Flange with sealing groove

Abstract

The utility model discloses a flange with a sealing groove, which relates to the technical field of flanges, and comprises two groups of symmetrically arranged flange plates, one side of each flange plate is provided with an auxiliary plate, and the two groups of auxiliary plates are fixedly connected through a plurality of uniformly arranged fastening bolts; a sealing ring is arranged between the two groups of flange plates, a mounting groove matched with the auxiliary disc is formed in the outer side of one side of each flange plate, a plurality of positioning blocks are arranged on the side wall in each mounting groove, and a plurality of through holes matched with the fastening bolts are formed in the inner wall of each mounting groove; a sealing groove matched with the sealing ring is formed in the middle of the other side of the flange plate; and a plurality of positioning columns are arranged on the inner side of the other side of one group of flange plates. By optimizing the sealing structure, improving the connecting precision, enhancing the deformation resistance, being convenient and fast to install and other improvements, efficient sealing, precise installation and wide adaptability are achieved, meanwhile, the maintenance cost is reduced, and the sealing device is particularly suitable for industrial equipment, high-pressure pipelines and harsh environments.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange technical field, concretely related to a flange with sealing groove. BACKGROUND

[0002] Flange, also called flange flange or lug. Flange is the connecting part between pipes, used for the connection between pipe ends; also used on the flange of equipment, used for the connection between two devices, such as reducer flange. Flange connection or flange joint refers to a combined sealing structure of flange, gasket and bolt. Pipe flange refers to the flange used for pipe connection in pipe device, and refers to the flange of equipment.

[0003] For example, Chinese patent CN214197666U discloses a kind of high sealing flange, including first flange and second flange, first flange and second flange are matched and arranged with flange hole, first flange and second flange are connected by bolt, sealing groove is arranged around flange hole on first flange, sealing convex ring matched with sealing groove is arranged on second flange, the flange has strong sealing performance, simple structure, convenient installation. However, since the flange is usually fixed by bolt when installing two groups of flanges, and the sealing performance of flange depends on the pre-tightening force of bolt to a great extent, in order to ensure the sealing performance between flanges, the pre-tightening force of bolt will be larger, which may cause the bolt installation of flange to be subjected to excessive pressure, resulting in local deformation, not only affecting the disassembly and installation of flange in later period, but also making the surface of flange uneven, reducing the overall sealing performance of flange.

[0004] For the problems in the related art, no effective solution has been proposed so far. UTILITY MODEL CONTENT

[0005] In view of the problems in the related art, the utility model provides a kind of flange with sealing groove to overcome the above technical problems existing in prior art.

[0006] Therefore, the utility model adopts the specific technical scheme as follows:

[0007] A kind of flange with sealing groove, including two groups of symmetrically arranged flange disc, the side of flange disc is provided with auxiliary disc, and the two groups of auxiliary discs are fixedly connected by a plurality of evenly arranged fastening bolts;Sealing ring is arranged between the two groups of flange discs.

[0008] Further, in order to realize the installation between the flange plate and the auxiliary disc and the sealing ring, under the action of the positioning block and the positioning hole, the accurate alignment between the two groups of flange plates can be realized, the connection failure caused by misplacement is avoided, the outer side of one side of the flange plate is provided with a mounting groove matched with the auxiliary disc, the side wall in the mounting groove is provided with a plurality of positioning blocks, and the inner wall of the mounting groove is provided with a plurality of through holes matched with the fastening bolts; the middle part of the other side of the flange plate is provided with a sealing groove matched with the sealing ring; the inner side of the other side of one group of flange plates is provided with a plurality of positioning columns, and the inner side of the other side of the other group of flange plates is provided with a plurality of positioning holes matched with the positioning columns.

[0009] Further, in order to realize the installation of the sealing ring, the contact area between the flange plate and the sealing ring can be increased through the design of the convex ring, the sealing property between the two groups of flanges can be ensured, and the inner wall of the sealing groove is provided with a plurality of convex rings which are uniformly arranged.

[0010] Further, in order to realize the installation of the auxiliary disc, the local deformation of the flange plate caused by excessive pre-tightening force during the installation of the flange plate through the fastening bolt can be avoided by installing the auxiliary disc on the outer side of the flange plate, so that the sealing property between the flange plates can be ensured, and the maintenance cost of the flange is reduced; the side wall of the auxiliary disc is provided with a through hole matched with the fastening bolt, and the inner wall of the auxiliary disc is provided with a plurality of positioning grooves matched with the positioning blocks.

[0011] Further, in order to realize the closer contact between the sealing ring and the sealing groove, the sealing performance is significantly improved, the cooperation of the groove and the convex ring can form a plurality of sealing barriers, and the leakage of liquid or gas can be effectively prevented; the sealing ring comprises a sealing ring body arranged in the sealing groove; the inner wall and the outer wall of the sealing ring body are provided with grooves matched with the convex ring; and the top end and the bottom end of the sealing ring body are provided with annular grooves; and the top and bottom of the sealing ring body are symmetrically provided with support skeletons.

[0012] The beneficial effects of the utility model are as follows:

[0013] 1. The utility model discloses a sealing structure for flange plate, which is characterized by the following aspects: the sealing structure comprises a flange plate, an auxiliary disc and a sealing ring, the flange plate is provided with a mounting groove matched with the auxiliary disc, the inner wall of the mounting groove is provided with a plurality of positioning blocks, and the other side of the flange plate is provided with a sealing groove matched with the sealing ring; the other side of one group of flange plates is provided with a plurality of positioning columns, and the other side of the other group of flange plates is provided with a plurality of positioning holes matched with the positioning columns.

[0014] 2. The utility model discloses a sealing structure for flange plate, which is characterized by the following aspects: the sealing structure comprises a flange plate, an auxiliary disc and a sealing ring, the flange plate is provided with a mounting groove matched with the auxiliary disc, the inner wall of the mounting groove is provided with a plurality of positioning blocks, and the other side of the flange plate is provided with a sealing groove matched with the sealing ring; the other side of one group of flange plates is provided with a plurality of positioning columns, and the other side of the other group of flange plates is provided with a plurality of positioning holes matched with the positioning columns.

[0015] 3、By setting the auxiliary disc, thereby realize the installation of auxiliary disc, by installing the auxiliary disc on the outside of the flange disc, can avoid the flange disc in through the fastening bolt installation, due to the pre-tightening force is too large and lead to the flange disc partial deformation, thereby can guarantee the sealing between the flange disc, reduce the maintenance cost of flange.

[0016] 4、By setting the sealing ring, thereby realize the contact between the sealing ring and the sealing groove is more closely, significantly improve the sealing performance, the recess and the convex ring cooperation can form multiple sealing barrier, can effectively prevent the leakage of liquid or gas. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is a structural schematic view of a flange with a sealing groove according to an embodiment of the present application;

[0019] Figure 2 is an assembly view of a flange with a sealing groove according to an embodiment of the present application;

[0020] Figure 3 is an assembly view of a flange with a sealing groove from another angle according to an embodiment of the present application;

[0021] Figure 4 is a sectional view of a flange disc in a flange with a sealing groove according to an embodiment of the present application;

[0022] Figure 5 is Figure 4 the local enlarged view of A in the figure;

[0023] Figure 6 is a sectional view of a sealing ring in a flange with a sealing groove according to an embodiment of the present application.

[0024] In the figure:

[0025] 1, flange disc; 101, mounting groove; 102, positioning block; 103, through hole; 104, sealing groove; 1041, convex ring; 105, positioning column; 106, positioning hole; 2, auxiliary disc; 201, through hole; 202, positioning groove; 3, fastening bolt; 4, sealing ring; 401, convex ring; 402, recess; 403, annular groove; 404, support framework. DETAILED DESCRIPTION

[0026] To further illustrate the embodiments, the utility model provides with the drawings, these drawings are the utility model disclosure content part, it mainly used to illustrate the embodiment, and can cooperate with the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0027] According to the embodiments of the utility model, a flange with sealing groove is provided.

[0028] The utility model is further illustrated by combining with the drawings and specific embodiment, as Figures 1-6 The flange with sealing groove according to the embodiments of the utility model, as shown, includes two groups of symmetrically arranged flange plates 1, one side of the flange plate 1 is provided with an auxiliary plate 2, and the two groups of auxiliary plates 2 are fixedly connected through a plurality of uniformly arranged fastening bolts 3; a sealing ring 4 is arranged between the two groups of flange plates 1.

[0029] It should be noted that the number of fastening bolts 3 can be determined according to actual application requirements, the size of the flange plate, working pressure and material strength and other factors, usually, in order to ensure the stability and sealing performance of the flange connection, the fastening bolts will be evenly distributed around the flange plate, and the number is sufficient to withstand the expected working load and stress.

[0030] With the above technical scheme of the utility model, the utility model is improved in many aspects such as optimizing the sealing structure, improving the connection accuracy, enhancing the anti-deformation ability and convenient installation, realizes efficient sealing, accurate installation and wide adaptability, reduces the maintenance cost at the same time, and is especially suitable for industrial equipment, high-pressure pipeline and harsh environment.

[0031] In one embodiment, for the above-mentioned flange plate 1, the outer side of one side of the flange plate 1 is provided with a mounting groove 101 matched with the auxiliary disc 2, the side wall in the mounting groove 101 is provided with a plurality of positioning blocks 102, and the inner wall of the mounting groove 101 is provided with a plurality of through holes 103 matched with the fastening bolts 3; the middle part of the other side of the flange plate 1 is provided with a sealing groove 104 matched with the sealing ring 4; one group of the inner side of the other side of the flange plate 1 is provided with a plurality of positioning columns 105, and the other group of the inner side of the other side of the flange plate 1 is provided with a plurality of positioning holes 106 matched with the positioning columns 105; the inner wall of the sealing groove 104 is provided with a plurality of convex rings 1041 on both sides, and the plurality of convex rings 1041 are uniformly arranged, thereby realizing the installation between the flange plate and the auxiliary disc 2 and the sealing ring 4, and under the action of the positioning blocks 102 and the positioning holes 106, the precise alignment between the two groups of flange plates 1 can be realized, the connection failure caused by misalignment is avoided, the installation of the sealing ring 4 is realized by the sealing groove 104, and the contact area between the flange plate 1 and the sealing ring 4 can be increased by the design of the convex ring 1041, and the sealing property between the two groups of flanges 4 can be guaranteed.

[0032] In one embodiment, for the above-mentioned auxiliary disc 2, the side wall of the auxiliary disc 2 is provided with through holes 201 matched with the fastening bolts 3, and the inner wall of the auxiliary disc 2 is provided with a plurality of positioning grooves 202 matched with the positioning blocks 102, thereby realizing the installation of the auxiliary disc 2, and by installing the auxiliary disc on the outer side of the flange plate 1, the local deformation of the flange plate 1 caused by excessive pre-tightening force during the installation of the flange plate 1 through the fastening bolts 3 can be avoided, thereby guaranteeing the sealing property between the flange plates 1 and reducing the maintenance cost of the flange.

[0033] In one embodiment, for the above-mentioned sealing ring 4, the sealing ring 4 includes a sealing ring body 401 arranged in the sealing groove 104, the inner wall and the outer wall of the sealing ring body 401 are provided with recesses 402 matched with the convex rings 1041, the top end and the bottom end of the sealing ring body 401 are provided with annular grooves 403, and in specific applications, the cross section of the annular groove 403 is a trapezoidal structure; the top and bottom of the sealing ring body 401 are symmetrically provided with support skeletons 404, thereby realizing the closer contact between the sealing ring 4 and the sealing groove 104, thereby significantly improving the sealing performance, and the cooperation of the recesses 402 and the convex rings 1041 can form multiple sealing barriers, which can effectively prevent the leakage of liquid or gas.

[0034] It should be noted that the material of the support skeleton 404 in the sealing ring 4 includes but is not limited to the following:

[0035] Metallic materials: such as stainless steel, copper, etc. Metallic materials have high strength and good rigidity, which can effectively support the structure of the sealing ring and prevent collapse or deformation. At the same time, metallic materials also have good corrosion resistance and temperature resistance, which can adapt to various harsh working environments.

[0036] Hard plastic: Some hard plastics also have good strength and rigidity, and relatively low cost. They can be used to manufacture support skeletons to reduce overall weight and cost. However, compared with metallic materials, the temperature resistance and corrosion resistance of hard plastics may be poor.

[0037] Composite materials: Composite materials made of two or more materials with different properties may also be used to manufacture support skeletons. These materials may combine the advantages of metals and plastics, such as high strength, rigidity, temperature resistance, and corrosion resistance, while reducing weight and cost.

[0038] In order to facilitate the understanding of the above technical solutions of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.

[0039] In actual application, the auxiliary disc 2 is preliminarily positioned by cooperating with the positioning block 102 of the flange disc 1 through the positioning groove 202, then the fastening bolt 2 passes through the through hole 201 of the auxiliary disc 2 and the perforation 106 of the flange disc 1 to tightly fix the two together, the design of the auxiliary disc 2 not only enhances the connection strength between the flange discs 1, but also effectively prevents the local deformation of the flange disc 1 due to excessive pre-tightening force by dispersing the pre-tightening force of the bolt, and the sealing ring 4 is placed in the sealing groove 104, the convex ring 1041 of the groove 402 tightly cooperates to form multiple sealing barriers, at the same time, the annular groove 403 provides elastic space for the sealing ring, so that it can better fit the sealing groove 104 and absorb vibration and deformation.

[0040] In summary, by means of the technical scheme of the utility model, the utility model realizes efficient sealing, accurate installation and wide adaptability by optimizing the sealing structure, improving the connection precision, enhancing the anti-deformation capability and facilitating installation, etc., and meanwhile reduces the maintenance cost, and is especially suitable for industrial equipment, high-pressure pipelines and harsh environments. The flanges 1 are arranged, thereby realizing the installation between the flange plates and the auxiliary plates 2 and the sealing rings 4, and under the action of the positioning blocks 102 and the positioning holes 106, the accurate alignment between the two groups of flange plates 1 can be realized, the connection failure caused by misalignment is avoided, the sealing groove 104 is arranged to realize the installation of the sealing ring 4, the contact area between the flange plate 1 and the sealing ring 4 can be increased through the design of the convex ring 1041, and the sealing property between the two groups of flanges 4 can be ensured. The auxiliary plates 2 are arranged, thereby realizing the installation of the auxiliary plates 2, the auxiliary plates are arranged outside the flange plates 1, the local deformation of the flange plates 1 caused by excessive pre-tightening force during the installation of the flange plates 1 through the fastening bolts 3 can be avoided, and the sealing property between the flange plates 1 can be ensured, and the maintenance cost of the flanges is reduced. The sealing rings 4 are arranged, thereby realizing the closer contact between the sealing rings 4 and the sealing grooves 104, and the sealing performance is significantly improved, and the recess 402 and the convex ring 1041 can form multiple sealing barriers, and the leakage of liquid or gas can be effectively prevented.

[0041] In the utility model, unless another definite provision and limitation, the terms "installation", "arrangement", "connection", "fixation", "screw connection" and other terms should be understood in a broad sense, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication inside two elements or the interaction relationship of two elements, unless another definite limitation, for the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A flange with a sealing groove, characterized in that: It comprises two groups of symmetrically arranged flanges (1), one side of the flanges (1) is provided with an auxiliary disk (2), and the two groups of auxiliary disks (2) are fixedly connected by a plurality of evenly arranged fastening bolts (3); A sealing ring (4) is provided between the two sets of flanges (1).

2. The flange with a sealing groove according to claim 1, characterized in that: A mounting groove (101) is provided on the outer side of one side of the flange (1) and is matched with the auxiliary plate (2); a plurality of positioning blocks (102) are provided on the side wall of the mounting groove (101); and a plurality of through holes (103) are provided on the inner wall of the mounting groove (101) and are matched with the fastening bolts (3); A sealing groove (104) is provided in the middle of the other side of the flange (1) and is matched with the sealing ring (4).

3. The flange with a sealing groove according to claim 2, characterized in that: A plurality of positioning columns (105) are provided on the inner side of the other side of one group of flanges (1), and a plurality of positioning holes (106) matching with the positioning columns (105) are provided on the inner side of the other side of another group of flanges (1).

4. The flange with a sealing groove according to claim 2, characterized in that: A plurality of convex rings (1041) are provided on both sides of the inner wall of the sealing groove (104), and the plurality of convex rings (1041) are evenly arranged.

5. The flange with a sealing groove according to claim 2, characterized in that: The side wall of the auxiliary plate (2) is provided with a through hole (201) that matches the fastening bolt (3), and the inner wall of the auxiliary plate (2) is provided with a plurality of positioning grooves (202) that match the positioning blocks (102).

6. The flange with a sealing groove according to claim 4, characterized in that: The sealing ring (4) includes a sealing ring body (401) disposed inside the sealing groove (104), the inner wall and the outer wall of the sealing ring body (401) are both provided with grooves (402) that match the convex ring (1041), and the top and bottom ends of the sealing ring body (401) are both provided with annular grooves (403); Support frames (404) are symmetrically arranged at the top and bottom of the sealing ring body (401).

Images