CN202597760U - Sealing element for conversion valve - Google Patents
Sealing element for conversion valve Download PDFInfo
- Publication number
- CN202597760U CN202597760U CN 201220163213 CN201220163213U CN202597760U CN 202597760 U CN202597760 U CN 202597760U CN 201220163213 CN201220163213 CN 201220163213 CN 201220163213 U CN201220163213 U CN 201220163213U CN 202597760 U CN202597760 U CN 202597760U
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- sealing
- spool
- valve
- supporting base
- switching valve
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Abstract
The utility model provides a sealing element for a conversion valve, belongs to the technical field of valves, and solves problems that a valve core and a valve body in the conventional valve are easy to wear, and the conventional valve is poor in sealing effect. The conversion valve comprises a valve body, a valve core and a valve rod, wherein the valve core is cylindrical; the valve body is provided with a water inlet and water outlets; the side of the valve core is provided with a valve core hole; the sealing element is arranged between the outer side wall of the valve core and the inner wall of the valve body and comprises a circular annular supporting seat and a sealing part fixed with the supporting seat; and the sealing part is annular, and a plurality of sealing lips which are circularly bulged are arranged outside the sealing part in parallel. The sealing element for the conversion valve has the advantages of good sealing effect, long service life and the like.
Description
Technical field
The utility model belongs to valve technology field, relates to the Sealing of a kind of Sealing, particularly a kind of switching valve.
Background technique
At present in the relevant device of the draining of industry and hot-water heating and liquid control system, switch is rapid, easy to operate, fluid resistance is little because switching valve has, advantages of simple structure and simple and extensively being adopted.
In the draining and liquid control system of general hot-water heating, generally adopt the switching valve of columnar spool, in use, utilize spool to rotate and realize connecting or closing and regulate openings of sizes regulating or open and close plumbing pipe around the axis of valve rod.
A kind of manual threeway shunt valve [application number: 200420077886.1 that openly proposes like the Chinese patent documents and materials; Notice of authorization number: CN2711479Y], this valve body is " ten " font, and a water intake is arranged; Two water outlets and an assembly mouth, water intake and assembly mouth are relative, and two water outlets are relative; The assembly mouth internal upper part is fluted, and spool is inverted cylindric, and the spool external diameter is identical with valve body assembly mouth internal diameter; On the spool cylindrical wall spool bore is arranged, the quantity of spool bore is one or two, and the spool bore center height is consistent with two water outlets; Spool top is fixed with rotatable handle, and spool top cylindrical has convexity.Spool inserts from the valve body assembly mouth, and the spool upper lobes embeds valve body recess, and spool can rotate in valve body, but is not easy.But owing to be the effect that reaches sealing that cooperates between the inwall of outer side wall and valve body of employing spool between the spool of this manual threeway shunt valve and the valve body; Owing to there is error when making or assembling; Perhaps because after long-time the use; Be easy to generate the gap after the wearing and tearing between spool and the valve body, make the sealing effect of this manual threeway shunt valve relatively poor.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, proposed a kind of sealing effect better and working life the Sealing of long switching valve.
The purpose of the utility model can realize through following technical proposal: a kind of Sealing of switching valve; Switching valve comprises valve body, spool, valve rod; Described spool is cylindric, offers water intake and water outlet on the described valve body, and the sidepiece of described spool offers spool bore; Described Sealing is arranged between the outer side wall and described valve interior wall of described spool; It is characterized in that described Sealing comprises supporting base that is circular and the sealed department that fixes with described supporting base, described sealed department ringwise and its outside for some roads laterally arrange and ringwise the protrusion sealing lip.
When assembling, this Sealing is arranged between spool and the valve body, make an end of supporting portion be resisted against on the valve body, make simultaneously on the outer side wall that is close to spool of sealing lip.In use, drive the size that valve core rotation is come fluid flow in the control valve body through valve rod.Because have multiple-sealed lip on the sealed department, the per pass sealing lip all can abut on the outer wall of spool, plays seal action.When this Sealing uses; Between Sealing and spool, use lubricant oil usually; And lubricant oil can reside in the groove between the adjacent two seals lip; Can increase the tightness between spool and the Sealing when the position of spool is in when making the valve closing state, further play seal action, surpass common multi-sealed sealing effect; Simultaneously, more laborsaving when the valve core rotation of switching valve because the lubrication of lubricant oil is arranged, and reduced the wearing and tearing of sealing lip, thus prolonged working life.
In the Sealing of above-mentioned switching valve, the outside of described sealed department is made up of 2 to 4 road sealing lips.Adopting the sealing lip in 2 to 4 roads, is the selection of an optimization.If the quantity of sealing lip is too much, can cause the groove between the adjacent two seals lip to shoal, influence its sealing effect.
In the Sealing of above-mentioned switching valve, the angle between the hypotenuse of the sealing lip that the sectional shape of described sealing lip is triangular in shape and adjacent is 60 °～135 °.Angle between the hypotenuse of adjacent seals lip is 60 °～135 °, according to fluid principles, can better lubricant oil be resided in the groove between two sealing lips, can play lubricated effect for a long time, has reduced wearing and tearing.
In the Sealing of above-mentioned switching valve, described sealing lip includes two forced sections that are strip and all parallel with the axis of spool, and is all continuous through curved joint between the corresponding two ends of described forced section.Spool bore is elongated and along its axial distribution, in the valve core rotation process, the forced section that is strip can be evenly stressed, reduced wearing and tearing.
In the Sealing of above-mentioned switching valve, the inboard of described sealed department is some the fixing parts that are strip, and described fixing part is embedded in the described supporting base and the one of which end links to each other with the inboard of described sealing lip.Fixing part is embedded in sealed department is connected with supporting base mutually, has advantage simple in structure, easy to connect.
In the Sealing of above-mentioned switching valve, described sealed department also comprises the fixing part that is embedded on the described supporting base outer wall.Because being positioned at the cavity that holds sealed department on the supporting base is connected through some plug holes with the cavity that holds fixing part; When injection moulding; Through in die cavity, pouring into a mould rubber material; Form sealed department with fixing part and through the rubber material that is positioned at plug hole it is linked to each other sealed department to be fixed on the supporting base, to have the advantage that is connected firmly.
In the Sealing of above-mentioned switching valve, the sidepiece of described supporting base is provided with the seal ring of annular, and the outer side wall of described seal ring is provided with annular groove.In use, the outer side wall of described seal ring abuts on the valve body, and annular groove makes between seal ring and the valve body and forms double seal.
In the Sealing of above-mentioned switching valve, described sealed department and described supporting base adopt the manufacturing of rubber one to form.Sealed department and supporting base adopt the manufacturing of rubber one to form, and it is simple to have technology, easily manufactured advantage.
In the Sealing of above-mentioned switching valve, described supporting base adopts engineering plastics to process, and described sealed department adopts rubber injection mold to process.During fabrication, the supporting base that adopts engineering plastics to process had intensity preferably; Sealed department adopts rubber injection mold to process, and has the better seal effect.
Compared with prior art, the Sealing of this switching valve has following advantage:
1, this Sealing in use; The per pass sealing lip all can abut on the outer wall of spool; All seal action can be played respectively,, the tightness between spool and the Sealing can be increased when making the valve closing state when the position of spool is in because the groove between the adjacent two seals lip can also have been retained lubricant oil; Further play seal action, surpassed common multi-sealed sealing effect;
2, the sealing lip through adopting the multiple tracks rubber material to process makes this Sealing good in the condition of the low torsion of low-pressure, can also play the better seal effect;
3, have the forced section that is strip on the sealing lip, in the process that valve opening is perhaps closed, this sealing lip receives uniform active force, has lowered the wearing and tearing of sealing lip, makes this Sealing have long working life.
Description of drawings
Fig. 1 is the sectional structure schematic representation of this switching valve.
Fig. 2 is the perspective view of the Sealing of this switching valve.
Fig. 3 is the main TV structure schematic representation of the Sealing of this switching valve.
Fig. 4 be this switching valve Sealing embodiment one A-A sectional structure schematic representation.
Fig. 5 be this switching valve Sealing embodiment two A-A sectional structure schematic representation.
Fig. 6 be this switching valve Sealing embodiment three A-A sectional structure schematic representation.
Fig. 7 be this switching valve Sealing embodiment four A-A sectional structure schematic representation.
Among the figure, 1, valve body; 1a, water intake; 1b, water outlet; 2, spool; 2a, spool bore; 3, valve rod; 4, sealed department; 4a, sealing lip; 4a 1, forced section; 4a2, joint; 4b, fixing part; 5, supporting base; 6, seal ring; 6a, annular groove.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
Embodiment one
Shown in Fig. 1 to 4; A kind of Sealing of switching valve, switching valve comprise valve body 1, spool 2, valve rod 3, and spool 2 is cylindric; Offer water intake 1a and water outlet 1b on the valve body 1; The sidepiece of spool 2 offers spool bore 2a, and Sealing is arranged between the outer side wall and described valve body 1 inwall of spool 2, and Sealing comprises and is supporting base 5 circular and that locate mutually with valve body 1 and the sealed department 4 that fixes with supporting base 5; Sealed department 4 ringwise and its outside laterally arranges for twice and the sealing lip 4a of ringwise protrusion, and per pass sealing lip 4a all abuts on the outer wall of spool 2.Sealing lip 4a includes two forced section 4a1 that are strip and all parallel with the axis of spool 2; All link to each other between the opposite ends of forced section 4a1 through curved joint 4a2; In spool 2 rotation processes, the forced section 4a1 that is strip can be evenly stressed, reduced wearing and tearing.Angle between the hypotenuse of the sealing lip 4a that the sectional shape of sealing lip 4a is triangular in shape and adjacent is 60 °～135 °; According to fluid principles; Can better lubricant oil be stored in the groove between the two sealing lip 4a, can play lubricated effect for a long time, reduce wearing and tearing.
Sealed department 4 comprises that also the fixing part 4b. supporting base 5 that is embedded on supporting base 5 outer walls adopts engineering plastics to process, and sealed department 4 adopts rubber injection mold to process, and the supporting base 5 that adopts engineering plastics to process has intensity preferably; Sealed department 4 adopts rubber injection mold to process, and has the better seal effect.Because being positioned at the cavity that holds sealed department 4 on the supporting base 5 is connected through some plug holes with the cavity that holds fixing part 4b; When injection moulding; Through in die cavity, pouring into a mould rubber material; Form sealed department 4 with fixing part 4b and through the rubber material that is positioned at plug hole it is linked to each other sealed department 4 to be fixed on the supporting base 5, to have the advantage that is connected firmly.
When assembling, this Sealing is arranged between spool 2 and the valve body 1, make an end of supporting portion be resisted against on the valve body 1, on the outer side wall that is close to spool 2 of per pass sealing lip 4a, all can play seal action respectively simultaneously, can reach multiple sealing effect.In use, drive the size that spool 2 rotates fluid flow in the control valve body 1 through valve rod 3.Because the groove between the adjacent two seals lip 4a can also have been retained lubricant oil; When being in, the position of spool 2 can increase the tightness between spool 2 and this Sealing when making the valve closing state; Further play seal action, surpassed common multi-sealed sealing effect.After long-time use and wearing and tearing, as long as also have the sealing lip 4a that can seal for one, this Sealing also can reach the effect of sealing, makes the working life of this Sealing longer.Can storing lubricating oil between sealing lip 4a and the sealing lip 4a, the wearing and tearing of having lowered sealing lip 4a have prolonged working life.Adopt two seals lip 4a to abut in uniformly on the outer wall of spool 2, make this Sealing under the condition of the low torsion of low-pressure, can also play the better seal effect.
The Sealing of this switching valve is applicable to electric powered steering valve and manual steering valve, all can play better seal effect and long working life.
Embodiment two
Present embodiment is basic identical with embodiment one structure and principle; Different place is: as shown in Figure 5; The inboard of sealed department 4 is some the fixing part 4b that are strip, and fixing part 4b is embedded in the supporting base 5 and the one of which end links to each other with the inboard of sealing lip 4a, and fixing part 4b is embedded in sealed department 4 is connected with supporting base 5 mutually; Has advantage simple in structure, easy to connect.
Embodiment three
Present embodiment is basic identical with embodiment one structure and principle; Different place is: as shown in Figure 6, sealed department 4 adopts the cast of rubber one to form with supporting base 5, and sealed department 4 adopts the cast of rubber one to form with supporting base 5; It is simple to have technology, easily manufactured advantage.
Embodiment four
Present embodiment is basic identical with embodiment one structure and principle; Different place is: as shown in Figure 7; The sidepiece of supporting base 5 is provided with seal ring 6, and the outer side wall of seal ring 6 is provided with annular groove 6a, in use; The outer side wall of seal ring 6 abuts on valve body 1 inwall, and annular groove 6a makes between seal ring 6 and valve body 1 inwall and forms double seal.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as valve body 1, water intake 1a, water outlet 1b, spool 2, spool bore 2a, valve rod 3, sealed department 4, sealing lip 4a, forced section 4a1, joint 4a2, fixing part 4b, supporting base 5, seal ring 6, annular groove 6a morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (9)
1. the Sealing of a switching valve; Switching valve comprises valve body (1), spool (2), valve rod (3); Described spool (2) is cylindric, offers water intake (1a) and water outlet (1b) on the described valve body (1), and the sidepiece of described spool (2) offers spool bore (2a); Described Sealing is arranged between the outer side wall and described valve body (1) inwall of described spool (2); It is characterized in that described Sealing comprises supporting base (5) that is circular and the sealed department (4) that fixes with described supporting base (5), described sealed department (4) ringwise and its outside for some roads laterally arrange and ringwise the protrusion sealing lip (4a).
2. the Sealing of switching valve according to claim 1 is characterized in that, the outside of described sealed department (4) is made up of 2 to 4 road sealing lips (4a).
3. the Sealing of switching valve according to claim 2 is characterized in that, the angle between the hypotenuse of the sealing lip (4a) that the sectional shape of described sealing lip (4a) is triangular in shape and adjacent is 60 °～135 °.
4. according to the Sealing of claim 1 or 2 or 3 described switching valves; It is characterized in that; Described sealing lip (4a) includes two forced sections (4a1) that are strip and all parallel with the axis of spool (2), and is all continuous through curved joint (4a2) between the corresponding two ends of described forced section (4a1).
5. the Sealing of switching valve according to claim 4; It is characterized in that; The inboard of described sealed department (4) is some the fixing parts (4b) that are strip, and described fixing part (4b) is embedded in the described supporting base (5) and the one of which end links to each other with the inboard of described sealing lip (4a).
6. the Sealing of switching valve according to claim 4 is characterized in that, described sealed department (4) also comprises the fixing part (4b) that is embedded on described supporting base (5) outer wall.
7. the Sealing of switching valve according to claim 4 is characterized in that, the sidepiece of described supporting base (5) is provided with the seal ring (6) of annular, and the outer side wall of described seal ring (6) is provided with annular groove (6a).
8. the Sealing of switching valve according to claim 4 is characterized in that, described sealed department (4) adopts the manufacturing of rubber one to form with described supporting base (5).
9. according to the Sealing of claim 1 or 2 or 3 described switching valves, it is characterized in that described supporting base (5) adopts engineering plastics to process, described sealed department (4) adopts rubber injection mold to process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163213 CN202597760U (en) | 2012-04-17 | 2012-04-17 | Sealing element for conversion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220163213 CN202597760U (en) | 2012-04-17 | 2012-04-17 | Sealing element for conversion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597760U true CN202597760U (en) | 2012-12-12 |
Family
ID=47315299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220163213 Expired - Lifetime CN202597760U (en) | 2012-04-17 | 2012-04-17 | Sealing element for conversion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597760U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620007A (en) * | 2012-04-17 | 2012-08-01 | 詹征 | Seal for reversing valve |
| CN105020533A (en) * | 2015-08-25 | 2015-11-04 | 核工业理化工程研究院 | Sealing device used for hydraulic bursting test of fiber composite round pipe |
| CN108002040A (en) * | 2017-12-27 | 2018-05-08 | 新乡市高服机械股份有限公司 | Positive pressure conveys online weighing feed bin |
| CN110494684A (en) * | 2017-04-12 | 2019-11-22 | 日立汽车系统株式会社 | Rotary control valve |
-
2012
- 2012-04-17 CN CN 201220163213 patent/CN202597760U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620007A (en) * | 2012-04-17 | 2012-08-01 | 詹征 | Seal for reversing valve |
| CN105020533A (en) * | 2015-08-25 | 2015-11-04 | 核工业理化工程研究院 | Sealing device used for hydraulic bursting test of fiber composite round pipe |
| CN110494684A (en) * | 2017-04-12 | 2019-11-22 | 日立汽车系统株式会社 | Rotary control valve |
| CN108002040A (en) * | 2017-12-27 | 2018-05-08 | 新乡市高服机械股份有限公司 | Positive pressure conveys online weighing feed bin |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |