Oil return structure of pressure oil supply pump

Abstract

The utility model discloses an oil return structure of a pressure oil supply pump, which particularly relates to the field of oil pumps and comprises an oil pump body, an oil outlet pipe is fixedly arranged on one side of the oil pump body, a threaded cylinder is fixedly connected to one end of the oil outlet pipe, a threaded seat is in threaded connection to one side of the threaded cylinder, and a one-way valve is fixedly connected to one end of the threaded seat. A hydraulic sensor is fixedly arranged at the upper end of an oil outlet pipe, a flow sensor is fixedly arranged at the bottom of the oil outlet pipe, an oil inlet pipe is fixedly connected to one side of the oil pump body, a limiting groove is formed in the upper end of the oil inlet pipe, and a fixing frame is connected into the limiting groove in a clamped mode. According to the one-way valve, the threaded barrel, the threaded seat and the connecting seat are arranged and used in cooperation, the threaded seat can be rotated by screwing the connecting seat, so that the threaded seat is separated from the threaded barrel, the one-way valve can be disassembled and assembled, replacement of the one-way valve is facilitated, and the one-way valve is more convenient to use and wider in application range.

Description

Technical Field

[0001] The utility model relates to the field of oil pumps, and more specifically, to an oil return structure of a pressure-feed oil pump. Background Art

[0002] The oil return structure of the oil pump usually consists of an oil return port, an oil return pipe and an oil return valve. The oil return port is connected to the oil supply port of the lubricating oil system, and the lubricating oil released by the oil pump is returned to the oil tank through the oil return pipe. The oil return valve can control the return speed of the lubricating oil according to the pressure change to ensure the circulation of the lubricating oil;

[0003] After searching, the existing patent (publication number: CN 212202163 U) discloses an oil pump return structure of an engine, including an oil pump body, a connecting plate fixedly installed at the bottom of the oil pump body, an oil outlet pipe fixedly installed on the right side of the oil pump body, an oil inlet pipe fixedly installed on the left side of the oil pump body, a holder fixedly installed on the top of the oil inlet pipe, a limiting groove opened on the top of the holder, and a slot located inside the holder on both the left and right sides of the limiting groove. The oil pump return structure of the engine can limit the one-way valve body by installing a holder on the oil inlet pipe, opening a limiting groove on the holder, and installing a rectangular block on the limiting groove, and by opening a slot on the holder, opening a telescopic slot on the rectangular block, and installing a telescopic spring on the telescopic slot, and installing a clamp head extending to the inside of the slot on the telescopic spring, so as to fix the rectangular block and the one-way valve body.

[0004] In the existing oil return structure of the pressure supply oil pump, the one-way valve is limited by a clamp, but due to its low limiting efficiency, it is easy to fall off during use, resulting in certain limitations in use. At the same time, the above-cited patent document does not propose a relevant solution to solve the above problems;

[0005] Therefore, in view of the above problems, a pressure supply oil pump oil return structure is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides an oil return structure of a pressure supply oil pump to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure supply oil pump return oil structure, including an oil pump body, an oil outlet pipe is fixedly arranged on one side of the oil pump body, one end of the oil outlet pipe is fixedly connected to a threaded barrel, and one side of the threaded barrel is threadedly connected to a threaded seat, one end of the threaded seat is fixedly connected to a one-way valve, and the outside of the one-way valve is movably connected to a connecting seat.

[0008] Preferably, a hydraulic sensor is fixedly provided at the upper end of the oil outlet pipe, and a flow sensor is fixedly provided at the bottom of the oil outlet pipe.

[0009] Preferably, an oil inlet pipe is fixedly connected to one side of the oil pump body, a limiting groove is provided at the upper end of the oil inlet pipe, and a fixing frame is snap-connected inside the limiting groove.

[0010] Preferably, a filter screen is arranged in the middle of the fixing frame, and a connecting frame is fixedly connected to the upper end of the fixing frame.

[0011] Preferably, a clamping block is fixedly connected to the bottom of the fixing frame, and the clamping block is movably connected to the limiting groove.

[0012] Preferably, a card slot is movably connected to one side of the card block, the card slot is connected to the card block by a snap-fit ​​connection, and the diameter of the card slot is larger than the limiting slot.

[0013] Technical effects and advantages of the utility model:

[0014] Compared with the prior art, the oil return structure of the pressure supply oil pump is provided with a threaded barrel, a threaded seat and a connecting seat, and the three are used in conjunction with each other. The threaded seat can be rotated by twisting the connecting seat, so that it can be separated from the threaded barrel, so that the one-way valve can be disassembled and replaced, making the device more convenient to use and having a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the position structure of the threaded barrel of the utility model.

[0017] Figure 3 This is a schematic diagram of the position structure of the limit groove of the utility model.

[0018] Figure 4 This is a schematic diagram of the position structure of the hydraulic sensor of the utility model.

[0019] The accompanying drawings are marked as follows: 1. oil pump body; 2. oil outlet pipe; 3. oil inlet pipe; 4. hydraulic sensor; 5. flow sensor; 6. threaded barrel; 7. threaded seat; 8. one-way valve; 9. limit groove; 10. fixing frame; 11. connecting frame; 12. filter screen; 13. block; 14. slot. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] As attached Figures 1 to 4 The oil return structure of a pressure oil pump shown in the figure includes an oil pump body 1, an oil outlet pipe 2 is fixedly arranged on one side of the oil pump body 1, one end of the oil outlet pipe 2 is fixedly connected to a threaded barrel 6, and one side of the threaded barrel 6 is threadedly connected to a threaded seat 7, one end of the threaded seat 7 is fixedly connected to a one-way valve 8, and the one-way valve 8 is movably connected to a connecting seat 15 outside.

[0023] Among them: a threaded barrel 6 is fixedly provided at the upper end of the oil outlet pipe 2, and a threaded seat 7 is threadedly connected inside the threaded barrel 6, a one-way valve 8 is fixedly provided at one end of the threaded seat 7, and a connecting seat 15 is provided outside the one-way valve 8, and the one-way valve 8 and the connecting seat 15 are connected in an active manner, so that the threaded seat 7 and the threaded barrel 6 can be disassembled and assembled by twisting the connecting seat 15, so as to facilitate the disassembly and assembly of the one-way valve 8, so as to facilitate the replacement of the one-way valve 8 and other operations, effectively avoiding the problem of corrosion of the one-way valve 8 during long-term practicality affecting its use, making the device more convenient to use and improving the practicality of the device to a certain extent.

[0024] Embodiment 2

[0025] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0026] As a preferred embodiment, a hydraulic sensor 4 is fixedly provided at the upper end of the oil outlet pipe 2, and a flow sensor 5 is fixedly provided at the bottom of the oil outlet pipe 2; further, by providing the hydraulic sensor 4 and the flow sensor 5, the hydraulic sensor 4 can realize real-time monitoring of the internal return oil pressure, while the flow sensor 5 monitors the internal return oil flow in real time, thereby facilitating the discovery of problems and timely handling, thereby enhancing the practicability of the device and further extending the scope of application of the device.

[0027] As a preferred embodiment, an oil inlet pipe 3 is fixedly connected to one side of the oil pump body 1, and a limiting groove 9 is provided at the upper end of the oil inlet pipe 3, and a fixing frame 10 is snap-connected inside the limiting groove 9; further, by providing the limiting groove 9, the limiting groove 9 and the fixing frame 10 are snap-connected and limited, thereby facilitating the limiting of the fixing frame 10 and ensuring its limiting stability, making the device more convenient to use, thereby improving the practicality of the device to a certain extent.

[0028] As a preferred embodiment, a filter screen 12 is provided in the middle of the fixing frame 10, and a connecting frame 11 is fixedly connected to the upper end of the fixing frame 10; further, by providing the filter screen 12, the filter screen 12 is convenient for filtering impurities and the like, thereby improving its purity, and at the same time, it is convenient to remove, clean and replace the filter screen 12, making the device more convenient to use and having a wider range of applications.

[0029] As a preferred embodiment, a card block 13 is fixedly connected to the bottom of the fixing frame 10, and the card block 13 is movably connected to the limiting groove 9; further, by providing a card block 13, the card block 13 is located at the bottom of the fixing frame 10, and the card block 13 extends to one end of the limiting groove 9, so that it is easy to operate it, thereby improving the convenience of use of the device to a certain extent, and the scope of application is wider.

[0030] As a preferred embodiment, a card slot 14 is movably connected to one side of the card block 13, and the card slot 14 is connected to the card block 13 by a snap-fit ​​connection, and the diameter of the card slot 14 is larger than the limiting slot 9; further, by extending the card block 13 to one end of the limiting slot 9 and snap-fitting the card slot 14 with the card block 13, it is convenient to limit the fixing frame 10, thereby improving the placement stability of the fixing frame 10 to a certain extent, and at the same time facilitating the disassembly and assembly operation thereof, making the device more convenient to use and enhancing the practicality of the device.

[0031] The working process of the utility model is as follows:

[0032] When in use, firstly, an oil outlet pipe 2 is provided on one side of the oil pump body 1, and a threaded barrel 6 is fixedly provided on the upper end of the oil outlet pipe 2, and a threaded seat 7 is threadedly connected to the inside of the threaded barrel 6, and a one-way valve 8 is fixedly provided at one end of the threaded seat 7, and a connecting seat 15 is movably provided outside the one-way valve 8, so that the threaded seat 7 and the threaded barrel 6 can be disassembled and assembled by twisting the connecting seat 15, so that it is convenient to replace the one-way valve 8 and effectively avoid the occurrence of corrosion and the like of the one-way valve 8 under long-term use, so that the device is more convenient to use and has a wider range of applications. Secondly, a hydraulic sensor 4 and a flow sensor 5 are fixedly provided on the outside of the oil outlet pipe 2, the hydraulic sensor 4 can realize real-time monitoring of the internal return oil pressure, and the flow sensor 5 can realize real-time monitoring of the internal return oil flow, and transmit it to the external controller, so that it is easy to find problems and deal with them in time, making the device more convenient to use and The practicability of the device is improved to a certain extent. Secondly, an oil inlet pipe 3 is fixedly provided at the other end of the oil pump body 1, a limiting groove 9 is provided at the upper end of the oil inlet pipe 3, a fixing frame 10 is snap-connected inside the limiting groove 9, and a filter screen 12 is provided inside the fixing frame 10, so as to facilitate filtering of impurities, making the device more convenient to use. A connecting frame 11 is fixedly provided at the upper end of the fixing frame 10, so that the filter screen 12 can be taken out for cleaning and other operations by moving the connecting frame 11, so that the device has a wider range of applications. In addition, a clamping block 13 is fixedly provided at the bottom of the fixing frame 10, when the fixing frame 10 is placed in the limiting groove 9, the clamping block 13 extends to one end outside the oil inlet pipe 3, and the clamping block 13 is snap-connected with the clamping groove 14, so as to limit the fixing frame 10 to avoid displacement and the like, making the device more convenient to use and having a wider range of applications.

[0033] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A pressure supply oil pump oil return structure, comprising an oil pump body (1), characterized in that: An oil outlet pipe (2) is fixedly provided on one side of the oil pump body (1); one end of the oil outlet pipe (2) is fixedly connected to a threaded barrel (6); one side of the threaded barrel (6) is threadedly connected to a threaded seat (7); one end of the threaded seat (7) is fixedly connected to a one-way valve (8); and the outside of the one-way valve (8) is movably connected to a connecting seat (15).

2. The oil return structure of a pressure oil supply pump according to claim 1, characterized in that: A hydraulic sensor (4) is fixedly arranged at the upper end of the oil outlet pipe (2), and a flow sensor (5) is fixedly arranged at the bottom of the oil outlet pipe (2).

3. The oil return structure of the oil pressure supply pump according to claim 1, characterized in that: An oil inlet pipe (3) is fixedly connected to one side of the oil pump body (1), a limiting groove (9) is provided at the upper end of the oil inlet pipe (3), and a fixing frame (10) is snap-connected inside the limiting groove (9).

4. The oil return structure of the oil pressure supply pump according to claim 3, characterized in that: A filter screen (12) is arranged in the middle of the fixing frame (10), and a connecting frame (11) is fixedly connected to the upper end of the fixing frame (10).

5. The oil return structure of the oil pressure supply pump according to claim 4, characterized in that: A clamping block (13) is fixedly connected to the bottom of the fixing frame (10), and the clamping block (13) is movably connected to the limiting groove (9).

6. The oil return structure of the oil pressure supply pump according to claim 5, characterized in that: A card slot (14) is movably connected to one side of the card block (13); the card slot (14) and the card block (13) are connected in a snap-fit ​​manner, and the diameter of the card slot (14) is larger than the limiting slot (9).

Images