Oil pump motor connecting flange
By introducing structures such as flanges, fixing grooves, fixing rings, waterproof gaskets, and elastic clamps into the oil pump motor connection flange, the problem of oil leakage is solved, enabling rapid installation and multiple seals, thus improving sealing performance and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南京力源汽车零部件有限公司
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-17
AI Technical Summary
The existing oil pump motor connection flange is prone to oil leakage from the gaps after long-term use, resulting in reduced sealing and reliability.
The design incorporates flanges, fixing grooves, fixing rings, waterproof gaskets, waterproof grooves, and elastic clamps. Through the cooperation of the waterproof gaskets and elastic clamps, it achieves rapid installation and multiple seals, thereby improving sealing performance and reliability.
It enables rapid installation and multiple sealing of the oil pump motor connection flange, effectively preventing oil leakage and improving the safety and reliability of the seal.
Smart Images

Figure CN224138816U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of connecting flanges, and in particular to a connecting flange for an oil pump motor. Background Technology
[0002] The oil pump motor includes a motor body, a front cover, and an output drive shaft. A stepped hole is formed in the front cover, and the output drive shaft, which is retracted into the front cover, is a hollow shaft. The diameter of the shaft hole matches the outer diameter of the oil pump's input drive shaft. A keyway is located at the end of the output drive shaft. Oil pumps are divided into high-pressure and low-pressure types: the high-pressure plunger oil pump uses a camshaft within the pump to drive the plunger to reciprocate up and down within a plunger sleeve, generating high-pressure oil to supply the injectors. During use, the oil pump motor requires a connecting flange to connect its inlet and outlet ports to the external oil delivery pipeline.
[0003] A search revealed Chinese Patent Publication No. CN218325855U, which discloses an oil pump motor connecting flange, comprising a disc body, a groove, a loosening retaining plate, and a sealing gasket. The advantages are as follows: This invention, by adding a groove, sealing gasket, anti-loosening retaining plate, lever, and short shaft to the disc body of the connecting flange, allows for the storage and support of the external connecting flange through the groove, eliminating the cumbersome manual handling required when connecting the external connecting flange and facilitating convenient rotation and adjustment. It also increases the sealing area of the connecting flange during connection, thereby significantly improving the connection efficiency and sealing performance. Furthermore, the anti-loosening retaining plate further enhances the reliable axial positioning of the external connecting flange after connection, effectively preventing axial loosening at the connection point and greatly improving the reliability of the flange connection.
[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: The above-mentioned solution uses an anti-loosening clamp to further increase the axial reliability of the external connecting flange after connection, which can effectively prevent axial loosening of the connected part of the external connecting flange after connection and greatly improve the reliability of the connecting flange connection. However, this device cannot improve the safety and reliability of the connecting flange seal. During the connection process using the connecting flange, long-term use can easily cause oil to flow out from the gap at the connection between the two flanges, resulting in a reduction in the safety and reliability of the seal and easy oil loss. Utility Model Content
[0005] In order to improve the safety and reliability of the sealing of the connecting flange, this application provides an oil pump motor connecting flange.
[0006] This application provides an oil pump motor connection flange, which adopts the following technical solution: it includes two flanges, each flange having a fixing groove on its outer surface, and two fixing rings between the two flanges. A first waterproof gasket is fixedly connected to one side of each fixing ring that is close to the other, and the outer surface of each first waterproof gasket engages with the corresponding fixing groove. A waterproof groove is provided on one side of each flange that is close to the other, and a second waterproof gasket is provided on one side of each flange that is close to the other, with the outer surface of each second waterproof gasket engaging with the corresponding waterproof groove.
[0007] Optionally, each of the fixing rings has a second slot on its outer surface, and one of the fixing rings has two first bolts on its outer side, with the outer surface of each first bolt being inserted into the corresponding second slot.
[0008] Optionally, each of the flanges has a first slot on its outer surface, and a second bolt is inserted into the inner wall of each first slot.
[0009] Optionally, several placement slots are provided on the opposite sides of the two flanges, and the inner wall of each placement slot is engaged with the corresponding second bolt.
[0010] Optionally, a plurality of elastic clamping plates are fixedly connected to the inner wall of one of the flanges, and the outer surface of each elastic clamping plate is slidably connected to another flange.
[0011] Optionally, a connecting post is fixedly connected to the outer surface of each of the elastic plates, and a push plate is fixedly connected to the outer surface of each of the connecting posts.
[0012] Optionally, a limiting plate is fixedly connected to the inner wall of another flange, and the outer surface of each limiting plate is engaged with a corresponding elastic clamping plate.
[0013] In summary, this application includes the following beneficial technical effects:
[0014] 1. This utility model, by setting up components such as flanges, fixing grooves, fixing rings, a first waterproof gasket, a waterproof groove, and a second waterproof gasket, achieves the effect of improving the sealing safety and reliability of the connecting flanges through the rapid installation of the first and second waterproof gaskets by fastening the first and second waterproof gaskets together in one of the waterproof grooves, and then quickly fixing the two flanges with the two fixing rings. During this process, the first waterproof gasket on the fixing ring will be engaged in the fixing groove on the two flanges.
[0015] 2. This utility model, by setting up components such as flanges, elastic clamping plates, push plates, and limiting plates, enables the rapid installation of two flanges. During this process, the elastic clamping plate needs to be slid horizontally along the corresponding limiting plate until it has completely passed the limiting plate. At this point, the elastic clamping plate will reset under its rebound force, thereby increasing the stability between the two flanges. By pushing the push plate, the elastic clamping plate can be separated from the corresponding limiting plate, thus achieving the effect of increasing the stability of the flange connection through the setting of the elastic clamping plate and the limiting plate. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0017] Figure 2 This is a schematic diagram of the fixed ring structure in an embodiment of this application;
[0018] Figure 3 This is a schematic diagram of the second waterproof pad structure in the embodiments of this application;
[0019] Figure 4 This is a schematic diagram of the elastic card plate structure in an embodiment of this application.
[0020] Reference numerals: 1. Flange; 2. Connecting column; 3. Push plate; 4. First slot; 5. Second bolt; 6. Fixing groove; 7. Fixing ring; 8. First waterproof gasket; 9. First bolt; 10. Limiting plate; 11. Waterproof groove; 12. Second waterproof gasket; 13. Elastic retaining plate; 14. Second slot; 15. Placement groove. Detailed Implementation
[0021] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.
[0022] This application discloses an oil pump motor connection flange. For example... Figure 1 , Figure 2 As shown, the device includes two flanges 1, each with a fixing groove 6 on its outer surface. Two fixing rings 7 are located between the two flanges 1, and each fixing ring 7 has a second slot 14 on its outer surface. Two first bolts 9 are located on the outer side of one of the fixing rings 7, and the outer surface of each first bolt 9 is inserted into the corresponding second slot 14. The fixing grooves 6 are located on the outer side of the flanges 1. By quickly installing the two flanges 1, taking the two fixing rings 7, and connecting them to the two flanges 1, and finally inserting the first bolts 9 into the corresponding second slots 14, the two fixing rings 7 can be quickly installed at the connection between the two flanges 1 using the first bolts 9.
[0023] In a preferred embodiment, each flange 1 has a first slot 4 on its outer surface, and a second bolt 5 is inserted into the inner wall of each first slot 4. Several placement grooves 15 are provided on the sides of the two flanges 1 that are far apart from each other. The inner wall of each placement groove 15 is engaged with the corresponding second bolt 5. After the two flanges 1 are connected, the first slots 4 on the two flanges 1 will be on the same central axis. Then, the second bolt 5 is used and inserted into the corresponding first slot 4 until the second bolt 5 is engaged in the corresponding placement groove 15. In this way, the second bolt 5 can be hidden inside the corresponding flange 1, thereby protecting the second bolt 5.
[0024] In this embodiment, a first waterproof pad 8 is fixedly connected to one side of each of the two fixing rings 7 that are close to each other. The outer surface of each first waterproof pad 8 is engaged with the corresponding fixing groove 6. The first waterproof pad 8 is inserted into the corresponding fixing groove 6 during the installation of the fixing ring 7, thereby effectively preventing oil leakage.
[0025] Please see Figure 3 , Figure 4 Each of the two flanges 1 has a waterproof groove 11 on one side close to each other, and a second waterproof gasket 12 is provided on the same side. The outer surface of each second waterproof gasket 12 is engaged with the corresponding waterproof groove 11. By engaging the second waterproof gasket 12 in one of the waterproof grooves 11, when the two flanges 1 are joined, the second waterproof gasket 12 will engage in the other waterproof groove 11. Thus, the arrangement of the first waterproof gasket 8 and the second waterproof gasket 12 allows multiple seals to work together to form a more reliable sealing system, effectively preventing oil leakage and improving the safety and reliability of the seal.
[0026] In this embodiment, a plurality of elastic clamping plates 13 are fixedly connected to the inner wall of one of the flanges 1. A connecting post 2 is fixedly connected to the outer surface of each elastic clamping plate 13, and a push plate 3 is fixedly connected to the outer surface of each connecting post 2. During the docking of the two flanges 1, the elastic clamping plate 13 will be inserted into the other flange 1. By pushing the push plate 3, the push plate 3 will drive the corresponding flange 1 to rotate. At this time, the elastic clamping plate 13 will rotate along the inner wall of the other flange 1.
[0027] Looking back Figure 4Each elastic plate 13 has its outer surface slidably connected to another flange 1. The inner wall of the other flange 1 is fixedly connected to a limiting plate 10. The outer surface of each limiting plate 10 is engaged with the corresponding elastic plate 13. Specifically, during the docking and installation of the flange 1, the elastic plate 13 will slide in along the corresponding limiting plate 10. During this process, the elastic plate 13 will be compressed until it is engaged with the corresponding limiting plate 10 under its own rebound force.
[0028] The implementation principle of an oil pump motor connection flange according to an embodiment of this application is as follows: First, two flanges 1 are joined together. During this process, a second waterproof gasket 12 is snapped into one of the waterproof grooves 11. When the two flanges 1 are joined together, the second waterproof gasket 12 will snap into the other waterproof groove 11. At this time, the elastic retaining plate 13 will slide in along the corresponding limiting plate 10 until the elastic retaining plate 13 is snapped into the corresponding limiting plate 10. This can initially and quickly fix the two flanges 1. Then, two fixing rings 7 are taken and the first waterproof gasket 8 is snapped into the corresponding fixing rings 7. The first bolt 9 is inserted into the corresponding second slot 14 and the two fixing rings 7 are quickly fixed. Then, the second bolt 5 is inserted into the corresponding first slot 4 until the second bolt 5 is engaged in the corresponding placement slot 15. This allows the two flanges 1 to be quickly fixed. When the flanges 1 need to be disassembled, the first bolt 9 and the second bolt 5 need to be removed. Then, the push plate 3 is rotated to push the corresponding connecting column 2 to rotate. At this time, the elastic clamping plate 13 will leave the corresponding limiting plate 10, thus allowing the two flanges 1 to be quickly disassembled.
[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An oil pump motor connection flange comprising two flange plates (1), characterized in that: The outer surfaces of both flanges (1) are provided with fixing grooves (6), and two fixing rings (7) are provided between the two flanges (1). A first waterproof gasket (8) is fixedly connected to the side of the two fixing rings (7) that are close to each other. The outer surface of each first waterproof gasket (8) is engaged with the corresponding fixing groove (6). A waterproof groove (11) is provided on the side of the two flanges (1) that are close to each other. A second waterproof gasket (12) is provided on the side of the two flanges (1) that are close to each other. The outer surface of each second waterproof gasket (12) is engaged with the corresponding waterproof groove (11).
2. An oil pump motor connecting flange according to claim 1, characterized in that: Each of the fixing rings (7) has a second slot (14) on its outer surface. Two first bolts (9) are provided on the outer side of one of the fixing rings (7). The outer surface of each first bolt (9) is inserted into the corresponding second slot (14).
3. An oil pump motor connecting flange according to claim 1, characterized in that: Each of the flanges (1) has a first slot (4) on its outer surface, and a second bolt (5) is inserted into the inner wall of each first slot (4).
4. An oil pump motor connecting flange according to claim 3, characterized in that: Each of the two flanges (1) has a plurality of placement slots (15) on the side away from each other, and the inner wall of each placement slot (15) is engaged with the corresponding second bolt (5).
5. An oil pump motor connecting flange according to claim 4, characterized in that: One of the flanges (1) has a number of elastic plates (13) fixedly connected to its inner wall, and the outer surface of each elastic plate (13) is slidably connected to another flange (1).
6. An oil pump motor connecting flange according to claim 5, characterized in that: Each of the elastic plates (13) has a connecting post (2) fixedly connected to its outer surface, and each of the connecting posts (2) has a push plate (3) fixedly connected to its outer surface.
7. An oil pump motor connecting flange according to claim 6, characterized in that: Another flange (1) has a limiting plate (10) fixedly connected to its inner wall, and the outer surface of each limiting plate (10) is engaged with a corresponding elastic clamping plate (13).
Citation Information
Patent Citations
Oil pump motor connecting flange
CN218325855U