CN201065966Y - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN201065966Y CN201065966Y CNU2007201126002U CN200720112600U CN201065966Y CN 201065966 Y CN201065966 Y CN 201065966Y CN U2007201126002 U CNU2007201126002 U CN U2007201126002U CN 200720112600 U CN200720112600 U CN 200720112600U CN 201065966 Y CN201065966 Y CN 201065966Y
- Authority
- CN
- China
- Prior art keywords
- valve
- connecting head
- spool
- valve seat
- safety check
- 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
Links
- 238000007789 sealing Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 abstract description 7
- 239000012212 insulator Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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- Taps Or Cocks (AREA)
- Check Valves (AREA)
Abstract
The utility model relates to a ball valve, which comprises a valve body, a global valve core, a handle, and a valve rod arranged in an axle hole. A convex neck with an axle hole is arranged on the vertical side of the valve body, the global valve core is rotationally arranged in the valve body, and the both ends of the valve rod are respectively connected with the global valve core and the handle and drive the global valve core to revolve. The utility model is characterized in that a first connecting head is arranged at an axial inlet end of the valve body, and a check valve is arranged in the first connecting head. The check valve is arranged in the ball valve of the utility model, thus realizing that the liquid back flow can be prevented; simultaneously, a groove is arranged in the inner hole of the first connecting head, thereby the check valve can be held in the inner hole of the first connecting head, mutually clamped, matched and fixed with the groove of the first connecting head through a clamping edge, the check valve can be firmly and conveniently arranged in the connecting head, and when the check valve is required to be replaced or not used, the replacement and the disassembly are convenient.
Description
Technical field
The utility model relates to a kind of ball valve.
Background technique
In industry such as building, hot-water heating and civilian pipe-line system, common ball valve mostly is bi-directional configuration, do not have the effect that stops medium to flow backwards, liquid can pass through ball valve from any direction at ball valve two ends, this ball valve is easy to take place the refluence phenomenon, is not suitable for using such as the occasion that has filtration, one-way flow at some.In the past, people adopt the independent in addition safety check of installing in mounting ball valve more, and safety check is arranged on the entrance end of ball valve, in case fluid stopping is back to again in the ball valve through the liquid of ball valve, still, this way all needs to install in addition safety check at every turn, construct cumbersome and cost is higher, and take certain space, therefore, await further to improve.
The model utility content
Technical problem to be solved in the utility model be provide at above-mentioned prior art present situation a kind of easy for installation, can prevent the ball valve that liquid flows backwards.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: this ball valve includes
One valve body has the protruding neck in a tape spool hole at vertical side;
One spherical valve core is arranged in the valve body rotationally;
One handle; And
One is arranged on the valve rod in the described axis hole, and its two ends connect spherical valve core and handle respectively, and drives the spherical valve core rotation under handle rotates;
It is characterized in that: described valve body has first connecting head in axial inlet end, is provided with safety check in first connecting head.
For guarantee to be connected firmly between the safety check and first connecting head, easy accessibility, described first connecting head has the endoporus of a band groove, the valve base surface of described safety check has and the suitable edge of described groove, safety check is contained in the first connecting head endoporus and the groove by the edge and first connecting head block mutually join fixing.
In order to make ball valve have the non-return effect of one-way flow, described safety check comprises valve seat, spool that can in valve seat, slide and the spring that is connected valve seat and spool, wherein, described valve seat has pilot hole at outlet end, on the entrance point valve base inner wall, has protuberance, the afterbody and the protuberance of described spool offset, pilot hole is passed in the end of spool, described spring one end connects the spool afterbody, the other end is connected on the valve seat outlet end inwall relative with the spool afterbody accordingly, described spring makes the spool afterbody have all the time the trend that offsets and seal the valve seat entrance point with the valve seat protuberance, guarantees that spool can keep out and seal the entrance point of valve seat all the time.
In order to strengthen sealing, prevent the leakage of safety check, can also be provided with inside and outside seal ring on the described valve seat, the position of inside and outside seal ring can be determined according to the rigging position structure between the concrete structure of safety check and it and the connecting head.
Described inner seal ring is arranged at the position that valve seat protuberance and spool offset, when spool is kept out when sealing the valve seat import at the valve seat protuberance, can effectively prevent the leak of liquid between valve seat and the spool, the protuberance of this position has inner groovy, and inner seal ring is fastened in the described inner groovy; Described exterior seal ring then is arranged at the position near the valve seat end, can strengthen the sealing between the valve seat and first connecting head, prevents the leakage of liquid simultaneously, groove outside valve seat has on end outer surface, and described exterior seal ring is fastened in the outer groove.
Being connected between the five metals electromechanics such as ball valve and water pump mostly being metal links to each other, and in the plumbing pipe system, because surrounding environment humidity, just be easy to produce electric conduction phenomena, when described first connecting head when check valve inlet end one side also connects a flange, the described flange and first connecting head have surface of contact at interval and are provided with an insulating bush, can effectively play and prevent electric action, and have seal action simultaneously.
In order to make sealing effect better, described valve stem casing is provided with the O RunddichtringO, and the Placement of valve rod and handle and spherical valve core can be utilized the various schemes of prior art, the upper end and the handle of valve rod can be fastenedly connected and fix with lead sealing by a screw simply, the lower end of valve rod is connected with the fluting close-fitting of spherical valve core.
For can with realize and being connected of other valve bodies that described valve body also is connected with second connecting head at the axially open the other end, the Placement of this second connecting head can adopt existing various technology, as flange connect, be threaded, cutting ferrule connection or welding etc.
Compared with prior art, advantage of the present utility model is to be provided with safety check in ball valve, does not need to install separately in addition safety check, can realize preventing that ball valve liquid from flowing backwards; Simultaneously, by groove being set at the first connecting head endoporus, and correspondingly at the valve base surface setting and the suitable edge of described groove of safety check, thereby safety check is contained in the first connecting head endoporus and the groove by the edge and first connecting head block mutually join fixing, can firmly and easily be mounted on safety check in the connecting head, when safety check need be replaced or be no, replacing and dismounting were all very convenient.
Description of drawings
Fig. 1 is the utility model embodiment's a perspective view.
Fig. 2 is total assembling structure sectional view of the utility model embodiment.
Fig. 3 is the structural representation of the utility model embodiment's connecting head.
Fig. 4 is the sectional view of Fig. 3 connecting head.
Fig. 5 is the structural representation of the utility model embodiment's safety check.
Fig. 6 is the sectional view of Fig. 5 safety check.
Fig. 7 is the structural representation of the utility model embodiment's loose joint flange.
Fig. 8 is the sectional view of Fig. 7 loose joint flange.
Fig. 9 is the structural representation of the utility model embodiment's insulating bush.
Figure 10 is the sectional view of Fig. 9 insulating bush.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1～Figure 10 is a preferred embodiment of the present utility model, this ball valve includes the valve body 1 that has the protruding neck 11 in a tape spool hole at vertical side, be provided with spherical valve core 2 in the valve body 1 rotationally, described spherical valve core 2 is provided with sealing gasket 21 in the contacting point of its surface, gateway, rear and front end and valve body 1 passage; In described axis hole, also be provided with valve rod 3, its two ends connect spherical valve core 2 and handle 4 respectively, and driving spherical valve core 2 rotations under handle 4 rotates, in order better to play seal action, be arranged with O RunddichtringO 31 on the described valve rod 3, the upper end of valve rod 3 and handle 4 are fastenedly connected and fix with the lead sealing (not shown) by a screw 5, and the lower end of valve rod 3 is connected with fluting 22 close-fittings of spherical valve core 2, referring to Fig. 1, Fig. 2.
As Fig. 3～Fig. 5, and valve body 1 is fixedly connected with first connecting head 6 at the threaded one end of axially open, be provided with safety check 7 in first connecting head 6, described first connecting head 6 has the endoporus of a band groove 61, the valve base surface of described safety check 7 has the edge 71 suitable with described groove 61, safety check 7 be contained in first connecting head, 6 endoporus and the groove 61 by the edge 71 and first connecting head 6 mutually card join fixing.Described valve body 1 the other end of axially open also be threaded convenient second connecting head 6 that is connected with other pipelines '.
As shown in Figure 6, this safety check 7 comprises valve seat 72, spool 73 that can in valve seat 72, slide and the spring 74 that is connected valve seat 72 and spool 73, wherein, described valve seat 72 has pilot hole 721 at outlet end, on entrance point valve seat 72 inwalls, has protuberance 722, the afterbody of described spool 73 and protuberance 722 offset, pilot hole 721 is passed in the end of spool 73, described spring 74 1 ends connect spool 73 afterbodys, the other end is connected on the valve seat 72 outlet end inwall relative with spool 73 afterbodys accordingly, and described spring 74 makes spool 73 afterbodys have all the time the trend that offsets and seal valve seat 72 entrance points with valve seat protuberance 722.Described safety check 7 also has and prevents to leak and inner seal ring 75, the exterior seal ring 76 of effectively sealing.Wherein, described inner seal ring 75 is arranged at the position that valve seat protuberance 722 and spool 73 offset, the protuberance 722 of this position has inner groovy, inner seal ring 75 is fastened in the described inner groovy, described exterior seal ring 76 is arranged at the position near valve seat 72 ends, groove outside valve seat 72 has on end outer surface, described exterior seal ring 76 is fastened in the outer groove.
As Fig. 7～shown in Figure 10, described first connecting head 6 is connected with other electromechanical equipments by socket one flange, described flange can be fixed structure or movable structure, preferably adopt loose joint flange 8 to install with convenient, loose joint flange 8 has indent " T " font hole 81, loose joint flange 8 can rotate arbitrarily after being installed on first connecting head 6, and loose joint flange 8 also has two mounting holes 82,83 so that the location.And, described first connecting head 6 also be arranged with on the outer surface of safety check 7 entrance points one side suitable insulating bush 9, the first connecting heads 6 of that adopt a nonmetallic material and external frame and first connecting head 6 with end face that valve body 1 is connected on have equally the seal ring 9 that plays seal action '.
During installation, before being assembled into first connecting head 6 on the valve body 1, can insulator 9 be inserted on first connecting head 6 earlier, and assurance insulator 9 big end 91 end faces and connecting heads 6 big end 62 upper-end surfaces applyings, subsequently in the insulator 9 overcoats connection orchid 8 of taking over a job, fitting with insulator 9 big ends 91 upper-end surfaces in the endoporus bottom surface 81 that guarantees loose joint flange 8 simultaneously, leaves certain interval between loose joint flange 8 and insulator 9 cylindricals, can guarantee that the loose joint flange freely rotates.Thus because between first connecting head 6 and the loose joint flange 8 every one deck insulator 9, mutually between by nonmetal contact, can guarantee that both can not produce electric conduction phenomena.
The installation of safety check 7 is also more convenient, only needs safety check 7 is carried out along the axis hole of first connecting head 6, snaps into up to the edge 71 of described safety check 7 motionlessly in the groove 61 in the described connecting head 6 promptly to be in place.At this moment, when medium A direction as shown in Figure 2 flowed into ball valve, spool 73 was subjected to pressure medium extrusion spring 74, and when pressure medium during greater than the elastic force of spring 74, medium backs down safety check 7 and flows into ball valve; When medium when as shown in Figure 2 B direction flows into ball valve, because of non-return valve core 73 is subjected to pressure medium, under the elastic-restoring force effect of spring 74, spool 73 offseted with protuberance 722 and sealed valve seat 72 imports again the while, stop medium to flow out to inlet, prevent that effectively medium from flowing backwards from the A of safety check.
Claims (8)
1. a ball valve includes
One valve body (1) has the protruding neck (11) in a tape spool hole at vertical side;
One spherical valve core (2) is arranged in the valve body (1) rotationally;
One handle (4); And
One is arranged on the valve rod (3) in the described axis hole, and its two ends connect spherical valve core (2) and handle (4) respectively, and drives spherical valve core (2) rotation under handle (4) rotates;
It is characterized in that: described valve body (1) has first connecting head (6) in axial inlet end, is provided with safety check (7) in first connecting head (6).
2. ball valve according to claim 1, it is characterized in that described first connecting head (6) has the endoporus of a band groove (61), the outer surface of described safety check (7) has the edge (71) suitable with described groove (61), and safety check (7) is contained in first connecting head (6) endoporus and joins fixing by edge (71) and the mutual card of the groove (61) of first connecting head (6).
3. ball valve according to claim 2, it is characterized in that described safety check (7) comprises valve seat (72), spool (73) that can in valve seat (72), slide and the spring (74) that is connected valve seat (72) and spool (73), wherein, described valve seat (72) has pilot hole (721) at outlet end, on the entrance point valve base inner wall, has protuberance (722), the afterbody and the protuberance of described spool (73) offset, pilot hole (721) is passed in the end of spool (73), described spring (74) one ends connect spool (73) afterbody, the other end is connected on valve seat (72) the outlet end inwall relative with spool (73) afterbody accordingly, and described spring (74) makes spool (73) afterbody have all the time the trend that offsets and seal valve seat (72) entrance point with valve seat protuberance (722).
4. ball valve according to claim 3 is characterized in that described safety check (7) also is provided with inside and outside seal ring on valve seat (72).
5. ball valve according to claim 4, it is characterized in that described inner seal ring (75) is arranged at the position that valve seat protuberance (722) and spool (73) offset, the protuberance of this position has inner groovy, inner seal ring is fastened in the described inner groovy, described exterior seal ring (76) is arranged at the end near valve seat, groove outside valve seat has on end outer surface, described exterior seal ring is fastened in the outer groove.
6. according to the described ball valve of arbitrary claim in the claim 1～5, it is characterized in that described first connecting head (6) also connects a flange (8) in safety check (7) entrance point one side, described flange (8) has surface of contact at interval with first connecting head (6) and is provided with an insulating bush (9).
7. ball valve according to claim 6, it is characterized in that described valve stem casing is provided with the O RunddichtringO, the upper end of valve rod (3) and handle (4) are fastenedly connected and fix with lead sealing by a screw (5), and the lower end of valve rod (3) is connected with the fluting close-fitting of spherical valve core (2).
8. ball valve according to claim 7 is characterized in that described valve body (1) also is connected with second connecting head (6 ') at the axially open the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201126002U CN201065966Y (en) | 2007-07-25 | 2007-07-25 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201126002U CN201065966Y (en) | 2007-07-25 | 2007-07-25 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201065966Y true CN201065966Y (en) | 2008-05-28 |
Family
ID=39483143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201126002U Expired - Fee Related CN201065966Y (en) | 2007-07-25 | 2007-07-25 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201065966Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042107A (en) * | 2015-08-11 | 2015-11-11 | 宁波日安阀门有限公司 | Ball valve with direct inserting clamping and pressing connector and movable flange connector |
| CN111649154A (en) * | 2020-06-04 | 2020-09-11 | 呼和浩特市蒙瓦阀业有限公司 | Integrated check ball valve |
-
2007
- 2007-07-25 CN CNU2007201126002U patent/CN201065966Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042107A (en) * | 2015-08-11 | 2015-11-11 | 宁波日安阀门有限公司 | Ball valve with direct inserting clamping and pressing connector and movable flange connector |
| CN111649154A (en) * | 2020-06-04 | 2020-09-11 | 呼和浩特市蒙瓦阀业有限公司 | Integrated check ball valve |
| CN111649154B (en) * | 2020-06-04 | 2022-02-15 | 呼和浩特市蒙瓦阀业有限公司 | Integrated check ball valve |
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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: 20080528 Termination date: 20160725 |