Transition joint

Abstract

The utility model provides a transition joint, and belongs to the technical field of joints. The problem that an existing transition joint is low in sealing performance is solved. The transition joint comprises a joint body with a water inlet end, the water inlet end of the joint body is connected with a nut body, the nut body is in threaded connection with the water inlet end through internal threads, the nut body is provided with an extension sleeve extending towards the interior of the joint body, and the interior of the joint body is provided with a step protruding outwards and allowing the extension sleeve to abut against. The front end of the extension sleeve extends to form an inner sleeve, the inner sleeve is wrapped with a sealing layer forming sealing with the step, a sealing pressing piece is arranged on the sealing layer and between the sealing layer and the step, the sealing pressing piece is in a barb shape and is of a hollow structure, and the end of the sealing pressing piece is pressed towards the surface of the sealing layer. The sealing structure has the advantage that the sealing performance is improved.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology and relates to a transition connector. Background Technology

[0002] Currently, the connectors on the market mainly serve to connect the two ends of the pipes and allow liquid to pass through inside. However, the sealing performance of the water inlet end of the existing connectors is not good. Long-term water inlet environment can easily cause the simple sealing ring to misalign and fail, affecting the sealing performance. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the prior art by providing a transition joint that improves sealing performance.

[0004] The objective of this utility model can be achieved through the following technical solution: A transition connector, comprising a connector body having a water inlet end, characterized in that the water inlet end of the connector body is connected to a nut body, the nut body is threadedly connected to the water inlet end via an internal thread, the nut body has an extension sleeve extending toward the interior of the connector body, the interior of the connector body has an outwardly protruding step for the extension sleeve to abut against, the front end of the extension sleeve extends to an inner sleeve, the inner sleeve is wrapped with a sealing layer that forms a seal with the step, a sealing pressure member is provided on the sealing layer and between it and the step, the sealing pressure member is hook-shaped and has a hollow structure inside, the end of the sealing pressure member is pressed toward the surface of the sealing layer.

[0005] In one of the aforementioned transition joints, the sealing layer has a sealing protrusion, and the nut body has a sealing groove into which the sealing protrusion engages.

[0006] Compared with existing technologies, this transition joint has the advantage of highly efficient sealing. Attached Figure Description

[0007] Figure 1 This is a sectional view of the transition joint.

[0008] Figure 2 yes Figure 1 Enlarged view of point A.

[0009] In the diagram, 1 is the water inlet; 2 is the connector body; 3 is the nut body; 4 is the extension sleeve; 5 is the step; 6 is the inner sleeve; 7 is the sealing layer; 8 is the sealing pressure element; and 9 is the sealing protrusion. Detailed Implementation

[0010] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0011] like Figure 1 , Figure 2 As shown, this transition connector includes a connector body 2 with a water inlet end 1. The water inlet end 1 of the connector body 2 is connected to a nut body 3. The nut body 3 is threadedly connected to the water inlet end 1 via an internal thread. The nut body 3 has an extension sleeve 4 extending into the connector body 2. The connector body 2 has a step 5 protruding outward and abutting against the extension sleeve 4. An inner sleeve 6 extends from the front end of the extension sleeve 4. The inner sleeve 6 is wrapped with a sealing layer 7 that forms a seal with the step 5. A sealing pressure member 8 is provided on the sealing layer 7 and between it and the step 5. The sealing pressure member 8 is hook-shaped and has a hollow structure. The end of the sealing pressure member 8 is pressed against the surface of the sealing layer 7. After being connected to the nut body 3, the sealing pressure member 8 abuts against the wall of the step 5, forcing it to deform, so that the end of the sealing pressure member 8 is pressed against the surface of the sealing layer 7 to form a high-efficiency seal.

[0012] Preferably, the sealing layer 7 has a sealing protrusion 9, and the nut body 3 has a sealing groove into which the sealing protrusion 9 is engaged.

[0013] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0014] Although this document frequently uses terms such as inlet end 1, connector body 2, nut body 3, extension sleeve 4, step 5, inner sleeve 6, sealing layer 7, sealing pressure element 8, and sealing protrusion 9, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A transition connector, comprising a connector body (2) having a water inlet end (1), characterized in that, The connector body (2) has a nut body (3) connected to the water inlet end (1). The nut body (3) is threaded to the water inlet end (1) through an internal thread. The nut body (3) has an extension sleeve (4) extending into the connector body (2). The connector body (2) has a step (5) protruding outward and for the extension sleeve (4) to abut against. The extension sleeve (4) has an inner sleeve (6) extending to its front end. The inner sleeve (6) is wrapped with a sealing layer (7) that forms a seal with the step (5). A sealing pressure member (8) is provided on the sealing layer (7) and between it and the step (5). The sealing pressure member (8) is hook-shaped and has a hollow structure inside. The end of the sealing pressure member (8) is pressed against the surface of the sealing layer (7).

2. A transition joint according to claim 1, characterized in that, The sealing layer (7) has a sealing protrusion (9), and the nut body (3) has a sealing groove for the sealing protrusion (9) to be inserted into.

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