CN203585398U - Friction-free ball valve with sectional valve rod - Google Patents
Friction-free ball valve with sectional valve rod Download PDFInfo
- Publication number
- CN203585398U CN203585398U CN201320594876.4U CN201320594876U CN203585398U CN 203585398 U CN203585398 U CN 203585398U CN 201320594876 U CN201320594876 U CN 201320594876U CN 203585398 U CN203585398 U CN 203585398U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- pin
- guide groove
- spool
- Prior art date
- 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 - Lifetime
Links
Images
Landscapes
- Sliding Valves (AREA)
Abstract
The utility model discloses a friction-free ball valve with a sectional valve rod. The valve rod includes an upper valve rod (12) and a lower valve rod (16), symmetric valve spool pin holes are formed in a valve spool, valve spool pins (3) are inserted into the valve spool pin holes, a tapered wedge flat head of the lower valve rod is inserted into the space between the two valve spool pins, one side of each valve spool pin contacting with the tapered wedge flat head is a plane, the upper portion of the lower valve rod is connected with an angular travel guide cylinder (11) sleeved in a straight travel guide cylinder (10) through pin holes (16b and 11c) and a pin (15), a straight travel guide through groove (10a) and an L-shaped guide through groove pin hole (10b) are formed in the straight travel guide cylinder, an angular travel guide through groove (11a), an L-shaped guide through groove (11b) and the pin hole (11c) are formed in the angular travel guide cylinder, an L-shaped guide through groove pin (14) penetrates the pin hole (10b) and the L-shaped guide through groove (11b) and is fixed on the L-shaped guide through groove pin hole (10b), and an upper valve rod pin (13) penetrates the straight travel guide through groove (10a) and the angular travel guide through groove (11a) and is fixed to the upper valve rod (12).
Description
Technical field
The utility model relates to valve technical products, and especially a kind of sectioning valve rod-type is without friction ball valve.
Background technique
Along with the development of modern industrial technology, the various high temperature of the increasing appearance of fluid control field, high pressure, High Pressure Difference, strong erosion operating mode, and for Security, the object of Economy and environmental protection, the leakage of valve is also had to more and more stricter requirement, traditional blocks class valve as gate valve, stop valve, stopcocks etc. are more and more difficult to meet the requirement of these diversity and complexity, ball valve is as nearly decades of valve class with fastest developing speed, because of it, to have fluid resistance little, simple in structure, closely reliable, easy to operate, open and close rapidly, valve sealing face is not subject to medium erosion, the advantage such as applied widely is widely used, but traditional soft sealing ball valve is at high temperature, application under strong erosion and high pressure operating mode is restricted, metal hard-sealing ball valve exists keying moment large, sealing surface and the prooving of valve seat are serious, sealing is difficult to the shortcomings such as assurance, Orbit valve (Orbit Valves, orbit ball valve) and RSBV valve (Rising Stem Ball Valves, elevating lever-type ball valve) as the forced seal in conjunction with stop valve, sealing surface opens and closes without the fluid resistance of friction and ball valve little, the advantage that sealing surface is not subject to fluid erosion, a kind ofly under the complex working conditions such as High Temperature High Pressure, have compared with the long life and there is the valve of zero leakage feature, but above-mentioned two kinds of valves all exist spool pin and stem wear larger, be difficult to working life continue to improve, to the lower shortcoming of pipeline pressure reduction bearing capacity.
Model utility content
The purpose of this utility model is to overcome the deficiencies in the prior art, and the sectioning valve rod-type of provide a kind of more reasonable structure, can further improve valve whole service life, being convenient to maintenance and maintenance is without friction ball valve.The purpose of this utility model realizes by following technical proposals: the utility model comprises valve body, valve seat, spool, gudgeon lining, inside be provided with the valve gap of valve lever bushing and packing press ring and preloading dish spring, valve rod, guide cylinder, pin and connecting bolt, it is characterized in that valve rod is upper valve rod and the lower valve rod composition of split, lower valve rod underpart is provided with wedge homalocephalus, spool is provided with the groove and the spool pin hole that adapt with wedge homalocephalus, in symmetrical spool pin hole, be inserted with spool pin, lower valve rod wedge homalocephalus inserts between two spool pins, it is plane that spool pin touches a side mutually with wedge homalocephalus, valve gap is fixed on valve body, lower valve rod top is passed valve gap and is connected by pin hole and pin with the angle stroke guide cylinder being socketed in straight journey guide cylinder, straight journey guide cylinder is provided with straight journey guide groove and L shaped guide groove pin hole, angle stroke guide cylinder is provided with angle stroke guide groove, L shaped guide groove and pin hole, L shaped guide groove pin passes pin hole and L shaped guide groove and is fixed on the L shaped guide groove pin hole on straight journey guide cylinder, upper valve rod pin passes straight journey guide groove and angle stroke guide groove and fixes with upper valve rod.
On valve gap, can have additional the pouring-in packing seal of filler mouth for stuffing box.
Can on upper valve rod pin and L shaped guide groove pin, be socketed a lining if desired.
Working principle of the present utility model is as follows, when promoting upper valve rod, angle stroke guide cylinder can not rotate under the restriction of L shaped guide groove pin, can only drive lower valve rod to do Integral lifting motion, by the wedge homalocephalus of lower valve rod, spool and valve seat are disengaged, while continuing to promote upper valve rod, angle stroke guide cylinder can not continue to promote under the restriction of L shaped guide groove pin, at upper valve rod pin, under the acting in conjunction of straight journey guide groove and angle stroke guide groove, angle stroke guide cylinder drives lower valve rod and makes Spool rotating by lower valve rod wedge homalocephalus, valve opening.
When decline upper valve rod, angle stroke guide cylinder can not do descending motion under the restriction of L shaped guide groove pin, can only be at upper valve rod pin, under the acting in conjunction of straight journey guiding groove and angle stroke guide groove, drive lower valve rod to rotate, wedge homalocephalus by lower valve rod makes Spool rotating to close stance, while continuing decline upper valve rod, angle stroke guide cylinder can not continue rotation under the restriction of L shaped guide groove pin, at upper valve rod pin, under the acting in conjunction of straight journey guiding groove, angle stroke guide cylinder drives lower valve rod to decline, spool presses to valve seat under the wedge homalocephalus of lower valve rod and the effect of spool pin, valve closing.
Above two kinds of course of action are that reversible also can repetition realized.
The utility model is by the especially valve opening and closing action piece (mechanism) of valve mechanism redesigning, the wearing and tearing of spool pin and valve rod have been alleviated, improved the bearing capacity of valve core valve stem assembly to pipeline pressure reduction, promoted valve especially working life of valve internal parts, extend maintenance and the replacement cycle of valve or valve part, to adapt to and to meet the requirement of the various high parameters of modern industry fluid control field, long life and high reliability.
Compared with prior art its advantage is obvious, when it has the keying identical with RSBV valve with Orbit valve, sealing surface is without friction, keying moment is little, sealing surface long service life, sealing is reliable, can realize outside the advantage of zero leakage, also have pipeline pressure reduction bearing capacity strong, the long advantage of whole service life of valve internal parts, especially valve rod wedge homalocephalus can have the plane contact larger than Orbit valve with spool pin, Orbit valve and RSBV valve valve rod wedge homalocephalus and the little serious wear causing of valve rod dowel contact area and the key issue lower to pipeline pressure reduction bearing capacity have been overcome, while lower valve rod axial stroke compares Orbit valve and RSBV valve is short, filler loss is relatively little, valve rod pin, the parts such as guiding groove or feature are external visual, maintain easily, maintenance.
This valve can be widely used in the fluid control under the complicated bad working environments in each fields such as oil, chemical industry, electric power, metallurgy, comprise in high temperature, high pressure, High Pressure Difference etc. or using process open and close frequent, have high leakage standard-required and need to maintain the various occasions such as longer repair and maintenance cycle.From the known the purpose of this utility model of above-mentioned situation, can realize.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is that the utility model embodiment assembles schematic diagram.
Fig. 3 is the utility model embodiment spool pin feature schematic diagram.
Embodiment
As Fig. 1, 2, shown in 3, the utility model comprises valve body 1, valve seat 19, inside be provided with the valve gap 4 of lining 6 and packing press ring 7 and preloading dish spring 8, connecting bolt 5, valve rod, spool 2, guide cylinder, it is characterized in that valve rod is that upper valve rod 12 and the lower valve rod 16 of split forms, lower valve rod underpart has wedge homalocephalus 16a, spool is provided with the groove and the spool pin hole 2b that adapt with wedge homalocephalus, spool pin hole is used for installing spool pin 3, lower valve rod wedge homalocephalus inserts between two spool pins, valve rod is along stem shaft to being free to slide, spool pin is rotatable in spool pin hole, pin 15 and pin hole 16b are passed through through valve gap and with the angle stroke guide cylinder 11 being socketed in straight journey guide cylinder 10 in lower valve rod top, 11c connects, straight journey guide cylinder is provided with craspedodrome guide groove 10a and L shaped guide groove pin hole 10b, straight journey guide cylinder is fixedly connected with valve gap top by bolt 9, straight journey guide cylinder and bonnet also can be designed to integral type overall structure if desired, on the stroke guide cylinder of angle, be arranged with angle stroke guide groove 11a, L shaped guide groove 11b and pin hole 11c, L shaped guide groove pin 14 is fixed on the L shaped guide groove pin hole 10b on straight journey guide cylinder through pin hole 10b and L shaped guide groove 11b, can on upper valve rod pin 13 and L shaped guide groove pin, be socketed a lining if desired.Upper valve rod pin 13 passes straight journey guide groove 10a and angle stroke guide groove 11a and fixes with upper valve rod.Can on valve gap, be provided with if desired filler mouth 17 for the pouring-in packing seal of stuffing box 18, spool is installed in valve body by gudgeon 2a and gudgeon lining 20, spool is provided with spool pin hole 2b, and is inserted with spool pin 3, and it is plane that spool pin touches a side mutually with the inclined to one side head of wedge.
Claims (3)
1. a sectioning valve rod-type is without friction ball valve, comprise valve body (1), valve seat (19), spool (2), gudgeon lining, inside be provided with the valve gap (4) of valve lever bushing (6) and packing press ring (7) and preloading dish spring (8), connecting bolt (5), guide cylinder, pin and connecting bolt, it is characterized in that: the upper valve rod (12) that valve rod is split and lower valve rod (16) composition, lower valve rod underpart is provided with wedge homalocephalus (16a), spool is provided with the groove and the spool pin hole (2b) that adapt with wedge homalocephalus, in symmetrical spool pin hole, be inserted with spool pin (3), lower valve rod wedge homalocephalus inserts between two spool pins, it is plane that spool pin touches a side mutually with wedge homalocephalus, valve gap is fixed on valve body, pin hole (16b is passed through through valve gap and with the angle stroke guide cylinder (11) being socketed in straight journey guide cylinder (10) in lower valve rod top, 11c) be connected with pin (15), straight journey guide cylinder is provided with straight journey guide groove (10a) and L shaped guide groove pin hole (10b), angle stroke guide cylinder is provided with angle stroke guide groove (11a), L shaped guide groove (11b) and pin hole (11c), L shaped guide groove pin (14) passes pin hole (10b) and L shaped guide groove (11b) and is fixed on the L shaped guide groove pin hole (10b) on straight journey guide cylinder, upper valve rod pin (13) passes straight journey guide groove (10a) and angle stroke guide groove (11a) and fixes with upper valve rod (12).
2. a kind of sectioning valve rod-type according to claim 1, without friction ball valve, is characterized in that: valve gap (4) is provided with filler mouth (17).
3. a kind of sectioning valve rod-type according to claim 1, without friction ball valve, is characterized in that: upper valve rod pin (15) and L shaped guide groove pin (14) upper socket one lining (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594876.4U CN203585398U (en) | 2013-09-26 | 2013-09-26 | Friction-free ball valve with sectional valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594876.4U CN203585398U (en) | 2013-09-26 | 2013-09-26 | Friction-free ball valve with sectional valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585398U true CN203585398U (en) | 2014-05-07 |
Family
ID=50583324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320594876.4U Expired - Lifetime CN203585398U (en) | 2013-09-26 | 2013-09-26 | Friction-free ball valve with sectional valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511656A (en) * | 2013-09-26 | 2014-01-15 | 岳廷 | Segmentation valve rod type friction-free ball valve |
-
2013
- 2013-09-26 CN CN201320594876.4U patent/CN203585398U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511656A (en) * | 2013-09-26 | 2014-01-15 | 岳廷 | Segmentation valve rod type friction-free ball valve |
| CN103511656B (en) * | 2013-09-26 | 2015-10-28 | 岳廷 | Segmentation valve rod type friction-free ball valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110159786B (en) | Non-abrasion ball valve | |
| CN105221784A (en) | A kind of wear-less hard seal ball valve | |
| CN102410381A (en) | Bidirectional hard seal ball valve for coal chemical industry | |
| CN202674339U (en) | Butt-weld bidirectional pressing hard seal butterfly valve | |
| CN103511656B (en) | Segmentation valve rod type friction-free ball valve | |
| CN203309176U (en) | Rail-mounted hard seal ball valve | |
| CN203627868U (en) | Novel distraction spherical intercepting valve | |
| CN201318464Y (en) | Rail type plug valve | |
| CN205504042U (en) | Dark manual wafer valve of pole | |
| CN203585398U (en) | Friction-free ball valve with sectional valve rod | |
| CN202432004U (en) | Trunnion ball valve capable of opened and closed easily | |
| CN203395244U (en) | Unfurled spherical gate valve without friction | |
| CN202884051U (en) | Novel integrated stop valve | |
| CN202884204U (en) | Pneumatic actuator | |
| CN202188153U (en) | Bidirectional hard-seal fixed-type ball valve used in coal chemical industry | |
| CN201818881U (en) | Gas cut-off valve | |
| CN201705969U (en) | Wedge floating type ceramic valve | |
| CN203131081U (en) | High-tightness flat gate valve | |
| CN202867900U (en) | Two-way omni-seal gate valve | |
| CN202561109U (en) | V-shaped ball valve | |
| CN102494153A (en) | Fixed ball valve capable of being opened and closed easily | |
| CN203214897U (en) | High-pressure self-sealing check valve with low flow resistance | |
| CN201028003Y (en) | Butterfly valve | |
| CN202418688U (en) | Stretch type metal hard seal ball valve | |
| CN206845955U (en) | A kind of Outside screw stem rising through handwheel type gate valve position-limit mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |