Detachable lap joint flange

Abstract

The utility model discloses a detachable lap joint flange, relates to the technical field of flange connection arrangement, and aims to solve the problems that the connection between a pipeline and a flange is always fixed, and when a flange gasket is aged to reach the service life and needs to be replaced, the flange gasket cannot be replaced. The flange comprises a first pipe body and flange bodies, a second pipe body is arranged at the bottom of the first pipe body, and the flange bodies which are symmetrically distributed are arranged on the two sides of the peripheral faces of the ends, close to each other, of the first pipe body and the second pipe body in an attached mode. T-shaped limiting grooves are formed in the surfaces of the two ends of the flange body, and every two adjacent limiting grooves communicate with each other; according to the utility model, the flange body can be mounted and dismounted, so that the flange body can be conveniently replaced, and a flange ring does not need to be cut by a gas cutting machine and other fire operation methods, so that the use convenience of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange connection settings, in particular to a detachable slip-on flange. Background Art

[0002] Flange is also called 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 equipment, such as reducer flange. Flange connection or flange joint refers to a detachable connection in which flange, gasket and bolts are connected to each other as a combined sealing structure.

[0003] The connection between the pipeline and the flange in the prior art is often a fixed setting. When the flange gasket ages and reaches its service life and needs to be replaced, it is necessary to use hot work methods such as gas cutting machinery to cut the flange ring. This process is time-consuming and labor-intensive. Hot work cannot be performed in some specific chemical sites. At the same time, the flammable and explosive materials remaining in the pipeline also increase the operational risks.

[0004] Therefore, a detachable slip-on flange is needed to solve the problem in the prior art that the connection between the pipe and the flange is often a fixed setting. When the flange gasket ages and reaches its service life and needs to be replaced, it is necessary to use a flame-cutting machine or other hot work method to cut the flange ring, which is a time-consuming and laborious process. Utility Model Content

[0005] In order to solve the above technical problems, a detachable slip-on flange is provided, which solves the problem that in the prior art, the connection between the pipeline and the flange is often fixed. When the flange gasket ages and reaches its service life and needs to be replaced, it is necessary to use a flame-operated method such as an oxyacetylene cutting machine to cut the flange ring, which is a time-consuming and laborious process.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a detachable slip-on flange, comprising a first tube body and a flange body, a second tube body is arranged at the bottom of the first tube body, and the first tube body and the second tube body are close to each other on both sides of the outer circumference of one end with symmetrically distributed flange bodies, the surfaces of the two ends of the flange body are provided with T-shaped limiting grooves, the limiting grooves at two adjacent positions are connected, and the insides of the limiting grooves at two adjacent positions are inserted with I-shaped sockets, a fixing block is fixed at the position of the adjacent socket on the surface of the flange body, a bolt is threadedly connected through the middle position of the fixing block, and the surfaces of the two sides of the socket are provided with symmetrically distributed screw holes, and the side where the bolts at two adjacent positions are close to each other extends to the inside of the screw holes at the adjacent positions.

[0007] Preferably, an annular groove is provided on the inner circumference of the flange body, and the annular grooves at two adjacent positions are connected to each other. Fixed rings are fixed inside the annular grooves at two adjacent positions, and the inner circumference of one of the fixed rings is fixed to the outer circumference of the first tube body, and the inner circumference of the other fixed ring is fixed to the outer circumference of the second tube body.

[0008] Preferably, a slot is provided on the surface of one group of the flange bodies at one end of the limiting groove, a sealing strip is inserted into the slot, and one side of the sealing strip is fixed to the surface of another group of flange bodies at an adjacent position.

[0009] Preferably, a plurality of screws equidistantly distributed are inserted through the middle of two adjacent flange bodies, nuts are threadedly connected at the upper and lower ends of the outer circumference of the screw, and sliding sleeves are provided at the upper and lower ends of the screw.

[0010] Preferably, the outer circumferential surfaces of the first tube body and the flange body are provided with a plurality of storage grooves which are equidistantly distributed around the outer circumference, and an embedded shaft is fixed inside the storage groove.

[0011] Preferably, one end of the sliding sleeve extends to the interior of the storage groove at the adjacent position and is slidably connected to the embedded shaft at the adjacent position, and an interference groove is formed through the surface of the sliding sleeve.

[0012] Compared with the prior art, the advantages of the utility model are:

[0013] 1. By fitting the two flange bodies to the outer circumferential surface of the connection between the first tube body and the flange body, inserting the socket into the interior of the limited groove, and extending the bolts to the interior of the adjacent screw holes to fix the socket, the installed flange bodies can be prevented from being separated from each other, thereby realizing the installation and disassembly of the flange body to facilitate the replacement of the flange body, thereby eliminating the need to use hot work methods such as gas cutting machinery to cut the flange ring, thereby improving the convenience of use of the device;

[0014] 2. When two sets of flange bodies are connected to each other through screws and nuts, the sleeve is slid so that the inner wall of the abutment groove can fit the outer circumference of the screw, thereby avoiding the shaking of the screw during installation, which is conducive to the connection operation of the two sets of flange bodies, thereby further improving the convenience of use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in the front view direction;

[0016] Figure 2 For the utility model Figure 1 A schematic diagram of the structure enlargement at the center A;

[0017] Figure 3 For the utility model Figure 1 A schematic diagram of the structure enlarged at B in the middle;

[0018] Figure 4 It is a three-dimensional exploded schematic diagram of a local structure of the utility model;

[0019] Figure 5 It is an enlarged schematic diagram of the structure at C in 4 of the present invention.

[0020] The numbers in the figure are:

[0021] 1. First tube body; 2. Flange body; 3. Second tube body; 4. Limiting groove; 5. Socket; 6. Fixing block; 7. Bolt; 8. Screw hole; 9. Slot; 10. Sealing strip; 11. Fixing ring; 12. Ring groove; 13. Screw; 14. Nut; 15. Storage groove; 16. Embedded shaft; 17. Sliding sleeve; 18. Resistance groove. DETAILED DESCRIPTION

[0022] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0023] Example 1

[0024] Reference Figure 1-5 As shown, a detachable slip-on flange comprises a first tube body 1 and a flange body 2. A second tube body 3 is arranged at the bottom of the first tube body 1. The first tube body 1 and the second tube body 3 are close to each other on both sides of the outer circumference of one end and are symmetrically arranged with the flange body 2. The surfaces of the two ends of the flange body 2 are provided with T-shaped limiting grooves 4. The two adjacent limiting grooves 4 are connected. The insides of the two adjacent limiting grooves 4 are inserted with I-shaped sockets 5. A fixing block 6 is fixed at a position of the adjacent socket 5 on the surface of the flange body 2. A bolt 7 is threadedly connected through the middle position of the fixing block 6. The socket The surfaces of both sides of the first pipe body 1 and the second pipe body 2 are provided with symmetrically distributed screw holes 8, and the sides of the two adjacent bolts 7 that are close to each other extend to the inside of the adjacent screw holes 8. By fitting the two flange bodies 2 to the outer peripheral surface of the connection between the first pipe body 1 and the flange body 2, inserting the socket 5 into the inside of the limiting groove 4, and extending the bolts 7 to the inside of the adjacent screw holes 8 to fix the socket 5, the installed flange bodies 2 can be prevented from being separated from each other, thereby realizing the installation and disassembly of the flange body 2, so as to facilitate the replacement of the flange body 2, and there is no need to use a hot work method such as a gas cutting machine to cut the flange ring.

[0025] Please refer to Figure 1 , Figure 4 and Figure 5 As shown, an annular groove 12 is provided on the inner circumference of the flange body 2, and the annular grooves 12 at two adjacent positions are connected. Fixed rings 11 are fixed inside the annular grooves 12 at two adjacent positions, wherein the inner circumference of one of the fixed rings 11 is fixed to the outer circumference of the first tube body 1, and the inner circumference of the other fixed ring 11 is fixed to the outer circumference of the second tube body 3. The installation position of the annular groove 12 can be limited by the fixed ring 11, so that the connection between the flange body 2 and the first tube body 1 and the connection between the flange body 2 and the second tube body 3 can be at a specific position.

[0026] Please refer to Figure 1 , Figure 2 and Figure 3 As shown, a slot 9 is provided on the surface of one group of flange bodies 2 at one end of the limiting groove 4, and a sealing strip 10 is inserted into the slot 9. One side of the sealing strip 10 is fixed to the surface of another group of flange bodies 2 at an adjacent position. When the two adjacent flange bodies 2 are fitted together, the sealing strip 10 can be embedded in the slot 9 at the adjacent position, thereby improving the sealing effect after the two flange bodies 2 are connected.

[0027] Example 2

[0028] Further in the embodiments, please refer to Figure 1 and Figure 4 As shown, a plurality of screws 13 equidistantly distributed are inserted through the middle positions of the two adjacent flange bodies 2, nuts 14 are threadedly connected to the upper and lower ends of the outer circumference of the screw 13, and sleeves 17 are arranged at the upper and lower ends of the screw 13. A plurality of storage grooves 15 equidistantly distributed are provided on the outer circumference of the first tube body 1 and the flange body 2, and an embedded shaft 16 is fixed inside the storage groove 15. One end of the sleeve 17 extends to the inside of the adjacent storage groove 15 and is slidably connected to the adjacent embedded shaft 16. A resistance groove 18 is provided on the surface of the sleeve 17. When the two groups of flange bodies 2 are connected to each other by the screw 13 and the nut 14, the sleeve 17 can only move in the vertical direction due to the limiting effect of the storage groove 15 and the embedded shaft 16 on the movement trajectory of the sleeve 17, so that the sleeve 17 can move vertically downward and the inner wall of the resistance groove 18 can resist the screw 13 to prevent it from shaking during installation.

[0029] Working principle: In actual use, when the user needs to connect the flange body 2 with the first tube body 1 and the flange body 2 with the second tube body 3, the two flange bodies 2 are attached to both sides of the outer circumference of the first tube body 1 or the second tube body 3, and the fixing ring 11 is allowed to extend to the inside of the two adjacent ring grooves 12, so as to position the installation of the flange body 2, and then the socket 5 is inserted into the cavity formed by the two adjacent limiting grooves 4, and then the bolt 7 is rotated so that the bolt 7 can extend in the horizontal direction through the cooperation of the threaded structure between the adjacent fixing block 6, so that it can extend to The interior of the adjacent screw hole 8 can fix the socket 5, so that the two can be prevented from separating under the interference between the inner cavity of the limiting groove 4 and the surface of the socket 5, thereby realizing the installation operation of the flange body 2. This makes it convenient for the user to replace the flange body 2. When the two sets of flange bodies 2 are connected to each other by the screw 13 and the nut 14, the sliding sleeve 17 can be limited by the storage groove 15 and the embedded shaft 16 on the movement trajectory of the sliding sleeve 17 so that it can only move in the vertical direction, so that the sliding sleeve 17 can move vertically downward and the inner wall of the interference groove 18 can resist the screw 13 to prevent it from shaking during installation.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A detachable slip-on flange, comprising a first pipe body (1) and a flange body (2), characterized in that: A second tube body (3) is arranged at the bottom of the first tube body (1); symmetrically distributed flange bodies (2) are arranged on both sides of the outer circumferences of one end of the first tube body (1) and the second tube body (3) close to each other; T-shaped limiting grooves (4) are provided on the surfaces of both ends of the flange body (2); the limiting grooves (4) at two adjacent positions are connected; I-shaped sockets (5) are inserted into the interiors of the limiting grooves (4) at two adjacent positions; a fixing block (6) is fixed at a position of the surface of the flange body (2) close to the adjacent sockets (5); a bolt (7) is threadedly connected through the middle of the fixing block (6); symmetrically distributed screw holes (8) are provided on the surfaces of both sides of the socket (5); the side of the two adjacent bolts (7) close to each other extends to the interiors of the adjacent screw holes (8).

2. A detachable slip-on flange according to claim 1, characterized in that: The inner circumference of the flange body (2) is provided with an annular groove (12), and the annular grooves (12) at two adjacent positions are connected to each other. Fixing rings (11) are fixed inside the annular grooves (12) at two adjacent positions, wherein the inner circumference of one of the fixing rings (11) is fixed to the outer circumference of the first pipe body (1), and the inner circumference of the other fixing ring (11) is fixed to the outer circumference of the second pipe body (3).

3. A detachable slip-on flange according to claim 2, characterized in that: One group of the flange bodies (2) is provided with a slot (9) at a position at one end of the limiting groove (4), a sealing strip (10) is inserted into the interior of the slot (9), and one side of the sealing strip (10) is fixed to the surface of another group of flange bodies (2) at an adjacent position.

4. The detachable slip-on flange according to claim 1, characterized in that: A plurality of screw rods (13) are inserted through the middle of two adjacent flange bodies (2) and are equidistantly distributed around the body. Nuts (14) are threadedly connected at the upper and lower ends of the outer circumference of the screw rods (13). Sliding sleeves (17) are provided at the upper and lower ends of the screw rods (13).

5. A detachable slip-on flange according to claim 4, characterized in that: The outer circumferential surfaces of the first tube body (1) and the flange body (2) are provided with a plurality of storage grooves (15) which are equidistantly distributed around the body, and an embedded shaft (16) is fixed inside the storage groove (15).

6. A detachable slip-on flange according to claim 5, characterized in that: One end of the sliding sleeve (17) extends to the interior of the adjacent storage groove (15) and is slidably connected to the adjacent embedded shaft (16). A resistance groove (18) is formed through the surface of the sliding sleeve (17).

Images