CN204284618U - A kind of top row's formula outlet valve - Google Patents
A kind of top row's formula outlet valve Download PDFInfo
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- CN204284618U CN204284618U CN201420707340.3U CN201420707340U CN204284618U CN 204284618 U CN204284618 U CN 204284618U CN 201420707340 U CN201420707340 U CN 201420707340U CN 204284618 U CN204284618 U CN 204284618U
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Abstract
A kind of top row's formula outlet valve, comprise valve body, valve gap and valve rod, float and lever is provided with in valve pocket, the channel roof of valve gap is provided with dust cap, the side of dust cap is provided with exhaust port, one end of lever is connected with float, the other end is connected with valve rod, the guide element that one occurs draining phenomenon when descaling line pressure can be prevented to fluctuate is arranged with on the top of valve rod, the outer circumferential face of guide element is provided with the deflation area being convenient to be vented, the vias inner walls of the valve gap of guide element lower end is provided with the step confined planes offseted with guide element, when valve intracavity gas increases, during pressure increase, in valve pocket, the water surface declines, float is with water level decreasing, valve rod moves down under the effect of lever, outlet valve is opened, after gas drains, water level rises, and floating drum rises thereupon, and valve rod up moves under the effect of lever, exhaust valve closure.The utility model structure is simple, exhaust and convenient, good seal performance, effectively improves the working life of outlet valve.
Description
Technical field
The utility model belongs to valve technology field, is specifically related to the top row formula outlet valve of a kind of valve rod with guide structure.
Background technique
Outlet valve row is applied to the pipeline air exhaust waters such as independent heating system, central heating system, heating boiler, central air-conditioner, floor heating and solar heating system.Outlet valve is generally installed on system peak, generally comprise valve body, floating drum (or ball float etc.) is provided with in valve body, floating drum is connected with one end of lever, the other end of lever is connected with the Sealing in relief opening, utilizes gas, liquid to realize opening or closing of relief opening to the lifting of floating drum and lever principle and reaches exhaust object.When gas enters the top that outlet valve valve pocket is gathered in outlet valve, the pressure that its object is in holding chamber is constant; Along with increasing of gas in valve, pressure increase, when gas pressure is greater than system pressure, gas can make the water surface in chamber decline, and floating drum declines with water level, opens relief opening; After gas drains, water level rises, and floating drum also rises thereupon, closes relief opening.
The side-type that has comparatively conventional at present arranges formula valve and top row's formula outlet valve.The advantage of side-type is: compact structure, product weight are light, and shortcoming is: (1) exhaust cross section is less, and exhaust velocity is slow; (2) be vented reliability low, occur sometimes not being vented or draining phenomenon.The advantage of top row's formula is: exhaust cross section is comparatively large, and exhaust velocity is fast; Shortcoming is: because valve rod is without guiding, there will be draining phenomenon when descaling line pressure fluctuates, and reduces seal life, affects product working life.
Through looking into, the existing patent No. is the Chinese invention patent " a kind of safety exhaust " of CN201210489367.5, comprise valve body, mangetic core assembly and switching spool, mangetic core assembly, comprise spool and spool support, spool support is connected with the upper end-hole of valve body with screw thread, there is cone shape hole at the liquid outlet place of spool support, the top of spool support is spring housing, it is taper in the middle part of spool, connecting rod block tongue is arranged at spool bottom, spool top is cylindrical body, the cylindrical body of spool is through extending in spring housing after the cone shape hole on spool support, revolve after cylindrical body being set with spring and establish the first back of the body cap, spool pedestal upper end revolves establishes the second back of the body cap, the sidewall of the second back of the body cap offers exhaust port, switching spool, comprises connecting rod and ball float, and connecting rod right-hand member is supported on the valve rod block tongue of spool bottom, and connecting rod is connected with valve body by bearing pin, and the other end of connecting rod is connected with ball float.The valve rod of this outlet valve does not have guide structure yet, and therefore, the top row's formula outlet valve developing a kind of tape guide is the important topic needing at present to solve.
Summary of the invention
Technical problem to be solved in the utility model be provide for the above-mentioned state of the art that a kind of structure is simple, valve rod is with top row's formula outlet valve of guide structure, can ensure that Sealing will cause because of water pressure fluctuations the life-span to decline, effectively improve the working life of outlet valve.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of top row's formula outlet valve, comprise valve body, valve gap and valve rod, described valve body and valve bonnet seal are connected to form a valve pocket, float and lever is provided with in valve pocket, valve rod can be arranged in the upper channel of valve gap up and downly, it is characterized in that: the channel roof of described valve gap is provided with dust cap, the side of dust cap is provided with exhaust port, one end of described lever is connected with the upper end of float, the other end is connected with the lower end of valve rod, the guide element that one occurs draining phenomenon when descaling line pressure can be prevented to fluctuate is arranged with on the top of valve rod, the outer circumferential face of guide element is provided with deflation area, the vias inner walls of the valve gap of guide element lower end is provided with the step confined planes offseted with guide element.
As improvement, described guide element is adopt the guide sleeve drawing special-shaped rod and be made, the ring side face of guide sleeve is that toothed surface is communicated with formation deflation area with the fluting of guide sleeve bottom surface, the excircle diameter of toothed surface is 6.3 ~ 6.5mm, the inner circumference diameter 5.3 ~ 5.4mm of toothed surface, each addendum angle 85 ~ 95 °, 115 ~ 125 °, transition angle at the bottom of tooth.
As improvement, the valve rod below described guide sleeve is provided with spring seat, and spring seat is provided with Returnning spring, and Returnning spring is set in the middle part of valve rod, is supported between the vias inner walls of valve gap and spring seat.
As improvement, the bottom of described valve rod, in cone cylinder, is equipped with in the passage lower end of valve gap and coordinates the first O-ring seals of channel seal with this cone cylinder.
As improvement, the channel bottom of described valve gap is provided with the annular groove of setting for the first O-ring seals.
Improve, the lower end of described cone cylinder is provided with the joint be connected with lever again, adopts and be actively coupled between lever and float, joint.
Improve, the upper end of described guide sleeve is provided with fixing back-up ring again.
Further improvement, described valve body is threaded with adopting between valve gap, is lined with the second O-ring seals, is connected to a bearing at the lower ending opening place thread bush of valve body between valve body and valve gap.
Further improvement, the sliding sleeve being provided with filter screen is arranged with in one in described bearing, the edge, upper end of sliding sleeve is arranged between the bottom of valve body and the inwall of bearing, a catch is provided with between the edge, upper end and the sealed bottom face of valve body of sliding sleeve, between the edge, upper end and bearing inwall of sliding sleeve, be supported with spring, make sliding sleeve have all the time upwards with the trend of valve seal.
Improve further again, between described bearing and valve body, be lined with the 3rd O-ring seals.
Compared with prior art, the utility model has the advantage of: guide sleeve is set on valve rod, can ensure that Sealing will cause because of water pressure fluctuations the life-span to decline; Guide sleeve adopts the special-shaped rod of drawing to be made, and the space that toothed surface is formed ensure that enough exhaust cross sections; Utilize lever principle, be vented easy and convenient; Lever and all employings between float and valve rod are actively coupled, and are connected firmly, not easily throw off; Valve rod arranges Returnning spring, makes valve rod can be corresponding flexible with the motion of lever, ensure the sealing under not exhaust situation.The utility model structure is simple, exhaust and convenient, good seal performance, effectively improves the working life of outlet valve, has obvious effect to raising thermal cycle, heating effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of sliding sleeve in Fig. 1;
Fig. 3 is the plan view of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As Fig. 1, 2, shown in 3, a kind of top row's formula outlet valve, comprise valve body 1, valve gap 2, valve rod 3 and bearing 14, valve gap 2 is threaded connection and is arranged on above valve body 1, bearing 14 is threaded connection and is arranged on below valve body 1, the second O-ring seals 12 is lined with at valve gap 2 and valve body 1, the 3rd O-ring seals 13 is lined with between bearing 14 and valve body 1, valve body 1, a valve pocket 1.1 is formed after valve gap 2 and bearing 14 are tightly connected, float 9 and lever 6 is provided with in valve pocket 1.1, valve rod 3 can be arranged in the upper channel of valve gap 2 up and downly, dust cap 5 is provided with in the channel roof of valve gap 2, the side of dust cap 5 is provided with exhaust