CN222209007U - A pressure relief butterfly valve - Google Patents
A pressure relief butterfly valve Download PDFInfo
- Publication number
- CN222209007U CN222209007U CN202420425367.7U CN202420425367U CN222209007U CN 222209007 U CN222209007 U CN 222209007U CN 202420425367 U CN202420425367 U CN 202420425367U CN 222209007 U CN222209007 U CN 222209007U
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- Prior art keywords
- valve
- butterfly
- valve seat
- butterfly valve
- pressure relief
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
本实用新型的一种泄压型蝶阀包括阀座、顶部支架、底部支架，阀座为圆环形，阀座的顶部中心设置有顶部支架，阀座的底部设置有底部支架，顶部支架、阀座、底部支架的内部设置有阀轴，阀轴的顶部与旋转手柄相连接，阀座的内径表面设置有密封圈，密封圈的内径表面设置有蝶板，蝶板位于阀轴的表面；本实用新型在现有技术的蝶阀的基础上，在蝶阀处设置有U形管，当需要将蝶阀打开时出现蝶阀两侧的水压差值较大时，首先旋转旋转手柄，将密封件与第二通孔之间的密封性稍微打破，然后将会出现高压处的水通过U形管流向低压处，从而使蝶阀两侧的水压处于平衡，然后再次旋转旋转手柄将蝶板完全打开，本实用新型通过U形管来实现泄压，有一定的实用性。
The utility model discloses a pressure relief butterfly valve comprising a valve seat, a top bracket and a bottom bracket. The valve seat is annular, a top bracket is arranged at the top center of the valve seat, a bottom bracket is arranged at the bottom of the valve seat, a valve shaft is arranged inside the top bracket, the valve seat and the bottom bracket, the top of the valve shaft is connected with a rotating handle, a sealing ring is arranged on the inner diameter surface of the valve seat, a butterfly plate is arranged on the inner diameter surface of the sealing ring, and the butterfly plate is located on the surface of the valve shaft; on the basis of the butterfly valve in the prior art, the utility model discloses a U-shaped tube at the butterfly valve, when the water pressure difference on both sides of the butterfly valve is large when the butterfly valve needs to be opened, the rotating handle is first rotated to slightly break the sealing between the sealing element and the second through hole, and then the water at the high pressure place flows to the low pressure place through the U-shaped tube, so that the water pressure on both sides of the butterfly valve is balanced, and then the rotating handle is rotated again to fully open the butterfly plate. The utility model realizes pressure relief through the U-shaped tube, which has certain practicality.
Description
Technical Field
The utility model relates to the technical field of butterfly valves, in particular to a pressure relief type butterfly valve.
Background
The butterfly valve is also called as a flap valve, and is a regulating valve with simple structure, and the butterfly valve capable of being used for the on-off control of low-pressure pipeline medium is a valve in which a closing member (a valve clack or a butterfly plate) is a disc and rotates around a valve shaft to achieve opening and closing, and can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe is mainly used for cutting and throttling. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly valve opening and closing piece in the valve body, so that the purpose of opening and closing or adjusting is achieved.
However, the structure of the butterfly valve in the prior art is easier to close the valve, but when the valve needs to be opened, if the front-back pressure difference of the valve is large, the condition of complicated opening and even the condition of non-opening easily occurs, and the butterfly valve has certain limitation.
Disclosure of utility model
The utility model aims to provide a pressure relief type butterfly valve so as to solve the problems in the prior art.
In order to achieve the above purpose, the pressure relief butterfly valve comprises a valve seat, a top support and a bottom support, wherein the valve seat is in a circular ring shape, the top center of the valve seat is provided with the top support, the bottom of the valve seat is provided with the bottom support, the inside of the top support, the valve seat and the bottom support is provided with a valve shaft, the top of the valve shaft is connected with a rotary handle, the inner diameter surface of the valve seat is provided with a sealing ring, the inner diameter surface of the sealing ring is provided with a butterfly plate, the butterfly plate is positioned on the surface of the valve shaft, the center of the outer surface of the valve seat is provided with a U-shaped pipe, two ends of the U-shaped pipe are respectively positioned on two sides of the outer surface of the valve seat, a first through hole is formed in the joint of the valve seat and two ports of the U-shaped pipe, second through holes are formed in positions corresponding to the sealing ring and the first through holes, the front faces of the two second through holes are provided with sealing pieces, the back center of the sealing pieces is provided with a connecting rod, and the other end of the connecting rod is connected with the butterfly plate.
Preferably, the connecting rod is made of rubber.
Preferably, the diameter of the seal is greater than the diameter of the second through hole.
Compared with the prior art, the utility model has the beneficial effects that:
According to the pressure relief type butterfly valve, the U-shaped pipe is arranged at the butterfly valve on the basis of the butterfly valve in the prior art, when the water pressure difference between two sides of the butterfly valve is large when the butterfly valve is required to be opened, the rotating handle is rotated at first, the sealing performance between the sealing element and the second through hole is slightly broken, then water at a high pressure position flows to a low pressure position through the U-shaped pipe, so that the water pressure at two sides of the butterfly valve is balanced, and then the rotating handle can be rotated again to fully open the butterfly plate.
When the butterfly plate is closed, the vertical surface of the butterfly plate is 90 degrees, and the sealing piece seals the second through hole to prevent water from flowing from the U-shaped pipe to the other side of the butterfly plate.
According to the pressure relief butterfly valve, when the butterfly plate is rotated through the rotating handle, the connecting rod connected with the sealing element and the butterfly plate is elastic, so that the position of the sealing element is better changed, and the pressure relief butterfly valve has certain practicability.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
The valve seat, the top support, the rotary handle, the bottom support, the butterfly plate, the sealing ring, the sealing piece, the connecting rod and the U-shaped pipe are respectively arranged at the bottom support, the sealing piece and the U-shaped pipe in the figure, wherein the sealing piece is provided with the sealing seat, the top support, the rotary handle, the sealing ring and the U-shaped pipe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, the utility model provides a pressure relief butterfly valve, which comprises a valve seat 1, a top support 2 and a bottom support 4, wherein the valve seat 1 is in a circular shape, the top support 2 is arranged at the center of the top of the valve seat 1, the bottom of the valve seat 1 is provided with the bottom support 4, a valve shaft is arranged in the top support 2, the valve seat 1 and the bottom support 4, the top of the valve shaft is connected with a rotary handle 3, the rotary handle 3 is used for rotating the valve shaft, the utility model is not described in detail herein, the inner diameter surface of the valve seat 1 is provided with a sealing ring 6, the inner diameter surface of the sealing ring 6 is provided with a butterfly plate 5, the butterfly plate 5 is positioned on the surface of the valve shaft, the center of the outer surface of the valve seat 1 is provided with two ends of a U-shaped pipe 9,U at two sides of the outer surface of the valve seat 1 respectively, a first through hole is formed at the joint of the two ports of the valve seat 1 and the U-shaped pipe 9, a second through hole is formed at the corresponding position of the sealing ring 6 and the first through hole, the front of the two second through holes are provided with a sealing piece 7, the center of the sealing piece 7 is provided with a connecting rod 8, and the other end of the connecting rod 8 is connected with the butterfly plate 5.
Further, the connecting rod 8 is made of rubber, and when the butterfly plate 5 is rotated by the rotating handle 3, the sealing element 7 is connected with the butterfly plate 5, and the connecting rod 8 is elastic, so that the position of the sealing element is better changed, and the butterfly plate has certain practicability.
Further, the diameter of the sealing member 7 is larger than that of the second through hole, and since the diameter of the sealing member 7 is larger than that of the second through hole, the second through hole can be sealed by the sealing member 7, preventing water from flowing from the U-shaped pipe 9 to the other side of the butterfly plate 5 when the butterfly plate 5 is closed.
The pressure relief type butterfly valve has the working principle that the U-shaped pipe 9 is arranged at the butterfly valve on the basis of the butterfly valve in the prior art, when the water pressure difference between two sides of the butterfly valve is large when the butterfly valve needs to be opened, the rotary handle 3 is rotated at first, the sealing performance between the sealing element 7 and the second through hole is slightly broken, then water at a high pressure part flows to a low pressure part through the U-shaped pipe 9, so that the water pressure at two sides of the butterfly valve is balanced, and then the butterfly plate 5 can be completely opened by rotating the rotary handle 3 again.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (3)
1. The pressure relief butterfly valve comprises a valve seat (1), a top support (2) and a bottom support (4), and is characterized in that the valve seat (1) is in a circular ring shape, the top center of the valve seat (1) is provided with the top support (2), the bottom of the valve seat (1) is provided with the bottom support (4), the top support (2), the valve seat (1) and the bottom support (4) are internally provided with a valve shaft, the top of the valve shaft is connected with a rotating handle (3), the inner diameter surface of the valve seat (1) is provided with a sealing ring (6), the inner diameter surface of the sealing ring (6) is provided with a butterfly plate (5), the butterfly plate (5) is located on the surface of the valve shaft, the center of the outer surface of the valve seat (1) is provided with a U-shaped pipe (9), two ends of the U-shaped pipe (9) are respectively located at two sides of the outer surface of the valve seat (1), a first through hole is formed in a joint of the valve seat (1) and the U-shaped pipe (9), a second through hole is formed in a corresponding position of the sealing ring (6) and the first through hole, two second through holes are formed in the corresponding positions, the two second through holes are provided with a butterfly plate (7), the butterfly plate (7) and the other end (8) is connected with the connecting rod (8).
2. The pressure relief butterfly valve of claim 1, wherein the connecting rod (8) is rubber.
3. A pressure relief butterfly valve as claimed in claim 1, characterized in that the diameter of the seal (7) is larger than the diameter of the second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420425367.7U CN222209007U (en) | 2024-03-06 | 2024-03-06 | A pressure relief butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420425367.7U CN222209007U (en) | 2024-03-06 | 2024-03-06 | A pressure relief butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222209007U true CN222209007U (en) | 2024-12-20 |
Family
ID=93858347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420425367.7U Active CN222209007U (en) | 2024-03-06 | 2024-03-06 | A pressure relief butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222209007U (en) |
-
2024
- 2024-03-06 CN CN202420425367.7U patent/CN222209007U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |