CN205244590U - Rubber gate valve of good seal - Google Patents
Rubber gate valve of good seal Download PDFInfo
- Publication number
- CN205244590U CN205244590U CN201520919777.8U CN201520919777U CN205244590U CN 205244590 U CN205244590 U CN 205244590U CN 201520919777 U CN201520919777 U CN 201520919777U CN 205244590 U CN205244590 U CN 205244590U
- Authority
- CN
- China
- Prior art keywords
- valve
- groove
- valve gap
- described valve
- packing ring
- 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 rubber gate valve of good seal, on the valve gap, it is equipped with annular recess to be close to valve rod department, be equipped with seal structure in the recess, seal structure includes the drilled packing ring that the manganese brass was made, annular recess and sealed " O " type circle have been seted up respectively on drilled packing ring epipharynx and outer lip, sealed " O " type circle is located in the recess of epipharynx, seal structure and valve rod interference fit, with the recess that is equipped with relative setting on the valve gap of drilled packing ring contact surface, be equipped with annular gasket in the relative recess that sets up, a valve cove, be equipped with the shape for hat sealing member on gland and seal structure's the common contact surface, inboard and the valve rod interference fit of shape for hat sealing member. The utility model discloses simple structure, it is simple to use, sealed effectual, long service life.
Description
Technical field
The utility model relates to valve technology field, more particularly, relates to a kind of rubber valve of good seal.
Background technology
The major advantage of gate valve is: fluid resistance is little, and keying saves labour, can be the in the situation that of medium two-way flowUse, there is no directionality, when standard-sized sheet, sealing surface is difficult for erosion, and structure length is short, is not only applicable to doing minor valve,And be applicable to doing large valve.
Gate valve is divided into again metal sealing gate valve and soft seal (spring support sealing) gate valve. Metal sealing gate valve is also namedHard seal valve, is a kind of widely used valve, and its closed principle is that flashboard sealing surface and sealing surface of seat are highSpend bright and clean, smooth unanimously, bonded to each other, can stop MEDIA FLOW mistake, and rely on the mould of backform, spring or flashboardType, strengthens sealing effectiveness. The main cutting action that rises in its pipeline.
Soft seal (spring support sealing) gate valve is mainly to utilize flashboard entirety encapsulate to produce deformation-compensated effect to reachGood sealing effectiveness, has overcome the phenomenon that general Gate-valve sealing is bad, produce leakage or corrode. This valve hasThe remarkable advantages such as switch is light and handy, it is reliable, lightweight to seal, long service life.
But the structure major part of the rubber valve of producing on market is now: under gland, have a divided ring, soAfter on gland, do 3 roads sealings "O"-rings, so just make the height increase of valve, the use amount of partsIncrease, and decline significantly for the utilization rate in space. And said structure, sealing property can not reachRequirement, after long-time use, can engender leakage situation.
Therefore, owing to there is above technological deficiency in existing technology, be, that those skilled in that art are urgently to be resolved hurrilyTechnical problem.
Utility model content
The purpose of this utility model is for providing a kind of rubber valve of good seal, by establishing between valve gap and valve rodPut hermetically-sealed construction, and on gland, valve gap and hermetically-sealed construction, shape for hat seal is set, strengthened rubber valveSealing property. Have simple in structure, the advantage of good seal performance.
For achieving the above object, the utility model provides following technical scheme:
A rubber valve for good seal, mainly comprises valve body, valve gap, valve rod, flap and handwheel, described inValve gap is fixed at described valve body top, and center, described valve gap top is provided with through hole, and described valve rod is vertically through instituteState valve body, and through the through hole of being located at center, described valve gap top, described valve stem tip is provided with handwheel, described valveBar bottom is provided with flap, and described flap is in the cavity of described valve body, and described valve gap top is provided with gland, described inValve gap is screwed and is connected with described gland; On described valve gap, be provided with annular groove near valve rod place,In described groove, be provided with hermetically-sealed construction, described hermetically-sealed construction comprises packing ring that manganese brass makes, at described fillerOn ring epipharynx and outer lip, offer respectively several groove and sealing "O"-ring of annular, described sealing"O"-ring is located in the described groove of epipharynx, and described hermetically-sealed construction and described valve rod interference fit, with describedThe described valve gap of packing ring contact-making surface is provided with the groove being oppositely arranged, and in the described groove being oppositely arranged, is provided with ringShape sealing gasket, the common contact-making surface of described valve gap, gland and hermetically-sealed construction is provided with shape for hat seal, described capType seal inner side and described valve rod interference fit.
Preferably, described packing ring epipharynx is provided with 2 grooves, and described packing ring outer lip is provided with 3 grooves,Described sealing "O"-ring is located in the described groove of epipharynx.
Preferably, described valve gap is fixedly connected with by several hexagon socket head cap screw with described gland, and described interior sixAngle screw is 4.
Preferably, described packing ring is overall ring-type.
The beneficial effects of the utility model are: packing ring of the present utility model adopts the good manganese brass of wearabilityMake, improved the anti-wear performance of part, extended service life, saved use cost; By at valve gapBe provided with hermetically-sealed construction contact site the groove coordinating with hermetically-sealed construction, and Gask-O-Seal be set in groove,Thereby can strengthen the sealing property of valve gap and hermetically-sealed construction; And connecing gland, valve gap and hermetically-sealed construction threeTactile position is provided with shape for hat seal, thereby can between three, form stable sealing effectiveness, has improved closeEnvelope stability; On the epipharynx of packing ring, have groove, the sealing "O"-ring arranging in groove, with valveLid and valve rod form sealing pair simultaneously, have strengthened sealing effectiveness, and have reduced the usage quantity of parts, carryHigh space availability ratio. The utility model is simple in structure, uses simply good sealing effect, long service life.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, and apparently, the following describesIn accompanying drawing be only embodiment more of the present utility model, for those of ordinary skill in the art, notPay under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the local enlarged diagram of hermetically-sealed construction of the present utility model;
In figure: 1 is valve body; 2 is valve gap; 3 is valve rod; 4 is flap; 5 is handwheel; 6 is gland; 7For hermetically-sealed construction; 7-1 is packing ring; 7-2 is groove; 7-3 is sealing "O"-ring; 7-4 is ring packingPad; 8 is hexagon socket head cap screw; 9 is shape for hat seal.
Detailed description of the invention
The utility model provides a kind of rubber valve of good seal, the sealing ring that adopts manganese brass to make, toolHave simple in structure, long service life, the feature of good sealing effect.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is enteredGo and know and detailed description, obviously, described embodiment is only a part of embodiment of the present utility model,Instead of whole embodiment. Based on the embodiment in the utility model, those of ordinary skill in the art are not doingGo out all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
The rubber valve of a kind of good seal as illustrated in fig. 1 and 2, mainly comprises valve body 1, valve gap 2, valveBar 3, flap 4 and handwheel 5, described valve gap 2 is fixed at described valve body 1 top, described valve gap 2 topsCenter is provided with through hole, and described valve rod 3 vertically passes described valve body 1, and through being located in described valve gap 2 topsThe through hole of the heart, described valve rod 3 tops are provided with handwheel 5, and described valve rod 3 bottoms are provided with flap 4, described flap4 in the cavity of described valve body 1, and described valve gap 2 tops are provided with gland 6, described valve gap 2 and described gland6 are fixedly connected with; On described valve gap 2, be provided with annular groove near valve rod 3 places, in described groove, be provided with closeSeal structure 7, described hermetically-sealed construction 7 comprises packing ring 7-1 that manganese brass makes, at described packing ring epipharynx andOn outer lip, offer several groove 7-2 and sealing "O"-ring 7-3 of annular, described sealing " O "Type circle 7-3 is located in the described groove 7-2 of epipharynx, described hermetically-sealed construction 7 and described valve rod 3 interference fit,Be provided with the described valve gap 2 of described packing ring 7-1 contact-making surface the groove 7-2 being oppositely arranged, be oppositely arrangedIn described groove 7-2, be provided with Gask-O-Seal 7-4, described valve gap 2, gland 6 and hermetically-sealed construction 7 commonContact-making surface is provided with shape for hat seal 9, described shape for hat seal 9 inner sides and described valve rod 3 interference fit. AndAnd packing ring 7-1 adopts manganese brass material to make, and has feature wear-resisting, that lubricity is good, can reduce valve rod3 and packing ring 7-1 between frictional force.
Further, described packing ring 7-1 epipharynx is provided with 2 groove 7-2, outside described packing ring 7-1Lip is provided with 3 groove 7-2, and described sealing "O"-ring 7-3 is located in the described groove 7-2 of epipharynx. Fill outSealing "O"-ring 7-3 in groove 7-2 on material ring 7-1 epipharynx contacts with valve rod 3, forms sealingSecondary; In the groove 7-2 that groove 7-2 on packing ring 7-1 outer lip coordinates with valve gap 2, Gask-O-Seal 7-4 is set,Form sealing pair, strengthened the sealing effectiveness of gate valve entirety, prevent that liquid is from gate valve top spill and leakage. And, thisSample can be realized the double effects of sealing and location simultaneously.
Further, described valve gap 2 is fixedly connected with by several hexagon socket head cap screw 8 with described gland 6,Described hexagon socket head cap screw 8 is 4.
Further, described packing ring 7-1 is overall ring-type. Replace the side of the divided ring in existing gate valveFormula, can interference fit, has strengthened the sealing property of packing ring 7-1 and valve rod 3.
In use, packing ring of the present utility model adopts the good manganese brass of wearability to make to the utility model,The anti-wear performance that has improved part, has extended service life, has saved use cost; By in valve gap and sealingStructure contact site is provided with the groove coordinating with hermetically-sealed construction, and Gask-O-Seal is set in groove, therebyCan strengthen the sealing property of valve gap and hermetically-sealed construction; And at gland, valve gap and hermetically-sealed construction three's contact sitePosition is provided with shape for hat seal, thereby can between three, form stable sealing effectiveness, has improved sealing surelyQualitative energy; On the epipharynx of packing ring, have groove, the sealing "O"-ring arranging in groove, with valve gap andValve rod forms sealing pair simultaneously, has strengthened sealing effectiveness, and has reduced the usage quantity of parts, has improvedSpace availability ratio. The utility model is simple in structure, uses simply good sealing effect, long service life.
In this description, each embodiment adopts the mode of going forward one by one to describe, what each embodiment stressed is withThe difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use this realityWith novel. Apparent for those skilled in the art to the multiple amendment of these embodiment,General Principle as defined herein can be in the situation that not departing from spirit or scope of the present utility model, at itIn its embodiment, realize. Therefore, the utility model will can not be restricted to these embodiment shown in this article, andTo meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a rubber valve for good seal, mainly comprises valve body, valve gap, valve rod, flap and handwheel,Described valve gap is fixed at described valve body top, and center, described valve gap top is provided with through hole, and described valve rod is vertically wornCross described valve body, and through the through hole of being located at center, described valve gap top, described valve stem tip is provided with handwheel, instituteState valve rod bottom and be provided with flap, described flap, in the cavity of described valve body, is characterized in that: described valve gap topEnd is provided with gland, and described valve gap is screwed and is connected with described gland; On described valve gap, near valve rod placeBe provided with annular groove, in described groove, be provided with hermetically-sealed construction, described hermetically-sealed construction comprises filling out that manganese brass makesMaterial ring, on described packing ring epipharynx and outer lip, offer respectively several groove and sealing " O " of annularType circle, described sealing "O"-ring is located in the described groove of epipharynx, described hermetically-sealed construction and described valve rod mistakeBe full of cooperation, be provided with the described valve gap of described packing ring contact-making surface the groove being oppositely arranged, the institute being oppositely arrangedState in groove and be provided with Gask-O-Seal, the common contact-making surface of described valve gap, gland and hermetically-sealed construction is provided with shape for hatSeal, described shape for hat seal inner side and described valve rod interference fit.
2. the rubber valve of good seal as claimed in claim 1, is characterized in that: in described packing ringLip is provided with 2 grooves, and described packing ring outer lip is provided with 3 grooves, and described sealing "O"-ring is located atIn the described groove of epipharynx.
3. the rubber valve of good seal as claimed in claim 1, is characterized in that: described valve gap and instituteState gland and be fixedly connected with by several hexagon socket head cap screw, described hexagon socket head cap screw is 4.
4. the rubber valve of the good seal as described in claims 1 to 3 any one, is characterized in that: instituteStating packing ring is overall ring-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520919777.8U CN205244590U (en) | 2015-11-18 | 2015-11-18 | Rubber gate valve of good seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520919777.8U CN205244590U (en) | 2015-11-18 | 2015-11-18 | Rubber gate valve of good seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244590U true CN205244590U (en) | 2016-05-18 |
Family
ID=55943667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520919777.8U Expired - Fee Related CN205244590U (en) | 2015-11-18 | 2015-11-18 | Rubber gate valve of good seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205244590U (en) |
-
2015
- 2015-11-18 CN CN201520919777.8U patent/CN205244590U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20181118 |