Filter element limiting and supporting framework

Abstract

The utility model discloses a filter element limit support skeleton, including: core cylinder, flange and filament, the circumferential interval is provided with the rib that extends along the length direction of core cylinder on the outer circle of core cylinder, the rib annular array distribution forms the cylindrical cage body, the filament spiral intertwines on the cylindrical cage body, the flange is provided at the both ends of core cylinder, and the flange is provided with the flange. A threaded sleeve extending into the core cylinder is arranged in an inner hole of the flange, and a filter element limiting ring extending to the cylindrical cage body is arranged on the edge of the flange. Through the mode, the filter element limiting and supporting framework disclosed by the utility model has the advantages that the supporting effect of the filaments on the interior of the filter element is improved, the two ends of the filter element are limited, and the structure is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a filter element limiting support frame. Background Art

[0002] Cylindrical filter elements are widely used. The material can be paper or nylon plastic. The structural strength is not high and usually requires a supporting frame for internal support.

[0003] The support skeleton of the filter element can be made by spirally winding wire strips on ribs distributed in a ring array. The utility model patent with application number 201120324602.4 discloses a filter element skeleton, which is formed by wire strips wound on the outer surface of the support strips to support the filter element. However, the structural strength of the support strips is not high, and the impact resistance is poor. It is not suitable for supporting long filter elements, and the end of the filter element cannot be limited, which makes the filter element easy to slide axially and has poor stability. Improvement is needed. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a filter element limiting support framework to improve the support stability of the filter element and avoid axial movement of the filter element.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a filter element limiting support skeleton, including: a core barrel, a flange and a wire strip, the outer circumference of the core barrel is circumferentially arranged with ribs extending along the length direction of the core barrel, the ribs are distributed in a ring array to form a cylindrical cage body, the wire strips are spirally wound on the cylindrical cage body at intervals, the flanges are arranged at both ends of the core barrel, the inner hole of the flange is arranged with a threaded sleeve extending into the core barrel, and the edge of the flange is arranged with a filter element limiting ring extending to the cylindrical cage body.

[0006] In a preferred embodiment of the present invention, both ends of the inner hole of the core barrel are respectively provided with internal threads corresponding to the threaded sleeve.

[0007] In a preferred embodiment of the utility model, waist holes are axially spaced apart on the core tube, and the waist holes are located between two adjacent ribs.

[0008] In a preferred embodiment of the present invention, the flange, the filter element limiting ring and the threaded sleeve are made of an integrated stainless steel structure.

[0009] In a preferred embodiment of the present invention, the core tube and the ribs are made of an integrated stainless steel structure or a split welded structure.

[0010] In a preferred embodiment of the present invention, the contact points between the wire strips and the ribs are fixed by welding.

[0011] In a preferred embodiment of the present invention, the flange end face is provided with an annular array of threaded holes.

[0012] The beneficial effects of the utility model are as follows: the utility model points out a filter element limiting support skeleton, which supports and fixes the ribs through the core tube, and uses the ribs to support the wire strips, thereby improving the supporting stability of the wire strips on the inside of the filter element, has high impact strength, is suitable for filter elements of large lengths, and uses the filter element limiting ring to limit the two ends of the filter element to avoid axial sliding of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0014] Figure 1 This is a structural schematic diagram of a preferred embodiment of a filter element limiting support framework of the utility model;

[0015] Figure 2 yes Figure 1 AA section view. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0017] See also Figure 1~Figure 2 , the utility model embodiment includes:

[0018] like Figure 1 The filter element limiting support skeleton shown in the figure comprises: a core barrel 1, a flange 4 and a wire strip 3. Ribs 2 extending along the length direction of the core barrel 1 are arranged circumferentially at intervals on the outer circle of the core barrel 1. The ribs 2 are arranged in an annular array to form a cylindrical cage body, such as Figure 2 As shown, the core tube 1 and the ribs 2 adopt an integrated stainless steel structure or a split welded structure, and the ribs 2 are supported by the core tube 1, so the structure is stable.

[0019] The wire strips 3 are spirally wound around the cylindrical cage at intervals, and the pitch is controlled to form gaps, which is conducive to the flow of fluid through the gaps. In this embodiment, the wire strips 3 are welded and fixed at the contact points with the ribs 2, and are processed by resistance welding, which has high production efficiency.

[0020] like Figure 2 As shown, the cross section of the rib 2 is a triangular structure, and is in contact with the wire 3 through an edge and is welded and fixed, thereby ensuring a gap between the wire 3 and the outer circle of the core tube 1. Figure 1 As shown, waist holes 11 are axially spaced apart on the core tube 1 , and the waist holes 11 are located between two adjacent ribs 2 , which is conducive to the fluid between the two adjacent ribs 2 entering the core tube 1 through the waist holes 11 .

[0021] The flange 4 is arranged at both ends of the core barrel 1, and a threaded sleeve 41 extending into the core barrel 1 is arranged in the inner hole of the flange 4. In this embodiment, the inner holes of the core barrel 1 are respectively provided with internal threads 12 corresponding to the threaded sleeve 41, which is convenient for assembly. The end face of the flange 4 is provided with a circular array of threaded holes 43, which facilitates the connection of the flange 4 with other pipelines by screws.

[0022] A filter element limiting ring 42 extending to the cylindrical cage is arranged at the edge of the flange 4. The outer diameter of the filter element limiting ring 42 is slightly larger, which can limit the two ends of the filter element to prevent the axial sliding of the filter element and improve the stability of the filter element during use. Figure 1 As shown, the filter element limiting ring 42 can also limit the position of the wire strip 3, and even if the wire strip 3 and the rib 2 are de-welded, the axial movement of the wire strip 3 can be avoided.

[0023] In this embodiment, the flange 4, the filter element limiting ring 42 and the threaded sleeve 41 adopt an integrated stainless steel structure, which improves the convenience of assembly, has good corrosion resistance and high structural strength.

[0024] In summary, the utility model points out a filter element limiting support framework, in which the filter element sleeve is arranged on the outside of the wire strip 3, which is easy to assemble and can perform end limiting and internal support of the filter element, thereby improving the impact resistance and axial stability of the filter element.

[0025] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A filter element limiting support framework, characterized in that: include: A core barrel, a flange and wire strips, wherein ribs extending along the length direction of the core barrel are circumferentially arranged at intervals on the outer circumference of the core barrel, the ribs are distributed in a ring array to form a cylindrical cage body, the wire strips are spirally wound on the cylindrical cage body at intervals, the flanges are arranged at both ends of the core barrel, a threaded sleeve extending into the core barrel is arranged in the inner hole of the flange, and a filter element limiting ring extending to the cylindrical cage body is arranged on the edge of the flange.

2. The filter element limiting support framework according to claim 1, characterized in that: Both ends of the inner hole of the core barrel are respectively provided with internal threads corresponding to the threaded sleeve.

3. The filter element limiting support framework according to claim 1, characterized in that: The core tube is provided with waist holes at intervals in the axial direction, and the waist holes are located between two adjacent ribs.

4. The filter element limiting support framework according to claim 1, characterized in that: The flange, filter element limiting ring and threaded sleeve adopt an integrated stainless steel structure.

5. The filter element limiting support framework according to claim 1, characterized in that: The core tube and the ribs adopt an integrated stainless steel structure or a split welded structure.

6. The filter element limiting support framework according to claim 1, characterized in that: The contact points between the wire strips and the ribs are fixed by welding.

7. The filter element limiting support framework according to claim 1, characterized in that: The flange end surface is provided with a circular array of threaded holes.

Images