CN104197016A - Sealing component and pressure control device with same - Google Patents
Sealing component and pressure control device with same Download PDFInfo
- Publication number
- CN104197016A CN104197016A CN201410376499.6A CN201410376499A CN104197016A CN 104197016 A CN104197016 A CN 104197016A CN 201410376499 A CN201410376499 A CN 201410376499A CN 104197016 A CN104197016 A CN 104197016A
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- driveshaft
- sealing
- pressure control
- sealed member
- sealed
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Abstract
The invention discloses a sealing component. The sealing component comprises a drive rod and a sealing plate arranged on the connection portion of the drive rod in a sleeved mode, the connection portion of the drive rod sequentially comprises a first sealing portion, a diameter reducing portion and a supporting portion, the sealing plate comprises a second sealing portion and a first guide portion, the second sealing portion is connected with the first sealing portion in a butt-joint mode, the first sealing portion, the diameter reducing portion, the supporting portion and the first guide portion constitute a containing cavity, a first sealing part is arranged in the containing cavity, a sealing adjustment cavity is formed among the first sealing portion, the first sealing part and the first guide portion, and the sealing plate can rotate relative to the axis of the drive rod. According to the sealing component, the drive plate is movably connected with the sealing plate, and automatic centering can be achieved. The invention further discloses a pressure control device with the sealing component.
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 with respect 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 butt or away from the port part 101 of valve base part 100.Seal between bar 201 and Sealing 202 when ensureing Sealing 202 and port part 101 butt, often adopts the mode that the two is fixed together by welding in prior art.Now, although between bar 201 and Sealing 202, there is the possibility reduction of revealing,, its drawback is, when bar 201 is in operating process during because of certain reason generation deflection, must there is deflection with bar 201 in Sealing 202, and now Sealing 202 cannot shutdown side oral area 101.
Summary of the invention
In order to address the above problem, the invention provides a kind of sealed member,, can there is not less desirable deflection, thereby 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 the joint of described driveshaft, the joint of described driveshaft comprises the first sealed department, diameter reducing part and the supporting portion that set gradually,
Described seal disc comprises the second sealed department and the first guide portion, described the second sealed department and described the first sealed department connect, described the first sealed department, described diameter reducing part, described supporting portion and described the first guide portion form receiving cavity, in described receiving cavity, be provided with the first sealed member, between described the first sealed department, described the first sealed member and described the first guide portion, form sealing and regulate chamber, described seal disc can rotate with respect to the axle center of described driveshaft.
The sealed member of structure as mentioned above, described the first sealed department is specially circular arc or conical sealing surface.
The sealed member of structure as mentioned above, described the second sealed department is specially the circular arc conical surface fitting with described circular arc or conical sealing surface.
The sealed member of structure as mentioned above, described the first sealed department is specially arc-shaped seal surface, and the angle between the longitudinal axis of the tangential and described driveshaft of described arc-shaped seal surface is 30 °～60 °.
The sealed member of structure as mentioned above, the angle between the longitudinal axis of the tangential and described driveshaft of described arc-shaped seal surface is 45 °.
The sealed member of structure as mentioned above, described the first sealed member is specially " O " shape seal ring, the matrix external diameter of described " O " shape seal ring under free state is 1-1.3 with the ratio of the internal diameter of described seal disc, the matrix external diameter of described " O " shape seal ring under 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, in the time that the pressure medium in described valve pocket is greater than the predefined value of described pressure regulating part, described valve port is opened; In the time that 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 as mentioned above, described valve base part comprises pedestal and stream base 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 with respect to described stream base.
The pressure control device of structure, also comprises the spring that compresses being set between described stream base and described seal disc as mentioned above.
The pressure control device of structure as mentioned above, described valve base part comprises pedestal and stream base affixed with described pedestal or that be integrally formed, on described driveshaft, be arranged with spring support, between described spring support and described seal disc, be provided with and compress spring, described driveshaft stretches into described stream base and can move axially with respect to described stream base, between described stream base and described spring support, is provided with guide bearing.
The pressure control device of structure as mentioned 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 as mentioned above, described guide bearing is the nonmetal spheroid with axial hole, described spring support and/or described stream base are provided with the fitting surface matching with described guide bearing.
The as mentioned above pressure control device of structure, the underpart of described driveshaft is provided with limit position part, and described limit position part and described stream base coordinate to limit the stroke of described driveshaft.
Sealed member of the present invention, can carry out self-aligning centering, when it is during as other device a part of, for example, during as sealed member in pressure control device, the seal disc of sealed member matches with the valve port of pressure control device, in the time that sealed member moves down in the axial direction, seal disc offsets with valve port or separates, and sealed member of the present invention, because it can self-aligning centering, in the time of seal disc and valve port (or other parts) butt, can butt abundant, ensure the accurate switching of valve port, can there is not less desirable leakage.
Brief description of the drawings
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 the joint of driveshaft 1, and seal disc 2 can rotate with respect to the axle center of driveshaft 1.The joint of driveshaft 1 comprises the first sealed department 11, diameter reducing part 12 and the supporting portion 13 that set gradually from top to bottom.Seal disc 2 comprises the second sealed department 21 and the first guide portion 22.The second sealed department 21 and the first sealed department 11 connect.The 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.Between the first sealed department 11, the first sealed member 4 and the first guide portion 22, be formed with sealing and regulate chamber 31.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, can under equal conditions, increase deformation space, be more conducive to the compressive strain of the first sealed member 4.And in the time that sealed member moves up and down, for preventing that driveshaft 1 is because of manual operation or other reason generation deflection, sealing regulates chamber 31 to make driveshaft 1 carry out self-aligning centering with respect to seal disc 2, thereby prevent that sealed member entirety from deflection occurring.
As shown in Figure 1, the first sealed department 11 can be arc-shaped seal surface, and corresponding the second sealed department is the conical surface fitting 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 be as shown in Figure 3, and the first sealed department 11 is conical sealing surface, and correspondingly, the second sealed department 21 is the circular arc conical surface fitting with aforementioned conical sealing surface.
As preferred version, the angle α between the longitudinal axis of the tangential and driveshaft of arc-shaped seal surface is 30 °～60 °, and angle α can preferably arrange at 45 °.
As shown in Figure 1, the first sealed member 4 can specifically adopt " O " shape seal ring, " O " shape seal ring (being its state as independent individual, while not being arranged in receiving cavity 3 of the present invention) external diameter of its matrix under free state is 1～1.3 with the ratio of the internal diameter of described seal disc, and the diameter ratio of the diameter reducing part of the matrix external diameter of " O " shape seal ring under free state and driveshaft 1 is 1.1～1.3.Like this, can further improve the sealability of the first sealed member 4, but can not affect the self-aligning centering of sealed member.
Sealed member of the present invention, when it is as a part for other device, for example, while being applied in pressure control device below, the seal disc 2 of sealed member matches with the valve port of pressure controlled valve, in the time that sealed member moves down in the axial direction, seal disc 2 offsets with valve port or separates, sealed member of the present invention, because it can self-aligning centering, when seal disc is when needing parts (as the valve port) butt of sealing, can butt abundant, ensure accurately to open and close, 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.
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's the first specific embodiment comprises pressure regulating part 10, valve base part 30, sealed member with valve port 31 and valve pocket 32.Sealed member is arbitrary sealed member of the present invention.Under the pressure-acting of seal disc 2 in valve pocket 32, connect or separate with valve port 31,, in the time that the pressure medium in valve pocket 31 is greater than the predefined value of pressure regulating part 10, valve port 31 is opened; In the time that the pressure medium in valve pocket 31 is less than the predefined value of pressure regulating part 10, valve port 31 is closed.The lower end of seal disc 2 is provided with limit position part 6, the stroke of limit position part 6 and stream base engagement limits driveshaft 1.Limit position part 6, without concrete structure requirement, as long as can realize its function, for example, can be stop nut.
Valve base part 30 also comprises pedestal 33 and the stream base 34 together with pedestal 33 Joints (certainly, pedestal 33 is also integrally formed with stream base 34), stream base 34 comprises main body portion 341 and the second guide portion 342, particularly, main body portion 341 is the roughly platy structure with stream through hole, and the second guide portion 342 is for prolonging the extension that main body portion 341 stretches out vertically upward.The driveshaft 1 of sealed member stretches into the second guide portion 342 and can axially move up and down with respect to the second guide portion 342, Spielpassung between the two, in order to improve the second leading role of guide portion 342 to driveshaft 1, do not make driveshaft 1 that deflection occurs, the gap delta between driveshaft 1 and the second guide portion 342 can preferentially be set to 4mm to 14mm.Between stream base 34 and seal disc 2, be provided with the butt spring 5 that is set in driveshaft 1 perimembranous, butt spring 5 is upwards pressed seal disc 2 all the time, makes the second sealed department 21 of seal disc 2 and the further butt of 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 ' be integrally formed with stream base 34 ' also), be arranged with spring support 7 on driveshaft 1, between spring support 7 and seal disc 2, be provided with and compress spring 5, driveshaft 1 stretches into stream base 34 ' and can be with respect to stream base 34 ' move axially, stream base 34 ' and spring support 7 between be provided with guide bearing 8.
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 can be also the collar shape structure only with upper end guide surface 81 or lower end guide surface 82).Correspondingly, be respectively arranged with the fitting surface matching with upper end guide surface 81 and lower end guide surface 82 on spring support 7 and stream base 35, concrete, 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 repeated description no longer.
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, the pressure control device of the present invention's the 3rd specific embodiment is mainly that from the difference of the pressure control device of the second specific embodiment the structure of guide bearing is different, guide bearing 8 ' for thering is the nonmetal spheroid of axial hole, guide bearing 8 ' have the 3rd guide surface 8 ' 1 and the 4th guide surface 8 ' 2, spring support 7 and stream base 35 ' be above respectively arranged with and guide bearing 8 ' the 3rd guide surface 8 ' 1 and the fitting surface that matches of the 4th guide surface 8 ' 2, i.e. the 3rd fitting surface 7 ' 1 and the 4th fitting surface 35 ' 1.
Sealed member of the present invention, between driveshaft and seal disc, be flexibly connected, and seal by the first sealed member between the two, and be provided with sealing regulate chamber, in the time that sealed member is applied to the device cooperation of needs keying of pressure control device and so on, sealed member can be because of the deflection integrated deflection of driveshaft, and self-aligning centering neatly, and collateral security seal disc fully coordinates with other parts (as the valve port of 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, in the time that it is connected with the vaporizer of refrigeration system, be arranged on vaporizer after, when the pressure of vaporizer is during lower than the predefined value of pressure control device, pressure control device is closed, refrigerant between vaporizer and pressure control device is increased, open when default when pressure again, hypotony like this can avoid evaporating, can maintain constant evaporating pressure, make the surface pressure of vaporizer keep constant.Sealed member can ensure the stability of pressure control device work, in the time that it moves up and down with respect to valve port, because deflection can not occur the self-aligning alignment function of himself, in the time that seal disc and valve base part connect, can ensure fully airtight to valve port of seal disc.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 for 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 the joint of described driveshaft (1), it is characterized in that,
The joint of described driveshaft (1) comprises the first sealed department (11) of setting gradually, 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 the second sealed department (21) connects with described the first sealed department (11), described the first sealed department (11), described diameter reducing part (12), described supporting portion (13) and described the first guide portion (22) form receiving cavity (3), in described receiving cavity (3), be provided with the first sealed member (4), described the first sealed department (11), between described the first sealed member (4) and described the first guide portion (22), form sealing and regulate chamber (31), described seal disc (2) can rotate with respect to the axle center of described driveshaft (1).
2. sealed member as claimed in claim 1, is characterized in that, described the first sealed department (11) is specially circular arc or conical sealing surface.
3. sealed member as claimed in claim 2, is characterized in that, described the second sealed department (21) is specially the circular arc conical surface fitting with described circular arc or conical sealing surface.
4. sealed member as claimed in claim 3, it is characterized in that, described the first sealed department (11) is specially arc-shaped seal surface, and the angle (α) between the longitudinal axis of the tangential and described driveshaft (1) of described arc-shaped seal surface is 30 °～60 °.
5. sealed member as claimed in claim 4, is characterized in that, the angle (α) between the longitudinal axis of the tangential and described driveshaft of described arc-shaped seal surface is 45 °.
6. the sealed member as described in claim 1-5 any one, it is characterized in that, described the first sealed member (4) is specially " O " shape seal ring, the ratio of the internal diameter of the matrix external diameter of described " O " shape seal ring under free state and described seal disc (2) is 1-1.3, the matrix external diameter of described " O " shape seal ring under free state and described driveshaft the diameter ratio of diameter reducing part be 1.1-1.3.
7. a pressure control device, comprise pressure regulating part (10) and the valve base part with valve port (31) and valve pocket (32), it is characterized in that, also comprise the sealed member as described in claim 1-6 any one, described seal disc (2) coordinates with described valve port (31), in the time that the pressure medium in described valve pocket (32) is greater than the predefined value of described pressure regulating part (10), described valve port (31) is opened; In the time that 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 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 with respect 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 affixed with described pedestal (33 ') or that be integrally formed, on described driveshaft (1), be arranged with spring support (7), between described spring support (7) and described seal disc (2), be provided with and compress spring (5), described driveshaft (1) stretches into described stream base and can move axially with respect to described stream base, between described stream base and described spring support (7), is provided with guide bearing.
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 matching 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 matching with described guide bearing.
13. pressure control devices as described in claim 8-12 any one, it is characterized in that, the underpart of described driveshaft (1) is provided with limit position part (6), and described limit position part (6) coordinates to limit the stroke of described driveshaft (1) with described stream base.
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 true CN104197016A (en) | 2014-12-10 |
| CN104197016B CN104197016B (en) | 2016-04-13 |
Family
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Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104197016B (en) |
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 |
|---|---|
| CN104197016B (en) | 2016-04-13 |
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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. |