CN203463716U - Manual three-way control valve - Google Patents
Manual three-way control valve Download PDFInfo
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- CN203463716U CN203463716U CN201320457719.9U CN201320457719U CN203463716U CN 203463716 U CN203463716 U CN 203463716U CN 201320457719 U CN201320457719 U CN 201320457719U CN 203463716 U CN203463716 U CN 203463716U
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Abstract
The utility model provides a manual three-way control valve. The manual three-way control valve comprises a valve body, a valve core, a valve rod, a support and the like; the support is fixed at the top end of the valve body; the valve rod penetrates the support; the lower end of the valve rod is fixedly connected with the valve core; a supporting seat is fixedly arranged at the top of the support; a gland is fixedly arranged at the top end of the supporting seat; through holes which are communicated with each other are formed inside the supporting seat and the gland; a lead screw is arranged inside the through holes in a penetrating mode; the middle of the lead screw comprises a limiting flange which extends in the radial direction; the through hole of the supporting seat comprises a limiting step which is matched with the limiting flange located between the limiting step and the gland; the upper end of the lead screw extends out of the gland to be in screwed connection with a lock nut; the lower end of the lead screw is connected with the upper end of the valve rod through a screw nut; the screw nut sides up and down in the through hole of the supporting seat to be matched with the through hole of the supporting seat; one side of the support is provided with a scale; the valve rod is provided with an indicating part. According to the manual three-way control valve, the axial movement of the valve rod and the valve core due to the vibration can be prevented and the stroke of the valve rod can be observed at any time and accordingly the flow rate and the flow direction of the fluid can be controlled.
Description
Technical field
The utility model relates to industrial process control valve field, particularly relates to a kind of manual three-way modulating valve.
Background technique
In industrial piping system automation is controlled, often a kind of fluid need to be divided into two tunnels and flow out or two kinds of fluids are merged into a kind of fluid, or need to change the flow direction or the flow velocity of fluid, three-way control valve is exactly a kind of important device with above-mentioned functions.
Common three-way control valve is comprised of valve body, valve rod, spool and actuator etc. conventionally, can realize easily fluid flow to switching controls, but in actual application due to many reasons, as can making three-way control valve, the variation of flow resistance, flow velocity, pressure etc. produces vibration, easily cause valve rod and spool in three-way control valve to produce and move axially with respect to actuator, cause the flow direction, the instability of flow of valve body inner fluid and be difficult to controlling, thereby affect the normal operation of three-way control valve, even can be accidents caused when serious.
Model utility content
The shortcoming of prior art in view of the above, the technical problems to be solved in the utility model is to provide a kind of and prevents that valve rod and spool from moving axially because of generation of vibration, and the inspecting valve throw of lever and then control the three-way control valve of fluid flow and the flow direction at any time.
For solving the problems of the technologies described above, the utility model provides a kind of manual three-way modulating valve, comprise valve body, spool, valve rod and be fixed on the support on described valve body top, described valve body offers left valve port, right valve port and lower valve port, described valve rod is through described support, and lower end is fixedly connected with described spool.Described top of the trellis is fixedly equiped with a supporting base, the top of described supporting base is installed with a gland, the inside of described supporting base and described gland is provided with the through hole communicating with each other, in described through hole, be equipped with a leading screw, described leading screw middle part has the defining flange radially extending, and the through hole of described supporting base has the limited step suitable with the defining flange of described leading screw; Described defining flange is between described limited step and described gland; The upper end of described leading screw is stretched out described gland and is connected with a locking nut spiral, and the lower end of described leading screw is connected with the upper end of described valve rod by a feed screw nut, and feed screw nut slides up and down and coordinates with the through hole of described supporting base; One side of described support is equiped with scale, on described valve rod, is equiped with indication piece; When described spool is positioned at highest order, described indication piece is instructed in the highest scale of described scale, and described left valve port is communicated with described lower valve port, described right valve port sealing; When described spool is positioned at lowest order, described indication piece is instructed in the minimum scale of described scale, and described left valve port is communicated with described right valve port, described lower valve port sealing.
Preferably, corresponding with described scale, the opposite side of described support is equiped with up snubber and descending snubber, and when described indication piece is instructed in the highest scale of described scale, described indication piece is resisted against described up snubber; When described indication piece is instructed in the minimum scale of described scale, described indication piece is resisted against described descending snubber.
Preferably, described leading screw is fixedly connected with a handwheel on top.
Preferably, described locking nut is provided with handle.
Preferably, described lower valve port is fixedly connected with a lower linking tube.
Preferably, between described support and described valve body, be equiped with seal arrangement.
As mentioned above, manual three-way modulating valve described in the utility model, there is following beneficial effect: the stroke of valve rod and spool is visible, can be according to the stroke of valve rod and spool locking spool position at any time, effectively prevent that valve rod and spool are because of generation of vibration slippage, the flow of control valve body inner fluid and the flow direction, simple in structure at any time, easy to operate, energy saving.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of manual three-way modulating valve of the present utility model when spool is positioned at highest order.
Fig. 2 is shown as the partial enlarged drawing of Fig. 1.
Fig. 3 is shown as the structural representation of manual three-way modulating valve of the present utility model when spool is positioned at lowest order.
Fig. 4 is shown as the partial enlarged drawing of Fig. 3.
Embodiment
By particular specific embodiment, mode of execution of the present utility model is described below, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Refer to accompanying drawing.Notice, appended graphic the illustrated structure of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, for person skilled in the art scholar, understand and read, not in order to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the object that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, in this specification, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when being also considered as the enforceable category of the utility model.
Fig. 1 to Fig. 4 is shown as the structural representation of manual three-way modulating valve of the present utility model.As shown in Figures 1 to 4, this manual three-way modulating valve comprises valve body 1, spool 11, valve rod 12 and is fixed on the support 2 on valve body 1 top.Valve body 1 offers left valve port 13, right valve port 14 and lower valve port 15, and lower valve port 15 is fixedly connected with a lower linking tube 7.Valve rod 12 is through support 2, and lower end is fixedly connected with spool 11.
The manual three-way modulating valve that the utility model provides is fixedly equiped with a supporting base 3 at the top of support 2, the top of supporting base 3 is installed with a gland 4, the inside of supporting base 3 and gland 4 is provided with the through hole 31,34 communicating with each other, and is equipped with a leading screw 16 in through hole 31 and through hole 34.For convenience of rotational lead screw 16, on the top of leading screw 16, be fixedly connected with handwheel 17.The middle part of leading screw 16 has the defining flange 161 radially extending, and the through hole 31 of supporting base 3 has the limited step 311 suitable with the defining flange 161 of leading screw 16; Gland 4 has the convex edge 42 of protruding to through hole 31 inside of supporting base 3 vertically.The defining flange 161 of leading screw 16 is between limited step 311 and gland 4, the convex edge 42 of gland 4 is resisted against defining flange 161, the axial displacement of leading screw 16 has been limited in limited step 311 and convex edge 42, makes it can only be in the through hole 31 of supporting base 3 and the interior circumferential rotation of the through hole 41 of gland 4.The upper end of leading screw 16 is stretched out gland 4 and is connected with locking nut 5 spirals. for convenience of locking screw 16, on locking nut 5, be fixedly equiped with handle 51.The lower end of leading screw 16 is connected with the upper end of valve rod 12 by a feed screw nut 6, and feed screw nut 6 slides up and down and coordinates with the through hole 31 of supporting base 3.The circumferential rotation of feed screw nut 6 is restricted, and when leading screw 16 rotates, feed screw nut 6 moves up and down in through hole 31, and then moving up and down with ovable valve stem 12 and spool 11.In embodiment, the axial cross section of feed screw nut 6 is H shape, and the upper end of H shape coordinates with the lower end power screw of leading screw 16, and the fixing upper end that is socketed on valve rod 12, lower end of H shape, prevents from when valve rod 12 from moving up and down shaking.
One side of support 2 is equiped with scale 21, is equiped with indication piece 121 on valve rod 12.Corresponding with scale 21, the opposite side of support 2 is equiped with up snubber 22 and descending snubber 23.
Between support 22 and valve body 1, be equiped with the seal arrangement 8 that prevents that valve body 1 inner fluid from overflowing.In embodiment, sealing device 8 is set on valve rod 12, comprises filler seat 81, is fixed on the Gland 82 on filler seat 81, the filler 83 that is installed in filler seat 81 inside and spring 84.The top of valve body 1 is installed with a bonnet 18, and filler seat 81 is arranged between bonnet 18 and support 2.
Fig. 1 and the schematic diagram that Figure 2 shows that this manual three-way modulating valve when spool 11 is positioned at highest order.As depicted in figs. 1 and 2, now feed screw nut 6 coordinates with the complete spiral of leading screw 16, indication piece 121 and up snubber 22 butts, and be instructed in the highest scale of scale 21.Left valve port 13 in valve body 1 is communicated with lower valve port 15, right valve port 14 sealings.In embodiment, light oil is connected to right valve port 14, and heavy oil is connected to lower valve port 15.Therefore, now heavy oil enters from lower valve port 15, from left valve port 13, flows out.For preventing that three-way control valve when work from, because vibration causes moving axially of leading screw 16 and valve rod 12, need tighten locking nut 5, with flow and the flow direction of stabilized fluid.
While needing valve rod 12 and spool 11 to move down, unclamp locking nut 5, rotating threaded shaft 16 or handwheel 17, leading screw 16 coordinates with feed screw nut 6 power screw, and the circumferential rotation of leading screw 16 drives feed screw nut 6 to move down, and then promotes valve rod 12 and spool 11 moves down.Fig. 3 and the schematic diagram that Figure 4 shows that this manual three-way modulating valve when spool 11 is positioned at lowest order.As shown in Figure 3 and Figure 4, when spool 11 is positioned at lowest order, indication piece 121 is instructed in the minimum scale of scale 21 and is resisted against descending snubber 23, and locking nut 5 is locked in this position by leading screw 16.Now left valve port 13 is communicated with right valve port 14, lower valve port 15 sealings.Light oil enters from right valve port 14, from left valve port 13, flows out.
Flow reaches actual requirement, in the time of need to changing the flow direction of fluid or flow, can make on valve rod 12 and spool 11 and moving.Unclamp locking nut 5, opposite spin leading screw 16 or handwheel 17, valve rod 12 and spool 11 under the drive of feed screw nut 6 with on move, until the highest scale of indication piece 121 indicator scales 21 be resisted against up snubber 22 is got back to position shown in Fig. 1 and Fig. 2.
In sum, the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all can, under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and conventionally know that the knowledgeable modifies or changes not departing from all equivalences that complete under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (6)
1. a manual three-way modulating valve, comprise valve body (1), spool (11), valve rod (12) and be fixed on the support (2) on described valve body (1) top, described valve body (1) offers left valve port (13), right valve port (14) and lower valve port (15), described valve rod (12) is through described support (2), lower end is fixedly connected with described spool (11), it is characterized in that:
Described top of the trellis is fixedly equiped with a supporting base (3), the top of described supporting base is installed with a gland (4), the inside of described supporting base (3) and described gland (4) is provided with the through hole (31 communicating with each other, 41), described through hole (31,41) in, be equipped with a leading screw (16), described leading screw (16) middle part has the defining flange (161) radially extending, and the through hole (31) of described supporting base (3) has the limited step (311) suitable with the defining flange (161) of described leading screw (16); Described defining flange (161) is positioned between described limited step (311) and described gland (4); The upper end of described leading screw (16) is stretched out described gland (4) and is connected with a locking nut (5) spiral, the lower end of described leading screw (16) is connected with the upper end of described valve rod (12) by a feed screw nut (6), and feed screw nut (6) slides up and down and coordinates with the through hole (31) of described supporting base;
One side of described support (2) is equiped with scale (21), is equiped with indication piece (121) on described valve rod (12); When described spool (11) is positioned at highest order, described indication piece (121) is instructed in the highest scale of described scale (21), and described left valve port (13) is communicated with described lower valve port (15), described right valve port (14) sealing; When described spool (11) is positioned at lowest order, described indication piece (121) is instructed in the minimum scale of described scale (21), and described left valve port (13) is communicated with described right valve port (14), described lower valve port (15) sealing.
2. manual three-way modulating valve according to claim 1, it is characterized in that: corresponding with described scale (21), the opposite side of described support (2) is equiped with up snubber (22) and descending snubber (23), when described indication piece (121) is instructed in the highest scale of described scale (21), described indication piece (121) is resisted against described up snubber (22); When described indication piece (121) is instructed in the minimum scale of described scale (21), described indication piece (121) is resisted against described descending snubber (23).
3. manual three-way modulating valve according to claim 1, is characterized in that: described leading screw (16) is fixedly connected with a handwheel (17) on top.
4. manual three-way modulating valve according to claim 1, is characterized in that: described locking nut (5) is provided with handle (51).
5. manual three-way modulating valve according to claim 1, is characterized in that: described lower valve port (15) is fixedly connected with a lower linking tube (7).
6. manual three-way modulating valve according to claim 1, is characterized in that: between described support (2) and described valve body (1), be equiped with seal arrangement (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457719.9U CN203463716U (en) | 2013-07-29 | 2013-07-29 | Manual three-way control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320457719.9U CN203463716U (en) | 2013-07-29 | 2013-07-29 | Manual three-way control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203463716U true CN203463716U (en) | 2014-03-05 |
Family
ID=50176083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320457719.9U Expired - Fee Related CN203463716U (en) | 2013-07-29 | 2013-07-29 | Manual three-way control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203463716U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135046A (en) * | 2015-09-29 | 2015-12-09 | 云南大红山管道有限公司 | Up-and-down limiting auxiliary device for valve switch |
| CN107218430A (en) * | 2016-05-06 | 2017-09-29 | 上海申吉仪表有限公司 | A kind of Pneumatic three-way switching valve |
| CN111894075A (en) * | 2020-07-16 | 2020-11-06 | 东莞市建安集团有限公司 | Environment-friendly energy-saving building water supply and drainage system |
| CN114278764A (en) * | 2022-01-22 | 2022-04-05 | 芜湖市金贸流体科技股份有限公司 | Novel steam pressure reducing valve and working method thereof |
-
2013
- 2013-07-29 CN CN201320457719.9U patent/CN203463716U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135046A (en) * | 2015-09-29 | 2015-12-09 | 云南大红山管道有限公司 | Up-and-down limiting auxiliary device for valve switch |
| CN107218430A (en) * | 2016-05-06 | 2017-09-29 | 上海申吉仪表有限公司 | A kind of Pneumatic three-way switching valve |
| CN111894075A (en) * | 2020-07-16 | 2020-11-06 | 东莞市建安集团有限公司 | Environment-friendly energy-saving building water supply and drainage system |
| CN114278764A (en) * | 2022-01-22 | 2022-04-05 | 芜湖市金贸流体科技股份有限公司 | Novel steam pressure reducing valve and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Hantao Inventor before: Zhang Hao |
|
| COR | Change of bibliographic data | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20210729 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |