Annular connecting flange

Abstract

The utility model relates to the technical field of flanges, in particular to an annular connecting flange, which comprises a flange connecting seat, a conveying pipe and an annular flange main body, a separable detachable flange structure is arranged on the outer side of the annular flange main body, and the separable detachable flange structure comprises a partition plate, a fixing screw and an anti-collision layer. The multiple partition plates are fixedly connected to the outer wall of the annular flange body, multiple limiting plates are fixedly connected to the inner sides of the multiple partition plates, and flange separation blocks are slidably connected to the inner sides of the multiple limiting plates in a clamped mode. According to the annular connecting flange, when one of the annular flanges is collided and damaged or cracks, the corresponding fixing screws are rotated, the fixing screws are taken out of the flange separation blocks, an operator can pull out the damaged flange separation block in an outward sliding mode, and the annular flange structure which can be independently replaced is utilized; and the waste of flange materials is reduced, so that the use cost of the annular connecting flange is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to an annular connecting flange. Background Art

[0002] Flange, also known as flange flange or flange. Flange is a part that connects shafts to each other and is used to connect pipe ends. It is also used as a flange on the inlet and outlet of equipment to connect two devices, such as reducer flange. Flange connection or flange joint refers to a detachable connection that is connected by flange, gasket and bolts as a combined sealing structure. Pipe flange refers to the flange used for piping in pipeline devices. It is used on equipment to refer to the inlet and outlet flanges of the equipment.

[0003] For example, the authorization announcement number "CN208670343U" is named as a connecting flange. Although it is simple and reasonable, easy to use, convenient to install and disassemble, the flange connection structure is stable and strong, not easy to fall off, has good air tightness and long service life, the existing connecting flange uses an integrally manufactured flange plate, and the two relative flange plates are fixed by bolt locking parts after connection. However, the overall structure of the flange is difficult to disassemble and separate. When one corner of the flange is bumped and worn, the entire connecting flange needs to be repaired and replaced, and the subsequent installation of the new connecting flange that has been repaired and replaced as a whole may not fit well with the old flange, which will greatly increase the use cost of the existing connecting flange. Utility Model Content

[0004] The utility model aims to solve the problem of increased use cost of connecting flanges and proposes an annular connecting flange.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an annular connecting flange, comprising a flange connecting seat, a conveying pipe and an annular flange body, a separate and detachable flange structure is provided on the outer side of the annular flange body, the separate and detachable flange structure comprises a partition plate, a fixing screw and an anti-collision layer, a plurality of the partition plates are fixedly connected to the outer wall of the annular flange body, a plurality of the partition plates are fixedly connected to the inner side of a plurality of limit plates, a plurality of the limit plates are slidingly clamped with flange separation blocks on the inner side, a plurality of the fixing screws are threadedly connected to the inner side of the annular flange body, a plurality of the fixing screws are threadedly connected to the end portions of the fixing screws with thread grooves, a plurality of the thread grooves are fixedly opened on the inner side of the flange separation block, and a plurality of the flange separation blocks are fixedly connected to the outer side with an anti-collision layer.

[0006] Preferably, a through hole is fixedly opened on the inner side of the plurality of flange separation blocks, the plurality of flange separation blocks are equidistantly arranged along the outer side of the annular flange body, and a flange connecting seat is fixedly installed on the outer wall of the annular flange body.

[0007] Preferably, a flange locking and fixing structure is provided on the inner side of the through hole;

[0008] The flange locking and fixing structure comprises a through rod, a threaded column and a locking nut;

[0009] Multiple through rods are movably connected to the inner side of the through holes, multiple two ends of the through rods are fixedly connected with threaded columns, multiple outer sides of the threaded columns are movably sleeved with gaskets, multiple outer sides of the threaded columns are threadedly connected with locking nuts, and multiple inner sides of the locking nuts are movably connected with the gaskets.

[0010] Preferably, two water through holes are fixedly installed on the inner side of the annular flange body, and the two water through holes are arranged relatively parallel to each other.

[0011] Preferably, a reinforcement ring is fixedly installed on the inner wall of the annular flange body, and the outer wall of the reinforcement ring is movably connected to the inner side of a plurality of fixing screws, and the outer walls of the two annular flange bodies are movably connected.

[0012] Preferably, two delivery pipes are fixedly connected to the outer sides of the two flange connection seats, the ends of the two delivery pipes are arranged opposite to the water through holes, and the plurality of through rods are arranged parallel to each other and equidistantly.

[0013] The utility model provides an annular connecting flange, which has the beneficial effect that when one of the annular flanges is damaged or cracked, an operator can rotate the corresponding fixing screws on the inner side of the annular flange body, and the fixing screws are taken out from the inside of the flange separation block, so that the operator can slide and pull out the damaged flange separation block outward, and utilize the annular flange structure that can be replaced separately, thereby reducing the waste of flange materials and thereby reducing the use cost of the annular connecting flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a partial three-dimensional schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 A front cross-sectional schematic diagram of

[0016] Figure 3 for Figure 1 A side cross-sectional schematic diagram of

[0017] Figure 4 for Figure 2 Enlarged cross-sectional view of part A in the middle;

[0018] Figure 5 for Figure 3 Enlarged cross-sectional view of part B in the middle;

[0019] Figure 6 for Figure 1Enlarged schematic diagram of part C in the middle.

[0020] In the figure: 1. flange connecting seat, 2. conveying pipe, 3. annular flange body, 4. water through hole, 5. separate and detachable flange structure, 51. partition plate, 52. flange separation block, 53. limit plate, 54. fixing screw, 55. threaded groove, 56. anti-collision layer, 6. through hole, 7. flange locking and fixing structure, 71. through rod, 72. gasket, 73. threaded column, 74. locking nut, 8. reinforcement ring. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] See also Figure 1-6 , an annular connecting flange, comprising a flange connecting seat 1, a conveying pipe 2 and an annular flange body 3, a separate and detachable flange structure 5 is provided on the outer side of the annular flange body 3, the separate and detachable flange structure 5 comprises a partition plate 51, a fixing screw 54 and an anti-collision layer 56, a plurality of partition plates 51 are fixedly connected to the outer wall of the annular flange body 3, a plurality of limiting plates 53 are fixedly connected to the inner side of the plurality of partition plates 51, a flange separation block 52 is slidably clamped on the inner side of the plurality of limiting plates 53, and a plurality of flange separation blocks 52 are inserted along the limiting plates 53 on the inner side of the partition plates 51, so that a circle of a plurality of flange separation blocks 52 can form a complete annular flange, when one of the annular flanges is damaged or cracked, the operator can rotate the corresponding fixing screw 54 on the inner side of the annular flange body 3, and the fixing screw 54 is taken out from the flange separation block 52, so that the operator can slide the damaged flange separation block 52 outward and pull it out, and then the damaged flange separation block 52 can be replaced;

[0023] After replacement, the new flange separation block 52 is reinserted into the inner side of the partition plate 51, and the fixing screws 54 are screwed to complete the fixing installation. The multiple fixing screws 54 are threadedly connected to the inner side of the annular flange body 3, and the ends of the multiple fixing screws 54 are threadedly connected with thread grooves 55. The multiple thread grooves 55 are fixedly opened on the inner side of the flange separation block 52, and the outer side of the multiple flange separation blocks 52 is fixedly connected with an anti-collision layer 56. The anti-collision layer 56 is made of a strong, wear-resistant and impact-resistant carbon steel material and surrounds the outer side of the multiple flange separation blocks 52 to improve its service life.

[0024] By inserting multiple flange separation blocks 52 along the limit plate 53 on the inner side of the partition plate 51, a circle of multiple flange separation blocks 52 can form a complete annular flange. When one of the annular flanges is damaged or cracked, the operator can rotate the corresponding fixing screw 54 on the inner side of the annular flange body 3. The fixing screw 54 is taken out from the flange separation block 52, and the operator can slide the damaged flange separation block 52 outward and pull it out. At this time, the damaged flange separation block 52 can be replaced. After replacement, the new flange separation block 52 is reinserted into the inner side of the partition plate 51, and the fixed installation is completed by turning the fixing screw 54. The annular flange structure that can be replaced separately is used to reduce the waste of flange materials, thereby reducing the use cost of the annular connecting flange.

[0025] See also Figure 1-6 A plurality of flange separation blocks 52 are fixedly provided with through holes 6 on the inner side, and the plurality of flange separation blocks 52 are equidistantly arranged along the outer side of the annular flange body 3. A flange connection seat 1 is fixedly installed on the outer wall of the annular flange body 3. A flange locking and fixing structure 7 is provided on the inner side of the through hole 6. The flange locking and fixing structure 7 includes a through rod 71, a threaded column 73 and a locking nut 74. The plurality of through rods 71 ​​are movably connected to the inner side of the through hole 6. The two ends of the plurality of through rods 71 ​​are fixedly connected with threaded columns 73. The outer sides of the plurality of threaded columns 73 are movably sleeved with The gasket 72 is made of rubber material. The rubber gasket 72 can increase the friction between the locking nut 74 and the separation flange block 52. When two different annular flange bodies 3 are docked together, the through rod 71 is passed through the inner sides of multiple through holes 6, and then tightened by rotating the locking nuts 74 at both ends. The locking nuts 74 are used to fix the different annular flange bodies 3 in the future. The outer sides of the multiple threaded columns 73 are threadedly connected with the locking nuts 74, and the inner sides of the multiple locking nuts 74 are movably connected to the gasket 72.

[0026] See also Figure 1-6 Two water holes 4 are fixedly installed on the inner side of the annular flange body 3. The water holes 4 are used to connect two opposite delivery pipes 2. Water can flow inside the water holes 4. The two water holes 4 are relatively parallel to each other. A reinforcement ring 8 is fixedly installed on the inner wall of the annular flange body 3. The reinforcement ring 8 is made of a high-carbon steel metal ring that is strong and not easy to bend and damage. The reinforcement ring 8 supports the inner wall of the annular flange body 3 on the inside to improve the strength and durability of the annular flange. The outer wall of the reinforcement ring 8 is movably connected to the inner side of multiple fixing screws 54. The outer walls of the two annular flange bodies 3 are movably connected. The outer sides of the two flange connecting seats 1 are fixedly connected with two delivery pipes 2. The ends of the two delivery pipes 2 are arranged opposite to the water holes 4, and the multiple through rods 71 ​​are arranged parallel and equidistant from each other.

[0027] Working principle:

[0028] When using annular flanges to connect and butt-joint pipes:

[0029] The separation of the annular connecting flange can be disassembled and replaced separately:

[0030] By inserting multiple flange separation blocks 52 along the limiting plate 53 on the inner side of the partition plate 51, a circle of multiple flange separation blocks 52 can form a complete annular flange. When one of the annular flanges is damaged or cracked, the operator can rotate the corresponding fixing screw 54 on the inner side of the annular flange body 3. The fixing screw 54 is taken out from the inside of the flange separation block 52, and the operator can slide the damaged flange separation block 52 outward to remove it. At this time, the damaged flange separation block 52 can be replaced. After replacement, the new flange separation block 52 is reinserted into the inner side of the partition plate 51, and the fixing installation is completed by screwing the fixing screw 54.

[0031] Ring connection flange butt locking structure:

[0032] The gasket 72 is made of rubber material, and the rubber gasket 72 can increase the friction between the locking nut 74 and the separation flange block 52. When two different annular flange bodies 3 are butt-jointed together, the through rod 71 is passed through the inner sides of the multiple through holes 6, and then the locking nuts 74 are rotated and tightened at both ends, and the locking nuts 74 are used to fix the different annular flange bodies 3 relatively in the future;

[0033] Annular connection flange water supply and reinforcement structure:

[0034] The water hole 4 is used to connect two opposite conveying pipes 2. Water can flow through the inside of the water hole 4. The two water holes 4 are arranged relatively parallel to each other. A reinforcement ring 8 is fixedly installed on the inner wall of the annular flange body 3. The reinforcement ring 8 is made of a strong high-carbon steel metal ring that is not easy to bend and damage. The reinforcement ring 8 supports the inner wall of the annular flange body 3 on the inside to improve the strength and durability of the annular flange.

[0035] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An annular connecting flange, comprising a flange connecting seat (1), a conveying pipe (2) and an annular flange body (3), characterized in that: A detachable and removable flange structure (5) is provided on the outer side of the annular flange body (3). The detachable and removable flange structure (5) comprises a partition plate (51), a fixing screw (54) and an anti-collision layer (56). A plurality of the partition plates (51) are fixedly connected to the outer wall of the annular flange body (3). A plurality of limit plates (53) are fixedly connected to the inner side of the plurality of partition plates (51). A flange separation block (52) is slidably engaged on the inner side of the plurality of limit plates (53). A plurality of the fixing screws (54) are threadedly connected to the inner side of the annular flange body (3). The ends of the plurality of fixing screws (54) are threadedly connected to thread grooves (55). The plurality of thread grooves (55) are fixedly opened on the inner side of the flange separation block (52). The outer side of the plurality of flange separation blocks (52) is fixedly connected to the anti-collision layer (56).

2. The annular connecting flange according to claim 1, characterized in that: Through holes (6) are fixedly opened on the inner sides of the plurality of flange separation blocks (52), and the plurality of flange separation blocks (52) are equidistantly arranged along the outer side of the annular flange body (3), and a flange connection seat (1) is fixedly mounted on the outer wall of the annular flange body (3).

3. The annular connecting flange according to claim 2, characterized in that: A flange locking and fixing structure (7) is provided on the inner side of the through hole (6); The flange locking and fixing structure (7) comprises a through rod (71), a threaded column (73) and a locking nut (74); The plurality of through rods (71) are movably connected to the inner side of the through hole (6); both ends of the plurality of through rods (71) are fixedly connected to threaded columns (73); the outer sides of the plurality of threaded columns (73) are movably sleeved with gaskets (72); the outer sides of the plurality of threaded columns (73) are threadedly connected to locking nuts (74); and the inner sides of the plurality of locking nuts (74) are movably connected to the gaskets (72).

4. The annular connecting flange according to claim 1, characterized in that: Two water through holes (4) are fixedly mounted on the inner side of the annular flange body (3), and the two water through holes (4) are arranged relatively parallel to each other.

5. The annular connecting flange according to claim 1, characterized in that: A reinforcement ring (8) is fixedly mounted on the inner wall of the annular flange body (3); the outer wall of the reinforcement ring (8) is movably connected to the inner side of a plurality of fixing screws (54); and the outer walls of the two annular flange bodies (3) are movably connected.

6. The annular connecting flange according to claim 3, characterized in that: Two delivery pipes (2) are fixedly connected to the outsides of the two flange connection seats (1), the ends of the two delivery pipes (2) are arranged opposite to the water through hole (4), and the plurality of penetration rods (71) are arranged parallel to each other and equidistantly.

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