Flange sealing device

Abstract

The utility model discloses a flange sealing device, which relates to the technical field of flange sealing and comprises a first flange, and a second flange is mounted at the upper end of the first flange. Through the cooperation of the first mounting base, the second mounting base, the second screw rod, the second nut, the groove, the sealing clamping ring, the connecting groove, the connecting ring, the butt joint groove and the butt joint ring, the first flange and the second flange can be preliminarily fixed through the second screw rod and the second nut, and meanwhile the sealing performance between the two flanges is achieved through the connecting ring; the connecting ring cannot be corroded by the medium in the medium, so that the condition that the medium leaks between the connecting ends of the two flanges after a long time is avoided, and the joint of the first flange and the second flange can be clamped and fixed under the cooperation of the first fastening ring, the rotating shaft, the second fastening ring, the first butt-joint plate, the second butt-joint plate, the through hole, the first screw rod and the first nut; and therefore, the flange is not easy to deviate in the use process, and the stability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange sealing, in particular to a flange sealing device. 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. There are also flanges used on the inlet and outlet of equipment, which are used to connect two devices, such as reducer flanges. Flange connection or flange joint refers to a detachable connection that is connected by flanges, gaskets and bolts as a combined sealing structure. Pipe flange refers to the flange used for piping in pipeline devices. When used on equipment, it refers to the inlet and outlet flanges of the equipment. There are holes on the flange, and bolts connect the two flanges tightly. Gaskets are used to seal between flanges. Flanges are divided into threaded flanges, welding flanges and clamping flanges. Flanges are used in pairs. Threaded flanges can be used for low-pressure pipelines, and welding flanges can be used for pressures above four kilograms.

[0003] The existing technology has the following problems:

[0004] In actual use of the existing devices, at present, in the water injection system, flanges are mostly used to connect the pipes and valves. However, since the medium transported in the pipes often has a certain degree of corrosion on the flanges, leakage will occur at the contact parts between the flanges after a period of time, posing a great safety hazard. At the same time, the flanges cannot be reinforced after installation, making the flanges easy to shift during use, thereby reducing the stability of the equipment and being detrimental to the normal use of the equipment. Utility Model Content

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A flange sealing device comprises a first flange, a second flange is mounted on the upper end of the first flange, a fastening mechanism is sleeved on the outside of the first flange and the second flange, and a fixing mechanism is mounted at the connection between the first flange and the second flange.

[0007] Preferably: the fastening mechanism includes a fastening ring 1, the inner side of the fastening ring 1 is movably connected to the outside of the first flange and the second flange, one side of the fastening ring 1 is movably hinged with a rotating shaft, one side of the rotating shaft is movably hinged with a fastening ring 2, the other side of the fastening ring 1 is fixedly installed with a docking plate 1, the other side of the fastening ring 2 is fixedly installed with a docking plate 2, a through hole is opened in the middle of the docking plate 1 and the docking plate 2, a screw 1 is movably inserted inside the through hole, and a nut 1 is sleeved on the outside of the screw 1.

[0008] Preferably, the first fastening ring and the second fastening ring are both arc-shaped.

[0009] Preferably, the outer portion of the screw rod 1 is threadedly connected to the inner portion of the nut 1.

[0010] Preferably: the fixing mechanism includes a mounting seat 1, one side of the mounting seat 1 is fixedly connected to the upper end of the first flange, the lower end of the second flange is fixedly installed with a mounting seat 2, a screw 2 is movably inserted between the mounting seat 1 and the mounting seat 2, and a nut 2 is sleeved on the outer surface of the screw 2, a groove is provided in the middle of the opposing surfaces of the first flange and the second flange, a sealing clamp is installed inside the groove, connecting grooves are provided on both sides of the lower end of the sealing clamp, a connecting ring is installed inside the connecting groove, a docking groove is provided on the upper end of the first flange, and a docking ring is fixedly installed on the lower end of the second flange.

[0011] Preferably, the outer surface of the lower end of the second screw is connected to the inner thread of the second nut, and the groove matches the sealing clamp ring and is movably connected.

[0012] Preferably: the connecting groove matches the connecting ring and is movably connected, the docking groove matches the docking ring and is movably connected, the sealing clamp ring is a metal ring, and the connecting ring is a flexible anti-corrosion reinforcement ring.

[0013] Preferably, the first flange is movably connected to the lower end of the second flange, and the inner sides of the fastening ring 1 and the fastening ring 2 are movably connected to the connection between the first flange and the second flange.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a flange sealing device, which can initially fix the first flange and the second flange by means of the fixing mechanism, the cooperation of the first mounting seat, the second mounting seat, the second screw, the second nut, the groove, the sealing clamp, the connecting groove, the connecting ring, the docking groove and the docking ring, and at the same time, the sealing between the two flanges is achieved by the connecting ring, and the connecting ring will not be corroded by the medium in the medium, so the medium leakage between the connecting ends of the two flanges after a long time is avoided.

[0016] 2. The utility model provides a flange sealing device, which can clamp and fix the connection between the first flange and the second flange through the cooperation of a fastening mechanism, a fastening ring 1, a rotating shaft, a fastening ring 2, a docking plate 1, a docking plate 2, a through hole, a screw 1, and a nut 1, so that the flange is not easily offset during use, thereby improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the flange sealing device of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the flange sealing device of the utility model in detail;

[0019] Figure 3 It is a structural schematic diagram of the fastening mechanism of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the detail diagram of the fixing mechanism of the utility model.

[0022] In the figure: 1. first flange; 2. second flange; 3. fastening mechanism; 4. fixing mechanism; 31. fastening ring 1; 32. rotating shaft; 33. fastening ring 2; 34. docking plate 1; 35. docking plate 2; 36. through hole; 37. screw 1; 38. nut 1; 41. mounting seat 1; 42. mounting seat 2; 43. screw 2; 44. nut 2; 45. groove; 46. sealing clamp; 47. connecting groove; 48. connecting ring; 49. docking groove; 410. docking ring. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the embodiments:

[0024] like Figure 1-5 As shown, the utility model provides a flange sealing device, including a first flange 1, a second flange 2 is installed on the upper end of the first flange 1, a fastening mechanism 3 is sleeved on the outside of the first flange 1 and the second flange 2, and a fixing mechanism 4 is installed at the connection between the first flange 1 and the second connection.

[0025] The first flange 1 is movably connected to the lower end of the second flange 2 , and the inner sides of the fastening ring 1 31 and the fastening ring 2 33 are movably connected to the connection between the first flange 1 and the second flange 2 .

[0026] The fastening mechanism 3 can be used to clamp and fix the connection between the first flange 1 and the second flange 2, so that the flanges are not easily offset during use, thereby improving the stability of the equipment. The fixing mechanism 4 can be used to initially fix the first flange 1 and the second flange 2 by means of the screw 2 43 and the nut 2 44, and the sealing between the two flanges is achieved by the connecting ring 48. The connecting ring 48 will not be corroded by the medium in the medium, so the medium leakage between the connecting ends of the two flanges after a long time is avoided.

[0027] like Figure 3As shown, the fastening mechanism 3 includes a fastening ring 31, the inner side of the fastening ring 31 is movably connected to the outside of the first flange 1 and the second flange 2, one side of the fastening ring 31 is movably hinged with a rotating shaft 32, one side of the rotating shaft 32 is movably hinged with a fastening ring 2 33, the other side of the fastening ring 31 is fixedly installed with a docking plate 1 34, the other side of the fastening ring 2 33 is fixedly installed with a docking plate 2 35, a through hole 36 is opened in the middle of the docking plate 1 34 and the docking plate 2 35, a screw 1 37 is movably inserted inside the through hole 36, and a nut 1 38 is sleeved on the outside of the screw 1 37.

[0028] The first fastening ring 31 and the second fastening ring 33 are both arc-shaped.

[0029] The outside of the screw rod 37 is threadedly connected to the inside of the nut 38.

[0030] By providing the arc-shaped fastening ring 1 31 and the fastening ring 2 33 , the connecting ends of the first flange 1 and the second flange 2 can be completely wrapped inside and clamped and fixed, so that they are not easily deviated.

[0031] like Figure 4-5 As shown, the fixing mechanism 4 includes a mounting seat 41, one side of which is fixedly connected to the upper end of the first flange 1, a mounting seat 42 is fixedly installed on the lower end of the second flange 2, a screw 43 is movably inserted between the mounting seat 41 and the mounting seat 42, a nut 44 is sleeved on the outer surface of the screw 43, a groove 45 is provided in the middle of the opposing surfaces of the first flange 1 and the second flange 2, a sealing snap ring 46 is installed inside the groove 45, connecting grooves 47 are provided on both sides of the lower end of the sealing snap ring 46, a connecting ring 48 is installed inside the connecting groove 47, a docking groove 49 is provided on the upper end of the first flange 1, and a docking ring 410 is fixedly installed on the lower end of the second flange 2.

[0032] The outer surface of the lower end of the second screw rod 43 is connected to the inner thread of the second nut 44, and the groove 45 matches the sealing clamp ring 46 and is movably connected.

[0033] The connecting groove 47 matches the connecting ring 48 and is movably connected. The docking groove 49 matches the docking ring 410 and is movably connected. The sealing clamp ring 46 is a metal ring and the connecting ring 48 is a flexible anti-corrosion reinforcement ring.

