CN207034290U - A kind of non-return self-locking stop valve - Google Patents
A kind of non-return self-locking stop valve Download PDFInfo
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- CN207034290U CN207034290U CN201720896917.3U CN201720896917U CN207034290U CN 207034290 U CN207034290 U CN 207034290U CN 201720896917 U CN201720896917 U CN 201720896917U CN 207034290 U CN207034290 U CN 207034290U
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- valve
- cabin
- stop valve
- check
- valves
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Abstract
It the utility model is related to valve technology field, more particularly to a kind of non-return self-locking stop valve.The utility model provides following technical scheme：A kind of non-return self-locking stop valve, including valve body, check-valves valve cabin, stop valve valve cabin, valve body both ends are respectively inlet tube and outlet, connecting cabin is provided with valve body, check-valves valve cabin is located on connecting cabin close to outlet side, check-valves valve cabin is provided with check-valves flap with connecting cabin intersection, check-valves flap is provided with flap guide pillar, flap guide pillar is located in tubular guide pin bushing, tubular guide pin bushing is located at the lower surface of check-valves bonnet, stop valve valve cabin is located on connecting cabin close to inlet tube side, stop valve valve cabin is provided with stop valve clack with connecting cabin intersection, stop valve clack is located at the lower end of valve rod, the top of valve rod is provided with handwheel, the stop valve is provided with self-locking device.Using above-mentioned technical proposal, there is provided a kind of non-return self-locking stop valve, with self-locking device, solve the problems, such as opening by mistake, missing pass for stop valve.
Description
Technical field
It the utility model is related to valve technology field, more particularly to a kind of non-return self-locking stop valve.
Background technology
Stop valve, it is a kind of most popular valve.It is more resistance to because frictional force is small between sealing surface during opening and closing
With Lift is little, easy to manufacture, easy to maintenance, is applicable not only to mesolow environment, and be applied to hyperbaric environment.Cut
Only the closure principle of valve is, by valve stem pressure, valve clack sealing surface is brought into close contact with sealing surface of seat, prevents flow of media.
Because stop valve does not have check function, when stop valve is in opening, the fluid in outlet plenum is possible to meeting
Flow back, be easily accessible ducts upstream and pollute, so generally using stop valve and check-valves simultaneously, pass through both valves
Door carrys out the flow direction of flow media in control pipeline.But so installation can be comparatively laborious, assembling is often.Researcher is for above-mentioned
Situation combines the two, have developed the stop valve with check function.
Sometimes, some stop valves are quiescing in process of production, by taking thermal power plant as an example, in thermal power generation
The important pressure protective system of many of factory, can use stop valve in these pressure protective systems, be generally used for pressure and draw
Go out, blowdown, protection test etc..But these valves are generally all the scattered production scenes that is distributed in, therefore in some cases may be used
It can be opened by mistake by people or close by mistake, not occur the stop valve with the self-locking device for preventing maloperation also at present.
The content of the invention
For above-mentioned the problem of proposing in the prior art, the utility model provides a kind of non-return self-locking stop valve, carries
Self-locking device, solve the problems, such as opening by mistake, missing pass for stop valve.
To achieve the above object, the utility model provides following technical scheme：A kind of non-return self-locking stop valve, including valve
Body, check-valves bonnet, stop valve bonnet, valve rod, check-valves flap, stop valve clack and handwheel, the valve body include inlet tube,
Outlet, connecting cabin, check-valves valve cabin and stop valve valve cabin, wherein outlet and inlet tube are sequentially arranged at the both ends in valve body,
Connecting cabin is located in valve body, and check-valves valve cabin is located on connecting cabin close to outlet side, check-valves valve cabin and connecting cabin intersection
Provided with check-valves flap, check-valves flap is provided with flap guide pillar, and flap guide pillar is located in tubular guide pin bushing, and tubular guide pin bushing is located at only
The lower surface of valve bonnet is gone back to, check-valves bonnet is fixed on the top in check-valves valve cabin, and stop valve valve cabin is located at close on connecting cabin
Inlet tube side, stop valve valve cabin are provided with stop valve clack with connecting cabin intersection, and stop valve clack is located at the lower end of valve rod, valve rod
It is fixed on stop valve bonnet, stop valve bonnet is fixed on stop valve valve cabin top, and the top of valve rod is provided with handwheel, and handwheel is fixed
On valve rod, the stop valve is provided with self-locking device.
Using above-mentioned technical proposal, self-locking device is set on stop valve, generally, valve is mounted in weight
In the pressure system wanted, therefore system is even more important safely, and a kind of non-return self-locking stop valve is provided in the utility model, is passed through
Self-locking device prevents opening by mistake, missing pass problem for valve, so as to improve the security of valve, ensure that the person of staff
Safety.
Further, the self-locking device includes substrate, shackle member and locking member, is arranged with packing outside valve rod, substrate is in
Plate-like is set in outside packing, and locking member includes the installation portion being connected with substrate and the through hole being arranged on installation portion, locking
Screw and locking screw pit, the shackle member is through through hole and can be slided along through hole, and lock screw locks screwed hole locking
Shackle member.
Using above-mentioned technical proposal, by making shackle member be slided towards the direction close to or away from handwheel to block or release
Let go wheel, when desired locking handwheel prevents its rotation, shackle member can be made to be slided towards close to the direction of handwheel by locking member
It is dynamic, so that shackle member blocks handwheel, if it is desired to when operating handwheel and making its rotation, shackle member direction can be made by locking member
Direction away from handwheel is slided, so that shackle member discharges handwheel.
Further, the outline of the handwheel is provided with multiple grooves, and one end of the shackle member is stuck in the groove
In.
Using above-mentioned technical proposal, shackle member is simple in construction by pinning handwheel with groove clamping, easy to operation.
Further, the substrate includes fixed screw, is radially provided with substrate for wearing the fixation
The fixing screwed hole of screw, by passing through fixing screwed hole against packing with the fixation substrate fixed screw.
Using above-mentioned technical proposal, substrate can be fixed on packing.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment；
Fig. 2 is the structural representation of self-locking device and handwheel in the utility model embodiment.
Embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
A kind of non-return self-locking stop valve as shown in Figure 1 and Figure 2, including valve body 1, check-valves bonnet 8, stop valve bonnet 13,
Valve rod 12, check-valves flap 3, stop valve clack 10 and handwheel 15, the valve body include inlet tube 9, outlet 4, connecting cabin 2,
Check-valves valve cabin 5 and stop valve valve cabin 11, wherein outlet 4 and inlet tube 9 are sequentially arranged at the both ends in valve body 1, and connecting cabin 2 is set
In valve body 1, check-valves valve cabin 5 is located on connecting cabin 2 close to the side of outlet 4, and check-valves valve cabin 5 is set with the intersection of connecting cabin 2
There is check-valves flap 3, check-valves flap 3 is provided with flap guide pillar 6, and flap guide pillar 6 is located in tubular guide pin bushing 7, and tubular guide pin bushing 7 is set
In the lower surface of check-valves bonnet 8, check-valves bonnet 8 is fixed on the top in check-valves valve cabin 5, and stop valve valve cabin 11 is located at connection
Stop valve clack 10 is provided with the intersection of connecting cabin 2 close to the side of inlet tube 9, stop valve valve cabin 11 on cabin 2, stop valve clack 10 is set
In the lower end of valve rod 12, valve rod 12 is fixed on stop valve bonnet 13, and stop valve bonnet 13 is fixed on the top of stop valve valve cabin 11,
The top of valve rod 12 is provided with handwheel 15, and handwheel 15 is fixed on valve rod 12, and the stop valve is provided with self-locking device 14.
Described check-valves flap 3 is provided with the tubular guide pin bushing 7 being adapted to flap guide pillar 6, and the cavity of the tubular guide pin bushing 7 has
Certain depth, and check-valves flap 8 is sheathed on flap guide pillar 6 by the tubular guide pin bushing 7.So pass through check-valves flap 3
It is arranged, that is, movable matching relationship be present in both, check-valves flap 3 and flap guide pillar 6 are up and down, i.e., in connecting cabin 2
It is up under media impingement, and can outlet 4 medium drive in the wrong direction when the descending check-valves valve cabin 5 that props up to close valve, this
When just serve the effect of check-valves, when need to close valve do not allow flow of media when, it is only necessary to made by operating mechanism
Valve rod 12 goes downwards to the closing that bottom can be achieved with valve body 1, serves the effect of stop valve；Set certainly on stop valve
Locking device 14, the opening by mistake of valve, by mistake pass problem are prevented by self-locking device 14, so as to improve the security of valve.
