Split type connecting flange

Abstract

The utility model relates to the technical field of flanges, in particular to a split type connecting flange which comprises a flange plate, edge grooves are formed in the two sides of the flange plate, bolt holes are formed in the surfaces of the edge grooves, a lantern ring is arranged in one edge groove in a sleeved mode, a sealing backing ring is arranged on the outer side of the lantern ring in a sleeved mode, and reserved holes are formed in the surface of the sealing backing ring. A rubber plug sleeve is integrally formed on the surface of the preformed hole and penetrates through the bolt hole; the split type connecting flange has the advantages that the lantern ring is arranged in the edge groove in a sleeved mode, the rubber ring is fixed to the inner side of the lantern ring, and the sealing effect is improved through elastic deformation of the rubber ring; due to the design of the rubber plug sleeve, when the bolt penetrates through the two flange plates to be locked, the rubber plug sleeve can be clamped between the rod body of the bolt and the bolt hole, the bolt is effectively prevented from shaking in the bolt hole, and the connection stability is enhanced; due to the preassembling design of the sealing backing ring and the lantern ring, sealing and fixing can be completed more quickly in the installation process, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of flanges, in particular to a split connection flange. Background Technique

[0002] In traditional pipeline connections, the split connection flange is one of the commonly used connection methods. It fastens two flange plates together through bolts to achieve pipeline connection. However, there are some deficiencies in traditional split connection flanges:

[0003] Insufficient sealing performance: In high-pressure or high-temperature environments, traditional flange connections are prone to leakage problems, affecting the stability and safety of the system.

[0004] Loose bolts: Due to vibration or long-term operation, the bolts may become loose, resulting in insecure connections and increasing maintenance costs.

[0005] Complex installation: Traditional flange connections require precise alignment of bolt holes during installation and tightening of bolts one by one, which is cumbersome and time-consuming.

[0006] Material waste: Traditional flange connections often require the use of a large amount of sealing materials and bolts, increasing material costs.

[0007] Therefore, an improved split connection flange is needed to improve the connection sealing performance, stability and installation efficiency, while reducing material costs. Content of the Utility Model

[0008] The purpose of the utility model is to provide a split connection flange to solve the problems raised in the above background technique.

[0009] To achieve the above purpose, the utility model provides the following technical solution: A split connection flange includes a flange plate. Both sides of the flange plate are provided with edge grooves. Bolt holes are provided on the surface of the edge grooves. A collar is sleeved inside one of the edge grooves. A sealing gasket ring is sleeved outside the collar. Reserved holes are provided on the surface of the sealing gasket ring. A rubber plug sleeve is integrally formed on the surface of the reserved holes, and the rubber plug sleeve penetrates through the bolt holes.

[0010] Preferably, the edge groove is an annular groove. The inner ring diameter of the edge groove is greater than the inner ring diameter of the flange plate. The bolt holes communicate with the two edge grooves, and there are multiple bolt holes which are circumferentially distributed around the inner ring opening of the flange plate.

[0011] Preferably, the collar is in an annular plate-like structure. The thickness of the collar is equal to the depth of the bolt hole. A rubber ring is fixed at the inner ring opening of the collar, and the rubber ring is clamped between the edge groove and the collar to generate elastic deformation.

[0012] Preferably, a first splicing groove is formed on the outer ring surface of the collar. The first splicing groove is an annular groove. A second splicing groove is formed on the inner ring surface of the gasket ring. The second splicing groove is an annular groove. The first splicing groove and the second splicing groove are matched, and after the first splicing groove and the second splicing groove are sleeved in a staggered manner, they are bonded and fixed.

[0013] Preferably, the reserved holes and the bolt holes correspond one by one, and the aperture of the reserved holes is equal to the aperture of the bolt holes.

[0014] Preferably, the outer diameter of the rubber plug sleeve is equal to the aperture of the reserved hole, and the tube length of the rubber plug sleeve is greater than the sum of the thicknesses of the flange and the gasket ring.

[0015] Preferably, a clamping groove is formed on the surface of the rubber plug sleeve. The clamping groove is an "L"-shaped groove. There are a plurality of clamping grooves, and the plurality of clamping grooves are circumferentially distributed with the pipe orifice of the rubber plug sleeve as the central axis. A plastic plug strip is inserted and fixed inside the clamping groove. The plastic plug strip is an "L"-shaped arc strip, and the inner ring diameter of the clamping groove is equal to the inner ring diameter of the rubber plug sleeve.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] For the split connection flange proposed by the present utility model, a collar is sleeved inside the side groove, and a rubber ring is fixed inside the collar. The elastic deformation of the rubber ring is used to improve the sealing effect; the design of the rubber plug sleeve enables the rubber plug sleeve to be clamped between the rod body of the bolt and the bolt hole when the bolt penetrates through the two flanges and is tightened, effectively preventing the bolt from shaking in the bolt hole and enhancing the stability of the connection; the pre-installation design of the gasket ring and the collar enables the sealing and fixing to be completed more quickly during the installation process, improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is a front view of the structure of the present utility model;

[0020] Figure 3 is Figure 2 a sectional view of the structure at A-A in ;

[0021] Figure 4 is Figure 3 a schematic enlarged view of the structure at A in ;

[0022] Figure 5 is a schematic structural diagram of the connection structure between the collar and the gasket ring of the present utility model;

[0023] Figure 6 is a schematic structural diagram of the rubber plug sleeve of the present utility model.

[0024] In the figure: flange 1, side groove 2, bolt hole 3, collar 4, rubber ring 5, sealing gasket ring 6, splicing groove one 7, splicing groove two 8, reserved hole 9, rubber plug sleeve 10, card slot 11, plastic plug strip 12. Detailed implementation manners

[0025] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clearly understood, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0026] Please refer to Figures 1-6 , the present utility model provides a technical solution: a split connection flange, including a flange 1. Both sides of the flange 1 are provided with side grooves 2. The surface of the side groove 2 is provided with bolt holes 3. The side groove 2 is an annular groove. The inner ring diameter of the side groove 2 is greater than the inner ring diameter of the flange 1. The bolt holes 3 communicate with the two side grooves 2, and there are multiple bolt holes 3, and the multiple bolt holes 3 are circumferentially distributed with the inner ring opening of the flange 1 as the center; when both pipes that need to be connected and fixed by the flange 1 are installed with the flange 1, pass the bolts through the bolt holes 3 on the surfaces of the two flanges 1 and then lock the bolts to complete the connection and fixation of the two flanges 1.

[0027] A collar 4 is sleeved inside one of the side grooves 2. The collar 4 is in an annular plate-like structure. The thickness of the collar 4 is equal to the depth of the bolt hole 3. A rubber ring 5 is fixed at the inner ring opening of the collar 4. The rubber ring 5 is clamped between the side groove 2 and the collar 4 to generate elastic deformation; according to needs, a sealing gasket ring 6 is added to one side where the two flanges 1 are in contact to improve the sealing effect after the two flanges 1 are connected, that is, the collar 4 is sleeved in the bolt hole 3. At this time, the rubber ring 5 is clamped between the collar 4 and the bolt hole 3 to play a role in preventing the collar 4 from coming off and limiting its position. When the two flanges 1 are locked with bolts, the sealing gasket ring 6 is clamped between the two flanges 1 to improve the sealing effect between the two flanges 1.

[0028] A gasket ring 6 is sleeved on the outer side of the collar 4. A first splicing groove 7 is formed on the outer ring surface of the collar 4. The first splicing groove 7 is an annular groove. A second splicing groove 8 is formed on the inner ring surface of the gasket ring 6. The second splicing groove 8 is an annular groove. The first splicing groove 7 and the second splicing groove 8 are matched, and after the first splicing groove 7 and the second splicing groove 8 are sleeved in a staggered manner, they are adhesively fixed. A reserved hole 9 is formed on the surface of the gasket ring 6. A rubber plug sleeve 10 is integrally formed on the surface of the reserved hole 9. The rubber plug sleeve 10 penetrates through the bolt hole 3. The reserved hole 9 and the bolt hole 3 are in one-to-one correspondence. The aperture of the reserved hole 9 is equal to the aperture of the bolt hole 3. The outer diameter of the rubber plug sleeve 10 is equal to the aperture of the reserved hole 9. The pipe length of the rubber plug sleeve 10 is greater than the sum of the thicknesses of the flange 1 and the gasket ring 6. The reason for arranging the rubber plug sleeve 10 on the surface of the gasket ring 6 is that after the gasket ring 6 is installed between the two flanges 1, the rubber plug sleeve 10 extending from the surface of the gasket ring 6 is inserted into the bolt hole 3. When the bolt penetrates through the two flanges 1 and is tightened, the rubber plug sleeve 10 is clamped between the rod body of the bolt and the bolt hole 3, so as to prevent the bolt from shaking in the bolt hole 3.

