Structure for enhancing connection strength of filter screen framework and filter screen and filter

Abstract

According to the structure for enhancing the connection strength of the filter screen framework and the filter screen and the filter, a plurality of through holes are formed in the positions, corresponding to the filter screen framework, of the filter screen, so that connecting parts are formed at the through holes to connect the outer side framework and the inner side framework of the filter screen framework. The passing ability of flowing materials is improved by machining the through holes in the corresponding parts of the filter screen, so that a complete skeleton structure is better formed on the two sides of the screen cloth, and glue shortage is avoided. According to the invention, the surface flowability is improved by welding the corresponding part of the filter screen to form the hardened area, and the skeleton far away from the pouring gate is prevented from lacking glue, so that the number of process through holes can be reduced, and flow materials are saved.

Description

Technical Field

[0001] The invention belongs to the technical field of filters, and in particular relates to a structure and a filter for enhancing the connection strength between a filter frame and a filter. Background Art

[0002] like Figures 1 to 4 As shown, the fuel filter includes a filter screen, an oil inlet connector and a filter screen frame arranged on the filter screen, wherein the oil inlet connector and the filter screen frame are both plastic parts and are arranged on the filter screen by injection molding. The filter screen is formed by folding a piece of mesh cloth in half and then welding it, or by welding two pieces of mesh cloth.

[0003] In the production process of the filter frame and mesh, the material will encounter greater resistance when passing through the mesh due to the rough surface and fine mesh. Similarly, when the material flows on the mesh surface, the farther away from the gate, the greater the flow resistance. Therefore, after the injection molding, the frame will lack glue, resulting in insufficient strength defects. These problems seriously affect the quality and production efficiency of the product. Summary of the invention

[0004] The object of the present invention is to provide a structure and a filter for enhancing the connection strength between the filter frame and the filter, by pre-processing the filter, thereby improving the fluidity of the flow material and avoiding the lack of glue on the frame, thereby ensuring the strength of the frame.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a structure for enhancing the connection strength between the filter frame and the filter mesh, wherein a plurality of through holes are arranged on the filter mesh at positions corresponding to the filter frame, so that a connecting portion is formed at the through holes to connect the outer frame and the inner frame of the filter frame.

[0006] Furthermore, the through hole is a circular through hole or an elongated through hole.

[0007] Furthermore, a hardened welding area is provided on the filter screen at a position corresponding to the filter screen skeleton, and the through holes are distributed in the hardened welding area.

[0008] Furthermore, the width of the hardened welding zone is not less than the width or diameter of the through hole.

[0009] The present invention further provides a filter, comprising a filter screen, an oil inlet connector and a filter screen frame arranged on the filter screen, wherein the filter screen frame and the filter screen are arranged by the above-mentioned structure.

[0010] Furthermore, the filter frame includes a first frame and a second frame, the first frame and the second frame are arranged in sequence along the length direction, and the first frame corresponds to the oil inlet joint;

[0011] The first frame comprises a first outer frame, a first inner frame and a first connecting portion connecting the first outer frame and the first inner frame;

[0012] The second frame comprises a second outer frame, a second inner frame and a second connecting portion connecting the second outer frame and the second inner frame;

[0013] The through hole includes a first through hole and a second through hole, the first connection portion is formed in the first through hole, and the second connection portion is formed in the second through hole.

[0014] Furthermore, the first outer frame and the first inner frame each have a first frame plate and two first longitudinal ribs symmetrically connected to the first frame plate;

[0015] The second outer frame and the second inner frame each have two second longitudinal ribs parallel to each other and at least one second transverse rib connected between the two second longitudinal ribs on the same side.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) The present invention improves the permeability of the flow material by processing through holes at corresponding parts of the filter screen, thereby better forming a complete skeleton structure on both sides of the mesh cloth to avoid glue deficiency.

[0018] 2) The present invention improves the surface fluidity by welding the corresponding parts of the filter screen to form a hardened area, thereby avoiding glue deficiency in the skeleton away from the gate, and can also reduce the number of process through holes, thereby saving flow materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural stereogram of a fuel filter in the prior art from the front view;

[0020] Figure 2 for Figure 1 A structural stereogram of the fuel filter shown in FIG. 1 from a rear perspective;

[0021] Figure 3 for Figure 1 The fuel filter is shown in the expanded view of the outer side;

[0022] Figure 4 for Figure 1 An expanded view of the inside of the fuel filter is shown;

[0023] Figure 5 This is an expanded view of the outer side of the first embodiment of the present invention;

[0024] Figure 6 This is an expanded view of the inner side of the first embodiment of the present invention;

[0025] Figure 7 This is an expanded view of the outer side of the second embodiment of the present invention;

[0026] Figure 8 It is an expanded view of the outer side of the second embodiment of the present invention. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1: Figure 5 and 6 As shown, the present invention discloses a filter, comprising a filter screen 1, an oil inlet connector 2 and a filter screen frame arranged on the filter screen 1. A plurality of circular through holes are arranged on the filter screen 1 at positions corresponding to the filter screen frame, so that a connecting portion is formed at the through holes to connect the outer frame and the inner frame of the filter screen frame. The circular through holes are processed by laser cutting, and the number and distribution of the circular through holes are determined according to the shape and area of ​​the contact area between the filter screen frame and the filter screen 1.

[0029] In this example, the filter frame includes a first frame 3 and a second frame 4 , the first frame 3 and the second frame 4 are arranged in sequence along the length direction, and the first frame 3 corresponds to the oil inlet joint 2 .

[0030] The first skeleton 3 plays a role of supporting the oil inlet joint 2, so its length is relatively small. The second skeleton 4 plays a role of supporting the main body of the filter, so its length is relatively large.

[0031] The first frame 3 comprises a first outer frame 3.1, a first inner frame 3.2 and a first connection portion connecting the first outer frame 3.1 and the first inner frame 3.2. Specifically, the first outer frame 3.1 and the first inner frame 3.2 each comprise a first frame plate 3.3 and two first longitudinal ribs 3.4 symmetrically connected to the first frame plate 3.3.

[0032] Similarly, the second frame 4 has a second outer frame 4.1, a second inner frame 4.2 and a second connecting portion connecting the second outer frame 4.1 and the second inner frame 4.2. Specifically, the second outer frame 4.1 and the second inner frame 4.2 each have two second longitudinal ribs 4.3 parallel to each other and two second transverse ribs 4.4 connected between the two second longitudinal ribs 4.3 on the same side.

[0033] The through holes include a first through hole 1.1 and a second through hole 1.2, and the first through hole 1.1 and the second through hole 1.2 are formed on the mesh of the filter 1 by a laser cutting process. After the mesh is placed in the injection molding machine, the flow material enters the cavity through the gate, and then passes through the first through hole 1.1 and the second through hole 1.2 to spread throughout the entire cavity on both sides of the mesh. Therefore, after the injection molding is completed, the first connection portion is formed in the first through hole 1.1, thereby connecting the two first longitudinal ribs 3.4 located on the inner and outer sides of the filter 1, and the second connection portion is formed in the second through hole 1.2, thereby connecting the two second longitudinal ribs 4.3 and the second transverse ribs 4.4 located on the inner and outer sides of the filter 1. Since the filter 1 is provided with through holes, the flow material can flow more smoothly from the cavity on the side where the gate is located to the cavity on the other side, thereby avoiding the situation of lack of glue.

[0034] Embodiment 2: Figure 7 As shown, the difference between this embodiment and embodiment 1 is that, in this embodiment, the through hole is a long strip through hole. Compared with the circular through hole, the advantage of the long strip through hole is that its passing area can be ensured by increasing the length and reducing the width. In this way, it is not easy for the through hole to overlap with the longitudinal rib cavity.

[0035] Embodiment 3: Figure 8 As shown, the difference between this embodiment and the first embodiment is that, in this embodiment, a hardened welding area 1.3 is provided on the filter screen 1 at a position corresponding to the filter screen frame, that is, the hardened welding area 1.3 is located within the contact area between the filter screen frame and the filter screen. Through holes are distributed in the hardened welding area 1.3. The hardened welding area 1.3 is a hardened area formed by the mesh cloth through a welding process. The surface of this area after welding will be smoother than the original surface of the mesh cloth, which greatly reduces the flow resistance of the flow material in the hardened welding area 1.3, so that the flow material can flow to the far end. After adopting this method, the number of through holes can be reduced, which can reduce the amount of flow material.

[0036] Furthermore, the width of the hardened welding zone 1.3 is not less than the width or diameter of the through hole.

[0037] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0038] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A structure for enhancing the connection strength between a filter frame and a filter, characterized in that: A plurality of through holes are arranged on the filter screen at positions corresponding to the filter screen frame, so that a connecting portion is formed at the through holes to connect the outer frame and the inner frame of the filter screen frame.

2. A structure for enhancing the connection strength between a filter frame and a filter according to claim 1, characterized in that: The through hole is a circular through hole or an elongated through hole.

3. The structure for enhancing the connection strength between the filter frame and the filter according to claim 1, characterized in that: A hardened welding area is provided on the filter screen at a position corresponding to the filter screen frame, and the through holes are distributed in the hardened welding area.

4. A structure for enhancing the connection strength between a filter frame and a filter according to claim 3, characterized in that: The width of the hardened weld zone is not less than the width or diameter of the through hole.

5. A filter, comprising a filter screen, an oil inlet connector and a filter screen frame arranged on the filter screen, characterized in that: The filter frame and the filter screen are arranged by the structure as claimed in claim 1.

6. A filter according to claim 5, characterized in that: The filter frame includes a first frame and a second frame, the first frame and the second frame are arranged in sequence along the length direction, and the first frame corresponds to the oil inlet joint; The first frame comprises a first outer frame, a first inner frame and a first connecting portion connecting the first outer frame and the first inner frame; The second frame comprises a second outer frame, a second inner frame and a second connecting portion connecting the second outer frame and the second inner frame; The through hole includes a first through hole and a second through hole, the first connection portion is formed in the first through hole, and the second connection portion is formed in the second through hole.

7. A filter according to claim 6, characterized in that: The first outer frame and the first inner frame both have a first frame plate and two first longitudinal ribs symmetrically connected to the first frame plate; The second outer frame and the second inner frame each have two second longitudinal ribs parallel to each other and at least one second transverse rib connected between the two second longitudinal ribs on the same side.

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