CN203067918U - Gate valve with elastic sealing block - Google Patents
Gate valve with elastic sealing block Download PDFInfo
- Publication number
- CN203067918U CN203067918U CN 201320061972 CN201320061972U CN203067918U CN 203067918 U CN203067918 U CN 203067918U CN 201320061972 CN201320061972 CN 201320061972 CN 201320061972 U CN201320061972 U CN 201320061972U CN 203067918 U CN203067918 U CN 203067918U
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- valve rod
- elastic packing
- packing piece
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 15
- 238000012856 packing Methods 0.000 claims abstract description 40
- 239000012530 fluid Substances 0.000 claims abstract description 26
- 210000004907 gland Anatomy 0.000 abstract description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Landscapes
- Lift Valve (AREA)
Abstract
The utility model discloses a gate valve with an elastic sealing block, which comprises a valve body, wherein a fluid passage and a valve rod passage are arranged in the valve body; a gate plate for opening or closing the fluid passage is arranged in the fluid passage, and is connected with a valve rod; the valve rod is arranged in the valve rod passage, extends in a direction far away from the gate plate, and penetrates out of the valve body; the elastic sealing block and a valve cover are arranged on one side, where the valve rod penetrates out, of the valve rod passage of the valve body, and sequentially arranged on the valve rod in a sleeving manner in the extension direction of the valve rod; the elastic sealing block is in movable sealing matching with the valve rod; and the valve cover is fixedly connected with an inner side wall of the valve rod passage in a threaded connection manner. According to the gate valve with the elastic sealing block, the valve rod of the gate valve is sealed by the elastic sealing block, so that parts, such as a packing cover, a packing gland and a packing of the traditional gate valve are saved; a structure is simpler; the crocking resistance of an elastic sealing body is better; the durability is better; and the service life is longer.
Description
Technical field
The utility model relates to pipeline and opens and closes element, is specifically related to a kind of gate valve with the elastic packing piece.
Background technique
Gate valve is one of the most frequently used block valve, is mainly used to connect or block the medium in the pipeline.Pressure, temperature and diameter range that gate valve uses are very big, and gate valve has advantages such as fluid resistance is little, keying is laborsaving, media flow is unrestricted and is widely used, in especially applying to, large diameter pipeline.
Existing gate valve generally comprises valve body, is provided with the fluid passage of flowing through for medium fluid in the valve body, is provided with in the fluid passage for the flashboard of opening or closing the fluid passage, be connected with the valve rod that drives flashboard on the flashboard, the side that valve rod deviates from flashboard passes valve body, and at the valve rod traversing through end follower and valve gap is set, the packing seal poor performance, after long-term the use, it is in small, broken bits that filler can become, loosening, poor durability, and the gate valve structure complexity of this structure has increased processing cost.
Summary of the invention
The purpose of this utility model is: at the deficiencies in the prior art, the utility model provides the gate valve of a kind of sealability height, band elastic packing piece durable, simple in structure.
A kind of gate valve with the elastic packing piece, comprise valve body, be provided with fluid passage and valve stem passage in the described valve body, be provided with the flashboard of opening or closing the fluid passage in the fluid passage, be connected with valve rod on the described flashboard, described valve rod is arranged in the valve stem passage, described valve rod is towards the direction extension that deviates from flashboard and pass valve body, the valve stem passage of described valve body is provided with elastic packing piece and valve gap in the side that valve rod passes, described elastic packing piece and valve gap are set on the valve rod along the valve rod bearing of trend successively, described elastic packing piece cooperates with described valve rod motive sealing, and described valve gap is fixedlyed connected by the mode that is threaded with the madial wall of valve stem passage.
As preferably, the side that described elastic packing piece deviates from valve gap is conical surface, the thickness of described elastic packing piece by the valve rod central direction to reducing gradually outward.After adopting above-mentioned preferred version, the elastic packing piece is set in the side on the valve rod owing to adopt motive sealing with valve rod, easily in these position wearing and tearing, of the present utility model is set the working life that can increase sealing block.
As preferably, described valve stem passage is provided with boss away from the madial wall of a side of flashboard, and described elastic packing piece and valve gap are arranged on the boss.After adopting above-mentioned preferred version, only need process the installation that boss can carry out valve gap and elastic packing piece in valve stem passage, structure is simpler, processing, easier for installation.
As preferably, described flashboard is wedge shape, and a side of flashboard is the flashboard plane of inclination, and the thickness of flashboard is reduced towards the flashboard direction gradually by valve rod, and the corresponding side in described fluid passage and flashboard plane of inclination is provided with and corresponding valve body plane of inclination, flashboard plane of inclination.After adopting above-mentioned preferred version, it is less that flashboard deviates from the thickness of a side of valve rod, when closing flashboard, flashboard is downward, and forming extruding with the sidewall of fluid passage, the sidewall of fluid passage reacts on the flashboard, can make the better tightness of flashboard and fluid passage.
As preferably, the side that described flashboard deviates from the flashboard plane of inclination is the straight plane of flashboard, and the corresponding side in the straight plane of described fluid passage and flashboard is provided with annular protrusions.After adopting above-mentioned preferred incidence of criminal offenses, annular protrusions is when the fluid-encapsulated passage of flashboard, and the straight plane of annulus and flashboard mutual extrusion has improved sealing, and being convenient to processing and repairing of annular protrusions, and can improve the serviceability of gate valve.
As preferably, described flashboard adopts the mode of screw thread to fixedly connected with described valve rod.After adopting above-mentioned preferred version, the dismounting of flashboard and valve rod is convenient, personnel inspection maintenance easy to use, and flashboard and valve rod is fixing more firm simultaneously.
As preferably, described valve rod extending end passes valve gap and is provided with the operation handwheel in the end.After adopting above-mentioned preferred version, the manually opened or closing gate valve of personnel easy to use.
The gate valve of band elastic packing piece of the present utility model adopts elastic packing piece seal gate valve valve rod, saved the component such as follower, Gland, filler of traditional gate valve, structure is simpler, and the crocking resistance of elastic sealed body is better, durability is higher, longer service life.
Description of drawings
Fig. 1 is the utility model embodiment's structural representation.
Embodiment
As shown in Figure 1, embodiment of the present utility model specifically is a kind of gate valve with the elastic packing piece, comprise valve body 1, be provided with fluid passage 11 and valve stem passage 12 in the valve body 1, be provided with the flashboard 2 of opening or closing fluid passage 11 in the fluid passage 11, be connected with valve rod 3 on the flashboard 2, valve rod 3 is arranged in the valve stem passage 12, valve rod 3 is towards the direction extension that deviates from flashboard 2 and pass valve body 1, the side that the valve stem passage 12 of valve body 1 passes at valve rod 3 is provided with elastic packing piece 4 and valve gap 5, elastic packing piece 4 and valve gap 5 are set on the valve rod 3 successively along valve rod 3 bearing of trends, and elastic packing piece 4 cooperates with valve rod 3 motive sealings.Valve gap 5 is fixedlyed connected by the mode that is threaded with the madial wall of valve stem passage 12.Valve rod 3 extending ends pass valve gap 5 and are provided with operation handwheel 6 in the end.
The side that elastic packing piece 4 deviates from valve gap 5 is conical surface 41, and the thickness of elastic packing piece 4 is extremely reduced outward gradually by valve rod 3 central directions.Valve stem passage 12 is provided with boss 121 away from the madial wall of a side of flashboard 2, and elastic packing piece 4 and valve gap are arranged on the boss 121.
Flashboard 2 is wedge shape, and a side of flashboard 2 is flashboard plane of inclination 21, and the thickness of flashboard 2 is reduced towards flashboard 2 directions gradually by valve rod 3, and fluid passage 11 is provided with and 21 corresponding valve body plane of inclination 13, flashboard plane of inclination with flashboard plane of inclination 21 corresponding sides.The side that flashboard 2 deviates from flashboard plane of inclination 21 is the straight plane 22 of flashboard, and fluid passage 11 is provided with annular protrusions 14 with the straight plane of flashboard 22 corresponding sides.Flashboard 2 adopts the mode of screw thread to fixedly connected with valve rod 3.
The working principle of the working principle of the gate valve of band sealing block of the present utility model and the gate valve of prior art is basic identical, and difference is: of the present utility model with the traditional packing seal of elastic packing piece 4 replacements, sealability is better, and is more durable.
Claims (7)
1. gate valve with the elastic packing piece, comprise valve body, be provided with fluid passage and valve stem passage in the described valve body, be provided with the flashboard of opening or closing the fluid passage in the fluid passage, be connected with valve rod on the described flashboard, described valve rod is arranged in the valve stem passage, described valve rod is towards the direction extension that deviates from flashboard and pass valve body, it is characterized in that: the valve stem passage of described valve body is provided with elastic packing piece and valve gap in the side that valve rod passes, described elastic packing piece and valve gap are set on the valve rod along the valve rod bearing of trend successively, described elastic packing piece cooperates with described valve rod motive sealing, and described valve gap is fixedlyed connected by the mode that is threaded with the madial wall of valve stem passage.
2. the gate valve of band elastic packing piece according to claim 1, it is characterized in that: the side that described elastic packing piece deviates from valve gap is conical surface, the thickness of described elastic packing piece by the valve rod central direction to reducing gradually outward.
3. the gate valve of band elastic packing piece according to claim 1 and 2, it is characterized in that: described valve stem passage is provided with boss away from the madial wall of a side of flashboard, and described elastic packing piece and valve gap are arranged on the boss.
4. the gate valve of band elastic packing piece according to claim 1, it is characterized in that: described flashboard is wedge shape, one side of flashboard is the flashboard plane of inclination, the thickness of flashboard is reduced towards the flashboard direction gradually by valve rod, and the corresponding side in described fluid passage and flashboard plane of inclination is provided with and corresponding valve body plane of inclination, flashboard plane of inclination.
5. the gate valve of band elastic packing piece according to claim 4, it is characterized in that: the side that described flashboard deviates from the flashboard plane of inclination is the straight plane of flashboard, and the corresponding side in the straight plane of described fluid passage and flashboard is provided with annular protrusions.
6. according to the gate valve of claim 1 or 4 or 5 described band elastic packing pieces, it is characterized in that: described flashboard adopts the mode of screw thread to fixedly connected with described valve rod.
7. the gate valve of band elastic packing piece according to claim 1 is characterized in that: described valve rod extending end passes valve gap and is provided with the operation handwheel in the end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061972 CN203067918U (en) | 2013-01-30 | 2013-01-30 | Gate valve with elastic sealing block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320061972 CN203067918U (en) | 2013-01-30 | 2013-01-30 | Gate valve with elastic sealing block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067918U true CN203067918U (en) | 2013-07-17 |
Family
ID=48766702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320061972 Expired - Fee Related CN203067918U (en) | 2013-01-30 | 2013-01-30 | Gate valve with elastic sealing block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067918U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120672A (en) * | 2020-01-21 | 2020-05-08 | 石家庄耐斯特机械阀业有限公司 | Special valve for under-pressure hole opening |
-
2013
- 2013-01-30 CN CN 201320061972 patent/CN203067918U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120672A (en) * | 2020-01-21 | 2020-05-08 | 石家庄耐斯特机械阀业有限公司 | Special valve for under-pressure hole opening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20140130 |