A sealing rubber part

Abstract

The utility model discloses a sealing rubber part, which relates to the technical field of mechanical sealing gaskets. The utility model comprises an outer ring and an inner ring arranged coaxially with the outer ring; the inner edge of the outer ring is evenly provided with a plurality of notches, and a partition is formed between two adjacent notches, and the inner edge of one of the partitions is fixedly connected with the outer edge of the inner ring, so that the outer ring and the inner ring form a whole; the surface of the outer ring is provided with a gap radially, and the gap extends from the inner edge of the outer ring to the outer edge of the outer ring. The utility model arranges the outer ring and the inner ring concentrically, the inner ring is mainly used for sealing the pipe inside the flange, and the outer ring is mainly used for sealing the environment outside the flange; at the same time, a gap is radially provided on the surface of the outer ring, so that the outer ring can be stretched and unfolded, and the flange bolts are wrapped from the peripheral side thereof, and the inner ring can be inserted into the gap of the flange plate from between two adjacent bolts, so that the gasket can be installed or removed without completely disassembling the flange, which greatly improves the operation efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical sealing pads, in particular to a sealing rubber piece. Background Art

[0002] Rubber flange gasket is the most basic and widely used gasket. It is made of polymer vulcanized, fillers, pigments and various additives to form synthetic rubber. It has excellent compressibility and resilience. It only needs a very low preload to play an effective sealing role under low temperature and low pressure conditions. It is easy to disassemble and assemble, and can also achieve a good sealing effect on uneven sealing surfaces. Because rubber has excellent expansibility and anti-permeability, it forms a very effective seal to resist the passage of gas and fluid. Commonly used rubber gasket materials include natural rubber, nitrile rubber, chloroprene rubber, ethylene propylene rubber, silicone rubber, fluororubber, etc.

[0003] At present, when installing and removing rubber flange gaskets on pipeline flanges, it is necessary to first completely remove the flanges, then put the flange gaskets on the flanges along the bolts, and finally assemble the flanges and tighten them with nuts. The efficiency of the entire installation and removal process is low. If it is a long combined pipeline, replacing a flange gasket may require disassembling several flanges, further reducing the construction efficiency. Utility Model Content

[0004] The utility model aims to provide a sealing rubber part, which is provided with an outer ring and an inner ring, and a gap is radially opened on the surface of the outer ring, the gap extends from the inner edge of the outer ring to the outer edge of the outer ring, so that the gasket can be installed or removed without completely disassembling the flange, thereby solving the problem of low efficiency in the installation and removal process of the flange gasket in the prior art.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a sealing rubber part, comprising an outer ring and an inner ring coaxially arranged with the outer ring; a plurality of notches are evenly opened on the inner edge of the outer ring, a partition is formed between two adjacent notches, an inner edge of one of the partitions is fixedly connected with the outer edge of the inner ring, so that the outer ring and the inner ring form a whole; a gap is opened in the radial direction on the surface of the outer ring, and the gap extends from the inner edge of the outer ring to the outer edge of the outer ring.

[0007] As a preferred technical solution of the present utility model, the notch adopts a "U"-shaped structure.

[0008] As a preferred technical solution of the present utility model, the gap is in a straight line shape.

[0009] As a preferred technical solution of the present utility model, the gap is stepped to increase the connection area at the outer ring joint and improve the sealing performance.

[0010] As a preferred technical solution of the utility model, the gap is opened on the surface of one of the partitions on the outer ring, and the partition is not connected to the inner ring.

[0011] As a preferred technical solution of the present utility model, the gap is provided on a partition away from the connection between the outer ring and the inner ring.

[0012] As a preferred technical solution of the utility model, the outer edge of the outer ring is fixedly connected with two hand-kneading parts on both sides of the gap.

[0013] The utility model has the following beneficial effects:

[0014] The utility model concentrically arranges an outer ring and an inner ring, the inner ring is mainly used for sealing the pipeline inside the flange, and the outer ring is mainly used for sealing the environment outside the flange; at the same time, a gap is opened radially on the surface of the outer ring, so that the outer ring can be stretched and expanded, and the flange bolts are wrapped from the circumference thereof, and the inner ring can be inserted into the gap of the flange plate between two adjacent bolts, so that the gasket can be installed or removed without completely disassembling the flange, thereby greatly improving the operating efficiency and ensuring the sealing performance of the flange connection.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a front view of the sealing rubber member of the utility model;

[0018] Figure 2 It is a front view of another embodiment of the sealing rubber member of the utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the structure of the middle sealing rubber part;

[0020] Figure 4 It is a front view of another embodiment of the sealing rubber member of the utility model;

[0021] Figure 5The utility model is a schematic diagram of the structure of the sealing rubber component installed on the flange.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1-outer ring, 2-inner ring, 101-notch, 102-partition, 103-gap, 3-hand-pinch portion. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be understood that terms such as "end", "upper", "lower", "side", "top", "bottom", "length", "inside", and "surface" indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the present invention.

