Air filter with protruding blocks on frame

Abstract

The utility model relates to the technical field of filters, and particularly discloses an air filter with lugs on a frame. The filter comprises a frame, a filter element and a sealing ring, the filter element is arranged in the frame, a convex edge is arranged on the peripheral wall of the frame, and a positioning convex block is arranged at the bottom of the convex edge of the frame; the sealing ring is arranged on the periphery of the frame in a sleeved mode, a first groove connected with the protruding edge in a matched and clamped mode is formed in the inner circumferential wall of the sealing ring, and a second groove connected with the positioning protruding block in a matched and clamped mode is formed in the first groove. When the sealing ring is assembled on the frame in a sleeved mode, the protruding edge of the frame is clamped in the first groove of the sealing ring, and meanwhile the included positioning protruding block is clamped in the second groove of the sealing ring, so that the sealing ring is stably connected to the frame of the filter in a sleeved mode. The problem that sealing is not tight due to the fact that a sealing ring is prone to deformation, displacement and even disengagement in the installation and use process is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of filter, specifically disclose a frame air filter with protruding block. BACKGROUND

[0002] Air filter is a kind of common air purification equipment, and it is very widely used, generally used in vehicles, clean workshop, laboratory and clean room, or used for the air filtration problem of electronic mechanical communication equipment etc.. It filters impurities, dust etc. in air by filter element, to provide clean air, which has important significance for guaranteeing equipment normal operation, maintaining environment clean and protecting human health etc..

[0003] The existing air filter generally includes framework, filter element and sealing element. The filter element is installed in the framework and plays a role in filtering air. The sealing element is directly sleeved on the periphery of the framework and plays a sealing role after installation to prevent unfiltered air from passing through the gap.

[0004] However, in actual use, the air filter with the above structure has some shortcomings. After installation and use, the sealing element is easily deformed, displaced or even dropped due to external force, vibration and other factors, resulting in poor sealing, affecting the filtering effect and service life of the air filter, and failing to meet the needs of some places with high air cleanliness requirements. Therefore, a new air filter structure is needed to solve the problem of poor sealing. SUMMARY

[0005] The utility model aims at overcoming the defects of prior art, and provides an air filter with frame and protruding block.

[0006] The utility model discloses an air filter with frame and protruding block, which adopts the following technical scheme:

[0007] An air filter with frame and protruding block comprises a frame, a filter element and a sealing ring. The filter element is arranged in the frame. The outer peripheral wall of the frame is provided with a protruding edge. The bottom of the protruding edge of the frame is provided with a positioning protruding block. The sealing ring is sleeved on the periphery of the frame. The inner peripheral wall of the sealing ring is provided with a first groove matched with the protruding edge for clamping. The first groove is provided with a second groove matched with the positioning protruding block for clamping.

[0008] Preferably, the filter element comprises a folded filter medium and a sealing strip bonded to the periphery of the folded filter medium.

[0009] Preferably, the sealing strip protrudes from one side of the folded filter medium and is connected to the frame.

[0010] Preferably, the bottom of the frame is provided with a mounting groove, which is matched and clamped with the edge of the sealing strip protruding from the side of the folded filter medium.

[0011] Preferably, the folded filter medium has a plurality of folding intervals, and a hot melt adhesive strip is arranged on the folded filter medium and is fixed to the folding intervals by melting.

[0012] Preferably, the inflow side and the outflow side of the filter core are both provided with a hot melt adhesive strip.

[0013] Preferably, the positioning protrusions are a plurality of protrusions arranged at the bottom of the raised edge of the frame; or the positioning protrusions are a continuous ring arranged at the bottom of the raised edge of the frame.

[0014] Preferably, the frame is a rectangular frame, and the positioning protrusions are arranged at four edges of the rectangular frame.

[0015] Preferably, the raised edge and the positioning protrusions are integrally formed on the frame.

[0016] Preferably, a net rack is arranged in the frame, and the filter core is located on one side of the net rack of the frame.

