Filter joint

Abstract

The utility model provides a filtering connector which comprises a connector body, a filtering cavity is formed in the inner side of one end of the connector body, and a filtering assembly is arranged in the filtering cavity. The filtering assembly comprises a plug, an annular first filter screen, an annular second filter screen and an annular supporting piece; one end of the first filter screen is fixedly sleeved on the outer side of the plug and is circumferentially sealed with the plug, the other end of the first filter screen is fixedly sleeved on the outer side of the inner end part of the support piece and is circumferentially sealed with the support piece, and the outer end part of the support piece is fixed with one end of the joint body and is circumferentially sealed with the joint body; the second filter screen wraps the first filter screen and is fixed to the first filter screen, the mesh diameter of the second filter screen is smaller than that of the first filter screen, and the peripheral wall of the second filter screen is in clearance fit with the side wall of the filter cavity; according to the utility model, impurities in fluid can be filtered, so that a fluid control device connected to a fluid channel at the rear stage of the filter joint can be effectively prevented from being blocked.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and more specifically, to a filter connector. Background Technology

[0002] Connectors are devices used to connect fluid channels. Currently, the connectors used on the market do not have a filtration structure. As a result, when the fluid flows through the connector, impurities mixed in the fluid will enter the fluid channel downstream of the connector. When the impurities enter the fluid channel downstream of the connector, they will cause blockage of the fluid control device connected to the fluid channel downstream of the connector, thus causing unnecessary trouble. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a filter connector that can filter impurities in fluids, thereby effectively preventing the clogging of the fluid control device connected to the fluid channel located downstream of the filter connector.

[0004] This utility model provides a filter connector, including a connector body, with a filter chamber formed on the inner side of one end of the connector body, and a filter assembly disposed in the filter chamber; the filter assembly includes a plug, a first filter screen in the shape of an annular shape, a second filter screen in the shape of an annular shape, and a support member in the shape of an annular shape; one end of the first filter screen is sleeved and fixed to the outside of the plug and circumferentially sealed to the plug, and the other end of the first filter screen is sleeved and fixed to the outside of the inner end of the support member and circumferentially sealed to the support member, the outer end of the support member is fixed to one end of the connector body and circumferentially sealed, the second filter screen is wrapped around the outside of the first filter screen and fixed to the first filter screen, the mesh diameter of the second filter screen is smaller than the mesh diameter of the first filter screen, and the outer peripheral wall of the second filter screen is clearance-fitted with the side wall of the filter chamber.

[0005] By adopting the above structure, when fluid flows through the connector body, impurities mixed in the fluid can be blocked in the filter chamber located outside the first and second filter screens under the action of the filter assembly. This prevents impurities from entering the fluid channel located downstream of the connector body, thereby effectively preventing blockage of the fluid control device connected to the fluid channel downstream of the filter connector. In addition, in the above structure, the hardness of the first filter screen is greater than that of the second filter screen, and the first filter screen can reliably play a supporting role to effectively prevent deformation of the first filter screen.

[0006] In one possible implementation, the two ends of the first filter screen are sintered and fixed to the plug and the support respectively; by adopting this structure, the two ends of the first filter screen can be reliably fixed to the plug and the support respectively, and achieve circumferential sealing with the plug and the support respectively.

[0007] In one possible implementation, the two ends of the second filter screen are sintered and fixed to the plug and the support respectively; with this structure, the two ends of the second filter screen can be reliably fixed to the plug and the support respectively, and the second filter screen can be reliably wrapped around the outside of the first filter screen.

[0008] In one possible implementation, an annular step is provided on the inner peripheral wall of one end of the connector body, and an annular support edge is provided on the outer end of the support member extending outward in the radial direction of the support member. The annular support edge is supported on the annular step and tightly fitted with the side wall of the annular step. With this structure, the outer end of the support member can be reliably connected to one end of the connector body through the cooperation of the annular support edge and the annular step. And because the annular support edge is tightly fitted with the side wall of the annular step, a circumferential seal between the support member and one end of the connector body can be achieved.

[0009] In one possible implementation, the inner edge of one end of the connector body is stamped and deformed to press the annular support edge onto the annular step. With this structure, after the annular support edge is supported on the annular step, and after the inner edge of one end of the connector body is stamped and deformed, the annular support edge can be pressed onto the annular step, thereby enabling the support member to be reliably fastened to one end of the connector body, that is, enabling the filter assembly to be reliably fixed to the connector body. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0011] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0012] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle. Detailed Implementation

[0013] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0014] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0015] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0016] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] See Figure 1-3 As shown in the figure, this application discloses a filter connector, including a connector body 1. A filter cavity 11 is formed on the inner side of one end of the connector body 1, and a filter assembly is disposed in the filter cavity 11. The filter assembly includes a plug 2, a first filter screen 3 in the shape of an annular shape, a second filter screen 4 in the shape of an annular shape, and a support member 5 in the shape of an annular shape. One end of the first filter screen 3 is sleeved and fixed to the outside of the plug 2 and circumferentially sealed to the plug 2. The other end of the first filter screen 3 is sleeved and fixed to the outside of the inner end of the support member 5 and circumferentially sealed to the support member 5. The outer end of the support member 5 is fixed to one end of the connector body 1 and circumferentially sealed. The second filter screen 4 is wrapped around the outside of the first filter screen 3 and fixed to the first filter screen 3. The mesh diameter of the second filter screen 4 is smaller than the mesh diameter of the first filter screen 3. The outer peripheral wall of the second filter screen 4 is clearance-fitted with the side wall of the filter cavity 11.

[0018] The two ends of the first filter screen 3 are sintered and fixed to the plug 2 and the support 5 respectively. With this structure, the two ends of the first filter screen can be reliably fixed to the plug and the support respectively, and achieve circumferential sealing with the plug and the support respectively.

[0019] The two ends of the second filter screen 4 are sintered and fixed to the plug 2 and the support 5 respectively. With this structure, the two ends of the second filter screen can be reliably fixed to the plug and the support respectively, and the second filter screen can be reliably wrapped around the outside of the first filter screen.

[0020] An annular step 12 is provided on the inner peripheral wall of one end of the connector body 1, and an annular support edge 51 extending outward along the radial direction of the support member 5 is provided on the outer end of the support member 5. The annular support edge 51 is supported on the annular step 12 and tightly fitted with the side wall of the annular step 12. With this structure, the outer end of the support member can be reliably connected to one end of the connector body through the cooperation of the annular support edge and the annular step. And because the annular support edge is tightly fitted with the side wall of the annular step, a circumferential seal between the support member and one end of the connector body can be achieved.

[0021] After the inner edge of one end of the connector body 1 is stamped and deformed, it presses the annular support edge 51 onto the annular step 12. With this structure, after the annular support edge is supported on the annular step, and after the inner edge of one end of the connector body is stamped and deformed, it can press the annular support edge onto the annular step, so that the support can be reliably fastened to one end of the connector body, that is, the filter assembly can be reliably fixed to the connector body.

[0022] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A filter fitting comprising a fitting body (1), characterised in that: The inner side of one end of the joint body (1) forms a filter cavity (11), and a filter assembly is arranged in the filter cavity (11); the filter assembly comprises a plug (2), a first annular filter screen (3), a second annular filter screen (4) and a support (5); one end of the first filter screen (3) is fixedly sleeved on the outer side of the plug (2) and is circumferentially sealed with the plug (2), the other end of the first filter screen (3) is fixedly sleeved on the outer side of the inner end of the support (5) and is circumferentially sealed with the support (5), the outer end of the support (5) is fixed and circumferentially sealed with one end of the joint body (1), the second filter screen (4) is wrapped on the outside of the first filter screen (3) and is fixed with the first filter screen (3), the mesh aperture of the second filter screen (4) is smaller than that of the first filter screen (3), and the outer peripheral wall of the second filter screen (4) is gap-fitted with the side wall of the filter cavity (11).

2. The filter sub according to claim 1, characterized in that: Both ends of the first filter screen (3) are sintered and fixed with the plug (2) and the support (5) respectively.

3. The filter sub according to claim 2, characterized in that: Both ends of the second filter screen (4) are sintered and fixed with the plug (2) and the support (5) respectively.

4. Filter joint according to any of claims 1-3, characterized in that: An annular step (12) is arranged on the inner peripheral wall of one end of the joint body (1), and an annular support edge (51) extending outward along the radial direction of the support (5) is arranged on the outer end of the support (5), the annular support edge (51) is supported on the annular step (12) and is tightly fitted with the side wall of the annular step (12).

5. The filter sub according to claim 4, characterized in that: The inner edge of one end of the joint body (1) is deformed by stamping to press the annular support edge (51) tightly on the annular step (12).

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