CN204784987U - Just, tear formula diaphragm pneumatic film executor open - Google Patents
Just, tear formula diaphragm pneumatic film executor open Download PDFInfo
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- CN204784987U CN204784987U CN201520510090.9U CN201520510090U CN204784987U CN 204784987 U CN204784987 U CN 204784987U CN 201520510090 U CN201520510090 U CN 201520510090U CN 204784987 U CN204784987 U CN 204784987U
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- membrane cover
- diaphragm
- ring
- lower membrane
- guide sleeve
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Abstract
The utility model discloses a just, tear formula diaphragm pneumatic film executor open, upward be equipped with the diaphragm in the cavity between membrane lid and the lower membrane lid, the periphery that goes up membrane lid and lower membrane lid all is equipped with cyclic annular turn -ups, the neighboring clamp of diaphragm is established at last membrane lid under with between the membrane cyclic annular turn -ups approximately, the cyclic annular turn -ups upside of going up the membrane lid is equipped with the clamping ring, the cyclic annular turn -ups downside of membrane lid is equipped with down the clamping ring down, the cross section of clamping ring all was L shape and longitudinal symmetry setting under upward the clamping ring reached, the fixed orifices that corresponds about upward being equipped with on clamping ring and the lower clamping ring, the fixed orifices is located the cyclic annular turn -ups outside of membrane lid and lower membrane lid, is equipped with fixing bolt in the fixed orifices, goes up the membrane lid and is connected fixedly through fixing bolt with lower membrane lid. The utility model discloses the upper and lower membrane lid of executor is fixed through upper and lower clamping ring, dismantles and maintains convenience, good reliability, long service life, has very high practical value.
Description
Technical field
The utility model relates to a kind of actuator of pneumatic control valve, especially a kind of detachable type pneumatic film final controlling element.
Background technique
The diaphragm that existing air bladder final controlling element comprises membrane cover, lower membrane cover and is arranged between described upper and lower membrane cover, the periphery of upper and lower membrane cover is equipped with ring-type flange, the outer periphery of diaphragm is folded between the ring-type flange of upper and lower membrane cover, and fixing bolt is through the ring-type flange of upper and lower membrane cover and the outer periphery of diaphragm.The shortcoming of this structure is demolition and maintenance difficulties, and diaphragm edge needs specialized mould to punch, and the frequent edge hole that uses easily is out of shape, and causes diaphragm breakage to cause final controlling element malfunctioning, thus affects the working life of final controlling element.Publication date is on May 18th, 2011, and publication number is the Normally closed type air bladder final controlling element that the patent document of CN201836511U discloses a kind of valve, comprises support on support, is provided with diaphragm cavity; Described diaphragm cavity is made up of the lower membrane cover of detachable connection and upper membrane cover, and form diaphragm chamber between lower membrane cover and upper membrane cover, diaphragm arrangement is in diaphragm chamber; In diaphragm chamber, be provided with spring, the upper and lower end of spring is separately positioned on lower membrane cover and diaphragm, to diaphragm acting force of the spring; Between diaphragm and upper membrane cover, be provided with gas access; The lower end of push rod coordinates the cavity penetrating support, the upper end of push rod and film contact, diaphragm to drive push rod to move downward.This Normally closed type air bladder actuator structure is simple, and one-piece element is less, and push rod energy easy motion up and down, push rod can drive the stable movement such as spool, valve plate be attached thereto.But this final controlling element is also adopt fixing bolt through the ring-type flange of upper and lower membrane cover and the structure of diaphragm outer periphery, therefore there is the easily damaged and problem that causes final controlling element malfunctioning and final controlling element working life short of final controlling element demolition and maintenance difficulty, diaphragm.
Model utility content
The purpose of this utility model is the pneumatic diaphragn actuating mechanism demolition and maintenance difficulty for solving prior art, the diaphragm problem that easily damaged and final controlling element working life is short and provide the detachable type pneumatic film final controlling element of a kind of demolition and maintenance convenience, good reliability, long service life.
The concrete technological scheme that the utility model solves the problems of the technologies described above employing is, a kind of detachable type pneumatic film final controlling element, comprise membrane cover, lower membrane cover and push rod, upper membrane cover and lower membrane cover are circle, cavity is formed between upper membrane cover and lower membrane cover, diaphragm is provided with in cavity, the periphery of upper membrane cover and lower membrane cover is equipped with ring-type flange, the outer periphery of diaphragm is folded between the ring-type flange of membrane cover and lower membrane cover, the top of diaphragm is provided with diaphragm support, diaphragm support is rounded, diaphragm support is evenly provided with several spring stands along diaphragm support circumference, Compress Spring is provided with between spring stand and upper membrane cover, upper press ring is provided with on the upside of the ring-type flange of upper membrane cover, lower pressure ring is provided with on the downside of the ring-type flange of lower membrane cover, the cross section of upper press ring and lower pressure ring is all L-shaped and be symmetrical arranged up and down, upper press ring and lower pressure ring are provided with fixed hole corresponding up and down, described fixed hole position is outside the ring-type flange of upper membrane cover and lower membrane cover, fixing bolt is provided with in fixed hole, upper membrane cover and lower membrane cover are connected and fixed by fixing bolt.
The utility model arranges upper press ring and lower pressure ring in the outer periphery of upper membrane cover and lower membrane cover, the cross section of upper press ring and lower pressure ring is all L-shaped and be symmetrical arranged up and down, fixing bolt for fixing upper membrane cover, lower membrane cover and diaphragm is arranged on upper press ring outside upper membrane cover and lower membrane cover and lower pressure ring, by upper press ring and lower pressure ring, pressure is applied to upper membrane cover and lower membrane cover, thus fixing upper membrane cover, lower membrane cover and diaphragm.Because fixing bolt is not through upper and lower membrane cover and diaphragm, therefore the peripheral edge of membrane cover and diaphragm is without the need to punching up and down, and so not only final controlling element demolition and maintenance are convenient, and diaphragm is complete structure, breakage can not be there is, therefore final controlling element good reliability, long service life because of hole.
As preferably, be provided with fixed cover between the upper end of push rod and diaphragm support, the upper end of push rod is passed fixed cover and is fixed by set screw nut.
As preferably, the upper and lower surface of diaphragm periphery is equipped with the stiffening rib being raised in diaphragm, and the ring-type flange of upper membrane cover and lower membrane cover is provided with the annular groove corresponding with described stiffening rib.Stiffening rib can prevent diaphragm edge from breaking, and is also conducive to the sealing between upper and lower membrane cover in addition.
As preferably, the below of lower membrane cover is fixed with support, and the joint of support and lower membrane cover is equipped with guide sleeve, and described push rod is located in guide sleeve, and the upper end of push rod is fixedly connected with the middle part of diaphragm support, and guide sleeve is stretched out in the lower end of push rod.
As preferably, lower membrane cover and support are fixed by hex head bolt, are provided with seal washer between hex head bolt and lower membrane cover.
As preferably, guide sleeve is cylindrical, the middle part of cylindrical guide sleeve is provided with bulge loop, support is provided with the groove with bulge loop adaptation, fit in the upper surface of bulge loop and the bottom surface of lower membrane cover, upper surface and the guide sleeve inwall of guide sleeve bulge loop are equipped with seal groove, are provided with O-ring seals in seal groove, described O-ring seals is two, is separately positioned on the two ends up and down of guide sleeve.Push rod the coordinate section longer with guide sleeve can improve the mobile accuracy of push rod, makes it not easily occur radial deflection, thus improves the control accuracy of final controlling element.And seal groove is all set at the upper surface of guide sleeve bulge loop and guide sleeve inwall, O-ring seals is set in seal groove, makes guide sleeve and lower membrane cover, sealing between guide sleeve and push rod strengthens, prevent pneumatic actuator from leaking air.
As preferably, fixing bolt comprises two lifting bolts, and described lifting bolt is symmetrical arranged.
The beneficial effects of the utility model are, it efficiently solves the pneumatic diaphragn actuating mechanism demolition and maintenance difficulty of prior art, the diaphragm problem that easily damaged and final controlling element working life is short, air bladder final controlling element demolition and maintenance convenience of the present utility model, good reliability, long service life, have very high use value.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the utility model detachable type pneumatic film final controlling element;
Fig. 2 is a kind of structure plan view of the utility model detachable type pneumatic film final controlling element.
In figure: 1. go up membrane cover, 2. descend membrane cover, 3. push rod, 4. diaphragm, 5. ring-type flange, 6. diaphragm support, 7. spring stand, 8. Compress Spring, 9. upper press ring, 10. descend pressure ring, 11. fixing bolts, 12. fixed covers, 13. set screw nuts, 14. stiffening ribs, 15. annular grooves, 16. supports, 17. guide sleeves, 18.O shape seal ring.
Embodiment
Below by embodiment, and by reference to the accompanying drawings the concrete technological scheme of the utility model is described in further detail.
Embodiment 1
In the embodiment 1 shown in Fig. 1, a kind of detachable type pneumatic film final controlling element, comprise membrane cover 1, lower membrane cover 2 and push rod 3, upper membrane cover and lower membrane cover are circle, cavity is formed between upper membrane cover and lower membrane cover, diaphragm 4 is provided with in cavity, upper membrane cover and lower membrane cover are tubular, its opening end periphery is equipped with ring-type flange 5, the upper and lower surface of diaphragm periphery is equipped with the stiffening rib 14 being raised in diaphragm, the ring-type flange of upper membrane cover and lower membrane cover is provided with the annular groove 15 corresponding with described stiffening rib, the outer periphery of diaphragm is folded between the ring-type flange of membrane cover and lower membrane cover, the top of diaphragm is provided with diaphragm support 6, diaphragm support is rounded, diaphragm support is evenly provided with several spring stands 7 along diaphragm support circumference, Compress Spring 8 is provided with between spring stand and upper membrane cover, upper press ring 9 is provided with on the upside of the ring-type flange of upper membrane cover, lower pressure ring 10 is provided with on the downside of the ring-type flange of lower membrane cover, the cross section of upper press ring and lower pressure ring is all L-shaped and be symmetrical arranged up and down, its overall U-shaped profile, upper press ring and lower pressure ring are provided with 12 corresponding up and down fixed holes, described fixed hole position is outside the ring-type flange of upper membrane cover and lower membrane cover, fixing bolt 11 is provided with in fixed hole, upper membrane cover and lower membrane cover are connected and fixed by fixing bolt, fixing bolt comprises two lifting bolts, described lifting bolt is symmetrical arranged (see figure 2).
Be provided with fixed cover 12 between the upper end of push rod and diaphragm support, the upper end of push rod is also fixed by set screw nut 13 through fixed cover, is provided with backing plate between push rod and diaphragm.The below of lower membrane cover is fixed with support 16, and lower membrane cover and support are fixed by hex head bolt, is provided with seal washer between hex head bolt and lower membrane cover.The joint of support and lower membrane cover is equipped with guide sleeve 17, and described push rod is located in guide sleeve, and the upper end of push rod is fixedly connected with the middle part of diaphragm support, and guide sleeve is stretched out in the lower end of push rod.Described guide sleeve is cylindrical, the middle part of cylindrical guide sleeve is provided with bulge loop, support is provided with the groove with bulge loop adaptation, fit in the upper surface of bulge loop and the bottom surface of lower membrane cover, upper surface and the guide sleeve inwall of guide sleeve bulge loop are equipped with seal groove, be provided with O-ring seals 18 in seal groove, described O-ring seals is two, is separately positioned on the two ends up and down of guide sleeve.
Because upper and lower membrane cover fixing bolt of the present utility model arranges independent on upper and lower pressure ring, therefore fixing bolt is not through upper and lower membrane cover and diaphragm, the peripheral edge of upper and lower membrane cover and diaphragm is without the need to punching, so not only final controlling element demolition and maintenance are convenient, and diaphragm is complete structure, breakage can not be there is, therefore final controlling element good reliability, long service life because of hole.
