CN202851993U - Corrugated pipe stop valve - Google Patents
Corrugated pipe stop valve Download PDFInfo
- Publication number
- CN202851993U CN202851993U CN2012205440428U CN201220544042U CN202851993U CN 202851993 U CN202851993 U CN 202851993U CN 2012205440428 U CN2012205440428 U CN 2012205440428U CN 201220544042 U CN201220544042 U CN 201220544042U CN 202851993 U CN202851993 U CN 202851993U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- bellows
- flap
- steel 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 - Lifetime
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Abstract
The utility model discloses a corrugated pipe stop valve which comprises a valve body and a valve rod arranged inside the valve body. The lower end of the valve rod is provided with valve clacks, wherein switch-on and switch-off power is transmitted by the valve clacks in a vertical direction. Bellows are sleeved on a part of the valve rod, wherein the part of the valve rod stretches into the valve body, and the lower ends of the bellows are welded with the valve clacks. Assemble holes are further formed on the valve clacks, and communicated with cavities of the corrugated pipes and ensure that the lower ends of the valve rod are inserted to the assemble holes. Locking holes are formed on the valve rod and stretch along the radial direction of the valve rod. Steel balls and pressure springs are arranged inside the locking holes along the stretching direction of the locking holes in a directly movable and matching mode, wherein outward acting force is exerted on the steel ball by the springs. A locking groove is arranged on the inner walls of the assemble holes, corresponds to the locking holes, and ensures that the steel ball parts are clamped to achieve the movable connection of the valve rod and the valve clacks. When the corrugated pipes are replaced, the valve rod of the bellow stop valve of the structure does not need replacing and the bellows are convenient to replace.
Description
Technical field
The utility model relates to a kind of bellows stop valve, belongs to valve technology field.
Background technique
In the fluid medium delivery pipe of the industrial fields such as chemistry, pharmacy, oil, need the break-make of valve pilot line, owing to the flowing medium in these fields mostly is inflammable, explosive, poisonous or is with active material, strict to the seal request of valve.At present, bellows stop valve has been widely used in these fields owing to have good sealability.
A kind of bellows stop valve is disclosed such as Chinese patent CN102052469A, comprise the valve body with runner, the upper end open place sealing of valve body is equipped with valve gap, be equipped with the lower end at valve gap and stretch into valve rod in the runner, valve rod consists of by hinged upper and lower section, wherein epimere part screw thread spinning is on valve gap, hypomere part up and down guiding is slidedly assemblied on the valve gap, be equipped with for the flap of controlling the runner break-make in the lower end of valve rod, epimere by rotary valve rod partly can drive the hypomere part and moves up and down together with flap like this, and then the break-make of control runner; In order to guarantee the sealing between valve rod and the valve gap, be arranged with bellows in the hypomere part of valve rod, the upper end of bellows moves up and down in the process at valve rod with the bottom surface of valve gap is connected, lower end and the seal ring that is welded on the valve rod are connected, and bellows stretches thereupon.Can be drawn by above content, the position that contacts between valve rod and the valve gap is the position that whole bellows stop valve is revealed easily, and bellows is to prevent the critical component revealed, also be easily damaged parts simultaneously, owing to the bellows lower end can't be disassembled after welding with valve rod, when changing bellows, need to change together with valve rod, and the dismounting of valve rod is inconvenient, makes the replacing of the bellows trouble that also becomes, and has increased maintenance cost.
The model utility content
The purpose of this utility model provides a kind of bellows stop valve that is convenient for changing bellows.
The utility model adopts following technological scheme: a kind of bellows stop valve, comprise valve body and be installed in the interior valve rod of valve body, the lower end of valve rod is provided with the flap that transmits along the vertical direction switching power, the part that stretches in the valve body of valve rod is arranged with bellows, the lower end of described bellows and the welding of described flap, also offer the pilot hole of the lower end insertion that supplies valve rod that is communicated with the inner chamber of described bellows on the described flap, offer the locking hole that radially extends along valve rod on the described valve rod, be equipped with steel ball and steel ball is applied the stage clip of outside active force along its bearing of trend guiding movement in the locking hole, the inwall of described pilot hole is provided with the lock groove to realize that valve rod and flap are flexibly connected that the described steel ball of the confession corresponding with described locking hole partly snaps in.
The hole that the described valve rod of the confession of described valve gap passes has internal thread, and described valve rod has the thread section with the screw-internal thread fit of valve gap, and described lock groove is the annular groove that cooperates with described steel ball rolling when threaded stem rotates.
The lower end surface of described valve rod is sphere.
Adopt the bellows stop valve of said structure, because the lower end of bellows and flap welding form one, the inner chamber of bellows cooperates the Seal cage that stretches into the valve body part that has formed for holding valve rod with the pilot hole of flap, prevented the leakage of valve rod and valve gap contact position, and valve rod and bellows only have the relation of suit, rely on the effect pushing tow steel ball realization valve rod of stage clip and the flexible connection of flap, therefore when changing bellows, valve rod firmly extracted out from the integrative-structure that bellows and flap form get final product, the bellows stop valve of this structure does not need to change valve rod when changing bellows, and changes conveniently.
Description of drawings
Fig. 1 is embodiment's of the present utility model structural representation;
Fig. 2 is the enlarged view of the keying structure position among Fig. 1.
Embodiment
The embodiment of the utility model bellows stop valve: as shown in Figure 1 and Figure 2, comprise the valve body 8 with runner, the upper end open place sealing of valve body 8 is equipped with valve gap 1, be fitted with mobile along the vertical direction lower end on the valve gap 1 and stretch into the interior valve rod 6 of runner of valve body, the lower end of valve rod 6 is equipped with flap 4, thereby flap 4 is realized switching with moving up and down of valve rod 6, the valve inner that stretches at valve rod 6 divides and is arranged with bellows 2, bellows 2 is used for the position that contacts between sealed valve stem and the valve gap, more than part can realize for prior art or by prior art.Improvements of the present utility model are: the upper end of described bellows 2 is weldingly fixed on connecting plate 5 upper and lower ends and flap 4 welding at valve gap 1 lower end position place, on flap 4, also offer the pilot hole of the lower end insertion that supplies valve rod that is communicated with the inner chamber of bellows 2, pilot hole is blind hole, the pilot hole of the inner chamber of bellows 2 and flap 4 has formed a Seal cage that stretches into the valve body part that holds valve rod like this, has prevented the leakage of contact position between valve rod 6 and the valve gap 1.In addition, for flap 4 can be moved up and down along with valve rod 6, between valve rod 6 and flap 4, be provided with keying structure, described keying structure comprises the locking hole that radially extends along valve rod that is opened on the valve rod 6, locking hole is through hole, two steel balls 7 adaptive with locking hole are installed in the locking hole, be top-loaded with stage clip 3 between two steel balls 7, the annular groove corresponding with locking hole when the inwall of flap 4 offers at the bottom surface, hole of the lower end of valve rod 6 and pilot hole apical grafting, when the apical grafting of the bottom surface, hole of the lower end of valve rod 6 and pilot hole, under the effect of stage clip 3, two steel ball 7 parts snap in the annular groove, thereby realize the flexible connection of valve rod and flap, this annular groove is lock groove.
In addition, position, the hole tapped hole that supplies valve rod 6 to pass of valve gap 1, valve rod 6 has the thread section that cooperates with tapped hole, realizes moving up and down of valve rods by screwing valve rod 6, and in the valve rod rotary course, two steel balls 7 are along with valve rod rolls in lock groove together.
The lower end surface of described valve rod 6 is sphere, and when valve rod promotion flap moved down the shutoff runner, sphere can be regulated flap, makes the axis of pilot hole remain consistent with the axis of valve rod, is conducive to the sealing between flap and the runner.
The operating process of above-described embodiment is as follows: rotary valve rod 6 moves down valve rod, and valve rod 6 promotes the runner in flap 4 closed valves 8, bellows 2 elongations this moment; Opposite spin valve rod 6 makes on the valve rod and moves, and valve rod 6 drives flap 4 and moves under the effect of Stop structure, and bellows 2 is got back to original state.
In other embodiments, also can on valve rod, symmetry offer two blind holes, a steel ball and a stage clip are installed respectively in two blind holes, also can realize the flexible connection of valve rod and flap.
Claims (3)
1. bellows stop valve, comprise valve body and be installed in the interior valve rod of valve body, the lower end of valve rod is provided with the flap that transmits along the vertical direction switching power, the part that stretches in the valve body of valve rod is arranged with bellows, it is characterized in that: the lower end of described bellows and the welding of described flap, also offer the pilot hole of the lower end insertion that supplies valve rod that is communicated with the inner chamber of described bellows on the described flap, offer the locking hole that radially extends along valve rod on the described valve rod, be equipped with steel ball and steel ball is applied the stage clip of outside active force along its bearing of trend guiding movement in the locking hole, the inwall of described pilot hole is provided with the lock groove to realize that valve rod and flap are flexibly connected that the described steel ball of the confession corresponding with described locking hole partly snaps in.
2. bellows stop valve according to claim 1, it is characterized in that: the hole that the described valve rod of the confession of described valve gap passes has internal thread, described valve rod has the thread section with the screw-internal thread fit of valve gap, and described lock groove is the annular groove that cooperates with described steel ball rolling when threaded stem rotates.
3. bellows stop valve according to claim 1, it is characterized in that: the lower end surface of described valve rod is sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205440428U CN202851993U (en) | 2012-10-23 | 2012-10-23 | Corrugated pipe stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205440428U CN202851993U (en) | 2012-10-23 | 2012-10-23 | Corrugated pipe stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851993U true CN202851993U (en) | 2013-04-03 |
Family
ID=47983198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205440428U Expired - Lifetime CN202851993U (en) | 2012-10-23 | 2012-10-23 | Corrugated pipe stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851993U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867734A (en) * | 2014-03-24 | 2014-06-18 | 浙江理工大学 | Check valve with elastic spiral clamping sleeve |
| CN105526421A (en) * | 2016-03-01 | 2016-04-27 | 马鞍山市润启新材料科技有限公司 | Valve rod |
| CN110056708A (en) * | 2019-03-04 | 2019-07-26 | 合肥通用机械研究院有限公司 | The dedicated bellows valve bar assembly of high frequency quck-opening valve |
-
2012
- 2012-10-23 CN CN2012205440428U patent/CN202851993U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867734A (en) * | 2014-03-24 | 2014-06-18 | 浙江理工大学 | Check valve with elastic spiral clamping sleeve |
| CN103867734B (en) * | 2014-03-24 | 2016-03-09 | 浙江理工大学 | With the stop valve of elastic helix cutting ferrule |
| CN105526421A (en) * | 2016-03-01 | 2016-04-27 | 马鞍山市润启新材料科技有限公司 | Valve rod |
| CN110056708A (en) * | 2019-03-04 | 2019-07-26 | 合肥通用机械研究院有限公司 | The dedicated bellows valve bar assembly of high frequency quck-opening valve |
| CN110056708B (en) * | 2019-03-04 | 2020-07-07 | 合肥通用机械研究院有限公司 | Special corrugated pipe valve rod assembly for high-frequency quick-opening valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
|
| CX01 | Expiry of patent term |