CN203442159U - Instrument stop valve with non-rotating valve rod - Google Patents
Instrument stop valve with non-rotating valve rod Download PDFInfo
- Publication number
- CN203442159U CN203442159U CN201320279492.3U CN201320279492U CN203442159U CN 203442159 U CN203442159 U CN 203442159U CN 201320279492 U CN201320279492 U CN 201320279492U CN 203442159 U CN203442159 U CN 203442159U
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- China
- Prior art keywords
- valve
- valve rod
- packing
- filler
- rod
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- Expired - Lifetime
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Abstract
The utility model relates to an instrument stop valve with a non-rotating valve rod. The stop valve comprises a valve body (1), a valve base (2), the valve rod (6), packing (5), a packing bushing (7), an adjustor (8), a bearing base (10), steel balls (11), a valve rod nut (12) and a shaft sleeve (14). The stop valve is characterized in that the valve rod (6) is disposed in the valve base (2); the two ends of the packing (5) are provided with packing seats (3) and the packing (5) is disposed at the bottom in the valve base (2); after the packing is installed into the packing bushing (7), the packing bushing is screwed into the adjustor (8), the adjustor is adjusted until the adjustor extrudes the packing bushing (7) and compresses the packing seats (3) and the packing (5) and the packing (5) embraces the valve rod (6) tightly for forming seal, and then the nut (9) is tightened and locked; and the upper thread end of the valve body (1) is provided with a metal seal ring (4) and the upper thread of the valve body is in tight fit with the lower thread of the valve base (2). The stop valve is of a structure characterized in that the valve rod nut is rotated through a ball bearing to drive the valve rod to move vertically without rotation. The stop valve has the advantages of low friction coefficient, long service life, easy operation and reverse termination back seal.
Description
Technical field
The utility model relates to design and the manufacture of valve, is widely used in industrial pipeline the liquid in the instrumentation pipelines such as all kinds of flows in particularly automatically controlling, differential pressure, pressure, liquid level or keying and the control gear of gas medium.
Background technique
At present, the instrument block valve of extensive use is all tightly embraced valve rod by filler and is realized sealing, during operation, need rotatable handle or handwheel band ovable valve stem directly under the effect of filler internal spiral lifting, to carry out and open and close, because valve rod spiral lifting produces very large frictional force and certain friction amount in filler, so easily wearing and tearing and operational torque are larger, affect sealability and the working life of valve.
Summary of the invention
In order to overcome existing instrument block valve packing seal position frictional force and large, the easy to wear deficiency of amount of friction.The invention provides and a kind ofly by Stem Mut, adopt ball bearing to rotarily drive the not structure of rotary lifting movement of valve rod, make its friction factor minimum, long service life, operates free and relaxed.While opening valve, there is step closure in reverse conical surface and valve seat at the spool position of valve rod, forms and oppositely stops back seal structure.The present invention is specially adapted in the pipeline of the media such as High Temperature High Pressure and corrosivity.
The technical solution of the utility model is:
1, a kind of valve rod does not rotate instrument block valve, by valve body, valve seat, valve rod, filler, filler pressing sleeve, adjusting element, bearing support, steel ball, Stem Mut, axle sleeve etc., formed, it is characterized in that: one end of valve rod is spool, the top of spool is reverse circular cone, middle part is polished rod, and the other end is screw thread; Valve rod is placed in valve seat, the two ends of filler have respectively Packing seat to be placed in the bottom in valve seat, after packing filler pressing sleeve into, screw in and adjust adjusting element, make its extruding filler pressing sleeve compression Packing seat and filler to filler tightly embrace valve rod and form sealing configuration, locknut is screwed to locking.Metal o-ring is housed the upper threaded end of valve body and valve seat lower thread closely cooperates.Bearing support, steel ball, Stem Mut and axle sleeve are equipped with in adjusting element inside, and the circumference between the outer step both sides of Stem Mut and bearing support and axle sleeve is arranged respectively the steel ball of some quantity same sizes, by axle sleeve, regulates the suitable rear locking locknut in gap to locate.At the top of Stem Mut mounting handle or handwheel, rotatable handle or handwheel, drive Stem Mut rotation, makes the upper and lower straight line lifting of valve rod, carries out the open and close of valve.
2, described valve seat bottom is outside thread and hexagonal, and its endoporus is provided with step in valve seat; Top is cylinder, and there is the deep hole coordinating with filler and filler pressing sleeve etc. inside, and oral area is that internal thread coordinates with adjusting element.
3, one of described link is that outside thread coordinates with valve gap, and stage casing is outer-hexagonal, and there is respectively hole and the screw thread coordinating with valve rod, bearing support, Stem Mut, axle sleeve inside.
