CN105546137B - A kind of sealing structure - Google Patents
A kind of sealing structure Download PDFInfo
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- CN105546137B CN105546137B CN201610071531.9A CN201610071531A CN105546137B CN 105546137 B CN105546137 B CN 105546137B CN 201610071531 A CN201610071531 A CN 201610071531A CN 105546137 B CN105546137 B CN 105546137B
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- Prior art keywords
- functor
- sealing element
- wall
- sealing
- shell
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
Abstract
The present invention provides a kind of sealing structure, and including the sealing element being mounted on outside functor, the sealing element movable set is outside the functor.The beneficial effects of the present invention are: it is to be flexibly connected between sealing element and functor, it not only assembles very convenient, the structure of functor will not be destroyed, and sealing element can automatically adjust the compactness between face to be sealed, sealing effect is good, furthermore the concentricity requirement after sealing element is assembled with functor is lower, greatly reduces production cost.
Description
Technical field
The present invention relates to a kind of sealing structures.
Background technique
Currently used sealing structure, main includes the sealing element being fixedly mounted on outside functor, and sealing element is generally fixed
It is integrally formed outside functor or with functor.Sealing structure is to be sealed when the mechanism sealed to needs is sealed
Generally there is intercommunicating pore of the connection between the different chamber of two pressure values in mechanism, be formed on the side of intercommunicating pore to close
Cover, the end face outside of sealing element is for sealing surface and with face paste to be sealed tightly to realize sealing.Due to sealing element and functor
It is integrally formed or interference fit forms a fixed connection, because production or assembly relation, sealing element are coaxial with functor
Degree is unable to reach desirable, and is sealed between the sealing surface of sealing element and the face to be sealed of mechanism to be sealed using hard,
If the concentricity slightly deviation between sealing element and functor, sealing surface face relatively to be sealed will be caused to tilt, sealing surface
There are gaps between face to be sealed, and then lead to the seal failure between sealing surface and face to be sealed.In addition, if sealing element and
Functor using being integrally formed, then can requirement on machining accuracy to entire product it is higher, improve production cost；If sealing element and function
Energy part is easy to destroy the structure of functor when sealing element to be assembled on functor, to make using interference fit connection
It is not perfect at the function of functor or be damaged.
Summary of the invention
In order to overcome the above deficiencies in the prior art, the present invention provides a kind of simple and compact for structure, at low cost, peace
The sealing structure that dress is convenient, sealing effect is good.
The present invention the technical solution to solve the technical problem is that: a kind of sealing structure, it is close outside functor including being mounted on
Sealing, the sealing element movable set is outside the functor.
Further, it is provided with outside the functor and the sealing element is limited on the functor and guarantees the sealing
Part can the relatively described movable position limiting structure of functor.
Further, the position limiting structure includes the recessed limiting slot on the outer wall of the functor, the sealing element
Inner wall protrudes into the limiting slot, and clearance fit between the inner wall of the sealing element and the bottom wall of the limiting slot, described close
The width dimensions of sealing are less than the width dimensions of the limiting slot, and width dimensions here refer to along its axial size.
Further, the position limiting structure includes at least one retention bead of the circle projection on the outer wall of the functor and extremely
The recessed limiting groove on the inner wall of the sealing element of a few circle, the number of retention bead are equal with the number of limiting groove,
The retention bead one-to-one correspondence protrudes into the limiting groove, and gap is matched between the retention bead and the limiting groove
It closes, clearance fit between the inner wall of the sealing element and the outer wall of the functor.
Further, the position limiting structure includes at least one retention bead of the circle projection on the inner wall of the sealing element and extremely
The recessed limiting groove on the outer wall of the functor of a few circle, the number of retention bead are equal with the number of limiting groove,
The retention bead one-to-one correspondence protrudes into the limiting groove, and gap is matched between the retention bead and the limiting groove
It closes, clearance fit between the inner wall of the sealing element and the outer wall of the functor.
Further, the position limiting structure includes retention bead of the two circle projections on the outer wall of the functor, described close
Sealing is placed between two retention beads, and the internal diameter of the sealing element is less than the outer diameter ruler of the retention bead
Very little, less than the distance between two described retention beads, width dimensions here refer to along it width dimensions of the sealing element
Axial size, clearance fit between the inner wall of the sealing element and the outer wall of the functor.
Further, the position limiting structure includes that the shaft shoulder and one on an outer wall for being set to the functor is fixed on the function
Block piece on the outer wall of energy part, the sealing element is mounted between the shaft shoulder and the block piece, and the width of the sealing element
Size is less than the distance between the shaft shoulder and the block piece, and width dimensions here refer to along its axial size, described close
Clearance fit between the inner wall of sealing and the outer wall of the functor.
Further, the outer wall of the functor is equipped with card slot, and the block piece is the retainer ring being stuck in the card slot.
Further, the outer wall of the functor is equipped with screw thread, and the block piece is the nut being arranged at the screw thread.
Further, the present invention also provides a kind of application of sealing structure, i.e., the described functor is temperature-sensing element, the temperature-sensitive
Element includes the upper cover for the opening that shell with an open mouth, lid are located at the shell and is set to the intracorporal temperature-sensitive master of the shell
Body, the temperature-sensitive main body include that lower end is located at the glue that in the shell and upper end is pressed between the upper cover and the top of shell
The push rod managing, being filled in the temperature-sensitive object between the outer wall of the sebific duct and the inner wall of the shell and be slidably installed in the sebific duct, should
The upper end of push rod passes through the upper cover and stretches out outside the upper cover, and the sealing element is movably installed with outside the shell.
In the use of the present invention, functor is slidably installed in mechanism to be sealed, the lower surface of sealing element is sealing surface and just
To the face to be sealed at the intercommunicating pore of mechanism to be sealed, when needing to seal, a power is applied to make functor to functor
Close to face to be sealed, sealing surface can fit closely band dynamic seal under the action of thrust with face to be sealed, realize sealing；It is not required to
When sealing, reversed power is applied to functor to make functor band dynamic seal far from face to be sealed, sealing surface with
Face separation to be sealed, to open intercommunicating pore.Because sealing element is movably arranged on outside functor, even if sealing element and functor is same
Axis degree slightly deviation perhaps the concentricity slightly deviation or functor in the face to be sealed of sealing element and mechanism to be sealed with to
The concentricity slightly deviation in the face to be sealed of sealing mechanism, sealing element can be adjusted automatically, guarantee sealing surface with it is to be sealed
Compactness between face, sealing effect are good, and are flexibly connected between sealing element and functor, assemble very convenient, Er Qiesheng
It produces at low cost.This sealing structure, which can be widely used in, to be needed in the mechanism that seals, for example, petroleum, petrochemical industry, chemical industry, metallurgy,
The sealing in the various fields such as electric power, water conservancy, urban construction, machinery, coal, food, air-conditioning, HVAC.
When the present invention is applied to temperature-sensing element, temperature-sensing element is mainly used in heat control valve, has in the valve casing of heat control valve
The junction of cavity and the flow channel and flow pass being connected to the cavity, flow channel and cavity is formed with to be sealed
Face, temperature-sensing element are mounted in cavity, and the upper end of the push rod of temperature-sensing element is fixed on the roof of cavity, the sealing of temperature-sensing element
The lower end surface of part is sealing surface and face face to be sealed, is supported by spring between the lower end and valve casing of sealing element.It is close when not working
For sealing under the action of the spring far from face to be sealed, valve is in normally open, and flow channel is connected by cavity and flow pass
It is logical；When work, when fluid temperature reaches set temperature in the valve of heat control valve, temperature-sensitive object is heated to be started to expand, compression sebific duct from
And push rod is pushed to generate displacement upwards, push shell, sealing element to move downward reversely to close face to be sealed, and sealing surface can
It is fitted closely with face to be sealed, realizes sealing.Because sealing element is movably arranged on outside shell, even if the concentricity of sealing element and shell
Slightly perhaps the concentricity in sealing element and face to be sealed slightly deviation or shell and the concentricity of flow channel be slightly for deviation
Deviation, sealing element can be adjusted automatically, guarantee the compactness between sealing surface and face to be sealed, and sealing effect is good, and
Be flexibly connected between sealing element and shell, assemble very convenient, will not destroy the internal structure of shell, and be fixedly connected
It compares, production cost is cheaper.
The beneficial effects of the present invention are: to be flexibly connected between sealing element and functor, not only assemble it is very convenient, no
The structure of functor can be destroyed, and sealing element can automatically adjust the compactness between face to be sealed, sealing effect is good, then
Person, the concentricity requirement after sealing element is assembled with functor is lower, greatly reduces production cost.
Detailed description of the invention
Fig. 1 is the opening state figure of the present invention when in use.
Fig. 2 is the sealing state figure of the present invention when in use.
Fig. 3 is the first embodiment of position limiting structure of the invention.
Fig. 4 is second of embodiment of position limiting structure of the invention.
Fig. 5 is the third embodiment of position limiting structure of the invention.
Fig. 6 is the 4th kind of embodiment of position limiting structure of the invention.
Fig. 7 is the 5th kind of embodiment of position limiting structure of the invention.
Fig. 8 is the 6th kind of embodiment of position limiting structure of the invention.
Fig. 9 is the opening state figure when present invention is applied to temperature-sensing element.
Figure 10 is the sealing state figure when present invention is applied to temperature-sensing element.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Referring to Fig.1, Fig. 2, a kind of sealing structure, including the sealing element 2 being mounted on outside functor 1,2 activity of sealing element
It is sleeved on outside the functor 1, is provided with outside the functor 1 and the sealing element 2 is limited on the functor and is guaranteed
The sealing element 2 can the movable position limiting structure of the functor 1 relatively.
The first embodiment of position limiting structure, referring to Fig. 3, the position limiting structure includes recessed in the functor 1
Limiting slot 3 on outer wall, the inner wall of the sealing element 2 protrude into the limiting slot 3, and the inner wall of the sealing element 2 with it is described
Clearance fit between the bottom wall of limiting slot 3, the width dimensions of the sealing element 2 are less than the width dimensions of the limiting slot 3, here
Width dimensions refer to along its axial size.In order to be packed into sealing element 2 smoothly in limiting slot 3, generally in limiting slot
Guiding surface is set on the side wall in outside.
Second of embodiment of position limiting structure, referring to Fig. 4, the position limiting structure includes at least one circle projection in the function
Retention bead 4 and at least one recessed limiting groove 5 on the inner wall of the sealing element 2 of circle on the outer wall of energy part 1, limit convex
The number risen is equal with the number of limiting groove, and the one-to-one correspondence of retention bead 4 protrudes into the limiting groove 5, and described
Clearance fit between retention bead 4 and the limiting groove 5, between the inner wall of the sealing element 2 and the outer wall of the functor 1
Clearance fit.The shape of retention bead 4 can be rectangular, spherical or pointed, the shape of retention bead be it is pointed more excellent, can be with
It is packed into retention bead 4 smoothly in limiting groove 5.In the present embodiment, retention bead and limiting groove are respectively a circle, limit convex
It rises and the circle number of limiting groove can also be 2 circles or the multi-turns such as 3 circles or 4 circles.
The third embodiment of position limiting structure, referring to Fig. 5, the position limiting structure includes at least one circle projection described close
Retention bead 4 and at least one recessed limiting groove 5 on the outer wall of the functor 1 of circle on the inner wall of sealing 2, limit convex
The number risen is equal with the number of limiting groove, and the one-to-one correspondence of retention bead 4 protrudes into the limiting groove 5, and described
Clearance fit between retention bead 4 and the limiting groove 5, between the inner wall of the sealing element 2 and the outer wall of the functor 1
Clearance fit.The shape of retention bead 4 can be rectangular, spherical or pointed, the shape of retention bead 4 be it is pointed more excellent, can
So that retention bead 4 is smoothly packed into limiting groove 5.In the present embodiment, retention bead and limiting groove are respectively a circle, limit
The circle number of protrusion and limiting groove can also be 2 circles or the multi-turns such as 3 circles or 4 circles.
4th kind of embodiment of position limiting structure, referring to Fig. 6, the position limiting structure includes two circle projections in the functor
Retention bead 4 on 1 outer wall, the sealing element 2 is placed between two retention beads 4, and the internal diameter of the sealing element 2
Size is less than the outer diameter of the retention bead 4, less than two retention beads 4 of width dimensions of the sealing element 2 it
Between distance, width dimensions here refer to along its axial size, the inner wall of the sealing element 2 and the functor 1 it is outer
Clearance fit between wall.The shape of retention bead 4 can be rectangular, spherical or pointed, the shape of retention bead 4 be it is pointed more
It is excellent, sealing element 2 can be made smoothly to be packed between two retention beads 4.
5th kind of embodiment of position limiting structure, referring to Fig. 7, the position limiting structure includes one set on the functor 1
The shaft shoulder 6 and one on outer wall are fixed on the block piece on the outer wall of the functor 1, and the outer wall of the functor 1 is equipped with card slot,
The block piece is the retainer ring 7 being stuck in the card slot, and the sealing element 2 is mounted between the shaft shoulder 6 and the retainer ring 7, and
The width dimensions of the sealing element 2 are less than the distance between the shaft shoulder 6 and described retainer ring 7, and width dimensions here refer to edge
Its axial size, clearance fit between the inner wall of the sealing element 2 and the outer wall of the functor 1.First sealing element 2 is set with
Outside functor 1, then retainer ring 7 is caught in card slot again, it is easy for installation.Retainer ring can be made of metal, can also be by non-gold
Category is made, and can also be made of ceramic.
6th kind of embodiment of position limiting structure, referring to Fig. 8, the position limiting structure includes one on the functor 1
The shaft shoulder 6 and one be fixed on block piece on the functor 1, the outer wall of the functor 1 is equipped with screw thread, and the block piece is spiral shell
The nut 8 being located at the screw thread, the sealing element 2 is mounted between the shaft shoulder 6 and the nut 8, and the sealing element 2
Width dimensions be less than the distance between the shaft shoulder 6 and described nut 8, width dimensions here refer to the ruler along its axial direction
It is very little, clearance fit between the inner wall of the sealing element 2 and the outer wall of the functor 1.Sealing element 2 is first sleeved on functor 1
Outside, then nut 8 is screwed at the screw thread of functor 1 again, it is easy for installation.
In the use of the present invention, functor 1 is slidably installed in mechanism 9 to be sealed, the lower surface of sealing element 2 is sealing surface 11
And the face to be sealed 12 at the intercommunicating pore 10 of face mechanism to be sealed, when needing to seal, to functor 1 apply a power to
Make functor band dynamic seal 2 close to face 12 to be sealed, sealing surface 11 can be with face to be sealed under the action of the thrust of functor
12 fit closely, and realize sealing；When not needing sealing, it is close to make functor drive to apply a reversed power to functor 1
Sealing 2 is separated far from face 12 to be sealed, sealing surface with face to be sealed, to open intercommunicating pore 10.Because sealing element 2 is movably arranged on
Outside functor 1, even if the face to be sealed of the concentricity of sealing element and functor slightly deviation or sealing element and mechanism to be sealed
The concentricity slightly deviation in the concentricity slightly face to be sealed of deviation or functor and mechanism to be sealed, sealing element can be certainly
It is dynamic to be adjusted, guarantee the compactness between sealing surface 11 and face to be sealed 12, sealing effect is good, and sealing element and functor
Between be flexibly connected, assemble very convenient, and production cost is low.This sealing structure can be widely used in what needs sealed
In mechanism, for example petroleum, petrochemical industry, chemical industry, metallurgy, electric power, water conservancy, urban construction, machinery, coal, food, air-conditioning, HVAC etc. are various
The sealing in field.
The present invention also provides a kind of application of sealing structure, i.e., the described functor 1 is temperature-sensing element, referring to Fig. 9, Figure 10,
The temperature-sensing element includes the upper cover for the opening that shell 13 with an open mouth, lid are located at the shell 13 and is set to the shell
Intracorporal temperature-sensitive main body, the temperature-sensitive main body include that lower end is located in the shell and upper end and is pressed on the upper of the upper cover and shell
Sebific duct between portion, the temperature-sensitive object being filled between the outer wall of the sebific duct and the inner wall of the shell and it is slidably installed in the sebific duct
Interior push rod 14, the upper end of the push rod pass through the upper cover and stretch out outside the upper cover, are movably installed with institute outside the shell 13
State sealing element 2.
When the present invention is applied to temperature-sensing element, temperature-sensing element is mainly used in heat control valve, tool in the valve casing 15 of heat control valve
There are cavity 16 and the flow channel being connected to the cavity 17 and a flow pass 18, the junction of flow channel and cavity is formed
Needing sealing surface 12, temperature-sensing element is mounted in cavity 16, and the upper end of the push rod 14 of temperature-sensing element is fixed on the roof of cavity,
The lower end surface of the sealing element 2 of temperature-sensing element is sealing surface 11 and face face 12 to be sealed, between the lower end and valve casing 15 of sealing element 2
It is supported by spring 19.When not working, for sealing element 2 far from face 12 to be sealed under the action of spring 19, valve is in normally open,
Flow channel 17 is connected to by cavity 16 with flow pass 18；When work, when fluid temperature reaches setting temperature in the valve of heat control valve
When spending, temperature-sensitive object is heated to be started to expand, and compression sebific duct is to push push rod 14 to generate displacement upwards, the reversed shell 13, close of pushing
Sealing 2 moves downward to which close to face 12 to be sealed, sealing surface 11 can be tight with face 12 to be sealed under the action of the thrust of shell
Sealing is realized in closely connected conjunction.Because sealing element 2 is movably arranged on outside shell 13, even if the concentricity of sealing element and shell slightly deviation,
Perhaps the concentricity slightly deviation of the concentricity in sealing element and face to be sealed slightly deviation or shell and flow channel, sealing
Part can be adjusted automatically, guarantee the compactness between sealing surface and face to be sealed, sealing effect is good, and sealing element and shell
It is flexibly connected between body, assembly is very convenient, will not destroy the internal structure of shell, and compared with being fixedly connected, and produces
Cost is cheaper.
