CN104197016B - A kind of sealed member and there is the pressure control device of sealing parts - Google Patents
A kind of sealed member and there is the pressure control device of sealing parts Download PDFInfo
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- CN104197016B CN104197016B CN201410376499.6A CN201410376499A CN104197016B CN 104197016 B CN104197016 B CN 104197016B CN 201410376499 A CN201410376499 A CN 201410376499A CN 104197016 B CN104197016 B CN 104197016B
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- driveshaft
- sealed
- sealed member
- pressure control
- seal disc
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Abstract
The invention discloses a kind of sealed member, comprise driveshaft and be set in the seal disc of joint of described driveshaft, the joint of described driveshaft comprises the first sealed department set gradually, diameter reducing part and supporting portion, described seal disc comprises the second sealed department and the first guide portion, described second sealed department and described first sealed department abut against, described first sealed department, described diameter reducing part, described supporting portion and described first guide portion form receiving cavity, the first sealed member is provided with in described receiving cavity, described first sealed department, sealing adjustment chamber is formed between described first sealed member and described first guide portion, described seal disc can relative to the axis rotation of described driveshaft, sealed member of the present invention, driveshaft is flexibly connected with seal disc, and can self-aligning centering, the invention also discloses a kind of pressure control device with sealed member of the present invention.
Description
Technical field
The invention belongs to technical field of sealing technology, be specifically related to a kind of sealed member and a kind of pressure control device.
Background technique
Figure 7 shows that a kind of existing valvular partial schematic diagram.
As shown in the figure, this valve bag valve base part 100 and the sealing mechanism 200 that can move up and down relative to valve base part 100, sealing mechanism 200 comprises bar 201 and Sealing 202.When sealing mechanism 200 moves up and down, Sealing 202 can abut or away from the port part 101 of valve base part 100.Bar 201 during in order to ensure that Sealing 202 abuts with port part 101 and the seal between Sealing 202, often adopt the mode the two be fixed together by welding in prior art.Now, although the possibility occurring between bar 201 and Sealing 202 to reveal reduces, its drawback is, when bar 201 is in operation because of certain reason generation deflection, must there is deflection with bar 201 in Sealing 202, now Sealing 202 cannot shutdown side oral area 101.
Summary of the invention
In order to solve the problem, the invention provides a kind of sealed member, can not there is less desirable deflection, thus improve sealability in sealed member self-aligning of the present invention.
The present invention also provides a kind of pressure control device.
Sealed member of the present invention, comprises driveshaft and is set in the seal disc of joint of described driveshaft, the joint of described driveshaft comprise set gradually the first sealed department, diameter reducing part and supporting portion,
Described seal disc comprises the second sealed department and the first guide portion, described second sealed department and described first sealed department abut against, described first sealed department, described diameter reducing part, described supporting portion and described first guide portion form receiving cavity, the first sealed member is provided with in described receiving cavity, form sealing between described first sealed department, described first sealed member and described first guide portion and regulate chamber, described seal disc can relative to the axis rotation of described driveshaft.
The sealed member of structure described above, described first sealed department is specially circular arc or conical sealing face.
The sealed member of structure described above, described second sealed department is specially the circular arc conical surface fitted with described circular arc or conical sealing face.
The sealed member of structure described above, described first sealed department is specially arc-shaped seal surface, and the angle between the tangential and longitudinal axis of described driveshaft of described arc-shaped seal surface is 30 ° ~ 60 °.
The sealed member of structure described above, the angle between the tangential and longitudinal axis of described driveshaft of described arc-shaped seal surface is 45 °.
The sealed member of structure described above, described first sealed member is specially " O " shape seal ring, described " O " shape seal ring matrix external diameter is in a free state 1-1.3 with the ratio of the internal diameter of described seal disc, described " O " shape seal ring matrix external diameter in a free state and described driveshaft the diameter ratio of diameter reducing part be 1.1-1.3.
The invention also discloses a kind of pressure control device, comprise pressure regulating part and the valve base part with valve port and valve pocket, also comprise as above-mentioned arbitrary sealed member, described seal disc coordinates with described valve port, when the pressure medium in described valve pocket is greater than the predefined value of described pressure regulating part, described valve port is opened; When the pressure medium in described valve pocket is less than the predefined value of described pressure regulating part, described valve port is closed.
The pressure control device of structure described above, described valve base part comprises pedestal and stream base that is affixed with described pedestal or that be integrally formed, described stream base comprises main body portion and the second guide portion, and described driveshaft stretches into described stream base and can move axially relative to described stream base.
The pressure control device of structure described above, also comprises being set in and compresses spring between described stream base and described seal disc.
The pressure control device of structure described above, described valve base part comprises pedestal and stream base that is affixed with described pedestal or that be integrally formed, described driveshaft is arranged with spring support, be provided with between described spring support and described seal disc and compress spring, described driveshaft stretches into described stream base and can move axially relative to described stream base, is provided with guide bearing between described stream base and described spring support.
The pressure control device of structure described above, described guide bearing is the thimble structure with upper end guide surface and/or lower end guide surface, and described spring support and/or described stream base are provided with the fitting surface with described upper end guide surface and/or described lower end guide surface phase mission.
The pressure control device of structure described above, described guide bearing is the nonmetal spheroid with axial hole, and described spring support and/or described stream base are provided with the fitting surface matched with described guide bearing.
The pressure control device of structure described above, the underpart of described driveshaft is provided with limit position part, and described limit position part and described stream base engagement are to limit the stroke of described driveshaft.
Sealed member of the present invention, self-aligning centering can be carried out, when it is as other device a part of, such as, during as sealed member in pressure control device, the seal disc of sealed member matches with the valve port of pressure control device, when sealed member moves down in the axial direction, seal disc offsets with valve port or is separated, sealed member of the present invention, because it can self-aligning centering, when seal disc abuts with valve port (or other parts), can abut fully, ensure the accurate opening and closing of valve port, less desirable leakage can not occur.
Accompanying drawing explanation
Figure 1 shows that the structural representation of the specific embodiment one of sealed member of the present invention;
Figure 2 shows that the partial enlarged drawing at A place in Fig. 1;
Figure 3 shows that the structural representation of the specific embodiment two of sealed member of the present invention;
Figure 4 shows that the structural representation of the specific embodiment one of pressure control device of the present invention;
Figure 5 shows that the structural representation of the specific embodiment two of pressure control device of the present invention;
Figure 6 shows that the structural representation of the specific embodiment three of pressure control device of the present invention;
Figure 7 shows that a kind of existing valvular partial schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details.
Figure 1 shows that the structural representation of the specific embodiment one of sealed member of the present invention, Figure 2 shows that the partial enlarged drawing at A place in Fig. 1, Figure 3 shows that the structural representation of the specific embodiment two of sealed member of the present invention.
As shown in Figures 1 and 2, in this specific embodiment, sealed member comprises driveshaft 1 and is set in the seal disc 2 of joint of driveshaft 1, and seal disc 2 can relative to the axis rotation of driveshaft 1.The joint of driveshaft 1 comprise set gradually from top to bottom the first sealed department 11, diameter reducing part 12 and supporting portion 13.Seal disc 2 comprises the second sealed department 21 and the first guide portion 22.Second sealed department 21 and the first sealed department 11 abut against.First sealed department 11, diameter reducing part 12, supporting portion 13 and the first guide portion 22 form a receiving cavity 3, are provided with the first sealed member 4 in receiving cavity 3.Sealing adjustment chamber 31 is formed between first sealed department 11, first sealed member 4 and the first guide portion 22.Sealing regulates the effect in chamber 31, reduces the surface friction drag that the first sealed member 4 is subject on the one hand, is beneficial to the compressive strain of the first sealed member 4.On the other hand, under equal conditions, deformation space can be increased, is more conducive to the compressive strain of the first sealed member 4.And when sealed member moves up and down, for preventing driveshaft 1 because of manual operation or other reason generation deflection, sealing regulates chamber 31 to make driveshaft 1 can carry out self-aligning centering relative to seal disc 2, thus prevent sealed member entirety from deflection occurring.
As shown in Figure 1, the first sealed department 11 can be arc-shaped seal surface, and corresponding second sealed department is the conical surface fitted with arc-shaped seal surface.This design proposal, can improve the flexibility of the self-aligning centering of sealed member, and can increase the deformation space of the first sealed member 4.
Certainly, the structure of sealed member also can as shown in Figure 3, and the first sealed department 11 is conical sealing face, and correspondingly, the second sealed department 21 is the circular arc conical surface fitted with aforementioned conical sealing face.
As preferred version, the angle α between the tangential and longitudinal axis of driveshaft of arc-shaped seal surface is 30 ° ~ 60 °, and angle α can preferably arrange at 45 °.
As shown in Figure 1, first sealed member 4 specifically can adopt " O " shape seal ring, " O " shape seal ring in a free state (namely its as independent individual, be not arranged in receiving cavity 3 of the present invention time state) external diameter of its matrix is 1 ~ 1.3 with the ratio of the internal diameter of described seal disc, the diameter ratio of the diameter reducing part of " O " shape seal ring matrix external diameter in a free state and driveshaft 1 is 1.1 ~ 1.3.Like this, the sealability of the first sealed member 4 can be improved further, but the self-aligning centering of sealed member can not be affected.
Sealed member of the present invention, when it is as a part for other device, such as, when being applied in pressure control device hereafter, the seal disc 2 of sealed member matches with the valve port of pressure controlled valve, when sealed member moves down in the axial direction, seal disc 2 offsets with valve port or is separated, sealed member of the present invention, because it can self-aligning centering, when seal disc and when needing the parts (as valve port) seal to abut, can abut abundant, ensure accurate opening and closing, less desirable leakage can not occur.
Figure 4 shows that the structural representation of the specific embodiment one of pressure control device of the present invention.
As shown in the figure, the pressure control device of the present invention first specific embodiment comprises pressure regulating part 10, valve base part 30, sealed member with valve port 41 and valve pocket 32.Sealed member is arbitrary sealed member of the present invention.Abut against with valve port 41 or be separated under the pressure effect of seal disc 2 in valve pocket 32, namely when the pressure medium in valve pocket 32 is greater than the predefined value of pressure regulating part 10, valve port 41 is opened; When the pressure medium in valve pocket 32 is less than the predefined value of pressure regulating part 10, valve port 41 is closed.The lower end of driveshaft 1 is provided with limit position part 6, and limit position part 6 and stream base engagement limit the stroke of driveshaft 1.Limit position part 6, without concrete structure requirement, as long as can realize its function, such as, can be stop nut.
Valve base part 30 also comprises pedestal 33 and the stream base together with pedestal 33 Joint 34 is (certain, pedestal 33 and stream base 34 may also be and be integrally formed), stream base 34 comprises main body portion 341 and the second guide portion 342, particularly, main body portion 341 is the roughly platy structure of band stream through hole, the extension that the second guide portion 342 stretches out vertically upward for prolonging main body portion 341.The driveshaft 1 of sealed member stretches into the second guide portion 342 and axially can move up and down relative to the second guide portion 342, therebetween Spielpassung, in order to improve the leading role of the second guide portion 342 pairs of driveshafts 1, do not make driveshaft 1 that deflection occurs, the gap delta between driveshaft 1 and the second guide portion 342 preferentially can be set to 4mm to 14mm.Be provided with between stream base 34 and seal disc 2 be set in driveshaft 1 perimembranous compress spring 5, compress spring 5 and all the time seal disc 2 upwards pressed, the second sealed department 21 of seal disc 2 is abutted further with the first sealed department 11 of driveshaft 1.
Figure 5 shows that the structural representation of the specific embodiment two of pressure control device of the present invention.
As shown in the figure, valve base part 30 ' comprise pedestal 33 ', with the stream base 34 ' of pedestal 33 ' Joint (certainly, pedestal 33 ' and stream base 34 ' may also be and be integrally formed), driveshaft 1 is arranged with spring support 7, be provided with between spring support 7 and seal disc 2 and compress spring 5, driveshaft 1 stretches into stream base 34 ' and can move axially relative to stream base 34 ', is provided with guide bearing 8 between stream base 34 ' and spring support 7.
Guide bearing 8 is for having the collar shape structure of upper end guide surface 81 and lower end guide surface 82.(certainly, guide bearing 8 also can be the collar shape structure only with upper end guide surface 81 or lower end guide surface 82).Correspondingly, spring support 7 and stream base 34 ' are above respectively arranged with the fitting surface matched with upper end guide surface 81 and lower end guide surface 82, concrete, and fitting surface can be respectively the first fitting surface 71 and the second fitting surface 34 ' 1 as shown in the figure.Other structures of the pressure control device of this specific embodiment are identical with the pressure control device of specific embodiment one, at this no longer repeated description.
Figure 6 shows that the structural representation of the specific embodiment three of pressure control device of the present invention.
As shown in the figure, from the difference of the pressure control device of the second specific embodiment, the pressure control device of the present invention the 3rd specific embodiment is mainly that the structure of guide bearing is different, guide bearing 8 ' is for having the nonmetal spheroid of axial hole, guide bearing 8 ' has the 3rd guide surface 8 ' 1 and the 4th guide surface 8 ' 2, spring support 7 ' and stream base 35 ' are above respectively arranged with the fitting surface matched with the 3rd guide surface 8 ' 1 and the 4th guide surface 8 ' 2 of guide bearing 8 ', i.e. the 3rd fitting surface 7 ' 1 and the 4th fitting surface 35 ' 1.
Sealed member of the present invention, be flexibly connected between driveshaft with seal disc, and therebetween by the first sealed member sealing, and be provided with sealing adjustment chamber, when the device that the needs that sealed member is applied to pressure control device and so on open and close coordinates, sealed member can not because of the deflection of driveshaft integrated deflection, and can self-aligning centering neatly, collateral security seal disc fully coordinates with other parts (valve port as pressure control device of the present invention).
Pressure control device of the present invention, its preset pressure can regulate and be applied in refrigeration system, when it is connected with the vaporizer of refrigeration system, be arranged on after vaporizer, when predefined value lower than pressure control device of the pressure of vaporizer, pressure control device is closed, refrigerant between vaporizer and pressure control device is increased, and when pressure is opened higher than time default again, can avoid evaporating hypotony like this, constant evaporating pressure can be maintained, make the surface pressure of vaporizer keep constant.Sealed member can ensure the stability of pressure control device work, when it moves up and down relative to valve port, because the self-aligning alignment function of himself deflection can not occur, when seal disc and valve base part abut against, fully airtight to valve port of seal disc can be ensured.Valve port place can not reveal.
Certainly it should be noted that; the nouns of locality such as the upper, middle and lower described in the present invention; just in order to content of the present invention is described better; it is not limiting the scope of the invention; the application of sealed member of the present invention is also not limited to the pressure control device in the present invention, also can be applied to the occasion that other needs.
The above is only a kind of embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. a sealed member, comprises driveshaft (1) and is set in the seal disc (2) of joint of described driveshaft (1), it is characterized in that,
The joint of described driveshaft (1) comprise set gradually the first sealed department (11), diameter reducing part (12) and supporting portion (13),
Described seal disc (2) comprises the second sealed department (21) and the first guide portion (22), described second sealed department (21) and described first sealed department (11) abut against, described first sealed department (11), described diameter reducing part (12), described supporting portion (13) and described first guide portion (22) form receiving cavity (3), the first sealed member (4) is provided with in described receiving cavity (3), described first sealed department (11), sealing adjustment chamber (31) is formed between described first sealed member (4) and described first guide portion (22), described seal disc (2) can relative to the axis rotation of described driveshaft (1).
2. sealed member as claimed in claim 1, it is characterized in that, described first sealed department (11) is specially circular arc or conical sealing face.
3. sealed member as claimed in claim 2, it is characterized in that, described second sealed department (21) is specially the circular arc conical surface fitted with described circular arc or conical sealing face.
4. sealed member as claimed in claim 3, it is characterized in that, described first sealed department (11) is specially arc-shaped seal surface, and the angle (α) between the tangential and longitudinal axis of described driveshaft (1) of described arc-shaped seal surface is 30 ° ~ 60 °.
5. sealed member as claimed in claim 4, it is characterized in that, the angle (α) between the tangential and longitudinal axis of described driveshaft of described arc-shaped seal surface is 45 °.
6. the sealed member as described in any one of claim 1-5, it is characterized in that, described first sealed member (4) is specially " O " shape seal ring, the ratio of the internal diameter of described " O " shape seal ring matrix external diameter in a free state and described seal disc (2) is 1-1.3, and the diameter ratio of the diameter reducing part of described " O " shape seal ring matrix external diameter in a free state and described driveshaft is 1.1-1.3.
7. a pressure control device, comprise pressure regulating part (10) and the valve base part with valve port (41) and valve pocket (32), it is characterized in that, also comprise the sealed member as described in any one of claim 1-6, described seal disc (2) coordinates with described valve port (41), when the pressure medium in described valve pocket (32) is greater than the predefined value of described pressure regulating part (10), described valve port (41) is opened; When the pressure medium in described valve pocket (32) is less than the predefined value of described pressure regulating part (10), described valve port is closed.
8. pressure control device as claimed in claim 7, it is characterized in that, described valve base part comprises pedestal (33) and stream base that is affixed with described pedestal (33) or that be integrally formed, described stream base comprises main body portion (341) and the second guide portion (342), and described driveshaft (1) stretches into described stream base and can move axially relative to described stream base.
9. pressure control device as claimed in claim 8, is characterized in that, also comprises being set in compressing spring (5) between described stream base and described seal disc (2).
10. pressure control device as claimed in claim 7, it is characterized in that, described valve base part comprises pedestal (33 ') and stream base that is affixed with described pedestal (33 ') or that be integrally formed, described driveshaft (1) is arranged with spring support (7), be provided with between described spring support (7) and described seal disc (2) and compress spring (5), described driveshaft (1) stretches into described stream base and can move axially relative to described stream base, is provided with guide bearing between described stream base and described spring support (7).
11. pressure control devices as claimed in claim 10, it is characterized in that, described guide bearing is the thimble structure with upper end guide surface and/or lower end guide surface, and described spring support (7) and/or described stream base are provided with the fitting surface matched with described upper end guide surface and/or described lower end guide surface.
12. pressure control devices as claimed in claim 10, it is characterized in that, described guide bearing is the nonmetal spheroid with axial hole, and described spring support (7) and/or described stream base are provided with the fitting surface matched with described guide bearing.
13. pressure control devices as described in any one of claim 8-12, it is characterized in that, the underpart of described driveshaft (1) is provided with limit position part (6), and described limit position part (6) and described stream base engagement are to limit the stroke of described driveshaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376499.6A CN104197016B (en) | 2014-08-01 | 2014-08-01 | A kind of sealed member and there is the pressure control device of sealing parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410376499.6A CN104197016B (en) | 2014-08-01 | 2014-08-01 | A kind of sealed member and there is the pressure control device of sealing parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104197016A CN104197016A (en) | 2014-12-10 |
| CN104197016B true CN104197016B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410376499.6A Active CN104197016B (en) | 2014-08-01 | 2014-08-01 | A kind of sealed member and there is the pressure control device of sealing parts |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4903941A (en) * | 1987-09-04 | 1990-02-27 | International Hard Suits, Inc. | Pressure equalizing rotary joint |
| JP2001027324A (en) * | 1999-07-12 | 2001-01-30 | Shinou Gijutsu Kk | Seal plate for pipe joint |
| CN201731063U (en) * | 2010-07-15 | 2011-02-02 | 天津双兴达环保输送机械有限公司 | Tail part shaft sealing device of wire rope rubber belt bucket elevator |
| CN201916593U (en) * | 2010-11-22 | 2011-08-03 | 苏州伊奈卫生洁具有限公司 | Water stop sealing structure of faucet valve core |
| CN102691792A (en) * | 2011-03-25 | 2012-09-26 | 江苏天雨环保集团有限公司 | Sleeve valve |
-
2014
- 2014-08-01 CN CN201410376499.6A patent/CN104197016B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4903941A (en) * | 1987-09-04 | 1990-02-27 | International Hard Suits, Inc. | Pressure equalizing rotary joint |
| JP2001027324A (en) * | 1999-07-12 | 2001-01-30 | Shinou Gijutsu Kk | Seal plate for pipe joint |
| CN201731063U (en) * | 2010-07-15 | 2011-02-02 | 天津双兴达环保输送机械有限公司 | Tail part shaft sealing device of wire rope rubber belt bucket elevator |
| CN201916593U (en) * | 2010-11-22 | 2011-08-03 | 苏州伊奈卫生洁具有限公司 | Water stop sealing structure of faucet valve core |
| CN102691792A (en) * | 2011-03-25 | 2012-09-26 | 江苏天雨环保集团有限公司 | Sleeve valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104197016A (en) | 2014-12-10 |
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Effective date of registration: 20170222 Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Patentee after: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. Address before: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Patentee before: ZHEJIANG SANHUA Co.,Ltd. |
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Effective date of registration: 20220809 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: Xia Li Quan, Chengguan Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |