CN211009928U - Ultrahigh pressure self-pressing sealing forged steel stop valve - Google Patents
Ultrahigh pressure self-pressing sealing forged steel stop valve Download PDFInfo
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- CN211009928U CN211009928U CN201921951198.6U CN201921951198U CN211009928U CN 211009928 U CN211009928 U CN 211009928U CN 201921951198 U CN201921951198 U CN 201921951198U CN 211009928 U CN211009928 U CN 211009928U
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- 238000007789 sealing Methods 0.000 title claims abstract description 78
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 11
- 239000010959 steel Substances 0.000 title claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000012856 packing Methods 0.000 claims description 24
- 125000006850 spacer group Chemical group 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of stop valves, in particular to an ultrahigh pressure self-pressing sealing forged steel stop valve, which comprises a stop valve body, a connecting mechanism and an operating mechanism, wherein the stop valve body comprises a valve body, a valve clack and a valve rod, the valve clack is installed in the valve body in a matching way, the valve rod extends into the valve body and is connected with the valve clack, the operating mechanism comprises a hand wheel, an installation seat, a thrust bearing, a valve rod nut and a reverse splint, the installation seat comprises a supporting ring and a supporting rod, the supporting ring is connected with the hand wheel in a matching way, the reverse splint comprises two mutually matched clamping blocks, the connecting mechanism comprises a valve cover, a pressing plate, a sealing mechanism, a movable joint bolt, a fixing nut and a butterfly spring, the valve cover is fixed on the valve body in a threaded way, the lower end of the supporting rod is fixed on the valve cover, long service life, and can improve the autogenous pressure seal stop valve of result of use.
Description
Technical Field
The utility model relates to a stop valve technical field, specific field is a sealed forged steel stop valve of superhigh pressure autogenous pressure.
Background
The valves on the pipelines are various, wherein the stop valve is a commonly used valve for controlling the cut-off or flow regulation of various flowing media such as air, water, steam and the like, the opening and closing part of the stop valve is a plug-shaped valve plate, the sealing surface is a plane or a conical surface, and the valve plate moves linearly along with the lifting of the valve rod. The existing stop valve mainly comprises a valve body, a valve cover, a valve rod and a valve plate, wherein a sealing gasket is arranged between the valve plate and the valve body and used for sealing a medium and avoiding the leakage of the medium along a gap between the valve plate and the valve body, but because the flowing medium in the valve often has higher pressure and the pressure generally acts on the sealing gasket and the valve plate and the joint between the sealing gasket and the valve body, the excessively high pressure of the flowing medium can form a separation effect on a sealing joint surface, so that the sealing joint surface tends to generate a gap, the flowing medium is easy to permeate outwards through the sealing joint surface, and the sealing performance is further influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an superhigh pressure is from pressure seal forged steel stop valve to solve among the prior art stop valve and cause the problem that the infiltration leaked because of the overpressure.
In order to achieve the above object, the utility model provides a following technical scheme: an ultrahigh pressure self-pressing sealed forged steel stop valve comprises a stop valve body, a connecting mechanism and an operating mechanism,
the stop valve body comprises a valve body, a valve clack and a valve rod, the valve clack is arranged in the valve body in a matching way, the valve rod extends into the valve body and is connected with the valve clack,
the operating mechanism comprises a hand wheel, a mounting seat, a thrust bearing, a valve rod nut and a reverse clamping plate, the hand wheel is rotatably mounted on the mounting seat through the thrust bearing, the valve rod nut is positioned in the thrust bearing, the valve rod nut is fixedly mounted at the center of the hand wheel, the mounting seat is connected with the valve body in a matching way, the upper end of the valve rod is arranged in a threaded way, the upper end of the valve rod penetrates through the mounting seat to be matched with the valve rod nut in a threaded way, the reverse clamping plate is mounted on the mounting seat, the reverse clamping plate is connected with the upper part of the valve rod on,
the mounting seat comprises a support ring and two support rods, the support ring is connected with the hand wheel in a matching way, the upper end of the support rod is connected with the support ring, the lower end of the support rod is fixedly connected with the connecting mechanism, the two support rods are symmetrically arranged on the support ring, the opposite surfaces of the two support rods are respectively and vertically provided with a fixed block, the reverse clamping plate comprises two clamping blocks which are matched with each other, the central parts of the two matched clamping blocks are arranged in a through hole for the valve rod to penetrate through, the two ends of the two matched clamping blocks are arranged in a limit groove matched with the corresponding fixed block,
the connecting mechanism comprises a valve cover, a pressing plate, a sealing mechanism, an eyelet bolt, a fixing nut and a belleville spring, the valve cover is fixed on the valve body in a threaded mode, the lower end of the supporting rod is fixed on the valve cover, the sealing mechanism is arranged between the valve cover and the valve rod, the lower end of the sealing mechanism abuts against the sealed valve body, the upper end of the sealing mechanism abuts against the pressing plate, the eyelet bolt is connected between the valve cover and the pressing plate and is fastened through the fixing nut, the belleville spring is arranged on the eyelet bolt and abuts against the fixing nut,
the sealing mechanism comprises a packing box, a sealing ring, a filler, a spacer ring and a pressing sleeve, the packing box is arranged between the valve rod and the valve cover, the sealing ring is arranged at the lower end of the packing box, the sealing ring is arranged outside the packing box in a sealing mode, the spacer ring is arranged between the packing box and the valve rod, the filler is arranged at the upper end and the lower end of the spacer ring, the pressing sleeve is located above the filler at the upper end of the spacer ring, the pressing plate is abutted to the pressing sleeve, and the pressing sleeve is abutted to the filler at the position.
Preferably, the cross section of the sealing ring is arranged in a right-angled triangle shape, the triangular inclined plane of the sealing ring is the inner side surface of the sealing ring, the inner inclined plane of the sealing ring is in sealing contact with the stuffing box, the outer vertical surface of the sealing ring is in sealing contact with the valve body, and the upper end plane of the sealing ring is in sealing contact with the lower end of the valve cover.
Preferably, the upper end of the stuffing box is located outside the valve cover, the upper end of the stuffing box is provided with a locking nut, the locking nut is in threaded connection with the upper end of the stuffing box, and the locking nut is abutted against the valve cover.
Preferably, the two clamping blocks are connected through the hexagon socket head cap screw in a fastening mode.
Compared with the prior art, the beneficial effects of the utility model are that: the gap between the valve rod and the valve cover can be sealed through the arrangement of the packing box, the spacer ring and the packing, the arrangement of the packing at the two ends of the spacer ring can carry out secondary sealing between the valve rod and the valve cover, so that the sealing between the valve rod and the valve cover is further improved, the damage caused by the movement of the valve rod at the valve cover can be reduced, the lead screw connection is adopted between the hand wheel and the valve rod, the rotation of the hand wheel can lead the valve rod to move up and down in the valve body through the lead screw action, and drive the flashboard to be opened or closed, the stress action of the rotation of the hand wheel can be reduced through