[0029] A clamping groove 11 is formed on the surface of the rubber plug sleeve 10. The clamping groove 11 is an "L"-shaped groove. A plurality of clamping grooves 11 are provided. The plurality of clamping grooves 11 are circumferentially distributed with the pipe orifice of the rubber plug sleeve 10 as the central axis. A plastic plug strip 12 is inserted and fixed inside the clamping groove 11. The plastic plug strip 12 is an "L"-shaped arc strip. The inner ring diameter of the clamping groove 11 is equal to the inner ring diameter of the rubber plug sleeve 10. The reason for embedding the plastic plug strip 12 on the inner ring surface of the rubber plug sleeve 10 is to improve the anti-bending performance of the rubber plug sleeve 10 and facilitate the rubber plug sleeve 10 to pass through the bolt hole 3.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split connecting flange, comprising a flange plate (1), side grooves (2) are provided on both sides of the flange plate (1), and bolt holes (3) are provided on the surface of the side grooves (2), characterized in that: A collar (4) is sleeved inside the side groove (2), a sealing ring (6) is sleeved outside the collar (4), a reserved hole (9) is opened on the surface of the sealing ring (6), a rubber plug sleeve (10) is integrally formed on the surface of the reserved hole (9), and the rubber plug sleeve (10) passes through the bolt hole (3).

2. A split connecting flange according to claim 1, characterized in that: The side groove (2) is an annular groove, the inner ring diameter of the side groove (2) is larger than the inner ring diameter of the flange (1), the bolt hole (3) connects the two side grooves (2), and a plurality of bolt holes (3) are provided, and the plurality of bolt holes (3) are distributed in a circle with the inner ring opening of the flange (1) as the center.

3. The split connecting flange according to claim 1, characterized in that: The collar (4) is an annular plate structure, the thickness of the collar (4) is equal to the depth of the bolt hole (3), a rubber ring (5) is fixed to the inner ring opening of the collar (4), and the rubber ring (5) is clamped between the side groove (2) and the collar (4) to generate elastic deformation.

4. The split connecting flange according to claim 1, characterized in that: The outer ring surface of the sleeve ring (4) is provided with a splicing groove 1 (7), which is an annular groove; the inner ring surface of the sealing gasket ring (6) is provided with a splicing groove 2 (8), which is an annular groove; the splicing groove 1 (7) and the splicing groove 2 (8) match each other, and the splicing groove 1 (7) and the splicing groove 2 (8) are staggered and then glued and fixed.

5. The split connecting flange according to claim 1, characterized in that: The reserved holes (9) correspond to the bolt holes (3) one by one, and the diameter of the reserved holes (9) is equal to the diameter of the bolt holes (3).

6. The split connecting flange according to claim 1, characterized in that: The outer ring diameter of the rubber plug sleeve (10) is equal to the aperture of the reserved hole (9), and the tube length of the rubber plug sleeve (10) is greater than the sum of the thicknesses of the flange (1) and the sealing gasket (6).

7. The split connecting flange according to claim 1, characterized in that: A slot (11) is provided on the surface of the rubber plug sleeve (10), the slot (11) is an "L"-shaped slot, a plurality of slots (11) are provided, and the plurality of slots (11) are distributed in a circle with the pipe mouth of the rubber plug sleeve (10) as the central axis, a plastic plug strip (12) is inserted and fixed inside the slot (11), the plastic plug strip (12) is an "L"-shaped arc strip, and the inner ring diameter of the slot (11) is equal to the inner ring diameter of the rubber plug sleeve (10).

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