4, one end of described Stem Mut is the one section of cylindrical coordinating with bearing support, internal thread and valve rod are engaged to the suitable degree of depth, the other end is cylinder, square body and the screw thread coordinating with axle sleeve, handle or handwheel etc. respectively, intermediary outside has a step, and its both sides have puts respectively steel ball and the circular trough consistent with spherical cambered surface.
While 5, opening valve, valve rod rises and causes step closure in the reverse conical surface in spool position and valve seat, forms and oppositely stops back seal structure, has blocked medium upper reaches.
Advantage of the present invention and beneficial effect are:
1, spool and valve-stem integratedization design, filler is tightly embraced valve rod and is not rotated, by Stem Mut, adopt ball bearing to rotarily drive the not structure of rotary lifting movement of valve rod, frictional force between filler and valve rod and fricting movement amount minimize, make the sealability of valve more excellent, operate lighter, longer service life.
2, due to the lower position sealing of filler at valve rod and valve seat, isolated medium, is conducive to cleaning and lubrication effect of all superstructure component inside.
While 3, opening valve, there is step closure in reverse conical surface and valve seat at the spool position of valve rod, forms and oppositely stops back seal structure, has blocked medium upper reaches, has increased by one security seal guarantee.
4, the utility model is specially adapted in the occasion and pipeline of high temperature, high pressure, corrosivity, the medium such as poisonous, harmful.
Accompanying drawing explanation
Fig. 1 is that valve rod does not rotate instrument stop valve structure figure.
In figure: 1, step 3, Packing seat 4, metal packing washer 5, filler 6, valve rod 6-1, reverse circular cone 7, filler pressing sleeve 8, adjusting element 9, locknut 10, bearing support 11, steel ball 12, Stem Mut 13, locknut 14, axle sleeve 15, handle or handwheel 16, packing ring 17, nut in valve body 2, valve seat 2-1, valve seat
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
1, a kind of valve rod does not rotate instrument block valve, by valve body (1), valve seat (2), valve rod (6), filler (5), filler pressing sleeve (7), adjusting element (8), bearing support (10), steel ball (11), Stem Mut (12), axle sleeve (14) etc., formed, it is characterized in that: one end of valve rod (6) is spool, the top of spool is reverse circular cone (6-1), middle part is polished rod, and the other end is screw thread; Valve rod (6) is placed in valve seat (2), the two ends of filler (5) have respectively Packing seat (3) to be placed in the bottom in valve seat (2), after packing filler pressing sleeve (7) into, screw in and adjust adjusting element (8), make its extruding filler pressing sleeve (7) compression Packing seat (3) and filler (5) to filler (5) tightly embrace valve rod (6) and form sealing configuration, locknut (9) is screwed to locking.The upper threaded end of valve body (1) is equipped with metal o-ring (4) and closely cooperates with valve seat (2) lower thread.Bearing support (10), steel ball (11), Stem Mut (12) and axle sleeve (14) are equipped with in adjusting element (8) inside, circumference between Stem Mut (12) outer step both sides and bearing support (10) and axle sleeve (14) is arranged respectively the steel ball (11) of some same sizes, by axle sleeve (14), regulates the suitable rear locking locknut in gap (13) location.At top mounting handle or the handwheel (15) of Stem Mut (12), rotatable handle or handwheel (15), drive Stem Mut (12) rotation, makes the upper and lower straight line lifting of valve rod (6), carries out the open and close of valve.
2, described valve seat (2) bottom is outside thread and hexagonal, and its endoporus is provided with step (2-1) in valve seat; Top is cylinder, and there is the deep hole coordinating with filler (5) and filler pressing sleeve (7) etc. inside, and oral area is that internal thread coordinates with adjusting element (8).
3, one of described adjusting element (8) is that outside thread coordinates with valve seat (2), and stage casing is outer-hexagonal, and there is respectively hole and the screw thread coordinating with valve rod (6), bearing support (10), Stem Mut (12), axle sleeve (14) inside.
4, one end of described Stem Mut (12) is the one section of cylindrical coordinating with bearing support (10), internal thread and valve rod (2) are engaged to the suitable degree of depth, the other end is cylinder, square body and the screw thread coordinating with axle sleeve (14), handle or handwheel (15) etc. respectively, intermediary outside has a step, and its both sides have puts respectively steel ball (11) and the circular trough consistent with spherical cambered surface.
While 5, opening valve rod (6) rising, step (2-1) closure in spool position reverse circular cone (6-1) face and valve seat, forms and oppositely stops back seal structure, has blocked medium upper reaches.
Claims (7)
1. a valve rod does not rotate instrument block valve, by valve body (1), valve seat (2), valve rod (6), filler (5), filler pressing sleeve (7), adjusting element (8), bearing support (10), steel ball (11), Stem Mut (12), the compositions such as axle sleeve (14), it is characterized in that: valve rod (6) is placed in valve seat (2), the two ends of filler (5) have respectively Packing seat (3) to be placed in the bottom in valve seat (2), after packing filler pressing sleeve (7) into, screw in and adjust adjusting element (8), its extruding filler pressing sleeve (7) compresses Packing seat (3) and filler (5) to filler (5) is tightly embraced valve rod (6) formation sealing, locknut (9) is screwed to locking, the upper threaded end of valve body (1) is equipped with metal o-ring (4) and closely cooperates with valve seat (2) lower thread.
2. valve rod does not rotate instrument block valve according to claim 1, it is characterized in that: bearing support (10), steel ball (11), Stem Mut (12) and axle sleeve (14) are equipped with in adjusting element (8) inside, circumference between Stem Mut (12) outer step both sides and bearing support (10) and axle sleeve (14) is arranged respectively the steel ball (11) of some quantity same sizes, by axle sleeve (14), regulates the suitable rear locking locknut in gap (13) location; At top mounting handle or the handwheel (15) of Stem Mut (12), rotatable handle or handwheel (15), drive Stem Mut (12) rotation, makes the upper and lower straight line lifting of valve rod (6).
3. valve rod does not rotate instrument block valve according to claim 1, it is characterized in that: when valve rod (6) rises, step (2-1) closure in spool position reverse circular cone (6-1) face and valve seat, forms and oppositely stop back seal.
4. valve rod does not rotate instrument block valve according to claim 1, it is characterized in that: one end of described valve rod (6) is spool, and the top of spool is reverse circular cone (6-1), and middle part is polished rod, and the other end is screw thread;
5. valve rod does not rotate instrument block valve according to claim 1, it is characterized in that: described valve seat (2) bottom is outside thread and hexagonal, and its endoporus is provided with step (2-1) in valve seat; Top is cylinder, and there is the deep hole coordinating with filler (5) and filler pressing sleeve (7) etc. inside, and oral area is that internal thread coordinates with adjusting element (8).
6. valve rod does not rotate instrument block valve according to claim 2, it is characterized in that: one of adjusting element (8) is that outside thread coordinates with valve seat (2), stage casing is outer-hexagonal, and there is respectively hole and the screw thread coordinating with valve rod (6), bearing support (10), Stem Mut (12), axle sleeve (14) inside.
7. valve rod does not rotate instrument block valve according to claim 1, it is characterized in that: one end of described Stem Mut (12) is the one section of cylindrical coordinating with bearing support (10), internal thread and valve rod (2) are engaged to the suitable degree of depth, the other end is cylinder, square body and the screw thread coordinating with axle sleeve (14), handle or handwheel (15) etc. respectively, intermediary outside has a step, and its both sides have puts respectively steel ball (11) and the circular trough consistent with spherical cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320279492.3U CN203442159U (en) | 2013-05-17 | 2013-05-17 | Instrument stop valve with non-rotating valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320279492.3U CN203442159U (en) | 2013-05-17 | 2013-05-17 | Instrument stop valve with non-rotating valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203442159U true CN203442159U (en) | 2014-02-19 |
Family
ID=50093216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320279492.3U Expired - Lifetime CN203442159U (en) | 2013-05-17 | 2013-05-17 | Instrument stop valve with non-rotating valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203442159U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256394A (en) * | 2013-05-17 | 2013-08-21 | 江苏星河阀门有限公司 | Instrument blocking valve with non-rotary valve rod |
| CN104089035A (en) * | 2014-07-21 | 2014-10-08 | 江苏星河阀门有限公司 | Valve rod irrotational structure of corrugated pipe check valve |
| CN104089029A (en) * | 2014-07-21 | 2014-10-08 | 江苏星河阀门有限公司 | Valve rod non-rotating structure of stop valve |
| CN114811174A (en) * | 2022-03-09 | 2022-07-29 | 中国船舶重工集团公司第七二五研究所 | Spiral packing pressing sleeve |
-
2013
- 2013-05-17 CN CN201320279492.3U patent/CN203442159U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256394A (en) * | 2013-05-17 | 2013-08-21 | 江苏星河阀门有限公司 | Instrument blocking valve with non-rotary valve rod |
| CN104089035A (en) * | 2014-07-21 | 2014-10-08 | 江苏星河阀门有限公司 | Valve rod irrotational structure of corrugated pipe check valve |
| CN104089029A (en) * | 2014-07-21 | 2014-10-08 | 江苏星河阀门有限公司 | Valve rod non-rotating structure of stop valve |
| CN114811174A (en) * | 2022-03-09 | 2022-07-29 | 中国船舶重工集团公司第七二五研究所 | Spiral packing pressing sleeve |
| CN114811174B (en) * | 2022-03-09 | 2023-09-22 | 中国船舶重工集团公司第七二五研究所 | Spiral packing pressing sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |