CN203926862U - Plunger valve - Google Patents
Plunger valve Download PDFInfo
- Publication number
- CN203926862U CN203926862U CN201420351092.3U CN201420351092U CN203926862U CN 203926862 U CN203926862 U CN 203926862U CN 201420351092 U CN201420351092 U CN 201420351092U CN 203926862 U CN203926862 U CN 203926862U
- Authority
- CN
- China
- Prior art keywords
- plunger
- valve body
- valve
- hole
- guide rod
- 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 discloses a kind of plunger valve, comprise the valve body (1) being provided with for the runner (15) of medium axial flow, in described runner (15), be radially provided with circular cavity (16), described valve body (1) peripheral wall is provided with circular through hole (17), described through hole (17) connects and coaxial line with cavity (16), described through hole (17) and the interior sliding fit of cavity (16) are useful on the plunger (2) of cut-off or conducting runner (15), described plunger (2) bottom is provided with seal arrangement, described valve body (1) bottom is axially provided with through plunger (2) bottom along plunger (2), the guide rod (4) of seal arrangement and valve body (1) bottom, described guide rod (4) upper end is provided with baffle plate (5), between described baffle plate (5) lower surface and plunger (2) bottom, be provided with stage clip (6).Provide that a kind of valve body structure and production technology are simple, the stable plunger valve of valve rod state of rest lower plunger valve arrangement.
Description
Technical field
The utility model relates to a kind of plunger valve.
Background technique
Plunger valve is a kind of common mechanical parts, and it comprises that valve body, valve gap, valve rod, plunger, hole frame and actuate valve stem rotate to drive plunger to pump in the middle of the frame of hole and reach the handwheel of opening and closing plunger valve.In plunger valve, plunger and seal ring interannular adopt interference fit, by regulating the flange bolt in gland, lateral force and valve body mesopore face and the sealing of plunger excircle that seal ring compression is produced, thereby ensure the sealing of plunger valve, prevent that media flow from leaking, can realize the rapid opening and closing of plunger valve.Closing by a stainless steel plunger, upper and lower two elastic seal rings and a metal bulkhead of plunger valve forms, and sealing effect is to be reached by closely cooperating by plunger and seal ring.When opening and closing plunger valve, plunger slowly moves in two seal rings, and while closing, plunger inserts lower seal, blocks runner; When unlatching, although plunger departs from lower seal, but still ensconce in upper seal ring, keep being isolated from the outside, unlikely leakage.
Above-mentioned valve mechanism has the following disadvantages, in order to realize the opening and closing plunger valve of plunger, the design of valve body need to by the influent stream road of media flow with go out runner design and become Curved, in two seal rings, slowly to move to meet that plunger moves at vertical direction, this can cause valve body structure complexity, and manufacture difficulty strengthens; Valve rod can cause the screw-thread fit of plunger excircle and valve body to occur loosening in long using process, this can cause plunger to remain static down and be moved vertically because the impact of media flow generation drives plunger, to cause the stability of plunger state of rest lower plunger valve arrangement.
Model utility content
The technical problems to be solved in the utility model is, overcomes existing technological deficiency, provides that a kind of valve body structure and production technology are simple, the stable plunger valve of valve rod state of rest lower plunger valve arrangement.
Technical solution of the present utility model is, provide a kind of plunger valve with following structure: be provided with the valve body for the runner of medium axial flow, in described runner, be radially provided with circular cavity, described valve body peripheral wall is provided with circular through hole, described through hole and cavity connect and coaxial line, in described through hole and cavity, sliding fit is useful on the plunger of cut-off or conducting runner, the valve body inner peripheral wall of described through hole is provided with internal thread, described plunger outer circle wall is provided with outside thread, described plunger base is provided with seal arrangement, described plunger, inside offer chamber, described valve body bottom is along plunger axis to being provided with through plunger base, the guide rod of seal arrangement and valve body bottom, described guide rod upper end is provided with baffle plate, between described baffle plate lower surface and plunger base, be provided with stage clip.
Adopt after above structure, compared with prior art, the utility model is simplified to a circular cavity by valve body for the cavity of stem movement to a kind of plunger valve of the utility model, has avoided the cavity in valve body to be designed to forniciform structure.When simplifying valve body, also simplify the processing technology that valve body is produced.The utility model only need arrange a circular cavity in valve body can supply plunger work, to realize the function of cut-off or conducting runner.Under plunger state of rest, the utility model can give plunger certain active force by the stage clip being provided with between baffle plate lower surface and plunger base, thereby ensures can not affect because of thread looseness valve body structure stability between plunger and valve body.In sum, the utlity model has that valve body structure and production technology are simple, the stable advantage of valve body state of rest lower plunger valve arrangement.
Preferred as one of the present utility model, described guide rod upper end is provided with the First terrace for baffle plate location, and described guide rod lower end is provided with the bulge loop that is positioned at valve body bottom for guide rod.Can make the lower end surface of baffle plate be close to First terrace upper surface by First terrace, such means of fixation is more convenient, and solid and reliable; Can realize the operation of quick mounting guide rod by bulge loop, when guide rod inserts valve body lower portion vertically, can directly realize location by bulge loop, make the assembling of plunger valve entirety and dismantle more convenient.
As a kind of improvement of the present utility model, described baffle plate lower surface is provided with the second step face for stage clip location, and described plunger base is provided with the 3rd step surface for stage clip location.In the process moving up and down at plunger, can make stage clip that play can not occur in chamber by second step face and the 3rd step surface, thereby make plunger valve overall structure compacter reliable.
As a kind of improvement of the present utility model, described plunger top be provided with can with the removable end cap being connected of plunger.End cap can play dustproof, and the effect of waterproof can prevent that the structure of plunger cavity chamber is not subject to the impact of external environment condition, thereby extends the working life of plunger.
As a kind of improvement of the present utility model, described seal arrangement is sealing gasket.In the time that plunger base is close to cavity bottom, sealing gasket can prevent that medium from flowing through from the gap of plunger and cavity bottom.
As a kind of improvement of the present utility model, described plunger upper end is provided with the handle for screwing plunger.Described handle can easy-to-operat personnel quickly and easily rotary plunger with cut-off or conducting runner.
As a kind of improvement of the present utility model, in described through hole, be provided with seal ring.Described seal ring can prevent that medium from flowing out from the thread pitch between plunger and valve body, thereby improves the sealing of plunger valve entirety.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model plunger valve.
Fig. 2 is the sectional view under the utility model plunger valve opening state.
Fig. 3 is the structural representation of directional post in Fig. 1.
Fig. 4 is the structural representation of the utility model plunger valve plunger, directional post and baffle plate.
Fig. 5 is the attached body plan view of the utility model plunger valve.
Shown in figure: 1, valve body, 2, plunger, 3, chamber, 4, directional post, 5, baffle plate, 6, stage clip, 7, handwheel, 8, sealing gasket, 9, nut, 10, First terrace, 11, bulge loop, 12, end cap, 13, second step face, 14, the 3rd step surface, 15, runner, 16, cavity, 17, through hole, 18, seal ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Working principle: be provided with cavity 16 in the utility model plunger valve, when MEDIA FLOW can be by mobile the cut-off and conducting runner 15 up and down of plunger 2 during through cavity 16.In the time that plunger 2 moves up vertically, gap is left in the bottom of the lower surface of plunger 2 and cavity 16, the medium runner 15 of can flowing through from the gap of the lower surface of plunger 2 and cavity 16 bottoms, and runner 15 conductings, as shown in Figure 2; In the time that plunger 2 moves down vertically, plunger 2 lower surfaces and cavity 16 bottoms are close to, and medium can not 15 pass through from flowing, thereby runner 15 ends, as shown in Figure 1.
As shown in the figure, the utility model plunger valve comprises the valve body 1 being provided with for the runner 15 of medium axial flow, in described runner 15, be radially provided with circular cavity 16, described valve body 1 peripheral wall is provided with circular through hole 17, described through hole 17 connects and coaxial line with cavity 16, described through hole 17 and the interior sliding fit of cavity 16 are useful on the plunger 2 of cut-off or conducting runner 15, valve body 1 inner peripheral wall at described through hole 17 places is provided with internal thread, described plunger 2 outer circle walls are provided with outside thread, described plunger 2 bottoms are provided with seal arrangement, in described plunger 2, offer chamber 3, described valve body 1 bottom is axially provided with through plunger 2 bottoms along plunger 2, the guide rod 4 of seal arrangement and valve body 1 bottom, described guide rod 4 upper ends are provided with baffle plate 5, between described baffle plate 5 lower surfaces and plunger 2 bottoms, be provided with stage clip 6.
The utility model moves valve body 1 cavity 16 for plunger 2 is simplified to a circular cavity 16, can avoid that runner 15 is designed to curved shape and move for plunger 2 to form upper and lower cavity, and then avoid the cavity in valve body 1 16 to be designed to forniciform structure.When simplifying valve body 1, also simplify the processing technology that valve body 1 is produced.The utility model only need arrange a circular cavity 16 and can work for plunger 2 valve body 1 is interior, to realize the function of cut-off or conducting runner 15.
Described guide rod 4 upper ends are provided with the First terrace 10 of locating for baffle plate 5, and described guide rod 4 lower ends are provided with the bulge loop 11 that is positioned at valve body 1 bottom for guide rod 4.Can make the lower end surface of baffle plate 5 be close to First terrace 10 upper surfaces by First terrace 10, then carry out fastening, such means of fixation in the upper end of guide rod 4 more convenient screwing with nut 9, and solid and reliable; Can realize the operation of quick mounting guide rod 4 by bulge loop 11, guide rod 4 inserts vertically valve body 1 bottom Shi Ke and directly realizes location by bulge loop 11, and then screw and carry out fasteningly in the lower end of guide rod 4 with nut 9, make the assembling of plunger valve entirety and dismantle more convenient.
Described baffle plate 5 lower surfaces are provided with the second step face 13 of locating for stage clip 6, and described plunger 2 bottoms are provided with the 3rd step surface 14 of locating for stage clip 6.In the process moving up and down at plunger 2, can make the stage clip 6 can be at the interior generation play of chamber 3 by second step face 13 and the 3rd step surface 14, thereby make plunger valve overall structure compacter reliable.
Described plunger 2 tops be provided with can with the removable end cap being connected 12 of plunger 2.End cap 12 can play dustproof, and the effect of waterproof can prevent that the structure of plunger 2 inner cavity chamber 3 is not subject to the impact of external environment condition, thereby extends the working life of plunger 2.
Described seal arrangement is sealing gasket 8.Described sealing gasket 8 is made up of rubber material, and sealing gasket 8 is close to the bottom of plunger 2.
Described plunger 2 upper ends are provided with the handle 7 for screwing plunger 2.Described handle 7 can easy-to-operat personnel quickly and easily rotary plunger 2 with cut-off or conducting runner 15.
In described through hole 17, be provided with seal ring 18.Described seal ring 18 can prevent that medium from flowing out from the thread pitch between plunger 2 and valve body 1, thereby improves the sealing of plunger valve entirety.Described seal ring 18 refers to the female rubber seal of tool, and the internal thread of seal ring 18 can be close to the outside thread of plunger 2 and prevent dielectric leakage with this.
The foregoing is only preferred embodiment of the present utility model, not for limiting protection domain of the present utility model.All within the utility model claim, any amendment of doing, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a plunger valve, comprise the valve body (1) being provided with for the runner (15) of medium axial flow, it is characterized in that: in described runner (15), be radially provided with circular cavity (16), described valve body (1) peripheral wall is provided with circular through hole (17), described through hole (17) connects and coaxial line with cavity (16), described through hole (17) and the interior sliding fit of cavity (16) are useful on the plunger (2) of cut-off or conducting runner (15), valve body (1) inner peripheral wall that described through hole (17) is located is provided with internal thread, described plunger (2) outer circle wall is provided with outside thread, described plunger (2) bottom is provided with seal arrangement, in described plunger (2), offer chamber (3), described valve body (1) bottom is axially provided with through plunger (2) bottom along plunger (2), the guide rod (4) of seal arrangement and valve body (1) bottom, described guide rod (4) upper end is provided with baffle plate (5), between described baffle plate (5) lower surface and plunger (2) bottom, be provided with stage clip (6).
2. plunger valve according to claim 1, it is characterized in that: described guide rod (4) upper end is provided with the First terrace (10) for baffle plate (5) location, described guide rod (4) lower end is provided with the bulge loop (11) that is positioned at valve body (1) bottom for guide rod (4).
3. plunger valve according to claim 1, it is characterized in that: described baffle plate (5) lower surface is provided with the second step face (13) for stage clip (6) location, described plunger (2) bottom is provided with the 3rd step surface (14) for stage clip (6) location.
4. plunger valve according to claim 1, is characterized in that: described plunger (2) top be provided with can with the removable end cap being connected of plunger (2) (12).
5. plunger valve according to claim 1, is characterized in that: described seal arrangement is sealing gasket (8).
6. plunger valve according to claim 1, is characterized in that: described plunger (2) upper end is provided with the handle (7) for screwing plunger (2).
7. plunger valve according to claim 1, is characterized in that: in described through hole (17), be provided with seal ring (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351092.3U CN203926862U (en) | 2014-06-28 | 2014-06-28 | Plunger valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420351092.3U CN203926862U (en) | 2014-06-28 | 2014-06-28 | Plunger valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926862U true CN203926862U (en) | 2014-11-05 |
Family
ID=51822674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420351092.3U Expired - Fee Related CN203926862U (en) | 2014-06-28 | 2014-06-28 | Plunger valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926862U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160251007A1 (en) * | 2015-02-26 | 2016-09-01 | Mando Corporation | Pump for integrated brake system |
-
2014
- 2014-06-28 CN CN201420351092.3U patent/CN203926862U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160251007A1 (en) * | 2015-02-26 | 2016-09-01 | Mando Corporation | Pump for integrated brake system |
| US10486657B2 (en) * | 2015-02-26 | 2019-11-26 | Mando Corporation | Pump for integrated brake system |
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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: 20141105 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |