CN221300138U - Butterfly valve capable of quickly replacing butterfly plate sealing ring - Google Patents
Butterfly valve capable of quickly replacing butterfly plate sealing ring Download PDFInfo
- Publication number
- CN221300138U CN221300138U CN202323408448.0U CN202323408448U CN221300138U CN 221300138 U CN221300138 U CN 221300138U CN 202323408448 U CN202323408448 U CN 202323408448U CN 221300138 U CN221300138 U CN 221300138U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- valve
- butterfly
- butterfly plate
- valve body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007789 sealing Methods 0.000 title claims abstract description 44
- 230000000149 penetrating effect Effects 0.000 claims abstract 3
- 238000000034 method Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
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- Lift Valve (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Abstract
The butterfly valve comprises a valve body, wherein a valve rod is arranged in the valve body in a penetrating manner in the radial direction, a butterfly plate is fixedly arranged on the valve rod, the butterfly plate is arranged in the valve body, an annular step is arranged in the right end face of the butterfly plate, a sealing ring is arranged on the annular step, a pressing ring is arranged on the right side of the sealing ring, through holes are uniformly distributed in the end face of the pressing ring in the circumferential direction, rotating pins are arranged in the through holes, a clamping block is connected to the outer ends of the rotating pins, and limiting pins are arranged in the inner ends of the rotating pins in a penetrating manner in the radial direction. The valve body is provided with the access hole with the access cover, the damaged butterfly valve sealing ring can be directly replaced from the pipe network, the damaged sealing ring can be taken out and replaced by disassembling the access cover during overhaul, the whole valve is not required to be removed, and the maintenance time of the valve is reduced. The clamp plate on the sealing ring is fastened with the butterfly plate through the rotating pin, and the rotating pin can be screwed or loosened after rotating by 90 degrees, so that the pressing ring and the sealing ring can be quickly installed or detached, the assembly efficiency is improved, and the replacement process of the sealing ring is simplified.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a valve, and particularly relates to a butterfly valve capable of quickly replacing a butterfly plate sealing ring.
Background
The butterfly valve is often used to the last hard seal butterfly valve that often uses of material conveying pipe network, among the prior art, the butterfly valve includes the valve body, be provided with the butterfly plate in the valve body, be fixed with the sealing washer through the clamp plate on the butterfly plate, the sealing washer, the valve body constitutes seal structure, the clamp plate is fixed with the butterfly plate through a plurality of screws that distribute along the circumferencial direction, screw quantity is more, the installation dismantlement time is long, the butterfly valve does not have the access hole moreover, in case the butterfly valve sealing washer damages, then need demolish whole valve and just can change the sealing washer, it is very big to dismantle the work load, troublesome operation, the sealing washer replacement cost is high.
Disclosure of Invention
The utility model aims to provide a butterfly valve capable of quickly replacing a butterfly plate sealing ring, which aims to solve the technical problems of great workload and troublesome operation in the installation, disassembly and replacement of the sealing ring in the prior art.
The butterfly valve comprises a valve body, wherein a valve rod penetrates through the valve body in the radial direction, a butterfly plate is fixedly arranged on the valve rod, the butterfly plate is arranged in the valve body, an annular step is arranged in the right end face of the butterfly plate, a sealing ring is arranged on the annular step, a pressing ring is arranged on the right side of the sealing ring on the butterfly plate, at least four through holes are uniformly distributed in the end face of the pressing ring in the circumferential direction, a rotating pin is respectively arranged in any one through hole, the outer end of the rotating pin is connected with a clamping block, the clamping block is clamped on the right side of the pressing ring, a limiting pin penetrates through the inner end of the rotating pin in the radial direction, a concave cavity with the number and the positions corresponding to the through holes is arranged in the right end face of the butterfly plate, a round hole matched with the rotating pin and two rectangular holes matched with the limiting pin are respectively arranged in the outer side wall of the concave cavity, the concave cavity is communicated with the through the round hole, the inner end of the rotating pin penetrates through the round hole, the limiting pin is clamped in the concave cavity, a overhauling hole is arranged on the valve body on one side of the sealing ring, a power box is arranged on the overhauling hole, and a worm wheel box is arranged on the side of the valve rod through a sealing piece.
