CN-224228764-U - Fuel pump assembly without supporting structure

Abstract

The utility model discloses a fuel pump assembly without a supporting structure, which relates to the technical field of fuel pump assemblies and comprises a shell and an upper cover, wherein a connecting seat is fixedly arranged at the bottom of the shell, the connecting seat is arranged in a mounting seat, the mounting seat comprises a mounting frame, spiral threads are arranged on the inner wall of the mounting frame, a mounting ring is fixedly arranged at the bottom of the inner wall of the mounting frame, the connecting seat is in spiral connection with the spiral threads, the bottom of the connecting seat is in contact with the mounting ring, a mounting plate is arranged at the bottom annular array of the mounting frame, and the mounting frame is fixedly arranged at the bottom in a fuel tank through the mounting plate. According to the utility model, the connecting seat is in spiral connection with the spiral line on the inner wall of the mounting frame, and the bottom of the connecting seat is in contact with the mounting ring on the bottom of the mounting frame, so that the shaking of the fuel pump in the running process of a vehicle can be effectively limited, the stability of the fuel pump is greatly improved, the fuel pump can work more reliably, and the abrasion of parts and the performance reduction caused by shaking are reduced.

Inventors

• JIANG SONGHU
• CHEN CHENGBO
• DU WEIWEI
• SONG XIAOHONG
• RUAN SHENGWEI

Assignees

• 浙江高阳汽车电子有限公司

Dates

Publication Date

20260512

Application Date

20250708

Claims (5)

1. 1. The fuel pump assembly without the supporting structure comprises a shell (1) and an upper cover (2) and is characterized in that a connecting seat (11) is fixedly arranged at the bottom of the shell (1), the connecting seat (11) is installed in an installation seat (3), the installation seat (3) comprises an installation frame (31), a spiral line (33) is arranged on the inner wall of the installation frame (31), an installation ring (35) is fixedly arranged at the bottom of the inner wall of the installation frame (31), the connecting seat (11) is in spiral connection with the spiral line (33), the bottom of the connecting seat (11) is in contact with the installation ring (35), a mounting plate (32) is arranged on an annular array at the bottom of the installation frame (31), and the installation frame (31) is fixedly installed at the bottom in a fuel tank through the mounting plate (32) by using bolts.
2. 2. The fuel pump assembly of claim 1, wherein the mounting frame (31) is provided with a limit groove (34) on the circumferential side in an annular manner.
3. 3. The fuel pump assembly of claim 2, wherein the connecting frames (12) are fixedly arranged on the left side and the right side of the shell (1), and the rotating frames (121) are arranged on the connecting frames (12).
4. 4. The fuel pump assembly without supporting structure according to claim 3, wherein the rotating frame (121) is rotatably provided with a limiting frame (13), an inclined pressing plate (131) is arranged at the top of the limiting frame (13), the inner side of the pressing plate (131) is connected with the connecting frame (12) through a spring (14), and a limiting plate (132) is fixedly arranged at the lower end of the limiting frame (13).
5. 5. The fuel pump assembly without supporting structure as set forth in claim 4, wherein the limiting frame (13) and the limiting plate (132) form an L-shaped plate, the limiting plate (132) corresponds to the limiting groove (34), and the top of the limiting plate (132) is attached to the top of the limiting groove (34).

Description

Fuel pump assembly without supporting structure Technical Field The utility model relates to the technical field of fuel pump assemblies, in particular to a fuel pump assembly without a supporting structure. Background The fuel pump assembly is part of an automotive fuel supply system, mounted in a fuel tank, and functions to deliver fuel stored in the fuel tank to an engine, in the prior art the overall height of the fuel pump assembly is fixed, when the fuel pump assembly is installed with the automobile, the occupied installation space is also in a fixed range, so that the installation efficiency of the fuel pump assembly is reduced, and the application range of the fuel pump assembly is also reduced. The chinese patent application number 202420628436.4 provides an unsupported fuel pump assembly, the fuel pump is located the upper cover below, and the mounting bracket cover is established in the fuel pump outside. The fuel pump is connected with the oil outlet head of the upper cover through an oil outlet corrugated pipe, and the injection interface on the mounting frame is connected with the oil inlet head of the upper cover through the oil inlet corrugated pipe, so that no direct supporting part exists between the upper cover and the fuel pump, and no supporting structure is realized. However, the above-mentioned equipment discovers in the use, and the fuel pump is connected with upper cover and mounting bracket only through play oil bellows and oil feed bellows, and in the vehicle driving process, can easily lead to the fuel pump to rock because of factors such as jolt, vibration, influence its job stabilization nature, and after long-term use, the elasticity of bellows probably can change, further reduces the stability of fuel pump, leads to sealing failure between fuel pump and the adapting unit even easily, appears the fuel leakage scheduling problem. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides a fuel pump assembly without a supporting structure, which solves the problems that the fuel pump provided in the background art is connected with an upper cover and a mounting frame only through an oil outlet corrugated pipe and an oil inlet corrugated pipe, and the fuel pump is easy to shake due to jolt, vibration and other factors in the running process of a vehicle, so that the working stability of the fuel pump is influenced. The fuel pump assembly without the supporting structure comprises a shell and an upper cover, wherein a connecting seat is fixedly arranged at the bottom of the shell, the connecting seat is arranged in a mounting seat, the mounting seat comprises a mounting frame, spiral threads are arranged on the inner wall of the mounting frame, a mounting ring is fixedly arranged at the bottom of the inner wall of the mounting frame, the connecting seat is in spiral connection with the spiral threads, the bottom of the connecting seat is in contact with the mounting ring, a mounting plate is arranged at the annular array at the bottom of the mounting frame, and the mounting frame is fixedly arranged at the bottom in a fuel tank through the mounting plate by using bolts. Preferably, the circumference of the mounting frame is annularly provided with a limit groove. Preferably, the left side and the right side of the shell are fixedly provided with connecting frames, and the connecting frames are provided with rotating frames. Preferably, the rotating frame is rotationally provided with a limiting frame, the top of the limiting frame is provided with an inclined pressing plate, the inner side of the pressing plate is connected with the connecting frame through a spring, and the lower end of the limiting frame is fixedly provided with a limiting plate. Preferably, the limiting frame and the limiting plate form an L-shaped plate, the limiting plate corresponds to the limiting groove, and the top of the limiting plate is attached to the top of the limiting groove. The utility model provides a fuel pump assembly without a supporting structure. The beneficial effects are as follows: (1) According to the utility model, the connecting seat is in spiral connection with the spiral line on the inner wall of the mounting frame, and the bottom of the connecting seat is in contact with the mounting ring on the bottom of the mounting frame, so that the shaking of the fuel pump in the running process of a vehicle can be effectively limited, the stability of the fuel pump is greatly improved, the fuel pump can work more reliably, and the abrasion of parts and the performance reduction caused by shaking are reduced. (2) After the fuel pump assembly is installed, the limiting plate is inserted into the limiting groove, so that the relative rotation between the connecting seat and the mounting frame is limited. Even if vibration is generated in the running process of the vehicle, the connecting seat is difficult to rotate on the spiral threads due to the matching o