A new high-pressure oil pump device

Abstract

This utility model belongs to the field of high-pressure oil pump technology, specifically disclosing a novel high-pressure oil pump device, including a pump body, a plate, an oil outlet pipe, an oil inlet pipe, and mounting components. The pump body is mounted on the plate, with one end connected to the oil outlet pipe, and the end of the oil outlet pipe away from the pump body connected to the oil inlet pipe. The end of the oil inlet pipe away from the oil outlet pipe is provided with mounting components. There are two sets of mounting components, each set including a connecting ring fixedly connected to the outer wall of the mounting pipe, a fixing ring fixedly connected to the outer wall of the oil inlet pipe, and a quick-connect structure between the connecting ring and the fixing ring. This utility model, through the setting of the mounting components, ensures a stable and reliable connection between the mounting pipe and the oil inlet pipe. Specifically, the cooperation between the insert plate and the slot forms a rigid axial limit, which can resist the axial force generated by the oil flow impact, avoid relative displacement between the mounting pipe and the oil inlet pipe due to external forces, and ensure the sealing performance.

Description

Technical Field

[0001] This application relates to the field of high-pressure oil pump technology, and more specifically, to a novel high-pressure oil pump device. Background Technology

[0002] The high-pressure fuel pump is a core component of the internal combustion engine's fuel supply system. Its core function is to pressurize the low-pressure fuel in the fuel tank to extremely high pressures, typically reaching 1000 to 3000 bar or even higher, and then precisely and quantitatively deliver this high-pressure fuel to the injectors according to the engine's operating conditions, ultimately achieving efficient atomization and combustion of the fuel in the combustion chamber. It is the power heart of direct-injection engines, such as diesel and gasoline engines, directly determining the engine's power, fuel economy, and emissions levels.

[0003] The patent CN221921184U discloses a high-pressure oil pump that is easy to maintain. The oil filter cover is fixed on the oil inlet pipe and fixed on the mounting pipe. When the oil filter cover needs to be replaced, the positioning component makes the bent rod leave the slot on the fixing block and remove the mounting pipe, so that the oil filter cover can be removed quickly. This allows maintenance personnel to replace, clean and maintain the filter element more quickly, saving maintenance time and labor costs and improving the efficiency of maintenance work.

[0004] Although this patent can improve the efficiency of maintenance work, the patent achieves quick disassembly of the oil filter cover through the positioning components of push block, slider and spring. The spring and other components cannot effectively resist the radial force of impeller rotation and the axial force of oil flow impact when the oil pump is running. Long-term use is prone to relative displacement between the installation pipe and the oil inlet pipe, which will damage the sealing surface. Utility Model Content

[0005] To address the aforementioned problems, this application provides a novel high-pressure oil pump device.

[0006] The novel high-pressure oil pump device provided in this application adopts the following technical solution: A novel high-pressure oil pump device includes a pump body, a plate, an oil outlet pipe, an oil inlet pipe, and mounting components; The pump body is mounted on the plate, with one end connected to the oil outlet pipe, the end of the oil outlet pipe away from the pump body connected to the oil inlet pipe, and the end of the oil inlet pipe away from the oil outlet pipe equipped with an installation component. The mounting assembly consists of two sets. Each set includes a connecting ring fixedly connected to the outer wall of the mounting pipe, a fixing ring fixedly connected to the outer wall of the oil inlet pipe, and a quick-connect structure located between the connecting ring and the fixing ring.

[0007] Through the above technical solution, the installation components ensure a stable and reliable connection between the installation pipe and the oil inlet pipe. Specifically, the cooperation between the insert plate and the slot forms a rigid axial limit, which can resist the axial force generated by the oil flow impact, prevent the installation pipe and the oil inlet pipe from being displaced relative to each other due to external forces, and ensure the sealing performance.

[0008] Furthermore, the quick-connect structure includes a telescopic plate and a fixing block. The telescopic plate has insert plates at both ends, and each insert plate has a locking block fixedly connected to both ends. The fixing block has a slot for inserting the insert plate and a slot for locking the locking block, so as to realize the quick and detachable connection between the installation pipe and the oil inlet pipe.

[0009] Furthermore, the outer wall of the mounting pipe is provided with external threads, the corresponding inner wall of the oil inlet pipe is provided with internal threads that mate with it, and one end of the oil inlet pipe is provided with a sealing ring, one end of which is in contact with the mounting pipe.

[0010] Through the above technical solution, the threaded connection between the installation pipe and the oil inlet pipe, combined with the compression deformation of the sealing ring, forms a double seal to prevent oil leakage due to displacement of the sealing surface.

[0011] Furthermore, the inside of the installation tube is equipped with an oil filter cover, and one end of the oil filter cover is fixedly connected to multiple insert rods.

[0012] Furthermore, the oil filter cover is slidably connected to the mounting pipe, and a circular plate is fixedly connected to the inner wall of the mounting pipe.

[0013] Furthermore, the annular plate has multiple insertion holes inside, and each insertion rod is inserted into the corresponding insertion hole.

[0014] Furthermore, a limit block is fixedly connected to one end of each of the two telescopic plates, and a limit groove is opened inside each of the two fixed blocks.

[0015] With the above technical solution, when the telescopic plate is stretched to insert the insert plate into the slot, the limiting block will be embedded in the limiting groove at the same time. The tightly fitting limiting structure can limit the lateral sway of the insert plate in the slot and prevent the telescopic plate from shifting due to vibration.

[0016] Furthermore, the two limit blocks are respectively inserted into the corresponding limit slots.

[0017] In summary, this application includes at least one of the following beneficial technical effects: (1) This utility model ensures a stable and reliable connection between the installation pipe and the oil inlet pipe through the setting of the installation components. Specifically, the cooperation between the insert plate and the slot forms a rigid axial limit, which can resist the axial force generated by the oil flow impact, avoid the relative displacement of the installation pipe and the oil inlet pipe due to external force, and ensure the sealing performance. (2) The threaded connection between the installation pipe and the oil inlet pipe of this utility model, together with the compression deformation of the sealing ring, forms a double seal to prevent oil leakage due to displacement of the sealing surface; (3) When the telescopic plate is stretched to insert the insert plate into the slot, the limiting block will be embedded in the limiting groove simultaneously. The tightly fitting limiting structure can limit the lateral sway of the insert plate in the slot and prevent the telescopic plate from shifting due to vibration. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a partial view of the present invention; Figure 4 This is a schematic diagram of the connection structure between the mounting pipe and the oil inlet pipe of this utility model; Figure 5 This is a schematic diagram of the connection structure between the oil filter cover and the annular plate of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Pump body; 2. Plate; 3. Mounting pipe; 4. Oil outlet pipe; 5. Oil inlet pipe; 6. Insert rod; 7. Sealing ring; 8. Connecting ring; 9. Fixing ring; 10. Telescopic plate; 11. Fixing block; 12. Limiting groove; 13. Limiting block; 14. Insert plate; 15. Locking block; 16. Locking groove; 17. Slot; 18. Circular ring plate; 19. Oil filter cover. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] Reference Figures 1-5 A novel high-pressure oil pump device includes a pump body 1, a plate 2, an oil outlet pipe 4, an oil inlet pipe 5, and mounting components; Pump body 1 is mounted on plate 2. One end of pump body 1 is connected to oil outlet pipe 4. The end of oil outlet pipe 4 away from pump body 1 is connected to oil inlet pipe 5. The end of oil inlet pipe 5 away from oil outlet pipe 4 is provided with mounting components. The mounting components are provided in two sets. Each set of mounting components includes a connecting ring 8 that is fixedly connected to the outer wall of the mounting pipe 3, a fixing ring 9 that is fixedly connected to the outer wall of the oil inlet pipe 5, and a quick-connect structure provided between the connecting ring 8 and the fixing ring 9.

[0022] First, the pump body 1 is stably fixed to the preset mounting holes on the plate 2 with bolts to ensure that the pump body 1 does not shake violently during operation. The oil delivery process starts from the oil inlet pipe 5 and passes through the internal oil filter 19 to filter impurities. At this time, the pump body 1 starts, and its internal plunger or gear structure operates to pressurize the incoming clean oil and convert it into high-pressure oil. Finally, the high-pressure oil is delivered to the downstream equipment through the oil outlet pipe 4 connected to the other end of the pump body 1.

[0023] When the oil filter cover 19 needs maintenance (such as when the filter screen is clogged or damaged), first press the two locking blocks 15 inward, and then pull the telescopic plate 10 to retract the telescopic plate 10, so that the locking blocks 15 are disengaged from the slot 16, the insert plate 14 is pulled out of the slot 17, and the limiting block 13 is removed from the limiting slot 12, thus releasing the constraint of the quick-connect structure. Then rotate the mounting tube 3 in the opposite direction to loosen and separate the threaded connection between the mounting tube 3 and the oil inlet pipe 5. After removing the mounting tube 3, the oil filter cover 19 can be maintained.

[0024] Reference Figures 3-4 The quick-connect structure includes a telescopic plate 10 and a fixing block 11. The telescopic plate 10 has insert plates 14 at both ends. Each insert plate 14 has a locking block 15 fixedly connected to both ends. The fixing block 11 has a slot 17 for inserting the insert plate 14 and a locking groove 16 for locking the locking block 15, so as to realize the quick and detachable connection between the installation pipe 3 and the oil inlet pipe 5.

[0025] Reference Figure 4 The outer wall of the mounting pipe 3 is provided with external threads, and the corresponding inner wall of the oil inlet pipe 5 is provided with internal threads that match it. One end of the oil inlet pipe 5 is provided with a sealing ring 7, and one end of the sealing ring 7 is in contact with the mounting pipe 3.

[0026] When installing the installation pipe 3, first rotate the installation pipe 3 so that the external thread machined on the outer wall of the installation pipe 3 engages with the internal thread machined on the inner wall of the corresponding port of the oil inlet pipe 5 and tightens it. At the same time, the sealing ring 7 (made of oil-resistant nitrile rubber) embedded on the inner side of the port of the oil inlet pipe 5 will be in close contact with the end face of the installation pipe 3. Under the action of the thread preload, it will undergo compression deformation to prevent oil leakage. After the rotation is completed, the two telescopic plates 10 correspond one-to-one with the fixed block 11. At this time, stretch the telescopic plate 10 so that the insert plates 14 at both ends gradually approach the fixed block 11 until the insert plates 14 are aligned with the slots 17 on the fixed block 11. Slowly push the telescopic plate 10 so that the insert plates 14 are smoothly inserted into the slots 17. When the locking block 15 is fully inserted into the locking groove 16, a slight "click" sound will be heard. The insert plates 14 have achieved axial limitation and cannot be arbitrarily removed.

[0027] Reference Figure 5The installation tube 3 is equipped with an oil filter cover 19 inside. One end of the oil filter cover 19 is fixedly connected to multiple insertion rods 6. The oil filter cover 19 is slidably connected to the installation tube 3. The inner wall of the installation tube 3 is fixedly connected to a circular ring plate 18. Multiple insertion holes are opened inside the circular ring plate 18, and each insertion rod 6 is inserted into the corresponding insertion hole.

[0028] Since the oil filter cover 19 and the mounting tube 3 are slidably connected, and the insertion rod 6 and the annular plate 18 are only plugged in, after removing the mounting tube 3, push the oil filter cover 19 outward along the axial direction of the mounting tube 3 to pull the insertion rod 6 out of the insertion hole of the annular plate 18, and then remove the oil filter cover 19. After maintenance, place the oil filter cover 19 into the mounting tube 3, align the insertion rod 6 with the insertion hole, and then push the oil filter cover 19 with your finger or the mounting rod to insert the insertion rod 6 into the insertion hole to complete the installation.

[0029] Reference Figure 4 One end of each of the two telescopic plates 10 is fixedly connected to a limiting block 13, and the interior of each of the two fixed blocks 11 is provided with a limiting groove 12. The two limiting blocks 13 are respectively inserted into the corresponding limiting grooves 12.

[0030] Since the width of the slot 17 needs to be greater than the width of the insert plate 14 for the card block 15 to enter smoothly, there will be a certain gap in the insert plate 14 within the slot 17. If only the cooperation between the insert plate 14 and the slot 17 is relied upon, the vibration of the oil pump during operation will easily cause the insert plate 14 to shake within the slot 17. However, when the telescopic plate 10 is extended to insert the insert plate 14 into the slot 17, the limiting block 13 will simultaneously embed into the limiting groove 12. The tightly fitting limiting structure can limit the lateral shaking of the insert plate 14 within the slot 17, preventing the telescopic plate 10 from shifting due to vibration.

[0031] Working principle: When installing the installation pipe 3, rotate the installation pipe 3 so that the external thread on its outer wall engages with the internal thread on the corresponding port of the oil inlet pipe 5 and is tightened. The sealing ring 7 on the inner side of the port of the oil inlet pipe 5 contacts the end face of the installation pipe 3 and is compressed and deformed under the action of thread pre-tightening force to achieve sealing. After the rotation is completed, the telescopic plate 10 is stretched so that the two end plates 14 are aligned with the slots 17 of the fixing block 11 and inserted until the locking block 15 is inserted into the slot 16. At the same time, the limiting block 13 at one end of the telescopic plate 10 is embedded into the limiting groove 12 of the fixing block 11 to limit the lateral sway of the plate 14, thus completing the fixing of the installation pipe 3 and the oil inlet pipe 5.

[0032] The oil delivery process starts from the inlet pipe 5. After the oil enters the installation pipe 3, it passes through the internal oil filter hood 19 to filter impurities. The filtered clean oil flows into the inlet pipe 5 and then into the pump body 1. The plunger or gear structure inside the pump body 1 operates to pressurize the oil into high-pressure oil, which is finally delivered to the downstream equipment through the outlet pipe 4.

[0033] When the oil filter cover 19 needs maintenance, first press the locking block 15 inward, pull the telescopic plate 10 to retract it, so that the locking block 15 disengages from the locking groove 16, the insert plate 14 is pulled out of the slot 17, and the limiting block 13 exits the limiting groove 12, thus releasing the constraint of the quick-connect structure; then rotate the mounting tube 3 in the opposite direction to separate the threaded connection with the oil inlet pipe 5, remove the mounting tube 3, and push the oil filter cover 19 axially so that the insert rod 6 is pulled out of the insertion hole of the annular plate 18, and the oil filter cover 19 can be removed for maintenance.

[0034] After maintenance, place the oil filter cover 19 into the installation tube 3, align the insertion rod 6 with the insertion hole and insert it, then reverse the installation steps to re-fix the installation tube 3 and restore the equipment operation.

[0035] 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. A novel high pressure oil pump apparatus, characterized by, include: Pump body (1), plate (2), oil outlet pipe (4), oil inlet pipe (5), and mounting components; The pump body (1) is mounted on the plate (2), one end of which is connected to the oil outlet pipe (4), and the end of the oil outlet pipe (4) away from the pump body (1) is connected to the oil inlet pipe (5). The end of the oil inlet pipe (5) away from the oil outlet pipe (4) is provided with an installation component. The installation assembly is provided in two sets. Each set of installation assemblies includes a connecting ring (8) fixedly connected to the outer wall of the installation pipe (3), a fixing ring (9) fixedly connected to the outer wall of the oil inlet pipe (5), and a quick-connect structure provided between the connecting ring (8) and the fixing ring (9).

2. A novel high pressure oil pump apparatus as claimed in claim 1, wherein: The quick-connect structure includes a telescopic plate (10) and a fixing block (11). The telescopic plate (10) has insert plates (14) at both ends. Each insert plate (14) has a locking block (15) fixedly connected to both ends. The fixing block (11) has a slot (17) for inserting the insert plate (14) and a slot (16) for locking the locking block (15) to achieve quick and detachable connection between the installation pipe (3) and the oil inlet pipe (5).

3. A novel high pressure oil pump apparatus as claimed in claim 1, wherein: The outer wall of the mounting pipe (3) is provided with an external thread, and the corresponding inner wall of the oil inlet pipe (5) is provided with an internal thread that matches it. One end of the oil inlet pipe (5) is provided with a sealing ring (7), and one end of the sealing ring (7) is in contact with the mounting pipe (3).

4. A novel high pressure oil pump apparatus as claimed in claim 1, wherein: The installation tube (3) is equipped with an oil filter cover (19) inside, and a plurality of plug rods (6) are fixedly connected to one end of the oil filter cover (19).

5. A novel high pressure oil pump apparatus as claimed in claim 4, wherein: The oil filter cover (19) is slidably connected to the mounting tube (3), and the inner wall of the mounting tube (3) is fixedly connected to a circular ring plate (18).

6. A novel high pressure oil pump apparatus as claimed in claim 5, wherein: The annular plate (18) has multiple insertion holes inside, and each insertion rod (6) is inserted into the corresponding insertion hole.

7. A novel high pressure oil pump apparatus as claimed in claim 2, wherein: One end of each of the two telescopic plates (10) is fixedly connected to a limiting block (13), and the interior of each of the two fixing blocks (11) is provided with a limiting groove (12).

8. A novel high-pressure oil pump device according to claim 7, characterized in that: The two limiting blocks (13) are respectively inserted into the corresponding limiting grooves (12).

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