the arrangement of the bearing, the sealing effect between the packing box and the valve body can be improved through the arrangement of the sealing ring, the sealing effect between the valve cover and the valve body can be further improved, the stress action of the rotation of the hand wheel can be reduced through the arrangement, can improve the sealed effect between gland packing and the valve body, and further improve the sealed effect between valve gap and the valve body, through belleville spring's setting, can improve the bolt connectivity of coupling mechanism department, avoid long-time use of gate valve to cause coupling mechanism not hard up, make the gate valve the condition that the leakproofness reduces appear, through the setting of reversal splint, can accomplish the back at the adjusting valve rod, press from both sides tight operation through reversal splint to the valve rod, in the stop valve use has been avoided, the contra-rotation's condition appears in the valve rod.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial structure of the reverse splint of the present invention;
in the figure: 1. a valve body; 2. a valve flap; 3. a valve stem; 4. a hand wheel; 5. a thrust bearing; 6. a valve stem nut; 7. reversing the splint; 8. a support ring; 9. a support bar; 10. a valve cover; 11. pressing a plate; 12. an eye bolt; 13. fixing a nut; 14. a belleville spring; 15. a stuffing box; 16. a seal ring; 17. a filler; 18. a spacer ring; 19. pressing the sleeve; 20. locking the nut; 21. and (4) an inner hexagon bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution: an ultrahigh pressure self-pressing sealed forged steel stop valve comprises a stop valve body, a connecting mechanism and an operating mechanism,
the stop valve body comprises a valve body 1, a valve clack 2 and a valve rod 3, the valve clack 2 is installed in the valve body 1 in a matching way, the valve rod 3 extends into the valve body 1 and is connected with the valve clack 2,
the operating mechanism comprises a hand wheel 4, a mounting seat, a thrust bearing 5, a valve rod nut 6 and a reverse clamping plate 7, the hand wheel 4 is rotatably mounted on the mounting seat through the thrust bearing 5, the valve rod nut 6 is positioned in the thrust bearing 5, the valve rod nut 6 is fixedly mounted at the center of the hand wheel 4, the mounting seat is connected with the valve body 1 in a matching way, the upper end of the valve rod 3 is arranged in a threaded way, the upper end of the valve rod 3 penetrates through the mounting seat to be matched with the valve rod nut 6 in a threaded way, the reverse clamping plate 7 is mounted on the mounting seat, the reverse clamping plate 7 is connected with the upper part of the valve rod 3 on,
the mounting seat comprises a support ring 8 and two support rods 9, the support ring 8 is connected with a hand wheel 4 in a matching way, the upper end of the support rod 9 is connected with the support ring 8, the lower end of the support rod 9 is fixedly connected with a connecting mechanism, the two support rods 9 are symmetrically arranged on the support ring 8, fixing blocks are respectively and vertically arranged on the opposite surfaces of the two support rods 9, the reverse clamping plate 7 comprises two clamping blocks which are mutually matched, the central parts of the two matched clamping blocks are arranged in a through hole for the valve rod 3 to penetrate through, the two ends of the two matched clamping blocks are arranged in a limiting groove matched with the corresponding fixing blocks,
the connecting mechanism comprises a valve cover 10, a pressing plate 11, a sealing mechanism, an eyelet bolt 12, a fixing bolt 13 and a butterfly spring 14, the valve cover 10 is fixed on the valve body 1 in a threaded manner, the lower end of a support rod 9 is fixed on the valve cover 10, the sealing mechanism is arranged between the valve cover 10 and the valve rod 3, the lower end of the sealing mechanism props against the sealing valve body 1, the upper end of the sealing mechanism is pressed against the pressing plate 11, the eyelet bolt 12 is connected between the valve cover 10 and the pressing plate 11 and is fastened by the fixing bolt 13, the butterfly spring 14 is arranged on the eyelet bolt 12 and is pressed against the fixing bolt 13,
the sealing mechanism comprises a packing box 15, a sealing ring 16, packing 17, a spacer ring 18 and a pressing sleeve 19, wherein the packing box 15 is arranged between the valve rod 3 and the valve cover 10, the sealing ring 16 is arranged at the lower end of the packing box 15, the sealing ring 16 is arranged on the outer side of the packing box 15 in a sealing manner, the spacer ring 18 is arranged between the packing box 15 and the valve rod 3, the packing 17 is arranged at the upper end and the lower end of the spacer ring 18, the pressing sleeve 19 is positioned above the packing 17 at the upper end of the spacer ring 18, the pressing plate 11 presses the pressing sleeve 19, and the pressing sleeve 19 presses the packing 17 at the position.
The section of the sealing ring 16 is a right triangle, the triangular inclined plane of the sealing ring 16 is the inner side surface of the sealing ring 16, the inner inclined plane of the sealing ring 16 is in sealing contact with the stuffing box 15, the outer vertical surface of the sealing ring 16 is in sealing contact with the valve body 1, and the upper end plane of the sealing ring 16 is in sealing contact with the lower end of the valve cover 10.
The upper end of the stuffing box 15 is located outside the valve cover 10, the upper end of the stuffing box 15 is provided with a lock nut 20, the lock nut 20 is in threaded connection with the upper end of the stuffing box 15, and the lock nut 20 is abutted against the valve cover 10.
The two clamping blocks are tightly connected through the hexagon socket head cap screw 21.
Through this technical scheme, hand wheel 4 passes through hand wheel 4 nut fixed connection with valve-stem nut 6, and installation support ring 8 between hand wheel 4 and valve-stem nut 6, thrust bearing 5 is installed respectively at the upper and lower both ends of support ring 8 for thrust bearing 5 and the hand wheel 4 contact of upper end, thrust bearing 5 and the valve-stem nut 6 contact of lower extreme, the upper end and the valve-stem nut 6 screw thread screw cooperation of valve rod 3 are connected, support ring 8 is for setting up with the mount pad is integrative, whole mount pad includes support ring 8 and lower part bracing piece 9.
The lower end of the swing bolt 12 is in threaded connection with the valve cover 10, the upper end of the swing bolt 12 is fixed on the pressure plate 11 through the fixing bolt 13, meanwhile, the butterfly spring 14 is sleeved on the swing bolt 12, and the butterfly spring 14 is arranged between the fixing bolt 13 and the pressure plate 11;
the lower extreme of stuffing box 15 is the setting of round platform shape, and the inboard is vertical face setting and valve rod 3 cooperation, and the outside is the inclined plane setting and valve gap 10 cooperation. In the installation process, firstly installing a stuffing box 15 on a valve rod 3 to enable the lower end of the stuffing box 15 to abut against a valve body 1, then placing a sealing ring 16 on the outer side of the lower end of the stuffing box 15, then matching a valve cover 10 with the valve body 1, enabling the lower end of the valve cover 10 to abut against and seal the sealing ring 16, then matching the stuffing box 15 with the valve cover 10 through a locking nut 20 to enable the stuffing box 15, the valve cover 10 and the valve body 1 to be completely sealed, finally sequentially installing a stuffing 17, a spacer ring 18, a stuffing 17 and a pressing sleeve 19 between the stuffing box 15 and the valve rod 3, then pressing a pressing plate 11 against the pressing sleeve 19, and performing pressure locking through a movable joint bolt 12;
the clamp splice central part after two cooperations is the through-hole setting that supplies valve rod 3 to wear to establish, and the clamp splice both ends after two cooperations are and the fixed block complex spacing groove setting that corresponds to, and reverse splint 7 is located bracing piece 9 department, and two clamp splices are after mutually supporting, and middle part through-hole department presss from both sides tightly valve rod 3, and both ends spacing groove department cooperates with the fixed block that corresponds, and is spacing to reverse splint 7.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an ultrahigh pressure is from sealed forged steel stop valve of pressure which characterized in that: comprises a stop valve body, a connecting mechanism and an operating mechanism,
the stop valve body comprises a valve body, a valve clack and a valve rod, the valve clack is arranged in the valve body in a matching way, the valve rod extends into the valve body and is connected with the valve clack,
the operating mechanism comprises a hand wheel, a mounting seat, a thrust bearing, a valve rod nut and a reverse clamping plate, the hand wheel is rotatably mounted on the mounting seat through the thrust bearing, the valve rod nut is positioned in the thrust bearing, the valve rod nut is fixedly mounted at the center of the hand wheel, the mounting seat is connected with the valve body in a matching way, the upper end of the valve rod is arranged in a threaded way, the upper end of the valve rod penetrates through the mounting seat to be matched with the valve rod nut in a threaded way, the reverse clamping plate is mounted on the mounting seat, the reverse clamping plate is connected with the upper part of the valve rod on,
the mounting seat comprises a support ring and two support rods, the support ring is connected with the hand wheel in a matching way, the upper end of the support rod is connected with the support ring, the lower end of the support rod is fixedly connected with the connecting mechanism, the two support rods are symmetrically arranged on the support ring, the opposite surfaces of the two support rods are respectively and vertically provided with a fixed block, the reverse clamping plate comprises two clamping blocks which are matched with each other, the central parts of the two matched clamping blocks are arranged in a through hole for the valve rod to penetrate through, the two ends of the two matched clamping blocks are arranged in a limit groove matched with the corresponding fixed block,
the connecting mechanism comprises a valve cover, a pressing plate, a sealing mechanism, an eyelet bolt, a fixing nut and a belleville spring, the valve cover is fixed on the valve body in a threaded mode, the lower end of the supporting rod is fixed on the valve cover, the sealing mechanism is arranged between the valve cover and the valve rod, the lower end of the sealing mechanism abuts against the sealed valve body, the upper end of the sealing mechanism abuts against the pressing plate, the eyelet bolt is connected between the valve cover and the pressing plate and is fastened through the fixing nut, the belleville spring is arranged on the eyelet bolt and abuts against the fixing nut,
the sealing mechanism comprises a packing box, a sealing ring, a filler, a spacer ring and a pressing sleeve, the packing box is arranged between the valve rod and the valve cover, the sealing ring is arranged at the lower end of the packing box, the sealing ring is arranged outside the packing box in a sealing mode, the spacer ring is arranged between the packing box and the valve rod, the filler is arranged at the upper end and the lower end of the spacer ring, the pressing sleeve is located above the filler at the upper end of the spacer ring, the pressing plate is abutted to the pressing sleeve, and the pressing sleeve is abutted to the filler at the position.
2. The ultrahigh pressure self-pressing sealing forged steel stop valve according to claim 1, characterized in that: the section of the sealing ring is arranged in a right-angled triangle shape, the triangular inclined plane of the sealing ring is the inner side surface of the sealing ring, the inner inclined plane of the sealing ring is in sealing contact with the stuffing box, the outer vertical surface of the sealing ring is in sealing contact with the valve body, and the upper end plane of the sealing ring is in sealing contact with the lower end of the valve cover.
3. The ultrahigh pressure self-pressing sealing forged steel stop valve according to claim 1, characterized in that: the upper end of the stuffing box is located outside the valve cover, the upper end of the stuffing box is provided with a locking nut, the locking nut is in threaded connection with the upper end of the stuffing box, and the locking nut is abutted against the valve cover.
4. The ultrahigh pressure self-pressing sealing forged steel stop valve according to claim 1, characterized in that: the two clamping blocks are fastened and connected through the hexagon socket head cap screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951198.6U CN211009928U (en) | 2019-11-12 | 2019-11-12 | Ultrahigh pressure self-pressing sealing forged steel stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921951198.6U CN211009928U (en) | 2019-11-12 | 2019-11-12 | Ultrahigh pressure self-pressing sealing forged steel stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211009928U true CN211009928U (en) | 2020-07-14 |
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ID=71472132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921951198.6U Active CN211009928U (en) | 2019-11-12 | 2019-11-12 | Ultrahigh pressure self-pressing sealing forged steel stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211009928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306944A (en) * | 2022-09-15 | 2022-11-08 | 黄山市屯阀精密锻造有限公司 | A high pressure self-sealing valve |
-
2019
- 2019-11-12 CN CN201921951198.6U patent/CN211009928U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306944A (en) * | 2022-09-15 | 2022-11-08 | 黄山市屯阀精密锻造有限公司 | A high pressure self-sealing valve |
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