Claims (7)
1. a detachable type pneumatic film final controlling element, it is characterized in that: comprise membrane cover (1), lower membrane cover (2) and push rod (3), upper membrane cover and lower membrane cover are circle, cavity is formed between upper membrane cover and lower membrane cover, diaphragm (4) is provided with in cavity, the periphery of upper membrane cover and lower membrane cover is equipped with ring-type flange (5), the outer periphery of diaphragm is folded between the ring-type flange of membrane cover and lower membrane cover, the top of diaphragm is provided with diaphragm support (6), diaphragm support is rounded, diaphragm support is evenly provided with several spring stands (7) along diaphragm support circumference, Compress Spring (8) is provided with between spring stand and upper membrane cover, upper press ring (9) is provided with on the upside of the ring-type flange of upper membrane cover, lower pressure ring (10) is provided with on the downside of the ring-type flange of lower membrane cover, the cross section of upper press ring and lower pressure ring is all L-shaped and be symmetrical arranged up and down, upper press ring and lower pressure ring are provided with fixed hole corresponding up and down, described fixed hole position is outside the ring-type flange of upper membrane cover and lower membrane cover, fixing bolt (11) is provided with in fixed hole, upper membrane cover and lower membrane cover are connected and fixed by fixing bolt.
2. detachable type pneumatic film final controlling element according to claim 1, is characterized in that: be provided with fixed cover (12) between the upper end of push rod and diaphragm support, and the upper end of push rod is through fixed cover and fixed by set screw nut (13).
3. detachable type pneumatic film final controlling element according to claim 1, it is characterized in that: the upper and lower surface of diaphragm periphery is equipped with the stiffening rib (14) being raised in diaphragm, the ring-type flange of upper membrane cover and lower membrane cover is provided with the annular groove (15) corresponding with described stiffening rib.
4. detachable type pneumatic film final controlling element according to claim 1, it is characterized in that: the below of lower membrane cover is fixed with support (16), the joint of support and lower membrane cover is equipped with guide sleeve (17), described push rod is located in guide sleeve, the upper end of push rod is fixedly connected with the middle part of diaphragm support, and guide sleeve is stretched out in the lower end of push rod.
5. detachable type pneumatic film final controlling element according to claim 4, is characterized in that: lower membrane cover and support are fixed by hex head bolt, is provided with seal washer between hex head bolt and lower membrane cover.
6. detachable type pneumatic film final controlling element according to claim 4, it is characterized in that: described guide sleeve is cylindrical, the middle part of cylindrical guide sleeve is provided with bulge loop, support is provided with the groove with bulge loop adaptation, fit in the upper surface of bulge loop and the bottom surface of lower membrane cover, upper surface and the guide sleeve inwall of guide sleeve bulge loop are equipped with seal groove, are provided with O-ring seals (18) in seal groove, described O-ring seals is two, is separately positioned on the two ends up and down of guide sleeve.
7. detachable type pneumatic film final controlling element according to any one of claim 1-6, is characterized in that: fixing bolt comprises two lifting bolts, and described lifting bolt is symmetrical arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510090.9U CN204784987U (en) | 2015-07-14 | 2015-07-14 | Just, tear formula diaphragm pneumatic film executor open |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520510090.9U CN204784987U (en) | 2015-07-14 | 2015-07-14 | Just, tear formula diaphragm pneumatic film executor open |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204784987U true CN204784987U (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520510090.9U Active CN204784987U (en) | 2015-07-14 | 2015-07-14 | Just, tear formula diaphragm pneumatic film executor open |
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| Country | Link |
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| CN (1) | CN204784987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269882A (en) * | 2016-04-01 | 2017-10-20 | 曼·胡默尔有限公司 | Exchange membrane for pressure-control valve |
-
2015
- 2015-07-14 CN CN201520510090.9U patent/CN204784987U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269882A (en) * | 2016-04-01 | 2017-10-20 | 曼·胡默尔有限公司 | Exchange membrane for pressure-control valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 311401 no.15-2, Mashan Road, Changkou Town, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Lansheng Intelligent Equipment Co.,Ltd. Address before: 311401 Building 2, Central Road, Dongzhou industrial functional zone, Dongzhou street, Fuyang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU LANSHENG VALVE Co.,Ltd. |