CN220470092U - High-power fuel pump core convenient to shock attenuation - Google Patents

Abstract

The utility model relates to the technical field of fuel pump cores, in particular to a high-power fuel pump core convenient for shock absorption, which comprises a shell, wherein an inner cavity is formed in the bottom end of the shell, a bottom sleeve is fixedly arranged in the middle of the inner cavity of the shell, a fixing sleeve is sleeved outside the bottom sleeve, and a pump core body is sleeved inside the fixing sleeve; the bottom fixedly connected with cassette of pump core body, fixed block is fixed to the inside bottom fixed mounting of fixed cover, be provided with the spring between fixed block and the cassette. According to the utility model, the pump core body is arranged at the top end of the inner cavity of the shell through the cooperation between the shell, the fixing sleeve, the pump core body, the elastic clamping head and the clamping buckle, then the fixing sleeve is sleeved outside the bottom end of the pump core body, after the fixing sleeve is sleeved, the fixing sleeve is pressed up, the clamping buckle at two sides of the top end of the fixing sleeve is clamped on the two elastic clamping heads, so that the operation is simple and convenient during the installation, and the fixing sleeve cannot fall off after the installation.

Description

High-power fuel pump core convenient to shock attenuation

Technical Field

The utility model relates to the technical field of fuel pump cores, in particular to a high-power fuel pump core convenient for shock absorption.

Background

The fuel pump is a technical term of the automobile accessory industry, is one of basic components of an electronic injection automobile fuel injection system, is positioned in an automobile fuel tank, works when the fuel pump is started and an engine runs, and when an ignition switch is still ON if the engine is stopped, the control module turns off the power supply of the fuel pump so as to avoid accidental ignition, and the fuel pump is used for sucking and pressurizing fuel from the fuel tank and then delivering the fuel to a fuel supply pipe and establishing certain fuel pressure in cooperation with a fuel pressure regulator.

The existing high-power fuel pump assembly adopts a mechanical vertical pressing enclasping type fixing method on a pump core fixing mode, so that the die cost is too high, the space is occupied, the space is wasted, the product looks attractive, the mechanism is complex, and the high-power fuel pump core convenient for shock absorption is provided.

Disclosure of Invention

The utility model aims to provide a high-power fuel pump core convenient for shock absorption so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a high-power fuel pump core convenient for shock absorption comprises

The inner cavity is formed in the bottom end of the shell, a bottom sleeve is fixedly arranged in the middle of the inner cavity of the shell, a fixed sleeve is sleeved outside the bottom sleeve, and a pump core body is sleeved inside the fixed sleeve;

the bottom end of the pump core body is fixedly connected with a clamping seat, a fixed block is fixedly arranged at the bottom end inside the fixed sleeve, and a spring is arranged between the fixed block and the clamping seat;

the shell is close to the equal fixedly connected with elasticity dop in both sides of end cover, the equal fixedly connected with buckle in the outside of top both sides of fixed cover, buckle and elasticity dop joint.

Preferably, one side of the top end of the pump core body is fixedly connected with an oil outlet nozzle, and a second sealing ring is sleeved outside the oil outlet nozzle;

preferably, the bottom end of the shell is fixedly connected with a connecting sleeve, and an external thread is arranged outside the connecting sleeve;

preferably, a clamping groove is annularly formed in the outer side of the top end of the shell, which is close to the connecting sleeve, and a first sealing ring is sleeved outside the clamping groove;

preferably, a plurality of reinforcing ribs are arranged on the outer side of the joint of the shell and the connecting sleeve;

preferably, the clamping seat is made of damping materials.

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

1. this high-power fuel pump core convenient to shock attenuation uses through the cooperation between shell, fixed cover, pump core body, elasticity dop and the buckle, installs the pump core body on the inside top that the shell is located the inner chamber, then cup joints fixed cover from the outside of pump core body bottom, cup joints the back, pushes up fixed cover, with the buckle joint on fixed cover top both sides on two elasticity dops, when the installation like this, easy and simple to handle, and after the fixed cover installation, can not drop.

2. This high-power fuel pump core convenient to shock attenuation uses through the cooperation between fixed cover, pump core body, cassette, fixed block and the spring, before using fixed cover to cup joint the pump core body, with the spring joint in the cassette of fixed cover bottom, then upward embolia fixed cover from the bottom outside of pump core body down, until the spring bottom cup joints on the fixed block of the inside bottom of fixed cover, after installing like this, the spring can not take place the displacement, and can play the purpose of shock attenuation through cassette and spring.

Drawings

FIG. 1 is a schematic overall elevational view of the present utility model;

FIG. 2 is a schematic diagram of the overall side view of the present utility model;

FIG. 3 is a schematic overall cross-sectional view of the present utility model;

fig. 4 is an enlarged schematic view of fig. 3 a in accordance with the present utility model.

In the figure: 1. a housing; 2. an inner cavity; 3. a bottom sleeve; 4. a fixed sleeve; 5. a pump core body; 6. a clamping seat; 7. a fixed block; 8. a spring; 9. an elastic chuck; 10. a buckle; 11. an oil outlet nozzle; 12. a second seal ring; 13. connecting sleeves; 14. an external thread; 15. a clamping groove; 16. a first seal ring; 17. reinforcing ribs.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the apparatus or elements in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model.

In the description of this patent, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the terms in this patent will be understood by those of ordinary skill in the art as the case may be.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a number" is two or more, unless explicitly defined otherwise.

As shown in fig. 1-4, the present utility model provides a technical solution:

the utility model provides a high-power fuel pump core convenient to shock attenuation, including shell 1, the inner chamber 2 has been seted up to the inside bottom of shell 1, shell 1 is located the middle part fixed mounting of inner chamber 2 has a cover 3, fixed cover 4 has been cup jointed to the outside of cover 3, pump core body 5 has been cup jointed to the inside of fixed cover 4, the both sides that shell 1 is close to cover 3 are all fixedly connected with elastic clamping head 9, the outside of the top both sides of fixed cover 4 is fixedly connected with buckle 10, buckle 10 and elastic clamping head 9 joint, when this device is installed, install pump core body 5 at shell 1 is located the inside top of inner chamber 2, then cup joint fixed cover 4 from the outside of pump core body 5 bottom, after cup joint, push up fixed cover 4, buckle 10 joint on two elastic clamping head 9 with fixed cover 4 top both sides, in this time of installation, easy and simple operation, and fixed cover 4 after installation, can not drop;

as shown in fig. 3, the bottom end of the pump core body 5 is fixedly connected with a clamping seat 6, the bottom end of the inside of the fixed sleeve 4 is fixedly provided with a fixed block 7, a spring 8 is arranged between the fixed block 7 and the clamping seat 6, the clamping seat 6 is made of damping materials, before the pump core body 5 is sleeved with the fixed sleeve 4, the spring 8 is clamped in the clamping seat 6 at the bottom end of the fixed sleeve 4, and then the fixed sleeve 4 is sleeved from bottom to top from the outside of the bottom end of the pump core body 5 until the bottom end of the spring 8 is sleeved on the fixed block 7 at the bottom end inside the fixed sleeve 4, so that after the pump core is installed, the spring 8 cannot displace, and the purpose of shock absorption can be achieved through the clamping seat 6 and the spring 8;

as shown in fig. 4, a nozzle 11 is fixedly connected to one side of the top end of the pump core body 5, a second sealing ring 12 is sleeved outside the nozzle 11, a clamping groove 15 is annularly formed in the outer side of the top end of the housing 1, which is close to the connecting sleeve 13, a first sealing ring 16 is sleeved outside the clamping groove 15, before the pump core body 5 is installed, the second sealing ring 12 is sleeved outside the nozzle 11 on one side of the top end of the pump core body 5, then the nozzle 11 with the second sealing ring 12 is clamped into a designated position inside the bottom end of the housing 1, and when the nozzle is connected by using an external thread 14, the first sealing ring 16 is sleeved in the clamping groove 15 at the top end of the external thread 14, so that a sealing effect can be achieved on a connecting position;

as shown in fig. 2, the bottom end of the shell 1 is fixedly connected with a connecting sleeve 13, external threads 14 are arranged outside the connecting sleeve 13, a plurality of reinforcing ribs 17 are arranged outside the connecting position of the shell 1 and the connecting sleeve 13, and the structural strength of the connecting position of the shell 1 and the connecting sleeve 13 can be improved by using the reinforcing ribs 17;

working principle: when the device is installed, the pump core body 5 is installed on the inner top end of the inner cavity 2 of the shell 1, then the fixed sleeve 4 is sleeved on the outer side of the bottom end of the pump core body 5, after the fixed sleeve 4 is sleeved, the buckles 10 on two sides of the top end of the fixed sleeve 4 are clamped on the two elastic clamping heads 9, so that the device is easy and convenient to operate when installed, the fixed sleeve 4 cannot fall off after being installed, the spring 8 is clamped in the clamping seat 6 at the bottom end of the fixed sleeve 4 before the fixed sleeve 4 is sleeved on the pump core body 5, then the fixed sleeve 4 is sleeved on the fixed block 7 from bottom to top from the outer side of the bottom end of the pump core body 5 until the bottom end of the spring 8 is sleeved on the inner bottom end of the fixed sleeve 4, after the device is installed, the spring 8 cannot displace, before the pump core body 5 is installed, the second sealing ring 12 is sleeved on the outer side of the oil outlet nozzle 11 with the second sealing ring 12 is clamped in the inner appointed position of the bottom end of the shell 1, and meanwhile when the external threads 14 are used for connection, the first sealing ring 16 is sleeved in the clamping groove 15 at the top of the outer thread 14.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. High-power fuel pump core convenient to shock attenuation, its characterized in that: comprising

The novel pump comprises a shell (1), wherein an inner cavity (2) is formed in the bottom end of the shell (1), a bottom sleeve (3) is fixedly arranged in the middle of the inner cavity (2) of the shell (1), a fixing sleeve (4) is sleeved outside the bottom sleeve (3), and a pump core body (5) is sleeved inside the fixing sleeve (4);

the bottom end of the pump core body (5) is fixedly connected with a clamping seat (6), a fixed block (7) is fixedly arranged at the inner bottom end of the fixed sleeve (4), and a spring (8) is arranged between the fixed block (7) and the clamping seat (6);

the shell (1) is close to the both sides of end cover (3) and all fixedly connected with elasticity dop (9), the outside all fixedly connected with buckle (10) in top both sides of fixed cover (4), buckle (10) and elasticity dop (9) joint.

2. The high power fuel pump core for facilitating shock absorption of claim 1, wherein: the pump core is characterized in that an oil outlet nozzle (11) is fixedly connected to one side of the top end of the pump core body (5), and a second sealing ring (12) is sleeved outside the oil outlet nozzle (11).

3. The high power fuel pump core for facilitating shock absorption of claim 1, wherein: the bottom end of the shell (1) is fixedly connected with a connecting sleeve (13), and external threads (14) are formed in the outer portion of the connecting sleeve (13).

4. A high power fuel pump core for facilitating shock absorption as set forth in claim 3, wherein: the clamping groove (15) is formed in the outer side of the top end of the shell (1) close to the connecting sleeve (13) in an annular mode, and a first sealing ring (16) is sleeved outside the clamping groove (15).

5. A high power fuel pump core for facilitating shock absorption as set forth in claim 3, wherein: a plurality of reinforcing ribs (17) are arranged on the outer side of the joint of the shell (1) and the connecting sleeve (13).

6. The high power fuel pump core for facilitating shock absorption of claim 1, wherein: the clamping seat (6) is made of damping materials.