CN201661718U - Laminar internal thread ball valve - Google Patents
Laminar internal thread ball valve Download PDFInfo
- Publication number
- CN201661718U CN201661718U CN2010201700766U CN201020170076U CN201661718U CN 201661718 U CN201661718 U CN 201661718U CN 2010201700766 U CN2010201700766 U CN 2010201700766U CN 201020170076 U CN201020170076 U CN 201020170076U CN 201661718 U CN201661718 U CN 201661718U
- Authority
- CN
- China
- Prior art keywords
- valve seat
- ball valve
- internal thread
- spheroid spool
- valve
- 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 laminar internal thread ball valve, which comprises a valve body (1), a ball valve core (2), valve seats (3), a ball valve core control part and two valve seat limiting devices, wherein the ball valve core control part controls the action of the ball valve core, and the valve seat limiting devices arranged on the valve seats (3) are far away from one end of the ball valve core (2). A preset force bias pressure device is arranged between at least one of the valve seats (3) and the corresponding valve seat limiting device. The compressed bias pressure device arranged inside the laminar internal thread ball valve can be automatically abutted to the valve seats to draw close towards the position of the ball valve core when a gap exists between each valve seat and the ball valve core because of loosing or ageing, thereby the possibly generated gap is eliminated to prevent the ball valve from seepage.
Description
Technical field
The utility model relates to a kind of ball valve, specifically, is a kind of single piece type internal thread ball valve.
Background technique
The faucet body of ball valve is a spheroid, and the axis of spheroid is provided with manhole or passage.The flow direction that ball valve is mainly used to make cut-out, distributes and change medium in pipeline, it only needs to use very little moment of rotation just can close tightly pipeline the operation that spheroid is rotated 90 degree.The ball valve optimum is made switch, cut-off valve uses.Chinese patent literature CN2349411Y has proposed a kind of single piece type internal thread ball valve.This single piece type internal thread ball valve still have tapped valve body, valve seat, spheroid spool, with the valve rod and the handle thereof of spheroid spool interlock, valve rod mounting hole place, valve body middle part is the boss shape, valve rod is installed hole wall and is set up O type circle.Prior art increases axial thickness and sets up the O RunddichtringO and can reach desirable sealing effect between this valve seal key position valve rod and valve body, but also there is following shortcoming: after this model utility is used the long period, formation abrasion loosening and valve seat between spheroid spool and the valve seat all can cause the generation in gap between spheroid spool and the valve seat, thereby cause ball valve place seepage, pipeline is not closed completely, and adjustment volution of the prior art can not be adjusted automatically to the gap that forms, therefore, usually cause the ball valve place to reveal, need staff's running check and tighten the adjustment volution, use very inconvenient.
The model utility content
For this reason, technical problem to be solved in the utility model is that internal thread ball valve of the prior art is in long-term using process, the problem that forms the gap between spheroid spool and the valve seat and can not eliminate automatically provides a kind of internal thread ball valve that can eliminate automatically the gap that forms between spheroid spool and the valve seat in long-term using process.
For solving the problems of the technologies described above, a kind of single piece type internal thread ball valve of the present utility model comprises
Valve body forms cavity on the described valve body;
The spheroid spool forms passage on the described spheroid spool;
Valve seat form the arc inner wall that suitable described spheroid spool rotates on the inwall of described valve seat within it, and the contacting point of described arc inner wall and described spheroid spool forms contact seal; Described valve seat is provided with two, is oppositely arranged in the described cavity, and described spheroid spool is arranged between the two described valve seats;
Spheroid spool control member, described spheroid spool control member is realized the described channel alignment on the described spheroid spool or the described cavity that staggers by the action of controlling described spheroid spool, thereby realizes closing or opening described cavity;
Valve seat limit stoper, described valve seat limit stoper are arranged on the end away from described spheroid spool of described valve seat, and described valve seat limit stoper is provided with two;
Be provided with the biased member of pre set force between at least one described valve seat and the corresponding described valve seat limit stoper.
Above-mentioned single piece type internal thread ball valve, one described valve seat limit stoper is the boss that is molded on the described cavity, another described valve seat limit stoper forms the internal thread that is used with described adjustment volution for adjusting volution on the inwall of the respective end of the residing described cavity of described adjustment volution.
Above-mentioned single piece type internal thread ball valve is provided with pad between described valve seat and the described biased member.
Above-mentioned single piece type internal thread ball valve, described biased member is a spring.
Technique scheme of the present utility model has the following advantages compared to existing technology, 1, in the utility model, be provided with the biased member of pre set force between at least one valve seat and the corresponding valve seat limit stoper, when between valve seat and the spheroid spool because of loosening or aging when having the gap, the biased member of compression can prop up valve seat and draw close towards spheroid spool place, thereby eliminate issuable gap, prevent the ball valve seepage.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is a single piece type internal thread ball valve sectional view of the present utility model.
Reference character is expressed as among the figure: 1-valve body, 2-spheroid spool, 3-valve seat, 4-boss, 5-adjust volution, 6-pad, 7-spring.
Embodiment
As shown in Figure 1, a kind of single piece type internal thread ball valve of present embodiment comprises
Spheroid spool control member, described spheroid spool control member is realized the described channel alignment on the described spheroid spool 2 or the described cavity that staggers by the action of controlling described spheroid spool 2, thereby realizes closing or opening described cavity;
Valve seat limit stoper, described valve seat limit stoper are arranged on the end away from described spheroid spool 2 of described valve seat 3, and described valve seat limit stoper is provided with two; In the present embodiment, one described valve seat limit stoper is the boss 4 that is molded on the described cavity, another described valve seat limit stoper forms the internal thread that is used with described adjustment volution 5 for adjusting volution 5 on the inwall of the respective end of described adjustment volution 5 residing described cavities.Described adjustment volution 5 and corresponding described valve seat 3 are provided with the biased member of pre set force.Be provided with the biased member of compression between described valve seat 3 and the described valve seat limit stoper, when between described valve seat 3 and the described spheroid spool 2 because of loosening or aging when having the gap, the biased member of compression can prop up described valve seat 3 and draw close towards described spheroid spool 2 places, thereby eliminate issuable gap, prevent the ball valve seepage.In the present embodiment, described biased member is a spring 7.Also be provided with pad 6 between described valve seat 3 and the described biased member.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (4)
1. a single piece type internal thread ball valve comprises
Valve body (1), described valve body forms cavity on (1);
Spheroid spool (2) forms passage on the described spheroid spool (2);
Valve seat (3) form the arc inner wall that suitable described spheroid spool (2) rotates on the inwall of described valve seat (3) within it, and the contacting point of described arc inner wall and described spheroid spool (2) forms contact seal; Described valve seat (3) is provided with two, is oppositely arranged in the described cavity, and described spheroid spool (2) is arranged between the two described valve seats (3);
Spheroid spool control member, described spheroid spool control member is realized the described channel alignment on the described spheroid spool (2) or the described cavity that staggers by the action of the described spheroid spool of control (2), thereby realizes closing or opening described cavity;
Valve seat limit stoper, described valve seat limit stoper are arranged on the end away from described spheroid spool (2) of described valve seat (3), and described valve seat limit stoper is provided with two;
It is characterized in that:
Be provided with the biased member of pre set force between at least one described valve seat (3) and the corresponding described valve seat limit stoper.
2. single piece type internal thread ball valve according to claim 1, it is characterized in that: a described valve seat limit stoper is the boss (4) that is molded on the described cavity, another described valve seat limit stoper forms the internal thread that is used with described adjustment volution (5) for adjusting volution (5) on the inwall of the respective end of the residing described cavity of described adjustment volution (5).
3. single piece type internal thread ball valve according to claim 1 and 2 is characterized in that: be provided with pad (6) between described valve seat (3) and the described biased member.
4. single piece type internal thread ball valve according to claim 3 is characterized in that: described biased member is spring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201700766U CN201661718U (en) | 2010-04-26 | 2010-04-26 | Laminar internal thread ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201700766U CN201661718U (en) | 2010-04-26 | 2010-04-26 | Laminar internal thread ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201661718U true CN201661718U (en) | 2010-12-01 |
Family
ID=43232133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201700766U Expired - Fee Related CN201661718U (en) | 2010-04-26 | 2010-04-26 | Laminar internal thread ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201661718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032597A (en) * | 2011-09-30 | 2013-04-10 | 上海纽京工业设备有限公司 | Special ultrahigh pressure cone valve for coal slurry |
| CN104197036A (en) * | 2014-08-18 | 2014-12-10 | 洪元生 | Ball valve capable of performing safe relief |
-
2010
- 2010-04-26 CN CN2010201700766U patent/CN201661718U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032597A (en) * | 2011-09-30 | 2013-04-10 | 上海纽京工业设备有限公司 | Special ultrahigh pressure cone valve for coal slurry |
| CN104197036A (en) * | 2014-08-18 | 2014-12-10 | 洪元生 | Ball valve capable of performing safe relief |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20120426 |