CN2846925Y - Top mounted straight ball valve - Google Patents
Top mounted straight ball valve Download PDFInfo
- Publication number
- CN2846925Y CN2846925Y CN 200520114625 CN200520114625U CN2846925Y CN 2846925 Y CN2846925 Y CN 2846925Y CN 200520114625 CN200520114625 CN 200520114625 CN 200520114625 U CN200520114625 U CN 200520114625U CN 2846925 Y CN2846925 Y CN 2846925Y
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- CN
- China
- Prior art keywords
- valve
- spool
- roof
- valve body
- mounted straight
- 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 - Fee Related
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Abstract
The utility model relates to a straight through ball valve. The top mounted straight through ball valve of the utility model comprises a valve body, a valve core arranged in the valve body, a valve rod connected with the valve core, and a valve cover sheathed outside the valve rod and fixed on the valve body, wherein the valve core is a ball body provided with a liquid passing hole. The utility model is characterized in that the valve core forms a wedge shape, and an oblique surface which is matched with the wedge-shaped valve core is arranged in the valve body. The utility model has the advantages that in the utility model, due to the adoption of the wedge-shaped valve core, the on-line maintenance can be realized, namely under the condition that the valve body needs not to be disassembled from a pipe line, a valve core, a valve seat and a sealing ring are disassembled to carry out replacement or maintenance; thus, the time can be saved, the labor can be saved and the maintenance is very convenient.
Description
Technical field
The utility model relates to a kind of being arranged in the pipeline, is used to control the straight-through valve of fluid, particularly a kind of roof-mounted straight-through valve easy to maintenance.
Background technique
Straight-through valve is a device commonly used in the fluid circuit, and the structure of existing straight-through valve generally includes by flange and is connected to valve body on the pipeline, is installed in valve seat in the valve body, is engaged in spool on the valve seat, is connected and stretches out the valve rod of valve body with spool.Wherein spool is a spheroid, has the liquid pass hole that adapts with pipeline on it, on the spheroid wall in the ingress of liquid pass hole and outlet port, be respectively equipped with the end face vertical with the liquid pass hole medial axis, that is to say, the longitudinal section of liquid pass hole is square or rectangle, thereby the spheroid cross section at this place, sectional position also is square or rectangle.Because in use, spheroid often rotates, rubs with respect to valve seat, so the seal ring between spheroid, valve seat, valve seat and the spheroid is an easily damaged parts, often needs repairing, changes.And existing this straight-through valve need remove straight-through valve integral body could to keep in repair from pipeline in maintenance or when changing, and is time-consuming, require great effort, and influenced the proper functioning of pipeline again for a long time.And this kind straight-through valve just is not closed completely when producing small wearing and tearing between spheroid and valve seat, in order to prevent to leak, needs in time to change, so whole pipeline is stopped work, had a strong impact on manufacturing efficiency.
The model utility content
(1) technical problem that will solve
The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of roof-mounted straight-through valve easy to maintenance is provided.
(2) technological scheme
For achieving the above object, the utility model adopts following technological scheme:
The roof-mounted straight-through valve of the utility model, comprise valve body, be installed in spool, the valve rod that is connected with spool in the valve body, be sleeved on valve rod and be fixed on valve gap on the valve body outward, wherein spool is a spheroid with liquid pass hole, it is characterized in that described spool is wedge shape, be provided with the inclined-plane that cooperates with wedge shape valve core in the described valve body.
The centre of sphere of wherein said spool upwards is offset 2～5mm with respect to position, liquid pass hole medial axis, is preferably and upwards is offset 3mm.
Valve rod between wherein said spool and the valve gap is set with adjustment sleeve outward, and the fine setting spring is installed between adjustment sleeve and valve gap, and described fine setting spring is preferably wavy spring or butterfly spring.
Wherein said valve rod is provided with the anticreep convex shoulder with described valve gap cooperating.
Be provided with flange gasket between wherein said valve gap and the valve body, this flange gasket is Stainless Steel Band and Expanded graphite spiral wound gasket.
Wherein said valve body is provided with fixed base, and this fixed base extend in the spool.
(3) beneficial effect
The advantage and the good effect of roof-mounted straight-through valve of the present utility model are: in the utility model, owing to adopted wedge shape valve core, can be implemented in the line maintenance, promptly need not remove under the valve body situation from pipeline, directly spool, valve seat and seal ring are removed and change or maintenance, save time, laborsaving, keep in repair very convenient.
Description of drawings
Fig. 1 is that the master of the roof-mounted straight-through valve of the utility model looks sectional view;
Fig. 2 is the roof-mounted straight-through valve side view cutaway drawing of the utility model;
Fig. 3 is the plan view of Fig. 1.
Among the figure: 1. valve body; 2. seal ring; 3. spool; 4. valve gap; 5. wavy spring; 6. adjustment sleeve; 7. " O " shape seal ring; 8. stuffing box packing; 9. valve rod; 10. gland nut; 11. location piece; 12. position limit pin; 13. flange gasket; 14. all reservation; 15. metallic seal seat.
Embodiment
Below in conjunction with accompanying drawing, further describe the embodiment of the roof-mounted straight-through valve of the utility model, but be not used for limiting protection domain of the present utility model.
Referring to Fig. 1, Fig. 2 and Fig. 3.Roof-mounted straight-through valve of the present utility model comprises valve body 1, spool 3, valve gap 4, valve rod 9.Wherein, be provided with the inclined-plane in the valve body 1, spool 3 is a spheroid with liquid pass hole, is engaged on the inclined-plane in the valve body 1.Be provided with black box between valve body 1 and spool 3, the sealing assembly is made up of metallic seal seat 15 and the soft seal 2 that is positioned at metallic seal seat 15.Soft seal 2 wherein is a rubber seal ring, and it can also be the Sealing of other types; Metallic seal seat 15 can play anti-fire action, in case catch fire, soft seal 2 is burnt, and metallic seal seat 15 can also play seal action, prevents that medium from leaking outside in a large number, and the seat of metallic seal simultaneously 15 also plays the effect of valve seat.Valve rod 9 is fixedly connected on the spool 3, and stretches out valve body 1; Valve gap 4 and valve body 1 are provided with flange gasket 13 by bolt together between the two, this flange gasket 13 adopts Stainless Steel Band and Expanded graphite spiral wound gaskets, and flange bolt just can guarantee sealing in tightening.Be set with adjustment sleeve 6, valve gap 4, filler gland and stuffing box packing 8, location piece 11 and gland nut 10 on the valve rod 9 from the bottom to top successively.Wherein on valve body 1, be provided with the position limit pin 12 with location piece 11 cooperatings, with the degree of accuracy that guarantees to open and close.Valve rod 9 is provided with the anticreep convex shoulder with valve gap 4 cooperatings, is used for preventing that valve rod 9 from being blown out by cavity pressure." O " shape seal ring 7 is housed between valve gap 4 and valve rod 9.The wavy spring 5 of pretension is installed between adjustment sleeve 6 and valve gap 4, and that this structure takes up room is little, the assembling simple, even also can guarantee effective sealing under the condition of low pressure, and keeps less keying operation moment of torsion; In addition, when spool 3 with below valve seat 2 mild wears the time, under the automatic compensating action of wavy spring 5, can guarantee that still spool 3 cooperates with valve seat 2 closely, unlikely leakage, not only can prolong the working life of ball valve, can also reduce maintenance frequency, thereby reduce the time that forces pipeline to be stopped work because of maintenance.Wavy spring 5 also can be replaced by the fine setting spring of other types such as butterfly spring, gets final product so long as small distortion just produces very big adjusting power.
Spool 3 shapes in the roof-mounted straight-through valve of the present utility model are wedge shape, the spool that is about to spheroid form removes a part respectively in the ingress and the outlet port of liquid pass hole, make two Transverse planes of the end face in ingress and outlet port for symmetry, and the medial axis inclination several angle of Transverse plane and liquid pass hole.In order to make spool each several part structure more even, bear bigger power, the centre of sphere of spool 3 upwards is offset 3mm with respect to position, liquid pass hole medial axis, and side-play amount all is feasible in 2～5mm scope, specifically decides according to the size of liquid pass hole.The benefit of this kind wedge shape valve core is to realize the vertical mounting type of spool, and promptly the utility model is said roof-mounted.During installation, spool 3, black box can together be packed in the valve body 1, suit adjustment sleeve 6, wavy spring 5, valve gap 4, stuffing box packing 8, filler gland, location piece 11 successively from the bottom to top on valve rod 9 are again tightened gland nut 10 then and are connected the bolt of valve gap 4 and valve body 1.After installing, just can reach sealing effect by inclined-plane and wavy spring 5 on the valve body.When easily damaged partss such as spool, valve seat, seal ring need repairing the worker when changing, can open valve gap, valve rod is split out from the top of valve body together with spool, valve seat, seal ring simultaneously, and valve body need not be pulled down from pipeline, thereby reduced labor intensity and engineering time significantly, and then reduced the time that takies pipeline because of maintenance.
Roof-mounted straight-through valve of the present utility model, on valve body 1, can also install and fix seat 14, this fixed base 14 extend in the spool 3, valve body 1 and spool 3 are coupled together, load ability when being increased in closed condition, at this moment, roof-mounted straight-through valve of the present utility model just becomes fixed straight-through valve; When not adding fixed base 14, be floating type straight-through valve.
More than be preferred forms of the present utility model, according to the disclosed content of the utility model, some identical, replacement schemes that those of ordinary skill in the art can expect apparently all should fall into the scope that the utility model is protected.
Claims (8)
1. roof-mounted straight-through valve, comprise valve body (1), be installed in spool (3), the valve rod (9) that is connected with spool (3) in the valve body (1), be sleeved on valve rod (9) and be fixed on valve gap (4) on the valve body (1) outward, wherein spool (3) is a spheroid with liquid pass hole, it is characterized in that described spool (3) is wedge shape, be provided with the inclined-plane that cooperates with wedge shape valve core (3) in the described valve body (1).
2. roof-mounted straight-through valve according to claim 1 is characterized in that the centre of sphere of described spool (3) upwards is offset 2～5mm with respect to position, liquid pass hole medial axis.
3. roof-mounted straight-through valve according to claim 1 is characterized in that being set with adjustment sleeve (6) outside the valve rod (9) between described spool (3) and the valve gap (4), and fine setting spring (5) is installed between adjustment sleeve (6) and valve gap (4).
4. roof-mounted straight-through valve according to claim 1 is characterized in that described valve rod (9) is provided with the anticreep convex shoulder with described valve gap (4) cooperating.
5. roof-mounted straight-through valve according to claim 1 is characterized in that being provided with flange gasket (13) between described valve gap (4) and the valve body (1), and this flange gasket (13) is Stainless Steel Band and Expanded graphite spiral wound gasket.
6. roof-mounted straight-through valve according to claim 2 is characterized in that the centre of sphere of described spool (3) upwards is offset 3mm with respect to position, liquid pass hole medial axis.
7. roof-mounted straight-through valve according to claim 3 is characterized in that described fine setting spring (5) is wavy spring or butterfly spring.
8. according to the arbitrary described roof-mounted straight-through valve of claim 1-7, it is characterized in that described valve body (1) is provided with fixed base (14), this fixed base (14) extend in the spool (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520114625 CN2846925Y (en) | 2005-11-11 | 2005-11-11 | Top mounted straight ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520114625 CN2846925Y (en) | 2005-11-11 | 2005-11-11 | Top mounted straight ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2846925Y true CN2846925Y (en) | 2006-12-13 |
Family
ID=37512349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520114625 Expired - Fee Related CN2846925Y (en) | 2005-11-11 | 2005-11-11 | Top mounted straight ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2846925Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180010A (en) * | 2014-08-28 | 2014-12-03 | 上海阀门厂有限公司 | Top-mounted ball valve |
| CN110792806A (en) * | 2019-11-28 | 2020-02-14 | 北京比泽尔制冷设备有限公司 | Electric four-way reversing valve and refrigerating system |
| CN111365520A (en) * | 2020-04-08 | 2020-07-03 | 河南省吉特阀门有限公司 | Combined valve of pneumatic high-pressure oil ejector |
-
2005
- 2005-11-11 CN CN 200520114625 patent/CN2846925Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180010A (en) * | 2014-08-28 | 2014-12-03 | 上海阀门厂有限公司 | Top-mounted ball valve |
| CN110792806A (en) * | 2019-11-28 | 2020-02-14 | 北京比泽尔制冷设备有限公司 | Electric four-way reversing valve and refrigerating system |
| CN111365520A (en) * | 2020-04-08 | 2020-07-03 | 河南省吉特阀门有限公司 | Combined valve of pneumatic high-pressure oil ejector |
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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 |
Granted publication date: 20061213 Termination date: 20141111 |
|
| EXPY | Termination of patent right or utility model |