CN213775570U

CN213775570U - Brushless short fuel pump

Info

Publication number: CN213775570U
Application number: CN202021928821.9U
Authority: CN
Inventors: 王小平; 曹万; 洪鹏; 梁世豪; 施涛
Original assignee: Wuhan Finemems Inc
Current assignee: Wuhan Finemems Inc
Priority date: 2020-09-07
Filing date: 2020-09-07
Publication date: 2021-07-23
Anticipated expiration: 2030-09-07

Abstract

The utility model discloses a brushless short fuel pump, which comprises fixed blocks, wherein a fixed plate is arranged between the two fixed blocks, the lower end of the fixed plate is connected with a fixed ring with a U-shaped section and an upward opening, the inner side of the fixed ring is connected with a support ring with a U-shaped section and an upward opening through an elastic component, and the inner side of the support ring is attached to the outer wall of the fuel pump body; one fixing block is connected with the fixing plate through a telescopic rod, and the other fixing block is connected with the fixing plate through a lifting assembly. The utility model discloses mainly fix the fuel pump body on the fixed plate through solid fixed ring, and solid fixed ring's internally mounted has the support ring, and is provided with elastic component between support ring and the solid fixed ring, when the vehicle goes to jolt, utilizes elastic component's resilience to play the shock attenuation effect to the fuel pump body, reduces the range of rocking of this internal oil of fuel pump to a certain extent to reduce the static that produces because of the friction.

Description

Brushless short fuel pump

Technical Field

The utility model relates to a fuel pump technical field specifically is brushless short type fuel pump.

Background

The fuel pump is a power pump for providing fuel with certain flow and pressure for an engine, the fuel pumps on the market at present are divided into a mechanical brush electric fuel pump and a brushless fuel pump, and in the using process of the brush electric fuel pump, because a commutator made of carbon element and copper element is adopted, carbon is tightly attached to the commutator under the action of a spring, in the operating process, great abrasion is inevitably generated and limited by the brush structure of the commutator, great requirements are made on the height of a pump core, the commutator cannot be matched with a dwarfing state fuel tank, and because the brushless fuel pump is free of the brush, all built-in circuits and coil windings are isolated from liquid, the built-in circuits and coil windings cannot be connected with electricity, the service life is long, but when the brushless fuel pump is installed with an automobile, the fuel pump is directly fixed with the automobile body through bolts, when the automobile runs and jolts, the oil in the pump shakes, so that the oil in the pump rubs against the inner wall of the pump to generate a large amount of static electricity, causing certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a brushless short type fuel pump, through the utility model discloses a brushless short type fuel pump can solve current brushless fuel pump when with the car installation, directly fixed through bolt and automobile body, when the car goes to appear jolting, oil in the pump can appear rocking, makes oil in the pump and pump inner wall appear rubbing and produce a large amount of static, causes the problem of certain potential safety hazard.

In order to achieve the above object, the utility model provides a following technical scheme:

a brushless short fuel pump comprises two fixed blocks, wherein a fixed plate is arranged between the two fixed blocks, the lower end of the fixed plate is connected with a fixed ring with a U-shaped section and an upward opening, the inner side of the fixed ring is connected with a support ring with a U-shaped section and an upward opening through an elastic assembly, and the inner side of the support ring is attached to the outer wall of a fuel pump body;

one fixing block is connected with the fixing plate through a telescopic rod, and the other fixing block is connected with the fixing plate through a lifting assembly.

Preferably, the elastic assembly comprises at least three compression springs connected between the fixing ring and the support ring.

Preferably, it is characterized in that: the fixing ring is characterized in that two first flanges are symmetrically arranged at one end of the fixing ring, two second flanges are symmetrically arranged at one end of the support ring, a notch for the second flanges to be placed in is formed in one side of the first flanges, and the other side of the first flanges is fixed with the fixing plate through bolts.

Preferably, the other side of the support ring is provided with five fixing rods, three of the fixing rods are located in the middle of the support ring, the other two fixing rods are respectively located on one side of the second flanges, the compression spring is sleeved on the fixing rods, and through holes for inserting one ends of the fixing rods are respectively formed in one side of the fixing ring and one side of the first flanges.

Preferably, the lifting assembly comprises a nut, a screw and a bearing;

one end of the fixing plate is rotatably connected with the screw rod through the bearing, one end of the screw rod is fixed with the screw cap, and the other end of the screw rod is in threaded connection with one fixing block.

Preferably, a handle is fixed on the outer wall of the nut, an anti-slip sleeve is sleeved on the outer wall of the handle, the inner wall of the bearing inner ring is fixed with the outer wall of the screw, and a through hole is formed in one side of the fixing plate for the bearing outer ring to be embedded and fixed on.

Preferably, four mounting holes are formed in one side of each fixing block at equal angles, a screw hole is formed in one side of one fixing block, one end of the screw rod is connected with the screw hole in a threaded mode, and one side of the other fixing block is fixed to one end of the telescopic rod.

Preferably, the telescopic rod comprises a sleeve, an inner rod and a stop block, the inner rod and the stop block are respectively located inside the sleeve, one end of the inner rod is fixed on one side of the stop block, and a through hole for the other end of the inner rod to pass through is formed in one end of the sleeve.

Preferably, a rubber layer is formed between the inner side of the support ring and the outer wall of the fuel pump body.

Preferably, the support ring is fitted with a mass spring resonance system.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model mainly fixes the fuel pump body on the fixing plate through the fixing ring, the fixing ring is internally provided with the support ring, and the compression spring is arranged between the support ring and the fixing ring, when the vehicle runs and jolts, the rebound resilience of the compression spring is utilized to play a role in damping the fuel pump body, so that the shaking amplitude of the oil in the fuel pump body is reduced to a certain extent, and the static electricity generated by friction is reduced;

the utility model discloses the fixed plate that sets up passes through the bearing and fixes with the screw rod, and screw rod and fixed block threaded connection, the rotatory handle of accessible, the handle drives the screw rod and rotates, is convenient for adjust the height of fuel pump body installation, improves to a certain extent and dwarfing the matching nature of oil tank.

Drawings

FIG. 1 is a cross-sectional view of one embodiment of a brushless low profile fuel pump of the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a bottom view of FIG. 1;

fig. 4 is a structural view of the telescopic rod.

In the figure: 1. a fixed block; 2. a telescopic rod; 3. a fixing plate; 4. a first flanging; 5. second flanging; 6. A fuel pump body; 7. a support ring; 8. a fixing ring; 9. fixing the rod; 10. a compression spring; 11. a screw; 12. a bearing; 13. a nut; 14. a handle; 15. mounting holes; 16. a sleeve; 17. an inner rod; 18. And a stop block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The same reference numbers in different drawings identify the same or similar elements; it should also be understood that terms such as "first," "second," "third," "upper," "lower," "front," "rear," "inner," "outer," "end," "portion," "section," "width," "thickness," "zone," and the like, may be used solely for convenience in reference to the figures and are not intended to limit the invention.

Referring to fig. 1-4, the present invention provides a technical solution: brushless short type fuel pump, including fixed block 1, the horizontally erects fixed plate 3 between two fixed blocks 1, and the lower extreme of fixed plate 3 is the U-shaped through the cross-section and the ascending solid fixed ring 8 of opening is fixed with fuel pump body 6, and fuel pump body 6 is brushless fuel pump.

Referring to fig. 1 and 2, a further arrangement between the retainer ring 8 and the fuel pump body 6 is U-shaped in cross-section and opens upwardly with a support ring 7. Two ends of the opening of the fixing ring 8 are respectively provided with a first flanging 4 extending towards the horizontal direction, and two ends of the support ring 7 are respectively provided with two second flanging 5 extending towards the horizontal direction. The two first flanges 4 and the two second flanges 5 are symmetrical with respect to a center line passing through the center of the fixing ring 8 and perpendicular to the fixing plate 3 in the vertical direction.

In the embodiment, the first flange 4 is provided with a notch for the second flange 5 to be placed in, the other side of the first flange 4 is fixed with the fixing plate 3 through a bolt, and the fixing ring 8 is detachably connected to facilitate installation and maintenance of the fuel pump body 6.

Further, one side of support ring 7 and the outer wall laminating of fuel pump body 6, be provided with compression spring 10 between support ring 7 and the solid fixed ring 8, the opposite side of support ring 7 is provided with five dead levers 9, wherein three dead lever 9 is located the middle part of support ring 7, two other dead levers 9 are located two second turn-ups 5's one side respectively, compression spring 10 is located and cup joints on dead lever 9, the one end male through-hole that supplies dead lever 9 is seted up respectively to one side of solid fixed ring 8 and one side of first turn-ups 4, dead lever 9 can restrict compression spring 10 and only take place the compression in the length direction along dead lever 9, prevent that compression spring 10 from appearing the deformation of non-vertical direction.

In this embodiment, the one end of fixed plate 3 is rotated through bearing 12 and is connected with screw rod 11, the one end of screw rod 11 is fixed with nut 13, the outer wall of nut 13 is fixed with handle 14, the outer wall cover of handle 14 has anti-skidding cover, bearing 12 inner ring inner wall is fixed with the outer wall of screw rod 11, one side of fixed plate 3 is seted up and is supplied bearing 12 outer loop outer wall to inlay the dress and be fixed with the through-hole, can drive screw rod 11 through 14 rotatory nut 13 of handle and rotate, screw rod 11 drives fixed plate 3 and removes, be convenient for adjust the mounting height of fuel pump body 6, be convenient for be suitable for the use of not co-altitude oil tank.

Screw rod 11's the other end and 1 threaded connection of a fixed block in this embodiment, another fixed block 1 is fixed through the other end of telescopic link 2 with fixed plate 3, angle such as one side of fixed block 1 is provided with four mounting holes 15, the one end spiro union that supplies screw rod 11 is seted up to one side of a fixed block 1 has the screw, one side of another fixed block 1 is fixed with the one end of telescopic link 2, telescopic link 2 can play limiting displacement, avoid in screw rod 11 pivoted, fixed plate 3 rotates along with screw rod 11's rotation.

Further, the telescopic rod 2 comprises a sleeve 16, an inner rod 17 and a stop block 18, the inner rod 17 and the stop block 18 are respectively located inside the sleeve 16, one end of the inner rod 17 on one side of the stop block 18 is fixed, and a through hole for the other end of the inner rod 17 to pass through is formed in one end of the sleeve 16.

In the present embodiment, a rubber layer for damping is formed between the inner side of the support ring 7 and the outer wall of the fuel pump body 6. A mass spring resonance system is installed on the support ring 7, and is used for absorbing elastic potential energy and reducing the vibration amplitude and frequency of the support ring 7 when the support ring 7 vibrates relative to the fixing ring.

The working principle is as follows: the two fixing blocks 1 are respectively installed with the vehicle body through the matching of bolts and the installation holes 15. The fuel pump body 6 is mounted on the fixing plate 3 by a fixing ring 8, and a support ring 7 is mounted on the inside of the fixing ring 8. A plurality of compression springs 10 are arranged between the support ring 7 and the fixing ring 8, when the vehicle runs in bump, the rebound resilience of the compression springs 10 is utilized to achieve a damping effect on the fuel pump body 6, so that the shaking amplitude of oil in the fuel pump body is reduced to a certain extent, and static electricity generated due to friction is reduced; in addition, the fixing plate 3 is fixed with the screw rod 11 through the bearing 12, the screw rod 11 is in threaded connection with the fixing block 1, the handle 14 can be rotated, the screw rod 11 drives the screw rod 11 to rotate, the screw rod 11 drives the fixing plate 3 to move, the fixing plate 3 drives the fuel pump body 6 to move, the installation height of the fuel pump body 6 can be conveniently adjusted, and the matching performance with a dwarfing fuel tank is improved to a certain extent.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a brushless short type fuel pump, includes two fixed blocks (1) and fuel pump body, its characterized in that: a fixing plate (3) is arranged between the two fixing blocks (1), the lower end of the fixing plate (3) is connected with a fixing ring (8) which is U-shaped in cross section and upward in opening, the inner side of the fixing ring (8) is connected with a supporting ring (7) which is U-shaped in cross section and upward in opening through an elastic assembly, and the inner side of the supporting ring (7) is attached to the outer wall of the fuel pump body (6);

one fixing block (1) is connected with the fixing plate (3) through a telescopic rod, and the other fixing block (1) is connected with the fixing plate (3) through a lifting assembly.

2. The brushless low-profile fuel pump of claim 1,

the elastic assembly comprises at least three compression springs (10), the compression springs (10) being connected between the fixing ring (8) and the support ring (7).

3. The brushless low-profile fuel pump of claim 2, wherein: the one end symmetry of solid fixed ring (8) is provided with two first turn-ups (4), the one end symmetry of support ring (7) is provided with two second turn-ups (5), the confession has been seted up to one side of first turn-ups (4) the breach that second turn-ups (5) were put into, the opposite side of first turn-ups (4) pass through the bolt with fixed plate (3) are fixed.

4. The brushless low-profile fuel pump of claim 3, wherein: the opposite side of support ring (7) is provided with five dead levers (9), and wherein three dead lever (9) are located the middle part of support ring (7), two in addition dead lever (9) are located two respectively one side of second turn-ups (5), compression spring (10) are located cup joint on dead lever (9), the confession is seted up respectively to one side of solid fixed ring (8) and one side of first turn-ups (4) the one end male through-hole of dead lever (9).

5. The brushless low-profile fuel pump of claim 1,

the lifting assembly comprises a nut (13), a screw (11) and a bearing (12);

one end of the fixing plate (3) is rotatably connected with the screw rod (11) through the bearing (12), one end of the screw rod (11) is fixed with the screw cap (13), and the other end of the screw rod (11) is in threaded connection with the fixing block (1).

6. The brushless low-profile fuel pump of claim 5, wherein: the outer wall of nut (13) is fixed with handle (14), the outer wall cover of handle (14) has anti-skidding cover, bearing (12) inner ring inner wall with the outer wall of screw rod (11) is fixed, one side of fixed plate (3) is seted up and is supplied bearing (12) outer loop outer wall inlays to be adorned and is fixed with the through-hole.

7. The brushless low-profile fuel pump of claim 5, wherein: the equal-angle four-way fixing device is characterized in that four mounting holes (15) are formed in one side of the fixing block (1), one fixing block (1) is provided with a screw hole for screwing one end of the screw rod (11), and the other fixing block (1) is fixed to one end of the telescopic rod (2).

8. The brushless low-profile fuel pump of claim 1, wherein: the telescopic rod (2) comprises a sleeve (16), an inner rod (17) and a stop block (18), the inner rod (17) and the stop block (18) are respectively located inside the sleeve (16), one end of the inner rod (17) is fixed to one side of the stop block (18), and a through hole for the other end of the inner rod (17) to pass through is formed in one end of the sleeve (16).

9. The brushless low-profile fuel pump of claim 1, wherein:

a rubber layer is formed between the inner side of the support ring (7) and the outer wall of the fuel pump body (6).

10. The brushless low-profile fuel pump of claim 1, wherein:

the support ring (7) is provided with a mass spring resonance system.