-12-26 | A kind of cut-off adjusting Slow Close non-return multifunction valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375096A (en) * | 2019-08-27 | 2019-10-25 | 江苏江恒阀业有限公司 | A kind of differential Slow Close Valve of angie type |
| CN113309858A (en) * | 2021-06-04 | 2021-08-27 | 浙江万龙机械有限公司 | Valve rod high-frequency opening and closing anti-shaking valve for ammonia |
| CN113521916A (en) * | 2021-07-05 | 2021-10-22 | 国家能源集团山东石横热电有限公司 | Piston type electromagnetic pulse valve with damping function |
| CN113669487A (en) * | 2021-08-04 | 2021-11-19 | 凯瑞特阀业有限公司 | Integral forged stop and check dual-purpose valve |
-
2018
- 2018-12-26 CN CN201822201796.3U patent/CN209196145U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375096A (en) * | 2019-08-27 | 2019-10-25 | 江苏江恒阀业有限公司 | A kind of differential Slow Close Valve of angie type |
| CN113309858A (en) * | 2021-06-04 | 2021-08-27 | 浙江万龙机械有限公司 | Valve rod high-frequency opening and closing anti-shaking valve for ammonia |
| CN113309858B (en) * | 2021-06-04 | 2023-06-23 | 浙江万龙机械有限公司 | Valve rod high-frequency opening and closing anti-shake valve for ammonia |
| CN113521916A (en) * | 2021-07-05 | 2021-10-22 | 国家能源集团山东石横热电有限公司 | Piston type electromagnetic pulse valve with damping function |
| CN113521916B (en) * | 2021-07-05 | 2022-08-19 | 国家能源集团山东石横热电有限公司 | Piston type electromagnetic pulse valve with damping function |
| CN113669487A (en) * | 2021-08-04 | 2021-11-19 | 凯瑞特阀业有限公司 | Integral forged stop and check dual-purpose valve |
| CN113669487B (en) * | 2021-08-04 | 2024-03-01 | 凯瑞特阀业集团有限公司 | Integral forging stop and check dual-purpose valve |
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