Further, a convex curved surface is arranged on a plane in the concave cavity, which is in fit contact with the limiting pin.
Compared with the prior art, the utility model has positive and obvious effects.
1. The valve body is provided with the access hole with the access cover, the damaged butterfly valve sealing ring can be directly replaced from the pipe network, the damaged sealing ring can be taken out and replaced by disassembling the access cover during overhaul, the whole valve is not required to be removed, and the maintenance time of the valve is reduced.
2. The clamp plate on the sealing ring is fastened with the butterfly plate through the rotating pin, and the rotating pin can be screwed or loosened after rotating by 90 degrees, so that the pressing ring and the sealing ring can be quickly installed or detached, the assembly efficiency is improved, and the replacement process of the sealing ring is simplified.
Drawings
FIG. 1 is a schematic cross-sectional view of a butterfly valve with a butterfly plate seal ring quickly replaceable in accordance with the present utility model.
Fig. 2 is an enlarged partial schematic view of fig. 1.
FIG. 3 is a schematic view of a circular hole and a rectangular hole in a butterfly valve with a butterfly plate seal ring capable of being replaced quickly.
Detailed Description
The present utility model is further described in connection with the following examples, but the present utility model is not limited to the examples, and all the similar structures and similar variations using the present utility model should be included in the protection scope of the present utility model. The use of the directions of up, down, front, back, left, right, etc. in the present utility model is only for convenience of description, and is not a limitation of the technical scheme of the present utility model.
As shown in figures 1-3, the butterfly valve capable of rapidly replacing the butterfly plate sealing ring comprises a valve body 1, wherein a valve rod 2 is penetrated in the valve body 1 along the radial direction, a butterfly plate 3 is fixedly arranged on the valve rod 2, the butterfly plate 3 is arranged in the valve body 1, an annular step 4 is arranged in the right end surface of the butterfly plate 3, a sealing ring 5 is arranged on the annular step 4, a pressing ring 6 is arranged on the right side of the sealing ring 5 on the butterfly plate 3, at least four through holes 7 are uniformly distributed in the end surface of the pressing ring 6 along the circumferential direction, a rotating pin 8 is respectively arranged in any through hole 7, a clamping block 9 is connected with the outer end of the rotating pin 8, the clamping block 9 is clamped on the right side of the pressing ring 6, a limiting pin 10 is penetrated in the radial direction at the inner end of the rotating pin 8, a concave cavity 11 with the number and positions corresponding to the through holes 7 are arranged in the right end surface of the butterfly plate 3, a round hole 12 matched with the rotating pin 8 and two rectangular holes 13 matched with the limiting pin 10 are arranged in the outer side wall of the concave cavity 11, two rectangular holes 13 are respectively connected with two sides 12, at the two sides of the rectangular holes 12 are respectively arranged on the two sides of the round holes 12 and the round hole 13 are respectively, a power box 16 is communicated with the round hole 11 is arranged on the side of the valve body 1, the power box 16 and the power box 16 is communicated with the round hole 11 through the round hole 11, and the round hole 16 is arranged on the side of the valve body 1, and the power box 16 is communicated with the round hole 1 through the round hole 16, and the round hole is provided with the power hole 1.
Further, a convex curved surface is disposed on a plane in the concave cavity 11, which is in contact with the stop pin 10. During locking, the limiting pin 10 is pressed at the highest point of the convex curved surface, so that the limiting pin 10 rotates 90 degrees from loose to tight (the effect of gradually pressing and cam curve), and the fixing effect of the butterfly plate 3 and the pressing ring 6 is enhanced.
Specifically, the valve body 1, the valve rod 2, the butterfly plate 3, the worm gear case 16, etc. in this embodiment all adopt the known schemes in the prior art, and those skilled in the art will understand the schemes, and will not be described herein.
The working principle of the utility model is as follows:
When the sealing ring 5 needs to be replaced, the access cover 15 is taken down, the arm is stretched into the access opening 14 to rotate the rotating pins 8 by 90 degrees one by one, the limiting pins 10 are aligned with the rectangular holes 13, the rotating pins 8 are taken out, the pressing rings 6 are taken down, the sealing ring 5 is pried open and replaced, then the pressing rings 6 are installed, the rotating pins 8 are installed one by one, the rotating pins 8 are rotated by 90 degrees, the pressing rings 6 and the sealing ring 5 are locked in place, and then the sealing piece and the access cover 15 are installed, so that the replacement process of the sealing ring 5 is completed.
The utility model has the advantages that:
1. The valve body 1 is additionally provided with the access hole 14 with the access cover 15, the damaged butterfly valve sealing ring 5 can be directly replaced from a pipe network, the damaged sealing ring 5 can be taken out and replaced by disassembling the access cover 15 during overhaul, the whole valve is not required to be removed, and the maintenance time of the valve is reduced.
2. The clamp plate on the sealing ring 5 is fastened with the butterfly plate 3 through the rotating pin 8, and the rotating pin 8 can be screwed or loosened by rotating 90 degrees, so that the pressing ring 6 and the sealing ring 5 can be quickly installed or detached, the assembly efficiency is improved, and the replacement process of the sealing ring 5 is simplified.
Claims (2)
1. The utility model provides a butterfly valve of quick replacement butterfly plate sealing washer, includes the valve body, radially wear to be equipped with the valve rod in the valve body, fixedly on the valve rod be provided with the butterfly plate, the butterfly plate sets up in the valve body, its characterized in that: the right end face of the butterfly plate is provided with an annular step, the annular step is provided with a sealing ring, the right side of the sealing ring is provided with a pressing ring, at least four through holes are uniformly distributed in the end face of the pressing ring along the circumferential direction, each through hole is provided with a rotating pin, the outer end of each rotating pin is connected with a clamping block, the clamping blocks are clamped on the right side of the pressing ring, the inner end of each rotating pin is radially provided with a limiting pin in a penetrating mode, the right end face of the butterfly plate is provided with a concave cavity with the number and the positions corresponding to the through holes, the outer side wall of each concave cavity is provided with a round hole matched with the rotating pin and two rectangular holes matched with the limiting pins, the two rectangular holes are respectively connected to the two sides of the round hole, the concave cavity is communicated with the through holes, the inner end of each rotating pin penetrates through the round hole, the limiting pins are clamped in the concave cavity, an overhaul hole is formed in a valve body on one side of the sealing ring, an overhaul cover is arranged on the overhaul hole through a sealing piece, and a worm gear box is arranged on the upper side of the valve body.
2. The butterfly valve of claim 1, wherein the butterfly plate seal ring is quickly replaceable, and further comprising: and a convex curved surface is arranged on a plane in the concave cavity, which is in fit contact with the limiting pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323408448.0U CN221300138U (en) | 2023-12-14 | 2023-12-14 | Butterfly valve capable of quickly replacing butterfly plate sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323408448.0U CN221300138U (en) | 2023-12-14 | 2023-12-14 | Butterfly valve capable of quickly replacing butterfly plate sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221300138U true CN221300138U (en) | 2024-07-09 |
Family
ID=91735211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323408448.0U Active CN221300138U (en) | 2023-12-14 | 2023-12-14 | Butterfly valve capable of quickly replacing butterfly plate sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221300138U (en) |
-
2023
- 2023-12-14 CN CN202323408448.0U patent/CN221300138U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |