CN212027902U

CN212027902U - Structure of suction filter

Info

Publication number: CN212027902U
Application number: CN202020739952.6U
Authority: CN
Inventors: 皮埃尔·布雷; 陈宁; 达尼埃尔布鲁塞斯
Original assignee: Mecaplast Auto Parts Shanghai Co ltd
Current assignee: Mecaplast Auto Parts Shanghai Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-11-27
Anticipated expiration: 2030-05-08

Abstract

The utility model relates to a structure of a strainer, which comprises an upper pipe body, a lower pipe body and a filter screen fixed between the upper pipe body and the lower pipe body; the bottom of the upper pipe body is provided with an upper connecting port, the top of the lower pipe body is provided with a lower connecting port, the lower connecting port is provided with a bellmouth, the upper connecting port is provided with a socket matched with the bellmouth, and the length of the socket is greater than the depth of the bellmouth; the upper connecting port is provided with a flange at the rear end of the socket, an O-shaped sealing ring is fixed on the peripheral surface of the socket, and the socket is inserted into the socket; the lower connecting port is also evenly provided with at least three clamping tongues made of elastic materials, each clamping tongue is provided with a rotating shaft perpendicular to the opening direction of the socket and rotates around the rotating shaft, and the tail ends of the clamping tongues can be selectively clamped on the flanges. The advantages are that: the clamping tongue type fixing device is fixed, the sealing ring is used for sealing, the connecting strength is high, the sealing effect is good, the filter screen can be sufficiently clamped and fixed, and the design structure is simple and firm in connection.

Description

Structure of suction filter

Technical Field

The utility model relates to an automobile engine technical field especially relates to a structure of suction cleaner.

Background

The oil strainer is used for conveying oil in an oil pan to an oil pump, filtering impurities such as debris and the like so as to protect the oil pump and reduce or eliminate air entering a lubricating system, and is an important part integrating dual functions of oil conveying and protection in an engine system. The oil strainer is mainly classified into a metal oil strainer and a plastic oil strainer according to the material thereof. Because the plasticity of the plastic material is stronger, the shape and the structure of the plastic engine oil strainer are more flexible, and can be freely adjusted according to the layout of an engine system and the structures of peripheral parts. Despite the use of plastic materials, plastic oil strainer has comparable strength, high temperature resistance, and corrosion resistance to metal oil strainers. And what is more important is that the plastic engine oil strainer can greatly reduce the mass of the strainer, meet the requirement of light weight and reduce the manufacturing cost.

Referring to fig. 1, in the prior art, a plastic strainer generally comprises an upper pipe body 1, a lower pipe body 2, and a filtering net 3 fixed between the upper pipe body and the lower pipe body; the bottom of the upper pipe body 1 is embedded into the top of the lower pipe body 2 and welded, so that the upper pipe body and the lower pipe body are fixed. The filter screen 3 is clamped and fixed by the end surfaces of the upper pipe body 1 and the lower pipe body 2. However, this welding process has the following problems:

1. because of the adoption of plastic parts, the product is easy to deform, thereby causing cold joint, not only reducing the connection strength,

but also easily causes problems such as leakage.

2. Limited by materials and structures, the upper shell and the lower shell are stressed after being welded due to deformation, the welding process is adopted for connection, so that the upper shell and the lower shell cannot apply enough clamping force to the filter screen after being welded, the filter screen cannot be fixed firmly, and the filter screen cannot be clamped effectively to influence the filtering effect.

3. As the welding process is adopted, impurities such as flash and the like are inevitably generated, and secondary pollution is caused.

The traditional welding connection mode of the plastic strainer is urgently needed to be changed. The structure of the strainer of the present invention has not been reported.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a purpose is to the structural shortcoming of prior art, provides a structure of strainer, adopts the block tongue formula fixed to adopt the sealing washer to seal, its joint strength is high, sealed effectual, can carry out abundant centre gripping fixed to the filter screen moreover, this design simple structure, firm in connection. And the processing technology steps or parts are not increased, and the production efficiency is improved.

In order to achieve the above object, an embodiment of the present invention provides a strainer structure, which is realized by the following technical solution:

the structure of the suction filter comprises an upper pipe body, a lower pipe body and a filter screen fixed between the upper pipe body and the lower pipe body; the bottom of going up the body is provided with connection port, lower body top be provided with last connection port seal fixed complex lower connection port, its characterized in that: the lower connecting port is provided with a socket, the upper connecting port is provided with a socket matched with the socket, and the length of the socket is greater than the depth of the socket; the upper connecting port is provided with an annular flange at the rear end of the socket along the circumferential direction, an o-shaped sealing ring is further fixed on the outer circumferential surface of the socket, and the socket is inserted into the socket, so that the inner circumferential surface of the socket presses the o-shaped sealing ring; the lower connecting port is also uniformly provided with at least three clamping tongues made of elastic materials, the clamping tongues are provided with rotating shafts perpendicular to the opening direction of the bellmouth and rotate around the rotating shafts, and the tail ends of the clamping tongues can be selectively clamped on the flanges and press the surfaces of the flanges under the non-external force state.

The outer peripheral surface of the socket is provided with an annular groove, and the o-shaped sealing ring is sleeved in the annular groove and fixed.

The outer edge of the filter screen is clamped between the end face of the socket and the bottom of the socket.

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

the clamping tongue type fixing is adopted, the sealing ring is adopted for sealing, the connecting strength is high, the sealing effect is good, and the technical indexes that the connecting strength of the upper shell and the lower shell is more than 880N and the fatigue durability is 2000 ten thousand times of vibration at the temperature of-40 ℃/20 ℃/150 ℃ can be achieved.

The upper pipe body and the lower pipe body can fully clamp and fix the filter screen, so that bypass is avoided.

The design structure is simple, and the connection is firm. And the processing technology steps or parts are not increased, and the production efficiency is improved.

Drawings

The above features and advantages of the present invention will become more apparent and readily appreciated from the following description of the exemplary embodiments thereof taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic structural view of a conventional strainer;

FIG. 2 is a schematic structural view of a strainer according to an embodiment of the present invention;

FIG. 3 is an exploded view of a strainer according to an embodiment of the present invention;

fig. 4 is a sectional view of a strainer according to an embodiment of the present invention.

Detailed Description

The invention will be described in further detail below with reference to the accompanying drawings so as to facilitate understanding by those skilled in the art:

as shown in fig. 1 to 4, the present embodiment provides a structure of a strainer, which also includes an upper pipe body 1, a lower pipe body 2, and a filter net 3 fixed between the upper pipe body 1 and the lower pipe body 2. The bottom of the upper pipe body 1 is provided with an upper connecting port, and the top of the lower pipe body 2 is provided with a lower connecting port which is in sealing fixed fit with the upper connecting port.

Different from the prior art, the method comprises the following steps:

the lower connection port has a socket 21 and the upper connection port has a socket 11 fitted with the socket 21, the socket 11 having a length greater than the depth of the socket 21.

The upper connection port is provided with an annular flange 12 at the rear end of the socket 11 along the circumferential direction thereof, the outer circumferential surface of the socket 11 is provided with an annular groove 111, and an o-ring 4 is fitted into the annular groove 111 and fixed.

The socket 11 is inserted into the socket 21 and presses the o-ring 4 against the inner peripheral surface of the socket 21, thereby sealing the upper pipe 1 and the lower pipe 2.

The lower connecting port is also evenly provided with at least three clamping tongues 22, and the clamping tongues 22 are made of elastic materials. The latch 22 has a rotation axis perpendicular to the opening direction of the socket 21 (i.e. the direction in which the socket 21 is inserted into the socket 11), and rotates around the rotation axis, so that the end of the latch 22 can be selectively clamped on the flange 12 and press the surface of the flange 12 in a non-external state. Thereby achieving a fixed connection between the upper pipe body 1 and the lower pipe body 2. In the present embodiment, the number of the latch 22 is three.

When the upper pipe body 1 and the lower pipe body 2 are fixed through the clamping tongues, the length of the socket 11 is slightly larger than the depth of the socket 21, so that the outer edge of the filter screen 3 is firmly pressed at the bottom of the socket 21 by the end surface of the socket 11, namely, the filter screen 3 is reliably clamped and fixed by the upper pipe body 1 and the lower pipe body 2.

It should be noted that the above is a detailed description of the present invention, and it should not be considered that the present invention is limited to the specific embodiments, and those skilled in the art can make various modifications and variations on the above embodiments without departing from the scope of the present invention.

Claims

1. The structure of the suction filter comprises an upper pipe body, a lower pipe body and a filter screen fixed between the upper pipe body and the lower pipe body; the bottom of going up the body is provided with connection port, lower body top be provided with last connection port seal fixed complex lower connection port, its characterized in that: the lower connecting port is provided with a socket, the upper connecting port is provided with a socket matched with the socket, and the length of the socket is greater than the depth of the socket; the upper connecting port is provided with an annular flange at the rear end of the socket along the circumferential direction, an o-shaped sealing ring is further fixed on the outer circumferential surface of the socket, and the socket is inserted into the socket, so that the inner circumferential surface of the socket presses the o-shaped sealing ring; the lower connecting port is also uniformly provided with at least three clamping tongues made of elastic materials, the clamping tongues are provided with rotating shafts perpendicular to the opening direction of the bellmouth and rotate around the rotating shafts, and the tail ends of the clamping tongues can be selectively clamped on the flanges and press the surfaces of the flanges under the non-external force state.

2. A strainer structure according to claim 1, wherein: the outer peripheral surface of the socket is provided with an annular groove, and the o-shaped sealing ring is sleeved in the annular groove and fixed.

3. A strainer structure according to claim 1, wherein: the outer edge of the filter screen is clamped between the end face of the socket and the bottom of the socket.