Improved butterfly valve

Abstract

The utility model provides an improved butterfly valve which comprises a valve body, the top of the valve body is fixedly connected with a fixing column, the top of the fixing column is fixedly connected with a U-shaped block, the interior of the U-shaped block is connected with a valve opening mechanism in a sliding mode, the valve opening mechanism comprises a transmission column, the exterior of the transmission column is connected with the interior of the U-shaped block in a sliding mode, and the transmission column is connected with the U-shaped block in a sliding mode. Two limiting blocks are fixedly connected to the interior of the U-shaped block, a connecting column is slidably connected to the sides, close to each other, of the limiting blocks, namely the sides, away from the exterior, of the limiting blocks, and a rotating column is fixedly connected to the interior of the connecting column. According to the butterfly valve, the eccentric circle rotates by holding the rotating block to rotate, the U-shaped block loosens the upper limiting block and the lower limiting block in the U-shaped block to loosen the connecting column, then the stress column is held to rotate, the connecting column drives the rotating column to rotate, and therefore the butterfly plate rotates, accurate control over the rotating angle when the butterfly valve is opened and rotates is achieved, and one-hand operation can be achieved; and the convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially relates to improved butterfly valve equipment. BACKGROUND

[0002] The butterfly valve is a common valve for controlling fluid flow, belonging to the category of regulating valves. Its main structural feature is to control the flow of fluid through a butterfly-shaped valve plate (usually disc-shaped), and the valve plate is opened and closed by rotating the pipeline. The butterfly valve has the advantages of simple structure, light weight, rapid opening and closing, and is widely used in water treatment, petroleum chemical industry, power, heating, gas transportation and other industries.

[0003] Chinese patent CN208503504U discloses a butterfly valve, the utility model relates to valve technical field, especially a kind of butterfly valve. The butterfly valve includes valve body, butterfly plate and valve shaft, the butterfly plate is located in the valve body, the valve shaft is connected with the butterfly plate, the valve shaft is rotated to make the butterfly plate movement and control the opening / closing of the valve body, the butterfly valve includes sealing element, and power device to make the sealing element movement seal between the butterfly plate and the valve body or remove the seal between the butterfly plate and the valve body. By setting power device, in the opening process of the butterfly valve, it is first removed seal, then drives the butterfly plate movement, substantially reduces the opening force of the butterfly valve.

[0004] But the technical scheme, need to operate personnel to operate with both hands, it is inconvenient for operator to open and close valve, and also can not accurately control flow. SUMMARY

[0005] The utility model aims at the deficiency of prior art, provide improved butterfly valve.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] Improved butterfly valve, including valve body, the top of the valve body is fixedly connected with fixed column, the top of the fixed column is fixedly connected with U-shaped block, the inside of the U-shaped block is slidably connected with valve opening mechanism, the inside of the valve body is fixedly connected with sealing ring, the outside of the sealing ring is rotatably connected with sealing mechanism;

[0008] The valve opening mechanism includes transmission column, the transmission column is slidably connected in the inside of the U-shaped block, the inside of the U-shaped block is fixedly connected with two limit blocks, the side close to the side away from the outside of the limit block is slidably connected with connecting column, the inside of the connecting column is fixedly connected with rotating column, the outside of the connecting column is fixedly connected with stress column, the outside of the transmission column is rotatably connected with rotation assembly that provides valve opening force.

[0009] Further description of the above technical scheme:

[0010] The rotating assembly comprises two eccentric circles, the outer part of the eccentric circles is rotatably connected to the outer part of the transmission column, and the outer part of the eccentric circles is fixedly connected with a rotating block.

[0011] As a further description of the above technical solution:

[0012] The sealing mechanism comprises a disc plate, the outer part of the disc plate is rotatably connected to the inner part of the valve body, and the outer part of the disc plate is fixedly connected with a rubber ring.

[0013] As a further description of the above technical solution:

[0014] The outer part of the rubber ring is slidably connected with a sealing ring, and the front and rear sides of the sealing ring are fixedly connected with sealing groove rings.

[0015] As a further description of the above technical solution:

[0016] The inner part of the fixed column is fixedly connected with a plurality of sealing blocks, the bottom of the sealing block is fixedly connected with a sponge block, and the outer part of the sponge block is fixedly connected to the inner part of the valve body.

[0017] As a further description of the above technical solution:

[0018] The inner part of the sealing groove ring is slidably connected to the outer part of the disc plate, and the outer part of the disc plate is rotatably connected to the inner part of the sealing groove ring.

[0019] As a further description of the above technical solution:

[0020] The inner part of the disc plate is fixedly connected to the outer part of the rotating column, and the outer part of the rotating column is rotatably connected to the inner part of the valve body.

[0021] As a further description of the above technical solution:

[0022] The outer part of the transmission column is fixedly connected to the two limiting blocks, and the proximal side, i.e. the side far from the outer part, of the two limiting blocks is slidably connected to the outer part of the connecting column.

[0023] The beneficial effects of the utility model lie in:

[0024] (1) In the utility model, the eccentric circle is rotated by rotating the rotating block, the U-shaped block loosens the two limiting blocks in the inner part to loosen the connecting column, then the connecting column drives the rotating column to rotate by rotating the stress column, so that the disc plate rotates, the precise control of the rotating angle during the opening and rotating of the butterfly valve is realized, one-hand operation is achieved, and the convenience is improved.

[0025] (2) The utility model discloses a rubber ring is sleeved on the outside of the disc plate, and the recess of the sealing groove ring is matched, so that the sealing is more airtight, and there is a sealing groove ring on the front and back of the sealing groove ring, and the sealing is further strengthened, a plurality of sealing blocks are arranged in the fixed column, and sponge blocks are arranged at the bottom, so that the sealing purpose is achieved, and the sealing of the butterfly valve is provided by the above-mentioned multiple sealing cooperation.

[0026] Legend:

[0027] 1, valve body;2, fixed column;3, U-shaped block;4, limiting block;5, connecting column;6, transmission column;7, eccentric circle;8, rotating block;9, stress column;10, sealing block;11, sponge block;12, sealing groove ring;13, sealing ring;14, rotating column;15, disc plate;16, rubber ring

[0028] In conclusion, the utility model has the advantages of precise control of the rotation angle when the butterfly valve is opened, one-hand operation, improved convenience and high sealing performance. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the perspective view of the improved butterfly valve provided by the utility model;

[0030] Figure 2 It is the structure schematic view of the fixed column of the improved butterfly valve provided by the utility model;

[0031] Figure 3 It is the structure schematic view of the rubber ring of the improved butterfly valve provided by the utility model;

[0032] Figure 4 It is the structure schematic view of the sealing groove ring of the improved butterfly valve provided by the utility model. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0034] In the description of the utility model, it is understood that the directions or positional relations indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" are based on the directions or positional relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model to having a particular orientation, being constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0035] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited. Embodiment

[0036] Reference Figure 1 , Figure 2 The utility model provides an embodiment: improved butterfly valve, including valve body 1, the whole valve body 1 presents as hollow shell with specific shape and structure, its shape is cylindrical, material is solid and corrosion -resistant metal material, such as stainless steel material, the excellent pressure capacity and chemical corrosion resistance of valve body 1 can be in various complex fluid working conditions, long -term stably bear the pressure and scouring of fluid in pipeline, ensure the integrity and reliability of butterfly valve overall structure, the top of valve body 1 is fixedly connected with fixed column 2, fixed column 2 presents as slender cylindrical shape as a whole, its material is metal material, such as carbon steel material, has higher strength and stability, fixed column 2 is fixedly connected with a plurality of sealing blocks 10 in the inside, sealing block 10 presents as block structure as a whole, its material is rubber material with good sealing performance and corrosion resistance, such as fluorine rubber material, can effectively adapt to the sealing requirement of a variety of fluid medium, maintains good elasticity and sealing performance in long -term use, the bottom of sealing block 10 is fixedly connected with sponge block 11, sponge block 11 presents as porous sponge structure as a whole, its material is polyurethane sponge material with water absorption and buffering, the outside of sponge block 11 is fixedly connected in the inside of valve body 1, the top of fixed column 2 is fixedly connected with U-shaped block 3, the inside of U-shaped block 3 is slidably connected with valve opening mechanism, and valve opening mechanism includes transmission column 6.

[0037] The transmission column 6 is in the shape of an elongated cylinder, and is made of metal material such as carbon steel. The outer part of the transmission column 6 is fixedly connected to the two limiting blocks 4. The limiting blocks 4 are in the shape of blocks, and are made of metal material such as carbon steel. The proximal side of the two limiting blocks 4, i.e. the side far from the outer part, is slidingly connected to the outer part of the transmission column 6. The inner part of the U-shaped block 3 is fixedly connected to the two limiting blocks 4. The limiting blocks 4 are in the shape of blocks, and are made of metal material such as carbon steel. The proximal side of the limiting blocks 4, i.e. the side far from the outer part, is slidingly connected to the connecting column 5. The connecting column 5 is in the shape of an elongated cylinder, and is made of metal material such as carbon steel. The inner part of the connecting column 5 is fixedly connected to the rotating column 14. The outer part of the connecting column 5 is fixedly connected to the stress column 9. The stress column 9 is in the shape of a block, and is made of metal material such as carbon steel. The outer part of the transmission column 6 is rotatably connected to the rotating assembly for providing valve opening force. The rotating assembly comprises two eccentric circles 7. The eccentric circles 7 are in the shape of eccentric wheels, and are made of metal material such as carbon steel. The outer part of the eccentric circles 7 is rotatably connected to the outer part of the transmission column 6. The outer part of the eccentric circles 7 is fixedly connected to the rotating block 8. The rotating block 8 is in the shape of a block, and is made of metal material such as carbon steel.

