CN206723463U - Integral type is without bonnet throttling stop valve - Google Patents
Integral type is without bonnet throttling stop valve Download PDFInfo
- Publication number
- CN206723463U CN206723463U CN201720559687.1U CN201720559687U CN206723463U CN 206723463 U CN206723463 U CN 206723463U CN 201720559687 U CN201720559687 U CN 201720559687U CN 206723463 U CN206723463 U CN 206723463U
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- Prior art keywords
- valve
- filler
- integral type
- bonnet
- valve body
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Abstract
The utility model discloses a kind of integral type without bonnet throttling stop valve, including valve body, valve seat, valve rod, flap and stuffing seal phase, support is fixed with valve body, the end of support is rotatablely equipped with valve stem nut, valve stem nut is axially positioned on the support, valve stem nut is connected with threaded stem, and valve stem nut end is fixed with handwheel.Valve body central cavity internal thread is connected with key set, and key set is connected with valve rod feather key, to stem guiding and prevents valve rod from rotating.Flap is provided with parabola shaped throttling body, and the regulation to rate-of flow can be achieved；The sealing surface of flap and valve seat is taper, strengthens sealing.The utility model be integral type without valve cover structure, sealing leak can be avoided, be easy to Maintenance and Repair；Valve rod does not rotate with hand wheel rotating, makees purely axial motion in key set, filler by any rotation radial load, is not ensure that the sealing of filler, is extended its service life.
Description
Technical field
The utility model belongs to stop valve technical field, more particularly to a kind of integral type without bonnet throttling stop valve.
Background technology
Current most of stop valves are all to have valve cover structure, are typically connected by screw bolts valve cover structure, pressure energized seal
Valve cover structure, or threaded connection plus sealing welding valve cover structure, these three structures, which all have valve body and are connected sealing with bonnet, lets out
The problem of dew, it is not easy to safeguard and changes.
The switching motion of stop valve is realized by the relative motion of drive device or handwheel, valve rod and valve stem nut
, generally use handwheel is fixed with valve rod, and during rotation hand wheel, valve rod also and then rotates and moved up and down, although simple in construction,
But valve rod rotation can make filler can not be ensured packing seal and service life by rotation radial load.
Utility model content
The utility model is intended to overcome above-mentioned the deficiencies in the prior art, it is proposed that a kind of integral type throttles without bonnet
Stop valve, the stop valve are integral type, it can be ensured that without leakage, and can ensure that valve rod only does purely axial motion, prevent filler by
Rotate radial load, it is ensured that packing seal and service life.
Technical scheme is used by the utility model solves its technical problem：Integral type includes valve without bonnet throttle check
Body and valve rod, heap is welded with valve seat on the valve body, and the head of the valve rod is connected with flap；The valve body is provided with to the valve
Bar provides airtight and watertight padding sealing device, and the stuffing seal includes filler, filler spacer ring and gland, the filler
Gland is anchored on the valve body by bolt assembly, and the filler is pressed in the valve interior wall by the gland；
The valve body is provided with support, and the end of the support is rotatablely equipped with valve stem nut, the valve stem nut axial direction
The support is positioned at, the valve stem nut is connected with the threaded stem, and the valve stem nut end is fixed with handwheel；It is described
Valve body central cavity internal thread is connected with key set, and the key set is connected with the valve rod feather key.
Further, the filler is squeezed in the end face of the key set by Packing seat and sealing gasket.
Further, the end of the key set is connected with upper seal support, and the upper seal support axially relies on the valve body
Inwall.
Further, the flap head is provided with parabola shaped throttling body, and the sealing surface of the flap and the valve seat is
Taper, and be mutually adapted.
Further, the valve body is provided with greasing plug screw, the oil-through-hole of the filler spacer ring and the greasing plug screw position
It is corresponding.
Further, the gland includes hold-down grid and filler pressing sleeve, and the filler pressing sleeve is split two-piece type, institute
State hold-down grid and the filler is compressed by the bolt assembly.
Further, the valve rod afterbody is provided with transparent protective shield, is carved with the transparent protective shield and opens and closes position groove.
The beneficial effects of the utility model are：
Valve body is integral type, it can be ensured that without leakage；According to the relative motion mode of handwheel, valve rod and valve stem nut, by hand
Wheel is fixed on valve stem nut, and axial restraint valve stem nut makes it rotate, while valve rod passes through feather key with key set
Connection, to stem guiding and prevents valve rod from rotating, and ensures that valve rod makees purely axial motion in key set；So that filler is not taken office
What rotation radial load, ensure that the sealing of filler, extend its service life.
Brief description of the drawings
Fig. 1 is structural representation of the utility model integral type without bonnet throttling stop valve embodiment；
In figure：1- valve bodies, 11- valve seats, 12- supports, 13- upper seal supports, 14- key sets, 15- fillers, 16- filler spacer rings,
161- greasing plug screws, 17- filler pressing sleeves, 18- hold-down grids, 19- bolt assemblies, 2- valve rods, 21- transparent protective shields, 3- flaps,
The parabola shaped throttling bodies of 31-, 4- valve stem nuts, 5- handwheels.
Embodiment
The utility model is described in further detail with reference to accompanying drawing.
As shown in figure 1, integral type includes valve body 1 and valve rod 2 without bonnet throttle check, heap is welded with valve seat 11, valve on valve body 1
The head of bar 2 is connected with flap 3, is machined with annular half slot at valve rod 2 and the cooperation of flap 3, is connected, held by stainless steel wire
Axial force when being opened between by valve rod 2 and flap 3, prevents flap 3 from being disengaged with valve rod 2；Valve rod 2 and the bottom of flap 3 are using four directions
Connection, it is ensured that after unlatching, under the impact of medium flow field, flap 3 does not rotate, and avoids the abrasion of flap 3.Between flap 3 and valve body 1
Form total travel to be oriented to, it is ensured that the accurate contact sealing of sealing pair.The transparent guarantor for opening and closing position groove is carved with the installation of the afterbody of valve rod 2
Shield 21, the keying position of valve 1 is may indicate that, valve rod 2 can be protected again, prevent dust, dust etc. from entering the screw thread of valve rod 2.Valve
The sealing surface of valve 3 and valve seat 11 is taper, and is mutually adapted, and strengthens sealing.The head of flap 3 is provided with parabola shaped throttling body
31, the regulation to rate-of flow can be achieved.
Valve body 1 is provided with support 12, and the end of support 12 is rotatablely equipped with valve stem nut 4, and valve stem nut 4 is axially positioned on
Support 12, valve stem nut 4 are threadedly coupled with valve rod 2, and the end of valve stem nut 4 is fixed with handwheel 5.The central cavity internal thread of valve body 1
Key set 14 is connected with, key set 14 is connected with the feather key of valve rod 2.Valve rod 2 is oriented to and prevents valve rod 2 from rotating, ensures valve rod 2 in key set
Make purely axial motion in 14；So that filler 15 ensure that the sealing of filler 15 not by any rotation radial load, extend
Its service life.
Valve body 1 is provided with provides airtight and watertight padding sealing device to valve rod 2, and stuffing seal includes filler 15, filler
Spacer ring 16 and gland.The oil-through-hole of filler spacer ring 16 is corresponding with the position of greasing plug screw 161 for being installed on valve body 1；Filler
Gland includes hold-down grid 18 and filler pressing sleeve 17, and gland is anchored on valve body 1 by bolt assembly 19, and gland will be filled out
Material 15 is pressed in the inwall of valve body 1.Filler pressing sleeve 17 is split two-piece type, is easily installed；Hold-down grid 18 passes through bolt assembly 19
Compress filler 15.Filler 15 by Packing seat and sealing gasket be squeezed in key set 14 end face, key set 14 end be connected with it is close
Seat 13 is sealed, upper seal support 13 axially relies on the inwall of valve body 1.
Claims (7)
1. integral type is without bonnet throttling stop valve, including：
Valve body and valve rod, heap is welded with valve seat on the valve body, and the head of the valve rod is connected with flap；The valve body be provided with to
The valve rod provides airtight and watertight padding sealing device, and the stuffing seal includes filler, filler spacer ring and gland, institute
State gland and the valve body is anchored on by bolt assembly, the filler is pressed in the valve body by the gland
Wall；Characterized in that,
The valve body is provided with support, and the end of the support is rotatablely equipped with valve stem nut, the valve stem nut axially position
In the support, the valve stem nut is connected with the threaded stem, and the valve stem nut end is fixed with handwheel；
The valve body central cavity internal thread is connected with key set, and the key set is connected with the valve rod feather key.
2. integral type as claimed in claim 1 is without bonnet throttling stop valve, it is characterised in that the filler by Packing seat and
Sealing gasket is squeezed in the end face of the key set.
3. integral type as claimed in claim 1 is without bonnet throttling stop valve, it is characterised in that the end of the key set is connected with
Upper seal support, the upper seal support axially rely on the inwall of the valve body.
4. integral type as claimed in claim 1 is without bonnet throttling stop valve, it is characterised in that the flap head is provided with parabolic
Linear throttling body, the sealing surface of the flap and the valve seat is taper, and is mutually adapted.
5. integral type as claimed in claim 1 is without bonnet throttling stop valve, it is characterised in that the valve body is provided with greasing spiral shell
Plug, the oil-through-hole of the filler spacer ring are corresponding with the greasing plug screw position.
6. integral type as claimed in claim 1 is without bonnet throttling stop valve, it is characterised in that the gland includes filler
Pressing plate and filler pressing sleeve, the filler pressing sleeve are split two-piece type, and the hold-down grid passes through described in bolt assembly compression
Filler.
7. integral type as claimed in claim 1 is without bonnet throttling stop valve, it is characterised in that the valve rod afterbody is provided with
Bright protective cover, it is carved with the transparent protective shield and opens and closes position groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720559687.1U CN206723463U (en) | 2017-05-18 | 2017-05-18 | Integral type is without bonnet throttling stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720559687.1U CN206723463U (en) | 2017-05-18 | 2017-05-18 | Integral type is without bonnet throttling stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206723463U true CN206723463U (en) | 2017-12-08 |
Family
ID=60513580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720559687.1U Active CN206723463U (en) | 2017-05-18 | 2017-05-18 | Integral type is without bonnet throttling stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206723463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623250A (en) * | 2022-03-20 | 2022-06-14 | 东北石油大学 | Conveniently-cleaned anti-blocking throttle valve |
-
2017
- 2017-05-18 CN CN201720559687.1U patent/CN206723463U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114623250A (en) * | 2022-03-20 | 2022-06-14 | 东北石油大学 | Conveniently-cleaned anti-blocking throttle valve |
| CN114623250B (en) * | 2022-03-20 | 2023-04-25 | 东北石油大学 | Anti-blocking throttle valve convenient to clean |
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