CN221278479U - Ultra-high pressure manual stop valve - Google Patents
Ultra-high pressure manual stop valve Download PDFInfo
- Publication number
- CN221278479U CN221278479U CN202323070644.1U CN202323070644U CN221278479U CN 221278479 U CN221278479 U CN 221278479U CN 202323070644 U CN202323070644 U CN 202323070644U CN 221278479 U CN221278479 U CN 221278479U
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- China
- Prior art keywords
- valve body
- valve
- adjusting screw
- high pressure
- sealing ring
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- 238000007789 sealing Methods 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 230000008676 import Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000462 isostatic pressing Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses an ultrahigh-pressure manual stop valve, which comprises an adjusting screw (5), a press block nut (6), a valve body (7) and a valve core (8), wherein a stepped through hole is axially formed in the valve body (7), a high-pressure liquid inlet (B) is formed in the lower end of the valve body (7), the press block nut (6) is arranged at the upper end of the valve body, the adjusting screw (5) is in threaded connection with the press block nut (6), the lower end of the adjusting screw (5) extends out of the press block nut (6) to be connected with the top end of the valve core (8), a cone angle is formed at the bottom end of the valve core (8), a conical surface is formed on the stepped surface of the valve body (7), the cone angle is contacted with the conical surface to form a conical surface hard seal, a ring groove is formed in the radial direction of the valve core (8), a combined sealing ring which forms a seal with the valve body (7) is arranged in the ring groove, a radial hole I is formed in one side of the valve body (7), and a high-pressure liquid outlet (A) is formed in the radial hole I. The valve core (8) and the valve body (7) are driven to be closed or opened through rotation of the hand wheel, and the sealing structure is reliable and simple and has good operability.
Description
Technical Field
The utility model relates to an ultra-high pressure manual stop valve, in particular to an ultra-high pressure manual stop valve with opening induction, which is applied to a large ultra-high pressure isostatic pressing machine hydraulic system with the highest pressure of 300 MPa.
Background
The shut-off valve is also called a shut-off valve, which is the most widely used valve, wherein the shut-off valve is a valve in which a shut-off member moves along the central axis of a valve body, the shut-off member is generally a screw, the change of a valve seat through hole is in a proportional relation with the stroke of a valve rod according to the moving form of the screw, and the flow can be regulated due to the proportional relation between the change of the valve seat through hole and the stroke of the valve rod, so that the shut-off valve is very suitable for being used as a shut-off, regulating or throttling fluid medium. The closing of the stop valve is based on the screw pressure to make the screw sealing surface closely fit with the valve seat sealing surface to prevent the fluid medium from flowing. The hydraulic system of the large-scale ultrahigh-pressure isostatic press needs to bear the liquid pressure of 300MPa at most, so that a manual stop valve with reliable and simple sealing structure and good operability is needed in the maintenance of the isostatic press.
Disclosure of Invention
The utility model aims to provide the ultrahigh-pressure manual stop valve which is suitable for an ultrahigh-pressure environment, reliable and simple in sealing structure and good in operability.
The utility model is realized by the following technical scheme: an ultra-high pressure manual stop valve which is characterized in that: the valve comprises an adjusting screw 5, a pressing block nut 6, a valve body 7 and a valve core 8, wherein a stepped through hole is axially formed in the valve body 7, a high-pressure liquid inlet B is formed in the lower end of the valve body 7, the pressing block nut 6 is mounted at the upper end of the valve body 7, the adjusting screw 5 is in threaded connection with the pressing block nut 6, the lower end of the adjusting screw 5 extends out of the pressing block nut 6 to be connected with the top end of the valve core 8, a taper angle is formed in the bottom end of the valve core 8, a conical surface is formed in the stepped surface of the valve body 7, a circular groove is formed in the radial direction of the valve core 8, a combined sealing ring which is sealed with the valve body 7 is formed in the circular groove, a radial hole I is formed in one side of the valve body 7, and a high-pressure liquid outlet A is formed in the radial hole I.
Further, a second radial hole is formed in the other side of the valve body 7 in the radial direction, a switch seat 17 is arranged in the second radial hole, the switch seat 17 is fixed on the valve body 7 through a screw 18, and the switch seat 17 is in threaded connection with the proximity switch 16.
Further, a step outer edge is formed on the upper portion of the valve core 8, and the proximity switch 16 detects the large outer edge of the valve core 8 and sends a signal.
