Haff joint with good sealing performance

Abstract

The utility model relates to a Haff joint with good sealing performance, which comprises a first body, a second body and a rubber pad, the first body and the second body are hinged and are fixedly connected through a bolt, and the rubber pad is arranged on the inner wall of the first body; the first body is provided with a supporting opening, the inner surface of the supporting opening is provided with an internal thread and a blocking face, a groove is formed in the surface of the blocking face, and a sealing ring is arranged in the groove in a matched mode.

Description

Technical Field

[0001] The present application belongs to the technical field of half joints and relates to a half joint with good sealing performance. Background Art

[0002] A half joint is a pipe leak stopper and a pipeline emergency repair device. The common half joint has a simple structure, consisting of two main bodies and a rubber pad. It is easy to install. Just put the two main bodies together at the leaking place and tighten the nuts to complete the emergency repair of the pipeline, which can save water outage time and reduce emergency repair costs. Some half joints on the market have branch ports, which are connected to sealing components or branch pipes through threads, but the branch port connection is prone to leaks and is more troublesome to assemble. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the present application aims to provide a half joint with good sealing performance, the sealing effect at the branch opening is more perfect and the assembly efficiency is higher.

[0004] The present application is implemented through the following technical solutions.

[0005] The technical solution is to provide a half joint with good sealing performance, including a first body, a second body and a rubber pad, the first body and the second body are hinged and fixedly connected by bolts, and the rubber pad is provided on the inner wall of the first body; the first body is provided with a branch opening, the inner surface of the branch opening is provided with an internal thread and a blocking surface, a groove is formed on the surface of the blocking surface, and a sealing ring is provided in the groove.

[0006] The half joint of the present technical solution is provided with a blocking surface on the inner surface of the branch opening, and the sealing ring is placed in a groove on the blocking surface, which can prevent the rubber ring from shifting and improve the sealing effect; compared with sealing by wrapping raw tape around the thread, quick installation can be achieved to reduce assembly time.

[0007] In one embodiment of the present technical solution, the groove is an arc-shaped groove, and the sealing ring is an O-ring with a circular cross-section.

[0008] In one embodiment of the present technical solution, the first body forms a convex tube portion inwardly along the branch opening, the rubber pad is provided with an opening, and the convex tube portion passes through the opening.

[0009] In one embodiment of the present technical solution, the surface of the rubber pad is provided with a plurality of concentric convex rings formed around the convex tube portion.

[0010] In one embodiment of the present technical solution, the inner walls of the first body and the second body are further provided with anti-slip convex patterns, and the convex patterns are located outside the rubber pad.

[0011] In one embodiment of the present technical solution, the first body is provided with a first connecting ear, the second body is provided with a second connecting ear, and the first connecting ear and the second connecting ear are fixedly connected by bolts.

[0012] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0014] Figure 1 It is a schematic diagram of the overall structure of the Hough joint shown in one embodiment of the present application.

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of a Hough joint shown in an embodiment of the present application.

[0016] Figure 3 It is a schematic diagram of the exploded structure of a Hough joint shown in one embodiment of the present application.

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the first body shown in an embodiment of the present application.

[0018] Description of reference numerals:

[0019] 11-first body; 111-branch; 112-internal thread; 113-blocking surface; 114-groove; 115-convex tube; 116-convex pattern; 117-first connecting ear; 12-second body; 127-second connecting ear; 13-rubber pad; 131-convex ring; 132-opening; 14-bolt; 15-sealing ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in some embodiments of the present application to clearly and completely describe the technical solutions in some embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 4As shown in the figure, this embodiment provides a half joint with good sealing performance, including a first body 11, a second body 12 and a rubber pad 13. The first body 11 and the second body 12 are hinged by a pin shaft and fixedly connected by a bolt 14, and the rubber pad is provided on the inner wall of the first body 11; the first body 11 is provided with a branch port 111, and the inner surface of the branch port 111 is provided with an internal thread 112 and a blocking surface 113, a groove 114 is formed on the surface of the blocking surface 113, and a sealing ring 15 is provided in the groove 114.

[0023] Specifically, the blocking surface 113 is located inside the internal thread 112, and the blocking surface 113 is arranged perpendicular to the axial direction of the branch port 111. When the branch pipe or the sealing member is connected to the branch port 111 through threads, it contacts and presses against the sealing ring 15. In this way, the blocking surface 113 is arranged on the inner surface of the branch port 111, and the sealing ring 15 is placed in the groove 114 on the blocking surface 113, which can prevent the rubber ring from shifting, improve the sealing effect, and achieve quick installation to reduce assembly time.

[0024] In this embodiment, the groove 114 is an arc-shaped groove, and the sealing ring 15 is an O-ring with a circular cross section.

[0025] In this embodiment, the first body 11 forms a convex tube portion 115 inwardly along the branch opening 111, and the rubber pad 13 is provided with an opening 132, and the convex tube portion 115 passes through the opening 132. In this way, when the half joint is installed on the pipeline, the convex tube portion 115 can extend to the inside of the pipeline to restrict the half joint.

[0026] In this embodiment, the surface of the rubber pad 13 is provided with a plurality of concentric convex rings 131 formed around the convex tube portion 115, and the convex rings 131 increase the sealing performance of the rubber pad 13. The inner walls of the first body 11 and the second body 12 are both provided with convex grooves 116 for anti-slip, and the convex grooves 116 are located outside the rubber pad 13.

[0027] In this embodiment, the first body 11 is provided with a first connecting ear 117, and the second body 12 is provided with a second connecting ear 127. The first connecting ear 117 and the second connecting ear 127 are fixedly connected by bolts 14, wherein there are two first connecting ears 117 and two second connecting ears 127.

[0028] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A half joint with good sealing performance, characterized in that: It includes a first body, a second body and a rubber pad, the first body and the second body are hinged and fixedly connected by bolts, and the rubber pad is provided with the inner wall of the first body; the first body is provided with a branch opening, the inner surface of the branch opening is provided with an internal thread and a blocking surface, a groove is formed on the surface of the blocking surface, and a sealing ring is provided in the groove.

2. The half joint with good sealing performance according to claim 1, characterized in that: The groove is an arc-shaped groove, and the sealing ring is an O-ring with a circular cross section.

3. The half joint with good sealing performance according to claim 1, characterized in that: The first body forms a convex tube portion inwardly along the branch opening, and the rubber pad is provided with an opening, and the convex tube portion passes through the opening.

4. The half joint with good sealing performance according to claim 3, characterized in that: The surface of the rubber pad is provided with a plurality of concentric convex rings formed around the convex tube portion.

5. The half joint with good sealing performance according to claim 1, characterized in that: The inner walls of the first body and the second body are also provided with anti-slip convex patterns, and the convex patterns are located outside the rubber pad.

6. The half joint with good sealing performance according to claim 1, characterized in that: The first body is provided with a first connecting ear, the second body is provided with a second connecting ear, and the first connecting ear and the second connecting ear are fixedly connected by bolts.

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