Anti-backflow gear oil pump
By installing components such as a sealing circular plate, a protective telescopic bellows and a protective barrel in the oil outlet pipe of the gear oil pump, the backflow problem of the gear oil pump is solved, one-way flow of oil is achieved, gear wear is prevented, service life is extended and the replacement process is simplified.
Patent Information
- Application Number
- CN202423049615.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing gear oil pumps lack anti-backflow function, resulting in the installation position height affecting the oil flow direction, reducing work efficiency and causing gear wear, shortening service life.
A gear oil pump with backflow prevention is designed. By setting a sealing circular plate, a protective telescopic bellows and a protective barrel in the oil outlet pipe, and utilizing the cooperation of a compression spring and a limit clamp plate, the one-way flow of oil is achieved to prevent backflow. The stability and wear resistance of the component are improved by using a rubber ring plate and bearings.
It effectively prevents oil backflow, protects gears from idling, extends service life, improves work efficiency, simplifies the replacement process of the sealing disc, and improves the service life of the components and the convenience of operation.
Smart Images
Figure CN223359400U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil pumps, in particular to an anti-backflow gear oil pump. Background Art
[0002] In large-scale industrial production, especially in industrial production involving large-scale oil transportation such as oil injection, oil purification, and oil filtration, gear oil pumps are commonly used and necessary equipment. They are suitable for various industrial and mining enterprises such as fertilizer plants, refineries, capacitor plants, paint plants, and grain departments to transport turbine oil, transformer oil, aviation oil, and other liquid oils.
[0003] However, the existing gear oil pump lacks anti-backflow function. When people use it, the height of the installation position often affects the flow direction of the oil, reducing the working efficiency of the gear oil pump, causing the gears of the gear oil pump to idle, resulting in gear wear and seriously affecting the service life.
[0004] Therefore, it is necessary to provide a new anti-backflow gear oil pump to solve the above technical problems. Utility Model Content
[0005] The technical problem solved by the utility model is to provide a gear oil pump which is easy to use, simple to operate, and can prevent the backflow phenomenon from occurring and shortening the service life.
[0006] In order to solve the above technical problems, the gear oil pump with anti-backflow provided by the utility model includes: an oil outlet pipe fixedly installed at the oil outlet of the main body, a first annular plate and a second annular plate fixedly installed in the oil outlet pipe, an annular limiting groove is provided on the inner wall of the first annular plate, a circular plate is provided in the oil outlet pipe, a sliding rod is slidably installed on the circular plate, and a sealing circular plate is fixedly installed on one end of the sliding rod, a protective barrel is fixedly installed on the outer wall of one side of the circular plate, a fixing rod is fixedly installed in the protective barrel, two trapezoidal push plates are slidably installed on the fixing rod, and the other end of the sliding rod is fixed A triangular plate is installed, and the triangular plate is in contact with the two trapezoidal push plates. Two circular boxes are fixedly installed on the outer wall of the protective barrel. Rotating rods are respectively rotatably installed in the two circular boxes, and one end of the two rotating rods extends to the outside of the circular box. The two rotating rods are located at one end outside the corresponding circular box and fixedly installed with limiting clamps, and one end of the two limiting clamps extends into the annular limiting groove. Rubber ring plates are respectively provided on the sliding sealing sleeves of the two fixed rods, and the two rubber ring plates are respectively fixedly connected to the corresponding circular boxes.
[0007] Preferably, the movable sleeve on the fixed rod is provided with two compression springs, and one end of the two compression springs is fixedly connected to the corresponding trapezoidal push plates respectively, and the other ends of the two compression springs are fixedly connected to the protective barrel.
[0008] Preferably, a rotation groove is respectively opened on the inner wall of the two circular boxes, one end of the two rotation rods extends into the two rotation grooves respectively and is fixedly sleeved with bearings respectively, and the outer rings of the two bearings are respectively fixedly connected to the inner walls of the two rotation grooves.
[0009] Preferably, both of the compression springs are tinned springs.
[0010] Preferably, the two trapezoidal push plates are respectively provided with through holes, and linear bearings are respectively fixedly installed in the two through holes. The fixing rod passes through the two linear bearings and is respectively slidably connected to the inner walls of the two linear bearings.
[0011] Preferably, a protective telescopic bellows is provided on the movable sleeve of the sliding rod, and one end of the protective telescopic bellows is fixedly connected to the sealing circular plate, and the other end of the protective telescopic bellows is fixedly connected to the circular plate.
[0012] Compared with the related art, the anti-backflow gear oil pump provided by the utility model has the following beneficial effects:
[0013] The utility model provides a gear oil pump with anti-backflow, which fixes the external oil delivery pipe on the oil inlet and the oil outlet pipe of the main body respectively, starts the main body, causes the oil inlet to push the sealing circular plate to move leftward and separate from the second annular plate to open the oil outlet pipe, and the oil enters the oil outlet pipe, and finally delivers the oil to the required area through the oil delivery pipe. When the main body stops working, the oil outlet pipe will no longer enter the oil outlet pipe, and the sealing circular plate will no longer be subjected to the leftward oil thrust, and the compression spring pushes the sealing circular plate to return to its original position to contact the second annular plate to block the oil outlet pipe, thereby preventing the occurrence of The phenomenon that the oil in the oil outlet pipe flows back into the main body causes the gears in the main body to run idle, resulting in gear wear that seriously affects the service life. A sealed space is formed by the sealing circular plate, protective telescopic bellows, circular plate and protective barrel to protect the compression spring to prevent the oil from directly contacting the compression spring and affecting the service life of the compression spring. People rotate the two limit cards to withdraw the two limit cards from the annular limit groove, and then move the protective barrel to the left to take out the sealing circular plate from the oil outlet pipe and replace it. The process is simple, fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A schematic structural diagram of a preferred embodiment of the anti-backflow gear oil pump provided by the present invention;
[0015] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;
[0016] Figure 3for Figure 1 Assembly drawing of the circular plate slide bar shown;
[0017] Figure 4 This is a three-dimensional diagram of the anti-backflow gear oil pump provided by the utility model.
[0018] Numbers in the figure: 1. Main body; 2. Oil outlet pipe; 3. First annular plate; 4. Second annular plate; 5. Sealing circular plate; 6. Sliding rod; 7. Circular plate; 8. Rotating rod; 9. Trapezoidal push plate; 10. Limiting card plate; 11. Protective telescopic bellows; 12. Compression spring; 13. Protective barrel; 14. Fixing rod; 15. Annular limiting groove; 16. Circular box; 17. Rubber annular plate; 18. Triangular plate. DETAILED DESCRIPTION
[0019] The present invention will be further described below with reference to the accompanying drawings and implementation examples.
[0020] Please refer to Figures 1-4 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of the anti-backflow gear oil pump provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 1 Assembly drawing of the circular plate slide rod shown; Figure 4A three-dimensional diagram of the anti-backflow gear oil pump provided by the utility model. The anti-backflow gear oil pump includes: an oil outlet pipe 2 fixedly installed at the oil outlet of the main body 1, a first annular plate 3 and a second annular plate 4 fixedly installed in the oil outlet pipe 2, the first annular plate 3 and the second annular plate 4 are both fixedly installed in the oil outlet pipe 2 by welding, an annular limit groove 15 is provided on the inner wall of the first annular plate 3, a circular plate 7 is provided in the oil outlet pipe 2, a sliding rod 6 is slidably installed on the circular plate 7, and a sealing circular plate 5 is fixedly installed at one end of the sliding rod 6. When the main body 1 stops working, the oil outlet pipe 2 will no longer enter the continuous flow of oil, and the sealing circular plate 5 will no longer be subjected to the leftward oil thrust, and the compression spring 12 will also be compressed. Returning to the original state, the compression spring 12 pushes the sealing circular plate 5 to return to its original position and contact with the second annular plate 4, thereby blocking the oil outlet pipe 2 to prevent the oil in the oil outlet pipe 2 from flowing back into the main body 1, causing the gears in the main body 1 to idle, resulting in gear wear that seriously affects the service life. A protective barrel 13 is fixedly installed on the outer wall of one side of the circular plate 7, and a fixing rod 14 is fixedly installed in the protective barrel 13. Two trapezoidal push plates 9 are slidably installed on the fixing rod 14. In order to reduce the friction between the fixing rod 14 and the trapezoidal push plate 9, thereby reducing the wear of the fixing rod 14 and improving the use of the fixing rod 14 Life, two trapezoidal push plates 9 are respectively provided with through holes, and linear bearings are respectively fixedly installed in the two through holes. The fixed rod 14 passes through the two linear bearings and is respectively slidably connected with the inner walls of the two linear bearings. The other end of the sliding rod 6 is fixedly installed with a triangular plate 18, and the triangular plate 18 is in contact with the two trapezoidal push plates 9. Two circular boxes 16 are fixedly installed on the outer wall of the protective barrel 13, and the rotating rods 8 are respectively rotatably installed in the two circular boxes 16. In order to rotatably install the rotating rod 8 in the circular box 16, the inner walls of the two circular boxes 16 are respectively provided with rotating grooves, and one end of the two rotating rods 8 extends Extending into the two rotating grooves and fixedly sleeved with bearings respectively, the outer rings of the two bearings are respectively fixedly connected to the inner walls of the two rotating grooves, so that the rotating rod 8 rotates more stably in the circular box 16 through the bearings, and one end of the two rotating rods 8 extends outside the circular box 16, and the two rotating rods 8 are located at one end outside the corresponding circular box 16. A limiting clamping plate 10 is fixedly installed on each end, and one end of the two limiting clamping plates 10 extends into the annular limiting groove 15, and a rubber ring plate 17 is provided on the two fixed rods 14 for sliding sealing sleeves, and the two rubber ring plates 17 are respectively fixedly connected to the corresponding circular box 16.
[0021] In order to ensure that the sealing circular plate 5 is always in close contact with the second annular plate 4 without being affected by other external forces, and thus block the oil outlet pipe 2, two compression springs 12 are movably sleeved on the fixed rod 14. In order to improve the service life of the compression springs 12, the two compression springs 12 are tin-plated springs, and one end of the two compression springs 12 is fixedly connected to the corresponding trapezoidal push plates 9, and the other ends of the two compression springs 12 are fixedly connected to the protective barrel 13.
[0022] In order to protect the compression spring 12 and prevent oil from directly contacting the compression spring 12 and affecting the service life of the compression spring 12, a protective telescopic bellows 11 is provided on the movable sleeve of the sliding rod 6, and one end of the protective telescopic bellows 11 is fixedly connected to the sealing circular plate 5, and the other end of the protective telescopic bellows 11 is fixedly connected to the circular plate 7. The sealing circular plate 5, the protective telescopic bellows 11, the circular plate 7 and the protective barrel 13 form a sealed space to protect the compression spring 12.
[0023] The oil pump of the present invention can be operated in the following manner: when the oil pump is in the working state, the compression spring 12 is in the compressed state, and the compression spring 12 squeezes the trapezoidal push plate 9, so that the trapezoidal push plate 9 always squeezes the triangular plate 18, thereby making the sealing circular plate 5 closely contact with the second annular plate 4 and blocking the oil outlet pipe 2. When people need to use this device, the external oil pipeline is fixedly installed on the oil inlet of the body 1 and the oil outlet pipe 2 respectively, and the body 1 is started to allow oil to enter the body 1. The oil pushes the sealing circular plate 5 to move to the left and separates from the second annular plate 4, thereby opening the oil outlet pipe 2, and the oil enters the oil outlet pipe 2. At the same time, the sealing circular plate 5 moves to the left, driving the sliding rod 6 to move to the left, and the sliding rod 6 moves to drive the triangular plate 18 to move. The triangular plate 18 moves to make the two trapezoidal push plates 9 move away from each other, thereby making the compression spring 12 more severely compressed, and finally the oil is transported to the required area through the oil pipeline. When the body 1 stops working, the oil outlet pipe When the oil in the oil outlet pipe 2 is in the oil-tight position, the oil in the oil outlet pipe 2 is prevented from flowing back into the main body 1, causing the gears in the main body 1 to rotate idly, resulting in gear wear that seriously affects the service life. The sealing circular plate 5, the protective telescopic bellows 11, the circular plate 7 and the protective barrel 13 form a sealed space to protect the compression spring 12, preventing the oil from directly contacting the compression spring 12 and affecting the service life of the compression spring 12. When the sealing circular plate 5 is damaged and needs to be replaced, people rotate the two limit cards 10 90 degrees to make the two limit cards 10 withdraw from the annular limit groove 15, and then move the protective barrel 13 to the left to remove the sealing circular plate 5 from the oil outlet pipe 2 and replace the sealing circular plate 5. The process is simple, fast and efficient.
[0024] Compared with the related art, the anti-backflow gear oil pump provided by the utility model has the following beneficial effects:
[0025] The utility model provides a gear oil pump with anti-backflow, which fixes the external oil pipes on the oil inlet of the body 1 and the oil outlet pipe 2 respectively, starts the body 1, and makes the oil inlet push the sealing circular plate 5 to move to the left and separate from the second annular plate 4 to open the oil outlet pipe 2, so that the oil enters the oil outlet pipe 2, and finally the oil is transported to the required area through the oil pipe. When the body 1 stops working, the oil outlet pipe 2 will no longer enter the oil outlet pipe 2, and the sealing circular plate 5 will no longer be subjected to the leftward oil thrust. The compression spring 12 pushes the sealing circular plate 5 to return to its original position and contact with the second annular plate 4 to block the oil outlet pipe 2, so as to prevent the oil outlet pipe 2 from being blocked. The phenomenon of oil flowing back into the main body 1 causes the gears in the main body 1 to idle, resulting in gear wear that seriously affects the service life. The sealing circular plate 5, the protective telescopic bellows 11, the circular plate 7 and the protective barrel 13 form a sealed space to protect the compression spring 12, preventing the oil from directly contacting the compression spring 12 and affecting the service life of the compression spring 12. People rotate the two limit cards 10 90° to make the two limit cards 10 withdraw from the annular limit groove 15, and then move the protective barrel 13 to the left to take out the sealing circular plate 5 from the oil outlet pipe 2 and replace the sealing circular plate 5. The process is simple, fast and efficient.
[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A gear oil pump with backflow prevention, comprising an oil outlet pipe fixedly mounted at the oil outlet of the main body, characterized in that: The cam is fixedly mounted on the oil outlet pipe, and an annular limit groove is provided on the inner wall of the first annular plate. The oil outlet pipe is provided with a circular plate, and a sliding rod is slidably mounted on the circular plate, and one end of the sliding rod is fixedly mounted on a sealing circular plate on one side outer wall of the circular plate. A protective barrel is fixedly mounted on the protective barrel. A fixing rod is fixedly mounted on the fixing rod, and two trapezoidal push plates are slidably mounted on the fixing rod, and the other end of the sliding rod is fixedly mounted on a triangular plate, and the triangular plate contacts the two trapezoidal push plates. Two circular boxes are fixedly mounted on the outer wall of the protective barrel, and rotating rods are respectively rotatably mounted in the two circular boxes, and one end of the two rotating rods extends outside the circular box. The ends of the two rotating rods located outside the corresponding circular boxes are respectively fixedly mounted with limiting clamps, and one end of the two limiting clamps extends into the annular limit groove. Rubber ring plates are respectively provided on the two fixing rods for sliding sealing sleeves, and the two rubber ring plates are respectively fixedly connected to the corresponding circular boxes.
2. The anti-backflow gear oil pump according to claim 1, characterized in that: The movable sleeve on the fixed rod is provided with two compression springs, and one end of the two compression springs is fixedly connected to the corresponding trapezoidal push plates respectively, and the other ends of the two compression springs are fixedly connected to the protective barrel.
3. The anti-backflow gear oil pump according to claim 2, characterized in that: Rotation grooves are respectively opened on the inner walls of the two circular boxes, one end of the two rotation rods extends into the two rotation grooves and is respectively fixed with bearings, and the outer rings of the two bearings are respectively fixedly connected to the inner walls of the two rotation grooves.
4. The anti-backflow gear oil pump according to claim 3, characterized in that: The two compression springs are both tinned springs.
5. The anti-backflow gear oil pump according to claim 4, characterized in that: A through hole is respectively opened on the two trapezoidal push plates, and a linear bearing is fixedly installed in the two through holes. The fixing rod passes through the two linear bearings and is slidably connected to the inner walls of the two linear bearings.
6. The anti-backflow gear oil pump according to claim 5, characterized in that: The movable sleeve on the sliding rod is provided with a protective telescopic bellows, and one end of the protective telescopic bellows is fixedly connected to the sealing circular plate, and the other end of the protective telescopic bellows is fixedly connected to the circular plate.