CN201386815Y - Single-welding type ball valve - Google Patents
Single-welding type ball valve Download PDFInfo
- Publication number
- CN201386815Y CN201386815Y CN200920070317U CN200920070317U CN201386815Y CN 201386815 Y CN201386815 Y CN 201386815Y CN 200920070317 U CN200920070317 U CN 200920070317U CN 200920070317 U CN200920070317 U CN 200920070317U CN 201386815 Y CN201386815 Y CN 201386815Y
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- China
- Prior art keywords
- valve
- valve body
- spheroid
- barrel
- ball valve
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- 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 - Lifetime
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- 238000005493 welding type Methods 0.000 title abstract 3
- 238000003466 welding Methods 0.000 claims abstract description 11
- 230000007935 neutral effect Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model provides a single-welding type ball valve. A ball body is arranged in a cavity of a valve body and provided with a through hole at the middle; a valve rod seat is arranged on the valve body and provided with a valve rod that is connected with the ball body; the valve body comprises two parts of a left valve body and a right valve body, and the left and the right valve body are connected as a whole in a welding way. The single-welding type ball valve has simple structure, few leakage points, easy processing technology and higher comprehensive performance.
Description
Technical field
The utility model relates to a kind of ball valve, particularly a kind of single-side welded ball valve.
Background technique
Ball valve is the opening and closing that realize valve by spheroid around the valve rod axis half-twist.Ball valve is mainly used in cut-out, distributes and changes the media flow direction on pipeline.Because ball-valve structure is simple, good seal performance, therefore use is very extensive, is development in recent years one of valve kind faster.Ball valve under the prior art mainly contains two kinds of structures:
Be illustrated in figure 1 as the double-screw bolt connecting structure ball valve of prior art, Fig. 2 is the A position partial view of Fig. 1; It comprises valve body and spheroid 1; Wherein valve body is made up of middle valve body 2, left valve barrel 4 and right valve barrel 3; Be linked together by double-screw bolt 7 respectively between middle valve body 2 and left valve barrel 4, the right valve barrel 3; Middle valve body 2 is provided with valve rod base 6, and valve rod base 6 is provided with valve rod 5, and valve rod 5 and spheroid 1 connect; Be provided with bracing ring 10 between valve body and the spheroid 1, bracing ring 10 is embedded with O type circle 12 and fire-protection ring 13 with the valve body contacting point, and bracing ring 10 is provided with seal ring 11 with spheroid 1 contacting point.
The double-screw bolt connecting structure ball valve of the prior art, its valve body is divided into left and right sides valve body and middle valve body, and left and right sides valve body connects by double-screw bolt and middle valve body, also needs to increase pad on the connection double-screw bolt.Defective on this structure technology is: (1) has increased the leak source that leaks of valve owing to take double-screw bolt to connect; (2) three parts in about this structure valve body is divided into, in the valve course of working, the inner and outer surface of left center right valve body and two ends all need processing, procedure complexity; (3) owing to adopt double-screw bolt to connect, increase the usefulness material and the weight of valve, improved the fabricating cost of valve.
Be illustrated in figure 3 as the full side welded ball valve of prior art, Fig. 4 is the B position partial view of Fig. 3; It comprises valve body, spheroid 1; Wherein valve body is made up of middle valve body 2, left valve barrel 4 and right valve barrel 3; In between valve body 2 and left valve barrel 4, the right valve barrel 3 by about two weld seams 8 weld together; Middle valve body 2 is provided with valve rod base 6, and valve rod base 6 is provided with valve rod 5; Valve rod 5 and spheroid 1 connect; Be provided with bracing ring 10 between valve body and the spheroid 1, bracing ring 10 is embedded with O type circle 12 and fire-protection ring 13 with the valve body contacting point, and bracing ring 10 is provided with seal ring 11 with spheroid 1 contacting point.
The all-welded ball valve of the prior art, its valve body are divided into left and right sides valve body and middle valve body, and two weld seams and middle valve body connected about left and right sides valve body passed through.Defective on this structure technology is: the weld seam of (1) this welded structure ball valve is from the bracing ring close together, and the high temperature that produces during welding easily makes seal ring and O type circle produce distortion, causes valves leakage; (2) welding makes the axial and radial deformation that valve body produces, and makes bracing ring stuck easily, causes valves leakage; (3) valve body divide for about in three parts, in the valve course of working, the inner and outer surface of left center right valve body and two ends all need processing, the procedure complexity, more with material, quality is heavier.
Summary of the invention
The utility model is in order to solve unreasonable, the technical problems such as leakage point is many, weight is big, machining period is long of prior art ball-valve structure, and a kind of simple in structure, leakage point is few, machining period is short, combination property is higher single-side welded ball valve is provided.
The utility model is for achieving the above object, and the technological scheme that is adopted provides a kind of single-side welded ball valve, comprises valve body and spheroid, and described spheroid is arranged in the valve cavity, has through hole in the middle of the described spheroid; Described valve body is provided with valve rod base, and described valve rod base is provided with valve rod, and described valve rod connects with spheroid; Described valve body comprises left valve barrel and right valve barrel two-part, and described left valve barrel and right valve barrel are connected as a single entity by welding manner.
Further, described weld seam is positioned at the vertical neutral position of valve body.
The utility model compared with prior art, its effect is actively and significantly.In the utility model, the valve body structure that prior art is made up of left center right three parts is improved to left and right sides valve body structure dimerous; Left and right sides valve body two-part are welded as a whole in the vertical neutral position of valve body.Its beneficial effect is: (1) is owing to prior art left center right three part valve body structures are improved for left and right sides two-part, and is rational in infrastructure, aesthetic in appearance, reduced the valve materials, makes the valve manufacture cost reduce, and weight also greatly reduces; In course of working, only, also simplified manufacturing process simultaneously with two end faces of processing left and right sides valve body.(2) because left and right sides valve body is welded as a whole in the vertical neutral position of valve body, and welding seam distance seal ring and O type circle are far away, the high temperature that produces in the welding process is less to O type circle, seal ring influence; Because welding causes the valve body distortion also limited to the influence of bracing ring.(3) this all-welded valve body structure has replaced bolt connection mode, has reduced the outer leak source of valve body, has improved the performance of valve.
Description of drawings
Fig. 1 is a prior art double-screw bolt hitch ball valve arrangement schematic representation;
Fig. 2 is the A position partial view that Fig. 1 prior art double-screw bolt connects ball valve;
Fig. 3 is a prior art all-welded ball valve structural representation;
Fig. 4 is the B position partial view of Fig. 3 prior art all-welded ball valve;
Fig. 5 is a single-side welded ball valve structural representation of the present utility model;
Fig. 6 is the C position partial view of Fig. 5 the utility model single-side welded ball valve.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
The ball valve of the double-screw bolt connecting structure of prior art as shown in Figure 1 and Figure 2, it comprises valve body and spheroid 1; Wherein valve body is made up of middle valve body 2, left valve barrel 4 and right valve barrel 3; Be linked together by double-screw bolt 7 respectively between middle valve body 2 and left valve barrel 4, the right valve barrel 3; Middle valve body 2 is provided with valve rod base 6, and valve rod base 6 is provided with valve rod 5, and valve rod 5 and spheroid 1 connect; Be provided with bracing ring 10 between valve body and the spheroid 1, bracing ring 10 is embedded with O type circle 12 and fire-protection ring 13 with the valve body contacting point, and bracing ring 10 is provided with seal ring 11 with spheroid 1 contacting point.
Be the all-welded ball valve of prior art as shown in Figure 3, Figure 4, it comprises valve body, spheroid 1; Wherein valve body is made up of middle valve body 2, left valve barrel 4 and right valve barrel 3; In between valve body 2 and left valve barrel 4, the right valve barrel 3 by about two weld seams 8 weld together; Middle valve body 2 is provided with valve rod base 6, and valve rod base 6 is provided with valve rod 5; Valve rod 5 and spheroid 1 connect; Be provided with bracing ring 10 between valve body and the spheroid 1, bracing ring 10 is embedded with O type circle 12 and fire-protection ring 13 with the valve body contacting point, and bracing ring 10 is provided with seal ring 11 with spheroid 1 contacting point.
As shown in Figure 4, in this all-welded ball valve structure, two weld seams 8 are from bracing ring 10 close together, and the high temperature that produces when welding so easily makes seal ring 11 and O type circle 12 produce distortion; Weld seam 8 makes the axial and radial deformation that valve body produces simultaneously, also makes bracing ring 10 stuck easily, causes valves leakage.
Be side welded ball valve of the present utility model as shown in Figure 5, it comprises valve body and spheroid 21, and spheroid 21 is arranged in the valve cavity, and has through hole in the middle of the spheroid 21; Valve rod base 26 is fixed on valve body two ends up and down, and valve rod 25 is arranged on the valve rod base 26 and with spheroid 21 and connects; Valve body comprises left valve barrel 23 and right valve barrel 22 two-part, and left valve barrel 23 and right valve barrel 22 are welded as a whole by weld seam 9 in the vertical neutral position of valve body.
As shown in Figure 6, be provided with bracing ring 10 between valve body and the spheroid 21, bracing ring 10 is embedded with O type circle 12 and fire-protection ring 13 with the valve body contacting point, and bracing ring 10 is provided with seal ring 11 with spheroid 21 contacting points.
As shown in Figure 5, weld seam 9 is positioned at the vertical neutral position of valve body, and is far away apart from bracing ring 10 distances, so the high temperature that produces in the welding process is less to O type circle, seal ring influence; And because welding causes the distortion of valve body also limited to the influence of bracing ring.
As shown in Figure 5, the utility model has replaced left center right of the prior art valve body structure by left and right sides valve body; The core structure of existing valve body is improved to the circular arc streamline structure; Prior art left center right valve body inner and outer surface and two ends all need process to be improved to only needs processing valve body two ends, the left and right sides; Make valve body structure more reasonable, aesthetic in appearance generous, production process reduces, and has reduced valve weight and cost.
Claims (2)
1. a single-side welded ball valve comprises valve body and spheroid, and described spheroid is arranged in the valve cavity, has through hole in the middle of the described spheroid; Described valve body is provided with valve rod base, and described valve rod base is provided with valve rod, and described valve rod connects with spheroid; It is characterized in that: described valve body comprises left valve barrel and right valve barrel two-part, and described left valve barrel and right valve barrel are connected as a single entity by welding manner.
2. a kind of single-side welded ball valve as claimed in claim 1 is characterized in that: described weld seam is positioned at the vertical neutral position of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920070317U CN201386815Y (en) | 2009-04-14 | 2009-04-14 | Single-welding type ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920070317U CN201386815Y (en) | 2009-04-14 | 2009-04-14 | Single-welding type ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386815Y true CN201386815Y (en) | 2010-01-20 |
Family
ID=41579348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920070317U Expired - Lifetime CN201386815Y (en) | 2009-04-14 | 2009-04-14 | Single-welding type ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386815Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338229A (en) * | 2010-07-16 | 2012-02-01 | 天特阀门集团有限责任公司 | Ball valve seat and manufacturing method thereof |
| CN103148235A (en) * | 2013-03-15 | 2013-06-12 | 五洲阀门有限公司 | Single-welding-seam spherical all-welded ball valve |
-
2009
- 2009-04-14 CN CN200920070317U patent/CN201386815Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338229A (en) * | 2010-07-16 | 2012-02-01 | 天特阀门集团有限责任公司 | Ball valve seat and manufacturing method thereof |
| CN102338229B (en) * | 2010-07-16 | 2014-12-03 | 天特阀门集团有限责任公司 | Ball valve seat and manufacturing method thereof |
| CN103148235A (en) * | 2013-03-15 | 2013-06-12 | 五洲阀门有限公司 | Single-welding-seam spherical all-welded ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151022 Address after: Huancheng Road high-tech economic zone 224700 Jiangsu province Yancheng City Jianhu County No. 1 Patentee after: Jiangsu Aowei Machinery Co., Ltd. Address before: 201802 Shanghai City, Jiading District Nanxiang Town Xiang River Road No. 963 Patentee before: Koko Valve Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100120 |
|
| CX01 | Expiry of patent term |