CN204985808U - Heavy -calibre ball valve sealed firmly - Google Patents
Heavy -calibre ball valve sealed firmly Download PDFInfo
- Publication number
- CN204985808U CN204985808U CN201520532527.9U CN201520532527U CN204985808U CN 204985808 U CN204985808 U CN 204985808U CN 201520532527 U CN201520532527 U CN 201520532527U CN 204985808 U CN204985808 U CN 204985808U
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- valve
- valve body
- spheroid
- valve rod
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Abstract
The utility model discloses a heavy -calibre ball valve sealed firmly, including valve body, spheroid, valve rod, disk seat, connection pad and actuating mechanism, the valve body comprises left valve body and right valve body, a serial communication port, both ends all are equipped with the backup pad about spheroidal, locating pin and valve body fixed connection are passed through to the backup pad, be equipped with face sealed firmly between the contact surface of disk seat and valve body, still be equipped with a packing box in the valve body, the packing box parcel is on the side of valve rod, the valve rod imbeds in actuating mechanism's keyway with the unconnected one end of spheroid, actuating mechanism is fixed with the connection pad, and actuating mechanism passes through the valve rod and drives the spheroid rotation, realizes opening or closing of ball valve. The utility model has the advantages of the spheroid is transmitted to the valve body by backup pad and packing box by medium thrust, and the valve rod only bears the moment of torsion of valve, does not hold the flexural square, thereby protect the valve rod effectively to reduce the moment of opening and close of valve, prolonged valve life.
Description
Technical field
The utility model relates to a kind of ball valve, particularly a kind of large caliber hard seal ball-valve.
Background technique
Traditional metal hard-sealing ball valve, generally includes valve body, valve gap, spheroid, valve rod, valve seat, land and actuator; Valve rod except by except operation moment of torsion, is also subject to the flexural load produced from line pressure in total head difference course of action; And due in medium usually containing the dust that granularity is very little, be easy to be bonded between spheroid and sealing surface of seat, easily cause the ill effects such as sealing face leakage, valve seat are stuck, the increase of valve opening and closing moment.
Model utility content
The technical problems to be solved in the utility model is to provide that a kind of structure is simple, the large caliber hard seal ball-valve of long service life.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of large caliber hard seal ball-valve, comprise valve body, spheroid, valve rod, valve seat, land and actuator, described valve body is made up of left valve barrel and right valve barrel; The two ends up and down of described spheroid are equipped with dunnage, and described dunnage is fixedly connected with valve body by locating stud; Be provided with hard sealing surface between described valve seat and the surface of contact of valve body, be also provided with a stuffing box in described valve body, described stuffing box is wrapped on the side of valve rod; Described valve rod and the unconnected one end of spheroid are embedded in the keyway of actuator; Actuator and land are fixed, and actuator drives spheroid to rotate by valve rod, realizes opening or closing of ball valve.
In an embodiment of the present utility model, between described left and right valve body and corresponding valve seat, cavity is set respectively, in described cavity, is provided with "O"-ring, fire proof seal circle, spring and trim ring.
By technique scheme, the beneficial effects of the utility model are:
The utility model has the advantage of that suffered by spheroid, medium thrust is passed to valve body by dunnage and stuffing box, valve rod only bears the moment of torsion of valve, does not bear moment of flexure; Thus effectively protect valve rod, and reduce the keying moment of valve, extend valve working life.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model structural representation;
Fig. 2 is the enlarged view of A in Fig. 1;
Fig. 3 is the enlarged view of B in Fig. 1;
Fig. 4 is the structural representation of dunnage;
Numeral and the corresponding part title represented by letter in figure:
10, valve body 11, left valve barrel 12, right valve barrel 30, spheroid 40, valve rod 50, valve seat 60, land 70, actuator 80, dunnage 81, sphere installation hole 82, locating stud 90, hard sealing surface 100, stuffing box 110, "O"-ring 120, fire proof seal circle 130, spring 140, trim ring.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See shown in Fig. 1 to Fig. 4, the utility model discloses a kind of large caliber hard seal ball-valve, comprise valve body 10, spheroid 30, valve rod 40, valve seat 50, land 60 and actuator 70, valve body 10 is made up of left valve barrel 11 and right valve barrel 12; The two ends up and down of spheroid 30 are equipped with dunnage 80, and the middle part of dunnage 80 is provided with sphere installation hole 81, and dunnage 80 is set on spheroid 30, and dunnage 80 is fixedly connected with valve body 10 by locating stud 82; Be provided with hard sealing surface 90 between the surface of contact of valve seat 50 and valve body 10, be also provided with a stuffing box 100 in valve body 10, stuffing box 100 is wrapped on the side of valve rod 40; Valve rod 40 and the unconnected one end of spheroid 30 are embedded in the keyway of actuator 70; Actuator 70 is fixed with land 60, and actuator 70 drives spheroid 30 to rotate by valve rod 40, realizes opening or closing of ball valve.
The utility model arranges cavity respectively between left and right valve body and corresponding valve seat 50, is provided with "O"-ring 110, fire proof seal circle 120, spring 130 and trim ring 140 in cavity; Which raises sealability, extend working life.
The utility model has the advantage of that suffered by spheroid, medium thrust is passed to valve body by dunnage and stuffing box, valve rod only bears the moment of torsion of valve, does not bear moment of flexure; Thus effectively protect valve rod, and reduce the keying moment of valve, extend valve working life.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. a large caliber hard seal ball-valve, comprises valve body, spheroid, valve rod, valve seat, land and actuator, and described valve body is made up of left valve barrel and right valve barrel; It is characterized in that, the two ends up and down of described spheroid are equipped with dunnage, and described dunnage is fixedly connected with valve body by locating stud; Be provided with hard sealing surface between described valve seat and the surface of contact of valve body, be also provided with a stuffing box in described valve body, described stuffing box is wrapped on the side of valve rod; Described valve rod and the unconnected one end of spheroid are embedded in the keyway of actuator; Actuator and land are fixed, and actuator drives spheroid to rotate by valve rod, realizes opening or closing of ball valve.
2. a kind of large caliber hard seal ball-valve according to claim 1, is characterized in that: arrange cavity respectively between described left and right valve body and corresponding valve seat, is provided with "O"-ring, fire proof seal circle, spring and trim ring in described cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520532527.9U CN204985808U (en) | 2015-07-21 | 2015-07-21 | Heavy -calibre ball valve sealed firmly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520532527.9U CN204985808U (en) | 2015-07-21 | 2015-07-21 | Heavy -calibre ball valve sealed firmly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204985808U true CN204985808U (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520532527.9U Active CN204985808U (en) | 2015-07-21 | 2015-07-21 | Heavy -calibre ball valve sealed firmly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204985808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481838A (en) * | 2016-12-05 | 2017-03-08 | 浙江标盛阀门制造有限公司 | A kind of low torque natural gas fixing ball valve |
| CN114645954A (en) * | 2022-04-15 | 2022-06-21 | 天津三御流体控制科技有限公司 | Non-metal fixed ball valve |
-
2015
- 2015-07-21 CN CN201520532527.9U patent/CN204985808U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106481838A (en) * | 2016-12-05 | 2017-03-08 | 浙江标盛阀门制造有限公司 | A kind of low torque natural gas fixing ball valve |
| CN114645954A (en) * | 2022-04-15 | 2022-06-21 | 天津三御流体控制科技有限公司 | Non-metal fixed ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201825 Jiading Jiading District Industrial Zone, Bao Qian Road, No. 3788 Patentee after: Shanghai Kai valve Limited by Share Ltd Address before: 201825 Jiading Jiading District Industrial Zone, Bao Qian Road, No. 3788 Patentee before: Shanghai Kai-Gong Valve Co., Ltd. |