CN110670548A - A high efficiency leak protection oil seal structure for hydraulic pressure dam - Google Patents
A high efficiency leak protection oil seal structure for hydraulic pressure dam Download PDFInfo
- Publication number
- CN110670548A CN110670548A CN201911065514.4A CN201911065514A CN110670548A CN 110670548 A CN110670548 A CN 110670548A CN 201911065514 A CN201911065514 A CN 201911065514A CN 110670548 A CN110670548 A CN 110670548A
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- Prior art keywords
- hydraulic
- dam
- sealing
- sleeve head
- wall
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/40—Swinging or turning gates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a high-efficiency oil leakage prevention sealing structure for a hydraulic dam, which comprises a sealing sleeve head and a built-in sealing ring, wherein the built-in sealing ring is installed at one end of an inner cavity of a hydraulic cylinder, one end of the outer side of the hydraulic cylinder is provided with an installation groove for installing the sealing sleeve head, the inner wall of the installation groove is provided with a female thread, the outer side of the sealing sleeve head is provided with a male thread matched with the female thread, a penetrating hydraulic rod through hole is arranged inside the sealing sleeve head, the inner wall of the hydraulic rod through hole is in sliding connection with the outer wall of a hydraulic rod, the inner wall of the hydraulic rod through hole is provided with a plurality of annular ring grooves with uniform intervals, a viscose layer is bonded inside the annular ring grooves, an annular air bag is bonded outside the viscose layer, an inflation air nozzle is installed at the top of the sealing. According to the invention, after the hydraulic cylinder pushes the hydraulic rod to support the dam face, the hydraulic rod is inflated to form a multi-extrusion sealing environment, so that the flood control safety is improved.
Description
Technical Field
The invention relates to the technical field of hydraulic dam sealing, in particular to a high-efficiency oil leakage prevention sealing structure for a hydraulic dam.
Background
The hydraulic dam is a hydraulic concrete lifting dam, is a relatively simple movable dam technology of water conservancy and science and technology, and is widely applied to construction of agricultural irrigation, fishery, ship locks, seawater tidal shelters, urban river landscape engineering, small hydropower stations and the like. The hydraulic lifting dam has scientific mechanical structure, no water blocking, no fear of silt deposition, no influence of floaters, easy flushing of the floaters at the upstream under the condition of extremely small water loss, clear river water, quick dam placing, no influence on flood control safety and strong flood impact resistance. The movable dam overcomes the defects of the traditional movable dam and has all the advantages of the traditional dam, namely the movable dam is tightly attached to the riverbed like a rubber dam without blocking water (better than the rubber dam), automatically releases the dam to flood like a flap gate dam, keeps the water level height at will and is as firm and durable as a water gate.
The hydraulic lifting dam is a movable dam which adopts the mechanical principle of dump trucks and combines the hydraulic structure type of a buttress dam, has double functions of water retaining and water draining, is composed of an arc (or straight) dam face, a hydraulic rod, a support rod, a hydraulic cylinder and a hydraulic pump station, and realizes the purposes of dam lifting, water retaining and dam descending for flood drainage by using the back of the movable water retaining dam face with the bottom as an axis by the straight top of the hydraulic cylinder. The back of the movable dam face is supported by the sliding support rods to form a stable supporting pier dam. The small hydraulic cylinder and the limiting clamp are adopted to form the mutual exchange of the fixing and the moving of the supporting pier dam, so that the aims of fixedly blocking water and movably lowering the dam are fulfilled. A manual push rod switch is adopted to control and operate a hydraulic system, and the lifting of the movable dam face is manually operated according to the flood fluctuation.
The existing hydraulic dam is not favorable for flood control safety because the insufficient sealing of the joint of the end part of the hydraulic cylinder and the hydraulic rod leads to oil leakage after the hydraulic cylinder pushes the hydraulic rod to support the dam face, so that the internal oil pressure is insufficient to lead to the failure of supporting the dam face or the weakening risk.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention aims to provide a high-efficiency oil leakage prevention sealing structure for a hydraulic dam, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a high-efficiency oil leakage prevention sealing structure for a hydraulic dam comprises a sealing sleeve head and a built-in sealing ring, wherein the built-in sealing ring is installed at one end of an inner cavity of a hydraulic chamber of a hydraulic cylinder, one end of a hydraulic rod is fixedly connected with a pushing piston which is positioned in the hydraulic chamber and is in sliding connection with the inner wall of the hydraulic chamber, the other end of the hydraulic rod is fixedly connected with one side of a dam face, one end of the outer side of the hydraulic cylinder is provided with a mounting groove for installing the sealing sleeve head, the inner wall of the mounting groove is provided with female threads, the outer side of the sealing sleeve head is provided with male threads matched with the female threads, the mounting groove is in threaded connection with the sealing sleeve head, a penetrating hydraulic rod perforation is arranged inside the sealing sleeve head, the inner wall of the hydraulic rod perforation is in sliding connection with the outer wall of the hydraulic rod, the utility model discloses a valve, including annular circle groove, viscose layer, air inflation mouth, air transmission pipeline, valve, air inflation mouth and air transmission pipeline, the viscose layer has been bonded to the inside in annular circle groove, the annular gasbag bonds in the outside of viscose layer, the air inflation mouth is installed at the top of sealed pullover, the air inflation mouth communicates with the inside air transmission pipeline of sealed pullover, air transmission pipeline all communicates with each annular gasbag, the valve is still installed to the air inflation mouth.
Further, the gas pressure gauge is installed to the inflating air cock, the gas pressure gauge is located between sealed pullover and the valve.
Furthermore, the number of the annular ring grooves and the number of the annular air bags are 3-5.
Further, the outside fixed mounting of pneumatic cylinder has miniature air pump, the output of miniature air pump passes through gas supply line and aerifys the air cock intercommunication.
Furthermore, the sealing sleeve head is made of steel materials, and the outer side of the sealing sleeve head and the inner side of the through hole of the hydraulic rod are plated with zinc powder.
Furthermore, the sealing sleeve is sleeved with a dustproof rubber gasket.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the dam supporting device, the multiple annular air bags are arranged in the dam supporting device, the hydraulic cylinder pushes the hydraulic rod to support the dam face, then the dam supporting device is inflated, and a multiple extrusion sealing environment is formed between the hydraulic rod and the multiple annular air bags, so that the risk that the dam face is supported to be invalid or weakened due to insufficient internal oil pressure caused by oil leakage due to insufficient sealing of the connection part of the end part of the hydraulic cylinder and the hydraulic rod after the hydraulic cylinder pushes the hydraulic rod to support the dam face is solved, and the safety of flood control is.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a high-efficiency oil leakage prevention sealing structure for a hydraulic dam according to an embodiment of the present invention;
fig. 2 is an enlarged schematic structural view at a of a high-efficiency oil leakage prevention sealing structure for a hydraulic dam according to an embodiment of the present invention;
FIG. 3 is a schematic view, partially in section, of a sealing sleeve head of a high-efficiency oil leakage prevention sealing structure for a hydraulic dam according to an embodiment of the invention;
fig. 4 is a schematic diagram of a half-section structure of a high-efficiency oil leakage prevention sealing structure for a hydraulic dam according to an embodiment of the present invention.
Reference numerals:
1. sealing the sleeve head; 2. a sealing ring is arranged inside; 3. mounting grooves; 4. an annular ring groove; 5. an annular air bag; 6. an adhesive layer; 7. a gas pipeline; 8. a valve; 9. a gas pressure gauge; 10. a micro air pump; 11. a gas supply duct; 12. pushing the piston; 13. dam facing; 14. a hydraulic lever; 15. a hydraulic cylinder; 16. a hydraulic oil chamber; 17. punching a hydraulic rod; 18. an inflation nozzle; 19. a rubber gasket.
Detailed Description
The invention is further described with reference to the following drawings and detailed description:
referring to fig. 1-4, a high-efficiency oil leakage prevention sealing structure for a hydraulic dam according to an embodiment of the present invention includes a sealing sleeve head 1 and an internal sealing ring 2, the internal sealing ring 2 is installed at one end of an inner cavity of a hydraulic chamber 16 of a hydraulic cylinder 15, one end of a hydraulic rod 14 is fixedly connected to a push piston 12 which is located in the hydraulic chamber 16 and is slidably connected to an inner wall of the hydraulic chamber 16, the other end of the hydraulic rod 14 is fixedly connected to one side of a dam facing 13 to form a support, one end of an outer side of the hydraulic cylinder 15 is provided with an installation groove 3 for installing the sealing sleeve head 1, an inner wall of the installation groove 3 is provided with a female thread, an outer side of the sealing sleeve head 1 is provided with a male thread adapted to the female thread, the installation groove 3 is in threaded connection with the sealing sleeve head 1, the connection is firm, a penetrating hydraulic rod through hole, the inner wall of the hydraulic stem perforation 17 and the outer wall sliding connection of the hydraulic stem 14 make the hydraulic pressure turn over 14 and freely stretch out and draw back, a plurality of even intervals's annular circle groove 4 has been seted up to the inner wall of the hydraulic stem perforation 17, the inside bonding of annular circle groove 4 has viscose layer 6, the outside bonding annular gasbag 5 of viscose layer 6 makes annular gasbag 5 carry out the rigidity, avoids aerifing back deformation skew, inflation air cock 18 is installed at the top of sealed pullover 1, inflation air cock 18 and the inside gas transmission pipeline 7 intercommunication of sealed pullover 1, gas transmission pipeline 7 all communicates with each annular gasbag 5, inflation air cock 18 still installs valve 8 and is convenient for fill the gassing.
Through the scheme of the invention, the inflation nozzle 18 is provided with the gas pressure gauge 9, and the gas pressure gauge 9 is arranged between the sealing sleeve head 1 and the valve 8.
By the scheme of the invention, the number of the annular ring grooves 4 and the number of the annular air bags 5 are 3-5 for multiple sealing protection.
Through the scheme of the invention, the miniature air pump 10 is fixedly installed on the outer side of the hydraulic cylinder 15, and the output end of the miniature air pump 10 is communicated with the inflation air nozzle 18 through the air supply pipeline 11.
According to the scheme of the invention, the sealing sleeve head 1 is made of steel materials, and the outer side of the sealing sleeve head 1 and the inner side of the hydraulic rod through hole 17 are plated with zinc powder to improve the corrosion resistance.
Through the scheme of the invention, the sealing sleeve head 1 is sleeved with the dustproof rubber gasket 19 to prevent dust from entering the threaded connection part and being difficult to disassemble.
When the dam is specifically applied, hydraulic oil in the hydraulic cylinder 15 pushes and presses the piston 12 to enable the hydraulic rod 14 to support the dam face 13, oil supply of the hydraulic chamber 16 is stopped after the hydraulic rod is supported in place, the built-in sealing ring 2 is used for first-step oil leakage prevention protection, the miniature air pump 10 and the valve 8 are started to inflate the annular air bag 5, the gas pressure gauge 9 is observed to be inflated to a proper gas amount, the valve 8 and the miniature air pump 10 are closed, the annular air bag 5 is expanded and is extruded and attached to the hydraulic rod 14 to perform multiple sealing, when the dam needs to be lowered, the valve 8 is opened to deflate the annular air bag 5, oil is discharged from the hydraulic chamber 16 after the deflation is completed, the oil amount is reduced, and the dam can.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a high efficiency leak protection oil seal structure for hydraulic pressure dam, its characterized in that, including sealed pullover (1) and built-in sealing washer (2), the inner chamber one end at hydraulic pressure grease chamber (16) of pneumatic cylinder (15) is installed to built-in sealing washer (2), the one end fixed connection of hydraulic pressure pole (14) is located hydraulic pressure grease chamber (16) and bulldozes piston (12) with hydraulic pressure grease chamber (16) inner wall sliding connection, one side of the other end fixed connection dam facing (13) of hydraulic pressure pole (14), the outside one end of pneumatic cylinder (15) is equipped with mounting groove (3) that are used for installing sealed pullover (1), the inner wall of mounting groove (3) is equipped with the internal thread, the outside of sealed pullover (1) be equipped with the external thread of internal thread adaptation, mounting groove (3) and sealed pullover (1) threaded connection, the inside of sealed pullover (1) is equipped with hydraulic pressure pole perforation (17) that run through, the inner wall of hydraulic stem perforation (17) and the outer wall sliding connection of hydraulic stem (14), a plurality of even intervals's annular circle groove (4) have been seted up to the inner wall of hydraulic stem perforation (17), the inside bonding of annular circle groove (4) has viscose layer (6), annular gasbag (5) bond in the outside of viscose layer (6), aerify air cock (18) are installed at the top of sealed pullover (1), aerify air cock (18) and sealed pullover (1) inside gas transmission pipeline (7) intercommunication, gas transmission pipeline (7) all communicate with each annular gasbag (5), it still installs valve (8) to aerify air cock (18).
2. The high-efficiency oil leakage prevention sealing structure for the hydraulic dam of claim 1, wherein the inflation gas nozzle (18) is provided with a gas pressure gauge (9), and the gas pressure gauge (9) is arranged between the sealing sleeve head (1) and the valve (8).
3. The high-efficiency oil leakage prevention sealing structure for the hydraulic dam of claim 1, wherein the number of the annular ring groove (4) and the number of the annular air bag (5) are 3-5.
4. The high-efficiency oil leakage prevention sealing structure for the hydraulic dam of claim 1, wherein a micro air pump (10) is fixedly installed at the outer side of the hydraulic cylinder (15), and the output end of the micro air pump (10) is communicated with the inflation nozzle (18) through an air supply pipeline (11).
5. The high-efficiency oil leakage prevention sealing structure for the hydraulic dam of claim 1, wherein the sealing sleeve head (1) is made of steel material, and the outer side of the sealing sleeve head (1) and the inner side of the hydraulic rod through hole (17) are plated with zinc powder.
6. The high-efficiency oil leakage prevention sealing structure for the hydraulic dam of claim 1 or 5, wherein the sealing sleeve head (1) is sleeved with a rubber gasket (19) for dust prevention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911065514.4A CN110670548A (en) | 2019-11-04 | 2019-11-04 | A high efficiency leak protection oil seal structure for hydraulic pressure dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911065514.4A CN110670548A (en) | 2019-11-04 | 2019-11-04 | A high efficiency leak protection oil seal structure for hydraulic pressure dam |
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| Publication Number | Publication Date |
|---|---|
| CN110670548A true CN110670548A (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911065514.4A Pending CN110670548A (en) | 2019-11-04 | 2019-11-04 | A high efficiency leak protection oil seal structure for hydraulic pressure dam |
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| CN (1) | CN110670548A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283178A (en) * | 2020-09-28 | 2021-01-29 | 杭州叉车钣焊有限公司 | Large-tonnage forklift fuel tank and processing technology thereof |
| CN113816174A (en) * | 2021-10-08 | 2021-12-21 | 佛山市金银河智能装备股份有限公司 | Sealing structure and sealing method for powder feeding station |
| CN114321365A (en) * | 2021-12-30 | 2022-04-12 | 淮安市力恒液压机械有限公司 | Hydraulic sealing element with good sealing effect and sealing method |
| CN114458656A (en) * | 2022-04-13 | 2022-05-10 | 徐州强宏液压科技有限公司 | Hydraulic oil cylinder with axial support protection |
| CN117906882A (en) * | 2024-03-20 | 2024-04-19 | 烟台焕发新能源有限公司 | Air tightness detection equipment for air cylinders |
| CN117990307A (en) * | 2024-04-03 | 2024-05-07 | 临沂市计量检定所 | Tightness detection equipment of air sampling device |
-
2019
- 2019-11-04 CN CN201911065514.4A patent/CN110670548A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112283178A (en) * | 2020-09-28 | 2021-01-29 | 杭州叉车钣焊有限公司 | Large-tonnage forklift fuel tank and processing technology thereof |
| CN113816174A (en) * | 2021-10-08 | 2021-12-21 | 佛山市金银河智能装备股份有限公司 | Sealing structure and sealing method for powder feeding station |
| CN114321365A (en) * | 2021-12-30 | 2022-04-12 | 淮安市力恒液压机械有限公司 | Hydraulic sealing element with good sealing effect and sealing method |
| CN114321365B (en) * | 2021-12-30 | 2022-09-23 | 淮安市力恒液压机械有限公司 | Hydraulic sealing element with good sealing effect and sealing method |
| CN114458656A (en) * | 2022-04-13 | 2022-05-10 | 徐州强宏液压科技有限公司 | Hydraulic oil cylinder with axial support protection |
| CN114458656B (en) * | 2022-04-13 | 2022-07-12 | 徐州强宏液压科技有限公司 | Hydraulic oil cylinder with axial support protection |
| CN117906882A (en) * | 2024-03-20 | 2024-04-19 | 烟台焕发新能源有限公司 | Air tightness detection equipment for air cylinders |
| CN117906882B (en) * | 2024-03-20 | 2024-05-24 | 烟台焕发新能源有限公司 | Air tightness detection equipment for air cylinders |
| CN117990307A (en) * | 2024-04-03 | 2024-05-07 | 临沂市计量检定所 | Tightness detection equipment of air sampling device |
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