Flexible rubber joint

Abstract

The utility model discloses a flexible rubber joint, which relates to the technical field of pipeline joints, and comprises a joint body and slotted flanges respectively sleeved at two ends of the joint body, the middle part of the joint body between the two slotted flanges is arranged in an outwards raised arc shape, and the end part of the joint body is integrally provided with a flange connecting part. An annular connecting groove is formed in the end, attached to the flange connecting part at one end of the corresponding side, of the slotted flange, a connecting ring clamped in the annular connecting groove is integrally arranged at the end, close to the slotted flange, of the flange connecting part, and a plurality of protruding rings are arranged on the outer wall and the inner wall of the connecting ring from top to bottom in the circumferential direction of the connecting ring at equal intervals. The sealing performance of the connector is enhanced through the design of the protruding rings on the connecting ring, the protruding rings are arranged along the inner wall and the outer wall of the connecting ring at equal intervals, the friction force of the sealing face can be increased, liquid or gas leakage is prevented, and the good sealing effect can be kept under different pressures.

Description

Technical Field

[0001] This utility model relates to the field of pipe joint technology, specifically a flexible rubber joint. Background Technology

[0002] Flexible rubber joints, also known as vibration dampers, flexible joints, rubber expansion joints, and pipe vibration absorbers, are mainly used to solve various pipe misalignment, axial expansion and contraction, and eccentricity issues. They are commonly used in civil building water supply and drainage projects, fire protection pipe networks, pump room unit piping, sewage treatment pipe connections, high-pressure gas, liquid, and chemical media transportation, petroleum, and shipbuilding industries. They are one of the most commonly used rubber joints in the world today, offering advantages such as reduced pipe noise, good sealing performance, light weight, convenient installation and maintenance, and long service life.

[0003] A typical flexible rubber joint mainly consists of a joint body and slotted flanges fitted onto both ends of the joint body. The ends of the joint body are provided with flange connections. Because the flange connections and the slotted flanges are not sealed, liquid leakage is likely to occur. Utility Model Content

[0004] The purpose of this invention is to provide a flexible rubber joint to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a flexible rubber joint, including a joint body and slotted flanges respectively fitted onto both ends of the joint body. The joint body located between the two slotted flanges has an outwardly convex arc shape in the middle. A flange connection part is integrally provided at the end of the joint body. An annular connecting groove is provided at the end of the slotted flange that is in contact with the flange connection part on the corresponding side. A connecting ring is integrally provided at the end of the flange connection part near the slotted flange, which is engaged in the annular connecting groove. Multiple raised rings are provided at equal intervals from top to bottom along the circumference of the outer and inner walls of the connecting ring.

[0006] Furthermore, the cross-section of the convex ring is arranged in an outwardly convex arc shape.

[0007] Furthermore, the cross-section of the convex ring is an inverted triangle that convexes outwards.

[0008] Furthermore, the outer wall of the joint body located between the two flanges is integrally provided with a reinforcing rib array, which consists of multiple reinforcing rings spaced equally from top to bottom.

[0009] Furthermore, the reinforcing rib array also includes multiple reinforcing strips evenly spaced along the circumference of the joint body, and the reinforcing ring and reinforcing strips are integral and intersecting.

[0010] The beneficial effects achieved by this utility model are as follows:

[0011] 1. The raised ring design on the connecting ring enhances the sealing performance of the joint. The raised rings are evenly spaced along the inner and outer walls of the connecting ring, which not only increases the friction of the sealing surface and prevents liquid or gas leakage, but also maintains a good sealing effect under different pressures.

[0012] 2. The multiple reinforcing rings in the reinforcing rib array effectively disperse the stress and pressure borne by the joint during operation, preventing deformation or damage caused by stress concentration, thereby enhancing the load-bearing capacity of the middle part of the joint body.

[0013] 3. By intersecting the reinforcing rings and reinforcing strips, the joint body achieves comprehensive structural reinforcement in both the axial and circumferential directions, enabling the central part of the joint body to better resist stress and pressure from all directions, thus significantly improving its overall structural strength. Attached Figure Description

[0014] Figure 1 This is a cross-sectional view of a flexible rubber joint in one embodiment;

[0015] Figure 2 The cross-section of the convex ring in the embodiment is an inverted triangle with an outward convex shape;

[0016] Figure 3 This is a schematic diagram of the structure of a flexible rubber joint in the embodiment;

[0017] Figure 4 This is a schematic diagram of the structure of a flexible rubber joint in one of the embodiments. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] like Figure 1 As shown, this utility model discloses a flexible rubber joint, including a joint body 1 and slotted flanges 2 respectively fitted onto both ends of the joint body 1. The joint body 1 located between the two slotted flanges 2 has an outwardly convex arc shape in the middle. A flange connection part 11 is integrally provided at the end of the joint body 1. An annular connecting groove 21 is provided at the end of the slotted flange 2 that is in contact with the flange connection part 11 on the corresponding side. A connecting ring 12 is integrally provided at the end of the flange connection part 11 near the slotted flange 2, which is engaged in the annular connecting groove 21. Multiple raised rings 13 are provided at equal intervals from top to bottom along the circumference of the outer and inner walls of the connecting ring 12.

[0020] Based on the above structure, such as Figure 1As shown, during use, the design of the convex ring 13 on the connecting ring 12 enhances the sealing performance of the joint. The convex ring 13 is set at equal intervals along the inner and outer walls of the connecting ring 12, which can increase the friction between the sealing surface between the connecting ring 12 and the annular connecting groove 21, prevent liquid or gas leakage, and maintain a good sealing effect under different pressures.

[0021] Furthermore, such as Figure 1 As shown, the cross-section of the convex ring 13 is an outwardly convex arc shape. The arc-shaped cross-section design of the convex ring 13 can provide a tighter fit when it is engaged with the annular connecting groove 21, thereby effectively enhancing the sealing performance of the joint.

[0022] Furthermore, such as Figure 2 As shown, the cross-section of the convex ring 13 is an inverted triangle that convexes outward. The inverted triangle cross-section design causes the convex ring 13 to deform when it is engaged with the annular connecting groove 21, increasing the contact area between the convex ring 13 and the annular connecting groove 21. This ensures a more secure engagement between the connecting ring 12 and the annular connecting groove 21, making it less prone to slippage. It also helps to improve sealing and connection strength.

[0023] Furthermore, such as Figure 3 As shown, a reinforcing rib array 14 is integrally provided on the outer wall of the joint body 1 located between the two flanges 2. The reinforcing rib array 14 is composed of multiple reinforcing rings 141 spaced equally from top to bottom. The multiple reinforcing rings 141 in the reinforcing rib array 14 effectively disperse the stress and pressure borne by the joint during operation, prevent deformation or damage caused by stress concentration, and thus enhance the load-bearing capacity of the middle part of the joint body 1.

[0024] Furthermore, such as Figure 4 As shown, in order to further increase the load-bearing capacity of the middle part of the joint body 1, the reinforcing rib array 14 also includes a plurality of reinforcing strips 142 that are equally spaced along the circumference of the joint body 1. The reinforcing ring 141 and the reinforcing strips 142 are integral and cross-arranged. Through the cross-arrangement of the reinforcing ring 141 and the reinforcing strips 142, the joint body 1 has achieved comprehensive structural reinforcement in both the axial and circumferential directions, so that the middle part of the joint body 1 can better resist stress and pressure from all directions, and significantly improve its overall structural strength.

[0025] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A flexible rubber joint, comprising a joint body (1) and slotted flanges (2) respectively fitted onto both ends of the joint body (1), wherein the joint body (1) located between the two slotted flanges (2) has an outwardly convex arc shape in the middle, and a flange connection portion (11) integrally provided at the end of the joint body (1), characterized in that: The slotted flange (2) is provided with an annular connecting groove (21) at one end that fits into the flange connection part (11) on the corresponding side. The flange connection part (11) near the slotted flange (2) is integrally provided with a connecting ring (12) that is snapped into the annular connecting groove (21). Multiple protruding rings (13) are provided at equal intervals from top to bottom along the circumference of the outer and inner walls of the connecting ring (12).

2. The flexible rubber joint according to claim 1, characterized in that: The cross-section of the convex ring (13) is arranged in an outwardly convex arc shape.

3. A flexible rubber joint according to claim 1, characterized in that: The cross-section of the convex ring (13) is an inverted triangle that convexes outward.

4. A flexible rubber joint according to any one of claims 1-3, characterized in that: The outer wall of the joint body (1) located between the two flanges (2) is integrally provided with a reinforcing rib array (14), which is composed of multiple reinforcing rings (141) spaced equally from top to bottom.

5. A flexible rubber joint according to claim 4, characterized in that: The reinforcing rib array (14) also includes a plurality of reinforcing strips (142) arranged at equal intervals along the circumference of the joint body (1), and the reinforcing ring (141) and the reinforcing strips (142) are integral and cross-arranged.

Images