Further, the combined sealing ring comprises a triangular sealing ring 9 and an O-shaped ring 10 which are sequentially arranged, and the combined sealing ring is fixed in the annular groove through a check ring 11 and a check washer 12.
Compared with the prior art, the ultrahigh-pressure manual stop valve has the following advantages:
The valve core is provided with a sealing element group formed by a combined sealing ring, a check ring and a locking washer which can bear ultrahigh pressure, and the conical surface adopted between the valve core and the valve body is sealed by hard sealing, so that the effect of bearing ultrahigh pressure sealing is achieved, and the sealing structure is reliable and simple; the regulating screw rod is driven to move downwards through the rotation of the hand wheel, the stepped through hole of the valve body is propped against by the conical surface sealing surface of the valve core, the stop valve is closed, when the hand wheel rotates in the opposite direction, the regulating screw rod rotates upwards, the valve core moves upwards along the axial line of the valve body, the stop valve is opened, and the operation is easy. In addition, a proximity switch is arranged, when the valve core moves upwards to the proper position, the proximity switch detects the large outer edge of the valve core and sends a signal immediately, so that the ultrahigh pressure stop valve is completely opened, and when the valve core moves downwards to the proper position, the proximity switch cannot detect the large outer edge of the valve core, so that the proximity switch does not send a signal, and therefore, whether the ultrahigh pressure manual stop valve is opened or closed during working can be effectively detected, and the defect that the ultrahigh pressure manual stop valve is not opened during working of a press is avoided.
Drawings
Fig. 1 is a schematic structural view of an ultra-high pressure manual shutoff valve of the present utility model.
In the figure: 1. the valve comprises a hand wheel, a nut, a washer, a key, a regulating screw, a pressing block nut, a valve body, a valve core, a triangular sealing ring, a 10O-shaped ring, a retainer ring, a locking washer, a joint nut, a screw sleeve, a conical surface pad, a proximity switch, a switch seat, a screw, a high-pressure liquid outlet and a high-pressure liquid inlet.
Detailed Description
The present utility model will be described in further detail with reference to examples, but embodiments of the present utility model are not limited thereto.
Fig. 1 shows an embodiment of the ultra-high pressure manual shutoff valve of the utility model, characterized in that: the valve comprises an adjusting screw 5, a pressing block nut 6, a valve body 7 and a valve core 8, wherein a stepped through hole is axially formed in the valve body 7, a high-pressure liquid inlet B is formed in the lower end of the valve body 7, the pressing block nut 6 is mounted at the upper end of the valve body 7, the adjusting screw 5 is in threaded connection with the pressing block nut 6, the lower end of the adjusting screw 5 extends out of the pressing block nut 6 to be connected with the top end of the valve core 8, the pressing block nut 6 is fixedly connected with the valve body 7 through a threaded hole of the valve body 7 and limits movement of the valve core 8 below, a taper angle is formed in the bottom end of the valve core 8, a taper surface is formed in the stepped surface of the valve body 7, a ring groove is formed in the radial opening of the valve core 8, a combined sealing ring which is sealed with the valve body 7 is formed, a radial hole I is formed in one side of the valve body 7, and a high-pressure liquid outlet A is formed in the radial hole I.
The other side of the valve body 7 is radially provided with a radial hole II, a switch seat 17 is arranged in the radial hole II, the switch seat 17 is fixed on the valve body 7 through a screw 18, and the switch seat 17 is in threaded connection with a proximity switch 16.
The combined sealing ring comprises a triangular sealing ring 9 and an O-shaped ring 10 which are sequentially arranged, and the combined sealing ring is fixed in the annular groove through a check ring 11 and a check washer 12.
The top end of the valve core 8 is provided with a T-shaped groove, and the lower end of the adjusting screw 5 is arranged in the T-shaped groove without falling out.
The upper part of the valve core 8 is provided with a stepped outer edge, and the proximity switch 16 detects the large outer edge of the valve core 8 and sends out a signal.
The upper part of the adjusting screw 5 is provided with a hand wheel 1, the upper part of the adjusting screw 5 is provided with a key groove, a key 4 is arranged in the key groove, the hand wheel 1 transmits power to the adjusting screw 5 through the key 4, so that the valve core 8 can be controlled through the cooperation of the hand wheel 1, the adjusting screw 5 and the pressing block nut 6, and the opening and closing of the whole stop valve can be controlled.
The upper end of the adjusting screw 5 is provided with external threads, and the hand wheel 1 is in pressure connection with the adjusting screw 5 through a nut 2 and a gasket 3.
The lower part of the valve body 7 is integrally provided with a first connecting shaft with an external thread section, the first connecting shaft is in threaded connection with a high-pressure liquid pipe joint component, the high-pressure liquid pipe joint component comprises a joint nut 13, a threaded sleeve 14 and a conical surface pad 15, one end of the joint nut 13 is internally provided with the threaded sleeve 14, one end of the threaded sleeve 14 is internally provided with the conical surface pad 15, the conical surface pad 15 is provided with a through hole, the upper end of the conical surface pad 15 is in contact with the lower end of the valve body 7, the other end of the joint nut 13 is provided with a through hole for forming a high-pressure liquid inlet B, the through hole is connected with a high-pressure liquid inlet pipeline, the other end of the threaded sleeve 14 is provided with an internal thread in threaded connection with the high-pressure liquid inlet pipeline, one side of the valve body 7 is radially provided with a second connecting shaft with an external thread section, and the second connecting shaft is provided with the high-pressure liquid pipe joint component.
Claims (8)
1. An ultra-high pressure manual stop valve which is characterized in that: including adjusting screw (5), briquetting nut (6), valve body (7) and case (8), valve body (7) axial open there is the step through-hole, the lower extreme of valve body (7) form high-pressure liquid import (B), the upper end of valve body (7) be equipped with briquetting nut (6), adjusting screw (5) with briquetting nut (6) threaded connection, adjusting screw (5) lower extreme stretch out briquetting nut (6) connect case (8) top, case (8) bottom system have the cone angle, the step face of valve body (7) system have the conical surface, case (8) bottom with the step face contact of valve body (7) form the conical surface hard seal, case (8) radial open have the annular, the annular in set up with valve body (7) form sealed combination sealing washer, valve body (7) one side radial hole one, radial hole one form high-pressure liquid export (A).
2. The ultra high pressure manual shutoff valve of claim 1, wherein: the other side of the valve body (7) is radially provided with a radial hole II, a switch seat (17) is arranged in the radial hole II, the switch seat (17) is fixed on the valve body (7) through a screw (18), and the switch seat (17) is in threaded connection with a proximity switch (16).
3. An ultra high pressure manual shut off valve according to claim 2, wherein: the upper part of the valve core (8) is provided with a stepped outer edge, and the proximity switch (16) detects the large outer edge of the valve core (8) and sends out a signal.
4. The ultra high pressure manual shutoff valve of claim 1, wherein: the combined sealing ring comprises a triangular sealing ring (9) and an O-shaped ring (10) which are sequentially arranged, and the combined sealing ring is fixed in the annular groove through a check ring (11) and a check washer (12).
5. An ultra high pressure manual shut off valve according to claim 3, wherein: the combined sealing ring comprises a triangular sealing ring (9) and an O-shaped ring (10) which are sequentially arranged, and the combined sealing ring is fixed in the annular groove through a check ring (11) and a check washer (12).
6. The ultra high pressure manual shutoff valve of claim 5, wherein: the top end of the valve core (8) is provided with a T-shaped groove, and the lower end of the adjusting screw (5) is not separated from the T-shaped groove.
7. The ultra high pressure manual shutoff valve of claim 6, wherein: the hand wheel (1) is arranged on the upper portion of the adjusting screw (5), a key groove is formed in the upper portion of the adjusting screw (5), a key (4) is arranged in the key groove, and the hand wheel (1) transmits power to the adjusting screw (5) through the key (4).
8. The ultra high pressure manual shutoff valve of claim 7, wherein: the upper end of the adjusting screw (5) is provided with external threads, and the hand wheel (1) is in pressure connection with the adjusting screw (5) through a nut (2) and a gasket (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323070644.1U CN221278479U (en) | 2023-11-14 | 2023-11-14 | Ultra-high pressure manual stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323070644.1U CN221278479U (en) | 2023-11-14 | 2023-11-14 | Ultra-high pressure manual stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221278479U true CN221278479U (en) | 2024-07-05 |
Family
ID=91702539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323070644.1U Active CN221278479U (en) | 2023-11-14 | 2023-11-14 | Ultra-high pressure manual stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221278479U (en) |
-
2023
- 2023-11-14 CN CN202323070644.1U patent/CN221278479U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |