CN203880095U - Pressure resisting type U-shaped spring energy accumulation lip-shaped sealing ring - Google Patents
Pressure resisting type U-shaped spring energy accumulation lip-shaped sealing ring Download PDFInfo
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- CN203880095U CN203880095U CN201420274456.2U CN201420274456U CN203880095U CN 203880095 U CN203880095 U CN 203880095U CN 201420274456 U CN201420274456 U CN 201420274456U CN 203880095 U CN203880095 U CN 203880095U
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- lip
- shaped spring
- seal ring
- sealing ring
- shaped
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Abstract
The utility model provides a pressure resisting type U-shaped spring energy accumulation lip-shaped sealing ring. The pressure resisting type U-shaped spring energy accumulation lip-shaped sealing ring comprises a body and a U-shaped spring. One end of the body is provided with an upper sealing ring lip and a lower sealing ring lip, an annular cavity is formed between the upper sealing ring lip and the lower sealing ring lip, the outer side wall of the upper sealing ring lip and the outer side wall of the lower sealing ring lip are provided with continuous fold line protrusions, and the inner side wall of the upper sealing ring lip is parallel to the inner side wall of the lower sealing ring lip. The U-shaped spring is arranged in the annular cavity between the upper sealing ring lip and the lower sealing ring lip, the two sides of the U-shaped spring extend towards the two sides, and an opening of the U-shaped spring points at the exterior. The U-shaped spring comprises a tooth-shaped flat belt with the U-shaped cross section, and the two ends of the flat belt are connected to form a circular ring. According to the pressure resisting type U-shaped spring energy accumulation lip-shaped sealing ring, radial compensation can be achieved, the sealing performance is enhanced, and the pressure resisting type U-shaped spring energy accumulation lip-shaped sealing ring has the advantages of resisting to high pressure and extrusion.
Description
Technical field
The utility model relates to the Sealing that a kind of machinery is used, and specifically, relates to the U-shaped spring energy-storage lip-type packing of a kind of pressure-resistant for piston and rod seal.
Background technique
Seal ring, as a kind of conventional mechanical parts, is widely used in all trades and professions, and the sealing of reciprocating piston and piston rod generally adopts lip-type packing.The cross section of lip-type packing is lip, has upper lip and lower lip, while using lip-type packing, upper lip and lower lip is squeezed in to be sealed above, has good sealing effect.
The sealing force of lip-type packing is mainly derived from the upper lip of system itself and seal ring and the elasticity of lower lip self provides, and that is to say, when pressure that lip-type packing is subject to is larger, its sealing effect is better.And the sealing force of lip-type packing self is limited, the in the situation that of high pressure, can not meet the requirement to sealing force in to-and-fro motion.In addition, in the time that lip-type packing is subject to high pressure, especially, back and forth, under the moving condition of high pressure, lip-type packing is extruded from contacting point, causes seal failure.
Summary of the invention
Technical problem to be solved in the utility model is to provide the U-shaped spring energy-storage lip-type packing of a kind of pressure-resistant, can realize radial compensation, has advantages of anti-high pressure, resistance to extruding, and can strengthen sealability.
For achieving the above object, the utility model provides a kind of pressure-resistant U-shaped spring energy-storage lip-type packing, it comprises: main body, described main body one end is provided with seal ring upper lip and seal ring lower lip, between described seal ring upper lip and described seal ring lower lip, be provided with annular chamber, the outer side wall of the outer side wall of described seal ring upper lip and described seal ring lower lip is provided with continuous broken line projection, and the madial wall of the madial wall of described seal ring upper lip and described seal ring lower lip is parallel to each other; U-shaped spring, in the horizontal described annular chamber between described seal ring upper lip and described seal ring lower lip of described U-shaped spring, extend to both sides on two limits of described U-shaped spring, and the opening of described U-shaped spring points to outside.
Preferably, described U-shaped spring comprises the Flat belt of dentation, and the cross section of described Flat belt is U-shaped, and the two ends of described Flat belt are connected to form an annulus.
Preferably, the length of described seal ring upper lip and described seal ring lower lip is less than described principal length.
Preferably, the width of the opening of described annular chamber is less than the width of the opening of described U-shaped spring.
In addition, preferably, described seal ring upper lip and described seal ring lower lip axisymmetric.
From above-mentioned description with put into practice, the U-shaped spring energy-storage lip-type packing of pressure-resistant that the utility model provides, one, between the seal ring upper lip of main body and seal ring lower lip, be provided with horizontal U-shaped spring, U-shaped spring can provide stress compensation, can realize radial compensation, sealing load is from inside to outside provided, bear the impressed pressure of ecto-entad; Its two, the ability that U-shaped spring can increase main body and bears pressure between seal ring upper lip and seal ring lower lip, and the Multi-level sealing structure of seal ring upper lip and seal ring lower lip, increase sealability; Auxiliary seal effect can be played in the joint of seal ring upper lip and seal ring lower lip, and while avoiding high pressure, main body is extruded, and causes seal failure; Its three, on the outer side wall of the outer side wall of seal ring upper lip and seal ring lower lip, broken line projection is multistage lip structure, each lip all has seal action, main body can be formed multi-stage sealed, improves sealability and effect.
Brief description of the drawings
By the description to embodiment below in conjunction with accompanying drawing, above-mentioned feature of the present utility model and technological merit will become apparent and easily understand.In the accompanying drawings,
The sectional view of the U-shaped spring energy-storage lip-type packing of pressure-resistant described in Fig. 1 the utility model one embodiment;
Fig. 2 is the schematic diagram of the main body of the U-shaped spring energy-storage lip-type packing of the pressure-resistant shown in Fig. 1;
Fig. 3 a is the Flat belt schematic diagram of the U-shaped spring energy-storage lip-type packing of the pressure-resistant shown in Fig. 1;
Fig. 3 b be the U-shaped spring energy-storage lip-type packing of the pressure-resistant shown in Fig. 3 a the schematic diagram of annulus that forms of Flat belt.
The U-shaped spring energy-storage lip-type packing 100 of pressure-resistant
1: main body; 11: seal ring upper lip; 12: seal ring lower lip;
13: annular chamber; 14: broken line projection;
2:U type spring; 21: Flat belt; 22: annulus.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The sectional view of the U-shaped spring energy-storage lip-type packing of pressure-resistant described in Fig. 1 the utility model one embodiment.Fig. 2 is the schematic diagram of the main body of the U-shaped spring energy-storage lip-type packing of the pressure-resistant shown in Fig. 1.Fig. 3 a is the Flat belt schematic diagram of the U-shaped spring energy-storage lip-type packing of the pressure-resistant shown in Fig. 1.Fig. 3 b be the U-shaped spring energy-storage lip-type packing of the pressure-resistant shown in Fig. 3 a the schematic diagram of annulus that forms of Flat belt.As shown in Figure 1, the U-shaped spring energy-storage lip-type packing 100 of pressure-resistant comprises main body 1 and U-shaped spring 2.
As shown in Figure 2, the cross section of main body 1 is U-shaped, and main body 1 one end is provided with seal ring upper lip 11 and seal ring lower lip 12, preferably, and described seal ring upper lip and described seal ring lower lip axisymmetric.Between seal ring upper lip 11 and seal ring lower lip 12, be provided with annular chamber 13, the outer side wall of the outer side wall of seal ring upper lip 11 and seal ring lower lip 12 is provided with continuous broken line projection 14, broken line projection 14 forms multistage lip structure, each lip all has seal action, main body 1 can be formed multi-stage sealed, improve sealability and effect.The madial wall of the madial wall of seal ring upper lip 11 and seal ring lower lip 12 is parallel to each other.Main body 1 axisymmetricly.Preferably, the length of seal ring upper lip 11 and seal ring lower lip 12 is less than main body 1 length.Main body 1 has one end of seal ring upper lip 11 and seal ring lower lip 12, can provide sealing force for to be sealed, the other end of main body 1 is the joint of seal ring upper lip 11 and seal ring lower lip 12, increase the length of joint, contribute to strengthen main body 1 and the binding ability of to be sealed, while avoiding overpressure, main body 1 is extruded, and causes seal failure.The material that main body 1 is used is high molecular polymer, for example high-molecular polythene, teflon etc.
In the horizontal annular chamber 13 between seal ring upper lip 11 and seal ring lower lip 12 of U-shaped spring 2, extend to both sides on two limits of U-shaped spring 2, and the opening of U-shaped spring 2 points to outside.The both sides of U-shaped spring 2 are against respectively on the madial wall of seal ring upper lip 11 and seal ring lower lip 12.Preferably, the width of the opening of annular chamber 13 is less than the width of the opening of U-shaped spring 2.Because the madial wall of seal ring upper lip 11 and the madial wall of seal ring lower lip 12 are parallel to each other, and extend laterally on two limits of U-shaped spring 2, U-shaped spring 2 can be stuck in annular chamber 13, avoid U-shaped spring 2 from the interior slippage of annular chamber 4, thereby provide sealing force for seal ring upper lip 11 and seal ring lower lip 12.
Preferably, U-shaped spring 2 comprises the Flat belt 21 of dentation, and the cross section of Flat belt 21 is U-shaped, and the two ends of Flat belt 21 are connected to form an annulus 22.
As shown in Figure 3 a, U-shaped spring 2 is Flat belts 21, is to strike out dentation by flat steel band, then bending, makes cross section approximate U-shaped, and Flat belt 21 is galleyproof type, in the time not being subject to external influence power, two vertical edges of U-shaped Flat belt 21 are parallel to each other, and one end of two vertical edges is fixed by a horizontal edge.In the time being subject to external influence power, one end that two vertical edges of U-shaped Flat belt 21 do not connect is pressed close to mutually.
As shown in Figure 3 b, the two ends of the Flat belt of long strip as shown in Figure 3 a 21 are coupled together, for example welding, forms and is positioned at conplane annulus 23.
The material that U-shaped spring uses is stainless steel or alloy.
The U-shaped spring energy-storage lip-type packing of pressure-resistant that the embodiment who provides by above-mentioned the utility model provides, one, between the seal ring upper lip of main body and seal ring lower lip, be provided with horizontal U-shaped spring, U-shaped spring can provide stress compensation, can realize radial compensation, sealing load is from inside to outside provided, bears the impressed pressure of ecto-entad; Its two, the ability that U-shaped spring can increase main body and bears pressure between seal ring upper lip and seal ring lower lip, and the Multi-level sealing structure of seal ring upper lip and seal ring lower lip, increase sealability; Auxiliary seal effect can be played in the joint of seal ring upper lip and seal ring lower lip, and while avoiding high pressure, main body is extruded, and causes seal failure; Its three, on the outer side wall of the outer side wall of seal ring upper lip and seal ring lower lip, broken line projection is multistage lip structure, each lip all has seal action, main body can be formed multi-stage sealed, improves sealability and effect.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any people who is familiar with this technology is in the disclosed technical scope of the utility model; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (5)
1. the U-shaped spring energy-storage lip-type packing of pressure-resistant, is characterized in that, it comprises:
Main body, described main body one end is provided with seal ring upper lip and seal ring lower lip, between described seal ring upper lip and described seal ring lower lip, be provided with annular chamber, the outer side wall of the outer side wall of described seal ring upper lip and described seal ring lower lip is provided with continuous broken line projection, and the madial wall of the madial wall of described seal ring upper lip and described seal ring lower lip is parallel to each other;
U-shaped spring, in the horizontal described annular chamber between described seal ring upper lip and described seal ring lower lip of described U-shaped spring, extend to both sides on two limits of described U-shaped spring, and the opening of described U-shaped spring points to outside.
2. the U-shaped spring energy-storage lip-type packing of pressure-resistant as claimed in claim 1, is characterized in that, described U-shaped spring comprises the Flat belt of dentation, and the cross section of described Flat belt is U-shaped, and the two ends of described Flat belt are connected to form an annulus.
3. the U-shaped spring energy-storage lip-type packing of pressure-resistant as claimed in claim 1, is characterized in that, the length of described seal ring upper lip and described seal ring lower lip is less than described principal length.
4. the U-shaped spring energy-storage lip-type packing of pressure-resistant as claimed in claim 1, is characterized in that, the width of the opening of described annular chamber is less than the width of the opening of described U-shaped spring.
5. the U-shaped spring energy-storage lip-type packing of pressure-resistant as claimed in claim 1, is characterized in that, described seal ring upper lip and described seal ring lower lip axisymmetric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274456.2U CN203880095U (en) | 2014-05-27 | 2014-05-27 | Pressure resisting type U-shaped spring energy accumulation lip-shaped sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274456.2U CN203880095U (en) | 2014-05-27 | 2014-05-27 | Pressure resisting type U-shaped spring energy accumulation lip-shaped sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880095U true CN203880095U (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420274456.2U Expired - Fee Related CN203880095U (en) | 2014-05-27 | 2014-05-27 | Pressure resisting type U-shaped spring energy accumulation lip-shaped sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880095U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633127A (en) * | 2014-12-29 | 2015-05-20 | 东莞市科雷明斯密封科技有限公司 | Sealing ring for reaction kettle |
| CN105042077A (en) * | 2015-07-07 | 2015-11-11 | 青岛睿辰密封科技有限公司 | High-performance multi-purpose tooth-shaped Y-shaped combined seal device |
| CN105485346A (en) * | 2016-02-23 | 2016-04-13 | 亿德机电科技（福建）有限公司 | Seal capable of radially rotating and axially sliding |
| CN105548052A (en) * | 2015-02-13 | 2016-05-04 | 北京仁木科技有限公司 | Testing cavity with continuously adjustable length applied to cavity ring-down spectroscope technology |
| CN105673861A (en) * | 2016-04-18 | 2016-06-15 | 北京裕泰行新材料科技有限公司 | Sealing device capable of relieving pressure automatically |
| CN105697786A (en) * | 2016-04-18 | 2016-06-22 | 北京裕泰行新材料科技有限公司 | Ultra-low-temperature sealing ring |
| CN106136911A (en) * | 2016-08-29 | 2016-11-23 | 严月玲 | A kind of Novel hot power Folium Camelliae sinensis feeder |
| CN106264145A (en) * | 2016-08-29 | 2017-01-04 | 严月玲 | A kind of novel pneumatic Folium Camelliae sinensis feeder |
| CN106308517A (en) * | 2016-08-29 | 2017-01-11 | 严月玲 | Pneumatic tea feeder |
| CN108474481A (en) * | 2016-02-02 | 2018-08-31 | Nok株式会社 | Sealing device |
-
2014
- 2014-05-27 CN CN201420274456.2U patent/CN203880095U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633127A (en) * | 2014-12-29 | 2015-05-20 | 东莞市科雷明斯密封科技有限公司 | Sealing ring for reaction kettle |
| CN105548052A (en) * | 2015-02-13 | 2016-05-04 | 北京仁木科技有限公司 | Testing cavity with continuously adjustable length applied to cavity ring-down spectroscope technology |
| CN105042077A (en) * | 2015-07-07 | 2015-11-11 | 青岛睿辰密封科技有限公司 | High-performance multi-purpose tooth-shaped Y-shaped combined seal device |
| US10605367B2 (en) | 2016-02-02 | 2020-03-31 | Nok Corporation | Sealing apparatus |
| CN108474481A (en) * | 2016-02-02 | 2018-08-31 | Nok株式会社 | Sealing device |
| CN105485346A (en) * | 2016-02-23 | 2016-04-13 | 亿德机电科技（福建）有限公司 | Seal capable of radially rotating and axially sliding |
| CN105697786B (en) * | 2016-04-18 | 2017-09-22 | 北京裕泰行新材料科技有限公司 | Ultralow temperature sealing ring |
| CN105673861B (en) * | 2016-04-18 | 2017-09-29 | 北京裕泰行新材料科技有限公司 | From pressure release sealing device |
| CN105697786A (en) * | 2016-04-18 | 2016-06-22 | 北京裕泰行新材料科技有限公司 | Ultra-low-temperature sealing ring |
| CN105673861A (en) * | 2016-04-18 | 2016-06-15 | 北京裕泰行新材料科技有限公司 | Sealing device capable of relieving pressure automatically |
| CN106264145A (en) * | 2016-08-29 | 2017-01-04 | 严月玲 | A kind of novel pneumatic Folium Camelliae sinensis feeder |
| CN106308517A (en) * | 2016-08-29 | 2017-01-11 | 严月玲 | Pneumatic tea feeder |
| CN106136911A (en) * | 2016-08-29 | 2016-11-23 | 严月玲 | A kind of Novel hot power Folium Camelliae sinensis feeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20170527 |