CN205118267U - Bellows stop valve with universal joint is shaft drive even - Google Patents
Bellows stop valve with universal joint is shaft drive even Download PDFInfo
- Publication number
- CN205118267U CN205118267U CN201520915497.XU CN201520915497U CN205118267U CN 205118267 U CN205118267 U CN 205118267U CN 201520915497 U CN201520915497 U CN 201520915497U CN 205118267 U CN205118267 U CN 205118267U
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- valve
- bellows
- couple axle
- inner chamber
- shaft drive
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Abstract
The utility model discloses a bellows stop valve with universal joint is shaft drive even, still include including valve body, valve gap, valve clack, valve rod and bellows and connect on the valve rod and the shaft drive of company who is used for the driver's valve pole to go up and down, should link shaft drive and including drive base, couple axle and lock nut, drive base fixed connection in the upper end of valve gap, the drive base in be provided with the upper end open -ended and rotate the inner chamber, the couple axle rotate and to set up intracavity in rotating, be provided with on the lateral wall of this couple axle to rotate and support the bulge loop, lower terminal surface and the diapire that rotates the inner chamber of rotation supporting bulge loop between support and be provided with down flat housing. The utility model has the advantages that: support effectual, dustproof effectual and effective prevent misuse etc.
Description
Technical field
The utility model relates to a kind of valve, specifically refers to bellows stop valve, refers to the bellows stop valve with universal joint connecting shaft drive unit especially.
Background technique
Existing bellows stop valve includes valve body, valve gap, flap, valve rod, bellows and stem driver, described valve body and valve gap are through screw or Flange joint, valve body is provided with flow channel, flow pass, flow channel, valve pocket is provided with between flow pass, flap and valve rod are linked, bellows-sheathed is located on valve rod, filler is provided with between the valve rod and valve gap of bellows upper end, bellows lower end is welded with valve rod, bellows upper end is sealingly fastened in valve gap lower end, such bellows can prevent physical contact between media to filler, valve seat is provided with in valve pocket, between flap and valve seat, corresponding position is respectively equipped with conical seal (contact) face, be elevated by stem driver band ovable valve stem and then drive flap to be elevated, when flap and valve base sealing, valve is in cut-off state.
The stem driver of existing bellows stop valve generally comprises handwheel, the support be fixed on valve gap, rotating support are arranged at Stem Mut on support, Stem Mut is connected with valve rod threaded upper ends, by handwheel actuate valve stem nut, valve rod is made to carry out oscilaltion.
There is following defect in the stem driver of this traditional bellows stop valve:
(1) easily misoperation, always handwheel is arranged on Stem Mut, and handwheel once be misused rotation, then directly causes valve to occur switching motion; In addition, the setting of handwheel, also causes whole valve height higher, takes up room large;
(2) dust-proof effect is poor, and the screw connection point of Stem Mut and valve rod is exposed to outside for a long time, and external dust, rainwater etc. easily enter in the screw connection point of Stem Mut and valve rod, cause getting rusty in it or driving difficulty;
(3) support effects is poor, the overall weight of valve rod and flap is all be supported on Stem Mut, and the power suffered by Stem Mut then passes to support, this structure, Stem Mut support effects is not good, and long-time practicality easily causes Stem Mut heavy wear.
Summary of the invention
The purpose of this utility model is the shortcoming and defect existed to overcome prior art, and the bellows stop valve with universal joint connecting shaft drive unit providing a kind of support effects good.
For achieving the above object, the technical solution of the utility model includes valve body, valve gap, flap, valve rod and bellows, valve body is provided with valve seat, body cavity is divided into upper chamber and lower chambers by valve seat, the lower end of valve rod is fixed in described flap interlock, and this flap is positioned at upper chamber and adaptive with valve base sealing, the upper end of valve gap is passed on the top of described valve rod, bellows-sheathed is located on valve rod, bellows lower end is welded with valve rod, bellows upper end is sealingly fastened in valve gap lower end, also comprise and be connected to valve rod upper end and the connecting shaft drive unit be elevated for actuate valve stem, this connecting shaft drive unit includes driving base, couple axle and locking nut, base is driven to be fixedly connected on the upper end of valve gap, the rotation inner chamber of upper end open is provided with in described driving base, described couple axle rotates to be arranged at and rotates in inner chamber, the sidewall of this couple axle is provided with rotating support bulge loop, support between the lower end surface of described rotating support bulge loop and the diapire rotating inner chamber and be provided with lower plane bearing, described locking nut is screwed on and rotates on the inwall of inner chamber relative to the axial outer end of rotating support bulge loop, and support between this locking nut and rotating support bulge loop and be provided with plane bearing, the center of the axial outer end of described couple axle is provided with driving head, the center of the axial inner ends of described couple axle is provided with threaded interior hole, the upper end of described valve rod is provided with threaded screw rod section, this threaded screw rod section activity through drive base bottom centre and with the threaded interior hole threaded adapter on it, the center of this couple axle is communicated with the valve rod lifting movable span being provided with diameter and being greater than threaded screw rod section relative to the top of threaded interior hole.
Further setting is that between the inwall of described locking nut and the outer wall of couple axle, gap is rotatably assorted.
Further setting is the cross section of described driving head is regular polygon.
Further setting is that described valve gap is provided with filler inner chamber relative to the upper inside wall of valve rod, and be provided with filler in this filler inner chamber, the upper end of this filler inner chamber is provided with filler pressing sleeve, and the upper end of this filler pressing sleeve is fixedly installed hold-down grid.
The working principle of the connecting shaft drive unit set by the utility model is:
Control driving head by instruments such as spanners to rotate, and then drive couple axle to rotate, couple axle rotates and the threaded screw rod section of the threaded interior hole in couple axle on valve rod is rotated, thus actuate valve stem oscilaltion.
By arranging connecting shaft drive unit, there is following advantage in the utility model:
(1) rotating support is effective, the power of actuate valve stem lifting acts on couple axle, and couple axle is driven base to support completely, and due to the supporting role of upper equalizer bearing and lower equalizer bearing, couple axle uniform force, rotational resistance is little, and long-time use is not yielding, and working life produces long;
(2) when needs valve rod is elevated, needing could be matched with driving head by instruments such as extra spanners carries out descending operation, effectively can prevent misoperation thus;
(3) setting of locking nut, can effectively prevent external dust from entering between the inwall of plane bearing or couple axle and driving base, good dustproof effect;
(4) setting of driving head, can reduce the associated mechanisms such as handwheel, effectively can save installation space.
Below in conjunction with specification drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 the utility model embodiment structural representation.
Embodiment
Below by embodiment, the utility model being specifically described, only for being further described the utility model, the restriction to the utility model protection domain can not being interpreted as.
Embodiment of the present utility model as shown in Figure 1, with the bellows stop valve of universal joint connecting shaft drive unit, include valve body 1, valve gap 2, flap 3, valve rod 4 and bellows 41, valve body 1 is provided with valve seat 11, body cavity is divided into upper chamber 13 and lower chambers 14 by valve seat 11, the lower end of valve rod 4 is fixed in described flap 3 interlock, and this flap 4 is positioned at upper chamber 13 and seals adaptation with valve seat 11, the upper end of valve gap 2 is passed on the top of described valve rod 4, bellows 41 is set on valve rod 4, bellows 41 lower end is welded with valve rod 4, bellows 41 upper end is sealingly fastened in valve gap 2 lower end, also comprise and be connected to valve rod upper end and the connecting shaft drive unit 5 be elevated for actuate valve stem, this connecting shaft drive unit 5 includes and drives base 51, couple axle 52 and locking nut 53, base 51 is driven to be fixedly connected on the upper end of valve gap 2, the rotation inner chamber 511 of upper end open is provided with in described driving base 51, described couple axle 52 rotates to be arranged at and rotates in inner chamber 511, the sidewall of this couple axle 52 is provided with rotating support bulge loop 521, support between the lower end surface of described rotating support bulge loop 521 and the diapire rotating inner chamber 511 and be provided with lower plane bearing 54, described locking nut 53 is screwed on and rotates on the inwall of inner chamber 511 relative to the axial outer end of rotating support bulge loop 521, and support between this locking nut 53 and rotating support bulge loop 521 and be provided with plane bearing 55, the center of the axial outer end of described couple axle 52 is provided with driving head 522, the center of the axial inner ends of described couple axle 52 is provided with threaded interior hole 523, the upper end of described valve rod 4 is provided with threaded screw rod section 42, the activity of this threaded screw rod section 42 through drive base 51 bottom centre and with threaded interior hole 523 threaded adapter on it, the center of this couple axle 52 is communicated with the valve rod lifting movable span 524 being provided with diameter and being greater than threaded screw rod section relative to the top of threaded interior hole 523.
In addition, between the inwall of the locking nut 53 described in the present embodiment and the outer wall of couple axle 52, gap is rotatably assorted.The cross section of the driving head 522 described in the present embodiment is regular polygon, general preferably square or regular hexagon.
In addition, valve gap 2 described in the present embodiment is provided with filler inner chamber 21 relative to the upper inside wall of valve rod 4, be provided with filler 6 in this filler inner chamber 21, the upper end of this filler inner chamber 21 is provided with filler pressing sleeve 61, and the upper end of this filler pressing sleeve 61 is fixedly installed hold-down grid 62.
Claims (4)
1. the bellows stop valve with universal joint connecting shaft drive unit, include valve body, valve gap, flap, valve rod and bellows, valve body is provided with valve seat, body cavity is divided into upper chamber and lower chambers by valve seat, the lower end of valve rod is fixed in described flap interlock, and this flap is positioned at upper chamber and adaptive with valve base sealing, the upper end of valve gap is passed on the top of described valve rod, bellows-sheathed is located on valve rod, bellows lower end is welded with valve rod, bellows upper end is sealingly fastened in valve gap lower end, it is characterized in that: also comprise and be connected to valve rod upper end and the connecting shaft drive unit be elevated for actuate valve stem, this connecting shaft drive unit includes driving base, couple axle and locking nut, base is driven to be fixedly connected on the upper end of valve gap, the rotation inner chamber of upper end open is provided with in described driving base, described couple axle rotates to be arranged at and rotates in inner chamber, the sidewall of this couple axle is provided with rotating support bulge loop, support between the lower end surface of described rotating support bulge loop and the diapire rotating inner chamber and be provided with lower plane bearing, described locking nut is screwed on and rotates on the inwall of inner chamber relative to the axial outer end of rotating support bulge loop, and support between this locking nut and rotating support bulge loop and be provided with plane bearing, the center of the axial outer end of described couple axle is provided with driving head, the center of the axial inner ends of described couple axle is provided with threaded interior hole, the upper end of described valve rod is provided with threaded screw rod section, this threaded screw rod section activity through drive base bottom centre and with the threaded interior hole threaded adapter on it, the center of this couple axle is communicated with the valve rod lifting movable span being provided with diameter and being greater than threaded screw rod section relative to the top of threaded interior hole.
2. a kind of bellows stop valve with universal joint connecting shaft drive unit according to claim 1, is characterized in that: between the inwall of described locking nut and the outer wall of couple axle, gap is rotatably assorted.
3. a kind of bellows stop valve with universal joint connecting shaft drive unit according to claim 1, is characterized in that: the cross section of described driving head is regular polygon.
4. a kind of bellows stop valve with universal joint connecting shaft drive unit according to claim 1, it is characterized in that: described valve gap is provided with filler inner chamber relative to the upper inside wall of valve rod, filler is provided with in this filler inner chamber, the upper end of this filler inner chamber is provided with filler pressing sleeve, and the upper end of this filler pressing sleeve is fixedly installed hold-down grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520915497.XU CN205118267U (en) | 2015-11-16 | 2015-11-16 | Bellows stop valve with universal joint is shaft drive even |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520915497.XU CN205118267U (en) | 2015-11-16 | 2015-11-16 | Bellows stop valve with universal joint is shaft drive even |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205118267U true CN205118267U (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520915497.XU Active CN205118267U (en) | 2015-11-16 | 2015-11-16 | Bellows stop valve with universal joint is shaft drive even |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205118267U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035870A (en) * | 2017-04-26 | 2017-08-11 | 成都大学 | A kind of feed screw nut drive-type DC stop valve |
-
2015
- 2015-11-16 CN CN201520915497.XU patent/CN205118267U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035870A (en) * | 2017-04-26 | 2017-08-11 | 成都大学 | A kind of feed screw nut drive-type DC stop valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |