CN204312745U - A kind of gate valve - Google Patents
A kind of gate valve Download PDFInfo
- Publication number
- CN204312745U CN204312745U CN201420704203.4U CN201420704203U CN204312745U CN 204312745 U CN204312745 U CN 204312745U CN 201420704203 U CN201420704203 U CN 201420704203U CN 204312745 U CN204312745 U CN 204312745U
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- China
- Prior art keywords
- valve
- annulus
- gate valve
- hold
- filler
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Abstract
The utility model discloses a kind of gate valve, comprise: comprise handwheel, valve body, valve gap, spool, valve rod, filler, hold-down grid, bearing, first annulus, second annulus, first seal ring, second seal ring, flashboard, described valve gap is fixed on described valve body, described valve rod is through described valve gap and described hold-down grid, described filler compresses by described hold-down grid, described spool is positioned at the lower end of valve rod, shape is reverse frustoconic, described flashboard is turbination, described valve gap is by described first seal ring, described first annulus, sealing after described second annulus clamping.The utility model good airproof performance, operation easily, improve working life.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of gate valve.
Background technique
Gate valve makes open-shut device with flashboard and move along valve seat axes normal direction, to realize the valve of switching motion.The major advantage of gate valve is that runner is unobstructed, and fluid resistance is little, and open and close torque is little; Major defect is that sealing surface easily abrades, and opening and closing time is longer, the bodily form and weight larger.The application of gate valve on pipeline is very extensive, is suitable for manufacturing large bore valves.Gate valve is generally used for blocking fluid, should not be used for adjust flux.Because when gate valve is in half-open position, flashboard can make sealing surface destroy by fluid erosion and impact, also can produce vibration & noise.
The working life of gate valve is in the market not long, and sealability is not good enough, operation inconvenience.
Model utility content
In order to solve the problems of the technologies described above, the purpose of this utility model is to provide a kind of good airproof performance, operates easily, improves the Novel Brake Valve in working life.
The technical solution of the utility model is: a kind of gate valve, comprise handwheel, valve body, valve gap, spool, valve rod, filler, hold-down grid, bearing, first annulus, second annulus, first seal ring, second seal ring, flashboard, described valve gap is fixed on described valve body, described valve rod is through described valve gap and described hold-down grid, described filler compresses by described hold-down grid, described spool is positioned at the lower end of valve rod, shape is reverse frustoconic, described flashboard is turbination, described valve gap is by described first seal ring, described first annulus, sealing after described second annulus clamping.
Further, described flashboard is Flexible disc.
Further, described spool is double layer construction.
Further, described spool internal layer is that metallic material is made, and outer makes for metallic material.
Further, described spool internal layer is that metallic material is made, and outer makes for nonmetallic material.
Further, also comprise filler pressing sleeve, filler pressing sleeve is positioned at below hold-down grid.
Further, described filler is Expanded graphite.
The utility model beneficial effect is: flashboard is designed to inverted cone-shaped, the shape of spool is set to reverse frustoconic, compare with other shape, its sealing area is larger, more easily coordinate, the sealing effect produced can be better, simultaneously by valve gap by sealing after the first seal ring, the first annulus, the second annulus clamping, above-mentioned ensure that the utility model good airproof performance, operation easily, improve working life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make those skilled in the art understand the technical solution of the utility model better, below in conjunction with Figure of description, the utility model is described in further detail.The term used in the present embodiment only for description specific features, is not intended to be limited.
As shown in Figure 1, a kind of gate valve, comprise: handwheel 1, valve body 14, valve gap 10, spool 15, valve rod 11, filler 5, hold-down grid 4, filler pressing sleeve 6, bearing 3, first annulus 7, second annulus 8, first seal ring 9, second seal ring 13, flashboard 12, stud bolt 2, valve gap 10 is fixed on valve body 14, valve rod 11 is through valve gap 10, hold-down grid 4, filler pressing sleeve 6 is positioned at below hold-down grid 4, filler 5 compresses by hold-down grid 4, filler 5 can be Expanded graphite, spool 15 is positioned at the lower end of valve rod 11, shape is reverse frustoconic, adopt double layer construction, its internal layer is that metallic material is made, skin can be made for metallic material, also can make for nonmetallic material, flashboard 12 is turbination Flexible disc, flashboard 12 is designed to coniform, easily coordinate with valve seat, now good seal performance, simultaneously due to flexible design, can make up because process the deviation of the gradient caused, easy realization sealing.Valve gap 10 clamps rear sealing by the first seal ring 9, first annulus 7, second annulus 8, and in valve body when pressure medium height, sealability is also better.
More than show and describe the utility model major character, principle and advantage.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. a gate valve, it is characterized in that: comprise handwheel, valve body, valve gap, spool, valve rod, filler, hold-down grid, bearing, the first annulus, the second annulus, the first seal ring, the second seal ring, flashboard, described valve gap is fixed on described valve body, described valve rod is through described valve gap and described hold-down grid, described filler compresses by described hold-down grid, described spool is positioned at the lower end of valve rod, shape is reverse frustoconic, described flashboard is turbination, and described valve gap is by sealing after described first seal ring, described first annulus, described second annulus clamping.
2. gate valve according to claim 1, is characterized in that: described flashboard is Flexible disc.
3. gate valve according to claim 2, is characterized in that: described spool is double layer construction.
4. gate valve according to claim 3, is characterized in that: described spool internal layer is that metallic material is made, and outer makes for metallic material.
5. gate valve according to claim 3, is characterized in that: described spool internal layer is that metallic material is made, and outer makes for nonmetallic material.
6. gate valve according to claim 1, it is characterized in that: also comprise filler pressing sleeve, filler pressing sleeve is positioned at below hold-down grid.
7. gate valve according to claim 1, is characterized in that: described filler is Expanded graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704203.4U CN204312745U (en) | 2014-11-21 | 2014-11-21 | A kind of gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704203.4U CN204312745U (en) | 2014-11-21 | 2014-11-21 | A kind of gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312745U true CN204312745U (en) | 2015-05-06 |
Family
ID=53135063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420704203.4U Expired - Fee Related CN204312745U (en) | 2014-11-21 | 2014-11-21 | A kind of gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312745U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455509A (en) * | 2014-11-21 | 2015-03-25 | 苏州福润机械有限公司 | Gate valve |
| CN107725807A (en) * | 2017-11-16 | 2018-02-23 | 杭州华惠阀门有限公司 | A kind of septum valve |
-
2014
- 2014-11-21 CN CN201420704203.4U patent/CN204312745U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455509A (en) * | 2014-11-21 | 2015-03-25 | 苏州福润机械有限公司 | Gate valve |
| CN107725807A (en) * | 2017-11-16 | 2018-02-23 | 杭州华惠阀门有限公司 | A kind of septum valve |
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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: 20150506 Termination date: 20151121 |