Bidirectional sealing butterfly valve
By using a combination of rubber ring and outer sealing ring in the butterfly valve, combined with the design of buffer plate, corrugated pipe, buffer spring and flow limiting plate, the problems of vulnerability of butterfly valve sealing ring and water pressure to damage the valve core are solved, achieving better sealing and flow protection.
Patent Information
- Application Number
- CN202422348539.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-26
AI Technical Summary
During use, the sealing ring of the existing butterfly valve is easily damaged by pressure, aging and damaged, resulting in leakage problems. The large internal water pressure causes damage to the valve core, which requires overall replacement, lack of protective structure, resulting in waste of resources.
A two-way sealed butterfly valve is designed to fix the rubber ring to the inner ring of the flange and a sealing ring is set on the outside of the rubber ring to enhance the sealing effect; at the same time, a buffer plate, corrugated pipe, buffer spring and flow-limiting plate are used to achieve liquid circulation and flow-limiting through the cooperation of the conical pipe and the flow-limiting hole, and the use of the sealed butterfly valve is protected.
It effectively enhances the sealing of the butterfly valve, prevents leakage, reduces damage to the valve core by water pressure, extends service life, avoids waste of resources, and achieves smooth flow and current limit protection of liquids.
Smart Images
Figure CN223035695U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealed butterfly valves, in particular to a two-way sealed butterfly valve. Background Technique
[0002] The butterfly valve, also called a flap valve, is a simple-structured regulating valve. The butterfly valve that can be used for the on-off control of the medium in a low-pressure pipeline refers to a valve in which the closing member (valve flap or butterfly plate) is a disc and rotates around the valve shaft to achieve opening and closing.
[0003] In the prior art, the ends of the butterfly valve are sealed by sealing rings during use. However, the sealing ring structure will have problems such as being damaged by pressure and aging and breakage, resulting in leakage and other problems, lacking the sealing performance of the butterfly valve during use. At the same time, there are many problems with the use of traditional sealed butterfly valves, such as large internal water pressure, damage to the valve core, and the need to replace the whole, lacking a protection structure, resulting in a relatively wasteful use of resources. Content of the Utility Model
[0004] The purpose of the utility model is to provide a two-way sealed butterfly valve. The sealed butterfly valve is connected to the pipeline. During the connection process, a rubber ring needs to be inserted into the interior of the pipeline to play a sealing and abutting role. Subsequently, a sealing ring is sleeved outside the rubber ring to enhance the sealing effect during the connection with the pipeline.
[0005] To achieve the above purpose, a two-way sealed butterfly valve is provided, including: a sealed butterfly valve, both ends of the sealed butterfly valve are fixedly connected with flange plates, several bolts penetrate through the outer sides of the flange plates, a rubber ring is fixedly connected to the inner circle of the flange plates, a limiting block is fixedly connected to one side of the middle part inside the sealed butterfly valve, a flow limiting plate is arranged outside the limiting block, a limiting groove is opened on the outer side of the flow limiting plate, the limiting groove and the limiting block are in clamping fit, a flow limiting hole is opened inside the flow limiting plate, a circulation hole is opened on the outer side of the middle part of the flow limiting plate, and a conical tube is sleeved inside the flow limiting hole;
[0006] A valve rod is rotatably connected to the middle part inside the sealed butterfly valve, a valve core is fixedly connected to the outer side of the valve rod, and an adjusting block is arranged in the middle of the top of the sealed butterfly valve.
[0007] According to the described two-way sealed butterfly valve, one end of the conical tube is fixedly connected with a buffer plate, and several corrugated tubes are fixedly connected between the buffer plate and the flow limiting plate.
[0008] According to the described two-way sealed butterfly valve, several bolts penetrate through the outer sides of the flange plates for installation.
[0009] According to the described two-way sealed butterfly valve, a drain hole is opened on the outer circle of the middle part of the buffer plate, and several openings are opened on the outer side of the buffer plate.
[0010] According to the bidirectional sealing butterfly valve, a tapered hole is provided inside the tapered tube, and the tapered hole facilitates the circulation of liquid.
