Flange type rubber joint

Abstract

The utility model relates to the technical field of rubber joints, and provides a flange type rubber joint which comprises a rubber joint body, a first flange and a second flange are installed at the two ends of the rubber joint body respectively, and a first connecting ring and a second connecting ring are fixedly arranged on the side wall of the first flange and the side wall of the second flange in a sleeved mode respectively. An anti-pull-off assembly is connected between the first connecting ring and the second connecting ring; the anti-pulling-off assembly comprises a first connecting block and a second connecting block which are fixed to the outer side wall of the first connecting ring and the outer side wall of the second connecting ring respectively, a screw movably penetrates through the first connecting block, and a connecting rod is fixed to the second connecting block. And nuts matched with the threads of the screw rod are respectively sleeved on two sides of the first connecting block of the screw rod. The rubber joint has the beneficial effects that the rubber joint body can be allowed to axially displace and angularly deflect while the limiting and anti-pull-off effects are realized, and the deflection characteristic and the displacement compensation effect of the rubber joint body are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber joints, and specifically, to a flange-type rubber joint. Background Art

[0002] A flange-type rubber joint is a connecting device composed of two parts: a flange and a rubber joint, mainly used to compensate for the displacement and deformation of pipelines caused by temperature changes, pressure changes, etc. The design features of the flange-type rubber joint include shock absorption and noise reduction, reliable connection, corrosion resistance, etc. It consists of a rubber body and two loose flanges. The rubber body is made by using the air-blowing die process and high-temperature vulcanization. This kind of joint has the advantages of small volume, light weight, good elasticity, convenient installation and maintenance, etc. It can generate axial, transverse, radial, and angular displacements during radial installation, and is not restricted by the non-concentricity of the pipeline or the non-parallelism of the flanges.

[0003] There is a risk of pull-off phenomenon in the work of the flange-type rubber joint. Therefore, some anti-pull-off components are used to limit the two ends of the flange. However, while limiting, the movement of the rubber joint will be restricted at the same time, resulting in that the rubber joint cannot deflect at any angle during use, restricting the flexible characteristics of the rubber joint during work, thereby reducing the displacement compensation effect and affecting the overall stability and safety of the pipeline system. Summary of the Utility Model

[0004] The utility model provides a flange-type rubber joint. The anti-pull-off component can limit the axial displacement range of the first flange. In addition, by rotatably connecting the screw rod and the connecting rod, the first flange and the second flange can be angularly offset, achieving the effect of limiting and preventing pull-off while allowing the rubber joint body to have axial displacement and angular deflection, improving the flexible characteristics and displacement compensation effect of the rubber joint body, and contributing to maintaining the stability and safety of the pipeline system.

[0005] Therefore, the technical solutions adopted are as follows:

[0006] A flange-type rubber joint includes a rubber joint body. The first flange and the second flange are respectively installed at both ends of the rubber joint body. The first connecting ring and the second connecting ring are respectively sleeved and fixed on the side walls of the first flange and the second flange. An anti-pull-off component is connected between the first connecting ring and the second connecting ring.

[0007] The anti-pull-off component includes a first connecting block and a second connecting block respectively fixed on the outer side walls of the first connecting ring and the second connecting ring. A screw rod is movably penetrated through the first connecting block. A connecting rod is fixed on the second connecting block, and the screw rod and the connecting rod are rotatably connected. A nut thread-matching with the screw rod is sleeved on both sides of the first connecting block of the screw rod.

[0008] Further technical solution lies in that there are two sets of the anti-pulling-off components, which are oppositely arranged around the first connecting ring and the second connecting ring.

[0009] Further technical solution lies in that a turntable is fixed at the connecting end of the connecting rod and the screw rod, and the screw rod is rotatably connected with the turntable.

[0010] Further technical solution lies in that a convex block is fixed at the end of the screw rod, a slider is fixed on the convex block, an arc-shaped chute is formed on the turntable, and the slider can be inserted into the arc-shaped chute and slide relative to it.

[0011] Further technical solution lies in that fixing rings are fixed on the inner walls of the first connecting ring and the second connecting ring, annular grooves are formed on the outer side walls of the first flange and the second flange, and the fixing rings are embedded into the annular grooves and are slidably connected with the annular grooves.

[0012] Further technical solution lies in that bolts are inserted through the outer walls of the first connecting ring and the second connecting ring and extend into the annular grooves and can abut against their inner walls.

[0013] The working principle and beneficial effects of this application are as follows:

[0014] By arranging the anti-pulling-off components, the axial displacement range of the first flange can be limited. In addition, by rotatably connecting the screw rod and the connecting rod, the first flange and the second flange can be angularly offset, achieving the function of limiting and preventing pulling-off while allowing the rubber joint body to have axial displacement and angular deflection, improving the flexibility characteristics and displacement compensation effect of the rubber joint body, and contributing to maintaining the stability and safety of the pipeline system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further elaborates on this application in detail in conjunction with the drawings and specific embodiments.

[0016] Figure 1 is the overall structural schematic diagram of this application;

[0017] Figure 2 is the partial structural schematic diagram of this application;

[0018] Figure 3 is Figure 2 the enlarged structural schematic diagram at A in

[0019] Figure 4 is Figure 2 the enlarged structural schematic diagram at B in

[0020] Among them, each reference numeral in the drawings:

[0021] 1. Rubber joint body; 2. First flange; 3. Second flange; 4. First connecting ring; 5. Anti-pull-off component; 51. Screw; 52. First connecting block; 53. Connecting rod; 54. Second connecting block; 55. Nut; 56. Convex block; 57. Slide block; 58. Turntable; 59. Arc-shaped chute; 6. Fixed ring; 7. Second connecting ring; 8. Bolt. Detailed implementation manner

[0022] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0023] As Figures 1 - 4 shown, the present application provides a flange-type rubber joint, including a rubber joint body 1. The two ends of the rubber joint body 1 are respectively installed with a first flange 2 and a second flange 3. A first connecting ring 4 and a second connecting ring 7 are respectively sleeved and fixed on the side walls of the first flange 2 and the second flange 3. An anti-pull-off component 5 is connected between the first connecting ring 4 and the second connecting ring 7; the anti-pull-off component 5 includes a first connecting block 52 and a second connecting block 54 respectively fixed to the outer side walls of the first connecting ring 4 and the second connecting ring 7. A screw 51 is movably penetrated through the first connecting block 52. A connecting rod 53 is fixed on the second connecting block 54, and the screw 51 and the connecting rod 53 are rotatably connected. Nuts 55 that are thread-matched with the screw 51 are respectively sleeved on both sides of the first connecting block 52 of the screw 51.

[0024] In this embodiment, this solution is used to compensate for the displacement and deformation of the pipeline caused by temperature changes, pressure changes, etc. Specifically, the first flange 2 and the second flange 3 are connected to the pipeline. When the rubber joint body 1 is working, the first connecting ring 4 is subjected to tensile or compressive forces, driving the outer first flange 2 to move on the screw 51. By setting the two nuts 55, the axial displacement range of the first flange 2 can be limited. In addition, by rotatably connecting the screw 51 and the connecting rod 53, the first flange 2 and the second flange 3 can be angularly offset, achieving the function of limiting anti-pull-off while allowing the rubber joint body 1 to have axial displacement and angular deflection, improving the flexibility characteristics and displacement compensation effect of the rubber joint body 1, and maintaining the stability and safety of the pipeline system.

[0025] Among them, the axial displacement range of the first flange 2 can be limited by controlling the distance between the two nuts 55.

[0026] As Figure 4As shown, a turntable 58 is fixed at the connection end of the connecting rod 53 and the screw rod 51, and the screw rod 51 is rotatably connected to the turntable 58. A convex block 56 is fixed at the end of the screw rod 51, and a slider 57 is fixed on the convex block 56. An arc-shaped chute 59 is formed on the turntable 58, and the slider 57 can be inserted into the arc-shaped chute 59 and slide relative to it.

