CN216034321U

CN216034321U - Automobile air treatment unit with one-way valve and oil filter

Info

Publication number: CN216034321U
Application number: CN202122523107.2U
Authority: CN
Inventors: 张永平; 蔡志龙
Original assignee: Zhejiang Haipu Auto Parts Co ltd
Current assignee: Zhejiang Haipu Auto Parts Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-03-15
Anticipated expiration: 2031-10-20

Abstract

The utility model relates to an automobile air processing unit with a check valve and oil filtering, which comprises a cylindrical upper shell with an opening at the bottom and a hollow lower shell, wherein an air inlet is formed at one side of the lower shell, an air outlet is formed at the bottom of the lower shell, a clamping groove is formed at the top of the lower shell, a buckle matched with the clamping groove is formed at the bottom of the upper shell, an upper pressure limiting valve is fixedly installed at the top of the lower shell, an air passage is also formed in the lower shell, the air passage comprises a transverse part and a vertical part, one end of the transverse part is communicated with the air inlet, the other end of the transverse part is communicated with the bottom end of the vertical part, the top end of the vertical part extends to the periphery of the upper pressure limiting valve and forms an air port, and the check valve is arranged at the position of the transverse part, which is close to the vertical part. According to the utility model, the oil filtering device is added before air passes through the filter element, so that the service life of the filter element is prolonged, and the one-way valve is additionally arranged between the air passage and the air inlet, so that the gas backflow phenomenon is effectively avoided.

Description

Automobile air treatment unit with one-way valve and oil filter

Technical Field

The utility model relates to the field of automobile brake systems, in particular to an automobile air treatment unit with a one-way valve and oil filter.

Background

The air treatment unit in a motor vehicle primarily dries and cleans the compressed air supplied by the air compressor and controls the air pressure in the brake line.

But because have the petrol granule in the air often, lead to the filter core to pollute very fast, life is short, and current air handling unit is giving the atmospheric pressure when lower, produces gaseous backward flow easily, influences driving safety, and the complicated part of structure is too much, and the installation is very loaded down with trivial details, and the volume is also great.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automobile air treatment unit with a one-way valve and oil filter, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an automobile air processing unit with a check valve and oil filtering comprises a cylindrical upper shell with an opening at the bottom and a hollow lower shell, wherein an air inlet is formed at one side of the lower shell, an air outlet is formed at the bottom, a clamping groove is formed at the top, a buckle matched with the clamping groove is formed at the bottom of the upper shell, an upper pressure limiting valve is fixedly arranged at the top of the lower shell, an air passage is further formed in the lower shell, the air passage comprises a transverse part and a vertical part, one end of the transverse part is communicated with the air inlet, the other end of the transverse part is communicated with the bottom end of the vertical part, the top end of the vertical part extends to the periphery of the upper pressure limiting valve to form an air port, the check valve is further arranged at the position of the transverse part close to the vertical part, the transverse part is communicated with the vertical part after passing through the check valve, a fixed spring is fixedly arranged at the top in the upper shell, an air processing assembly is fixed at the bottom of the fixed spring, one end of the upper pressure limiting valve is communicated with the bottom of the air processing assembly, the other end is butted with the hollow part of the lower shell and is communicated with the air outlet, an oil filtering device is fixedly mounted on the lower part of the air treatment assembly, the air treatment assembly comprises an inner shell and a filter element, openings are formed in the top and the bottom of the inner shell, the bottom opening of the inner shell is butted with the upper limiting pressure valve, the inner shell comprises a top cover, an upper body and a lower body, the top cover is fixed at the top end of the upper body and fixed with the bottom end of the fixed spring, the upper body and the lower body are cylindrical and butted up and down, and the diameter of the upper body is larger than that of the lower body.

Preferably, an annular oil filter device is fixed to an outer edge of the upper body of the inner casing.

Preferably, the gaps between the outer wall of the upper body of the inner shell and the outer wall of the oil filtering device and the inner wall of the upper shell are both 0.5 mm-3 mm.

Preferably, the lower case is further provided with a sealing valve at a position on the opposite side to the air inlet, and the sealing valve extends to the bottom end of the vertical portion of the air path.

Preferably, the lower shell is further provided with a lower limit pressure valve at the position of the air outlet.

Preferably, one side of the lower shell positioned at the air outlet is also provided with a pressure regulating valve communicated with the air outlet.

The utility model aims to overcome the defects of the prior art, designs an automobile air treatment unit with a one-way valve and oil filtering, prolongs the service life of a filter element by adding an oil filtering device before air passes through the filter element, effectively avoids the gas backflow phenomenon by additionally arranging the one-way valve between an air passage and an air inlet, ensures simple and convenient assembly and has a more compact structure, thereby better utilizing the limited space in an engine room.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a sectional view taken along line B-B of fig. 2 with the upper housing removed.

In the figure: the arrow direction is the gas movement direction, 1, upper housing, 2, lower housing, 3, air inlet, 4, air outlet, 5, clamping groove, 6, buckle, 7, upper limit pressure valve, 8, air flue, 9, check valve, 10, fixed spring, 11, oil filter device, 12, inner shell, 13, filter element, 14, top cover, 15, seal valve, 16, lower limit pressure valve, 17, pressure regulating valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an automobile air processing unit with a check valve and oil filtering comprises a cylindrical upper shell 1 with an opening at the bottom and a hollow lower shell 2, an air inlet 3 is formed at one side of the lower shell 2, an air outlet 4 is formed at the bottom, a clamping groove 5 is formed at the top, a buckle 6 matched with the clamping groove 5 is formed at the bottom of the upper shell 1, an upper pressure limiting valve 7 is fixedly installed at the top of the lower shell 2, an air passage 8 is formed in the lower shell 2, the air passage 8 comprises a transverse part and a vertical part, one end of the transverse part is communicated with the air inlet 3, the other end of the transverse part is communicated with the bottom end of the vertical part, the top end of the vertical part extends to the periphery of the upper pressure limiting valve 7 and forms an air port, a check valve 9 is also arranged at the position of the transverse part close to the vertical part, the transverse part is communicated with the vertical part after passing through the check valve 9, a fixed spring 10 is fixedly installed at the top in the upper shell 1, the bottom of fixed spring 10 is fixed with the air treatment component, the one end of last limit valve 7 communicates with the bottom of air treatment component, the other end docks with the hollow portion of lower casing 2, and communicate with gas outlet 4, the lower part of air treatment component still fixed mounting has oil filter 11, the air treatment component includes inner shell 12 and filter core 13, the top and the bottom of inner shell 12 all are equipped with the opening, the bottom opening of inner shell 12 docks with last limit valve 7, inner shell 12 includes that top central point department has seted up open-ended top cap 14, upper part of the body and lower part of the body, top cap 14 is fixed in the upper part of the body top and with the bottom mounting of fixed spring 10, upper part of the body and lower part of the body all are cylindric and dock from top to bottom, the diameter of upper part of the body is greater than the diameter of the lower part of the body.

An annular oil filter device 11 is fixed to an outer edge of the upper body of the inner casing 12.

The gaps between the outer wall of the upper body of the inner shell 12 and the outer wall of the oil filtering device 11 and the inner wall of the upper shell 1 are 0.5 mm-3 mm.

The lower casing 2 is also provided with a sealing valve 14 at a position on the opposite side to the gas inlet 3, and the sealing valve 14 extends to the bottom end of the vertical portion of the gas duct.

The lower housing 2 is also provided with a lower limit pressure valve 14 at the position of the air outlet 4.

And a pressure regulating valve 15 communicated with the air outlet 4 is also arranged on one side of the lower shell 2 positioned at the air outlet 4.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take car air treatment unit of check valve and oil strain which characterized in that: including being the last casing of bottom open-ended cask form and being hollow casing down, one side shaping of casing has air inlet, bottom shaping to have gas outlet, top shaping to have the draw-in groove down, the bottom shaping of going up the casing has the buckle that agrees with mutually with the draw-in groove, the top of casing is fixed mounting still down has the upper limit pressure valve down, the internal shaping of going back of inferior valve has the air flue, the air flue includes horizontal portion and vertical portion, the one end and the air inlet intercommunication of horizontal portion, the bottom intercommunication of the other end and vertical portion, the top of vertical portion extends to the surrounding of supreme pressure limiting valve and forms the gas port, the position department that horizontal portion is close to vertical portion still is provided with the check valve, horizontal portion communicates with vertical portion after passing through the check valve, top fixed mounting in the last casing has fixed spring, fixed spring's bottom is fixed with air treatment component, the one end and the bottom intercommunication of air treatment component of upper limit pressure valve, the other end and the hollow portion butt joint of casing down, and communicate with the gas outlet, there is the oil strain device air treatment unit's lower part still fixed mounting, air treatment unit includes inner shell and filter core, the top and the bottom of inner shell all are equipped with the opening, the bottom opening and the last backpressure valve butt joint of inner shell, the inner shell includes that top central point puts the department and has seted up open-ended top cap, upper part of the body and the lower part of the body, and the top cap is fixed in the upper part of the body top and with fixed spring's bottom mounting, and the upper part of the body and the lower part of the body all are cylindric and butt joint from top to bottom, and the diameter of the upper part of the body is greater than the diameter of the lower part of the body.

2. The automobile air treatment unit with the one-way valve and the filtered oil of claim 1, wherein: and an annular oil filtering device is fixed at the outer edge of the upper body of the inner shell.

3. The automobile air treatment unit with the one-way valve and the filtered oil of claim 2, wherein: the gaps between the outer wall of the upper body of the inner shell and the outer wall of the oil filtering device and the inner wall of the upper shell are 0.5-3 mm.

4. The automobile air treatment unit with the one-way valve and the filtered oil of claim 1, wherein: and a sealing valve is also arranged at the position of the lower shell, which is opposite to the air inlet, and the sealing valve extends to the bottom end of the vertical part of the air passage.

5. The automobile air treatment unit with the one-way valve and the filtered oil of claim 1, wherein: the lower shell body is also provided with a lower limit pressure valve at the position of the air outlet.

6. The automobile air treatment unit with the one-way valve and the filtered oil of claim 1, wherein: and one side of the lower shell positioned at the air outlet is also provided with a pressure regulating valve communicated with the air outlet.