Claims (3)
1. a kind of sealing structure, including the sealing element being mounted on outside functor, it is characterised in that: the sealing element movable set exists
Outside the functor, it is provided with outside the functor and the sealing element is limited on the functor and guarantees the sealing element
It can the relatively described movable position limiting structure of functor；
The position limiting structure includes that retention bead and at least one circle of at least one circle projection on the outer wall of the functor are recessed
Limiting groove on the inner wall of the sealing element, the retention bead one-to-one correspondence protrude into the limiting groove, and described
Clearance fit between retention bead and the limiting groove, gap between the inner wall of the sealing element and the outer wall of the functor
Cooperation；
Alternatively, the position limiting structure includes retention bead and at least one circle of at least one circle projection on the inner wall of the sealing element
The recessed limiting groove on the outer wall of the functor, the retention bead one-to-one correspondence protrude into the limiting groove, and
Clearance fit between the retention bead and the limiting groove, between the inner wall of the sealing element and the outer wall of the functor
Clearance fit.
2. sealing structure according to claim 1, it is characterised in that: the functor is temperature-sensing element.
3. sealing structure according to claim 2, it is characterised in that: the temperature-sensing element includes shell with an open mouth
Body, lid are located at the upper cover of the opening of the shell and are set to the intracorporal temperature-sensitive main body of the shell, which includes lower end position
Sebific duct between the upper cover and the top of shell is pressed in the shell and upper end, the outer wall that is filled in the sebific duct and institute
The upper end of the push rod stating the temperature-sensitive object between the inner wall of shell and being slidably installed in the sebific duct, the push rod passes through the upper cover simultaneously
It stretches out outside the upper cover, the sealing element is movably installed with outside the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071531.9A CN105546137B (en) | 2016-02-02 | 2016-02-02 | A kind of sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071531.9A CN105546137B (en) | 2016-02-02 | 2016-02-02 | A kind of sealing structure |
Publications (2)
| Publication Number | Publication Date |
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| CN105546137A CN105546137A (en) | 2016-05-04 |
| CN105546137B true CN105546137B (en) | 2019-03-05 |
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| CN201610071531.9A Active CN105546137B (en) | 2016-02-02 | 2016-02-02 | A kind of sealing structure |
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| CN (1) | CN105546137B (en) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4113268A (en) * | 1977-03-15 | 1978-09-12 | Posi-Seal International, Inc. | Extended temperature range valve seal |
| DE10354192B4 (en) * | 2003-11-20 | 2006-06-29 | Danfoss A/S | radiator valve |
| CN201487374U (en) * | 2009-07-15 | 2010-05-26 | 铜陵市兴达阀门总厂 | Valve sealing ring |
| CN201636317U (en) * | 2010-03-25 | 2010-11-17 | 董昶福 | Triple seal ring |
| CN201819450U (en) * | 2010-10-13 | 2011-05-04 | 山东力诺瑞特新能源有限公司 | Frame sealing structure for solar thermal collector |
| CN102788160A (en) * | 2011-05-17 | 2012-11-21 | 靳长斌 | Leak-proof temperature control valve |
| CN202171005U (en) * | 2011-05-30 | 2012-03-21 | 杭州三花研究院有限公司 | Thermostatic valve |
| CN202349234U (en) * | 2011-09-15 | 2012-07-25 | 玉环县双安水暖有限公司 | Valve core |
| CN202451844U (en) * | 2011-10-27 | 2012-09-26 | 浙江武荣阀门有限公司 | Pneumatic bent pipe stop valve |
| CN202493770U (en) * | 2012-02-29 | 2012-10-17 | 上海骐荣机械自控有限公司 | Follow-up shaft seal ring structure of butterfly valve |
| CN103016762B (en) * | 2012-11-05 | 2015-11-18 | 宣达实业集团浙江耐森阀业有限公司 | Bidirectional sealed butterfly valve |
| JP5918188B2 (en) * | 2013-09-12 | 2016-05-18 | 株式会社鷺宮製作所 | Control valve |
| CN104006168B (en) * | 2014-06-11 | 2016-04-27 | 浙江达柏林阀门有限公司 | A kind of stop valve |
| CN205592407U (en) * | 2016-02-02 | 2016-09-21 | 慈溪市东南复合材料有限公司 | Sealing structure |
-
2016
- 2016-02-02 CN CN201610071531.9A patent/CN105546137B/en active Active
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