CN203477422U - Top-installed type ball valve with adjustable valve seat - Google Patents
Top-installed type ball valve with adjustable valve seat Download PDFInfo
- Publication number
- CN203477422U CN203477422U CN201320590364.0U CN201320590364U CN203477422U CN 203477422 U CN203477422 U CN 203477422U CN 201320590364 U CN201320590364 U CN 201320590364U CN 203477422 U CN203477422 U CN 203477422U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve seat
- adjusting nut
- seat
- type ball
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a top-installed type ball valve with an adjustable valve seat. The top-installed type ball valve comprises the valve seat capable of moving laterally, a valve body, a ball body and an adjusting nut, wherein the valve seat is installed in the valve body. A limiting block is arranged between the adjusting nut and the ball body, a limiting device is arranged between the adjusting nut and the valve body, and the valve seat and the adjusting nut are spirally matched. The internally-arranged adjusting nut is adopted in the adjustable valve seat to control the valve seat to move laterally, leakage points are avoided in the use process of the ball valve, the ball valve is safe and reliable, the adjusting nut can provide forced sealing force for occasions with low differential pressure or high sealing requirements so that better sealing effect can be achieved, and the self pressure relief function of a middle cavity of the valve can be provided.
Description
Technical field
The utility model relates to a kind of valve, particularly the adjustable upper-mounting type ball valve of a kind of valve seat.
Background technique
Spheroid adopts the upper-mounting type ball valve packing into from lumen to have two way sealed, energy on-line maintenance, and the leak source that leaks is few, and therefore the advantage of valve long service life is widely used in many important operating modes.The key point of this kind of valve mechanism is: valve adopts seal ring to be embedded in the Split type structure on metal seat valve, for guaranteeing spheroid, can from lumen, put into smoothly, when sphere installation, first two side valve seats are outwards removed to certain distance, after sphere installation puts in place, two side valve seats reset, and with spheroid close contact, spheroid and valve base chamber generation sealing effect.
At present, traditional embodiment is most of adopts on valve body the adjusting screw that the head band centrum that two outsides can threaded adjusting is housed near valve seat place, rely on vertebra angle fault piece principle, valve seat is moved to the left or to the right, its shortcoming is to have two easy leak points, although also have some other structures, substantially all have unreasonable structure, inconvenient operation deficiency.Therefore designing a kind of rational in infrastructure, practical, feasible valve seat adjustable structure is the key of upper-mounting type ball valve.
Model utility content
In order to solve existing upper-mounting type ball valve, there is the deficiency of easy leak point because of unreasonable structure, the utility model provides a kind of valve seat adjustable upper-mounting type ball valve, and this adjustable valve seat has changed valve seat construction, adopts built-in, have easy to operate, without the advantage of leak point.
The technological scheme that the utility model adopts is: the adjustable upper-mounting type ball valve of a kind of valve seat, comprise valve seat, valve body, spheroid and the adjusting nut that can move left and right, described valve seat is arranged on valve inner, between described adjusting nut and spheroid, be provided with limiting stopper, between described adjusting nut and valve body, be provided with limit stoper, described valve seat forms spiral with adjusting nut and coordinates.
Described limit stoper comprises spring seat and spring, described spring one end linking springs seat, and the other end connects valve body, described spring seat left side and valve body movable contact, right side and adjusting nut movable contact, bottom surface contacts with valve seat.
The external diameter circumferencial direction of described adjusting nut has radial hole.
Valve seat surface with respect to spring seat bottom surface is provided with groove, is embedded with O type circle on described groove.
The beneficial effects of the utility model are: the utility model has changed upper-mounting type ball valve valve seat regulation structure, adopt built-in adjusting nut control valve seat to move left and right, and make ball valve in use without leak point, more safe and reliable; For low voltage difference or the high occasion of seal request, can provide forced seal power by adjusting nut, to reach better sealing effect, can also provide valve lumen from decompression function.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the enlarged view of A in Fig. 1.
1-spheroid, 2-valve body, 3-limiting stopper, 4-adjusting nut, 5-spring seat, 6-spring, 7-O type circle, 8-valve seat.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
As shown in Figure 1 or 2, the adjustable upper-mounting type ball valve of a kind of valve seat, comprise valve seat 8, valve body 2, spheroid 1 and the adjusting nut 4 that can move left and right, described valve seat 8 is arranged on valve body 2 inside, between described adjusting nut 4 and spheroid 1, be provided with limiting stopper 3, between described adjusting nut 4 and valve body 2, be provided with limit stoper, described valve seat 8 forms spiral with adjusting nut 4 and coordinates.
