Lining steel flange sealing gasket

Abstract

The utility model relates to the technical field of sealing gaskets, in particular to a lining steel flange sealing gasket which comprises a lining steel gasket and a rubber outer layer, the rubber outer layer is arranged on the outer side of the lining steel gasket, sealing structures are arranged on the two sides of the rubber outer layer, and each sealing structure comprises a round block. The sealing gaskets on the two sides are extruded by the pipelines on the two sides to move inwards, the sealing gaskets drive the sliding rods to move inwards, the sliding rods drive the round blocks to move inwards, and due to the fact that the round blocks are in sealed connection with the rubber outer layer, in the inward sliding process of the round blocks, the pressure intensity of cavities between the round blocks and the rubber outer layer is increased, and the sealing effect is improved. According to the principle of atmospheric pressure, the sealing gaskets have the movement tendency of outward movement, the sealing gaskets on the two sides are tightly attached to the corresponding pipelines respectively, when gaps exist in the sealing gaskets, pressure borne by the round blocks can drive the sealing gaskets to abut against the pipelines, and therefore the gaps between the sealing gaskets and the pipelines are offset.

Description

Technical Field

[0001] The utility model relates to the technical field of gaskets, in particular to a steel-lined flange gasket. Background Art

[0002] The flange gaskets on the market are mainly rubber gaskets and metal wound gaskets. The rubber gaskets have the problem of being soft and inconvenient for fixed installation. The metal wound gaskets have problems such as inconvenient screw hole opening, flange deformation when the screw compresses the thin flange, which cannot guarantee sealing, and easy rusting in a corrosive environment. Therefore, a steel-lined flange gasket is designed.

[0003] During the use of the existing steel-lined flange gasket, only the rubber wrapped by the inner steel pad is used to seal between the two side pipelines. However, due to long-term use, the rubber wrapped outside the inner steel pad is prone to aging and corrosion, so that there is an easy gap between the steel-lined flange gasket and the pipeline, and the liquid or gas flowing through the pipeline is prone to leakage, reducing the sealing effect of the existing steel-lined flange gasket on the two side pipelines.

[0004] At the same time, the existing steel-lined flange gasket usually fixes the steel-lined flange gasket by passing the bolts for fixing the pipeline flanges on both sides through the connection holes of the steel-lined flange gasket. However, due to the lack of a limiting structure in the connection holes of the steel-lined flange gasket, when the bolts pass through the connection holes of the steel-lined flange gasket, there is a gap between the connection holes of the steel-lined flange gasket and the bolts, resulting in easy deviation in the fixation of the steel-lined flange gasket, thus affecting the sealing effect of the steel-lined flange gasket. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems that leakage is likely to occur during long-term use, affecting the sealing performance of the steel-lined flange gasket for the two side pipelines, and the gap between the connection holes of the inner steel pad and the bolts causes the steel-lined flange gasket to be skewed, affecting the sealing effect of the steel-lined flange gasket for the two side pipelines, and to propose a steel-lined flange gasket.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] Design a steel-lined flange gasket, including an inner steel pad and a rubber outer layer. The outer side of the inner steel pad is provided with a rubber outer layer. Sealing structures are arranged on both sides of the rubber outer layer. The sealing structure includes round blocks. The outer walls of multiple round blocks are all in contact with the rubber outer layer. The outer ends of the round blocks are fixedly connected to sliding rods. The outer ends of multiple sliding rods are all fixedly connected to the gasket.

[0008] Preferably, the outer walls of multiple sliding rods are all slidably connected to the rubber outer layer.

[0009] Preferably, the outer wall of the gasket fits with the rubber outer layer.

[0010] Preferably, a plurality of positioning holes are respectively machined on the outer side of the inner lining steel gasket.

[0011] Preferably, reinforcing structures are arranged on both sides of the inner lining steel gasket. The reinforcing structures include springs. One end of each spring is fixedly connected with the rubber outer layer, and the other end of each spring is fixedly connected with a pressing block.

[0012] Preferably, the outer walls of the plurality of pressing blocks are respectively slidably connected with both sides of the rubber outer layer.

[0013] For a steel-lined flange gasket proposed by the present utility model, the beneficial effects are as follows: When the gaskets on both sides are squeezed by the pipelines on both sides, the gaskets move inward. The gaskets drive the sliding rods to move inward, and the sliding rods drive the round blocks to move inward. Since the connection between the round blocks and the rubber outer layer is sealed, when the round blocks slide inward, the pressure in the cavity between the round blocks and the rubber outer layer increases. Using the principle of atmospheric pressure, the gaskets have a tendency to move outward. The gaskets on both sides are respectively in close contact with the corresponding pipelines. When there are gaps in the gaskets, the pressure received by the round blocks will drive the gaskets to press against the pipelines, thereby offsetting the gaps between the gaskets and the pipelines, improving the sealing effect of the steel-lined flange gasket for connecting the pipelines on both sides, and avoiding the situation of easy leakage during long-term use;

[0014] When the bolts pass through the connection holes of the inner lining steel gasket, the bolts squeeze the plurality of pressing blocks on the outside to move outward. The pressing blocks drive the springs to compress, so that the pressing blocks are always affected by the elastic force of the springs and press against the bolts, thereby fixing the steel-lined flange gasket, and avoiding the occurrence of gaps between the connection holes of the inner lining steel gasket and the bolts, which may cause the steel-lined flange gasket to be skewed and affect the sealing effect of the steel-lined flange gasket for the pipelines on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a front view structural diagram of the present utility model;

[0017] Figure 3 is Figure 2 a sectional structural diagram of

[0018] Figure 4 is Figure 3 a structural diagram of A in

[0019] Figure 5 is Figure 3 a side view structural diagram of

[0020] Figure 6 isFigure 5 Schematic diagram of the structure of B in the middle.

[0021] In the figure: 1. Inner lining steel pad, 2. Rubber outer layer, 3. Sealing structure, 301. Round block, 302. Slide bar, 303. Sealing gasket, 4. Reinforcing structure, 4a1. Spring, 4a2. Tightening block, 4b1. Protective pad, 5. Positioning hole. Specific implementation mode

[0022] The present utility model will be further described below in conjunction with the accompanying drawings:

[0023] Embodiment 1:

[0024] Referring to the attached Figures 1-6 : In this embodiment, a steel-lined flange sealing gasket includes an inner lining steel pad 1 and a rubber outer layer 2. The outer side of the inner lining steel pad 1 is provided with a rubber outer layer 2. Sealing structures 3 are provided on both sides of the rubber outer layer 2. The sealing structure 3 includes round blocks 301. The outer walls of a plurality of round blocks 301 are all in contact with the rubber outer layer 2. The outer ends of the round blocks 301 are fixedly connected to the slide bars 302. The outer ends of a plurality of slide bars 302 are all fixedly connected to the sealing gaskets 303. The outer walls of a plurality of slide bars 302 are all slidably connected to the rubber outer layer 2. At the same time, after the pipelines on both sides are connected, the sealing gaskets 303 on both sides are squeezed by the pipelines on both sides, causing the sealing gaskets 303 to move inward. The sealing gaskets 303 drive the slide bars 302 to move inward;

[0025] The slide bars 302 drive the round blocks 301 to move inward. Since the connection between the round blocks 301 and the rubber outer layer 2 is a sealed connection, when the round blocks 301 slide inward, the pressure in the cavity between the round blocks 301 and the rubber outer layer 2 increases. Using the principle of atmospheric pressure, the sealing gaskets 303 have a tendency to move outward. The sealing gaskets 303 on both sides are respectively in close contact with the corresponding pipelines. When there is a gap in the sealing gasket, the pressure received by the round blocks 301 will drive the sealing gaskets 303 to abut against the pipelines, thereby offsetting the gap between the sealing gaskets 303 and the pipelines, improving the sealing effect of the steel-lined flange sealing gasket on the connection of the pipelines on both sides, and avoiding the situation of easy leakage during long-term use. The outer walls of the sealing gaskets 303 are in contact with the rubber outer layer 2. A plurality of positioning holes 5 are respectively machined on the outer side of the inner lining steel pad 1.

[0026] Reinforcing structures 4 are provided on both sides of the inner lining steel gasket 1. When sealing the pipelines on both sides through the lining steel flange gasket, bolts on both sides are passed through the flanges of the connecting pipelines on both sides and the connecting holes 5 of the lining steel flange gasket, and the lining steel flange gasket is placed between the flanges of the connecting pipelines on both sides. Subsequently, the bolts are used in conjunction with nuts to fix the pipelines on both sides. At the same time, when the bolts pass through the connecting holes 5 of the inner lining steel gasket 1, the bolts squeeze the multiple outer abutting blocks 4a2 to move outward, and the abutting blocks 4a2 drive the springs 4a1 to compress, so that the abutting blocks 4a2 are always pressed against the bolts under the elastic force of the springs 4a1, thereby fixing the lining steel flange gasket and preventing gaps from appearing between the connecting holes 5 of the inner lining steel gasket 1 and the bolts, which may cause the lining steel flange gasket to skew and affect the sealing effect of the lining steel flange gasket on the pipelines on both sides. The reinforcing structure 4 includes springs 4a1. One end of the spring 4a1 is fixedly connected to the rubber outer layer 2, and the other end of the spring 4a1 is fixedly connected to the abutting blocks 4a2. The outer walls of the multiple abutting blocks 4a2 are respectively slidably connected to both sides of the rubber outer layer 2.

[0027] Working principle:

[0028] When sealing the pipelines on both sides through the lining steel flange gasket, bolts on both sides are passed through the flanges of the connecting pipelines on both sides and the connecting holes 5 of the lining steel flange gasket, and the lining steel flange gasket is placed between the flanges of the connecting pipelines on both sides. Subsequently, the bolts are used in conjunction with nuts to fix the pipelines on both sides. At the same time, when the bolts pass through the connecting holes 5 of the inner lining steel gasket 1, the bolts squeeze the multiple outer abutting blocks 4a2 to move outward, and the abutting blocks 4a2 drive the springs 4a1 to compress, so that the abutting blocks 4a2 are always pressed against the bolts under the elastic force of the springs 4a1, thereby fixing the lining steel flange gasket and preventing gaps from appearing between the connecting holes 5 of the inner lining steel gasket 1 and the bolts, which may cause the lining steel flange gasket to skew and affect the sealing effect of the lining steel flange gasket on the pipelines on both sides;

[0029] After the pipelines on both sides are connected, the gaskets 303 on both sides are squeezed by the pipelines on both sides, causing the gaskets 303 to move inward. The gaskets 303 drive the slide rods 302 to move inward, and the slide rods 302 drive the round blocks 301 to move inward. Since the round block 301 is in a sealed connection with the rubber outer layer 2, when the round block 301 slides inward, the pressure in the cavity between the round block 301 and the rubber outer layer 2 increases. Using the principle of atmospheric pressure, the gaskets 303 have a tendency to move outward. The gaskets 303 on both sides are respectively in close contact with the corresponding pipelines. When there are gaps in the gaskets, the pressure on the round block 301 will drive the gaskets 303 to press against the pipelines, thereby offsetting the gaps between the gaskets 303 and the pipelines, improving the sealing effect of the lining steel flange gasket on the connection of the pipelines on both sides, and preventing leakage from easily occurring during long-term use.

[0030] Example 2:

[0031] Refer to the appendix Figures 1-6 : In this embodiment, a gasket for a steel-lined flange, wherein the strengthening structure 4 may further include a protective pad 4b1. The inner wall of the protective pad 4b1 is fixedly connected to the abutting block 4a2. The friction between the abutting block 4a2 and the connection position is increased by the protective pad 4b1, improving the stability of the installation of the gasket for the steel-lined flange.

[0032] Although the present utility model has been illustrated and described by reference to the preferred embodiments, those of ordinary skill in the art should understand that various changes in form and detail may be made within the scope of the claims.

Claims

1. A steel-lined flange gasket, comprising a steel-lined gasket (1) and a rubber outer layer (2), wherein the rubber outer layer (2) is arranged on the outer side of the steel-lined gasket (1), and is characterized in that: Sealing structures (3) are arranged on both sides of the rubber outer layer (2). The sealing structure (3) includes round blocks (301). The outer walls of multiple round blocks (301) are all in contact with the rubber outer layer (2). The outer ends of the round blocks (301) are fixedly connected to sliding rods (302). The outer ends of multiple sliding rods (302) are fixedly connected to a sealing gasket (303).

2. The gasket for lining steel flange according to claim 1, wherein: The outer walls of multiple sliding rods (302) are all slidably connected to the rubber outer layer (2).

3. A steel-lined flange gasket according to claim 1, characterized in that: The outer wall of the sealing gasket (303) is in contact with the rubber outer layer (2).

4. A steel-lined flange gasket according to claim 1, characterized in that: A plurality of positioning holes (5) are respectively machined on the outer side of the inner lining steel pad (1).

5. A steel-lined flange gasket according to claim 1, characterized in that: Reinforcing structures (4) are arranged on both sides of the inner lining steel pad (1). The reinforcing structure (4) includes a spring (4a1). One end of the spring (4a1) is fixedly connected to the rubber outer layer (2). The other end of the spring (4a1) is fixedly connected to a pressing block (4a2).

6. The gasket for lining steel flange according to claim 5, wherein: The outer walls of multiple pressing blocks (4a2) are respectively slidably connected to both sides of the rubber outer layer (2).

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