[0027] In this embodiment, when the rubber joint body 1 is offset in angle during operation, the screw rod 51 and the turntable 58 rotate relative to each other, and the convex block 56 can move synchronously with the screw rod 51, so that the convex block 56 can slide in the arc-shaped chute 59. Thus, the arc-shaped chute 59 can be used to limit the displacement angle of the screw rod 51, and further limit the deflection angle of the rubber joint body 1 during the displacement compensation process, preventing the rubber joint body 1 from being damaged due to excessive angle deflection.

[0028] As Figures 1 - 2 shown, fixing rings 6 are fixed on the inner walls of the first connecting ring 4 and the second connecting ring 7. Annular grooves are formed on the outer side walls of the first flange 2 and the second flange 3. The fixing rings 6 are embedded in the annular grooves and are slidably connected to the annular grooves. 6. According to the above-mentioned flange-type rubber joint, bolts 8 extending into the annular grooves and capable of abutting against their inner walls are inserted through the outer walls of the first connecting ring 4 and the second connecting ring 7.

[0029] In this embodiment, by providing the fixing rings 6 and the annular grooves, the first connecting ring 4 and the second connecting ring 7 can rotate on the outer side walls of the first flange 2 and the second flange 3 respectively, driving a pair of anti-pull-off assemblies 5 to rotate synchronously, thereby controlling the angular displacement direction of the rubber joint body 1. In addition, the bolts 8 are provided to fix the first connecting ring 4 and the second connecting ring 7.

[0030] Working principle:

[0031] Connect the first flange 2 and the second flange 3 to the pipeline. When the rubber joint body 1 is working, the first connecting ring 4 is stretched or compressed, driving the outer first flange 2 to move on the screw rod 51. The axial displacement range of the first flange 2 can be limited by providing two nuts 55. In addition, by rotatably connecting the screw rod 51 and the connecting rod 53, the first flange 2 and the second flange 3 can be offset in angle.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flange type rubber joint, comprising a rubber joint body (1), wherein a first flange (2) and a second flange (3) are respectively installed at two ends of the rubber joint body (1), characterized in that: A first connecting ring (4) and a second connecting ring (7) are respectively sleeved and fixed on the side walls of the first flange (2) and the second flange (3), and an anti-pull-off component (5) is connected between the first connecting ring (4) and the second connecting ring (7); The anti-pull-off assembly (5) comprises a first connecting block (52) and a second connecting block (54) respectively fixed to the outer side walls of the first connecting ring (4) and the second connecting ring (7); a screw rod (51) is movably passed through the first connecting block (52); a connecting rod (53) is fixed to the second connecting block (54); the screw rod (51) and the connecting rod (53) are rotatably connected; and a nut (55) matching the thread of the screw rod (51) is respectively sleeved on both sides of the first connecting block (52).

2. A flange type rubber joint according to claim 1, characterized in that: The anti-pull-off components (5) have two groups and are arranged around the first connecting ring (4) and the second connecting ring (7) so as to be opposite to each other.

3. A flange type rubber joint according to claim 1, characterized in that: A rotating disk (58) is fixed to the connecting end of the connecting rod (53) and the screw rod (51), and the screw rod (51) and the rotating disk (58) are rotatably connected.

4. A flange type rubber joint according to claim 3, characterized in that: A protrusion (56) is fixed at the end of the screw rod (51), a slider (57) is fixed on the protrusion (56), an arc-shaped slide groove (59) is provided on the rotating disk (58), and the slider (57) can be inserted into the arc-shaped slide groove (59) and slide relative to the arc-shaped slide groove (59).

5. The flange type rubber joint according to claim 1, characterized in that: A fixing ring (6) is fixed on the inner wall of the first connecting ring (4) and the second connecting ring (7), and an annular groove is formed on the outer wall of the first flange (2) and the second flange (3), and the fixing ring (6) is embedded in the annular groove and is slidably connected to the annular groove.

6. A flange type rubber joint according to claim 1, characterized in that: Bolts (8) are provided on the outer walls of the first connecting ring (4) and the second connecting ring (7), extending to the inside of the annular groove and being capable of abutting against the inner wall thereof.

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