CN202327175U - Ball valve - Google Patents
Ball valve Download PDFInfo
- Publication number
- CN202327175U CN202327175U CN2011203749396U CN201120374939U CN202327175U CN 202327175 U CN202327175 U CN 202327175U CN 2011203749396 U CN2011203749396 U CN 2011203749396U CN 201120374939 U CN201120374939 U CN 201120374939U CN 202327175 U CN202327175 U CN 202327175U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- ball
- groove
- spool ball
- 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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- Taps Or Cocks (AREA)
- Valve Housings (AREA)
Abstract
The utility model discloses a ball valve, and belongs to the field of valves. The ball valve comprises a valve body, a valve rod, a valve cover and a valve element ball arranged in a valve cavity. A medium outlet hole, a valve rod mounting hole and a valve element ball mounting channel are formed in the valve body, and are communicated with the valve cavity respectively. The valve cover is in threaded fit with the valve element ball mounting channel. A medium inlet hole is formed in the valve cover. A square groove is formed on the surface of the valve element ball. A runner is formed in the valve element ball, and is communicated with the medium inlet hole and the medium outlet hole respectively. Sealing rings are arranged between the wall of the valve cavity and the valve element ball. The valve rod is arranged in the valve rod mounting hole. The lower end of the valve rod is matched with the groove, and is embedded into the groove. A sealing ring mounting groove and a stepped end face are arranged on the surface of the valve rod. An O-shaped sealing ring is arranged in the sealing ring mounting groove. A flexible washer is sleeved on the surface of the valve rod, and leans against the stepped end face. The washer is sleeved, so that the shortcoming that the inner wall of the valve rod mounting hole is easily scratched by sharp corners at the edge of the end face of the valve rod is overcome, and the sealing performance of the ball valve is improved.
Description
Technical field
The utility model belongs to valve field, and is especially relevant with a kind of ball valve.
Background technique
As shown in Figure 1; Known ball valve comprises valve body 4, valve rod 1, valve gap 7 and is arranged at the spool ball 6 in the valve inner valve pocket that valve body is provided with medium delivery outlet 3, valve rod mounting hole and the spool ball installation channel that communicates with valve pocket respectively, valve gap 7 and the installation of spool ball installation channel screw-thread fit; Medium input hole 8 is set on the valve gap; Spool ball 6 surfaces are provided with square groove, and spool ball 6 set inside runners 2 are connected with described medium input hole 8, medium delivery outlet 3 respectively at open mode runner 2; Be provided with seal ring 5 between valve cavity wall and the spool ball; Valve rod 1 is installed on the valve rod mounting hole, and valve rod 1 one ends are flush-mounted in described groove can stir spool ball 6 rotation, and spool ball 6 is from the spool ball installation channel body cavity of packing into.Sealing and the installing and locating of such ball valve in order to strengthen valve rod; Be provided with seal ring mounting groove and ladder end face in stem surface; The existence of mounting groove and ladder end face just has corresponding wedge angle and exists; These wedge angles vertically are installed at valve rod and scratch the valve rod mounting hole in the process of valve rod mounting hole easily, cause sealability to reduce.
The model utility content
The purpose of the utility model is exactly to solve valve rod damages the valve rod mounting hole easily in installation process defective, and a kind of ball valve that can effectively prevent to scratch in the assembly process valve rod mounting hole is provided.
For this reason, the utility model adopts following technological scheme: a kind of ball valve comprises valve body, valve rod, valve gap and is arranged at the spool ball in the valve inner valve pocket; Valve body is provided with medium delivery outlet, valve rod mounting hole and the spool ball installation channel that communicates with valve pocket respectively, and valve gap and spool ball installation channel screw-thread fit are installed, and the medium input hole is set on the valve gap; Spool ball surface is provided with square groove, spool ball set inside runner, and runner is connected with described medium input hole, medium delivery outlet respectively when open mode; Be provided with seal ring between valve cavity wall and the spool ball, valve rod is installed on the valve rod mounting hole, and valve rod lower end and described groove fit also are flush-mounted in this groove; Can stir the rotation of spool ball; The spool ball is from the spool ball installation channel valve pocket of packing into, and stem surface is provided with seal ring mounting groove and ladder end face, is provided with O-ring seals in the seal ring mounting groove; It is characterized in that: described stem surface is set with flexible gaskets; This packing ring is posted by described ladder end face, and in the valve rod installation process, packing ring can prevent that the wedge angle at ladder end face edge from scratching valve rod mounting hole inwall.
Use the utility model can reach following beneficial effect: the utility model can prevent that through the suit packing ring valve rod wedge angle from scratching valve rod mounting hole inwall, improves the sealability of ball valve.
Description of drawings
Fig. 1 is the sectional drawing of existing ball valve.
Fig. 2 is the sectional drawing of the utility model.
The same area label is identical among the figure.
Embodiment
Be described in detail below in conjunction with the embodiment of accompanying drawing the utility model.
As shown in Figure 2, the utility model ball valve comprises valve body 4, valve rod 1, valve gap 7 and is arranged at the spool ball 6 in the valve inner valve pocket that valve body 4 is provided with medium delivery outlet 3, valve rod mounting hole and the spool ball installation channel that communicates with valve pocket respectively; Valve gap 7 is installed with spool ball installation channel screw-thread fit, and medium input hole 8 is set on the valve gap 7, and spool ball 6 surfaces are provided with square groove; Spool ball 6 set inside runners 2, runner 2 is connected with medium input hole 8, medium delivery outlet 3 respectively when open mode, is provided with two seal rings 5 between valve cavity wall and the spool ball 6; Space between valve cavity wall and the spool ball surface seals; Valve rod 1 is installed in the valve rod mounting hole, and valve rod 1 lower end and described groove fit also are flush-mounted in this groove, can stir the rotation of spool ball; Whether realization runner 2 is communicated with medium input hole 8, medium delivery outlet 3; Spool ball 6 is from the spool ball installation channel valve pocket of packing into, and the surface of valve rod 1 is provided with seal ring mounting groove and ladder end face, is provided with O-ring seals 10 in the seal ring mounting groove; Stem surface is set with flexible gaskets 9; Packing ring 9 is posted by described ladder end face, and in the valve rod installation process, packing ring can prevent that the wedge angle at ladder end face edge from scratching valve rod mounting hole inwall.
Claims (1)
1. ball valve; Comprise valve body (4), valve rod (1), valve gap (7) and be arranged at the spool ball (6) in the valve inner valve pocket; Valve body (4) is provided with medium delivery outlet (3), valve rod mounting hole and the spool ball installation channel that communicates with valve pocket respectively, and valve gap (7) is installed with spool ball installation channel screw-thread fit, and medium input hole (8) is set on the valve gap (7); Spool ball (6) surface is provided with square groove; Spool ball (6) set inside runner (2), runner when open mode (2) is connected with described medium input hole (8), medium delivery outlet (3) respectively, is provided with seal ring (5) between valve cavity wall and the spool ball (6); Valve rod (1) is installed on the valve rod mounting hole; Valve rod (1) lower end and described groove fit also are flush-mounted in this groove, and valve rod (1) surface is provided with seal ring mounting groove and ladder end face, is provided with O-ring seals (10) in the seal ring mounting groove; It is characterized in that: described valve rod (1) surface is set with flexible gaskets (9), and packing ring (9) is posted by described ladder end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203749396U CN202327175U (en) | 2011-09-29 | 2011-09-29 | Ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203749396U CN202327175U (en) | 2011-09-29 | 2011-09-29 | Ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327175U true CN202327175U (en) | 2012-07-11 |
Family
ID=46439154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203749396U Expired - Fee Related CN202327175U (en) | 2011-09-29 | 2011-09-29 | Ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900863A (en) * | 2012-10-26 | 2013-01-30 | 南通龙源电站阀门有限公司 | Quick assembly and disassembly ball valve |
-
2011
- 2011-09-29 CN CN2011203749396U patent/CN202327175U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900863A (en) * | 2012-10-26 | 2013-01-30 | 南通龙源电站阀门有限公司 | Quick assembly and disassembly 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 |
Granted publication date: 20120711 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |