A stable sheath flange

Abstract

This invention relates to the field of sheathed flange technology, specifically a stable sheathed flange, comprising a first pipe body, a first flange fixedly installed on one side of the first pipe body, multiple mounting bolts on the first flange, rubber gaskets mounted on the first flange via the multiple mounting bolts, a second flange on one side of the rubber gasket, a second pipe body fixedly installed on one side of the second flange, a sheath shell on the outer side of the first flange and the second flange, a rubber ring on the sheath shell, and the rubber ring fitting snugly against the first pipe body; the invention uses a locking block and a serrated ring to lock the rotating block, thereby limiting and fixing the mounting bolts with a limiting cover, and a spring using its own elasticity to support the sheath shell via a movable rod, thus increasing the stability of the mounting bolts and preventing them from loosening due to vibration.

Description

Technical Field

[0001] This invention relates to the field of sheathed flange technology, specifically a sheathed flange with stable connection. Background Technology

[0002] A sheathed flange is a flange fitting used to connect pipes, equipment or other pressure vessels. It is commonly used in applications requiring reliable sealing and resistance to high pressure and temperature. Sheathed flanges typically consist of two layers: the inner layer connects to other equipment, and the outer layer provides sealing protection at the connection.

[0003] Sheathed flanges are connected to flanges of pipes, equipment or other pressure vessels by bolts. Bolts will wear out after long-term installation, and the bolt installation points may loosen due to collisions or vibrations from external objects, resulting in low connection stability of sheathed flanges.

[0004] Therefore, the present invention provides a sheathed flange with stable connection. Summary of the Invention

[0005] To address the issue of low connection stability in existing technologies, a sleeve-type flange with stable connection has been designed.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a stable sheathed flange, including a first pipe body, a first flange fixedly installed on one side of the first pipe body, a plurality of mounting bolts provided on the first flange, a rubber gasket provided on the first flange through the plurality of mounting bolts, a second flange provided on one side of the rubber gasket, a second pipe body fixedly installed on one side of the second flange, a sheath provided on the outside of the first flange and the second flange, a rubber ring provided on the sheath, and the rubber ring fitting against the first pipe body, and also including an installation mechanism, a support mechanism and a plurality of stabilizing mechanisms;

[0007] The first pipe body is provided with an installation mechanism, the installation mechanism is provided with a support mechanism, and the support mechanism is connected to the sheath shell. The sheath shell is provided with multiple stabilizing mechanisms, which are used to reinforce the installation bolts.

[0008] The inner side of the sheath is provided with a mounting plate, which is located outside the plurality of mounting bolts and fits against the second flange. Each mounting bolt is threaded with a mounting nut, and the plurality of mounting nuts abut against the mounting plate.

[0009] The installation mechanism includes two limiting rings fixedly installed on the first pipe body, two half rings are provided between the two limiting rings, and the two half rings are located on the outer side of the first pipe body. Two threaded bolts are installed on the two half rings with a common thread.

[0010] The support mechanism includes two fixed blocks fixedly installed on the semi-ring. A circular sleeve is fixedly installed on each fixed block. A spring is connected to one inner wall of each circular sleeve. A movable rod is fixedly installed at the end of each spring, and the movable rod is located inside the circular sleeve. The ends of multiple movable rods are fixed together with the protective shell.

[0011] The support mechanism also includes a side block fixedly installed on the semi-ring, and two threaded sleeves fixedly installed on the sheath shell. Each threaded sleeve has a compression bolt installed on its inner thread, and each compression bolt is located inside the side block at the corresponding position.

[0012] The stabilizing mechanism includes a rotating block fixedly mounted on the sheath via bearings. A limit cover is fixedly mounted on the rotating block, and the limit cover is located outside the mounting bolt at the corresponding position. A serrated ring is fixedly mounted on the rotating block. An outer sleeve is fixedly mounted on the sheath, and the outer sleeve is located outside the rotating block. Two inner rods are fixedly mounted on the inner wall of the outer sleeve. A locking block is movably mounted on each inner rod, and the two locking blocks engage with the serrated ring together. Four torsion springs are connected to the inner wall of the outer sleeve, and the outer sleeve is connected to the two locking blocks respectively through the four torsion springs.

[0013] Furthermore, two bottom blocks are symmetrically fixedly installed at the bottom of the sheath shell, and a connecting bracket is fixedly installed on each bottom block.

[0014] Furthermore, a slider is movably mounted on the outer side of each of the connecting frames, and a bottom shell is fixedly mounted on both sliders. A loading shell is movably mounted on the bottom shell.

[0015] Furthermore, two threaded blocks are symmetrically fixedly installed on both sides of the bottom shell, and a fixing bolt is installed on the inner thread of each threaded block. A clamping plate is movably installed between the threaded block and the fixing bolt, and the two clamping plates abut against the loading shell together.

[0016] Furthermore, a bottom sleeve is fixedly installed at the bottom of the bottom shell, an extension rod is threaded on the inner side of the bottom sleeve, and a pad is fixedly installed at the bottom of the extension rod.

[0017] The beneficial effects of this invention are:

[0018] (1) The sheath flange with stable connection described in this invention fixes the rotating block by engaging the locking block with the sawtooth ring, so that the limiting cover limits and fixes the mounting bolt. The spring uses its own elasticity to support the sheath shell through the movable rod, so that the sheath shell supports the limiting shell, thereby increasing the stability of the mounting bolt and preventing the mounting bolt from loosening due to vibration.

[0019] (2) The sheathed flange with stable connection described in this invention, when the first flange and the second flange are installed horizontally, the loading shell can load the disassembled mounting nuts, mounting bolts and oil stains and other impurities at the connection, thereby facilitating the maintenance work of the staff.

[0020] (3) The sheathed flange with stable connection described in this invention allows the extension rod to move out of the inner side of the bottom sleeve by twisting the pad, so that the pad can abut against the ground or wall, thereby supporting the flange connection through the extension rod and the bottom sleeve, increasing the stability of the connection. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Figure 1 This is a three-dimensional structural diagram of a stable sheathed flange according to the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the sheath shell of a stable sheath flange according to the present invention;

[0024] Figure 3 This is an exploded three-dimensional structural diagram of a rubber gasket for a stable sheathed flange according to the present invention.

[0025] Figure 4 This is an exploded three-dimensional structural diagram of the first pipe body of a stable sheath flange according to the present invention.

[0026] Figure 5 This is an exploded three-dimensional structural diagram of the mounting bolts for a stable sheathed flange according to the present invention.

[0027] Figure 6 This is an exploded three-dimensional structural diagram of the outer sleeve of a stable sheath flange according to the present invention;

[0028] Figure 7 This is an exploded three-dimensional structural diagram of a serrated ring of a stable sheath flange according to the present invention.

[0029] Figure 8 This is a three-dimensional structural diagram of the loading shell of a stable sheath flange according to the present invention;

[0030] Figure 9 This is a three-dimensional structural diagram of the extension rod of a stable sheath flange according to the present invention.

[0031] In the diagram: 1. First pipe body; 2. First flange; 3. Rubber gasket; 4. Second flange; 5. Second pipe body; 6. Mounting bolt; 7. Sheath; 701. Rubber ring; 8. Mounting piece; 9. Mounting nut; 10. Limiting ring; 11. Half ring; 12. Threaded bolt; 13. Fixing block; 14. Round sleeve; 15. Spring; 16. Movable rod; 17. Side block; 18. Extrusion bolt; 19. Threaded sleeve; 20. Rotating block; 21. Limiting cover; 22. Serrated ring; 23. Outer sleeve; 24. Inner rod; 25. Clamping block; 26. Torsion spring; 27. Bottom block; 28. Connecting frame; 29. ​​Sliding block; 30. Bottom shell; 31. Threaded block; 32. Fixing bolt; 33. Clamping plate; 34. Loading shell; 35. Bottom sleeve; 36. Extension rod; 37. Pad block. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] like Figures 1-9 As shown, the present invention provides a stable sheathed flange, comprising a first pipe body 1, a first flange 2 fixedly mounted on one side of the first pipe body 1, a plurality of mounting bolts 6 provided on the first flange 2, a rubber gasket 3 provided on the first flange 2 via the plurality of mounting bolts 6, a second flange 4 provided on one side of the rubber gasket 3, a second pipe body 5 fixedly mounted on one side of the second flange 4, a sheath 7 provided on the outer side of the first flange 2 and the second flange 4, a rubber ring 701 provided on the sheath 7 and fitting against the first pipe body 1, an mounting piece 8 provided on the inner side of the sheath 7, the mounting piece 8 being located outside the plurality of mounting bolts 6 and fitting against the second flange 4, a mounting nut 9 threadedly mounted on each mounting bolt 6, and the plurality of mounting nuts 9 abutting against the mounting piece 8.

[0034] Specifically, the second pipe body 5 is moved so that, under the action of external force, the second flange 4 is moved to one side of the first flange 2. The rubber gasket 3 is moved between the first flange 2 and the second flange 4, aligning the holes of the three. By tightening multiple mounting bolts 6, the mounting bolts 6 are moved into the inner side of the second flange 4 under the thread support of the first flange 2 and the second flange 4. The first pipe body 1 and the second pipe body 5 are connected by fixing the first flange 2 and the second flange 4. The sheath 7 on the first pipe body 1 is moved to the connection point. The mounting piece 8 on the second pipe body 5 is moved and fitted onto the outside of the multiple mounting bolts 6 and fits against the second flange 4. By tightening the mounting nut 9 onto the mounting bolt 6, the mounting piece 8 is fixed inside the sheath 7, so that the mounting piece 8 and the sheath 7 cooperate to seal the connection point.

[0035] In this embodiment, the first pipe body 1 is provided with an installation mechanism, the installation mechanism is provided with a support mechanism, and the support mechanism is connected to the sheath 7. The sheath 7 is provided with multiple stabilizing mechanisms, which are used to reinforce the mounting bolts 6. The stabilizing mechanism includes a rotating block 20 fixedly mounted on the sheath 7 via bearings. A limit cover 21 is fixedly mounted on the rotating block 20, and the limit cover 21 is located outside the mounting bolt 6 at the corresponding position. A serrated ring 22 is fixedly mounted on the rotating block 20. An outer sleeve 23 is fixedly mounted on the sheath 7, and the outer sleeve 23 is located outside the rotating block 20. Two inner rods 24 are fixedly mounted on the inner wall of the outer sleeve 23. A locking block 25 is movably mounted on each inner rod 24, and the two locking blocks 25 are engaged with the serrated ring 22. Four torsion springs 26 are connected to the inner wall of the outer sleeve 23, and the outer sleeve 23 is connected to the two locking blocks 25 respectively through the four torsion springs 26. The mounting mechanism includes two limiting rings 10 fixedly mounted on the first pipe body 1. Two semi-rings 11 are arranged between the two limiting rings 10, and the two semi-rings 11 are located on the outer side of the first pipe body 1. Two threaded bolts 12 are threadedly mounted on the two semi-rings 11. The support mechanism includes two fixing blocks 13 fixedly mounted on the semi-rings 11. A circular sleeve 14 is fixedly mounted on each fixing block 13. A spring 15 is connected to one inner wall of each circular sleeve 14. A movable rod 16 is fixedly mounted at the end of each spring 15, and the movable rod 16 is located inside the circular sleeve 14. The ends of multiple movable rods 16 are fixedly fixed to the sheath shell 7. The support mechanism also includes a side block 17 fixedly mounted on the semi-rings 11. Two threaded sleeves 19 are fixedly mounted on the sheath shell 7. A compression bolt 18 is threadedly mounted on the inner side of each threaded sleeve 19, and each compression bolt 18 is located inside the corresponding side block 17.

[0036] Specifically, the sheath 7 on the first pipe body 1 is moved to the connection between the first flange 2 and the second flange 4, causing the half-ring 11 to move between the two limiting rings 10 and rotate. Under the action of external force, the sheath 7 drives the limiting cover 21 to move through the rotating block 20, so that all the limiting covers 21 correspond to the positions of all the mounting bolts 6. The two threaded bolts 12 are tightened, causing the threaded bolts 12 to drive one half-ring 11 closer to the other half-ring 11, so that the two half-rings 11 cooperate and are fixed between the two limiting rings 10, clamping the first pipe body 1. The rotating block 20 is rotated clockwise, and under the action of external force, the rotating block 20 drives the serrated ring 22 to rotate, causing the serrated ring 22 to drive the two locking blocks 25 to move, so that the locking blocks 25 are spring-loaded by the torsion spring 26. Under the support of force, the inner rod 24 rotates. The locking block 25, supported by the torsion spring 26, prevents the serrated ring 22 from rotating counterclockwise. The locking block 25 engages with the serrated ring 22, allowing the rotating block 20 to fix the mounting bolt 6 through the limiting cover 21. The rotating block 20, supported by the bearing, drives the limiting cover 21 to rotate, causing the limiting cover 21 to move to the outside of the mounting bolt 6 at the corresponding angle. The locking block 25 engages with the serrated ring 22 to fix the rotating block 20, and the limiting cover 21 limits and fixes the mounting bolt 6. The spring 15 uses its own elasticity to support the protective shell 7 through the movable rod 16, allowing the protective shell 7 to support the limiting shell, thereby increasing the stability of the mounting bolt 6 and preventing the mounting bolt 6 from loosening due to vibration.

[0037] When workers need to remove the first flange 2 and the second flange 4 for maintenance, they remove the mounting nut 9 and mounting piece 8, move the protective sleeve 7, and under the action of external force, move the movable rod 16 into the inner side of the round sleeve 14 to fit it. The protective sleeve 7 drives the threaded bolt 12 to move along the inner side of the side block 17 through the threaded sleeve 19. Workers tighten the threaded bolt, so that the threaded bolt 12 moves under the thread support of the threaded sleeve 19 and contacts the side block 17, thereby fixing the protective sleeve 7. Workers remove the mounting bolt 6 and carry out maintenance work on the connection between the first flange 2 and the second flange 4. After maintenance, the first flange 2 and the second flange 4 are fixed by the mounting bolt 6. Tighten the two threaded bolts 12, so that the spring 15 uses its own elastic force to move the protective sleeve 7 to the connection. Then, the mounting piece 8 and the mounting nut 9 can be installed.

[0038] In this embodiment, two bottom blocks 27 are symmetrically fixedly installed on the bottom of the sheath shell 7. A connecting frame 28 is fixedly installed on each bottom block 27. A slider 29 is movably installed on the outer side of each connecting frame 28. A bottom shell 30 is fixedly installed on both sliders 29. A loading shell 34 is movably installed on the bottom shell 30. Two threaded blocks 31 are symmetrically fixedly installed on both sides of the bottom shell 30. A fixing bolt 32 is threaded on the inner side of each threaded block 31. A clamping plate 33 is movably installed between the threaded block 31 and the fixing bolt 32, and the two clamping plates 33 abut against the loading shell 34.

[0039] Specifically, during maintenance, the protective housing 7 is moved, causing the housing 7 to move the loading housing 34 via the base block 27, connecting frame 28, slider 29, and bottom housing 30 under external force. Then, the loading housing 34 is moved, causing the slider 29 to move along the connecting frame 28 via the bottom housing 30 under external force, moving the loading housing 34 to the bottom of the connection. When the first flange 2 and the second flange 4 are installed laterally, the loading housing 34 can hold the removed mounting nuts 9, mounting bolts 6, and oil stains and other impurities at the connection, facilitating maintenance. The fixing bolt 32 is tightened, causing it to move under the threaded support of the threaded block 31, so that the fixing bolt 32 no longer clamps the clamping plate 33, and the two clamping plates 33 no longer hold the loading housing 34. The workers clean the inside of the loading housing 34, place the loading housing 34 on the bottom housing 30, and tighten the fixing bolt 32 to clamp the loading housing 34.

[0040] In this embodiment, a bottom sleeve 35 is fixedly installed on the bottom of the bottom shell 30, an extension rod 36 is threaded on the inner side of the bottom sleeve 35, and a pad 37 is fixedly installed on the bottom of the extension rod 36.

[0041] Specifically, by twisting the pad 37, the extension rod 36 is moved out of the inner side of the base sleeve 35, allowing the pad 37 to abut against the ground or wall. This allows the pad 37 to support the flange connection through the extension rod 36 and the base sleeve 35, increasing the stability of the connection.

[0042] Working principle: The operator moves the second pipe body 5, causing the second flange 4 to move to one side of the first flange 2 under external force. The rubber gasket 3 is then moved between the first flange 2 and the second flange 4, aligning their holes. By tightening multiple mounting bolts 6, the bolts are moved into the inner side of the second flange 4 under the threaded support of the first flange 2 and the second flange 4. The first pipe body 1 and the second pipe body 5 are connected by fixing the first flange 2 and the second flange 4. The sheath 7 on the first pipe body 1 is moved to the connection point, and the mounting piece 8 on the second pipe body 5 is moved and fitted. On the outside of multiple mounting bolts 6 and in contact with the second flange 4, the mounting nut 9 is tightened and fixed to the mounting bolt 6, so that the mounting piece 8 is fixed to the inside of the protective shell 7. The mounting piece 8 and the protective shell 7 cooperate to seal the connection. The rotating block 20 is fixed by the locking block 25 engaging with the serrated ring 22, so that the limiting cover 21 limits and fixes the mounting bolt 6. The spring 15 uses its own elasticity to support the protective shell 7 through the movable rod 16, so that the protective shell 7 supports the limiting shell, thereby increasing the stability of the mounting bolt 6 and preventing the mounting bolt 6 from loosening due to vibration.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stable sheathed flange, comprising a first pipe body (1), a first flange (2) fixedly installed on one side of the first pipe body (1), a plurality of mounting bolts (6) provided on the first flange (2), a rubber gasket (3) provided on the first flange (2) through the plurality of mounting bolts (6), a second flange (4) provided on one side of the rubber gasket (3), a second pipe body (5) fixedly installed on one side of the second flange (4), a sheath shell (7) provided on the outside of the first flange (2) and the second flange (4), a rubber ring (701) provided on the sheath shell (7), and the rubber ring (701) fitting against the first pipe body (1), characterized in that: It also includes installation mechanisms, support mechanisms, and multiple stabilization mechanisms; The first tube body (1) is provided with an installation mechanism, the installation mechanism is provided with a support mechanism, and the support mechanism is connected to the sheath shell (7). The sheath shell (7) is provided with multiple stabilizing mechanisms, which are used to reinforce the installation bolts (6). The inner side of the sheath (7) is provided with a mounting plate (8), and the mounting plate (8) is located outside the plurality of mounting bolts (6) and is in contact with the second flange (4). Each mounting bolt (6) is threaded with a mounting nut (9), and the plurality of mounting nuts (9) abut against the mounting plate (8). The installation mechanism includes two limiting rings (10) fixedly installed on the first pipe body (1), two half rings (11) are provided between the two limiting rings (10), and the two half rings (11) are located on the outer side of the first pipe body (1), and two threaded bolts (12) are threaded together on the two half rings (11). The support mechanism includes two fixed blocks (13) fixedly installed on the semi-ring (11). A circular sleeve (14) is fixedly installed on each fixed block (13). A spring (15) is connected to one inner wall of each circular sleeve (14). A movable rod (16) is fixedly installed at the end of each spring (15). The movable rod (16) is located inside the circular sleeve (14). The ends of multiple movable rods (16) are fixed together with the protective shell (7). The support mechanism also includes a side block (17) fixedly installed on the semi-ring (11), and two threaded sleeves (19) fixedly installed on the sheath (7). Each threaded sleeve (19) has a compression bolt (18) installed on its inner thread, and each compression bolt (18) is located inside the side block (17) at the corresponding position. The stabilizing mechanism includes a rotating block (20) fixedly mounted on the sheath (7) via bearings. A limit cover (21) is fixedly mounted on the rotating block (20), and the limit cover (21) is located outside the mounting bolt (6) at the corresponding position. A serrated ring (22) is fixedly mounted on the rotating block (20). An outer sleeve (23) is fixedly mounted on the sheath (7), and the outer sleeve (23) is located outside the rotating block (20). Two inner rods (24) are fixedly mounted on the inner wall of the outer sleeve (23). A locking block (25) is movably mounted on each inner rod (24), and the two locking blocks (25) are engaged with the serrated ring (22). Four torsion springs (26) are connected to the inner wall of the outer sleeve (23), and the outer sleeve (23) is connected to the two locking blocks (25) respectively through the four torsion springs (26).

2. The sheathed flange with stable connection according to claim 1, characterized in that: The bottom of the sheath (7) has two bottom blocks (27) fixedly installed symmetrically, and each bottom block (27) has a connecting bracket (28) fixedly installed on it.

3. A stable sheathed flange according to claim 2, characterized in that: Each of the connecting frames (28) has a slider (29) movably mounted on its outer side, and a bottom shell (30) is fixedly mounted on both sliders (29). A loading shell (34) is movably mounted on the bottom shell (30).

4. A stable sheathed flange according to claim 3, characterized in that: Two threaded blocks (31) are symmetrically fixedly installed on both sides of the bottom shell (30). Each threaded block (31) has a fixing bolt (32) installed on its inner thread. A clamping plate (33) is movably installed between the threaded block (31) and the fixing bolt (32), and the two clamping plates (33) abut against the loading shell (34).

5. A stable sheathed flange according to claim 4, characterized in that: The bottom of the bottom shell (30) is fixedly installed with a bottom sleeve (35), and an extension rod (36) is threaded on the inner side of the bottom sleeve (35). A pad (37) is fixedly installed at the bottom of the extension rod (36).

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