CN210087502U - Heavily block empty filter in desert - Google Patents

Abstract

The utility model provides a heavily block desert air cleaner, including fine filtration portion and coarse filtration portion, be provided with the venthole on the fine filtration portion, be provided with the inlet port on the coarse filtration portion, fine filtration portion and coarse filtration portion's the inner chamber of the two communicate, fine filtration portion includes fine filter shell, safety filter core, main filter core and tail-hood; the tail cover is made of plastics and is connected with the fine filter shell in a buckle type structure. Adopt the utility model discloses an empty filter in desert easy dismounting, production efficiency are high, sealing performance is good, the dead weight is lighter.

Description

Heavily block empty filter in desert

Technical Field

The utility model relates to an automobile manufacturing technical field, especially an empty filter in heavy truck desert.

Background

The air filter used by the air intake system of the heavy truck (heavy truck) can be divided into a common air filter, a desert air filter and an oil bath type air filter, wherein the common air filter is commonly used by a highway vehicle, the desert air filter or the oil bath type air filter is commonly used by a non-highway vehicle, and the desert air filter is the most used air filter of the non-highway vehicle. As shown in fig. 1 and 2, in the structure of the desert air filter in the prior art, air enters a rough filtering part 1 ' from an air inlet 11 ', is filtered by the rough filtering part 1 ' and a fine filtering part 2 ', and then enters an engine from an air outlet 21 '. The fine filtering part 2 ' comprises a screw rod 3 ', a safety filter element 4 ', a main filter element 5 ', a tail cover 6 ', 2 nuts 7 ' and a thread cover 8 ', a support 22 ' is arranged at the air outlet end, the left end of the screw rod 3 ' is sleeved in a hole of the support 22 ', the left end of the safety filter element 4 ' is positioned by the support 22 ', and the right end of the safety filter element 4 ' is sleeved on the screw rod 3 ' and is fastened by the nuts 7 '; the left end of the main filter element 5 'is positioned by the support 22', and the right end is sleeved on the screw rod 3 'and is fastened by the nut 7'; the middle part of the tail cover 6 ' is sleeved on the screw rod 3 ' and is fastened by a thread cover 8 ', the left end surface of the periphery of the tail cover 6 ' is contacted with the right end surface of the filter element shell 23 ', and a sealing ring is arranged between the left end surface of the tail cover 6 ' and the right end surface of the filter element shell 23 '. When the structure is assembled, the nut needs to be screwed down by a tool for multiple times to realize the installation of the filter element, the installation wastes time and labor, and the production efficiency is low; the tail cover only has a fixed point in the center, and the pressing force of the periphery to the sealing ring is not uniform, so that poor sealing is easily caused, and the problems of water inlet and ash inlet of the desert air filter are caused. Meanwhile, the existing desert air filter is made of metal materials, and in the improvement of a light-weight structure, if a tail cover is changed into a plastic piece, the plastic tail cover is very easy to break in the screwing process and the normal use process of the threaded cover 8' by the mounting structure, so that the service life of the desert air filter is influenced.

SUMMERY OF THE UTILITY MODEL

To the problem in the background art, the utility model provides an empty filter in heavy truck desert to among the solution prior art, the empty filter in heavy truck desert installs and removes inconvenient, the production efficiency is low, sealed poor problem of effect.

The utility model aims at realizing through the technical scheme, it is including:

a heavy truck desert air filter comprises a fine filtering part and a coarse filtering part, wherein an air outlet is formed in the fine filtering part, an air inlet is formed in the coarse filtering part, inner cavities of the fine filtering part and the coarse filtering part are communicated, and the fine filtering part comprises a fine filtering shell, a safety filter element, a main filter element and a tail cover; the left end of the inner cavity of the fine filter shell is provided with the air outlet, the right end of the inner cavity of the fine filter shell is provided with a mounting hole, the inner end of the air outlet is provided with an annular bracket, the inner cavity of the annular bracket is coaxial with the air outlet, and the annular bracket is arranged at the left part of the inner cavity of the fine filter shell; the safety filter element consists of an installation section and a free section, the outer diameter of the installation section is smaller than that of the free section, a positioning surface is formed between the installation section and the free section, and the outer diameter of the installation section is matched with the inner diameter of the annular support; the mounting section is sleeved in an inner cavity of the annular support, and the positioning surface is in contact with the right end surface of the annular support; the left part of the main filter element is sleeved on the outer peripheral surface of the annular bracket, and the left end surface of the main filter element is contacted with the inner wall of the left side plate of the fine filtering shell; the outer end of the mounting hole is circumferentially provided with a flange; the outer peripheral surface of the tail cover is provided with a plurality of buckles which are uniformly arranged along the circumferential direction of the tail cover; the plurality of buckles are all clamped and sleeved on the turned edges; a sealing ring is arranged between the right end face of the flanging and the left end face of the tail cover; the right-hand member face of main filter core with the left end face contact of tail-hood, the right-hand member face of safety filter core and the contact of the right side inboard wall of main filter core.

As optimization, the arc frame that the inner chamber right-hand member of fine filtration shell was provided with, the arc frame sets up in the inner chamber lower part of fine filtration shell, the shape of arc frame with the external diameter of main filter core matches.

Preferably, the tail cover is made of plastics.

Due to the adoption of the technical scheme, the utility model discloses following advantage has: the safety filter element and the main filter element are fixed only by the tail cover and the fine filter shell without being fixed by nuts and screws, the installation and the disassembly are completed only by the tail cover, and the tail cover is fixed by the buckle which is simple and convenient to operate, so that the time and the labor are saved, and the production and maintenance efficiency is greatly improved; meanwhile, the tail cover is uniformly arranged by adopting a plurality of buckles, so that the pressing force on the sealing ring is uniform, and the sealing effect of the sealing ring is effectively improved; as optimization, the tail cover is made of plastic materials, the weight of the desert air filter is reduced, and the light weight of the whole desert air filter is facilitated.

Drawings

The drawings of the present invention are described below.

FIG. 1 is a schematic structural diagram of a desert air filter in the prior art;

FIG. 2 is a D-D view of FIG. 1;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a view A-A of FIG. 3;

FIG. 5 is a detail view of section B of FIG. 4;

fig. 6 is a detailed view of the portion C of fig. 4.

In the figure: 1. a fine filtering part; 2. a coarse filtration part; 11. fine filtering the shell; 12. a safety filter element; 13. a main filter element; 14. a tail cover; 15. an annular support; 16. a seal ring; 17. an arc-shaped frame; 101. an air outlet; 111. a left side plate; 112. flanging; 121. an installation section; 122. a free section; 123. positioning the surface; 131. a right side plate; 141. buckling; 201. an air inlet; 1', a rough filtering part; 2', a fine filtering part; 3', a screw; 4', a safety filter element; 5', a main filter element; 6', a tail cover; 7', a nut; 8', a threaded cap; 11', an air inlet; 21', an air outlet; 22', a support; 23' and a cartridge housing.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

The heavy-duty desert air filter shown in fig. 3 to fig. 6 comprises a fine filtering part 1 and a coarse filtering part 2, wherein the fine filtering part 1 is provided with an air outlet 101, the coarse filtering part 2 is provided with an air inlet 201, the fine filtering part 1 is communicated with the inner cavities of the coarse filtering part 2, and the fine filtering part 1 comprises a fine filtering shell 11, a safety filter element 12, a main filter element 13 and a tail cover 14; the air outlet 101 is arranged at the left end of the inner cavity of the fine filter shell 11, the mounting hole is arranged at the right end of the inner cavity of the fine filter shell, the annular support 15 is arranged at the inner end of the air outlet, the inner cavity of the annular support 15 is coaxial with the air outlet, and the annular support 15 is arranged at the left part of the inner cavity of the fine filter shell 11; the safety filter element 12 consists of an installation section 121 and a free section 122, the outer diameter of the installation section 121 is smaller than that of the free section 122, a positioning surface 123 is formed between the installation section 121 and the free section 122, and the outer diameter of the installation section 121 is matched with the inner diameter of the annular bracket 15; the mounting section 121 is sleeved in an inner cavity of the annular support 15, and the positioning surface 123 is in contact with the right end surface of the annular support 15; the left part of the main filter element 13 is sleeved on the peripheral surface of the annular bracket 15, and the left end surface of the main filter element 13 is contacted with the inner wall of a left side plate 111 of the fine filter shell 11; the outer end of the mounting hole is circumferentially provided with a flange 112; the tail cover 14 is made of plastic, the outer circumferential surface of the tail cover 14 is provided with a plurality of buckles 141, and the buckles 141 are uniformly arranged along the circumferential direction of the tail cover 14; the plurality of buckles 141 are all clamped on the flanging 112; a sealing ring 16 is arranged between the right end face of the flanging 112 and the left end face of the tail cover 14; the right end face of the main filter element 13 is in contact with the left end face of the tail cover 14, and the right end face of the safety filter element 12 is in contact with the inner wall of the right side plate 131 of the main filter element 13.

According to the actual weighing, one 1800m³The tail cover of the desert air filter with the flow per hour is made of plastics, the dead weight can be reduced by 2kg compared with a tail cover made of metal materials, the desert air filter is beneficial to light weight design of the whole vehicle, and the internal structure is just a technical improvement scheme suitable for plastification of the tail cover.

In addition, the right end of the inner cavity of the fine filter shell 11 is provided with an arc-shaped frame 17, the arc-shaped frame 17 is arranged at the lower part of the inner cavity of the fine filter shell 11, and the shape of the arc-shaped frame 17 is matched with the outer diameter of the main filter element 13. When the arc frame 17 is mainly used for installing and replacing the main filter element 13, the tail part of the main filter element 13 is supported, the main filter element 13 is prevented from loosening and falling before the tail cover 14 is assembled, and after the tail cover 14 is assembled, a gap, generally 5mm, is reserved between the arc frame 17 and the main filter element 13, so that the main filter element 13 is not in contact with the arc frame 17, and the abrasion of the main filter element 13 is avoided.

In order to avoid the filter element shaking, the interference magnitude of 1mm is designed at the matching position of the safety filter element 12, the main filter element 13 and the annular support 15, and the interference magnitude of 2mm is designed in the length direction of the two-stage filter elements, so that the two-stage filter elements are in a compression state after the tail cover is installed on the two-stage filter elements.

Claims (3)

1. The utility model provides a heavily block desert air cleaner, includes essence portion of straining (1) and coarse filter portion (2), be provided with venthole (101) on essence portion of straining (1), be provided with inlet port (201) on coarse filter portion (2), essence portion of straining (1) and coarse filter portion (2) the two inner chamber intercommunication, its characterized in that: the fine filtering part (1) comprises a fine filtering shell (11), a safety filter element (12), a main filter element (13) and a tail cover (14); the left end of the inner cavity of the fine filtering shell (11) is provided with the air outlet (101), the right end of the inner cavity of the fine filtering shell is provided with a mounting hole, the inner end of the air outlet is provided with an annular support (15), the inner cavity of the annular support (15) is coaxial with the air outlet, and the annular support (15) is arranged at the left part of the inner cavity of the fine filtering shell (11); the safety filter element (12) consists of an installation section (121) and a free section (122), the outer diameter of the installation section (121) is smaller than that of the free section (122), a positioning surface (123) is formed between the installation section (121) and the free section (122), and the outer diameter of the installation section (121) is matched with the inner diameter of the annular support (15); the mounting section (121) is sleeved in an inner cavity of the annular support (15), and the positioning surface (123) is in contact with the right end surface of the annular support (15); the left part of the main filter element (13) is sleeved on the peripheral surface of the annular support (15), and the left end surface of the main filter element (13) is contacted with the inner wall of a left side plate (111) of the fine filter shell (11); the outer end of the mounting hole is circumferentially provided with a flanging (112); the outer peripheral surface of the tail cover (14) is provided with a plurality of buckles (141), and the buckles (141) are uniformly arranged along the circumferential direction of the tail cover (14); the plurality of buckles (141) are respectively sleeved on the flanging (112) in a clamping manner; a sealing ring (16) is arranged between the right end face of the flanging (112) and the left end face of the tail cover (14); the right end face of the main filter element (13) is in contact with the left end face of the tail cover (14), and the right end face of the safety filter element (12) is in contact with the inner wall of a right side plate (131) of the main filter element (13).

2. The heavy truck desert air filter of claim 1, characterized in that: the inner chamber right-hand member of shell (11) is strained to the essence is provided with arc frame (17), arc frame (17) set up the inner chamber lower part of straining shell (11) at the essence, the shape of arc frame (17) with the external diameter of main filter core (13) matches.

3. The desert air filter of claim 1 or 2, characterized in that: the tail cover (14) is made of plastic.

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