CN112984128A - Corrugated pipe flushing-free valve - Google Patents
Corrugated pipe flushing-free valve Download PDFInfo
- Publication number
- CN112984128A CN112984128A CN202110187796.6A CN202110187796A CN112984128A CN 112984128 A CN112984128 A CN 112984128A CN 202110187796 A CN202110187796 A CN 202110187796A CN 112984128 A CN112984128 A CN 112984128A
- Authority
- CN
- China
- Prior art keywords
- valve
- corrugated pipe
- cavity
- packing
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012856 packing Methods 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000000945 filler Substances 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- CBVWMGCJNPPAAR-HJWRWDBZSA-N (nz)-n-(5-methylheptan-3-ylidene)hydroxylamine Chemical compound CCC(C)C\C(CC)=N/O CBVWMGCJNPPAAR-HJWRWDBZSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/10—Spindle sealings with diaphragm, e.g. shaped as bellows or tube
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a corrugated pipe flushing-free valve, which relates to the technical field of valves and comprises a valve body assembly, a sealing assembly and an execution assembly; the valve body assembly comprises a valve body, a valve cover, a valve clack and a first valve rod; the valve body is provided with a first cavity, a second cavity, a first opening, a second opening and a third opening, the first opening of the valve body is fixedly connected with a valve cover, the valve clack is positioned in the first cavity and is connected with one end of a first valve rod, the other end of the first valve rod extends out of the valve cover, the second opening is communicated with a pipeline, the third opening is communicated with the pipeline, and the first cavity is communicated with the second cavity; the seal assembly includes a bellows, a packing assembly, and a base. The invention has the technical effects that the corrugated pipe is not contacted with the medium, and the corrugated pipe is prevented from being frequently washed by the medium.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a corrugated pipe flushing-free valve.
Background
The related corrugated pipe valve generally adopts an exposed corrugated pipe structure, a medium can continuously wash the corrugated pipe in the flowing process, the corrugated pipe can be completely deformed and destabilized under the acting force of the medium, and the service life of the corrugated pipe is greatly influenced.
The lower end of a related corrugated pipe valve is fixed on the lower valve rod, and in the process of up-and-down movement of the lower valve rod, the lower valve rod can generate bending moment in the opening or closing process due to the scouring of media to the corrugated pipe, so that the corrugated pipe is twisted, the corrugated pipe bears frequent torque moment, the corrugated pipe is failed, and the sealing cannot be realized.
Chinese utility model patent, publication number: CN201103694Y, announcement date: 2008.08.20, respectively; the special valve for the dangerous media of the corrugated pipe is characterized in that an annular dovetail groove is machined in the sealing surface part of a valve clack and a valve body, a polytetrafluoroethylene sealing ring is formed in the dovetail groove in an isobaric mode, the sealing performance is guaranteed, and the special valve has the defects that the corrugated pipe can be washed by the media, and the service life of the corrugated pipe is shortened.
Chinese utility model patent, publication number: CN210318559U, announcement date: 2020.04.14, respectively; the utility model discloses a bellows seal valve that bellows bore internal pressure, through bellows inner chamber and the intercommunication of valve body inner chamber, and the bellows inner chamber is separated with the valve body inner chamber, and the crest of bellows outside can not be shriveled by medium pressure, and its shortcoming lies in, the bellows inner chamber is washed by the medium, leads to the bellows to twist reverse, reduces the life of bellows.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention provides a corrugated pipe washing-free valve, aiming at the technical problem that a corrugated pipe in a corrugated pipe valve body is frequently washed by a medium.
2. Technical scheme
In order to solve the problems, the technical scheme provided by the invention is as follows:
a corrugated pipe flushing-free valve comprises a valve body assembly, a sealing assembly and an execution assembly;
the valve body assembly comprises a valve body, a valve cover, a valve clack and a first valve rod;
the valve body is provided with a first cavity, a second cavity, a first opening, a second opening and a third opening, the valve cover is fixedly connected to the first opening of the valve body, the valve flap is located in the first cavity, the valve flap is connected with one end of the first valve rod, the other end of the first valve rod extends out of the valve cover, the second opening is communicated with a pipeline, the third opening is communicated with the pipeline, and the first cavity is communicated with the second cavity;
the sealing assembly comprises a corrugated pipe, a packing assembly and a base;
the corrugated pipe, the packing assembly and the base are all sleeved outside the first valve rod, one end of the corrugated pipe is fixedly connected with the packing assembly, the other end of the corrugated pipe is fixedly connected with the base, the outer side of the base is in contact with the inner side of the valve cover, a dovetail groove is formed in the outer side of the base, and a sealing ring is arranged in the dovetail groove;
the execution assembly and one end, extending out of the valve cover, of the first valve rod are fixedly connected.
Optionally, the actuating assembly includes a second valve rod, a first nut, a connecting piece and a hand wheel;
second valve stem one end with first valve stem stretches out the one end of valve gap passes through connecting piece fixed connection, the other end of second valve stem with the hand wheel rotates to be connected, first nut cover is located the second valve stem outside, first nut with connect through a plurality of double-end stand between the valve gap.
Optionally, the first nut and the second valve stem are connected by a screw.
Optionally, double-end stand one end with valve gap threaded connection, the double-end stand other end with first nut passes through second nut fixed connection, the double-end stand with first nut junction is equipped with spring washer.
Optionally, the connecting piece comprises a first block and a second block;
the first piece with the cooperation of second piece forms flat potential hole and screw hole, first valve rod stretches out the one end of valve gap is equipped with flat potential post, second valve rod one end with first valve rod stretches out the one end contact of valve gap, the flat potential hole of connecting piece with the cooperation of flat potential post of first valve rod, first piece with the second piece passes through bolt fixed connection, the both ends of connecting piece with stud sliding connection.
Optionally, the stuffing assembly comprises a stuffing box, a stuffing and a stuffing cover;
the packing box is characterized in that one end of the packing box is fixedly connected with one end, far away from the base, of the corrugated pipe, a third cavity is formed between the packing box and the first valve rod, packing is arranged in the third cavity, and the other end of the packing box is fixedly connected with the packing cover.
Optionally, the inner diameter of the stuffing box is smaller than the outer diameter of the first shoulder of the first valve rod.
Optionally, the filler is flexible graphite or polytetrafluoroethylene.
Optionally, the angle α of the dovetail groove is 10 ° to 15 °.
Optionally, the valve body and the valve cover are connected through a bolt.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects: the corrugated pipe of the device is not contacted with the medium, so that the corrugated pipe is prevented from being frequently washed by the medium.
Drawings
Fig. 1 is a schematic structural diagram of a bellows valve according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a partial enlarged structure of the component A according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a connector according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a first valve stem according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a B-B section according to an embodiment of the present invention.
In the figure: 1. a valve body assembly; 11. a valve body; 111. a first cavity; 112. a second cavity; 113. a first opening; 114. a second opening; 115. a third opening; 12. a valve cover; 13. a valve flap; 14. a first valve stem; 141. flat potential columns; 142. a first shoulder; 2. a seal assembly; 21. a bellows; 22. a packing assembly; 221. a stuffing box; 222. a filler; 223. a filler cover; 23. a base; 231. a dovetail groove; 24. a seal ring; 3. an execution component; 31. a second valve stem; 32. a first nut; 33. a connecting member; 331. a first block; 332. a second block; 333. flat potential holes; 334. a threaded hole; 34. a hand wheel; 35. a double-ended upright post; 36. a second nut; 37. a spring washer.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
With reference to the attached figure 1-
The invention provides a corrugated pipe flushing-free valve which comprises a valve body assembly 1, a sealing assembly 2 and an execution assembly 3, wherein the valve body assembly comprises a valve body and a valve body;
the valve body assembly 1 comprises a valve body 11, a valve cover 12, a valve clack 13 and a first valve rod 14;
the valve body 11 is provided with a first cavity 111, a second cavity 112, a first opening 113, a second opening 114 and a third opening 115, the first opening 113 of the valve body 11 is fixedly connected with a valve cover 12, the valve flap 13 is positioned in the first cavity 111, the valve flap 13 is connected with one end of a first valve rod 14, the other end of the first valve rod 14 extends out of the valve cover 12, the second opening 114 is communicated with a pipeline, the third opening 115 is communicated with the pipeline, and the first cavity 111 is communicated with the second cavity 112;
the sealing assembly 2 comprises a corrugated pipe 21, a packing assembly 22 and a base 23;
the corrugated pipe 21, the packing component 22 and the base 23 are all sleeved outside the first valve rod 14, one end of the corrugated pipe 21 is fixedly connected with the packing component 22, the other end of the corrugated pipe 21 is fixedly connected with the base 23, the outer side of the base 23 is in contact with the inner side of the valve cover 12, a dovetail groove 231 is arranged on the outer side of the base 23, and a sealing ring 24 is arranged in the dovetail groove 231;
the actuating assembly 3 and one end of the first valve rod 14 extending out of the valve cover 12 are fixedly connected.
Closing the valve body 11, adjusting the executing assembly 3, so that the first valve rod 14 moves towards the end of the valve body 11, and driving the valve flap 13 to move towards the end of the valve body 11, at this time, the bellows 21 is compressed, and in the compression process, the sealing ring 24 located in the dovetail groove 231 on the base 23 is always in close contact with the inner wall of the valve cover 12 (ensuring that the bellows 21 is not in contact with the medium, and preventing the bellows 21 from being frequently washed away by the medium), until the valve flap 13 is matched with the opening between the first cavity 111 and the second cavity 112, and sealing is completed. At this time, the medium in the pipe enters the second chamber 112 through the second opening 114 of the valve body 11 and then stops flowing, and the valve functions as a stop.
The valve body 11 is opened, the actuating assembly 3 is adjusted, so that the first valve rod 14 moves away from the end of the valve body 11, and the valve flap 13 is driven to move away from the end of the valve body 11, at this time, the corrugated pipe 21 extends, and in the extending process, the sealing ring 24 in the dovetail groove 231 on the base 23 is always in close contact with the inner wall of the valve cover 12 (the corrugated pipe 21 is ensured not to be in contact with a medium, and the corrugated pipe 21 is prevented from being frequently washed by the medium), until the valve flap 13 is completely separated from the opening between the first cavity 111 and the second cavity 112. At this time, the medium in the pipe enters the second chamber 112 through the second opening 114 of the valve body 11, enters the first chamber 111, and finally flows out of the valve body 11 through the third opening 115.
The sealing ring groove is designed into a dovetail groove 231, the sealing ring 24 is extruded and deformed to be installed in the dovetail groove 231 and is not prone to falling off, the sealing ring 24 is extruded when the base 23 is lifted, the clearance space of the dovetail groove 231 is larger than that of a common right-angle groove, and the service life of the sealing ring 24 is prolonged.
Specifically, the actuating assembly 3 comprises a second valve rod 31, a first nut 32, a connecting piece 33 and a hand wheel 34;
one end of the second valve rod 31 is fixedly connected with one end of the first valve rod 14 extending out of the valve cover 12 through a connecting piece 33, the other end of the second valve rod 31 is rotatably connected with a hand wheel 34, the first nut 32 is sleeved on the outer side of the second valve rod 31, and the first nut 32 is connected with the valve cover 12 through a plurality of double-head upright posts 35.
Wherein the second valve rod 31 is driven to ascend or descend in the first nut 32 by rotating the hand wheel 34, the second valve rod 31 is driven to ascend or descend in the first valve rod 14 by the connecting piece 33, wherein the double-headed pillar 35 is used for fixing the distance between the bonnet 12 and the first nut 32, that is, for supporting the first nut 32.
Specifically, in order to ensure the connection and facilitate the disassembly and assembly, the first nut 32 and the second valve stem 31 are connected by a screw.
Specifically, for the connection reliably, the dismouting of being convenient for, double-end stand 35 one end and valve gap 12 threaded connection, the double-end stand 35 other end and first nut 32 pass through second nut 36 fixed connection, and the double-end stand 35 is equipped with spring washer 37 with first nut 32 junction, when adjusting, reduces vibrations, improves the reliability of valve.
Specifically, the connecting member 33 includes a first block 331 and a second block 332;
the first block 331 and the second block 332 are matched to form a flat potential hole 333 and a threaded hole 334, one end of the first valve rod 14, extending out of the valve cover 12, is provided with a flat potential post 141, one end of the second valve rod 31 is in contact with one end of the first valve rod 14, extending out of the valve cover 12, the flat potential hole 333 of the connecting piece 33 is matched with the flat potential post 141 of the first valve rod 14, the first block 331 and the second block 332 are fixedly connected through bolts, and two ends of the connecting piece 33 are in sliding connection with the double-headed upright post 35.
Wherein the second valve stem 31 is rotated so that one end of the second valve stem 31 contacts one end of the first valve stem 14, the coupling member 33 is installed, the first block 331 and the second block 332 are fixed using bolts after the flat hole 333 of the coupling member 33 is engaged with the flat post 141 of the first valve stem 14, and the coupling member 33 slides along the outer circumference of the double-headed post 35 when the second valve stem 31 is raised or lowered. The first valve rod 14 is provided with a flat column 141 to prevent the first valve rod 14 from twisting during lifting.
Specifically, the stuffing assembly 22 includes a stuffing box 221, a stuffing 222, and a stuffing cover 223;
one end of the stuffing box 221 is fixedly connected with one end, far away from the base 23, of the corrugated pipe 21, a third cavity is formed between the stuffing box 221 and the first valve rod 14, stuffing 222 is arranged in the third cavity, and the other end of the stuffing box 221 is fixedly connected with the stuffing cover 223.
When the bellows 21 fails, the packing assembly 22 acts as a seal to prevent the medium from running down the first valve body 11 and out of the valve through the bonnet 12. Wherein, in the third cavity between the stuffing box 221 and the first valve rod 14, a plurality of packings 222 are sequentially put in, and then the packings 222 are pressed by a packing cover 223, so as to play a role of auxiliary sealing.
Specifically, the inner diameter of the stuffing box 221 is smaller than the outer diameter of the first shoulder 142 of the first valve rod 14, and when the first valve rod 14 touches the stuffing box 221 in the rising process, the first valve rod 14 cannot rise continuously, so that the corrugated pipe 21 can be protected, and the service life of the corrugated pipe 21 is prolonged. When the valve is closed, the valve flap 13 and the openings between the first chamber 111 and the second chamber 112, the first valve rod 14 cannot descend any further, and the position where the valve flap 13 is closed is the stroke of the stretching amount of the bellows 21.
Specifically, in order to provide good sealing performance for the filler 222, the filler 222 is flexible graphite or polytetrafluoroethylene. Wherein, the flexible graphite has no radiation, no pollution and high temperature resistance; the polytetrafluoroethylene has the advantages of corrosion resistance, no toxicity and high lubrication.
Specifically, in order to ensure that the dovetail groove 231 has a suitable clearance space to increase the service life of the seal ring 24, the angle α of the dovetail groove 231 is 10 ° to 15 °. Specifically, 10 °, 12 °, 15 °, or the like can be taken.
Specifically, the valve body 11 and the valve cover 12 are connected by bolts for reliable connection and convenient disassembly and assembly.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. A corrugated pipe flushing-free valve is characterized by comprising a valve body assembly, a sealing assembly and an execution assembly;
the valve body assembly comprises a valve body, a valve cover, a valve clack and a first valve rod;
the valve body is provided with a first cavity, a second cavity, a first opening, a second opening and a third opening, the valve cover is fixedly connected to the first opening of the valve body, the valve flap is located in the first cavity, the valve flap is connected with one end of the first valve rod, the other end of the first valve rod extends out of the valve cover, the second opening is communicated with a pipeline, the third opening is communicated with the pipeline, and the first cavity is communicated with the second cavity;
the sealing assembly comprises a corrugated pipe, a packing assembly and a base;
the corrugated pipe, the packing assembly and the base are all sleeved outside the first valve rod, one end of the corrugated pipe is fixedly connected with the packing assembly, the other end of the corrugated pipe is fixedly connected with the base, the outer side of the base is in contact with the inner side of the valve cover, a dovetail groove is formed in the outer side of the base, and a sealing ring is arranged in the dovetail groove;
the execution assembly and one end, extending out of the valve cover, of the first valve rod are fixedly connected.
2. The bellows no-flush valve of claim 1, wherein the actuator assembly comprises a second stem, a first nut, a connector, and a handwheel;
second valve stem one end with first valve stem stretches out the one end of valve gap passes through connecting piece fixed connection, the other end of second valve stem with the hand wheel rotates to be connected, first nut cover is located the second valve stem outside, first nut with connect through a plurality of double-end stand between the valve gap.
3. The bellows no-flush valve of claim 2, wherein the connection between the first nut and the second stem is a threaded connection.
4. The corrugated pipe flushing-free valve as claimed in claim 2, wherein one end of the double-headed upright post is in threaded connection with the valve cover, the other end of the double-headed upright post is fixedly connected with the first nut through a second nut, and a spring washer is arranged at the joint of the double-headed upright post and the first nut.
5. A bellows no-flush valve according to claim 2, wherein the connector comprises a first piece and a second piece;
the first piece with the cooperation of second piece forms flat potential hole and screw hole, first valve rod stretches out the one end of valve gap is equipped with flat potential post, second valve rod one end with first valve rod stretches out the one end contact of valve gap, the flat potential hole of connecting piece with the cooperation of flat potential post of first valve rod, first piece with the second piece passes through bolt fixed connection, the both ends of connecting piece with stud sliding connection.
6. A bellows no-flush valve according to claim 1, wherein the packing assembly comprises a stuffing box, a packing, and a packing cap;
the packing box is characterized in that one end of the packing box is fixedly connected with one end, far away from the base, of the corrugated pipe, a third cavity is formed between the packing box and the first valve rod, packing is arranged in the third cavity, and the other end of the packing box is fixedly connected with the packing cover.
7. The bellows no-flush valve of claim 6, wherein an inner diameter of the stuffing box is smaller than an outer diameter of the first shoulder of the first stem.
8. A bellows no-flush valve according to claim 6, wherein the filler is flexible graphite or polytetrafluoroethylene.
9. A bellows no-flush valve according to claim 1, wherein the dovetail groove has an angle α of 10 ° to 15 °.
10. The bellows no-flush valve of claim 1, wherein the valve body and the valve cover are bolted together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110187796.6A CN112984128A (en) | 2021-02-18 | 2021-02-18 | Corrugated pipe flushing-free valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110187796.6A CN112984128A (en) | 2021-02-18 | 2021-02-18 | Corrugated pipe flushing-free valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112984128A true CN112984128A (en) | 2021-06-18 |
Family
ID=76393694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110187796.6A Pending CN112984128A (en) | 2021-02-18 | 2021-02-18 | Corrugated pipe flushing-free valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112984128A (en) |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946668Y (en) * | 2006-09-18 | 2007-09-12 | 四川固特阀门制造有限公司 | Chlorine medium dedicated valve |
| CN201259014Y (en) * | 2008-08-22 | 2009-06-17 | 安徽省屯溪高压阀门有限公司 | Large caliber stop valve |
| CN201326823Y (en) * | 2008-12-18 | 2009-10-14 | 江苏明江阀业有限公司 | Corrugated pipe stop valve for chlorine |
| CN101701632A (en) * | 2009-11-27 | 2010-05-05 | 浙江万龙机械有限公司 | Bellows stop valve |
| CN201554874U (en) * | 2009-11-27 | 2010-08-18 | 浙江万龙机械有限公司 | Anti-rotary block used for corrugated pipe valve |
| CN201554865U (en) * | 2009-11-27 | 2010-08-18 | 安徽省屯溪高压阀门有限公司 | Stop valve for corrugated pipe |
| CN202927062U (en) * | 2012-11-05 | 2013-05-08 | 浙江中泰阀门有限公司 | Corrugated pipe stop valve |
| CN103277526A (en) * | 2013-06-20 | 2013-09-04 | 江苏明江阀业有限公司 | Pneumatic bellows adjusting valve for chlor-alkali |
| CN104696585A (en) * | 2015-03-30 | 2015-06-10 | 南通市天源阀门制造有限公司 | Multi-protection corrugated pipe stop valve for chlorine |
| CN105443782A (en) * | 2015-12-25 | 2016-03-30 | 西安航天远征流体控制股份有限公司 | Corrugated tube stop valve |
| CN105485351A (en) * | 2016-01-19 | 2016-04-13 | 浙江纽顿流体控制有限公司 | Medium-scouring-free corrugated pipe stop valve |
| CN106969158A (en) * | 2017-05-25 | 2017-07-21 | 五洲阀门股份有限公司 | A kind of high-temperature bellow valve |
| CN108426038A (en) * | 2018-05-09 | 2018-08-21 | 盐城市大昌石化设备有限公司 | A kind of high-pressure resistant corrugated pipe shut-off valve |
| CN108775406A (en) * | 2018-08-21 | 2018-11-09 | 江苏金晟元特种阀门股份有限公司 | High-performance nano coating corrugated tube valve special for chlorine |
| CN208138574U (en) * | 2018-03-30 | 2018-11-23 | 无锡升滕半导体技术有限公司 | A kind of general bellows stop valve |
| CN208565787U (en) * | 2018-08-06 | 2019-03-01 | 德维阀门铸造（苏州）股份有限公司 | A kind of angle stop valves of dual-seal |
| CN209569381U (en) * | 2018-12-07 | 2019-11-01 | 四川格林流体控制设备有限公司 | A kind of high temperature resistant molten salt shut-off valve |
| CN209818765U (en) * | 2019-05-12 | 2019-12-20 | 纽顿流体科技有限公司 | Valve special for chlorine |
| CN111765253A (en) * | 2020-06-16 | 2020-10-13 | 河南陶恩机械有限公司 | Corrugated pipe stop valve with double-valve-clack structure |
| CN211875116U (en) * | 2020-03-24 | 2020-11-06 | 浙江欧罗泰克阀门有限公司 | Quadruple-sealing corrugated pipe stop valve special for chlorine |
-
2021
- 2021-02-18 CN CN202110187796.6A patent/CN112984128A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946668Y (en) * | 2006-09-18 | 2007-09-12 | 四川固特阀门制造有限公司 | Chlorine medium dedicated valve |
| CN201259014Y (en) * | 2008-08-22 | 2009-06-17 | 安徽省屯溪高压阀门有限公司 | Large caliber stop valve |
| CN201326823Y (en) * | 2008-12-18 | 2009-10-14 | 江苏明江阀业有限公司 | Corrugated pipe stop valve for chlorine |
| CN101701632A (en) * | 2009-11-27 | 2010-05-05 | 浙江万龙机械有限公司 | Bellows stop valve |
| CN201554874U (en) * | 2009-11-27 | 2010-08-18 | 浙江万龙机械有限公司 | Anti-rotary block used for corrugated pipe valve |
| CN201554865U (en) * | 2009-11-27 | 2010-08-18 | 安徽省屯溪高压阀门有限公司 | Stop valve for corrugated pipe |
| CN202927062U (en) * | 2012-11-05 | 2013-05-08 | 浙江中泰阀门有限公司 | Corrugated pipe stop valve |
| CN103277526A (en) * | 2013-06-20 | 2013-09-04 | 江苏明江阀业有限公司 | Pneumatic bellows adjusting valve for chlor-alkali |
| CN104696585A (en) * | 2015-03-30 | 2015-06-10 | 南通市天源阀门制造有限公司 | Multi-protection corrugated pipe stop valve for chlorine |
| CN105443782A (en) * | 2015-12-25 | 2016-03-30 | 西安航天远征流体控制股份有限公司 | Corrugated tube stop valve |
| CN105485351A (en) * | 2016-01-19 | 2016-04-13 | 浙江纽顿流体控制有限公司 | Medium-scouring-free corrugated pipe stop valve |
| CN106969158A (en) * | 2017-05-25 | 2017-07-21 | 五洲阀门股份有限公司 | A kind of high-temperature bellow valve |
| CN208138574U (en) * | 2018-03-30 | 2018-11-23 | 无锡升滕半导体技术有限公司 | A kind of general bellows stop valve |
| CN108426038A (en) * | 2018-05-09 | 2018-08-21 | 盐城市大昌石化设备有限公司 | A kind of high-pressure resistant corrugated pipe shut-off valve |
| CN208565787U (en) * | 2018-08-06 | 2019-03-01 | 德维阀门铸造（苏州）股份有限公司 | A kind of angle stop valves of dual-seal |
| CN108775406A (en) * | 2018-08-21 | 2018-11-09 | 江苏金晟元特种阀门股份有限公司 | High-performance nano coating corrugated tube valve special for chlorine |
| CN209569381U (en) * | 2018-12-07 | 2019-11-01 | 四川格林流体控制设备有限公司 | A kind of high temperature resistant molten salt shut-off valve |
| CN209818765U (en) * | 2019-05-12 | 2019-12-20 | 纽顿流体科技有限公司 | Valve special for chlorine |
| CN211875116U (en) * | 2020-03-24 | 2020-11-06 | 浙江欧罗泰克阀门有限公司 | Quadruple-sealing corrugated pipe stop valve special for chlorine |
| CN111765253A (en) * | 2020-06-16 | 2020-10-13 | 河南陶恩机械有限公司 | Corrugated pipe stop valve with double-valve-clack structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202451846U (en) | Double valve clack large-diameter stop valve | |
| CN102734486A (en) | Valve assembly sealing device of low temperature ball valve | |
| CN112984128A (en) | Corrugated pipe flushing-free valve | |
| CN112728151A (en) | Ball valve with multiple sealing track structure | |
| CN209115067U (en) | A kind of plunger catcher | |
| CN209909221U (en) | Critical ball valve | |
| CN216279454U (en) | High-pressure-resistant sealing structure of sampling valve hole | |
| CN217683282U (en) | Five-eccentric hard sealing butterfly valve | |
| CN200958620Y (en) | Expansion valve | |
| CN210716092U (en) | Low-temperature storage tank three-way switching valve | |
| CN210531618U (en) | Pneumatic stop valve for high-pressure oxygen | |
| CN211820876U (en) | Flange type two-valve group | |
| CN210949847U (en) | Combined sealing ring | |
| CN201475393U (en) | Eccentric knife-shaped gate valve | |
| CN216519697U (en) | High-temperature high-pressure dual self-sealing electric gate valve | |
| CN108825810B (en) | Adjustable three-eccentric one-way valve seat track ball valve and working method thereof | |
| CN116717602A (en) | Multiple sealing valve structure preventing impact of water hammer | |
| CN219588130U (en) | Valve clack anti-loosening structure of stop valve | |
| CN218625651U (en) | Corrugated pipe valve actuating mechanism and corrugated pipe valve | |
| CN2625672Y (en) | Sluice valve with adjustable combined flashboard | |
| CN216692236U (en) | Diaphragm valve with rolling diaphragm | |
| CN109386245A (en) | A kind of plunger catcher | |
| CN215981997U (en) | Pressure retaining valve | |
| CN213145515U (en) | Right-angle stop valve | |
| CN218094353U (en) | Fixed ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210618 |
|
| RJ01 | Rejection of invention patent application after publication |