[0038] Referring to Figure 3 , Figure 4 The inner part of the valve body 1 is fixedly connected to the sealing ring 13. The sealing ring 13 is in the shape of a ring, and is made of rubber material with good sealing performance and corrosion resistance, such as nitrile rubber. It can effectively adapt to the sealing requirements of various fluid media, and maintain good elasticity and sealing performance during long-term use. The outer part of the sealing ring 13 is rotatably connected to the sealing mechanism. The sealing mechanism comprises a disc plate 15. The disc plate 15 is in the shape of a disc, and is made of metal material such as stainless steel. The inner part of the disc plate 15 is fixedly connected to the outer part of the rotating column 14. The outer part of the rotating column 14 is rotatably connected to the inner part of the valve body 1. The outer part of the disc plate 15 is rotatably connected to the inner part of the valve body 1. The outer part of the disc plate 15 is fixedly connected to the rubber ring 16. The rubber ring 16 is in the shape of a ring, and is made of rubber material with good sealing performance and corrosion resistance, such as fluororubber. The outer part of the rubber ring 16 is slidingly connected to the sealing ring 13. The front and back sides of the sealing ring 13 are fixedly connected to the sealing groove ring 12. The sealing groove ring 12 is in the shape of a ring, and is made of metal material such as carbon steel. The inner part of the sealing groove ring 12 is slidingly connected to the outer part of the disc plate 15. The outer part of the disc plate 15 is rotatably connected to the inner part of the sealing groove ring 12.

[0039] First, hold the rotating block 8 up and down swing, so that the eccentric circle 7 in the U-shaped block 3 slide, so that the transmission column 6 in the U-shaped block 3 inside slide, so that the U-shaped block 3 relax so inside up and down two limit block 4 will be connected with the column 5 loose, then hold the force column 9 rotating, under the force transmission, so that the connecting column 5 drive rotating column 14 rotating, so that the disc plate 15 rotating, single-handedly butterfly valve open, and can accurately control the opening angle.

[0040] The butterfly valve has multiple sealing devices, a rubber ring 16 is sleeved on the outer circle of the disc plate 15, and is matched with the recess in the sealing groove ring 12, when the valve is closed, the disc plate 15 is sleeved with the rubber ring 16 in the sealing groove ring 12, so that the sealing is more tight, and the front and back of the sealing groove ring 12 also has the sealing groove ring 12, further strengthen the sealing performance, meanwhile, the inside of the fixed column 2 is also provided with multiple sealing blocks 10, to block the water flow, and the bottom has the sponge block 11, to achieve the purpose of multi-layer sealing, to seal and prevent water.

[0041] The above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement and improvement etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. Improved butterfly valve comprising a valve body (1), characterized in that: The top of the valve body (1) is fixedly connected with a fixed column (2), the top of the fixed column (2) is fixedly connected with a U-shaped block (3), the inside of the U-shaped block (3) is slidably connected with an opening valve mechanism, the inside of the valve body (1) is fixedly connected with a sealing ring (13), and the outside of the sealing ring (13) is rotatably connected with a sealing mechanism; the opening valve mechanism comprises a transmission column (6), the outside of the transmission column (6) is slidably connected in the inside of the U-shaped block (3), the inside of the U-shaped block (3) is fixedly connected with two limiting blocks (4), the side close to the side away from the outside of the limiting block (4) is slidably connected with a connecting column (5), the inside of the connecting column (5) is fixedly connected with a rotating column (14), the outside of the connecting column (5) is fixedly connected with a stress column (9), and the outside of the transmission column (6) is rotatably connected with a rotating assembly for providing an opening valve force.

2. The improved butterfly valve according to claim 1, wherein: The rotating assembly comprises two eccentric circles (7), the outside of the eccentric circle (7) is rotatably connected with the outside of the transmission column (6), and the outside of the eccentric circle (7) is fixedly connected with a rotating block (8).

3. The improved butterfly valve as claimed in claim 1, wherein: The sealing mechanism comprises a disc plate (15), the outside of the disc plate (15) is rotatably connected in the inside of the valve body (1), and the outside of the disc plate (15) is fixedly connected with a rubber ring (16).

4. The improved butterfly valve as claimed in claim 3, wherein: The outside of the rubber ring (16) is slidably connected with a sealing ring (13), and the front and back sides of the sealing ring (13) are fixedly connected with sealing groove rings (12).

5. The improved butterfly valve as claimed in claim 1, wherein: The inside of the fixed column (2) is fixedly connected with a plurality of sealing blocks (10), the bottom of the sealing block (10) is fixedly connected with a sponge block (11), and the outside of the sponge block (11) is fixedly connected in the inside of the valve body (1).

6. The improved butterfly valve as claimed in claim 4, wherein: The inside of the sealing groove ring (12) is slidably connected with the outside of the disc plate (15), and the outside of the disc plate (15) is rotatably connected in the inside of the sealing groove ring (12).

7. The improved butterfly valve as claimed in claim 3, wherein: The inside of the disc plate (15) is fixedly connected with the outside of the rotating column (14), and the outside of the rotating column (14) is rotatably connected in the inside of the valve body (1).

8. The improved butterfly valve as claimed in claim 1, wherein: The outside of the transmission column (6) is fixedly connected with the two limiting blocks (4), and the side close to the side away from the outside of the two limiting blocks (4) is slidably connected with the outside of the connecting column (5).

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