CN204114186U - A kind of bivalve A seating blowdown valve - Google Patents
A kind of bivalve A seating blowdown valve Download PDFInfo
- Publication number
- CN204114186U CN204114186U CN201420616678.8U CN201420616678U CN204114186U CN 204114186 U CN204114186 U CN 204114186U CN 201420616678 U CN201420616678 U CN 201420616678U CN 204114186 U CN204114186 U CN 204114186U
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- steel ball
- valve seat
- valve
- puller bolt
- blowdown
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Abstract
The utility model relates to a kind of bivalve A seating blowdown valve, be positioned at valve seat mouth in its blowdown valve valve body and be provided with step hole slot away from steel ball one end, top pressure spring steel ball being pushed away valve seat mouth is provided with in described step hole slot, top pressure spring one end is pressed on step hole groove bottom, the top pressure spring the other end is pressed on steel ball, described steel ball is conflicted in puller bolt end through top pressure spring, be positioned at conical valve seat mouth in blowdown valve valve body and be axially provided with the second valve seat bench port towards exhaust port one end, second valve seat bench port is between conical valve seat mouth and exhaust port, puller bolt coordinates end, one end to be provided with shutoff end face with steel ball, the shutoff end face of described puller bolt and the second valve seat bench port are conflicted and are sealed and matched.The utility model compared with prior art, effectively avoids steel ball stuck phenomenon, improves sealability, reaches unlatching more reliably light, and double-sealing guarantee, effectively improves sealing reliability simultaneously.
Description
Technical field
The utility model relates to valve technology field, is specifically a kind of blowdown valve.
Background technique
China Patent No. is " filth-discharging valve for valve " disclosed in 200620136352.0 patent documentations (Authorization Notice No. is: CN 201003621Y), its main structure is: a kind of blowdown valve, sewage draining exit place on the valve body being arranged on ball valve, comprise cylindric blowdown valve valve body, blowdown valve body wall has exhaust port, spinning sewage draining exit place on the valve body of ball valve, blowdown valve valve body one end, the other end of blowdown valve valve body has screwed puller bolt, sealing inclined-plane is provided with in blowdown valve valve body, form conical valve seat mouth, puller bolt abuts and is combined with steel ball, steel ball coordinates the keying realizing blowdown valve to control with conical valve seat mouth.By steel ball and conical valve seat mouth, effectively can solve the defects such as the sealing of existing blowdown valve is unreliable, working life is short, time-consuming, narrow application range, avoid the evaporating, emitting, dripping or leaking of liquid or gas at valve in use sewage draining exit place.
But still there is following defect in it: 1) steel ball and conical valve seat mouth compression fit, when steel ball coordinates tension with spherical valve seat mouth, only rely on the fluid forces steel ball of sewage draining exit to open blowdown valve, be not easy to open steel ball, there is the easy stuck problem of steel ball, thus it is unreliable to cause sewage draining exit to be opened;
2) after a certain period of use time, steel ball is washed away by foreign material, there is being sealed and matched of steel ball and valve seat mouth unreliable, there is sewage draining exit place and drips to emit and occur leaking, cause the unreliable problem of the sealing of sewage draining exit.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of steel ball and conical valve seat mouth to open and close reliably sensitive, and valve closing is reliable, the sealing reliable bivalve A seating blowdown valve of long service life.
For achieving the above object, the utility model provides following technological scheme: a kind of bivalve A seating blowdown valve, include cylindric blowdown valve valve body, spinning sewage draining exit place on ball valve body, blowdown valve valve body one end, the other end of blowdown valve valve body has screwed puller bolt, blowdown valve body wall has exhaust port, conical valve seat mouth is provided with in blowdown valve valve body, puller bolt abuts steel ball, steel ball coordinates with conical valve seat mouth, it is characterized in that: be positioned at valve seat mouth in described blowdown valve valve body and be provided with step hole slot away from steel ball one end, top pressure spring steel ball being pushed away valve seat mouth is provided with in described step hole slot, described top pressure spring one end is pressed on step hole groove bottom, the top pressure spring the other end is pressed on steel ball, described steel ball is conflicted in puller bolt end through top pressure spring, be positioned at conical valve seat mouth in described blowdown valve valve body and be axially provided with the second valve seat bench port towards exhaust port one end, second valve seat bench port is between conical valve seat mouth and exhaust port, described puller bolt coordinates end, one end to be provided with shutoff end face with steel ball, the shutoff end face of described puller bolt and the second valve seat bench port are conflicted and are sealed and matched.