[0026] At present, when installing and disassembling the rubber flange gasket at the pipeline flange, it is necessary to first completely disassemble the flange, then put the flange gasket on the flange along the bolt, and finally assemble the flange and tighten it with nuts. The efficiency of the entire installation and disassembly process is low. If it is a long combined pipeline, replacing a flange gasket may require disassembling several flanges, further reducing the construction efficiency. Based on this, the present embodiment provides a sealing rubber part, which can achieve the installation or replacement of the sealing gasket without completely disassembling the flange, significantly improving the installation efficiency of the sealing gasket.

[0027] See also Figure 1 As shown, the sealing rubber member includes an outer ring 1 and an inner ring 2 coaxially arranged with the outer ring 1. The inner edge of the outer ring 1 is evenly provided with eight notches 101 for matching with flange bolts. The notches 101 adopt a "U"-shaped structure, which facilitates the bolts to be inserted into the notches 101. A partition 102 is formed between two adjacent notches 101, that is, eight partitions 102 are formed on the inner edge of the outer ring 1. The inner edge of one of the partitions 102 is fixedly connected to the outer edge of the inner ring 2, so that the outer ring 1 and the inner ring 2 form a whole.

[0028] In this embodiment, a gap 103 is radially provided on the surface of the outer ring 1. The gap 103 is formed by truncating the outer ring 1 and can be in a straight line shape and extends from the inner edge of the outer ring 1 to the outer edge of the outer ring 1. The gap 103 is preferably provided on the partition 102 away from the connection between the outer ring 1 and the inner ring 2.

[0029] In a preferred embodiment, see Figure 2 and Figure 3 As shown, the gap 103 is in a stepped shape. When the outer ring 1 is spliced ​​together at the gap 103 , it has a longer contact surface, thereby improving the sealing performance of the outer ring 1 .

[0030] In another preferred embodiment, see Figure 4 As shown, the outer edge of the outer ring 1 is fixedly connected with two hand-holding parts 3 on both sides of the gap 103, which is convenient for the installation and removal of the rubber pad.

[0031] When installing the sealing rubber member provided in this embodiment, please refer to Figure 5 As shown, only a certain gap such as 1 cm is required to be loosened between the two connected flanges. Then, the inner ring 2 is inserted into the position of the inner ring of the flange between the two bolts. Since the outer ring 1 and the inner ring 2 are both made of rubber in one piece, the outer ring 1 and the inner ring 2 have strong deformability and foldability to meet the requirement of inserting the inner ring 2 into the inner ring of the flange. After the inner ring 2 is inserted, hold the gripping part 3 with both hands, insert each notch 101 into the corresponding bolt, and finally align the gap 103, so as to complete the installation of the sealing rubber part, and the construction operation efficiency is high. After the sealing rubber part is installed, tighten the nut on the flange, that is, press the sealing rubber part between the two flanges. The inner ring 2 is mainly used to seal the liquid flowing in the pipeline, and the outer ring 1 is mainly used to isolate the gas and water vapor in the external environment. If the inner ring 2 is damaged, the outer ring 1 can also play the role of sealing the liquid flowing in the pipeline, which is equivalent to forming a double-layer seal, and the use effect is good.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sealing rubber part, characterized in that: It comprises an outer ring (1) and an inner ring (2) arranged coaxially with the outer ring (1); The inner edge of the outer ring (1) is evenly provided with a plurality of notches (101), and a partition (102) is formed between two adjacent notches (101), wherein the inner edge of one of the partitions (102) is fixedly connected to the outer edge of the inner ring (2), so that the outer ring (1) and the inner ring (2) form a whole; A gap (103) is formed on the surface of the outer ring (1) in the radial direction, and the gap (103) extends from the inner edge of the outer ring (1) to the outer edge of the outer ring (1).

2. A sealing rubber component according to claim 1, characterized in that: The notch (101) adopts a "U"-shaped structure.

3. A sealing rubber member according to claim 1, characterized in that: The gap (103) is in a straight line shape.

4. A sealing rubber member according to claim 3, characterized in that: The gap (103) is in a stepped shape.

5. A sealing rubber component according to any one of claims 1 to 4, characterized in that: The gap (103) is opened on the surface of one of the partitions (102) on the outer ring (1), and the partition (102) is not connected to the inner ring (2).

6. A sealing rubber member according to claim 5, characterized in that: The gap (103) is provided on a partition (102) away from a connection point between the outer ring (1) and the inner ring (2).

7. A sealing rubber member according to claim 6, characterized in that: The outer edge of the outer ring (1) is fixedly connected to two hand-kneading portions (3) on both sides of the gap (103).

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