Described limit stoper comprises spring seat 5 and spring 6, described spring 6 one end linking springs seats 5, and the other end connects valve body 2, and described spring seat 5 left sides contact with valve body 2, and right side contacts with adjusting nut 4, and bottom surface contacts with valve seat 8.
Described adjusting nut 4 rotates and moves axially in spring seat 5 and limiting stopper 3 scopes.
The external diameter circumferencial direction of described adjusting nut 4 has a plurality of radial holes, guarantees convenient rotation adjusting nut 4
Valve seat surface with respect to spring seat 5 bottom surfaces is provided with groove, is embedded with O type circle 7 on described groove, guarantees the sealing of ball valve.
Referring to Fig. 1, for making spheroid 1 load and unload and put in place smoothly, should guarantee the distance a that the every side valve seat 8 of valve is removed to the right, be less than distance b 2 and valve seat 8 and the axially directed distance b 3 of valve body 2 and b4 between valve seat 8 and spring seat 6, should meet: b2=b3=b4>a=b1
Valve installation:
First by valve seat 8, O type circle 7, spring seat 6, spring 5, adjusting nut 4 composite entities pack in valve body 2, again limiting stopper 3 be installed on valve body and fix, by being rotated counterclockwise a side adjusting nut 4, for it, on valve seat 8, moving right, after adjusting nut 4 contacts with limiting stopper 3, because adjusting nut 4 displacements are limited, continue to screw adjusting nut, it forces valve seat 8 to be moved to the left apart from a.Adopt same method, by opposite side valve seat 8 also displacement distance a.
Again ball valve is put into valve body 2.
Then adjusting nut 4 is rotated in the direction of the clock, contact with spring seat 6, and Compress Spring 5. contacts with valve body 2 when spring seat 6, adjusting nut 4 displacements are limited.Force valve seat 8 to move right, until sealing surface of seat contacts with spheroid 1.For guarantee low voltage difference or seal request high more effective sealing effect under operating mode, can continue to rotate in the direction of the clock adjusting nut 4 and apply pretightening force, thereby in spring force and the acting in conjunction of medium thrust, reach the larger seal pressure of expection.If valve need be from pressure relief, can be after sealing surface of seat contacts with spheroid 1, adjusting nut 4 is adjusted to the neutral position of b1, due to the moved right distance of 1/2b1 of adjusting nut 4, adjusting nut 4 compressing lumens, make pressure medium promotion valve seat 8 in lumen move to valve left side, sealing surface of seat Automatic-falling, thereby lumen medium is released, reach the function from release.
Valve dismounting:
First open the valve gap of upper-mounting type ball valve, adjusting nut 4, spheroid 1, valve seat 8 are exposed, be then rotated counterclockwise adjusting nut 4, after adjusting nut 4 contacts with limiting stopper 3, continuing to screw adjusting nut 4 forces valve seat 8 to be moved to the left apart from a, with same method, opposite side valve seat 8 is also outwards moved apart from a, after sealing surface of seat and spheroid 1 come off, can take out spheroid 1, then take off limiting stopper 3, then take out valve seat 8 and correlated parts, complete valve dismounting task.
Adopt design proposal of the present utility model simultaneously, there is deviation in its processing when valve seat 8 sealing surfaces, can be by regulating adjusting nut 4, drive valve seat 8 to be displaced to realize the ，Qie Gai position, position of its sealing can effectively utilize the elastic force of spring 5, further compress valve seat 8, guarantee the sealing effect between valve seat 8 and spheroid 1, utilize tunable characteristics simultaneously, can make the processing technology accurate requirement unlike the past of valve seat 8, reduced the reject ratio that valve seat is produced.
When there are wearing and tearing in sealing surface of seat, bad connection between valve seat 8 and spheroid 1, also can be by regulating adjusting nut 4, make valve seat 8 to spheroid 1 direction displacement, make valve seat 8 good with contacting of spheroid 1, improve its sealing, need be when there are not wearing and tearing in sealing surface of seat, carry out the replacing of whole valve seat or sealing surface of seat, avoid the generation of replacement cost.
Below described embodiment is only the preferred embodiment of the present invention by reference to the accompanying drawings, and the not restriction to protection scope of the present invention, any improvement of doing based on spirit of the present invention all ought to be at protection domain of the present invention.
Claims (4)
1. the adjustable upper-mounting type ball valve of valve seat, it is characterized in that: comprise valve seat (8), valve body (2), spheroid (1) and the adjusting nut (4) that can move left and right, described valve seat (8) is arranged on valve body (2) inside, between described adjusting nut (4) and spheroid (1), be provided with limiting stopper (3), between described adjusting nut (4) and valve body (2), be provided with limit stoper, described valve seat (8) forms spiral with adjusting nut (4) and coordinates.
2. the adjustable upper-mounting type ball valve of a kind of valve seat according to claim 1, it is characterized in that, described limit stoper comprises spring seat (5) and spring (6), described spring (6) one end linking springs seat (5), the other end connects valve body (2), described spring seat (5) left side and valve body (2) movable contact, right side and adjusting nut (4) movable contact, bottom surface contacts with valve seat (8).
3. the adjustable upper-mounting type ball valve of a kind of valve seat according to claim 1, is characterized in that, the external diameter circumferencial direction of described adjusting nut (4) has radial hole.
4. the adjustable upper-mounting type ball valve of a kind of valve seat according to claim 2, is characterized in that, with respect to the valve seat surface of spring seat (5) bottom surface, is provided with groove, is embedded with O type circle (7) on described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590364.0U CN203477422U (en) | 2013-09-24 | 2013-09-24 | Top-installed type ball valve with adjustable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320590364.0U CN203477422U (en) | 2013-09-24 | 2013-09-24 | Top-installed type ball valve with adjustable valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477422U true CN203477422U (en) | 2014-03-12 |
Family
ID=50225753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320590364.0U Expired - Lifetime CN203477422U (en) | 2013-09-24 | 2013-09-24 | Top-installed type ball valve with adjustable valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477422U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470805A (en) * | 2013-09-24 | 2013-12-25 | 宣达实业集团有限公司 | Top-installation ball valve with adjustable valve seat |
| CN104089044A (en) * | 2014-07-15 | 2014-10-08 | 合肥通用机械研究院 | LNG ultra-low temperature top-mounting type ball valve seat capable of achieving pre-tightening force fine tuning and on-line disassembling |
| CN113154077A (en) * | 2021-05-07 | 2021-07-23 | 纽托克流体控制有限公司 | Top-mounted type gas storage metal hard sealing ball valve capable of being maintained on line |
-
2013
- 2013-09-24 CN CN201320590364.0U patent/CN203477422U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470805A (en) * | 2013-09-24 | 2013-12-25 | 宣达实业集团有限公司 | Top-installation ball valve with adjustable valve seat |
| CN104089044A (en) * | 2014-07-15 | 2014-10-08 | 合肥通用机械研究院 | LNG ultra-low temperature top-mounting type ball valve seat capable of achieving pre-tightening force fine tuning and on-line disassembling |
| CN113154077A (en) * | 2021-05-07 | 2021-07-23 | 纽托克流体控制有限公司 | Top-mounted type gas storage metal hard sealing ball valve capable of being maintained on line |
| CN113154077B (en) * | 2021-05-07 | 2022-06-03 | 纽托克流体控制有限公司 | Top-mounted type gas storage metal hard sealing ball valve capable of being maintained on line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203477422U (en) | Top-installed type ball valve with adjustable valve seat | |
| CN106134415B (en) | A kind of plunger type pipeline double containment joint for 35MPa pressure duct | |
| CN203703226U (en) | Double-piston double-blocking hard sealing valve seat with metal C-shaped ring sealing structure | |
| CN103470805A (en) | Top-installation ball valve with adjustable valve seat | |
| CN103090034B (en) | Wedge-caulking parallel sluice valve | |
| CN101413590A (en) | Supporting type double-seal double-gate plate flat plate gate valve | |
| CN104930214A (en) | Rapid installation type high pressure floating ball valve | |
| CN204493781U (en) | Self-erecting type ultra-low torque fixing ball valve | |
| CN203335887U (en) | Bi-direction sealing triple-eccentric butterfly valve | |
| CN203836245U (en) | Four-eccentricity all-metal both-way sealing butterfly valve | |
| CN202790658U (en) | Valve seat of fixed ball valve | |
| CN203656245U (en) | Top-entry bidirectional sphere valve | |
| CN105179713A (en) | Ship both-way sealing and double-eccentric butterfly valve sealing structure | |
| CN204647406U (en) | A kind of cryogenic ball valve valve base sealing structure | |
| CN205479381U (en) | Shaft type high performance butterfly valve of double break | |
| CN201354869Y (en) | rubber-lining check valve on sealing surface | |
| CN203532800U (en) | High sealing performance valve | |
| CN202768925U (en) | Single-flow-direction floating ball metal hard sealing ball valve | |
| CN204140936U (en) | A kind of floating ball valve | |
| CN203857072U (en) | Low-torque floating ball spherical valve | |
| CN204533626U (en) | The adjustable ball valve fixed axle structure of a kind of anti-attrition | |
| CN204942691U (en) | A kind of ball valve end cover structure | |
| CN203743473U (en) | Spring reset dual-acting-force parallel gate valve | |
| CN204805221U (en) | A relief valve for colliery hydraulic system | |
| CN204358160U (en) | Coal Chemical Industry hard seal ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |