CN203743490U - Plum-blossom-shaped forged steel ball valve - Google Patents
Plum-blossom-shaped forged steel ball valve Download PDFInfo
- Publication number
- CN203743490U CN203743490U CN201420118035.0U CN201420118035U CN203743490U CN 203743490 U CN203743490 U CN 203743490U CN 201420118035 U CN201420118035 U CN 201420118035U CN 203743490 U CN203743490 U CN 203743490U
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- valve
- valve rod
- steel ball
- blossom
- ball valve
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Abstract
The utility model discloses a plum-blossom-shaped forged steel ball valve. The plum-blossom-shaped forged steel ball valve comprises a valve body, a valve seat and a valve rod. A valve element is arranged in the valve body. A valve rod groove is formed in the valve element. The valve rod comprises a drive boss which is connected with the valve element. The drive boss is connected with the valve rod groove in an embedded mode, and the connection surface is in a cross shape. The drive boss is in linkage fit with the valve element. A protecting and fixing sleeve is arranged on the valve rod. The protecting and fixing sleeve is a metal protecting and fixing sleeve. The protecting and fixing sleeve is arranged in the middle of the valve rod and is of a hollow cylinder shape. Plum-blossom-shaped outlines are adopted by the valve body and the valve seat respectively, so that the shapes of the valve body and the valve seat are identical. The plum-blossom-shaped forged steel ball valve is simple in structure, high in practicability and capable of effectively reducing impact force borne by the valve rod; besides, the anti-deformation effect is good, corrosion of the valve rod can be reduced, and the service life is long. The plum-blossom-shaped forged steel ball valve can be widely applied to various occasions.
Description
Technical field
The utility model relates to valve field, relates in particular to a kind of blossom type forging steel ball valve.
Background technique
Forging steel ball valve is widely used one in current ball valve.Its working principle is to make valve unimpeded or inaccessible by rotary valve rod, can whole-through diameter ball valve, an angle of 90 degrees, ball valve switch be light, volume is little, can make heavy caliber, sealing is reliable, simple in structure, easy to maintenance, sealing surface and the sphere closed state of being everlasting, is difficult for by medium erosion, is widely used in every profession and trade.But along with the development of modern industry, forging steel ball valve sealability requires more and more higher, the pressure range of bearing is increasing, the open and close torque of ball valve is also increasing, and in the time that tension, the anti-twisting property of valve rod is inadequate, valve rod just there will be distortion, scuffing, the situation of fracture even, and impact is used.Therefore, traditional forging steel ball valve can not adapt to existing demand.
A kind of five chip forging steel ball valves are disclosed in Chinese invention patent prospectus 201220435730.0, comprise middle valve body, spheroid, valve rod, driver, lower shaft, side valve body, flange plate and stuffing box, described middle valve body is fixedly connected with by connecting body with side valve body, connecting body inner side is provided with positioning spigot, between described spheroid and side valve body, be also provided with independently valve seat module, valve seat module is connected with ball seal, the outer ring of valve seat module is an outer seat, the end face of outer seat is provided with Sealing, the end face of outer seat is connected with connecting body internal surface, the surface that described outer seat is connected with connecting body is a step-like thrust face, the inner ring of valve seat module is an interior valve seat, interior valve seat end face is provided with Sealing, inside and outside valve base chamber has a space, in gap is provided with some springs connections, outer seat, described interior valve seat is connected with ball seal, interior valve seat and be provided with Sealing with the joint of ball, outer seat one side is provided with the limiting board that in restriction, valve seat moves.This model utility can realize on-line maintenance, is convenient to dismounting, can avoid again housing to leak simultaneously, and the sealing of forging steel ball valve has been made to very large improvement.
But, the forging steel ball valve of said structure is insecure with being connected of spool at pressure, situation lower valve rod that impact force is larger, be easy to cause fractureing of valve rod, this design does not have tension, the anti-twisting property of poppet stem, valve rod still easily deforms and ruptures the in the situation that of high moment of torsion, keep in repair or change, and above-mentioned ball valve layering being too many, also there is certain inconvenience in assembling.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of have stronger tension, counter-bending ability valve rod and forging steel ball valve convenient for assembly for the above-mentioned state of the art.
For achieving the above object, the utility model provides following technological scheme: a kind of blossom type forging steel ball valve, comprise valve body, valve seat, valve rod, in described valve body, be provided with spool, on described spool, be provided with valve rod groove, described valve rod includes the driving boss being connected with spool, and described driving boss is connected with valve rod groove embedding and junction surface is cross, on described valve rod, be provided with anti-solid cover, described valve rod is located in anti-solid cover.
Adopt above-mentioned embedding Placement and cross linkage structure, can effectively increase surface of contact and the area of contact of valve rod and spool, surface of contact has increased by one times, drive the volume of boss also to increase to some extent, make stem bottom be not easy to be fractureed, more firmly connect, and on valve rod, be provided with anti-solid cover, can increase valve rod corrosion protection, anti-ly fracture, anti-bending ability.
As concrete technological scheme of the present utility model, described driving boss is criss-cross construction, and described driving boss comprises round end flat key and tack flat key.Described valve rod groove is shaped to the cross type cavity with described driving boss adaptation, and described valve rod groove comprises elongated slot and short groove, and described elongated slot and short groove are rectangular structure, and described driving boss is plugged in described valve rod groove.
Be set to round end flat key by one of them key, in convenient installation, can ensure that again surface of contact fits tightly, and the size of described valve rod groove is slightly larger than the size that drives boss, avoid installing inconvenience.
Further, described valve rod and spool are linked.
As concrete technological scheme of the present utility model, describedly anti-be admittedly set on valve rod middle part and be open circles tubular.
Further, described anti-solid cover is prevented solid cover for metal, and anti-solid the overlapping of described metal is welded on described valve rod.
Because valve rod needs to contact and produce friction with filler, can produce wearing and tearing and can be corroded to a certain extent, therefore, its intensity and hardness all can be affected.And after adding the anti-solid cover of layer of metal, valve rod middle part has just been subject to effective protection, and because the anti-solid cover of valve rod and metal is welded in one, between them, synchronously rotate all the time.
As improvement of the present utility model, described valve body is identical with the junction surface profile of valve seat.
Adopt this kind of shape and structure, valve seat is consistent with valve body sectional shape, convenient for assembly.
Compared with prior art, the utility model has the advantage of: be provided with the anti-solid cover of metal outward at valve rod, effectively reduced the impact of external force to valve rod, improved counter-bending, resistance to deformation, the anti-corrosion capacity of valve rod, safe and reliable.And the shape of original driving boss is made and having been changed, made it in use more reliable, installed more simple and convenient.Valve body adopts identical blossom type cross section with valve seat, and sectional dimension is consistent, assembles more quick.
Brief description of the drawings
Fig. 1 is blossom type forging steel ball valve perspective view in the utility model embodiment;
Fig. 2 is stem structure schematic diagram in the utility model embodiment;
Fig. 3 is spool plan view in the utility model embodiment;
Fig. 4 is valve seat junction surface schematic diagram in the utility model embodiment;
Fig. 5 is valve body junction surface schematic diagram in the utility model embodiment.
Reference character: 1, valve body; 2, valve seat; 3, spool; 4, valve rod; 5, the anti-solid cover of metal; 6, tack flat key; 7, round end flat key; 8, elongated slot; 9, short groove; 10, valve rod groove.
Embodiment
Below in conjunction with accompanying drawing embodiment, blossom type forging steel ball valve of the present utility model is described in further detail.
The stereochemical structure that has schematically illustrated out blossom type forging steel ball valve in the utility model embodiment of Fig. 1, comprise valve body 1, valve seat 2, valve rod 4, in described valve body 1, be provided with spool 3, on described spool 3, be provided with valve rod groove 10, described valve rod 4 includes the driving boss being connected with spool 3, and described driving boss is connected with valve rod groove 10 embeddings and junction surface is cross.When valve rod 4 rotates, can synchronously drive the rotation of spool 3, reach the object of controlling liquid communication.As shown in Figure 2 and Figure 3, on described driving boss, be provided with round end flat key 7, the short groove 9 on spool is set to rectangular structure, and short groove 9 also leaves space with round end flat key 7 when installation coordinates, and it is very convenient to assemble.
As shown in Figure 2, be provided with anti-solid overlapping on described valve rod 4, described anti-solid cover overlaps 5 admittedly for metal is anti-, and described metal prevents that admittedly overlapping 5 is welded on described valve rod 4 middle parts, and is cylindric.Described metal prevents admittedly overlapping 5 just can not be subject to corrosion and the friction of filler with the face of 4 fitting parts of valve rod, avoid direct friction, greatly improve the surface strength of valve rod 4, in addition, admittedly overlap 5 existence because metal is anti-, to a certain degree share the operational torque that valve rod 4 bears, prevented that valve rod 4 is out of shape and damages, and has improved working life greatly.From Fig. 4, Fig. 5, the utility model adopts the valve seat 2 and valve body 1 that junction surface shape is identical, and such benefit is: valve seat 2 is consistent with valve body 1, has facilitated assembling and dismounting, and sized data is simplified.
When use, utilize the cooperation of the handle being connected with valve rod 4, clockwise rotate handle, handle band ovable valve stem 4 rotates, and valve rod 4 is linked with spool 3, now valve wide open, communication port on communication port on spool 3 and valve body 1 aligns, and liquid can circulate completely.Rotate counterclockwise handle, ball valve is normally off, is realized the circulation of liquid and is closed by handle with sleeve.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technological schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a blossom type forging steel ball valve, comprise valve body, valve seat, valve rod, in described valve body, be provided with spool, on described spool, be provided with valve rod groove, described valve rod includes the driving boss being connected with spool, it is characterized in that: described driving boss is connected with valve rod groove embedding and junction surface is cross, is provided with anti-solid cover on described valve rod, and described valve rod is located in anti-cover admittedly.
2. blossom type forging steel ball valve according to claim 1, it is characterized in that: described driving boss is criss-cross construction, described driving boss comprises round end flat key and tack flat key, described valve rod groove is shaped to the cross type cavity with described driving boss adaptation, described valve rod groove comprises elongated slot and short groove, described elongated slot and short groove are rectangular structure, and described driving boss is plugged in described valve rod groove.
3. blossom type forging steel ball valve according to claim 2, is characterized in that: described valve rod and spool are linked.
4. blossom type forging steel ball valve according to claim 1, is characterized in that: describedly anti-be admittedly set on valve rod middle part and be open circles tubular.
5. blossom type forging steel ball valve according to claim 4, is characterized in that: described anti-solid cover is prevented solid cover for metal, and anti-solid the overlapping of described metal is welded on described valve rod.
6. blossom type forging steel ball valve according to claim 1, is characterized in that: described valve body is identical with the junction surface profile of valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118035.0U CN203743490U (en) | 2014-03-15 | 2014-03-15 | Plum-blossom-shaped forged steel ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420118035.0U CN203743490U (en) | 2014-03-15 | 2014-03-15 | Plum-blossom-shaped forged steel ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203743490U true CN203743490U (en) | 2014-07-30 |
Family
ID=51343291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420118035.0U Expired - Fee Related CN203743490U (en) | 2014-03-15 | 2014-03-15 | Plum-blossom-shaped forged steel ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203743490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259983A (en) * | 2019-07-02 | 2019-09-20 | 李军 | A kind of movable ball valve of valve seat |
-
2014
- 2014-03-15 CN CN201420118035.0U patent/CN203743490U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259983A (en) * | 2019-07-02 | 2019-09-20 | 李军 | A kind of movable ball valve of valve seat |
| CN110259983B (en) * | 2019-07-02 | 2020-10-09 | 良工阀门集团有限公司 | Ball valve with movable valve seat |
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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: 20140730 Termination date: 20150315 |
|
| EXPY | Termination of patent right or utility model |