The self-locking device includes substrate 16, shackle member 19 and locking member, is arranged with packing 18 outside valve rod 12, substrate 16 is in
Plate-like is set in outside packing 18, and locking member includes the installation portion 23 being connected with substrate 16 and is arranged on logical on installation portion 23
Hole 20, lock screw 21 and locking screw pit 22, the shackle member 19 is through through hole 20 and can be slided along through hole 20, lock screw
Lock screwed hole locking shackle member 19.By making shackle member 19 be slided towards the direction close to or away from handwheel 15 and card
Firmly or handwheel is discharged, when desired locking handwheel 15 prevents its rotation, shackle member 19 can be made by locking member towards close to hand
The direction of wheel is slided, so that shackle member 19 blocks handwheel 15, if it is desired to when operating handwheel and making its rotation, can pass through locking
Part make shackle member 19 be directed away from handwheel 15 direction slide so that shackle member 19 discharge handwheel 15.
The outline of the handwheel 15 is provided with multiple grooves, and one end of the shackle member 19 is stuck in the groove.Institute
It can be shaft-like to state shackle member 19, and one end described in shackle member 19 is stuck in above-mentioned groove, other end locking, so as to realize lock
Only handwheel 15.
The substrate 16 includes fixed screw 24, is radially provided with substrate 16 for wearing the fixed screw
24 fixing screwed hole 17, by passing through fixing screwed hole 17 against packing 18 with the fixation substrate 16 fixed screw 24.
In addition, substrate 16 can also be fixed with packing 18 by other means.
Preferred embodiment of the present utility model, still, the utility model and unlimited is described in detail above in association with accompanying drawing
Detail in above-mentioned embodiment, can be to skill of the present utility model in range of the technology design of the present utility model
Art scheme carries out a variety of simple variants, and these simple variants belong to the scope of protection of the utility model.
Claims (4)
1. a kind of non-return self-locking stop valve, including valve body, check-valves bonnet, stop valve bonnet, valve rod, check-valves flap, cut-off
Valve flap and handwheel, the valve body include inlet tube, outlet, connecting cabin, check-valves valve cabin and stop valve valve cabin, its middle outlet
Pipe and inlet tube are sequentially arranged at both ends in valve body, and connecting cabin is located in valve body, and check-valves valve cabin is located on connecting cabin close to going out
Mouth pipe side, check-valves valve cabin are provided with check-valves flap with connecting cabin intersection, and check-valves flap is provided with flap guide pillar, and flap is led
Post is located in tubular guide pin bushing, and tubular guide pin bushing is located at the lower surface of check-valves bonnet, and check-valves bonnet is fixed on check-valves valve cabin
Top, stop valve valve cabin is located on connecting cabin is provided with stop valve valve close to inlet tube side, stop valve valve cabin with connecting cabin intersection
Valve, stop valve clack are located at the lower end of valve rod, and valve rod is fixed on stop valve bonnet, and stop valve bonnet is fixed on stop valve valve cabin
Top, the top of valve rod are provided with handwheel, and handwheel is fixed on valve rod, it is characterised in that：The stop valve is provided with self-locking device.
2. non-return self-locking stop valve according to claim 1, it is characterised in that：The self-locking device includes substrate, clamping
Part and locking member, valve rod are arranged with packing outside, and substrate is disc-shaped to be set in outside packing, and locking member includes the peace being connected with substrate
The dress portion and through hole being arranged on installation portion, lock screw and locking screw pit, the shackle member through through hole and can along lead to
Hole is slided, and lock screw locks screwed hole locking shackle member.
3. non-return self-locking stop valve according to claim 2, it is characterised in that：The outline of the handwheel is provided with multiple
Groove, one end of the shackle member are stuck in the groove.
4. the non-return self-locking stop valve according to Claims 2 or 3, it is characterised in that：The substrate includes fixed screw, base
The fixing screwed hole for wearing the fixed screw is radially provided with part, by the way that fixed screw is passed through into fixed spiral shell
Pit is against packing with the fixation substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720896917.3U CN207034290U (en) | 2017-07-21 | 2017-07-21 | A kind of non-return self-locking stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720896917.3U CN207034290U (en) | 2017-07-21 | 2017-07-21 | A kind of non-return self-locking stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034290U true CN207034290U (en) | 2018-02-23 |
Family
ID=61465344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720896917.3U Active CN207034290U (en) | 2017-07-21 | 2017-07-21 | A kind of non-return self-locking stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207034290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953223A (en) * | 2019-12-31 | 2020-04-03 | 三一重机有限公司 | Oil suction pipeline assembly, hydraulic oil tank and excavator |
-
2017
- 2017-07-21 CN CN201720896917.3U patent/CN207034290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953223A (en) * | 2019-12-31 | 2020-04-03 | 三一重机有限公司 | Oil suction pipeline assembly, hydraulic oil tank and excavator |
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