CN2371402Y - Combined centre-line butterfly valve - Google Patents
Combined centre-line butterfly valve Download PDFInfo
- Publication number
- CN2371402Y CN2371402Y CN 99205797 CN99205797U CN2371402Y CN 2371402 Y CN2371402 Y CN 2371402Y CN 99205797 CN99205797 CN 99205797 CN 99205797 U CN99205797 U CN 99205797U CN 2371402 Y CN2371402 Y CN 2371402Y
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- valve body
- tappet
- valve seat
- 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 combined type center line butterfly valve with a halving valve body. The valve body is formed by the combination of two symmetrical half valve bodies. A valve seat is sealed and fixed inside the valve body by the mode that the two half valve bodies butt and press. A valve core of a butterfly plate is fixed inside the valve seat by a supporting positioning shaft for valve core and a tappet for the valve core. The tappet for the valve core and the valve core of the butterfly plate are poking gearing lining structures. Thereby, the adverse effects of pin connection for the valve use can be eliminated. The utility model has the advantages of long service life, good tightness, reliable operation, convenient maintenance, convenient part replacement, and rapidity.
Description
The utility model relates to a kind of centre-pivoted butterfly valve.
Although existing centre-pivoted butterfly valve structural type is different, but its butterfly plate spool all is to adopt pin to be connected with the spool tappet, long-time use the back to leak to cause valve closing tight or can not continue use, so the working life of existing centre-pivoted butterfly valve is shorter because of the pin fracture makes valve because of pin and the stressed wearing and tearing of pin hole produce.Moreover the position of valve body insert valve seat is monolithic construction, valve maintenance, and part exchanging trouble, inconvenience along with the use of centre-pivoted butterfly valve more and more be extensively, bother and inconvenience also looms large and the incompatibility usage requirement further like this.
The purpose of this utility model is improved existing centre-pivoted butterfly valve, provide a kind of butterfly plate spool to be connected for no pin with the spool tappet, be difficult for sending leakage, make the life-span long, valve dismounting maintenance, part exchanging are easily and efficiently to a minute valve body combined type centre-pivoted butterfly valve.
Be that the valve body of the centre-pivoted butterfly valve that is made of valve body, valve seat, butterfly plate spool and spool tappet is connected by two and half valve bodies of symmetry and combines to minute valve body combined type centre-pivoted butterfly valve, be shaped on the valve seat hugging of symmetry on the butt joint end face of two and half valve bodies and be positioned at the spool tappet through-hole groove that valve seat hugging top is communicated with the valve seat hugging and be positioned at valve seat hugging below and the spool that is communicated with the valve seat hugging supports positioning shaft and inlays the axis hole groove.Constitute the valve seat edge mouthful spool tappet through hole and the spool supporting positioning shaft edge axis hole groove of valve body after the butt joint of two halves valve body respectively.Valve seat is installed in the valve body and valve seat edge mouth and is fixed in the valve body by two halves valve body butt joint crush seal, spool supporting positioning shaft one end is loaded in valve body edge axis hole groove its another axle head and stretches in the valve seat and connect with the butterfly plate spool, and the butterfly plate spool is bearing on the spool positioning support axle.The spool tappet is stretched in the valve seat by the spool tappet through hole of valve body and dials retaining with the butterfly plate spool and connect spool is fixed in the valve seat, and rotational valve core tappet butterfly plate spool rotates valve opening or closure thereupon.
To further improving of minute valve body combined type centre-pivoted butterfly valve be, be fixedly connected with spool tappet sheath on the combinaing valve body, be shaped on annular boss on spool tappet sheath and the end face that valve body is connected, valve body connects the sheath place and is shaped on corresponding annular seal ring hugging, and the spool tappet is positioned at valve body O-ring seal hugging place and is shaped on annular groove.O-ring seal is loaded in the valve seals hugging and by the extruding of spool tappet sheath annular boss spool tappet and valve body interface is sealed.
Eliminated and adopted many adverse effects that the pin connecting structure brought and adopt dialling the retaining connecting structure between minute butterfly plate spool of valve body combined type centre-pivoted butterfly valve and spool tappet along the working life of having grown valve, so its long service life.Valve is a split modular structure, and its maintenance, part exchanging is convenient, fast and be convenient to use.Valve seal is good, is difficult in the using process leaking, so valve working is reliable.
Accompanying drawing is an embodiment of the present utility model, but the utility model is not limited only to embodiment, further specifies the utility model below in conjunction with embodiment.
Fig. 1 is to minute structural drawing of valve body combined type centre-pivoted butterfly valve.
Fig. 2 is the symmetry half valve body butt joint end face assembly structure sectional view to minute valve body combined type centre-pivoted butterfly valve shown in Figure 1.
As shown in the figure, to two and half valve bodies (12) of minute valve body of valve body combined type centre-pivoted butterfly valve by symmetry, (18) combine, two and half valve bodies have the whole pipe connecting flange (11) (17) that connects and are connected backboard (14), (15), two and half valve bodies are by bolt (13), and the fastening butt joint of nut (16) constitutes butterfly valve body.Be shaped on the valve seat hugging of symmetry, the spool tappet through-hole groove that is communicated with the valve seat hugging and spool on the half valve body butt joint end face and support location edge axis hole groove, constitute valve seat edge mouth, spool tappet through hole and spool supporting positioning shaft edge axis hole groove after the butt joint of two halves valve body respectively.The valve seat (19) that has backrest (9) is installed in the valve seat edge mouth and is fixed in the valve body by two halves valve body butt joint crush seal.Spool supporting positioning shaft (26) one ends are loaded on valve body and another axle head is housed in the edge axis hole groove of lining (24) stretches in the valve seat and connects with butterfly plate spool (10) socket joint, and the butterfly plate spool supports by supporting positioning shaft.Valve seat is sealed by seal ring (25) with supporting positioning shaft interface.Spool tappet (2) stretches into the interior end of valve seat and makes prismatic, butterfly plate spool tappet jack is made corresponding polygonal slotted eye, the spool tappet stretches into the polygonal slotted eye that inserts spool in the valve seat by valve body spool tappet through hole, and group retaining cooperation of spool tappet and butterfly plate spool formation connects and spool is fixed in the valve seat.In the valve body spool tappet through hole lining (8) is housed, spool tappet and valve base chamber interface are sealed by seal ring (20).The spool tappet sheath (4) that two ends have adpting flange (3), (7) is connected with valve body and is shaped on annular boss on the end face, its place, aperture, upper end is shaped on the seal ring hugging, valve body connects the sheath place and is shaped on and the corresponding seal ring hugging of sheath annular boss, the spool tappet is positioned at valve seals hugging place and is shaped on annular groove, O-ring seal (6) is housed in the valve seals hugging, and sheath is positioned at annular boss stomidium mouth place lining (5) is housed.Sheath is fastenedly connected by bolt (21) and is fixed on the valve body, and O-ring seal is sealed spool tappet and valve body interface by the extruding of sheath annular boss.Spool tappet free end is stretched out by sheath, and the edge seal ring (1) of O-ring seal (22), (23) that has for sleeping in sheath port is with spool tappet and the sealing of sheath interface.Rotational valve core tappet, valve opening or closure.
Claims (2)
1, to a minute valve body combined type centre-pivoted butterfly valve, by valve body, valve seat, butterfly plate spool and spool tappet constitute, it is characterized in that said valve body is combined by two and half valve bodies of symmetry, be shaped on the valve seat hugging and the spool supporting positioning shaft edge axis hole groove that is positioned at valve seat hugging top and the spool tappet through-hole groove that is communicated with the valve seat hugging and is positioned at valve seat hugging below and is communicated with of symmetry on the butt joint end face of two and half valve bodies with the valve seat hugging, constitute the valve seat edge mouth of valve body after the butt joint of two and half valve bodies respectively, spool tappet through hole and spool supporting positioning shaft edge axis hole groove, valve seat is installed in the valve body and valve seat edge mouth and is fixed in the valve body by two halves valve body butt joint crush seal, spool supporting positioning shaft one end is loaded in the valve body edge axis hole groove its other end and stretches in the valve seat and connect with the butterfly plate spool, the butterfly plate spool is bearing on the spool supporting positioning shaft, the spool tappet is stretched in the valve seat by the spool tappet through hole of valve body and dials retaining with the butterfly plate spool and connect spool is fixed in the valve seat, rotational valve core tappet butterfly plate spool rotates valve opening or closure thereupon.
2, described by claim 1 to a minute valve body combined type centre-pivoted butterfly valve, it is characterized in that being fixedly connected with on the combinaing valve body spool tappet sheath, be shaped on annular boss on spool tappet sheath and the end face that valve seat is connected, valve body connects the sheath place and is shaped on corresponding annular seal ring hugging, and O-ring seal is loaded in the valve seals hugging and by the extruding of spool tappet sheath annular boss spool tappet and valve body interface is sealed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205797 CN2371402Y (en) | 1999-03-04 | 1999-03-04 | Combined centre-line butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99205797 CN2371402Y (en) | 1999-03-04 | 1999-03-04 | Combined centre-line butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2371402Y true CN2371402Y (en) | 2000-03-29 |
Family
ID=34000272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99205797 Expired - Fee Related CN2371402Y (en) | 1999-03-04 | 1999-03-04 | Combined centre-line butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2371402Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506230A (en) * | 2011-09-20 | 2012-06-20 | 南通航海阀门有限公司 | Marine butterfly valve |
| CN110366653A (en) * | 2017-03-14 | 2019-10-22 | 株式会社水研 | The not insertion of the butterfly valve under disconnection state |
-
1999
- 1999-03-04 CN CN 99205797 patent/CN2371402Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506230A (en) * | 2011-09-20 | 2012-06-20 | 南通航海阀门有限公司 | Marine butterfly valve |
| CN110366653A (en) * | 2017-03-14 | 2019-10-22 | 株式会社水研 | The not insertion of the butterfly valve under disconnection state |
| CN110366653B (en) * | 2017-03-14 | 2020-11-24 | 株式会社水研 | Piping structure and method for installing butterfly valve into existing pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |