CN205745621U - Electrical valve movable sealing structure and electrical valve thereof - Google Patents
Electrical valve movable sealing structure and electrical valve thereof Download PDFInfo
- Publication number
- CN205745621U CN205745621U CN201620413198.0U CN201620413198U CN205745621U CN 205745621 U CN205745621 U CN 205745621U CN 201620413198 U CN201620413198 U CN 201620413198U CN 205745621 U CN205745621 U CN 205745621U
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- valve
- sealing gasket
- core assembly
- elastic sealing
- partition means
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Abstract
The open electrical valve movable sealing structure of this utility model, including valve body, fixed partition means, core assembly and elastic sealing gasket.Valve body has entrance, outlet and valve pocket；Fixed partition means is arranged in valve pocket, is divided into by valve pocket and lays respectively at the electric chamber above and below fixed partition means and fluid cavity；Valve port it is provided with in fluid cavity.Core assembly can move between open position and closed position, and core assembly includes valve rod.Elastic sealing gasket is arranged in fluid cavity；Valve rod passes fixed partition means and the central through hole of elastic sealing gasket.The outer peripheral edge of elastic sealing gasket and inner peripheral are individually fixed in inside and the valve rod of fluid cavity, and when core assembly moves between open position and closed position, the superjacent air space of elastic sealing gasket seals against each other with underlying space.This utility model is also disclosed the electrical valve including above-mentioned movable sealing structure.This utility model can realize reliable movable sealing between the central through hole of the fixed partition means of electrical valve and valve rod.
Description
Technical field
This utility model relates to electrical valve movable sealing structure and electrical valve thereof.
Background technology
Traditional sealing means includes the modes such as O sealing, sealing strip sealing, sealing gasket sealing, gluing sealing.O seals to seal to be usually with sealing strip and designs corresponding groove on some face needing sealing, O or sealing strip is disposed therein, and relies on the elastic deformation of O or sealing strip to ensure to seal.The application of O sealing means and sealing strip sealing means is the most universal, but owing to needs design specific groove structure, causes both sealing means to there is certain difficulty when being applied to the narrow and small component of machine of bulk；Additionally, both sealing means there is also the leakage hidden danger under the conditions of movable sealing after sealing part abrasion.Fig. 1 shows that existing O seals structure and is applied to the schematic diagram of movable sealing occasion.As shown in Figure 1, O 91 is embedded in the annular groove 921 of axle 92, and axle 92 moves back and forth along the double-head arrow direction shown in Fig. 1 in housing 93, and O 91 is also followed axle 92 and moved together, time one length is easily caused O 91 and weares and teares, thus causes the fluid 94 within housing 93 to reveal.Sealing gasket seals two faces compression rubber blankets, composite material gasket or the pad with metallic framework sealed by needs and realizes isolating seal, is typically only applicable to static seal.Gluing seals and is generally used for static seal, and is restricted on application scenario because there is pollution hidden trouble.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of movable sealing structure that can realize reliable movable sealing between the central through hole of the fixed partition means of electrical valve and valve rod.
Further technical problem to be solved in the utility model is to provide a kind of electrical valve using this movable sealing structure.
For solving above-mentioned technical problem, this utility model embodiment provides electrical valve movable sealing structure, including valve body, fixed partition means and core assembly；Valve body has entrance, outlet and valve pocket；Fixed partition means is arranged in valve pocket, valve pocket is divided into the electric chamber being positioned at above this fixed partition means and is positioned at the fluid cavity below this fixed partition means；It is provided with the valve port of entrance Yu outlet in fluid cavity；Fixed partition means has central through hole；Core assembly can between open position and closed position moving axially along valve body, when core assembly is in the open position, valve port is unlocked, when core assembly is in the closed position, core assembly by valve port close；Core assembly includes valve rod；Wherein, electrical valve movable sealing structure also includes elastic sealing gasket, and elastic sealing gasket is arranged in fluid cavity, and is positioned at the lower section of the central through hole of fixed partition means；Elastic sealing gasket has central through hole；Valve rod passes fixed partition means and the central through hole of elastic sealing gasket, and the top and bottom of valve rod are respectively protruding in electric chamber and fluid cavity；The outer peripheral edge of elastic sealing gasket and inner peripheral are individually fixed in inside and the valve rod of fluid cavity, and when core assembly moves between open position and closed position, the inner peripheral of elastic sealing gasket is followed valve rod and is moved together, and the space below the space above elastic sealing gasket and elastic sealing gasket seals against each other.
The invention also discloses a kind of electrical valve, this electrical valve includes above-mentioned electrical valve movable sealing structure.
This utility model is at least up to one of following beneficial effect:
The movable sealing structure of this utility model embodiment is provided with elastic sealing gasket below the central through hole of the fixed partition means of electrical valve, when core assembly moves between open position and closed position, space below space above elastic sealing gasket and elastic sealing gasket remains and seals against each other, therefore, it is possible to stop the space between the liquid central through hole from fixed partition means and valve rod to enter into the electric chamber of electrical valve.When core assembly moves, elastic sealing gasket can occur elastic deformation therewith, but elastic sealing gasket will not produce any fricting movement with core assembly in motor process, so there is not the wear problem of elastic sealing gasket, thus achieve more structurally sound movable sealing between central through hole and the valve rod of the fixed partition means of electrical valve.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, in describing embodiment below, the required accompanying drawing used is briefly introduced, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, from the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 shows that existing O seals structure and is applied to the schematic diagram of movable sealing occasion；
Fig. 2 shows the cross-sectional view of the electrical valve movable sealing structure according to this utility model one embodiment, and wherein, core assembly is in the open position；
Fig. 3 shows the close-up schematic view of Fig. 2；
Fig. 4 shows the cross-sectional view of the electrical valve movable sealing structure according to this utility model one embodiment, and wherein, core assembly is in the closed position；
Fig. 5 is the cross-sectional view that the valve disc in Fig. 2 makes after improving further；
Fig. 6 shows the generalized section of the elastic sealing gasket according to this utility model one embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is made and further illustrating.
Fig. 2 shows the cross-sectional view of the electrical valve movable sealing structure according to this utility model one embodiment, and wherein core assembly is in the open position；Fig. 3 shows the close-up schematic view of Fig. 2；Fig. 4 shows the cross-sectional view of the electrical valve movable sealing structure according to this utility model one embodiment, and wherein core assembly is in the closed position.Refer to Fig. 2 to Fig. 4, according to the electrical valve movable sealing structure of this utility model one embodiment, including valve body 1, fixed partition means 2, core assembly and elastic sealing gasket 4.
Valve body 1 has entrance 11, outlet 12 and valve pocket 10.Fixed partition means 2 is arranged in valve pocket 10, valve pocket 10 is divided into the electric chamber 10a being positioned at above fixed partition means 2 and is positioned at the fluid cavity 10b below fixed partition means 2.The valve port 13 connected by entrance 11 it is provided with outlet 12 in fluid cavity 10b.Shown in Fig. 2 and Fig. 4 point to valve port 13 represent the liquid flow direction in fluid cavity 10b to upward arrow.Fixed partition means 2 has central through hole 20.In the embodiment shown in Fig. 2 to Fig. 4, fixed partition means 2 is independent parts, it will be understood by those skilled in the art that fixed partition means 2 can also be one-body molded with valve body 1.
Core assembly can between open position and closed position moving axially along valve body 1, when core assembly is in the open position, valve port 13 is unlocked, flow into entrance 11 liquid can enter into outlet 12；When core assembly is in the closed position, valve port 13 is closed by core assembly, thus stops the liquid in entrance 11 to flow to outlet 12.
In the embodiment shown in Fig. 2 to Fig. 4, core assembly includes valve rod 31 and valve disc 32.Valve disc 32 is fixed on the lower end of valve rod 31, and the bottom surface of valve disc 32 is provided with cannelure 33, is embedded with sealing ring 81 in cannelure 33, and sealing ring 81 partly protrudes from the bottom surface of valve disc 32.Valve port 13 be provided around sealing surface 14.As shown in Figure 4, when core assembly is in the closed position, sealing ring 81 is conflicted sealing surface 14, to realize the closedown to valve port 13.In other embodiments, it is possible to be not provided with valve disc 32, and the direct close port in lower end 13 being dependent on valve rod 31.
Fig. 5 is the cross-sectional view that the valve disc in Fig. 2 makes after improving further.Cannelure 33 in Fig. 2 is U-type groove, and U-type groove can cause sealing ring 81 to there is the risk dropped when bearing dynamic fluid scouring.And in another embodiment, as it is shown in figure 5, the cannelure being arranged on valve disc 32 bottom surface can be annular dovetail slot 33a, sealing ring 81 is embedded in this annular dovetail slot 33a, and partly protrude from the bottom surface of valve disc 32.Owing to the A/F L1 of annular dovetail slot 33a is less than its bottom width L2, therefore can prevent sealing ring 81 from dropping in annular dovetail slot 33a when bearing dynamic fluid scouring.
Elastic sealing gasket 4 is arranged in fluid cavity 10b, and is positioned at the lower section of the central through hole 20 of fixed partition means 2.Elastic sealing gasket 4 has central through hole 40.Valve rod 31 passes central through hole 20 and the central through hole 40 of elastic sealing gasket 4 of fixed partition means 2, and the top and bottom of valve rod 31 are respectively protruding in electric chamber 10a and fluid cavity 10b.
The outer peripheral edge of elastic sealing gasket 4 and inner peripheral are individually fixed in inside and the valve rod 31 of fluid cavity 10b, and when core assembly moves between open position and closed position, space below space above elastic sealing gasket 4 and elastic sealing gasket 4 seals against each other, it is thus possible to stop liquid space below elastic sealing gasket 4 to enter into the space above elastic sealing gasket 4, and then entered into by the space between central through hole 20 and the valve rod 31 of fixed partition means 2 in the electric chamber 10a of electrical valve.When core assembly moves, the outer peripheral edge of elastic sealing gasket 4 maintains static, the inner peripheral of elastic sealing gasket 4 can be followed valve rod 31 and be moved together, so that there is elastic deformation in elastic sealing gasket 4, but elastic sealing gasket 4 will not produce any fricting movement with core assembly in motor process, so there is not the wear problem of elastic sealing gasket, thus achieve more structurally sound movable sealing between central through hole 20 and the valve rod of the fixed partition means 2 of electrical valve.The material of elastic sealing gasket 4 can use rubber, but is not limited to this.
Specifically, the outer peripheral edge of elastic sealing gasket 4 is securable to fixed partition means 2 or the cavity wall of fluid cavity 10b, it is also possible to being fixed on other parts being arranged in fluid cavity 10b, this can make a decision according to the concrete structure of electrical valve.
In the present embodiment, the outer peripheral edge of elastic sealing gasket 4 is fixed in fixed partition means 2.In order to reach to be fixed on the outer peripheral edge of elastic sealing gasket 4 purpose of fixed partition means 2, the electrical valve movable sealing structure of the present embodiment also includes a clasp 5.Fixed partition means 2 includes the skirtboard 25 that substrate 23 and the periphery from substrate 23 downwardly extend, and the central through hole 20 of fixed partition means 2 is opened on substrate 23.The outer peripheral face of clasp 5 and the inner peripheral surface interference fit of skirtboard 25.The outer peripheral edge of elastic sealing gasket 4 is held between the bottom surface of substrate 23 and the upper surface of clasp 5, it is thus possible to make the outer peripheral edge of elastic sealing gasket 4 remain stationary, also achieves the sealing after elastic sealing gasket outer peripheral edge compresses simultaneously.
In the present embodiment, fixed partition means 2 also includes the upwardly extending skirtboard of periphery 26 from substrate 23, in order to realize the sealing between the outer peripheral face of fixed partition means 2 and the sidewall of valve pocket 10, between the outer peripheral face and the sidewall of valve pocket 10 of fixed partition means 2, it is provided with sealing ring 82.If fixed partition means 2 is to be connected with valve body 1, then without arranging sealing ring 82.
In the present embodiment, in order to reach to be fixed on the inner peripheral of elastic sealing gasket 4 purpose of valve rod 31, the core assembly of the present embodiment also includes clamping dish 35 and lower clamping dish 36, upper clamping dish 35 and lower clamping dish 36 are respectively equipped with central through hole, valve rod 31 passes central through hole 350 and the central through hole 360 of lower clamping dish 36 of upper clamping dish 35, and is connected with upper clamping dish 35 and lower clamping dish 36 respectively.The inner peripheral of elastic sealing gasket 4 is clamped and fixed between clamping dish 35 and lower clamping dish 36, moves up and down together so that the inner peripheral of elastic sealing gasket 4 can follow valve rod 31, also achieves the sealing after elastic sealing gasket inner peripheral compresses simultaneously.In order to prevent liquid from flowing into the space above elastic sealing gasket 4 from the space between the central through hole 350 of upper clamping dish 35, the central through hole 40 of elastic sealing gasket 4 and the central through hole 360 of lower clamping dish 36 and valve rod 31, at least one in the central through hole 360 of the central through hole 350 of upper clamping dish 35, the central through hole 40 of elastic sealing gasket 4 and lower clamping dish 36 seals with the outer peripheral face of valve rod 31 and coordinates.In the present embodiment, lower clamping dish 36 is connected as a single entity with valve disc 32, and is riveted together with the lower end of valve rod 31, and in other embodiments, lower clamping dish 36 can also be two discrete parts with valve disc 32.
Fig. 6 shows the generalized section of the elastic sealing gasket according to this utility model one embodiment, incorporated by reference to shown in Fig. 6.The end face of the outer peripheral edge of elastic sealing gasket 4 and bottom surface are respectively equipped with the first limiting section 41 and the second limiting section 42, and the bottom surface of substrate 23 and the upper surface of clasp 5 are respectively equipped with the 3rd limiting section with the first limiting section 41 male-female engagement and the 4th limiting section (not marking the 3rd limiting section and the 4th limiting section in figure) with the second limiting section 42 male-female engagement.The end face of the inner peripheral of elastic sealing gasket 4 and bottom surface are respectively equipped with the 5th limiting section 45 and the 6th limiting section 46, and the bottom surface of upper clamping dish 35 and the end face of lower clamping dish 36 are respectively equipped with the 7th limiting section with the 5th limiting section 45 male-female engagement and the 8th limiting section (not marking the 7th limiting section and the 8th limiting section in figure) with the 6th limiting section 46 male-female engagement.In figure 6, the first, second, the 5th and the 6th limiting section is annular projection, and the three, the four, the 7th and the 8th limiting section be respectively with the annular recess of above-mentioned annular projection male-female engagement.As a kind of alternative embodiment, it is also possible to the three, the four, the 7th and the 8th limiting section is configured to annular projection, and the first, second, the 5th and the 6th limiting section is configured to and the annular recess of this annular projection male-female engagement.The structure of above-mentioned this male-female engagement, can make the outer peripheral edge of elastic sealing gasket 4 and inner peripheral be not easy to get loose from clamped position when elastic sealing gasket 4 is stretched.
As shown in Figure 6, the centre position between outer peripheral edge and the inner peripheral of elastic sealing gasket 4 is additionally provided with annular protrusion 47.Annular projection 47 contributes to guaranteeing that elastic sealing gasket 4 has enough elastic deformation surpluses following during valve rod 31 moves.
Further, including core assembly drive mechanism according to the electrical valve movable sealing structure of this utility model one embodiment, this core assembly drive mechanism is arranged in electric chamber 10a, for driving core assembly to move along the axial direction of valve body 1.In the present embodiment, core assembly drive mechanism includes solenoid 61 and coil rack 62；Solenoid 61 winding is on the outer peripheral face of coil rack 62；Coil rack 62 has centre bore 620, and the upper end of core assembly is arranged in the centre bore 620 of coil rack 62；Solenoid 61 can apply a downward thrust when energising to core assembly, makes core assembly be moved to closed position by open position.Core assembly also includes that slide block 37, slide block 37 are arranged in electric chamber 10a, and slide block 37 is provided with centre bore 370, and centre bore 370 is inserted in the upper end of valve rod 31, and with centre bore 370 interference fit.
Further, sleeve 71 and fixing seat 72 are included according to the electrical valve movable sealing structure of this utility model one embodiment.Sleeve 71 is arranged in electric chamber 10a, including annular upper wall 711, annular bottom wall 712 and the annular sidewall 713 being connected between annular upper wall 711 and annular bottom wall 712.Solenoid 61 and coil rack 62 are arranged in sleeve 71.Fixing seat 72 is through the central through hole of annular bottom wall 712, and fixed partition means 2 is connected with the bottom of fixing seat 72.Core assembly includes that valve rod back-moving spring 38, the top and bottom of valve rod back-moving spring 38 abut slide block 37 and fixing seat 72 respectively, for when solenoid 61 dead electricity, provides a reset force being reset to open position by closed position to core assembly.
Further, the invention also discloses a kind of electrical valve, this electrical valve includes above-mentioned electrical valve movable sealing structure.In the embodiment shown in Fig. 1 to Fig. 4, this electrical valve is electromagnetic valve, i.e. applies thrust by being energized to solenoid 61 to core assembly.But, electrical valve of the present utility model is not limited to this, it is also possible to be as the electrical valve of power source by motor.
Obviously, those skilled in the art can carry out various change and modification without deviating from spirit and scope of the present utility model to this utility model.So, if these amendments of the present utility model and modification belong within the scope of this utility model claim and equivalent technologies thereof, then this utility model is also intended to comprise these change and modification.
Claims (10)
1. an electrical valve movable sealing structure, it is characterised in that include valve body, fixed partition means and core assembly；
Described valve body has entrance, outlet and valve pocket；
Described fixed partition means is arranged in described valve pocket, described valve pocket is divided into the electric chamber being positioned at above described fixed partition means and is positioned at the fluid cavity below described fixed partition means；It is provided with the valve port of described entrance Yu described outlet in described fluid cavity；Described fixed partition means has central through hole；
Described core assembly can between open position and closed position moving axially along described valve body, when described core assembly is in described open position, described valve port is unlocked, and when described core assembly is in the closed position, described valve port is closed by described core assembly；Described core assembly includes valve rod；
Wherein, described electrical valve movable sealing structure also includes that elastic sealing gasket, described elastic sealing gasket are arranged in described fluid cavity, and is positioned at the lower section of the central through hole of described fixed partition means；Described elastic sealing gasket has central through hole；
Described valve rod passes described fixed partition means and the central through hole of described elastic sealing gasket, and the top and bottom of described valve rod are respectively protruding in described electric chamber and described fluid cavity；
The outer peripheral edge of described elastic sealing gasket and inner peripheral are individually fixed in the inside of described fluid cavity and described valve rod, and when described core assembly moves between described open position and described closed position, the inner peripheral of described elastic sealing gasket is followed described valve rod and is moved together, and the space below the space above described elastic sealing gasket and described elastic sealing gasket seals against each other.
2. electrical valve movable sealing structure as claimed in claim 1, it is characterised in that described fixed partition means or the cavity wall of described fluid cavity are fixed in the outer peripheral edge of described elastic sealing gasket.
3. electrical valve movable sealing structure as claimed in claim 1, it is characterised in that described fixed partition means includes the skirtboard that substrate and the periphery from described substrate downwardly extend, and the central through hole of described fixed partition means is opened on described substrate；
Described electrical valve movable sealing structure also includes the inner peripheral surface interference fit of a clasp, the outer peripheral face of described clasp and described skirtboard, and the outer peripheral edge of described elastic sealing gasket is held between the bottom surface of described substrate and the upper surface of described clasp.