By adopting technique scheme, when open operation, top pressure spring provides steel ball and to lift off a seat the spring force of mouth, make unlatching more reliable, ensure that the sealing of steel ball and valve seat mouth compresses reliably simultaneously, effectively avoid steel ball stuck phenomenon, improve sealability, and it is more reliably light to reach unlatching; Puller bolt screws in and realizes in closing process in pushing tow steel ball inserted valve seat mouth simultaneously, top pressure spring provides certain reverse resistance, make blowdown valve closing operation feel better, operation is reliable, and steel ball and conical valve seat interruption-forming first seal, puller bolt and the second valve seat bench port form second and seal, common formation double sealing controls, and after erosive wear appears in steel ball, puller bolt provides two road sealings, thus stop the leakage of sewage draining exit, effectively extend blowdown valve working life.
The utility model is set to further: described puller bolt and steel ball counterface offer the spring eye along puller bolt axis, Compress Spring and pushing tow piston is provided with in spring eye, Compress Spring one end is bearing in bottom spring eye, the Compress Spring the other end is pressed on pushing tow piston, described pushing tow Piston assembling also can slide axially along spring eye in spring eye, described steel ball is connected on pushing tow piston, and the oral area of described spring eye and steel-ball limiting form described puller bolt top pressing steel balls and be engaged in conical valve seat mouth.
By adopting technique scheme, realizing puller bolt floating support steel ball, steel ball being coordinated with puller bolt more reliable, making the shutoff end face of puller bolt and the second valve seat bench port be sealed and matched reliably simultaneously.
The utility model is set to further: described pushing tow piston coordinates with spring eye slipper seal, and form compressible water storage cavity, Compress Spring is positioned at water storage cavity, the shutoff end face of described puller bolt is provided with the hard seal convexity of circular arc-shaped metal, metal hard-sealing projection is the loop configuration arranged around shutoff end face, described metal hard-sealing convex top concave camber groove, arc-shaped groove bottom is provided with cleanout, cleanout is communicated with water storage cavity relative to the other end being positioned at arc groove one end, axial water inlet is provided with in described puller bolt, one end, described axial water inlet passes puller bolt, the unidirectional one-way valve passed in water storage cavity is embedded with in this end of axial water inlet, the axial water inlet the other end leads to water storage cavity.
By adopting technique scheme, by water inlet to water filling in water storage cavity, in blowdown valve closing process, steel ball pushing tow pushing tow piston also compresses top pressure spring, water storage cavity is compressed, water sprays from cleanout, second valve seat bench port is cleaned, guarantee is sealed and matched reliably, after and the second valve seat bench port protruding at the metal hard-sealing of puller bolt is sealed and matched simultaneously, water sprays from cleanout and is stored in arc groove and forms certain water-stop, and realize protruding two the enclosing and seal for being positioned at arc groove both sides of the second valve seat bench port and metal hard-sealing, form double-sealing, thus raising sealability.
The utility model is set to further: described second valve seat bench port is provided with the annular groove corresponding with metal hard-sealing raised position, and annular groove sectional shape is circular arc, is coated with metal hard-sealing layer in annular groove.
By adopting technique scheme, realizing that the second valve seat bench port and metal hard-sealing are protruding two enclose potted line for being positioned at arc groove both sides, forming linear sealing, sealing reliably.
The utility model is set to further: the oral area of described spring eye is the spherical enlarging with steel ball gabarit adaptation.
By adopting technique scheme, steel ball being coordinated with puller bolt more reliable, namely when blowdown valve cuts out, coordinating reliable between steel ball with puller bolt.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the utility model specific embodiment bivalve A seating blowdown valve structural representation;
Fig. 2 is Figure 1A part partial enlarged view.
Embodiment
See accompanying drawing, a kind of bivalve A seating blowdown valve disclosed in the utility model, include cylindric blowdown valve valve body 81, spinning sewage draining exit place on ball valve body, blowdown valve valve body 81 one end, the other end of blowdown valve valve body 81 has screwed puller bolt 82, blowdown valve valve body 81 sidewall has exhaust port 811, is provided with conical valve seat mouth 812 in blowdown valve valve body 81, puller bolt 82 abuts steel ball 83, and steel ball 83 coordinates with conical valve seat mouth 812.Be positioned at valve seat mouth 812 in described blowdown valve valve body 81 and be provided with step hole slot 813 away from steel ball 83 one end, the top pressure spring 84 steel ball 83 being pushed away valve seat mouth 812 is provided with in described step hole slot 813, described top pressure spring 84 one end is pressed on bottom step hole slot 813, top pressure spring 84 the other end is pressed on steel ball 83, described steel ball 83 is conflicted in puller bolt 82 end through top pressure spring 84, be positioned at conical valve seat mouth 812 in described blowdown valve valve body 81 and be axially provided with the second valve seat bench port 814 towards exhaust port 811 one end, second valve seat bench port 814 is between conical valve seat mouth 812 and exhaust port 811, described puller bolt 82 coordinates end, one end to be provided with shutoff end face 821 with steel ball 83, the shutoff end face 821 of described puller bolt 82 and the second valve seat bench port 814 are conflicted and are sealed and matched.When open operation, top pressure spring provides steel ball and to lift off a seat the spring force of mouth, makes to open more reliable, ensure that the sealing of steel ball and valve seat mouth compresses reliably simultaneously, effectively avoid steel ball stuck phenomenon, improve sealability, and it is more reliably light to reach unlatching; Puller bolt screws in and realizes in closing process in pushing tow steel ball inserted valve seat mouth simultaneously, top pressure spring provides certain reverse resistance, make blowdown valve closing operation feel better, operation is reliable, and steel ball and conical valve seat interruption-forming first seal, puller bolt and the second valve seat bench port form second and seal, common formation double sealing controls, and after erosive wear appears in steel ball, puller bolt provides two road sealings, thus stop the leakage of sewage draining exit, effectively extend blowdown valve working life.
More reliable for making puller bolt coordinate with steel ball, described puller bolt 82 and steel ball 83 counterface offer the spring eye 822 along puller bolt 82 axis, Compress Spring 85 and pushing tow piston 86 is provided with in spring eye 822, Compress Spring 85 one end is bearing in bottom spring eye 822, Compress Spring 85 the other end is pressed on pushing tow piston 86, described pushing tow piston 86 is assemblied in spring eye 822 and also can slides axially along spring eye 822, described steel ball 83 is connected on pushing tow piston 86, annular stop seat ring is provided with at the port of spring eye 822, annular stop seat ring by spacing for pushing tow piston 86 in spring eye 822, annular stop seat ring oral area is spring eye 822 oral area, oral area (i.e. annular stop seat ring oral area) and the described puller bolt 82 of the spacing formation of steel ball 83 of described spring eye 822 push up pressing steel balls 83 and are engaged in conical valve seat mouth 812.And the oral area of described spring eye 822 is the spherical enlarging 8221 with steel ball 83 gabarit adaptation.Like this, realize puller bolt floating support steel ball, steel ball is coordinated with puller bolt more reliable, make the shutoff end face of puller bolt can reliably push against with the second valve seat bench port simultaneously and coordinate, realize being sealed and matched reliably.
In this specific embodiment, described pushing tow piston 86 coordinates with spring eye 822 slipper seal, and forms compressible water storage cavity 8222; Compress Spring 85 is positioned at water storage cavity 8222, and the shutoff end face 821 of described puller bolt 82 is provided with the hard seal convexity 823 of circular arc-shaped metal, and metal hard-sealing protruding 823 is the loop configuration arranged around shutoff end face 821; For make the second valve seat bench port and metal hard-sealing male cooperation reliable, described second valve seat bench port 814 is provided with annular groove 815 corresponding to 823 positions protruding with metal hard-sealing, annular groove 815 sectional shape is circular arc, is coated with metal hard-sealing layer in annular groove 815; The protruding 823 top concave camber grooves 8231 of described metal hard-sealing, cleanout 824 is provided with bottom arc groove 8231, cleanout 824 is communicated with water storage cavity 8222 relative to the other end being positioned at arc groove 8231 one end, axial water inlet 825 is provided with in described puller bolt 82, one end, described axial water inlet 825 passes puller bolt 82, be embedded with the unidirectional one-way valve 826 passed in water storage cavity 8222 in this end of axial water inlet 825, axial water inlet 825 the other end leads to water storage cavity 8222.By water inlet to water filling in water storage cavity, in blowdown valve closing process, steel ball pushing tow pushing tow piston also compresses top pressure spring, water storage cavity is compressed, water sprays from cleanout, second valve seat bench port is cleaned, guarantee is sealed and matched reliably, after and the second valve seat bench port protruding at the metal hard-sealing of puller bolt is sealed and matched simultaneously, water sprays from cleanout and is stored in arc groove and forms certain water-stop, and realize protruding two the enclosing and seal for being positioned at arc groove both sides of the second valve seat bench port and metal hard-sealing, form double-sealing, thus raising sealability.
Claims (5)
1. a bivalve A seating blowdown valve, include cylindric blowdown valve valve body, spinning sewage draining exit place on ball valve body, blowdown valve valve body one end, the other end of blowdown valve valve body has screwed puller bolt, blowdown valve body wall has exhaust port, conical valve seat mouth is provided with in blowdown valve valve body, puller bolt abuts steel ball, steel ball coordinates with conical valve seat mouth, it is characterized in that: be positioned at valve seat mouth in described blowdown valve valve body and be provided with step hole slot away from steel ball one end, top pressure spring steel ball being pushed away valve seat mouth is provided with in described step hole slot, described top pressure spring one end is pressed on step hole groove bottom, the top pressure spring the other end is pressed on steel ball, described steel ball is conflicted in puller bolt end through top pressure spring, be positioned at conical valve seat mouth in described blowdown valve valve body and be axially provided with the second valve seat bench port towards exhaust port one end, second valve seat bench port is between conical valve seat mouth and exhaust port, described puller bolt coordinates end, one end to be provided with shutoff end face with steel ball, the shutoff end face of described puller bolt and the second valve seat bench port are conflicted and are sealed and matched.
2. bivalve A seating blowdown valve according to claim 1, it is characterized in that: described puller bolt and steel ball counterface offer the spring eye along puller bolt axis, Compress Spring and pushing tow piston is provided with in spring eye, Compress Spring one end is bearing in bottom spring eye, the Compress Spring the other end is pressed on pushing tow piston, described pushing tow Piston assembling also can slide axially along spring eye in spring eye, described steel ball is connected on pushing tow piston, and the oral area of described spring eye and steel-ball limiting form described puller bolt top pressing steel balls and be engaged in conical valve seat mouth.
3. bivalve A seating blowdown valve according to claim 2, it is characterized in that: described pushing tow piston coordinates with spring eye slipper seal, and form compressible water storage cavity, Compress Spring is positioned at water storage cavity, the shutoff end face of described puller bolt is provided with the hard seal convexity of circular arc-shaped metal, metal hard-sealing projection is the loop configuration arranged around shutoff end face, described metal hard-sealing convex top concave camber groove, arc-shaped groove bottom is provided with cleanout, cleanout is communicated with water storage cavity relative to the other end being positioned at arc groove one end, axial water inlet is provided with in described puller bolt, one end, described axial water inlet passes puller bolt, the unidirectional one-way valve passed in water storage cavity is embedded with in this end of axial water inlet, the axial water inlet the other end leads to water storage cavity.
4. bivalve A seating blowdown valve according to claim 3, is characterized in that: described second valve seat bench port is provided with the annular groove corresponding with metal hard-sealing raised position, and annular groove sectional shape is circular arc, is coated with metal hard-sealing layer in annular groove.
5. bivalve A seating blowdown valve according to Claims 2 or 3 or 4, is characterized in that: the oral area of described spring eye is the spherical enlarging with steel ball gabarit adaptation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616678.8U CN204114186U (en) | 2014-10-23 | 2014-10-23 | A kind of bivalve A seating blowdown valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420616678.8U CN204114186U (en) | 2014-10-23 | 2014-10-23 | A kind of bivalve A seating blowdown valve |
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| Publication Number | Publication Date |
|---|---|
| CN204114186U true CN204114186U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420616678.8U Expired - Fee Related CN204114186U (en) | 2014-10-23 | 2014-10-23 | A kind of bivalve A seating blowdown valve |
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| CN (1) | CN204114186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043729A (en) * | 2019-04-09 | 2019-07-23 | 温州赛润电器科技有限公司 | A kind of water supply valve door machine structure |
-
2014
- 2014-10-23 CN CN201420616678.8U patent/CN204114186U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043729A (en) * | 2019-04-09 | 2019-07-23 | 温州赛润电器科技有限公司 | A kind of water supply valve door machine structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150121 Termination date: 20171023 |