CN219012753U

CN219012753U - Detachable fuel pump assembly of motorcycle primary filter screen

Info

Publication number: CN219012753U
Application number: CN202223438616.6U
Authority: CN
Inventors: 孙国庆; 王威; 佘艳涛; 张立听
Original assignee: Ningbo Rocket Automobile Parts Co ltd
Current assignee: Ningbo Rocket Automobile Parts Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-05-12
Anticipated expiration: 2032-12-20

Abstract

The utility model provides a detachable fuel pump assembly of a motorcycle primary filter screen, which is used for supplying oil to an engine, and comprises the following components: the novel fuel pump comprises a primary filter screen combination, a fuel pump core and a pump core support, wherein the primary filter screen combination comprises a primary filter screen, a primary filter tube and two primary filter buckles, the primary filter screen is connected with one end of the primary filter tube, and the other end of the primary filter tube is connected with an oil inlet of the pump core support; the primary filter buckle radially protrudes out of the primary filter tube; two support clamping grooves are formed in the positions, corresponding to the two primary filter clamping buckles, of the pump core support, and the primary filter clamping buckles are connected with the support clamping grooves in a screwed-in clamping mode. The primary filter screen can be dismantled to this application, does not influence fuel pump assembly oil absorption performance.

Description

Detachable fuel pump assembly of motorcycle primary filter screen

Technical Field

The utility model relates to a fuel pump assembly, in particular to a fuel pump assembly with a detachable primary filter screen, which is used in a fuel supply system of a motorcycle.

Background

The electric fuel pump assembly is arranged on the fuel tank and plays a role in pipeline connection in the fuel supply system. The gasoline in the oil tank is conveyed into the fuel oil pipeline through the filter screen and the oil outlet pipe by the suction generated when the built-in gasoline pump works, so that the consumption of the engine is provided. In the fuel supply system, the fuel is filtered by a primary filter screen to remove impurities in the fuel, and then pumped by a pump core, wherein one part of the fuel is supplied to the engine through a main pipeline, and the other part of the fuel is returned to the fuel tank through a pressure valve.

The motorcycle fuel pump assembly in the prior art has the following defects in actual use:

the motorcycle fuel pump has the advantages that (one) the primary filter screen is not replaced for a long time: the primary filter screen of the motorcycle fuel pump assembly is not replaced for a long time, so that a lot of impurities are adsorbed on the primary filter screen, and the primary filter screen can be blocked;

(II) non-replaceable primary filter screen structure of motorcycle fuel pump assembly: most of the non-replaceable primary filter screen structures are lock catches and buckle type fuel pump assemblies, the primary filter screen is not detachable to be replaced, and the assembly structures of the primary filter screen and the fuel pump assemblies can be damaged by forced detachment.

Thus, the prior art fuel pump assemblies have had room for improvement.

Disclosure of Invention

In view of the defects in the prior art, the utility model aims to provide a fuel pump assembly with a detachable primary filter screen, which is used in a fuel supply system of a motorcycle, so as to solve the problems in the prior art.

According to one aspect of the present utility model there is provided a removable fuel pump assembly for a motorcycle primary filter screen for supplying fuel to an engine, the fuel pump assembly comprising: the novel fuel pump comprises a primary filter screen combination, a fuel pump core and a pump core support, wherein the primary filter screen combination comprises a primary filter screen, a primary filter tube and two primary filter buckles, the primary filter screen is connected with one end of the primary filter tube, and the other end of the primary filter tube is connected with an oil inlet of the pump core support; the primary filter buckle radially protrudes out of the primary filter tube; two support clamping grooves are formed in the positions, corresponding to the two primary filter clamping buckles, of the pump core support, and the primary filter clamping buckles are connected with the support clamping grooves in a screwed-in clamping mode.

Preferably, the primary filter screen combination still includes the primary filter press board, the primary filter press board is an arc bar elastomer, the one end fixed connection of primary filter press board the primary filter tube, the other end of primary filter press board is including pressing the board buckle and pressing the board die, the pump core support corresponds the position of pressing the board buckle sets up the support card post, support card post block connection press the board buckle for it is spacing the primary filter screen combination.

Preferably, the fuel pump assembly further comprises a sealing ring, and the sealing ring is arranged on the oil inlet of the pump core support.

The purpose of the present application is: when the stroke of the motorcycle reaches a certain stroke, the primary filter screen is blocked, the primary filter screen of the fuel pump assembly can be replaced better and more conveniently, and impurities in fuel oil can be filtered better. The specific purpose is as follows:

according to the travel of the motorcycle, the primary filter screen of the fuel pump assembly of the motorcycle is not replaced for a long time, and a lot of impurities are adsorbed on the primary filter screen, so that the primary filter screen can be blocked, and the oil absorption performance of the fuel pump assembly is affected;

the primary filter screen detachable structure of the motorcycle fuel pump assembly is convenient to detach, and only one finger is used for pressing the primary filter screen pressing plate and then the primary filter screen is rotated to detach.

Compared with the prior art, the utility model has the following beneficial effects:

1. the primary filter screen can be detached, and the oil absorption performance of the fuel pump assembly is not affected;

2. the detachable primary filter screen has a simple structure, and can be detached conveniently.

It is, of course, not necessary for all of the above described features to be achieved in the practice of any one embodiment of the present disclosure.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of the appearance of the primary filter screen assembly, fuel pump cartridge and cartridge holder of the present application;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic illustration of a seal ring connected to an oil inlet of a fuel pump core;

FIG. 4 is a schematic illustration of the primary filter screen assembly coupled to the fuel pump core fuel inlet;

FIG. 5 is a schematic top view of the primary screen of FIG. 4 with the primary screen removed;

fig. 6 is a schematic view of the snap connection in fig. 5.

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

Please refer to fig. 1 and 2 for an external schematic view and an explosion diagram of the primary filter screen combination, the fuel pump core and the pump core support, the motorcycle primary filter screen detachable fuel pump assembly is used for supplying oil to an engine, the structure of the fuel pump assembly is an inverted fuel pump assembly, and the fuel pump assembly comprises: a pressure valve (not shown), a primary filter screen assembly 10, a flange assembly (not shown), a fuel pump cartridge (not shown), and a cartridge holder 30, the fuel pump assembly of the present application being a motorcycle profile fuel pump assembly for use in a high pressure fuel supply system. In the fuel supply system, a fuel pump assembly is fixed on a fuel tank in a special shape, fuel is pumped by the fuel pump core, impurities in the fuel are removed by filtering through a primary filter screen assembly 10, one part of the fuel is supplied to an engine through a main pipeline, and the other part of the fuel flows back into the fuel tank through a pressure valve.

Referring to fig. 2 and 3, the primary filter assembly 10 includes a primary filter 11, a primary filter tube 12, and two primary filter buckles 13, wherein the primary filter 11 is connected to one end of the primary filter tube 12, and the primary filter 11 is connected to the primary filter tube 12 by ultrasonic welding; the other end of the primary filter tube 12 is connected with an oil inlet 31 of the pump core support 30, the oil inlet of the fuel pump core is arranged in the oil inlet 31 of the pump core support 30, fuel enters the fuel pump core after passing through the oil inlet 31 of the pump core support 30, the fuel pump core is coated in the middle of the pump core support 30 in fig. 2 and 3, and the primary filter tube 12 is sleeved outside a pipeline connected with the oil inlet 31 of the pump core support 30; the primary filter buckles 13 radially protrude out of the primary filter tube 12, in this embodiment, two primary filter buckles 13 are evenly distributed on the outer surface of the primary filter tube 12, that is, two primary filter buckles 13 correspond to the circle center, but cannot be used for limiting the application, and as long as the distribution angle of stable connection can be ensured, the protection scope of the application is ensured.

As shown in fig. 3, two bracket clamping grooves 32 are formed at positions of the pump core bracket 30 corresponding to the two primary filter fasteners 13, where the corresponding positions mean that the relative positions of the two primary filter fasteners 13 are the same as the relative positions of the two bracket clamping grooves 32, so that the two primary filter fasteners 13 can be simultaneously clamped and connected with the two bracket clamping grooves 32, the primary filter fasteners 13 are screwed and clamped and connected with the bracket clamping grooves 32, the bracket clamping grooves 32 are used for limiting the primary filter screen assembly 10, and after the primary filter fasteners 13 are clamped and connected with the bracket clamping grooves 32, axial movement of the primary filter screen assembly 10 is limited, that is, movement of the primary filter screen assembly 10 in the vertical direction is limited; the bracket clamping groove 32 is a one-way opening groove, and only one side is an opening, so that the primary filter screen assembly 10 can be guaranteed to reach a designed position when being screwed in place.

As shown in fig. 3, the primary filter screen assembly 10 further includes a primary filter pressing plate 14, and the primary filter tube 12, the primary filter fastener 13 and the primary filter pressing plate 14 are integrally formed; the primary filter pressing plate 14 is an arc strip-shaped elastic body, and the relative height positions of the primary filter pressing plate 14 and the primary filter buckle 13 are as follows: the primary filter pressing plate 14 is positioned between the primary filter clamping buckle 13 and the primary filter screen 11, one end of the primary filter pressing plate 14 is fixedly connected with the primary filter pipe 12, the other end of the primary filter pressing plate 14 comprises a pressing plate clamping buckle 141 and a pressing plate pressing piece 142, the pressing plate clamping buckle 141 is used for limiting the rotation of the primary filter screen combination 10, and the pressing plate pressing piece 142 is used for releasing the limitation of the pressing plate clamping buckle 141 on the rotation of the primary filter screen combination 10; in fig. 4 and 5, in the embodiment of the present application, the support clamping columns 33 share a part of the pump core support 30, instead of setting up a separate column, so that the cost can be saved, and the support clamping columns 33 are in clamping connection with the pressing plate clamping buckles 141, so as to limit the movement of the primary filter screen assembly 10 in the horizontal direction, that is, limit the movement of the primary filter screen assembly 10; the pressing plate buckle 141 is an angular body with a protruding inclined surface, the pressing plate buckle 141 is pressed by the support clamping post 33 in the process of rotating and clamping the pressing plate 14 moves inwards, in fig. 6, until the support clamping post 33 arrives at a vertical step position behind the inclined surface of the pressing plate buckle 141, the pressure of the support clamping post 33 to the pressing plate buckle 141 is reduced, the pressing plate 14 moves outwards, and the support clamping post 33 is connected with the pressing plate buckle 141 in a clamping manner.

As described above, after assembly, the primary filter assembly 10 is subjected to two limiting forces, one is that the primary filter buckle 13 is engaged with the bracket slot 32 to limit the vertical movement of the primary filter assembly 10, the other is that the bracket clamping post 33 is engaged with the pressing plate buckle 141 to limit the horizontal movement of the primary filter assembly 10, and the primary filter assembly 10 is limited by the two limiting forces to be stably connected with the pump core bracket 30.

Through long-time use, have the jam the possibility of primary filter screen 11, after certain stroke, the motorcycle primary filter screen 11 can adsorb a lot of impurity on the filter screen surface, can block up the filter screen hole, after the change primary filter screen 11 can be better filter impurity in the fuel, and motorcycle power is more sufficient, and during the change, as long as press the board die 142 makes support card post 33 with press the board buckle 141 pine takes off, anticlockwise rotation primary filter screen combination 10 can be with primary filter screen combination 10 is dismantled, then changes and installs a new primary filter screen combination 10.

Referring to fig. 2 and 3, the fuel pump assembly of the present application further includes a seal ring 40, where the seal ring 40 is disposed at the oil inlet 31 of the pump core support 30, so as to prevent fuel from leaking from the connection structure between the primary filter tube 12 and the oil inlet 31 of the pump core support 30, and affect the oil pressure in the oil supply pipeline.

The specific working process of the electric fuel pump is as follows:

firstly, a sealing ring 40 is assembled on an oil inlet 31 of the pump core bracket 30, then the primary filter screen assembly 10 is assembled on the pump core bracket 30, and the primary filter screen assembly 10 is rotated clockwise until a primary filter screen buckle 13 of the primary filter screen assembly 10 is buckled in a bracket clamping groove 32, namely, the primary filter screen assembly 10 is rotated to a buckling point to finish assembly; when the primary filter screen assembly 10 is detached, the plate pressing sheet 142 on the primary filter screen assembly 10 is pressed down, the primary filter screen assembly 10 is rotated anticlockwise, and the primary filter screen assembly 10 is detached.

The motorcycle fuel pump assembly working principle of the application:

1. when the fuel pump assembly starts to work, fuel is filtered by the primary filter screen assembly 10, one part of flow of the fuel outlet of the fuel pump core provides the fuel with instant pressure and instant flow to the fuel system of the engine, and the other part returns the split fuel pump to the fuel tank through the pressure valve;

2. the fuel passes through the primary filter screen assembly 10, so that impurities in the fuel are filtered, the impurities are prevented from entering the fuel pump core to block the blades, and the fuel cannot work normally;

3. the constant pressure across the pressure valve allows a steady pressure in the fuel supply system into the engine fuel system.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the claims without affecting the spirit of the utility model.

Claims

1. A removable fuel pump assembly for supplying fuel to an engine, the fuel pump assembly comprising: the novel fuel pump comprises a primary filter screen combination, a fuel pump core and a pump core support, wherein the primary filter screen combination comprises a primary filter screen, a primary filter tube and two primary filter buckles, the primary filter screen is connected with one end of the primary filter tube, and the other end of the primary filter tube is connected with an oil inlet of the pump core support; the primary filter buckle radially protrudes out of the primary filter tube;

two support clamping grooves are formed in the positions, corresponding to the two primary filter clamping buckles, of the pump core support, and the primary filter clamping buckles are connected with the support clamping grooves in a screwed-in clamping mode.

2. The removable fuel pump assembly of claim 1, wherein the primary filter screen assembly further comprises a primary filter press plate, the primary filter press plate is an arc strip-shaped elastomer, one end of the primary filter press plate is fixedly connected with the primary filter tube, the other end of the primary filter press plate comprises a press plate buckle and a press plate pressing piece, a support clamping column is arranged at a position of the pump core support corresponding to the press plate buckle, and the support clamping column is in clamping connection with the press plate buckle for limiting the primary filter screen assembly.

3. The removable fuel pump assembly of claim 2, further comprising a seal ring disposed on an oil inlet of the pump core bracket.