4. electrical valve movable sealing structure as claimed in claim 3, it is characterized in that, the end face of the outer peripheral edge of described elastic sealing gasket and bottom surface are respectively equipped with the first limiting section and the second limiting section, and the bottom surface of described substrate and the upper surface of described clasp are respectively equipped with the 3rd limiting section with described first limiting section male-female engagement and the 4th limiting section with described second limiting section male-female engagement.
5. the electrical valve movable sealing structure as in any of the one of Claims 1-4, it is characterized in that, described core assembly also includes clamping dish and lower clamping dish, described upper clamping dish and described lower clamping dish are equipped with central through hole, described valve rod passes described upper clamping dish and the central through hole of described lower clamping dish, and is connected with upper clamping dish and lower clamping dish respectively；The inner peripheral of described elastic sealing gasket is clamped and fixed between described upper clamping dish and described lower clamping dish；
At least one in the central through hole of the central through hole of described upper clamping dish, the central through hole of described elastic sealing gasket and described lower clamping dish seals with the outer peripheral face of described valve rod and coordinates.
6. electrical valve movable sealing structure as claimed in claim 5, it is characterized in that, the end face of the inner peripheral of described elastic sealing gasket and bottom surface are respectively equipped with the 5th limiting section and the 6th limiting section, and the bottom surface of described upper clamping dish and the end face of described lower clamping dish are respectively equipped with the 7th limiting section with described 5th limiting section male-female engagement and the 8th limiting section with described 6th limiting section male-female engagement.
7. electrical valve movable sealing structure as claimed in claim 1, it is characterised in that the centre position between outer peripheral edge and the inner peripheral of described elastic sealing gasket is provided with annular protrusion.
8. electrical valve movable sealing structure as claimed in claim 1, it is characterised in that described core assembly includes that valve disc, described valve disc are fixed on the lower end of described valve rod；The bottom surface of described valve disc is provided with annular dovetail slot, is embedded with sealing ring in described annular dovetail slot, and described sealing ring partly protrudes from the bottom surface of described valve disc；
Described valve port be provided around sealing surface；When described core assembly is in described closed position, the described sealing ring described sealing surface of conflict, to realize the closedown to described valve port.
9. electrical valve movable sealing structure as claimed in claim 1, it is characterized in that, electrical valve movable sealing structure includes that core assembly drive mechanism, described core assembly drive mechanism are arranged on described electric intracavity, for driving described core assembly to move along the axial direction of described valve body.
10. an electrical valve, it is characterised in that include electrical valve movable sealing structure as in one of claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413198.0U CN205745621U (en) | 2016-05-09 | 2016-05-09 | Electrical valve movable sealing structure and electrical valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413198.0U CN205745621U (en) | 2016-05-09 | 2016-05-09 | Electrical valve movable sealing structure and electrical valve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205745621U true CN205745621U (en) | 2016-11-30 |
Family
ID=57370122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620413198.0U Withdrawn - After Issue CN205745621U (en) | 2016-05-09 | 2016-05-09 | Electrical valve movable sealing structure and electrical valve thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205745621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757334A (en) * | 2016-05-09 | 2016-07-13 | 嘉兴科奥电磁技术有限公司 | Electrical valve dynamic sealing structure and electrical valve thereof |
-
2016
- 2016-05-09 CN CN201620413198.0U patent/CN205745621U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757334A (en) * | 2016-05-09 | 2016-07-13 | 嘉兴科奥电磁技术有限公司 | Electrical valve dynamic sealing structure and electrical valve thereof |
| CN105757334B (en) * | 2016-05-09 | 2018-01-12 | 嘉兴科奥电磁技术有限公司 | Electrical valve movable sealing structure and its electrical valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161130 Effective date of abandoning: 20180112 |