CN203532825U - Grease-seal differential pressure brake valve - Google Patents
Grease-seal differential pressure brake valve Download PDFInfo
- Publication number
- CN203532825U CN203532825U CN201320641069.3U CN201320641069U CN203532825U CN 203532825 U CN203532825 U CN 203532825U CN 201320641069 U CN201320641069 U CN 201320641069U CN 203532825 U CN203532825 U CN 203532825U
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- CN
- China
- Prior art keywords
- differential pressure
- valve
- seal differential
- grease
- flashboard
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- 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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- Indication Of The Valve Opening Or Closing Status (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a grease-seal differential pressure brake valve. The grease-seal differential pressure brake valve comprises a valve seat, a wedge disc and a cover; the cover is provided with a vertical hole, a thrust bearing is arranged in the vertical hole and penetrates through a stem nut, the upper end of a valve rod penetrates through the stem nut and extends to the position above the stem nut, and a rotating part used for driving the stem nut to rotate is arranged outside the stem nut. The grease-seal differential pressure brake valve is characterized by further comprising an instruction part which is arranged on the rotating part and used for instructing the opening degree of the wedge disc according to the distance of the valve rod ascending and descending relative to the instruction part. As the instruction part is arranged on the grease-seal differential pressure brake valve, an operator can judge the opening degree of the wedge disc according to the position of the valve rod ascending and descending relative to the instruction part, misoperation is effectively avoided, and the service life of the valve is prolonged. Furthermore, a contact sealing surface between the valve seat and the wedge disc is provided with an annular grease groove which produces grease with differential pressure when the wedge disc is closed, and a further airtight effect is achieved.
Description
Technical field
The utility model relates to a kind of valve, specifically, relates in particular to a kind of oil seal differential pressure gate valve.
Background technique
A kind of oil seal differential pressure gate valve is disclosed in prior art, it has valve body 101, in valve body 101, establish flashboard 102 and valve seat 103, flashboard 102 coordinates formation opening-closing structure with valve seat 103, valve gap 105 is established on valve body 101 tops, valve gap 105 is established valve rod hole, valve rod 104 is located at valve rod hole, valve rod 104 lower ends are connected with flashboard 102, at valve rod hole top, establish deep gouge, in deep gouge and be positioned at valve rod and valve cover chamber is established filler 106, filler 106 is Expanded graphite, Expanded graphite divides upper strata and lower floor, layer is established spacer ring 107 with interlayer, at valve gap and be positioned at the through hole that spacer ring side is established lateral arrangement, in through hole ingress, establish grease pouring valve assembly 118, at deep gouge oral area, establish for compressing the Gland 117 of Expanded graphite, above valve gap, establish the lid 200 being fixedly connected with valve gap, lid 200 is established the vertical core coaxial with valve rod hole, in vertical core, establish thrust-bearing 109, thrust-bearing wears Stem Mut 116, valve rod is through Stem Mut and extend to its top, this Stem Mut peripheral hardware is for making the rotary component of Stem Mut rotation.This technological scheme exists following not enough, the aperture that operator cannot clear and definite flashboard in operating process, and operating process easily produces misoperation, and then causes valve to damage.
Model utility content
The problems referred to above that exist in order to solve prior art, the utility model provides a kind of oil seal differential pressure gate valve that can indicate flashboard aperture.
To achieve these goals, the utility model adopts following technological scheme:
A kind of oil seal differential pressure gate valve, comprise valve seat, flashboard and lid, this lid is established vertical core, in this vertical core, establishes thrust-bearing, and this thrust-bearing wears Stem Mut, valve rod upper end is through Stem Mut and extend to its top, this Stem Mut peripheral hardware, for making the rotary component of Stem Mut rotation, is characterized in that also having instruction unit, it is located at described rotary component, for indicating flashboard aperture according to the distance of the relative instruction unit lifting of valve rod.
Further, described rotary component has:
Operation handwheel, this operation handwheel middle part possesses through hole, and it is arranged in Stem Mut by through hole;
Gland nut, it is arranged in Stem Mut and is positioned at described operation handwheel top.
Further, described instruction unit has:
Divide the riser that is located at both sides;
Be located at the top board at two riser tops, wherein, at least one riser is provided with scale.
Further, described scale is master scale.
Further, when flashboard is during in full-gear, valve rod top pushes against top board.
Further, described valve rod top is provided with sheath.
Further, described valve seat is provided with annular grease groove with the sealing surface that contacts of flashboard.
Compared to existing technology, the utlity model has following advantage:
(1) the utility model arranges after instruction unit on oil seal differential pressure gate valve, operator can be according to valve rod the aperture situation with respect to the relative position judgement flashboard of instruction unit lifting, effectively avoid misoperation, extend valve working life.
(2) the utility model valve seat is provided with annular grease groove with the sealing surface that contacts of flashboard, produces differential pressure grease and play tighter effect when closing.
Accompanying drawing explanation
Fig. 1 is oil seal differential pressure gate valve structure schematic diagram.
Fig. 2 is lid place enlarged view.
Fig. 3 is flashboard and valve seat place enlarged view, the figure shows the annular grease groove at valve seat and flashboard sealing surface place.
In figure, 101-valve body, 102-flashboard, 103-valve seat, 104-valve rod, 105-valve gap, 106-filler, 107-spacer ring, 108-lubricating cup, 109-thrust-bearing, 110-bearing gland, 111-operates handwheel, 112-sheath, 113-instruction unit, 114-acorn nut, 115-gland nut, 116-Stem Mut, 117-Gland, 118-grease pouring valve assembly, 200-lid.
Embodiment
Fig. 1-3 show a kind of preferably implementation, a kind of oil seal differential pressure gate valve, comprise valve seat 103, flashboard 102 and lid 200, this lid 200 is established the vertical core coaxial with valve rod hole, in this vertical core, establish thrust-bearing 109, this thrust-bearing 109 wears Stem Mut 116, valve rod 104 upper ends are through Stem Mut 116 and extend to its top, sheath 112 is established at valve rod 104 tops, these Stem Mut 116 peripheral hardware operation handwheels 111, these operation handwheel 111 middle parts possess through hole, it is to be arranged in Stem Mut 116 by through hole, Stem Mut 116 and be positioned at described operation handwheel 111 tops and establish gland nut 115, on gland nut 115, both sides are set up a riser separately, top board is established at two riser tops, on the whole, this instruction unit 113 is roughly down " U " font, in riser outside, all establish master scale, when flashboard is during in full-gear, valve rod top pushes against top board.
Scale is determined according to flashboard aperture situation, example is as follows: when flashboard is closed, and first scale (beginning scale) of valve rod top corresponding (horizontal projection at valve rod top, lower same) instruction unit, after flashboard standard-sized sheet, second scale (whole scale) of the corresponding instruction unit in valve rod top.Between first, second scale, establish master scale, thus operator can be according to valve rod top the position with respect to instruction unit, the aperture situation of judgement flashboard.
In rotary manipulation handwheel process; valve rod produces motion up or down, and when flashboard is in closed state, valve rod top is corresponding with instruction unit the first scale; when flashboard is in opening state (standard-sized sheet); valve rod top is corresponding with the second scale, therefore for operator, can carry out quantization operation to the switching of flashboard; convenient and swift; simultaneously can be because misoperation produces the problem of damaging valve, meanwhile, the sheath at valve rod top also effective Protective valve bar is not damaged.
It should be noted that, rotary component, except the mode in embodiment, can also have other mapping modes, this does not describe in detail one by one, if its object reaching identical all can, instruction unit can also have different implementations, for example on rotary component, establish a riser, on riser, establish master scale.
Scale, except master scale, also can adopt other scale forms, for example, the first scale (beginning scale is only shown in instruction unit, represent flashboard closed state), the second scale (middle scale, represent flashboard half-open position), the 3rd scale (whole scale represents flashboard full-gear), etc.
Valve rod is with respect to the reference by location of instruction unit, and except selector valve masthead portion, other extend to any position of Stem Mut top also can to select valve rod.
Valve seat is provided with annular grease groove with the sealing surface that contacts of flashboard, produces differential pressure grease and play tighter effect when closing.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (7)
1. an oil seal differential pressure gate valve, comprise valve seat, flashboard and lid, this lid is established vertical core, in this vertical core, establishes thrust-bearing, and this thrust-bearing wears Stem Mut, valve rod upper end is through Stem Mut and extend to its top, this Stem Mut peripheral hardware, for making the rotary component of Stem Mut rotation, is characterized in that also having instruction unit, it is located at described rotary component, for indicating flashboard aperture according to the distance of the relative instruction unit lifting of valve rod.
2. oil seal differential pressure gate valve according to claim 1, is characterized in that, described rotary component has:
Operation handwheel, this operation handwheel middle part possesses through hole, and it is arranged in Stem Mut by through hole;
Gland nut, it is arranged in Stem Mut and is positioned at described operation handwheel top.
3. oil seal differential pressure gate valve according to claim 1, is characterized in that, described instruction unit has:
Divide the riser that is located at both sides;
Be located at the top board at two riser tops, wherein, at least one riser is provided with scale.
4. oil seal differential pressure gate valve according to claim 3, is characterized in that, described scale is master scale.
5. oil seal differential pressure gate valve according to claim 4, is characterized in that, when flashboard is during in full-gear, valve rod top pushes against top board.
6. according to the oil seal differential pressure gate valve described in claim 1 or 2 or 4, it is characterized in that, described valve rod top is provided with sheath.
7. oil seal differential pressure gate valve according to claim 6, is characterized in that, described valve seat is provided with annular grease groove with the sealing surface that contacts of flashboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641069.3U CN203532825U (en) | 2013-10-17 | 2013-10-17 | Grease-seal differential pressure brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320641069.3U CN203532825U (en) | 2013-10-17 | 2013-10-17 | Grease-seal differential pressure brake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532825U true CN203532825U (en) | 2014-04-09 |
Family
ID=50419034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320641069.3U Expired - Fee Related CN203532825U (en) | 2013-10-17 | 2013-10-17 | Grease-seal differential pressure brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061338A (en) * | 2014-07-05 | 2014-09-24 | 郑子林 | Fine-tuning sealing brake valve |
| CN110530436A (en) * | 2018-05-23 | 2019-12-03 | 中国石油天然气股份有限公司 | Differential pressure type metering device, flow metering method and device and storage medium |
-
2013
- 2013-10-17 CN CN201320641069.3U patent/CN203532825U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061338A (en) * | 2014-07-05 | 2014-09-24 | 郑子林 | Fine-tuning sealing brake valve |
| CN104061338B (en) * | 2014-07-05 | 2016-06-01 | 郑子林 | Sealing fine adjustment type gate valve |
| CN110530436A (en) * | 2018-05-23 | 2019-12-03 | 中国石油天然气股份有限公司 | Differential pressure type metering device, flow metering method and device and storage medium |
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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: 20140409 Termination date: 20181017 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |