A piston lift fueling mechanism

Abstract

This utility model discloses a piston-type lifting oil inlet mechanism, including a mounting plate. An oil inlet pipe is fixedly mounted on the outer wall of the mounting plate. The oil inlet pipe is connected to a connector via a fixing mechanism. A connecting plate is fixedly mounted on the outer wall of the mounting plate. An oil inlet passage is fixedly provided on the outer wall of the mounting plate. An oil inlet pipe connecting bolt that mates with the oil inlet passage is threadedly connected to the outer wall of the oil inlet pipe. A piston cavity is fixedly mounted on the outer wall of the connecting plate. This utility model, by setting a lifting piston at the lower end of the oil inlet pipe to move up and down within the piston cavity, and connecting the piston cavity and the oil inlet pipe through a fixed oil inlet passage, achieves a fixed position for the oil inlet pipe, preventing it from moving with the lifting piston. This greatly improves the stability of the oil inlet mechanism, reduces the number of repairs and maintenance caused by loose oil inlet pipe connections or oil leaks, lowers equipment maintenance costs, and improves equipment utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport technology, and in particular to a piston-type lifting oil inlet mechanism. Background Technology

[0002] An oil inlet mechanism is a device in mechanical equipment used to control the flow of oil (such as lubricating oil, hydraulic oil, fuel oil, etc.) into specific working parts or systems. Its core function is to ensure that the oil is delivered stably according to a predetermined flow rate, pressure and path, while ensuring the reliability and safety of the system. It is widely used in hydraulic systems, engines, lubrication systems, fuel injection systems and other scenarios.

[0003] In recent years, with the rapid development of new energy vehicles, the testing requirements for vehicle parts have become increasingly stringent, especially for the testing of various performance aspects of larger components. In existing technologies, because the oil inlet pipe usually needs to move up and down frequently with the lifting mechanism, the oil inlet pipe connecting nut is prone to loosening during long-term use, leading to oil leakage or even the oil pipe falling off. Once oil leakage or oil pipe detachment occurs, it will not only pollute the test environment, but also seriously affect the accuracy and reliability of the test data, causing deviations in the test results and failing to truly reflect the performance of the parts. This increases the error and uncertainty of the testing work and makes it impractical. Therefore, it is necessary to redesign a piston-type lifting oil inlet mechanism to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a piston-type lifting oil inlet mechanism.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A piston-type lifting oil inlet mechanism includes a mounting plate, an oil inlet pipe fixedly mounted on the outer wall of the mounting plate, a connector connected to the oil inlet pipe via a fixing mechanism, a connecting plate fixedly mounted on the outer wall of the mounting plate, an oil inlet passage fixedly provided on the outer wall of the mounting plate, an oil inlet pipe connecting bolt threadedly connected to the outer wall of the oil inlet pipe and mating with the oil inlet passage, a piston cavity fixedly mounted on the outer wall of the connecting plate, the piston cavity being connected to the oil inlet pipe via a fixed oil inlet passage, a lifting piston slidably mounted on the piston cavity, an oil inlet port opening at the bottom of the lifting piston, an oil inlet conduit connected to the end of the lifting piston, limit blocks fixedly mounted at both the end and bottom of the lifting piston, and a sealing mechanism connecting the lifting piston to the outer wall of the oil inlet conduit.

[0007] Preferably, the fixing mechanism includes a fixing bolt threaded onto the outer wall of the oil inlet pipe, and the outer wall of the connector is threadedly connected to the fixing bolt.

[0008] Preferably, the sealing mechanism includes a sealing sleeve fixedly installed on the outer wall of the lifting piston, and the outer wall of the oil inlet conduit is connected to the inner wall of the sealing sleeve.

[0009] Preferably, the end of the oil inlet conduit is connected to the oil inlet of the test piece, and the test piece is connected to the outer wall of the oil inlet of the test piece.

[0010] Preferably, the sealing sleeve has a circular structure and is made of vulcanized rubber.

[0011] The beneficial effects of this utility model are:

[0012] 1. By setting a lifting piston at the lower end of the oil inlet pipe to move up and down within the piston chamber, and connecting the piston chamber to the oil inlet pipe through a fixed oil inlet circuit, the position of the oil inlet pipe is fixed and does not move with the lifting piston. This greatly improves the stability of the oil inlet mechanism, reduces the number of repairs and maintenance caused by problems such as loose oil inlet pipe connections and oil leaks, lowers equipment maintenance costs, and improves equipment utilization efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a piston-type lifting oil inlet mechanism proposed in this utility model;

[0014] Figure 2 This is a side view of a piston-type lifting oil inlet mechanism proposed in this utility model.

[0015] Figure 3 for Figure 1 A schematic diagram of the vertical section structure;

[0016] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0017] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0018] In the diagram: 1 Mounting plate, 2 Oil inlet pipe, 3 Fixing bolt, 4 Connector, 5 Connecting plate, 6 Oil inlet pipe connecting bolt, 7 Oil inlet circuit, 8 Lifting piston, 9 Piston cavity, 10 Oil inlet guide tube, 11 Oil inlet of the test piece, 12 Test piece, 13 Limiting block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-5A piston-type lifting oil inlet mechanism includes a mounting plate 1. An oil inlet pipe 2 is fixedly mounted on the outer wall of the mounting plate 1. The oil inlet pipe 2 is connected to a connector 4 through a fixing mechanism. The fixing mechanism includes a fixing bolt 3 threadedly mounted on the outer wall of the oil inlet pipe 2. The outer wall of the connector 4 is threadedly connected to the fixing bolt 3. A connecting plate 5 is fixedly mounted on the outer wall of the mounting plate 1. An oil inlet passage 7 is fixedly provided on the outer wall of the mounting plate 1. The mounting plate 1 serves as the basic support component of the entire mechanism, providing an installation reference for other components. The oil inlet pipe 2 is vertically fixed to the outer wall of the mounting plate 1. One end of the pipe is connected to an external oil supply system, and the other end is connected to the connector 4 through the fixing mechanism. An oil inlet pipe connecting bolt 6 passes through the mounting plate 1 and is threadedly engaged with the oil inlet pipe 2, firmly fixing the oil inlet pipe 2 at the interface of the oil inlet passage 7, ensuring that the oil can flow smoothly from the oil inlet pipe 2 into the oil inlet passage 7.

[0021] The outer wall of the oil inlet pipe 2 is threaded with an oil inlet pipe connecting bolt 6 that mates with the oil inlet passage 7. A piston cavity 9 is fixedly installed on the outer wall of the connecting plate 5. The piston cavity 9 is connected to the oil inlet pipe 2 through the fixed oil inlet passage 7. A lifting piston 8 is slidably installed on the piston cavity 9. An oil inlet is opened at the bottom of the lifting piston 8. An oil inlet conduit 10 is connected to the end of the lifting piston 8. The end of the oil inlet conduit 10 is connected to the oil inlet 11 of the test piece. The outer wall of the oil inlet 11 of the test piece is connected to the test piece 12. Limit blocks 13 are fixedly installed at both the end and the bottom of the lifting piston 8. The lifting piston 8 is connected to the outer wall of the oil inlet conduit 10 through a sealing mechanism. The sealing mechanism includes a sealing sleeve fixedly installed on the outer wall of the lifting piston 8. The outer wall of the oil inlet conduit 10 is connected to the inner wall of the sealing sleeve.

[0022] The sealing sleeve has a circular structure and is made of vulcanized rubber. The sealing sleeve is tightly fitted onto the end of the lifting piston 8, and its inner wall is tightly fitted with the outer wall of the oil inlet conduit 10. The vulcanized rubber sealing sleeve has good elasticity and oil resistance. During the up-and-down sliding process of the lifting piston 8, it can always maintain close contact with the oil inlet conduit 10, forming an effective sealing barrier. Even under oil pressure fluctuations, the sealing sleeve can compensate for the gap through its own elastic deformation, preventing oil from leaking out from the connection between the lifting piston 8 and the oil inlet conduit 10, and ensuring the sealing and stability of the entire oil inlet process.

[0023] When using this utility model, firstly, use the oil inlet pipe connecting bolt 6 to connect and fix the oil inlet pipe 2 to the oil inlet passage 7 on the mounting plate 1. When connecting, use a suitable wrench to tighten the bolt appropriately to ensure that the oil inlet pipe 2 and the oil inlet passage 7 are tightly connected. At the same time, carefully check whether there are any gaps at the connection to prevent oil leakage. Next, use the fixing bolt 3 to install the connector 4 on the oil inlet pipe 2. During the installation process, ensure that the fixing bolt 3 is tightened in place so that the connector 4 is firmly fixed on the oil inlet pipe 2. This completes the installation of the oil inlet pipe 2.

[0024] Subsequently, the connecting plate 5 is fixed to the mounting plate 1 with bolts. During fixing, it is necessary to ensure that the installation position of the connecting plate 5 is accurate so that the piston cavity 9 installed later can be placed stably and smoothly connected to the oil inlet pipe 2 through the oil inlet passage 7. The lifting piston 8 is then installed into the piston cavity 9. Since the lifting piston 8 and the piston cavity 9 are designed for sliding fit, an appropriate amount of lubricating oil is applied to the contact surface of the two during installation to reduce friction and ensure that the lifting piston 8 can slide up and down flexibly in the piston cavity 9. Then, the oil inlet conduit 10 is connected to the end of the lifting piston 8. During connection, it is necessary to ensure that the sealing sleeve is tightly wrapped around the connection point. The good elasticity of the sealing sleeve is used to ensure the sealing effect of the connection between the two.

[0025] During the test, the oil inlet device is started, and the oil enters from the oil inlet pipe 2 and flows into the piston chamber 9 along the oil inlet passage 7. As the oil flows in, the lifting piston 8 moves accordingly under the action of the oil pressure. The oil enters its interior through the oil inlet at the bottom of the lifting piston 8, and then is transported to the oil inlet 11 of the test piece through the oil inlet conduit 10, and finally flows into the test piece 12, thus completing the entire oil inlet operation process.

[0026] During the movement of the lifting piston 8, the limiting blocks 13 at its end and bottom play a crucial role. By contacting the inner wall of the piston cavity 9, they limit the range of movement of the lifting piston 8, preventing damage to the mechanism components due to excessive movement. At the same time, the sealing sleeve, with its excellent sealing performance, effectively prevents oil leakage at the connection between the oil inlet conduit 10 and the lifting piston 8, ensuring a stable and smooth oil inlet process and maintaining a clean testing environment. After the test is completed, the equipment is disassembled step by step in the reverse order of installation. During the disassembly process, each component is properly stored for subsequent inspection, maintenance, and reinstallation.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A piston lift oil feed mechanism comprising a mounting plate (1), characterised in that, An oil inlet pipe (2) is fixedly installed on the outer wall of the mounting plate (1). The oil inlet pipe (2) is connected to a connector (4) through a fixing mechanism. A connecting plate (5) is fixedly installed on the outer wall of the mounting plate (1). An oil inlet passage (7) is fixedly provided on the outer wall of the mounting plate (1). An oil inlet pipe connecting bolt (6) that mates with the oil inlet passage (7) is threadedly connected to the outer wall of the oil inlet pipe (2). A piston cavity (9) is fixedly installed on the outer wall of the connecting plate (5). The piston cavity (9) is connected to the oil inlet pipe (2) through a fixed oil inlet passage (7). A lifting piston (8) is slidably installed on the piston cavity (9). An oil inlet is opened at the bottom of the lifting piston (8). An oil inlet conduit (10) is connected to the end of the lifting piston (8). Limit blocks (13) are fixedly installed at both the end and the bottom of the lifting piston (8). The lifting piston (8) is connected to the outer wall of the oil inlet conduit (10) through a sealing mechanism.

2. A piston lift fuel injection mechanism according to claim 1, wherein The fixing mechanism includes a fixing bolt (3) threadedly installed on the outer wall of the oil inlet pipe (2), and the outer wall of the connector (4) is threadedly connected to the fixing bolt (3).

3. The piston-type lifting oil inlet mechanism according to claim 2, characterized in that, The sealing mechanism includes a sealing sleeve fixedly installed on the outer wall of the lifting piston (8), and the outer wall of the oil inlet conduit (10) is connected to the inner wall of the sealing sleeve.

4. The piston-type lifting oil inlet mechanism according to claim 3, characterized in that, The end of the oil inlet conduit (10) is connected to the oil inlet (11) of the test piece, and the outer wall of the oil inlet (11) of the test piece is connected to the test piece (12).

5. A piston-type lifting oil inlet mechanism according to claim 4, characterized in that, The sealing sleeve has a circular structure and is made of vulcanized rubber.

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