[0011] According to the bidirectional sealing butterfly valve, a buffer spring is sleeved inside the bellows, and both ends of the buffer spring are fixedly connected to the limiting plate and the buffer plate respectively, so that the buffer spring can buffer the pressure.
[0012] According to the bidirectional sealing butterfly valve, the number of the bellows is four, and the four bellows can play a sealing and protective role on the buffer spring.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model is provided with a sealing butterfly valve and a rubber ring. The sealing butterfly valve is connected to the pipeline. During the connection process, the rubber ring needs to be inserted into the inside of the pipeline to play a sealing role. Then, a sealing ring is sleeved on the outside of the rubber ring to enhance the sealing effect during the connection process with the pipeline.
[0015] 2. The utility model is provided with a buffer plate, a bellows, a buffer spring and a flow limiting plate, which have a circulation and conveying effect on the liquid through the sealed butterfly valve. The liquid in the circulation process will flow through the internal tapered tube of the buffer plate and be discharged through the flow limiting hole, which can complete the circulation of the liquid. The water pressure will impact the buffer plate. At this time, the corrugations of the bellows are folded and the buffer spring is pressed back. At this time, the tapered tube is inserted into the inside of the tapered hole to achieve a resistance effect, which can cooperate with the flow limiting plate to complete the flow limiting effect and protect the use of the sealed butterfly valve.
[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;
[0018] Figure 1 This is a cross-sectional front view of a bidirectional sealing butterfly valve of the utility model;
[0019] Figure 2 This is a cross-sectional side view of a bidirectional sealing butterfly valve of the utility model;
[0020] Figure 3 For this utility model Figure 2 A in the enlarged view;
[0021] Figure 4 It is an enlarged view of the buffer plate structure of a bidirectional sealing butterfly valve of the utility model.
[0022] In the figure: 1. Sealed butterfly valve; 2. Valve stem; 3. Valve core; 4. Adjusting block; 5. Bolt; 6. Rubber ring; 7. Flow-limiting plate; 8. Limiting block; 9. Limiting groove; 10. Buffer spring; 11. Buffer plate; 12. Bellows; 13. Drain hole; 14. Conical pipe; 15. Opening; 16. Conical hole; 17. Flange. Specific embodiments
[0023] The technical solutions 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] Please refer to Figures 1-4The utility model provides a technical solution: a two-way sealing butterfly valve, which includes: a sealing butterfly valve 1, both ends of the sealing butterfly valve 1 are fixedly connected with flanges 17, the outer side of the flange 17 is penetrated with a plurality of bolts 5, the sealing butterfly valve 1 and the pipeline are strengthened and firmly strengthened by the bolts 5, and the sealing butterfly valve 1 has a circulation and conveying effect on the liquid, the inner ring of the flange 17 is fixedly connected with a rubber ring 6, and the sealing butterfly valve 1 is connected to the pipeline, and the rubber ring 6 needs to be inserted into the inside of the pipeline during the connection process to play a sealing and resisting role, and a sealing ring is sleeved on the outside of the rubber ring 6, which can enhance the sealing effect during the connection process with the pipeline, and one side of the inner middle of the sealing butterfly valve 1 is fixedly connected with a limited position Block 8, a limiting plate 7 is arranged on the outer side of the limiting block 8, a limiting groove 9 is provided on the outer side of the limiting plate 7, the limiting groove 9 and the limiting block 8 are snap-fitted, a limiting hole is provided inside the limiting plate 7, a flow hole is provided on the outer side of the middle part of the limiting plate 7, a tapered tube 14 is sleeved inside the flow-limiting hole, a buffer plate 11 is fixedly connected to one end of the tapered tube 14, and the liquid flows through the internal tapered tube 14 of the buffer plate 11 and is discharged through the limiting hole, so as to complete the circulation of the liquid, a plurality of bellows 12 are fixedly connected between the buffer plate 11 and the limiting plate 7, when the liquid circulation pressure is large, the water pressure will impact the buffer plate 11, at this time the bellows 12 are folded, and a tapered hole 16 is provided inside the tapered tube 14;
[0026] A valve stem 2 is rotatably connected to the middle of the interior of the sealed butterfly valve 1, and a valve core 3 is fixedly connected to the outside of the valve stem 2. The valve core 3 can control the opening and closing of the sealed butterfly valve 1. An adjusting block 4 is arranged in the middle of the top of the sealed butterfly valve 1, and a plurality of bolts 5 are penetrated through the outside of the flange 17. A drainage hole 13 is provided in the middle outer ring of the buffer plate 11, and a plurality of openings 15 are provided on the outside of the buffer plate 11. A buffer spring 10 is sleeved inside the bellows 12, and the buffer spring 10 is back-pressed. At this time, the tapered tube 14 is inserted into the inside of the tapered hole 16 to achieve a resistance effect, which can cooperate with the flow limiting plate 7 to complete the flow limiting effect and protect the use of the sealed butterfly valve 1. The two ends of the buffer spring 10 are respectively fixedly connected to the flow limiting plate 7 and the buffer plate 11, and the number of the bellows 12 is four.
[0027] Working principle: When in use, first connect the sealing butterfly valve 1 to the pipeline, and during the connection process, the rubber ring 6 needs to be inserted into the inside of the pipeline to play a sealing resistance role, and then a sealing ring is sleeved on the outside of the rubber ring 6 to enhance the sealing effect during the connection with the pipeline, and then the sealing butterfly valve 1 and the pipeline are strengthened and firmly strengthened by the bolts 5, and the sealing butterfly valve 1 has a circulation and transportation effect on the liquid, and the liquid in the circulation process will flow through the internal tapered tube 14 of the buffer plate 11 and be discharged through the flow limiting hole, which can complete the circulation of the liquid, and the valve core 3 can control the opening and closing of the sealing butterfly valve 1. When the liquid circulation pressure is large, the water pressure will impact the buffer plate 11. At this time, the corrugation of the bellows 12 is folded, and the buffer spring 10 is back-pressed. At this time, the tapered tube 14 is inserted into the inside of the tapered hole 16 to achieve a resistance effect, which can cooperate with the flow limiting plate 7 to complete the flow limiting effect and protect the use of the sealing butterfly valve 1.
[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A two-way sealing butterfly valve, comprising: A sealing butterfly valve (1), characterized in that both ends of the sealing butterfly valve (1) are fixedly connected with flanges (17), the outer side of the flange (17) is penetrated by a plurality of bolts (5), the inner ring of the flange (17) is fixedly connected with a rubber ring (6), a limiting block (8) is fixedly connected to one side of the inner middle of the sealing butterfly valve (1), a limiting plate (7) is arranged on the outer side of the limiting block (8), a limiting groove (9) is provided on the outer side of the limiting plate (7), the limiting groove (9) and the limiting block (8) are snap-fitted, a limiting flow hole is provided inside the limiting plate (7), a flow hole is provided on the outer side of the middle of the limiting plate (7), and a conical tube (14) is sleeved inside the limiting hole; A valve stem (2) is rotatably connected to the middle of the interior of the sealing butterfly valve (1), a valve core (3) is fixedly connected to the outside of the valve stem (2), and an adjustment block (4) is provided at the middle of the top end of the sealing butterfly valve (1).
2. A two-way sealing butterfly valve according to claim 1, characterized in that: A buffer plate (11) is fixedly connected to one end of the conical tube (14), and a plurality of bellows (12) are fixedly connected between the buffer plate (11) and the flow limiting plate (7).
3. A bidirectional sealing butterfly valve according to claim 1, characterized in that: A plurality of bolts (5) penetrate the outer side of the flange (17).
4. A bidirectional sealing butterfly valve according to claim 2, characterized in that: A drainage hole (13) is provided on the middle outer ring of the buffer plate (11), and a plurality of openings (15) are provided on the outer side of the buffer plate (11).
5. A bidirectional sealing butterfly valve according to claim 1, characterized in that: A tapered hole (16) is provided inside the tapered tube (14).
6. A bidirectional sealing butterfly valve as claimed in claim 2, characterized in that: A buffer spring (10) is sleeved inside the bellows (12), and two ends of the buffer spring (10) are fixedly connected to the current limiting plate (7) and the buffer plate (11) respectively.
7. A bidirectional sealing butterfly valve according to claim 2, characterized in that: The number of the bellows (12) is four.
Citation Information
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