[0017] Compared with the prior art, the air filter with the frame provided with the protrusions has at least the following beneficial effects:

[0018] The air filter with the frame provided with the protrusions has at least the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a bottom view of the frame of the air filter with the protrusions of Embodiment 1.

[0020] Figure 2 It is a sectional view of the frame of the air filter with the protrusions of Embodiment 1.

[0021] Figure 3 It is a sectional view of the sealing ring of the air filter with the protrusions of Embodiment 1.

[0022] Figure 4 It is a front view of the assembled air filter with the protrusions of Embodiment 1.

[0023] Figure 5An assembled sectional view of the air filter with frame strip protrusions of Example 1;

[0024] Figure 6 An enlarged view of A of Figure 5 ;

[0025] Figure 7 An assembled top view of the air filter with frame strip protrusions of Example 1;

[0026] Figure 8 A front view of the skeleton of the air filter with frame strip protrusions of Example 2;

[0027] Figure 9 An assembled sectional view of the air filter with frame strip protrusions of Example 2.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1, skeleton; 11, frame; 111, protruding edge; 112, positioning protrusion; 113, mounting groove; 12, net frame; 2, filter element; 21, folded filter medium; 22, edge sealing strip; 23, hot melt adhesive strip; 3, sealing ring; 301, first groove; 302, second groove. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0031] Example 1

[0032] The present embodiment discloses an air filter with frame strip protrusions, referring to Figures 1-7 , which comprises a skeleton 1, a filter element 2 and a sealing ring 3.

[0033] Among them, referring to Figures 1-2 , the skeleton 1 comprises a frame 11 and a net frame 12 arranged in the frame 11, the front and back surfaces of the filter element 2 are respectively the inflow side and the outflow side, the filter element 2 is arranged on the frame 11 and the outflow side faces the side of the net frame 12, the net frame 12 plays a role of strengthening the structural strength of the skeleton 1 and improving the installation stability of the filter element 2, the outer peripheral wall of the frame 11 is provided with a protruding edge 111 extending in the direction of the surface of the filter element, the bottom of the protruding edge 111 of the frame 11 is provided with a positioning protrusion 112 extending in the direction of the filter, the positioning protrusion 112 is arranged at the bottom of the protruding edge 111 of the frame 11, the sealing ring 3 is sleeved on the circumference of the frame 11 of the skeleton 1, the inner peripheral wall of the sealing ring 3 is provided with a first groove 301 matched with the protruding edge 111, and the first groove 301 is provided with a second groove 302 matched with the positioning protrusion 112.

[0034] When the sealing ring 3 is sleeved on the skeleton 1, the raised edge 111 of the skeleton 1 is clamped in the first groove 301 of the sealing ring 3, and at the same time, the positioning protrusion 112 of the skeleton 1 is clamped in the second groove 302 of the sealing ring 3. Through the clamping of the raised edge 111 and the first groove 301, the relative positioning between the sealing ring 3 and the skeleton 1 in the longitudinal direction is realized. The clamping of the positioning protrusion 112 and the second groove 302 realizes the relative positioning between the sealing ring 3 and the skeleton 1 in the transverse direction, thereby realizing the good positioning effect of the sealing ring 3 on the skeleton 1, and avoiding the displacement or even falling of the sealing ring 3. As a preferred solution, the raised edge 111 and the positioning protrusion 112 can be integrally formed on the frame 11, which is easy to produce and manufacture. In addition, the frame 11 of the skeleton 1 is a rectangular frame, and the positioning protrusion 112 is arranged on each side of the rectangular frame, which ensures that the connection stability of the sealing ring 3 around the skeleton 1 is better.

[0035] Referring to Figures 4-6 , the filter element 2 comprises a folded filter medium 21 and a sealing strip 22 arranged around the folded filter medium 21. The sealing strip 22 covers the four edges of the folded filter medium 21 in a glued form, and the height dimension of the sealing strip 22 is greater than that of the folded filter medium 21. The sealing strip 22 protrudes from one side of the folded filter medium 21 and is connected with the frame 11. Specifically, the bottom of the frame 11 is provided with a mounting groove 113, and the mounting groove 113 is matched and clamped with the edge of the sealing strip 22 protruding from one side of the folded filter medium 21, thereby realizing the connection between the filter element 2 and the frame 11 of the skeleton 1.

[0036] Referring to Figures 6-7 , the folded filter medium 21 has a plurality of folding intervals, and a plurality of parallel hot melt glue strips 23 are arranged on the folded filter medium 21 at intervals. The hot melt glue strips 23 are fused and fixed to the folding intervals. As a preferred solution, the inflow side and the outflow side of the filter element 2 are both provided with hot melt glue strips 23. The hot melt glue strips 23 formed by injecting hot melt glue on the folded filter medium 21 fix the folding intervals after the glue cools, thereby improving the structural strength of the filter element 2 and preventing it from being easily deformed.

[0037] Embodiment 2

[0038] The embodiment discloses an air filter with a frame with a protrusion, which is different from the embodiment 1 only in that Figures 8-9 , the positioning protrusion 112 of the embodiment is a continuous ring arranged at the bottom of the raised edge 111 of the frame 11. When the sealing ring 3 is sleeved on the skeleton 1, the raised edge 111 of the skeleton 1 is clamped in the first groove 301 of the sealing ring 3, and at the same time, the positioning protrusion 112 of the skeleton 1 is clamped in the second groove 302 of the sealing ring 3. Through the above design, the same good positioning effect of the sealing ring 3 on the skeleton 1 is achieved, and the displacement or even falling of the sealing ring 3 is avoided.

[0039] The above describes the technical solutions of the present application in detail, and the principles and implementation modes of the present application are described by using specific examples. The above description of the examples is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific implementation modes and application ranges will be changed according to the idea of the present application. In conclusion, the content of the present description should not be understood as a limitation of the present application.

Claims

1. A frame belt grommet air cleaner characterized by, The utility model relates to a filter element, including: Frame (11), filter core (2) and sealing ring (3), the filter core (2) is arranged in frame (11), and the outer peripheral wall of frame (11) is equipped with raised edge (111), and the bottom of the raised edge (111) of frame (11) is equipped with positioning lug (112), the sealing ring (3) is sleeved in the circumference of frame (11), and the inner peripheral wall of sealing ring (3) is equipped with the first recess (301) of cooperation clamping with raised edge (111), and the first recess (301) is equipped with the second recess (302) of cooperation clamping with positioning lug (112).

2. The air cleaner of claim 1, wherein, The filter core (2) includes a folded filter medium (21) and a sealing strip (22) bonded to the outer periphery of the folded filter medium (21).

3. The air cleaner of claim 2, wherein, The sealing strip (22) protrudes from one side of the folded filter medium (21) and is connected to the frame (11).

4. The air cleaner of claim 3, wherein, The bottom of the frame (11) is provided with a mounting groove (113), and the mounting groove (113) is matched and clamped with the edge of the sealing strip (22) protruding from one side of the folded filter medium (21).

5. The air cleaner of claim 2, wherein, The folded filter medium (21) has a plurality of folding intervals, and a hot melt adhesive strip (23) is arranged on the folded filter medium (21), and the hot melt adhesive strip (23) is fused and fixed to the folding intervals.

6. The air cleaner of claim 5, wherein, The inflow side and the outflow side of the filter core (2) are each provided with a hot melt adhesive strip (23).

7. The air cleaner of any of claims 1-6, wherein, The positioning lugs (112) are a plurality of positioning lugs (112) arranged at intervals at the bottom of the raised edge (111) of the frame (11). Alternatively, the positioning lugs (112) are a continuous ring arranged at the bottom of the raised edge (111) of the frame (11).

8. The air cleaner of claim 7, wherein, The frame (11) is a rectangular frame, and the positioning lugs (112) are each provided with one on the four sides of the rectangular frame.

9. The air cleaner of any of claims 1-6, wherein, The raised edge (111) and the positioning lugs (112) are integrally formed on the frame (11).

10. The air cleaner of any of claims 1-6, wherein, The frame (11) is provided with a mesh frame (12), and the filter core (2) is located on one side of the mesh frame (12) of the frame (11).

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