CN109667785B - Sealing structure of automatic coupling device - Google Patents
Sealing structure of automatic coupling device Download PDFInfo
- Publication number
- CN109667785B CN109667785B CN201811540557.9A CN201811540557A CN109667785B CN 109667785 B CN109667785 B CN 109667785B CN 201811540557 A CN201811540557 A CN 201811540557A CN 109667785 B CN109667785 B CN 109667785B
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing structure
- coupling interface
- contact surface
- water outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The water pump comprises a coupling interface, a sealing structure, a pump outlet flange and a water outlet base flange, wherein the coupling interface is connected with the pump outlet flange, and the coupling interface is provided with the sealing structure which is in sealing fit with the water outlet base flange. The sealing structure comprises a sealing block, an upper lip, a metal framework, a sealing cavity, an air bag, a sealing cavity inclined plane, a shell, a lower lip and an adhesive, wherein the metal framework is arranged in the shell; the air bag is arranged in the sealed cavity; the upper lip and the lower lip of the shell are bonded with the sealing block through an adhesive; and a pressure relief groove is arranged on the sealing contact surface of the water outlet base flange and the coupling interface. The invention utilizes the radial force generated by the medium conveyed by the pump entering the cavity, the air bag arranged in the structure is extruded to deform, thereby generating pressing force on the sealing contact surface, the elastic energy stored in the sealing block is gradually released, the axial compensation effect is realized, and the sealing property of the contact surface can be greatly improved.
Description
Technical Field
The invention relates to the field of mechanical engineering, in particular to a sealing structure of an automatic coupling device.
Background
At present, an automatic coupling device is often adopted between the submersible pump and the drainage base, the sealing mode in the prior art is a mode that a flange surface directly faces the flange surface, namely a hard sealing mode, and part of the sealing mode is provided with an end face sealing ring on a flange contact surface, so that the sealing performance is further improved. But inevitably can the vibration problem appear in the operation of water pump in-process, and the medium of carrying is mostly solid-liquid mixture in addition, often can lead to the contact surface sealing performance to reduce to lead to revealing the accident, reduced pump efficiency, influence its normal use.
Disclosure of Invention
In order to solve the problems, the invention relates to a sealing structure of an automatic coupling device, an air bag arranged in a cavity of the sealing structure is compressed by a radial force generated by extruding a sealing device shell by a conveying medium and is deformed, so that a pressing force to a sealing contact surface is generated, and along with uniform abrasion of a sealing end surface, elastic energy stored in a sealing block is gradually released, so that an axial compensation effect is achieved, and the sealing property of the contact surface can be greatly improved.
The purpose of the invention is realized by the following technical scheme:
the invention comprises a coupling interface, a sealing structure, a pump outlet flange and a water outlet base flange, wherein the coupling interface is connected with the pump outlet flange; the air bag is arranged in the sealed cavity; the upper lip and the lower lip of the shell are bonded with the sealing block through an adhesive; and a pressure relief groove is arranged on the sealing contact surface of the water outlet base flange and the coupling interface.
Further, the shell of the sealing structure is made of rubber materials;
furthermore, the section of the sealing structure is in a shape of Chinese character 'hui';
furthermore, the inclined angle of the sealing cavity inclined plane of the sealing structure is 10-15 degrees;
further, the metal framework is made of an iron alloy material;
furthermore, the width of a sealing contact surface between the water outlet base flange and the coupling interface is 0.4-0.6 mm;
furthermore, the pressure relief grooves are uniformly distributed on the sealing contact surface of the water outlet base flange and the coupling interface.
The invention has the beneficial effects that: the invention utilizes the radial force generated by the medium conveyed by the pump entering the cavity, the air bag arranged in the structure is extruded to deform, thereby generating pressing force on the sealing contact surface, and the elastic energy stored in the sealing block is gradually released along with the uniform abrasion of the sealing end surface, thereby playing the role of axial compensation and greatly improving the sealing property of the contact surface.
Drawings
FIG. 1 is a schematic structural view of a sealing structure of an automatic coupling device according to the present invention;
fig. 2 is a partially enlarged schematic view of a sealing structure of an automatic coupling device of the present invention.
In the figure: the pump comprises a coupling interface 1, a sealing structure 2, a pump outlet flange 3, a water outlet base flange 4, a sealing block 201, an upper lip 202, a metal framework 203, a sealing cavity 204, an air bag 205, a sealing cavity inclined plane 206, a shell 207, a lower lip 208, an adhesive 209 and a pressure relief groove 401.
Detailed Description
As shown in fig. 1, the water pump comprises a coupling interface 1, a sealing structure 2, a pump outlet flange 3 and a water outlet base flange 4, wherein the coupling interface 1 is connected with the pump outlet flange 3, and the coupling interface 1 is provided with the sealing structure 2 which is in sealing fit with the water outlet base flange 4.
As shown in fig. 2, the sealing structure of the present invention includes a sealing block 201, an upper lip 202, a metal frame 203, a sealing cavity 204, an air bag 205, a sealing cavity inclined plane 206, a housing 207, a lower lip 208, and an adhesive 209, wherein the metal frame 203 is disposed in the housing 207; the air bag 205 is arranged in the sealed cavity 204; the upper lip 202 and the lower lip 208 of the housing are bonded to the seal block 201 by an adhesive 209; and a pressure relief groove 401 is arranged on the sealing contact surface of the water outlet base flange 4 and the coupling interface 1. The shell 207 of the sealing structure is made of rubber material; the section of the sealing structure 2 is in a shape of Chinese character 'hui'; the inclined angle of the inclined plane of the sealing cavity 204 of the sealing structure 2 is 10-15 degrees; the metal framework is made of iron alloy material; the width of a sealing contact surface between the water outlet base flange 4 and the coupling interface 1 is 0.4-0.6 mm; the pressure relief grooves 401 are uniformly distributed on the sealing contact surface of the water outlet base flange and the coupling interface.
When the pump starts to operate, the sealing block 201 deforms to store energy, a medium conveyed by the pump rapidly flows through the sealing shell 207 to generate a high-pressure area, the wall surface of the lower lip portion 208 of the shell 207 is pressed to deform and extrude the air bag 205 with a low-pressure area arranged in the cavity, so that the air bag 205 extrudes towards one side of the sealing block 201 to generate pressing force on a sealing contact surface, meanwhile, elastic energy stored in the sealing cavity 204 is gradually released to generate reverse force on the air bag 205 to play an axial compensation role, and therefore the sealing performance of the whole device is greatly improved.
Claims (7)
1. A sealing structure of an automatic coupling device comprises a coupling interface, a sealing structure, a pump outlet flange and a water outlet base flange, wherein the coupling interface is connected with the pump outlet flange; the air bag is arranged in the sealed cavity; the upper lip and the lower lip of the shell are bonded with the sealing block through an adhesive; and a pressure relief groove is arranged on the sealing contact surface of the water outlet base flange and the coupling interface.
2. A sealing structure of an automatic coupling device according to claim 1, wherein: the shell of the sealing structure is made of rubber materials.
3. A sealing structure of an automatic coupling device according to claim 1, wherein: the section of the sealing structure is in a shape of Chinese character hui.
4. A sealing structure of an automatic coupling device according to claim 1, wherein: the inclined angle of the sealing cavity inclined plane of the sealing structure is 10-15 degrees.
5. A sealing structure of an automatic coupling device according to claim 1, wherein: the metal framework is made of iron alloy materials.
6. A sealing structure of an automatic coupling device according to claim 1, wherein: the width of the sealing contact surface between the water outlet base flange and the coupling interface is 0.4-0.6 mm.
7. A sealing structure of an automatic coupling device according to claim 1, wherein: the pressure relief grooves are uniformly distributed on the sealing contact surface of the water outlet base flange and the coupling interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540557.9A CN109667785B (en) | 2018-12-17 | 2018-12-17 | Sealing structure of automatic coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540557.9A CN109667785B (en) | 2018-12-17 | 2018-12-17 | Sealing structure of automatic coupling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109667785A CN109667785A (en) | 2019-04-23 |
| CN109667785B true CN109667785B (en) | 2020-05-12 |
Family
ID=66144366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811540557.9A Active CN109667785B (en) | 2018-12-17 | 2018-12-17 | Sealing structure of automatic coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109667785B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131217A (en) * | 2019-05-14 | 2019-08-16 | 安德里茨（中国）有限公司 | Coupling device and coupled system |
| CN110893594A (en) * | 2019-10-12 | 2020-03-20 | 天津大学 | Fan impeller mounting and butt joint method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539858Y (en) * | 2002-04-17 | 2003-03-12 | 江苏大学 | Automatic coupler |
| CN101210570A (en) * | 2006-12-25 | 2008-07-02 | 上海东方泵业(集团)有限公司 | Sealing coupling structure for high-lift submersible pump |
| KR100952664B1 (en) * | 2009-12-04 | 2010-04-13 | (주)대진정공 | Automatic discharge connector for underwater pump |
| CN202955020U (en) * | 2012-12-20 | 2013-05-29 | 湖南凯利特泵业有限公司 | Coupling and sealing device for submersible pump |
| CN203285749U (en) * | 2013-04-28 | 2013-11-13 | 安徽三联泵业股份有限公司 | Coupling device for submersible sewage pump |
| CN106015023A (en) * | 2016-07-04 | 2016-10-12 | 玉林市璟晗新能源汽车有限责任公司 | Single-shaft electro-hydraulic steering pump |
| CN106499819A (en) * | 2016-11-30 | 2017-03-15 | 清华大学 | A kind of many lip damping oil sealings with air bag |
| CN208204009U (en) * | 2018-03-19 | 2018-12-07 | 东莞市瑞拓五金橡塑有限公司 | A kind of dual-seal circle of high leakproofness |
-
2018
- 2018-12-17 CN CN201811540557.9A patent/CN109667785B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539858Y (en) * | 2002-04-17 | 2003-03-12 | 江苏大学 | Automatic coupler |
| CN101210570A (en) * | 2006-12-25 | 2008-07-02 | 上海东方泵业(集团)有限公司 | Sealing coupling structure for high-lift submersible pump |
| KR100952664B1 (en) * | 2009-12-04 | 2010-04-13 | (주)대진정공 | Automatic discharge connector for underwater pump |
| CN202955020U (en) * | 2012-12-20 | 2013-05-29 | 湖南凯利特泵业有限公司 | Coupling and sealing device for submersible pump |
| CN203285749U (en) * | 2013-04-28 | 2013-11-13 | 安徽三联泵业股份有限公司 | Coupling device for submersible sewage pump |
| CN106015023A (en) * | 2016-07-04 | 2016-10-12 | 玉林市璟晗新能源汽车有限责任公司 | Single-shaft electro-hydraulic steering pump |
| CN106499819A (en) * | 2016-11-30 | 2017-03-15 | 清华大学 | A kind of many lip damping oil sealings with air bag |
| CN208204009U (en) * | 2018-03-19 | 2018-12-07 | 东莞市瑞拓五金橡塑有限公司 | A kind of dual-seal circle of high leakproofness |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109667785A (en) | 2019-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111692064A (en) | Long-life plunger pump hydraulic end | |
| CN109667785B (en) | Sealing structure of automatic coupling device | |
| CN212928164U (en) | Valve body rubber and valve assembly and fracturing pump comprising same | |
| CN201801346U (en) | Novel hydraulic jack | |
| CN207648137U (en) | Water wheels machine overhauling sealing device | |
| CN213711286U (en) | Sealing structure for diaphragm pump | |
| CN212479482U (en) | Long-life plunger pump hydraulic end | |
| CN106378376A (en) | Multistage sealing device for internal high-pressure molding | |
| CN208793620U (en) | A kind of orientable wedge-type seal item | |
| CN201381981Y (en) | Piston ring of oil-free air compressor and oil-free air compressor | |
| CN203641152U (en) | Anti-corrosion cylinder with safety pins | |
| CN210769233U (en) | Diaphragm pump head leak-stopping structure | |
| CN2887406Y (en) | Endurable composite type diaphragm filter plate | |
| CN206169021U (en) | Multistage sealing device of internal high -pressure forming | |
| CN221196073U (en) | High-reliability special-shaped sealing ring | |
| CN105822528B (en) | diaphragm pump and water purifier | |
| CN216842841U (en) | Novel nitrogen spring of high leakproofness | |
| CN213711404U (en) | Cable joint for submersible pump | |
| CN203081842U (en) | Sealing device of liner of slurry pump with two pump cases | |
| CN211053579U (en) | Automatic pressing mechanism | |
| CN218266254U (en) | Diaphragm and plunger integrated structure pressure-multiplying pump | |
| CN212221756U (en) | Neodymium iron boron receiving device | |
| CN221647143U (en) | Ultrahigh-pressure plunger pump device | |
| CN219655268U (en) | Sealing ring with high sealing performance | |
| CN204135978U (en) | Plunger displacement pump packing compresses skeleton |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |