CN201764002U - Metal hard sealing ball valve - Google Patents
Metal hard sealing ball valve Download PDFInfo
- Publication number
- CN201764002U CN201764002U CN2010205345602U CN201020534560U CN201764002U CN 201764002 U CN201764002 U CN 201764002U CN 2010205345602 U CN2010205345602 U CN 2010205345602U CN 201020534560 U CN201020534560 U CN 201020534560U CN 201764002 U CN201764002 U CN 201764002U
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- valve
- valve body
- gland
- sealing
- valve seat
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Abstract
The utility model relates to a valve body, particularly relates to a metal hard sealing ball valve. The utility model adopts the following technical scheme. The metal hard sealing ball valve includes a valve body, the valve body is provided with a channel, the connection chamber of the valve body is provided with a ball body which is driven by the valve rod on the valve body to rotate, a valve base is arranged at the connection part of the medium inlet channel and the medium outlet channel and the connection chamber, the valve base comprises a pressing end and an extended positioning end, the pressing end is contacted with the ball body, the extended positioning end is attached to the inner wall of the valve body, a space is left between the extended positioning end of the valve base and the inner wall of the channel of the valve body, and the space is provided with a pressing sleeve, one end of the pressing sleeve at the axial direction is flexibly contacted with the valve body, a sealing member is arranged between the other end of the pressing sleeve at the axial direction and the valve base, a contact positioning of the valve base and the pressing sleeve is formed via the sealing member which is a flexible graphite sealing ring. The metal hard sealing ball valve in the utility model is stable in operation and prolongs the service life time of the sealing member.
Description
Technical field
The utility model relates to a kind of valve body, particularly a kind of metal hard-sealing ball valve.
Background technique
Ordinary ball valve usually by valve body, be located at spheroid in the valve body, the valve rod and the valve seat that drive spheroid form.Soft sealing materials such as common employing teflon are as sealing surface of seat, and for the fluid that contains hard solid particle, the soft seal valve seat in use is easy to damage.For this operating mode medium, adopt metal hard-sealing ball valve usually, promptly adopt the metal seat valve structure.For being used for the not high occasion of temperature, adopt the integral valve stand structure design of Fig. 1 usually, 1 among Fig. 1 is spheroid, and 2 is valve seat, and 3 is the RUBBER O RunddichtringO, and 4 is valve body, 5 is spring.Because serviceability temperature is not high, so valve seat 2 adopts rubber o-ring to get final product with the sealing of valve body 4.Be subjected to the temperature limitation of rubber material,, adopt rubber o-ring then to cause leakage between valve seat and the valve body easily as the sealing material between valve seat and the valve body for the higher occasion of temperature; Constantly research and develop by these those skilled in the art, for the higher occasion of temperature, by the rubber o-ring of sealing is replaced by the sealing material of Expanded graphite as valve seat and valve body, after Expanded graphite is installed on the whole valve seat, its sealability is stable inadequately, for overcoming this type of problem, these those skilled in the art will fix by gland between valve seat and the valve body, and Expanded graphite is arranged between gland and the valve seat, guarantee the sealability of Expanded graphite with this, but after being provided with like this, the axial distance of valve seat shortens, and when valve switch was the spheroid rotation, the valve seat location was relatively poor, be easy to generate swing, particularly when ball valve was partly opened, a valve seat part contacted with spheroid, and a part breaks away from spheroid, valve seat is easy to produce deflection, thereby causes the damage of the jam and the Expanded graphite seal ring of valve.
Summary of the invention
At the deficiency that prior art exists, the utility model provides a kind of stable, metal hard-sealing ball valve of prolonging seal durability.
For achieving the above object, the utility model provides following technological scheme: a kind of metal hard-sealing ball valve, include valve body, valve body is provided with passage, passage includes medium inlet passage and medium flow pass, be connected by connection chamber between medium inlet passage and the medium flow pass, be provided with spheroid in the described connection chamber, this spheroid drives its rotation by the valve rod of being located on the valve body, and constitute the conducting of connection chamber and medium inlet passage and medium flow pass or close, the joining place of described medium inlet passage and medium flow pass and connection chamber is provided with valve seat, it is characterized in that: described valve seat includes and compresses end and extend positioning end, it compresses end and conflicts with spheroid, extending positioning end fits towards the passage extension of valve body and with the inwall of valve channel, leave the space between the extension positioning end of valve seat and the inwall of valve channel, be provided with gland in this space, end that gland is axial and valve body are elasticity and conflict, be provided with Sealing between the other end that it is axial and the valve seat, and passing through the conflict location that the sealing part constitutes valve seat and gland, described Sealing is the Expanded graphite seal ring.
Adopt technique scheme, the extension positioning end of valve seat extends in the passage of valve body, and fit with the inwall of passage, and gland is in the extension positioning end and the space between the valve channel of valve seat, after being provided with like this, the axial distance of valve seat extends to the extension positioning end place that is in the valve channel by the end that compresses that it is in the connection chamber place, its axial distance increases, and when valve switch was the spheroid rotation, valve seat was had good positioning, can not produce swing, when ball valve was partly opened, valve seat can not break away from spheroid yet, and can not produce deflection, effectively prevent the damage of the jam and the Expanded graphite seal ring of valve, thereby prolonged the working life of Expanded graphite seal ring.
The utility model further is set to: the end that compresses of valve seat includes press block of fitting with spherome surface and the sealing block that is connected with this press block, offer short slot on the end face that sealing block and valve channel inwall are fitted, the side of short slot cross section is the inclined-plane, and the bottom surface is the plane; Be provided with between described gland and the valve body and compress spring, conflict with the end face that compresses of valve body and gland respectively in these two ends that compress spring, making gland and valve body constitute elasticity conflicts, gland one end axial and that valve seat compresses is provided with extension block, this extension block extends in the short slot of valve seat, and extension block is and symmetrically arranged inclined-plane, short slot side to have buffer space between the sealing block of described gland and valve seat towards the top of short slot end face; Described Sealing places in the short slot of valve seat, the both sides of the cross section of Sealing respectively with the top end face of gland extension block and valve seat on the side of short slot conflict and fit, fit in the bottom surface of the bottom of Sealing cross section and valve seat short slot, the inwall of its top and valve channel is fitted and sealed.
Wherein, gland offers holding cavity towards compressing of valve body on the end face, and the described spring that compresses is in this holding cavity, and compresses the bottom end face conflict of an end and the holding cavity of spring, and the end face that compresses of the other end and valve body is conflicted.
Adopt technique scheme, on the valve seat on the sealing block on short slot and the gland setting of extension block be the space that forms a compacting Sealing between valve seat and the gland in order to make, and by the sealing between enforcement valve seat of the Sealing in this space and the valve body; It then is for being in this space of guaranteeing that Sealing can be stable excessively that the side of short slot cross section and gland extension block top end face are arranged to relative inclined-plane, can not take place to slide and has influence on sealability; Has buffer space between the sealing block of gland and valve seat, it is because Sealing in use can produce small wearing and tearing that this buffer space is set, behind the sealing part abrasion, just can produce the gap between gland and the valve seat, cause to seal between valve body and the valve seat for the generation that prevents this type of gap, gland is compressed by the spring that compresses that is between valve body and the gland; After Sealing weares and teares, compress spring and compress gland, gland then can prolong buffer space towards the valve seat displacement, and the extension block on it is conflicted with the Sealing of wearing and tearing once more.After being provided with like this, when slightly wearing and tearing appearred in Sealing, the distance between gland and the valve seat can be regulated automatically, need not manual operation, and was simple in structure.
Below in conjunction with accompanying drawing the utility model is further described.
Description of drawings
Fig. 1 is the partial structurtes schematic representation of background technique;
Fig. 2 is the utility model embodiment 1 a structural representation;
Fig. 3 is the I portion enlarged view of Fig. 2;
Fig. 4 is a valve seat construction schematic representation among the utility model embodiment 1 and the embodiment 2;
Fig. 5 is the utility model embodiment 2 a structural representation;
Fig. 6 is the II portion enlarged view of Fig. 5.
Embodiment
A kind of metal hard-sealing ball valve shown in Fig. 2-6, include valve body 1, valve body is provided with passage 11, passage 11 includes medium inlet passage 111 and medium flow pass 112, be connected by connection chamber 12 between medium inlet passage 111 and the medium flow pass 112, be provided with spheroid 2 in the connection chamber 12, this spheroid 2 drives its rotation by the valve rod of being located on the valve body 13, and constitutes the conducting of connection chamber 12 and medium inlet passage 111 and medium flow pass 112 or close; Medium inlet passage 111 is provided with valve seat 4 with the joining place of medium flow pass 112 and connection chamber 12.Valve seat 4 includes and compresses end 41 and extend positioning end 42, it compresses end 41 and conflicts with spheroid 2, extending positioning end 42 fits towards passage 11 extensions of valve body 1 and with the inwall 113 of valve body 1 passage 11, leave space 5 between the inwall 113 of the extension positioning end 42 of valve seat 4 and valve body 1 passage 11, be provided with gland 6 in this space, gland 6 an axial end and valve bodies 1 are the elasticity conflict, be provided with Sealing 7 between the other end that it is axial and the valve seat 4, and by the conflict location of sealing part 7 formation valve seats 4 with gland 6, described Sealing 7 is the Expanded graphite seal ring.In the such scheme, the extension positioning end 42 of valve seat 4 extends in the passage 11 of valve body 1, and fit with the inwall 113 of passage 11, and gland 6 is in the extension positioning end 42 and the space 5 between valve body 1 passage 11 of valve seat 4, after being provided with like this, the axial distance of valve seat 4 extends to extension positioning end 42 places that are in valve body 1 passage 11 by the end 41 that compresses that it is in connection chamber 12 places, its axial distance increases, when valve switch is spheroid 2 rotations, valve seat 4 is had good positioning, can not produce swing, when ball valve is partly opened, valve seat 4 can not break away from spheroid 2 yet, and can not produce deflection, effectively prevented the damage of the jam and the Expanded graphite seal ring of valve, thereby prolonged the working life of Expanded graphite seal ring, and with Sealing 7 select for use for Expanded graphite then be in order to make metal hard-sealing ball valve can be under the worst hot case work.
In the utility model embodiment 1 and 2, the end 41 that compresses of valve seat 4 includes press block 411 of fitting with spheroid 2 surfaces and the sealing block 412 that is connected with this press block 411, need to prove, press block 411 and sealing block 412 are for being wholely set, here separately only be with it for convenience of explanation to its effect, certainly, if also be feasible, implement with reference to the utility model that such change is conspicuous behind the embodiment with its split setting; And after split is provided with, also may exist in spheroid 2 runnings, valve seat 4 produces and departs from.Offer short slot 413 on the end face that sealing block 412 and valve body 1 passage 11 inwalls 113 are fitted, the side 4131 of short slot 413 cross sections is the inclined-plane, and bottom surface 4132 cross sections are the plane; Being provided with between gland 6 and the valve body 1 and compressing spring 8, conflicts with the end face that compresses of valve body 1 and gland 6 respectively in these two ends that compress spring 8, and compressing between valve body that end face refers to 1 and the gland 6 here is used to support the end face that compresses spring 8; The elasticity that the setting that compresses spring 8 then can constitute between gland 6 and the valve body 1 is conflicted.Gland 6 ends axial and that valve seat 4 compresses are provided with extension block 61, this extension block 61 extends in the short slot 413 of valve seat 4, and extension block 61 is and 4131 symmetrically arranged inclined-planes, short slot 413 sides to have buffer space 62 between the sealing block 412 of gland 6 and valve seat 4 towards the top of short slot 413 end face 611; Sealing 7 places in the short slot 413 of valve seat 4, the both sides of the cross section of Sealing 7 respectively with the top end face 611 of gland 6 extension blocks 61 and valve seat 4 on the side 4131 of short slot 413 fit, fit in the bottom surface 4132 of the bottom of Sealing 7 cross sections and valve seat 4 short slots 413, the inwall 113 of its top and valve body 1 passage 11 is fitted and sealed.
Shown in Fig. 2-3, in the utility model embodiment 1, in order to make being between gland 6 and the valve body 1 that spring 8 can not be offset that compress between gland 6 and the valve body 1, gland 6 offers holding cavity 63 towards compressing of valve body 1 on the end face, the described spring 8 that compresses is in this holding cavity 63, and compress an end of spring 8 and the bottom end face 631 of holding cavity 63 and conflict, the end face that compresses of the other end and valve body 1 is conflicted.
Shown in Fig. 5-6, in the utility model embodiment 2, in order to make being between gland 6 and the valve body 1 that spring 8 can not be offset that compress between gland 6 and the valve body 1, valve body 1 offers cavity volume 13 towards compressing of gland 6 on the end face, the described spring 8 that compresses is in this cavity volume 13, and compress an end of spring 8 and the bottom end face 131 of cavity volume 13 and conflict, the end face that compresses of the other end and gland 6 is conflicted.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't be enumerated to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the present utility model.
Claims (4)
1. metal hard-sealing ball valve, include valve body, valve body is provided with passage, passage includes medium inlet passage and medium flow pass, be connected by connection chamber between medium inlet passage and the medium flow pass, be provided with spheroid in the described connection chamber, this spheroid drives its rotation by the valve rod of being located on the valve body, and constitute the conducting of connection chamber and medium inlet passage and medium flow pass or close, the joining place of described medium inlet passage and medium flow pass and connection chamber is provided with valve seat, it is characterized in that: described valve seat includes and compresses end and extend positioning end, it compresses end and conflicts with spheroid, extending positioning end fits towards the passage extension of valve body and with the inwall of valve channel, leave the space between the extension positioning end of valve seat and the inwall of valve channel, be provided with gland in this space, end that gland is axial and valve body are elasticity and conflict, be provided with Sealing between the other end that it is axial and the valve seat, and passing through the conflict location that the sealing part constitutes valve seat and gland, described Sealing is the Expanded graphite seal ring.
2. metal hard-sealing ball valve according to claim 1, it is characterized in that: the end that compresses of described valve seat includes press block of fitting with spherome surface and the sealing block that is connected with this press block, offer short slot on the end face that sealing block and valve channel inwall are fitted, the side of short slot cross section is the inclined-plane, and the bottom surface is the plane; Be provided with between described gland and the valve body and compress spring, conflict with the end face that compresses of valve body and gland respectively in these two ends that compress spring, making gland and valve body constitute elasticity conflicts, gland one end axial and that valve seat compresses is provided with extension block, this extension block extends in the short slot of valve seat, and extension block is and symmetrically arranged inclined-plane, short slot side to have buffer space between the sealing block of described gland and valve seat towards the top of short slot end face; Described Sealing places in the short slot of valve seat, the both sides of the cross section of Sealing respectively with the top end face of gland extension block and valve seat on the side of short slot conflict and fit, fit in the bottom surface of the bottom of Sealing cross section and valve seat short slot, the inwall of its top and valve channel is fitted and sealed.
3. metal hard-sealing ball valve according to claim 2, it is characterized in that: described gland offers holding cavity towards compressing of valve body on the end face, the described spring that compresses is in this holding cavity, and compress an end of spring and the bottom end face of holding cavity and conflict, the end face that compresses of the other end and valve body is conflicted.
4. metal hard-sealing ball valve according to claim 2, it is characterized in that: described valve body offers cavity volume towards compressing of gland on the end face, the described spring that compresses is in this cavity volume, and compresses the bottom end face conflict of an end and the cavity volume of spring, and the end face that compresses of the other end and gland is conflicted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205345602U CN201764002U (en) | 2010-09-19 | 2010-09-19 | Metal hard sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205345602U CN201764002U (en) | 2010-09-19 | 2010-09-19 | Metal hard sealing ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764002U true CN201764002U (en) | 2011-03-16 |
Family
ID=43716608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205345602U Expired - Lifetime CN201764002U (en) | 2010-09-19 | 2010-09-19 | Metal hard sealing ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764002U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606763A (en) * | 2012-03-29 | 2012-07-25 | 浙江超达阀门股份有限公司 | Ball valve base structure with anti-block pre-tensioning device |
| CN102635702A (en) * | 2012-03-29 | 2012-08-15 | 浙江超达阀门股份有限公司 | Valve seat structure of metal hard-seal ball valve with anti-jamming pretension device |
| CN102878320A (en) * | 2012-09-29 | 2013-01-16 | 凯瑞特阀业有限公司 | Ball valve with a valve seat having functions of auto-cleaning and dust proofing |
| CN108895175A (en) * | 2018-08-30 | 2018-11-27 | 昆山维萨阀门有限公司 | A kind of metal hard-sealing ball valve |
| CN114439965A (en) * | 2021-12-28 | 2022-05-06 | 东风富士汤姆森调温器有限公司 | Ball valve sealing structure for thermal management module |
-
2010
- 2010-09-19 CN CN2010205345602U patent/CN201764002U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606763A (en) * | 2012-03-29 | 2012-07-25 | 浙江超达阀门股份有限公司 | Ball valve base structure with anti-block pre-tensioning device |
| CN102635702A (en) * | 2012-03-29 | 2012-08-15 | 浙江超达阀门股份有限公司 | Valve seat structure of metal hard-seal ball valve with anti-jamming pretension device |
| CN102878320A (en) * | 2012-09-29 | 2013-01-16 | 凯瑞特阀业有限公司 | Ball valve with a valve seat having functions of auto-cleaning and dust proofing |
| CN108895175A (en) * | 2018-08-30 | 2018-11-27 | 昆山维萨阀门有限公司 | A kind of metal hard-sealing ball valve |
| CN114439965A (en) * | 2021-12-28 | 2022-05-06 | 东风富士汤姆森调温器有限公司 | Ball valve sealing structure for thermal management module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHAODA VALVE GROUP CO., LTD. Free format text: FORMER NAME: ZHEJIANG CHAODA VALVE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Jiangbei Avenue Oubei town of Yongjia County of Wenzhou City, Zhejiang province 325100 Patentee after: Chaoda Valve Group Co., Ltd. Address before: Jiangbei Avenue Oubei town of Yongjia County of Wenzhou City, Zhejiang province 325100 Patentee before: Zhejiang Chaoda Valve Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |
|
| CX01 | Expiry of patent term |