port, one end of lever 6 is connected with the upper end of float 9, the other end is connected with the lower end of valve rod 3, the guide element that one occurs draining phenomenon when descaling line pressure can be prevented to fluctuate is arranged with on the top of valve rod 3, the upper end of guide element is provided with fixing back-up ring 10, guide element is adopt the guide sleeve 4 drawing special-shaped rod and be made, the ring side face of guide sleeve 4 is that toothed surface 41.1 is communicated with formation deflation area 41 with the fluting 41.2 of guide sleeve bottom surface, the excircle diameter D of toothed surface is 6.4mm, the inner circumference diameter d of toothed surface is 5.38mm, each addendum angle A 90 °, transition angle B 120 ° at the bottom of tooth, due on the outer circumferential face of guide sleeve 4 in be convenient to be vented deflation area 41, deflation area 41 main body is toothed surface, the space that such toothed surface is formed ensure that enough exhaust cross sections, particularly add the degree of depth and the width of tooth, there is large passage section, make exhaust more easy and convenient, the vias inner walls of the valve gap 2 of guide sleeve 4 lower end is provided with the step confined planes 21 offseted with guide sleeve 4, in order to ensure the sealing of valve body 1 under not exhaust situation, valve rod 3 below guide sleeve 4 is provided with spring seat 7, spring seat 7 is provided with Returnning spring 8, Returnning spring 8 is set in the middle part of valve rod 3, be supported between the vias inner walls of valve gap 2 and spring seat 7, make valve rod can stretch along with the motion of lever is corresponding like this, ensure in not exhaust situation sealing, the bottom of valve rod 3 is in cone cylinder 31, an annular groove is provided with in the channel bottom of valve gap 2, be equipped with in annular groove and coordinate the first O-ring seals 11 of channel seal with this cone cylinder 31, in addition, be provided with in the lower end of cone cylinder 31 joint 32 be connected with lever 6, adopt between lever 6 and float 9, joint 32 and be actively coupled, lever 6 adopts axle to be connected with being actively coupled of float 9, lever 6 adopts plug-in card to be connected with being actively coupled of joint 32, makes to be connected firmly, not easily throws off, like this, when increasing of gas in valve pocket 1.1, when pressure increase to gas pressure is greater than system pressure, in valve pocket 1.1, the water surface declines, float 9 is with water level decreasing, the elastic force that now valve rod 3 overcomes Returnning spring 8 under the effect of lever 6 moves down, and cone cylinder 31 and the first O-ring seals 11 depart from sealing, and gas can be discharged along the deflation area 41 of guide sleeve 4 from the exhaust port of dust cap 5, after gas drains, water level rises, and float 9 rises thereupon, and valve rod 3 up moves under the elastic force effect of lever 6 and Returnning spring 8, cone cylinder 31 and the first O-ring seals 11 gluing, sealing again, vent closure, the sliding sleeve 15 being provided with filter screen 16 is arranged with in one in bearing 14, the edge, upper end of sliding sleeve 15 is arranged between the bottom of valve body 1 and the inwall of bearing 14, a catch 18 is provided with between the edge, upper end and the sealed bottom face of valve body 1 of sliding sleeve 15, between the edge, upper end of sliding sleeve 15 and bearing 14 inwall, be supported with spring 17, make sliding sleeve 15 have the trend upwards sealed with valve body 1 all the time.
Working principle is such: along with water level in valve pocket 1.1 rises, float 9 upwards floats, and utilizes lever principle, and the valve rod 3 be connected with lever 6 moves up under the elastic force effect of Returnning spring 8, cone cylinder 31 and the first O-ring seals 11 gluing, sealing, exhaust valve closure; Valve pocket 1.1 upper end gas increases, pressure strengthens, in valve pocket 1.1, the water surface declines, the float 9 that lever 6 the other end connects will move down, thus be with ovable valve stem 3 to move down by lever 6, cone cylinder 31 and the first O-ring seals 11 depart from sealing, and gas is discharged from the exhaust port of dust cap 5, reach external pressure identical with system pressure, finally realize scavenging action.
Claims (10)
1. top row's formula outlet valve, comprise valve body, valve gap and valve rod, described valve body and valve bonnet seal are connected to form a valve pocket, float and lever is provided with in valve pocket, valve rod can be arranged in the upper channel of valve gap up and downly, it is characterized in that: the channel roof of described valve gap is provided with dust cap, the side of dust cap is provided with exhaust port, one end of described lever is connected with the upper end of float, the other end is connected with the lower end of valve rod, the guide element that one occurs draining phenomenon when descaling line pressure can be prevented to fluctuate is arranged with on the top of valve rod, the outer circumferential face of guide element is provided with deflation area, the vias inner walls of the valve gap of guide element lower end is provided with the step confined planes offseted with guide element.
2. top according to claim 1 row's formula outlet valve, it is characterized in that: described guide element is adopt the guide sleeve drawing special-shaped rod and be made, the ring side face of guide sleeve is that toothed surface is communicated with formation deflation area with the fluting of guide sleeve bottom surface, the excircle diameter of toothed surface is 6.3 ~ 6.5mm, the inner circumference diameter 5.3 ~ 5.4mm of toothed surface, each addendum angle 85 ~ 95 °, 115 ~ 125 °, transition angle at the bottom of tooth.
3. top according to claim 2 row's formula outlet valve, it is characterized in that: the valve rod below described guide sleeve is provided with spring seat, spring seat is provided with Returnning spring, and Returnning spring is set in the middle part of valve rod, is supported between the vias inner walls of valve gap and spring seat.
4. top according to claim 3 row's formula outlet valve, is characterized in that: the bottom of described valve rod, in cone cylinder, is equipped with in the passage lower end of valve gap and coordinates the first O-ring seals of channel seal with this cone cylinder.
5. top according to claim 4 row's formula outlet valve, is characterized in that: the channel bottom of described valve gap is provided with the annular groove of setting for the first O-ring seals.
6. top according to claim 4 row's formula outlet valve, is characterized in that: the lower end of described cone cylinder is provided with the joint be connected with lever, adopts and be actively coupled between lever and float, joint.
7. top according to claim 1 row's formula outlet valve, is characterized in that: the upper end of described guide sleeve is provided with fixing back-up ring.
8. the top row's formula outlet valve according to the arbitrary claim of claim 1 to 7, it is characterized in that: described valve body is threaded with adopting between valve gap, between valve body and valve gap, be lined with the second O-ring seals, be connected to a bearing at the lower ending opening place thread bush of valve body.
9. top according to claim 8 row's formula outlet valve, it is characterized in that: in described bearing, be arranged with in one the sliding sleeve being provided with filter screen, the edge, upper end of sliding sleeve is arranged between the bottom of valve body and the inwall of bearing, a catch is provided with between the edge, upper end and the sealed bottom face of valve body of sliding sleeve, between the edge, upper end and bearing inwall of sliding sleeve, be supported with spring, make sliding sleeve have all the time upwards with the trend of valve seal.
10. top according to claim 8 row's formula outlet valve, is characterized in that: be lined with the 3rd O-ring seals between described bearing and valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707340.3U CN204284618U (en) | 2014-11-21 | 2014-11-21 | A kind of top row's formula outlet valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420707340.3U CN204284618U (en) | 2014-11-21 | 2014-11-21 | A kind of top row's formula outlet valve |
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| Publication Number | Publication Date |
|---|---|
| CN204284618U true CN204284618U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420707340.3U Active CN204284618U (en) | 2014-11-21 | 2014-11-21 | A kind of top row's formula outlet valve |
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| CN (1) | CN204284618U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812606A (en) * | 2019-04-02 | 2019-05-28 | 威海旭日过滤器有限公司 | A kind of exhaust valve |
| CN109973699A (en) * | 2019-03-08 | 2019-07-05 | 河南宇宙流体科技有限公司 | A kind of efficient high-speed exhaust valve |
| CN113063022A (en) * | 2021-04-27 | 2021-07-02 | 安徽红星阀门有限公司 | Micro exhaust valve |
| CN113685599A (en) * | 2021-09-02 | 2021-11-23 | 上海欧特莱阀门机械有限公司 | Backflow-preventing exhaust valve |
-
2014
- 2014-11-21 CN CN201420707340.3U patent/CN204284618U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973699A (en) * | 2019-03-08 | 2019-07-05 | 河南宇宙流体科技有限公司 | A kind of efficient high-speed exhaust valve |
| CN109812606A (en) * | 2019-04-02 | 2019-05-28 | 威海旭日过滤器有限公司 | A kind of exhaust valve |
| CN109812606B (en) * | 2019-04-02 | 2024-02-09 | 威海旭日过滤器股份有限公司 | Exhaust valve |
| CN113063022A (en) * | 2021-04-27 | 2021-07-02 | 安徽红星阀门有限公司 | Micro exhaust valve |
| CN113063022B (en) * | 2021-04-27 | 2023-04-18 | 安徽红星阀门有限公司 | Micro exhaust valve |
| CN113685599A (en) * | 2021-09-02 | 2021-11-23 | 上海欧特莱阀门机械有限公司 | Backflow-preventing exhaust valve |
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