CN208441944U - A kind of sealing structure and air filter assembly - Google Patents

Abstract

The utility model relates to filter core technical fields, disclose a kind of sealing structure and air filter assembly, sealing structure include: the first protrusion for being located on the bottom of the shell of air filter assembly, the first seal for being set to main filter core open end, be located on the shell bottom the second protrusion and be set to the second seal of safety filter element open end；The first seal and first protrusion are tightly connected；Second protrusion is located at the inside of first protrusion；The second seal and second protrusion are tightly connected.Air filter assembly uses sealing structure as described above.First protrusion and the second protrusion can play the role of positioning and guiding, be aligned the center of main filter core and safety filter element and the center of the gas outlet of shell quickly and effectively；First seal and the first protrusion, which are tightly connected, can be such that main filter core effectively seals against with shell to connect；Second seal and the second protrusion, which are tightly connected, can be such that safety filter element effectively seals against with shell to connect.

Description

A kind of sealing structure and air filter assembly

Technical field

The utility model relates to filter core technical field more particularly to a kind of sealing structures and air filter assembly.

Background technique

Existing engineering machinery engine air filter is using filter core and the mating axial seal knot of straight barrel type sealing sleeve pipe Structure (this kind of sealing structure is axially to be sealed along filter core cylinder), and be aided with filter core end face rubber sealing structure, i.e., by cushion rubber It is bonded on the end face steel plate of filter core by glue, in this way, will be filtered by center bolt and nut from one end of filter core when assembly Core locking, makes the other end, i.e., with one end of cushion rubber, cushion rubber is pressed on air filter cylinder body bottom inner side end and is sealed.

But due to not having a self locating device when filter core assembly, the gas outlet of filter core and shell cannot be effectively to the heart, filter core Center be difficult to be aligned with the center of gas outlet；If the center of filter core cannot be aligned with the center of gas outlet, gas outlet may Machine air inlet can be caused obstructed, in addition this kind of structure air filter zero by the cushion rubber of filter core bottom is completely plugged or Partial Blocking Part is more, and filter core assembly is complicated.

Therefore, a kind of sealing structure and air filter assembly are needed, to solve the above technical problems.

Utility model content

One of the purpose of this utility model is to propose a kind of sealing structure have positioning action in assembly, make filter core Center can be quickly and effectively aligned with the center of gas outlet.

For this purpose, the utility model uses following technical scheme:

A kind of sealing structure, comprising:

It is located on the first protrusion of the bottom of the shell of air filter assembly；

It is set to the first seal of main filter core open end, the first seal and first protrusion are tightly connected；

It is located on the second protrusion of the bottom of the shell, second protrusion is located at the inside of first protrusion；

It is set to the second seal of safety filter element open end, the second seal and the second protrusion sealing connect It connects.

First protrusion and the second protrusion can play the role of positioning and guiding, make the center of main filter core and safety filter element and outer The center of the gas outlet of shell is quickly and effectively aligned；First seal and the first protrusion, which are tightly connected, can make main filter core and shell Effectively seal against connection；Second seal and the second protrusion, which are tightly connected, can make safety filter element and shell effectively seal against company It connects.

Preferably, the inside of the first seal and the outside of first protrusion are interference fitted；Second sealing The outside of part and the inside of second protrusion are interference fitted.

Preferably, the bottom part ring of the shell is equipped with third protrusion, and the third protrusion is located at the outer of first protrusion Side, the outside of the first seal and the third protrusion are tightly connected.

Preferably, the outside of the first seal and the inside of the third protrusion are interference fitted.

Preferably, the material of the first seal and the second seal is polyurethane adhesive.

Preferably, multiple first reinforcing ribs are provided between first protrusion and second protrusion.

The another object of the utility model is to propose a kind of air filter assembly have positioning action when assembling filter core, make The center of filter core can be quickly and effectively aligned with the center of gas outlet.

For this purpose, the utility model uses following technical scheme:

A kind of air filter assembly comprising sealing structure as described above.

It preferably, further include the main filter core being connect with first seal and the safety filter being connect with the second seal Core.

Preferably, multiple second reinforcing ribs are provided on the outside of the bottom of the shell and the interconnecting piece of side wall.

Preferably, the air filter assembly further includes the end cap with the cage connection, is provided with dust-exhausting bag on the end cap.

The utility model has the following beneficial effects: the first protrusion and the second protrusion can play the role of positioning and guiding, make to lead The center of filter core and safety filter element is quickly and effectively aligned with the center of the gas outlet of shell.First seal and the first protrusion are close Envelope connection can be such that main filter core effectively seals against with shell connect, and second seal and the second raised sealed connection can make safety Filter core is effectively sealed against with shell and is connect.In addition, the sealing structure part is few, structure is simple.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the bottom of shell provided by the utility model；

Fig. 2 is the structural schematic diagram of sealing structure provided by the utility model；

Fig. 3 is the structural schematic diagram of air filter assembly provided by the utility model.

In figure: 1, shell；11, the first protrusion；12, the second protrusion；13, third protrusion；14, the first reinforcing rib；15, outlet Mouthful；16, the second reinforcing rib；

2, main filter core；21, first seal；3, safety filter element；31, second seal；4, end cap；5, dust-exhausting bag；6, block Button.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

As depicted in figs. 1 and 2, present embodiment discloses a kind of sealing structure, including the first protrusion 11, the second protrusion 12, Third protrusion 13, first seal 21 and second seal 31.As shown in Figure 1, the first protrusion 11 is located on the outer of air filter assembly The bottom of shell 1；Second raised 12 same rings set the bottom with above-mentioned shell 1, and the second protrusion 12 is located at the inside of the first protrusion 11. First seal 21 is set to the open end of main filter core 2, and first seal 21 and the first protrusion 11 are tightly connected.Second seal 31 are set to the open end of safety filter element 3, and second seal 31 and the second protrusion 12 are tightly connected.

First protrusion 11 and the second protrusion 12 can play the role of positioning and guiding, make in main filter core 2 and safety filter element 3 The heart is quickly and effectively aligned with the center of the gas outlet 15 of shell 1；First seal 21 and the first protrusion 11 are tightly connected can Main filter core 2 is effectively sealed against with shell 1 to connect；Second seal 31 and the second protrusion 12, which are tightly connected, can make safety filter element 3 effectively seal against with shell 1 and connect.In addition, the sealing structure part is few, structure is simple.

It is convex in the first protrusion 11 and second in order to increase the intensity of the first protrusion 11 and the second protrusion 12 with continued reference to Fig. 1 It rises and is evenly arranged with multiple first reinforcing ribs 14 between 12.Third protrusion 13 is equally located on the bottom of above-mentioned shell 1, and third is convex Play 13 outsides for being located at the first protrusion 11.The outside of first protrusion 11 and the inside of third protrusion 13 form first annular groove, First seal 21 is set in the first annular groove.As shown in Fig. 2, respectively with first inside and outside first seal 21 The outside of protrusion 11 and the inside interference fit of third protrusion 13.The inside mistake in the outside of second seal 31 and the second protrusion 12 It is full of cooperation.The outside of first seal 21 is step structure, and the outer diameter of one end far from main filter core 2 is less than close to main filter core The outer diameter of 2 one end；First seal 21 is located in first annular groove far from one end of main filter core 2.For the ease of assembling, the Chamfering is provided on the inside of the top of three protrusions 13.

Preferably, the material of first seal 21 and second seal 31 is polyurethane adhesive in the present embodiment.

The present embodiment also discloses a kind of air filter assembly, as shown in figure 3, which employs sealing structure as described above, also Including the main filter core 2 being connect with first seal 21, the safety filter element 3 being connect with second seal 31, end cap 4, dust-exhausting bag 5 and Buckle 6.

Second seal 31 and safety filter element 3 foam fixed and are sealed connected together by PU.In second seal 31 The one layer of grease of silicone fluid of painting in lateral surface one week, then second seal 31 and shell 1 are assembled.Make second seal 31 and Two protrusions 12 are interference fitted, so that safety filter element 3 and shell 1 be made to be tightly connected.Lubrication when grease of silicone fluid had both played assembly is made With also acting sealing function.First seal 21 and main filter core 2 are to be foamed fixed and be sealed connected together by PU.? The one layer of grease of silicone fluid of painting in medial surface one week of first seal 21, then assembles first seal 21 and shell 1.Make first Lateral surface is interference fitted with the lateral surface of the first protrusion 11 and the medial surface of third protrusion 13 respectively in sealing element 21, to make to lead Filter core 2 and shell 1 are tightly connected.

End cap 4 is set to one end of the gas outlet 15 far from shell 1.The junction of shell 1 and end cap 4 is equipped with the outward The junction of one connection bump, end cap 4 and shell 1 is equipped with the second connection bump outward；Connect in the first connection bump and second It connects and is provided with rubber seal between protrusion, be fixed together end cap 4 and shell 1 by buckle 6.

It is provided with dust-exhausting port on end cap 4, dust-exhausting bag 5 is provided on dust-exhausting port；Dust-exhausting bag 5 is fixed on dust discharge by clip On mouth, the dust primary attachment filtered on main filter core 2 is on filter paper, part dust that dust-exhausting bag 5 mainly separates shell 1 Discharge.The air inlet of air filter assembly is arranged on the side wall of shell 1, and air-flow enters shell 1 from air inlet, in 1 the inside gas of shell Stream can rotate, and a part of particle dust is discharged by dust-exhausting bag 5 under the influence of centrifugal force.Filtered air-flow is from gas outlet 15 enter in the machine in downstream, use for machine operation.

Multiple second reinforcing ribs 16 are evenly arranged on the outside of the bottom of shell 1 and the interconnecting piece of side wall, it is outer for reinforcing The bottom of shell 1 and the bonding strength of side wall.

Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended Scope of the claims determine.

Claims (10)

1. a kind of sealing structure characterized by comprising

It is located on first raised (11) of the bottom of the shell (1) of air filter assembly；

It is set to the first seal (21) of main filter core (2) open end, the first seal (21) and first protrusion (11) it is tightly connected；

Second raised (12) of the bottom of the shell (1) are located on, described second raised (12) are located at first protrusion (11) inside；

It is set to the second seal (31) of safety filter element (3) open end, the second seal (31) and second protrusion (12) it is tightly connected.

2. sealing structure according to claim 1, which is characterized in that the inside of the first seal (21) and described the The outside interference fit of one raised (11)；The inside interference in the outside of the second seal (31) and second raised (12) Cooperation.

3. sealing structure according to claim 1, which is characterized in that the bottom part ring of the shell (1) is equipped with third protrusion (13), the third protrusion (13) is located at the outside of described first raised (11), the first seal (21) and the third Raised (13) are tightly connected.

4. sealing structure according to claim 3, which is characterized in that the outside of the first seal (21) and described the The inside interference fit of three raised (13).

5. sealing structure according to claim 1, which is characterized in that the first seal (21) and second sealing The material of part (31) is polyurethane adhesive.

6. sealing structure according to claim 1, which is characterized in that described first raised (11) and second protrusion (12) multiple first reinforcing ribs (14) are provided between.

7. a kind of air filter assembly, which is characterized in that it includes such as sealing structure of any of claims 1-6.

8. air filter assembly according to claim 7, which is characterized in that further include the main filter being connect with first seal (21) Core (2) and the safety filter element (3) being connect with the second seal (31).

9. air filter assembly according to claim 7, which is characterized in that be provided on the outside of the bottom of the shell (1) more A second reinforcing rib (16).

10. air filter assembly according to claim 7, which is characterized in that the air filter assembly further includes and the shell (1) The end cap (4) of connection is provided with dust-exhausting bag (5) on the end cap (4).