High-temperature-resistant rubber joint

Abstract

The utility model belongs to the technical field of pipeline joints, and particularly relates to a high-temperature-resistant rubber joint which comprises a joint body, a joint flange and a turbulent flow cooling mechanism, the joint body comprises an arc-shaped part and a plurality of sets of limiting parts, the limiting parts are symmetrically arranged and fixedly connected with the two ends of the arc-shaped part, and the arc-shaped part comprises a rubber layer and a high-temperature-resistant layer. The high-temperature-resistant layer covers and is fixedly connected with the rubber layer, the connector flange is arranged on the outer wall of the connector body in a sleeved mode and is connected with the limiting portion in a clamped mode, the turbulent flow cooling mechanism is arranged on the inner side of the arc-shaped portion, and the connector flange is provided with a threaded hole and is fixedly connected with a pipeline through a fastener.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline joints, and particularly relates to a high-temperature resistant rubber joint. Background Art

[0002] A flexible rubber joint is also called a shock absorber, a flexible joint, a rubber flexible connection, a pipeline shock absorber, etc. It solves the problems of neck offset, axial expansion and non-concentricity of various pipelines, and is often used in the water supply and drainage projects of civil buildings, the connection of pipeline systems in fire pump rooms, the connection of sewage treatment pipelines, the transportation of high-pressure gas-liquid chemical media, etc. The existing rubber joint has a simple structure and good use effect within a certain temperature range. However, if it is used in a high-temperature environment, its performance may be greatly reduced or even unable to be used normally, and its weather resistance is poor. Content of the Utility Model

[0003] Aiming at the problems existing above, the utility model specifically designs a high-temperature resistant rubber joint to enhance the high-temperature resistance of the rubber joint.

[0004] To achieve the above object, the utility model provides a high-temperature resistant rubber joint, which includes a joint body, a joint flange and a turbulent flow cooling mechanism. The joint body includes an arc portion and a limiting portion. There are multiple groups of the limiting portions, which are symmetrically arranged and fixedly connected to both ends of the arc portion. The arc portion includes a rubber layer and a high-temperature resistant layer. The high-temperature resistant layer covers and is fixedly connected to the rubber layer. The joint flange is sleeved on the outer wall of the joint body and is clamped to the limiting portion. The turbulent flow cooling mechanism is arranged inside the arc portion. The joint flange is provided with threaded holes and is fixedly connected to a pipeline through fasteners.

[0005] Preferably, the rubber layer is a chloroprene rubber layer, and the high-temperature resistant layer is a ceramic fiber cloth layer.

[0006] Preferably, the turbulent flow cooling mechanism includes an arc-shaped support bar, a radial support bar, a bearing and a fan impeller. The arc-shaped support bar is pressed between the rubber layer and the high-temperature resistant layer. The radial support bar penetrates through the rubber layer and is fixedly connected to the arc-shaped support bar. The bearing is fixedly connected to the radial support bar. The fan impeller is rotatably connected to the radial support bar through the bearing.

[0007] Preferably, the air outlet end of the fan impeller faces the water outlet direction of the pipeline.

[0008] Preferably, the limiting portion is provided with an annular limiting groove, and the joint flange is fixedly connected with a limiting strip matching the annular limiting groove.

[0009] Preferably, a water-absorbing and swelling rubber gasket is installed between the joint flange and the pipeline.

[0010] In summary, the utility model has the following advantages and beneficial technical effects:

[0011] 1. In the utility model, the rubber layer adopts a neoprene rubber layer. Since neoprene rubber has good comprehensive physical and mechanical properties, and also has advantages such as heat resistance, corrosion resistance, tensile resistance and aging resistance, it can withstand the influence of high temperature and other environments for a long time; the ceramic fiber cloth layer has the advantages of high temperature resistance, low thermal conductivity and thermal shock resistance, can block the influence of the external high temperature environment on the rubber joint, effectively resist material deformation, enhance the high temperature resistance characteristics of the joint body, extend the service life, and ensure the normal and stable operation of the joint.

[0012] 2. The utility model is provided with a turbulent flow cooling mechanism, which utilizes the water flow output power to drive the fan impeller to rotate to take away heat, and at the same time disturbs the fluid to improve the transfer efficiency of the water flow in the pipeline.

[0013] 3. The setting of the annular limiting groove in the utility model increases the connection strength and stability between the joint flange and the joint body, ensuring the stability of the overall structure; the setting of the water-absorbing and expanding rubber gasket is used to ensure the tight connection between the pipeline and the joint flange, provide effective sealing, prevent fluid leakage at the connection, and can also effectively buffer vibration, reduce noise transmission, and provide a relatively quiet environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the utility model will become obvious and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0015] Figure 1 is the usage state diagram of the utility model;

[0016] Figure 2 is the sectional view of the utility model in the main view direction;

[0017] Figure 3 is the structural diagram of the turbulent flow cooling mechanism in the utility model;

[0018] Figure 4 is the sectional view of the utility model in the top view direction;

[0019] Figure 5 is along Figure 4 the partial enlarged view taken at A in

[0020] The reference numerals in the drawings are:

[0021] 1. Joint body; 11. Rubber layer; 12. High-temperature resistant layer; 13. Limiting part;

[0022] 2. Joint flange; 21. Limiting strip; 22. Rubber gasket; 23. Threaded hole;

[0023] 3. Turbulent flow cooling mechanism; 31. Arc support bar; 32. Radial support bar; 33. Bearing; 34. Fan impeller; 4. Pipe. Detailed implementation manners

[0024] The following will further elaborate on the present utility model in conjunction with the attached Figures 1 - 5 drawings:

[0025] As Figures 1 - 3 shown, this embodiment discloses a high-temperature resistant rubber joint, which includes a single-ball joint body 1, a metal joint flange 2, and a turbulent flow cooling mechanism 3. The joint body 1 includes an arc-shaped portion in the middle and two limiting portions 13 on both sides. There are two groups of limiting portions 13, which are symmetrically arranged and bonded to both sides of the arc-shaped portion. The arc-shaped portion includes a rubber layer 11 and a high-temperature resistant layer 12 arranged from the inside to the outside. The high-temperature resistant layer 12 covers and bonds to the outside of the rubber layer 11. The joint flange 2 is sleeved and abuts against the limiting portion 13. The turbulent flow cooling mechanism 3 is arranged in the cavity of the arc-shaped portion. The joint flange 2 is provided with a threaded hole 23 and is fixedly connected to the pipe 4 through a fastening bolt; the rubber layer 11 is a chloroprene rubber layer 11, and the high-temperature resistant layer 12 is a ceramic fiber cloth layer; the turbulent flow cooling mechanism 3 includes arc support bars 31, radial support bars 32, bearings 33, and fan impellers 34. There are two groups of arc support bars 31, which are symmetrically arranged and are crimped between the rubber layer 11 and the high-temperature resistant layer 12, and the arcs of the three match. The radial support bars 32 are arranged perpendicular to the axis direction of the joint body 1. It includes a fixed shaft in the center and support strips on both sides. The support strips on both sides respectively penetrate through the rubber layer 11 and are fixedly connected to the arc support bars 31. The inner ring of the bearing 33 is sleeved on the outer wall of the fixed shaft, and the fan impeller 34 is sleeved on the outer ring of the bearing 33 and is rotatably connected to the radial support bars 32; the air outlet end of the fan impeller 34 faces the water outlet direction of the pipe 4, and along the water outlet direction of the pipe 4, the fan impeller 34 and the radial support bars 32 are arranged in sequence.

[0026] As Figures 4 - 5 shown, the limiting portion 13 is provided with an annular limiting groove, and the joint flange 2 is integrally formed and fixedly connected with a limiting strip 21 that matches the annular limiting groove; a water-absorbing and swelling rubber gasket 22 is additionally installed between the joint flange 2 and the pipe 4.

[0027] The working principle of the high-temperature resistant rubber joint of the present utility model is as follows:

[0028] In this joint, a high-temperature resistant layer 12 is provided outside the rubber layer 11. By virtue of the characteristics of ceramic fiber, it blocks the high-temperature damage of the external environment to the rubber layer 11. And the rubber layer 11 is made of neoprene to further enhance the high-temperature resistant characteristics of the joint body 1. The joint flange 2 is sleeved on the outer ring of the joint body 1. In addition, a rubber gasket 22 is installed on the side far from the arc portion, and then the joint flange 2 and the pipeline 4 are fixed by fastening bolts. The water-absorbing and expanding rubber material realizes the sealing of the pipeline 4 to avoid fluid leakage. When the fluid in the pipeline 4 passes through, it pushes the back of the fan impeller 34, and the back generates rotation after being stressed, accelerating the circulation of air and fluid in the pipeline 4 and realizing the auxiliary cooling inside the rubber joint.

[0029] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A high temperature resistant rubber joint, characterized in that: It includes a joint body, a joint flange and a turbulent cooling mechanism. The joint body includes an arc-shaped portion and a limiting portion. The limiting portion has multiple groups, which are symmetrically arranged and fixedly connected to the two ends of the arc-shaped portion. The arc-shaped portion includes a rubber layer and a high-temperature resistant layer. The high-temperature resistant layer covers and is fixedly connected to the rubber layer. The joint flange is sleeved on the outer wall of the joint body and clamped with the limiting portion. The turbulent cooling mechanism is arranged on the inner side of the arc-shaped portion. The joint flange is provided with a threaded hole and is fixedly connected to the pipeline by a fastener.

2. A high temperature resistant rubber joint according to claim 1, characterized in that: The rubber layer is a chloroprene rubber layer, and the high temperature resistant layer is a ceramic fiber cloth layer.

3. A high temperature resistant rubber joint according to claim 2, characterized in that: The turbulent cooling mechanism includes an arc-shaped support bar, a radial support bar, a bearing and an impeller. The arc-shaped support bar is crimped between the rubber layer and the high-temperature resistant layer. The radial support bar passes through the rubber layer and is fixedly connected to the arc-shaped support bar. The bearing is fixedly connected to the radial support bar. The impeller is rotatably connected to the radial support bar via the bearing.

4. A high temperature resistant rubber joint according to claim 3, characterized in that: The air outlet end of the impeller faces the water outlet direction of the pipeline.

5. A high temperature resistant rubber joint according to claim 4, characterized in that: The limiting portion is provided with an annular limiting groove, and the joint flange is fixedly connected with a limiting strip matching the annular limiting groove.

6. A high temperature resistant rubber joint according to claim 5, characterized in that: A water-swelling rubber gasket is installed between the joint flange and the pipeline.

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