CN217841867U

CN217841867U - Single-shell fuel pump

Info

Publication number: CN217841867U
Application number: CN202221308401.XU
Authority: CN
Inventors: 谯丹; 谯登江
Original assignee: Wenzhou Tianqi Auto Parts Co ltd
Current assignee: Wenzhou Tianqi Auto Parts Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-11-18
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a single shell fuel pump, including the upper end cover, the V-arrangement jump ring, the magnetic shoe, the rotor, the impeller seat, impeller and impeller cap, still include single shell, the riveting fastening is pressed between the one end opening inner wall of single shell and the upper end cover outer wall, the riveting fastening is pressed between the other end opening inner wall of single shell and the impeller cap outer wall, the magnetic shoe passes through the V-arrangement jump ring and installs on the inner wall of single shell, the rotor sets up in the cavity of single shell, the pivot one end of rotor is mobile to be inserted and to be established on the upper end cover, the pivot other end of rotor passes the impeller seat and connects the impeller, the impeller is sealed up the impeller on the impeller seat to impeller cap lid, be equipped with the ring channel corresponding with the impeller seat on the single shell inner wall, be equipped with spacing step on the outer wall of impeller seat, this spacing step ann is inserted in the inner of this ring channel. Therefore, the technical effect of structural optimization is achieved, the assembly difficulty is reduced, and noise is avoided.

Description

Single-shell fuel pump

Technical Field

The utility model relates to a fuel pump for car, concretely relates to single shell fuel pump.

Background

A general fuel pump structure for an automobile is shown in figure 1 and comprises a shell 2, an inner machine shell 3, an upper end cover 1, a V-shaped clamp spring 4, a magnetic shoe 5, a rotor 6, an impeller seat 4, an impeller 8 and an impeller cover 9, wherein the magnetic shoe is installed on the outer wall of the inner machine shell 3 through the V-shaped clamp spring 4, the rotor 6 is arranged in the hollow of the inner machine shell 3, one side of the upper end cover 1 is inserted into one end of the inner machine shell 3, the other end of the inner machine shell is inserted into one end of the impeller seat 4, a rotating shaft of the rotor 6 penetrates through the impeller seat 4 and then is connected with the impeller 8, the impeller cover 9 is arranged on the impeller 8 and is in contact with the impeller seat 7, the shell 2 needs to be sleeved on the outer wall of the inner machine shell 3 and surrounds the peripheral walls of the impeller seat 7, the impeller 8 and the impeller cover 9 of the upper end cover, so that the assembly difficulty is high, an annular flange with an inward shape is arranged at one end of the shell, a sealing ring is arranged between the flange and a step on the outer wall of the outer end cover, and the inner machine shell is an aluminum shell, and the inner machine shell is an iron pipe, and the fuel pump is enabled after the two are assembled due to lack of tolerance and precision, the looseness phenomenon occurs, so that the fuel pump structure can cause noise and the fuel pump product to have certain reliability.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, an object of the present invention is to provide a fuel pump with a single housing, which is optimized in structure, thereby reducing the assembly difficulty and avoiding noise generation.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a single shell fuel pump, includes upper end cover, V-arrangement jump ring, magnetic shoe, rotor, impeller seat, impeller and impeller lid, still includes single shell, the one end opening inner wall of single shell with press between the upper end cover outer wall and rivet the fastening, press between the other end opening inner wall of single shell and the impeller lid outer wall and rivet the fastening, the magnetic shoe passes through the V-arrangement jump ring and installs on the inner wall of single shell, the rotor sets up in the cavity of single shell, and the pivot one end of rotor is mobile to be inserted and is established on the upper end cover, the pivot other end of rotor passes the impeller seat and connects the impeller, the impeller is sealed up on the impeller seat to the impeller lid, be equipped with on the single shell inner wall with the corresponding ring channel of impeller seat, be equipped with spacing step on the outer wall of impeller seat, this spacing step assigns in the inner of this ring channel.

The single shell is provided with an inserting groove corresponding to the upper end cover, the outer wall of the upper end cover is provided with an inserting step, and the inserting step is inserted into the single shell and matched with the inserting groove.

The single shell is an iron pipe body.

The utility model has the advantages that: compared with the prior art, the structure reduces the installation and use of the sealing ring, reduces the cost, optimizes the structure of the original shell and the inner shell into a single shell, reduces the difficulty of assembly, and simultaneously, the upper end cover and the impeller cover are installed on the shell in a connecting mode of pressing and riveting, so that the firmness degree of the structure is improved, the technical effect of structural optimization is achieved, the assembly difficulty is reduced, and noise is avoided.

The present invention will be further described with reference to the accompanying drawings and detailed description.

Drawings

FIG. 1 is a block diagram of a prior art fuel pump;

fig. 2 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The present invention is described in detail below with reference to the following examples, which are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention.

As shown in fig. 2, the embodiment discloses a single-housing fuel pump, which includes an upper end cover 1, a V-shaped snap spring 3, a magnetic shoe 4, a rotor 5, an impeller seat 6, an impeller 7, and an impeller cover 8, and further includes a single housing 2, the inner wall of an opening at one end of the single housing 2 is press-riveted and fastened with the outer wall of the upper end cover 1, the inner wall of an opening at the other end of the single housing 2 is press-riveted and fastened with the outer wall of the impeller cover 8, the magnetic shoe 4 is installed on the inner wall of the single housing 2 through the V-shaped snap spring 3, the rotor 5 is disposed in a hollow space of the single housing 2, one end of a rotating shaft of the rotor 5 is movably inserted on the upper end cover 1, the other end of the rotating shaft of the rotor 5 penetrates through the impeller seat 6 to connect the impeller 7, the impeller cover 8 is covered on the impeller seat 6 to seal the impeller 7, an annular groove 20 corresponding to the impeller seat 6 is disposed on the inner wall of the single housing 2, a limiting step 61 is disposed on the outer wall of the impeller seat 6, and the inner end of the annular groove 20 is inserted in the limiting step 61.

The single shell 2 is provided with an inserting groove 21 corresponding to the upper end cover 1, the outer wall of the upper end cover 1 is provided with an inserting step 11, and the inserting step 11 is inserted into the single shell 2 and matched with the inserting groove 21. The structure enables the upper end cover 1 and the single shell 2 to be matched more conveniently during assembly, and the upper end cover and the single shell are pressed and riveted tightly after being matched, so that the compactness of the structure is greatly improved.

The single housing 2 is an iron pipe. This iron body passes through the shaping back edge rolling shaping of iron sheet stamping, and specific saying so the iron sheet is through the punching press annular groove 20 and the shaping of ann slot 21, and the mode through the edge rolling is coiled into the tube body form again afterwards, forms single shell 2 like this, compares the mode that the iron pipe both ends hole carried out the bench, and such mode is with low costs, and is efficient.

Adopt above-mentioned technical scheme, compare prior art, this structure has reduced the installation and use of sealing washer, the cost is reduced, optimizes the structure of original shell and inner casing into single shell 2 simultaneously, has reduceed the degree of difficulty of assembly, and upper end cover 1 and impeller cover 8 are installed on the shell through the connected mode of riveting by pressure simultaneously, have improved the firm degree of structure, have just so reached the technological effect of configuration optimization to reduce the assembly degree of difficulty and avoid the noise to produce.

Claims

1. The utility model provides a single shell fuel pump, includes upper end cover, V-arrangement jump ring, magnetic shoe, rotor, impeller seat, impeller and impeller lid, its characterized in that: still include single shell, the one end opening inner wall of single shell with press between the upper end cover outer wall and rivet the fastening, press between the other end opening inner wall of single shell and the impeller cover outer wall and rivet the fastening, the magnetic shoe passes through the V-arrangement jump ring and installs on the inner wall of single shell, the rotor sets up in the cavity of single shell, and the pivot one end of rotor is mobile to be inserted and is established on the upper end cover, the pivot other end of rotor passes the impeller seat and connects the impeller, the impeller is established to impeller cover lid and is sealed up the impeller on the impeller seat, be equipped with on the single shell inner wall with the corresponding ring channel of impeller seat, be equipped with spacing step on the outer wall of impeller seat, this spacing step is inserted in the inner of this ring channel.

2. The single housing fuel pump of claim 1, wherein: the single shell is provided with an inserting groove corresponding to the upper end cover, the outer wall of the upper end cover is provided with an inserting step, and the inserting step is inserted into the single shell and matched with the inserting groove.

3. The single housing fuel pump of claim 1, wherein: the single shell is an iron pipe body.