CN215173030U - High-air-tightness plate type flat welding flange - Google Patents
High-air-tightness plate type flat welding flange Download PDFInfo
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- CN215173030U CN215173030U CN202121468346.6U CN202121468346U CN215173030U CN 215173030 U CN215173030 U CN 215173030U CN 202121468346 U CN202121468346 U CN 202121468346U CN 215173030 U CN215173030 U CN 215173030U
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- type flat
- rotary drum
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Abstract
The utility model discloses a high-airtightness plate type flat welding flange in the field of flange connection, which comprises a first flange and a second flange, wherein the surface of the right end of the first flange is uniformly provided with a plurality of tightening mechanisms for simultaneously tightening a plurality of bolts, the surface of the first flange is provided with a first connecting hole at the inner part of the tightening mechanism, and the first connecting hole penetrates through the surface of the first flange; a plurality of second connecting holes are uniformly formed in the surface of the second flange and penetrate through the surface of the second flange; a bolt is arranged in the tightening mechanism and is in clearance fit with the first connecting hole and the second connecting hole; the left end surface of the second flange is fixedly connected with a fixing ring at the position of the second connecting hole, a nut is clamped and matched in the fixing ring, and the nut is in threaded fit with the bolt; a first sealing gasket and a second sealing gasket are respectively arranged at the mutual contact positions of the surfaces of the first flange and the second flange; the device gas tightness is high, when connecting, can make all bolts rotate simultaneously and screw up, has effectually saved the joining time.
Description
Technical Field
The utility model relates to a flange technical field specifically is a plate-type flat welding flange of high gas tightness.
Background
The plate type flat welding flange has the advantages of convenient material taking, simple manufacture, low cost, wide use and the like; but the rigidity is poor, so the method cannot be used for chemical process piping systems with the requirements of supply and demand, flammability, explosiveness and higher vacuum degree and occasions with high height and extreme harm.
Present plate-type flat welding flange is when the butt joint, can place a rubber gasket between two butt joint faces usually, and the rubber gasket with connect the face surface and all be level and smooth, therefore the gas tightness is poor, present plate-type flat welding flange surface is equipped with a plurality of bolts simultaneously, need be in proper order when connecting tighten all bolts, time waste relatively.
Therefore, the utility model provides a high gas tightness plate type flat welding flange to solve the problem that proposes in the above-mentioned background art.
Disclosure of Invention
An object of the utility model is to provide a plate-type flat welding flange of high gas tightness to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a high-air-tightness plate type flat welding flange comprises a first flange and a second flange, wherein a plurality of tightening mechanisms used for simultaneously tightening a plurality of bolts are uniformly arranged on the surface of the right end of the first flange; a plurality of second connecting holes are uniformly formed in the surface of the second flange and penetrate through the surface of the second flange; a bolt is arranged in the tightening mechanism and is in clearance fit with the first connecting hole and the second connecting hole; a fixing ring is fixedly connected to the surface of the left end of the second flange at the position of the second connecting hole, a nut is clamped and matched in the fixing ring, and the nut is in threaded fit with the bolt; and the mutual contact positions of the surfaces of the first flange and the second flange are respectively provided with a first sealing gasket and a second sealing gasket.
As a further aspect of the present invention: the tightening mechanism comprises a rotary drum, a hexagonal groove is formed in the rotary drum, and the hexagonal groove is in clearance fit with the bolt; the position of the surface of the rotary drum close to the left side is fixedly connected with an outer gear ring, and the position of the surface of the rotary drum close to the right side is fixedly connected with a hexagonal block; can drive inside bolt when the rotary drum rotates through the hexagonal groove and rotate, the bolt can also slide in the hexagonal groove simultaneously, can pull the hexagonal piece through the spanner and drive the rotary drum and rotate.
As a further aspect of the present invention: the surface of the outer gear ring is engaged with a gear, the gear is rotationally connected with the first flange, and the other end of the surface of the gear is engaged with the other outer gear ring; when the rotary drum rotates, the outer gear rings on the surface of the rotary drum can be driven to rotate, the outer gear rings drive the gears to rotate in opposite directions, the gears can drive the other outer gear ring to rotate in the direction opposite to the gears, and under the action of the gears and the inner gear rings, all the inner gear rings can drive the rotary drum to rotate in the same direction.
As a further aspect of the present invention: a chamfer is formed at the right end opening of the hexagonal groove; the chamfer angle is arranged at the opening of the hexagonal groove, so that the effect of conveniently inserting the bolt into the hexagonal groove can be achieved.
As a further aspect of the present invention: the first sealing gasket and the second sealing gasket are made of rubber materials, a plurality of convex parts and concave parts are arranged on the surfaces of the first sealing gasket and the second sealing gasket, and the convex parts on the surface of the first sealing gasket are attached to the concave parts on the surface of the second sealing gasket; through the protruding part of first sealed pad surface and the laminating of the sealed sunken part of second, can effectually promote the gas tightness between first sealed pad and the sealed pad of second.
Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
the device has the advantages that the surfaces of the first gasket and the second gasket are respectively provided with a plurality of convex parts and concave parts, and the convex parts on the surface of the first gasket are just in cross fit with the concave parts on the surface of the second gasket, so that the air tightness of the device can be effectively improved; the device has reached can effectually promote holistic gas tightness, can also make simultaneously all bolts rotate simultaneously and screw up, the effectual connection time that has saved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic view of the split structure of the present invention;
fig. 3 is a schematic structural view of a cross-sectional view of a front view of the present invention;
fig. 4 is an enlarged structural diagram of a in fig. 3.
In the figure: 1-a first flange, 2-a second flange, 3-a first connecting hole, 4-a second connecting hole, 5-a bolt, 6-a fixing ring, 7-a nut, 8-a first sealing gasket, 9-a second sealing gasket, 10-a rotating drum, 11-a hexagonal groove, 12-an outer gear ring, 13-a hexagonal block and 14-a gear.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1 to 4, in an embodiment of the present invention, a high-airtightness plate-type flat welding flange includes a first flange 1 and a second flange 2, a plurality of tightening mechanisms for simultaneously tightening a plurality of bolts 5 are uniformly disposed on a surface of a right end of the first flange 1, a first connection hole 3 is disposed on a surface of the first flange 1 inside the tightening mechanisms, and the first connection hole 3 penetrates through a surface of the first flange 1; a plurality of second connecting holes 4 are uniformly formed in the surface of the second flange 2, and the second connecting holes 4 penetrate through the surface of the second flange 2; a bolt 5 is arranged in the tightening mechanism, and the bolt 5 is in clearance fit with the first connecting hole 3 and the second connecting hole 4; the left end surface of the second flange 2 is fixedly connected with a fixing ring 6 at the position of the second connecting hole 4, a nut 7 is clamped and matched in the fixing ring 6, and the nut 7 is in threaded fit with the bolt 5; the first sealing gasket 8 and the second sealing gasket 9 are respectively arranged at the positions where the surfaces of the first flange 1 and the second flange 2 are contacted with each other.
In this embodiment: the tightening mechanism comprises a rotary drum 10, a hexagonal groove 11 is formed in the rotary drum 10, and the hexagonal groove 11 is in clearance fit with the bolt 5; the surface of the rotary drum 10 is fixedly connected with an outer gear ring 12 at a position close to the left side, and the surface of the rotary drum 10 is fixedly connected with a hexagonal block 13 at a position close to the right side; can drive inside bolt 5 through hexagonal groove 11 and rotate when rotary drum 10 rotates, bolt 5 can also slide in hexagonal groove 11 simultaneously, can pull hexagonal piece 13 through the spanner and drive rotary drum 10 and rotate.
In this embodiment: the surface of the outer gear ring 12 is engaged with a gear 14, the gear 14 is rotationally connected with the first flange 1, and the other end of the surface of the gear 14 is engaged with the other outer gear ring 12; when the rotary drum 10 rotates, the outer gear ring 12 on the surface of the rotary drum 10 can be driven to rotate, the outer gear ring 12 drives the gear 14 to rotate in the opposite direction, the gear 14 can drive the other outer gear ring 12 to rotate in the opposite direction to the gear 14, and under the action of the gears 14 and the inner gear rings, all the inner gear rings can drive the rotary drum 10 to rotate in the same direction.
In this embodiment: a chamfer is arranged at the opening at the right end of the hexagonal groove 11; the opening of the hexagonal groove 11 is provided with a chamfer, so that the bolt 5 can be conveniently inserted into the hexagonal groove 11.
In this embodiment: the first sealing gasket 8 and the second sealing gasket 9 are made of rubber materials, a plurality of convex parts and concave parts are arranged on the surfaces of the first sealing gasket 8 and the second sealing gasket 9, and the convex parts on the surface of the first sealing gasket 8 are attached to the concave parts on the surface of the second sealing gasket 9; through the protruding part of first sealed 8 surface of filling up and the laminating of the sunken part of second sealed 9, can effectually promote the gas tightness between first sealed 8 and the second sealed 9 of filling up.
The utility model discloses a theory of operation is:
when the device is used, a plurality of nuts 7 are respectively clamped in a plurality of fixing rings 6 on the surface of the second flange 2, then after inserting the plurality of bolts 5 into the hexagonal grooves 11 inside the plurality of tumblers 10 and butting the bolts 5 with the nuts 7 through the first and second connection holes 3 and 4, when the bolts 5 are fully inserted into the hexagonal grooves 11, the first gasket 8 on the surface of the first flange 1 is abutted with the second gasket 9 on the surface of the second flange 2, and then one of the drums 10 is rotated by a wrench, the rotary drum 10 drives an outer gear ring 12 on the surface to rotate, the outer gear ring 12 drives another outer gear ring 12 to rotate in the same direction through a gear 14, under the action of the gears 14 and the outer gear ring 12, all the rotary drums 10 rotate in the same direction, the rotary drums 10 drive the bolts 5 to rotate through the hexagonal grooves 11, and the bolts 5 enable the first flange 1 and the second flange 2 to be tightly connected under the action of the nuts 7 when rotating.
Claims (5)
1. The utility model provides a plate-type flush joint flange of high gas tightness, includes first flange (1) and second flange (2), its characterized in that: the surface of the right end of the first flange (1) is uniformly provided with a plurality of tightening mechanisms for simultaneously tightening a plurality of bolts (5), the surface of the first flange (1) is provided with a first connecting hole (3) at the inner part of the tightening mechanism, and the first connecting hole (3) penetrates through the surface of the first flange (1); a plurality of second connecting holes (4) are uniformly formed in the surface of the second flange (2), and the second connecting holes (4) penetrate through the surface of the second flange (2); a bolt (5) is arranged inside the tightening mechanism, and the bolt (5) is in clearance fit with the first connecting hole (3) and the second connecting hole (4); the left end surface of the second flange (2) is fixedly connected with a fixing ring (6) at the position of the second connecting hole (4), a nut (7) is clamped and matched in the fixing ring (6), and the nut (7) is in threaded fit with the bolt (5); and the surfaces of the first flange (1) and the second flange (2) are provided with a first sealing gasket (8) and a second sealing gasket (9) at the mutual contact positions respectively.
2. The high-airtightness plate type flat-welded flange according to claim 1, wherein: the tightening mechanism comprises a rotary drum (10), a hexagonal groove (11) is formed in the rotary drum (10), and the hexagonal groove (11) is in clearance fit with the bolt (5); the surface of the rotary drum (10) is fixedly connected with the outer gear ring (12) at a position close to the left side, and the surface of the rotary drum (10) is fixedly connected with the hexagonal block (13) at a position close to the right side.
3. The high-airtightness plate type flat-welded flange according to claim 2, wherein: the surface of the outer gear ring (12) is meshed with a gear (14), the gear (14) is rotationally connected with the first flange (1), and the other end of the surface of the gear (14) is meshed with the other outer gear ring (12).
4. The high-airtightness plate type flat-welded flange according to claim 2, wherein: a chamfer is arranged at the right end opening of the hexagonal groove (11).
5. The high-airtightness plate type flat-welded flange according to claim 1, wherein: first sealed pad (8) and second sealed pad (9) are the rubber material and first sealed pad (8) and second sealed pad (9) surface all is equipped with a plurality of convex parts and depressed part, first sealed pad (8) surface convex part seals up (9) surface depressed part laminating with the second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121468346.6U CN215173030U (en) | 2021-06-30 | 2021-06-30 | High-air-tightness plate type flat welding flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121468346.6U CN215173030U (en) | 2021-06-30 | 2021-06-30 | High-air-tightness plate type flat welding flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215173030U true CN215173030U (en) | 2021-12-14 |
Family
ID=79381251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121468346.6U Active CN215173030U (en) | 2021-06-30 | 2021-06-30 | High-air-tightness plate type flat welding flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215173030U (en) |
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2021
- 2021-06-30 CN CN202121468346.6U patent/CN215173030U/en active Active
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