[0034] When the lower end of the second flange 2 contacts the upper end of the first flange 1, the docking ring 410 will be inserted into the docking groove 49, so as to facilitate the rapid docking and installation of the second flange 2. The connecting ring 48 is a flexible anti-corrosion reinforcement ring, so as to avoid leakage of the device due to the corrosion of the medium. At the same time, the connecting ring 48 can be a rubber reinforcement ring or a reinforcement ring made of other materials, as long as it is a flexible anti-corrosion reinforcement ring.

[0035] The working principle of the flange sealing device is described in detail below.

[0036] like Figure 1-5 As shown, when the flange sealing device is used, the connecting ring 48 can be first placed in the connecting grooves 47 on both sides of the sealing snap ring 46 to form a set of assemblies, and then the sealing snap ring 46 is placed in the groove 45 at the upper end of the first flange 1, and then the lower end of the second flange 2 is aligned and contacted with the upper end of the first flange 1, so that the sealing snap ring 46 is also placed in the groove 45 of the second flange 2, thereby completing the sealing, and then one side of the screw rod 43 is passed through the mounting seat 1 41 and the mounting seat 2 42, and then the nut 44 is sleeved on the screw rod 43 and tightened, so that the first flange 1 and The second flange 2 is fixedly connected, and then the arc-shaped fastening ring 1 31 and the fastening ring 2 33 can be sleeved at the connection between the first flange 1 and the second flange 2, so that the docking plate 1 34 and the docking plate 2 35 are in contact, and finally the screw 1 37 is passed through the through hole 36 between the docking plate 1 34 and the docking plate 2 35, and then the nut 1 38 is sleeved on the screw 1 37 and tightened, so that the fastening ring 1 31 and the fastening ring 2 33 can be fixed, so that the first flange 1 and the second flange 2 can be clamped and fixed by the fastening ring 1 31 and the fastening ring 2 33, so that it is not easy to deviate during use.

[0037] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A flange sealing device, comprising a first flange (1), a second flange (2) being mounted on the upper end of the first flange (1), characterized in that: The first flange (1) and the second flange (2) are externally sleeved with a fastening mechanism (3), and a fixing mechanism (4) is installed at the connection between the first flange (1) and the second flange; The fastening mechanism (3) comprises a fastening ring (31), the inner side of which is movably connected to the outer sides of the first flange (1) and the second flange (2); a rotating shaft (32) is movably hinged on one side of the fastening ring (31); a fastening ring (33) is movably hinged on one side of the rotating shaft (32); a docking plate (34) is fixedly installed on the other side of the fastening ring (31); a docking plate (35) is fixedly installed on the other side of the fastening ring (33); a through hole (36) is provided in the middle of the docking plate (34) and the docking plate (35); a screw rod (37) is movably inserted into the interior of the through hole (36); a nut (38) is sleeved on the exterior of the screw rod (37); the inner sides of the fastening ring (31) and the fastening ring (33) are movably connected to the connection between the first flange (1) and the second flange (2); The fixing mechanism (4) comprises a mounting seat 1 (41), one side of which is fixedly connected to the upper end of the first flange (1); a mounting seat 2 (42) is fixedly installed on the lower end of the second flange (2); a screw rod 2 (43) is movably inserted between the mounting seat 1 (41) and the mounting seat 2 (42); a nut 2 (44) is sleeved on the outer surface of the screw rod 2 (43); a groove (45) is provided in the middle of the opposing surfaces of the first flange (1) and the second flange (2); a sealing clamp ring (46) is installed inside the groove (45); connecting grooves (47) are provided on both sides of the lower end of the sealing clamp ring (46); a connecting ring (48) is installed inside the connecting groove (47); a docking groove (49) is provided on the upper end of the first flange (1); and a docking ring (410) is fixedly installed on the lower end of the second flange (2).

2. A flange sealing device according to claim 1, characterized in that: The fastening ring 1 (31) and the fastening ring 2 (33) are both arc-shaped.

3. A flange sealing device according to claim 2, characterized in that: The outer portion of the screw rod 1 (37) is threadedly connected to the inner portion of the nut 1 (38).

4. A flange sealing device according to claim 1, characterized in that: The outer surface of the lower end of the second screw rod (43) is connected to the internal thread of the second nut (44), and the groove (45) matches the sealing clamp ring (46) and is movably connected.

5. A flange sealing device according to claim 4, characterized in that: The connecting groove (47) matches the connecting ring (48) and is movably connected, the docking groove (49) matches the docking ring (410) and is movably connected, the sealing clamp ring (46) is a metal ring, and the connecting ring (48) is a flexible anti-corrosion reinforcement ring.

6. A flange sealing device according to claim 1, characterized in that: The first flange (1) is movably connected to the lower end of the second flange (2).

Images