Multifunctional control butterfly valve

Abstract

The utility model discloses a multifunctional control butterfly valve which comprises an annular valve shell, a rubber sealing ring is fixedly connected to the interior of the annular valve shell, a positioning cylinder is fixedly connected to the top of the annular valve shell, a rotating rod is arranged in the positioning cylinder in a resistance rotating mode, and the bottom end of the rotating rod extends to the inner side of the rubber sealing ring. And a valve plate is fixedly mounted on the outer side of the rotating rod. The rotating rod shell in the positioning cylinder is rotated to drive the valve plate to change the angle of the cross section, the valve plate and the side face of the inner rubber sealing ring are staggered to form a channel, opening and closing are achieved, when positioning is needed by rotating a certain angle, the rotating rod is positioned through the resistance adjusting piece, and when closing is needed, the valve plate is closed. And the rotating rod rotates to drive the valve plate to reset again to be in a section horizontal state, so that the device has the advantages that the opening degree is positioned and reinforced, the valve body is more stable and accurate, the sealing effect is improved, and the leakage risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a multifunctional control butterfly valve. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used for switching control of low-pressure pipeline media. A butterfly valve refers to a valve in which the closing member (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing.

[0003] The current butterfly valve has an internal valve plate that will be tilted after opening. At this time, the internal material flow rate is relatively high, which will easily push the valve block to change its angle. There is a lack of positioning structure for the valve plate. When the current valve plate is in a horizontal state, both sides and the inner ring of the valve body are completely closed to achieve sealing, but the sealing effect is not good, and the sealing ability of the gaps on both sides is poor, which may cause leakage. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the present utility model is to provide a multifunctional control butterfly valve, which can improve the positioning and stabilization effect of the valve plate through a resistance adjustment member and improve the sealing effect through a one-way barrier block, so as to solve the background technical problems.

[0005] To achieve the above purpose, the utility model adopts the following technical solution.

[0006] A multifunctional control butterfly valve comprises an annular valve housing, the interior of which is fixedly connected to a rubber sealing ring, the top of which is fixedly connected to a positioning cylinder, the internal resistance rotation of the positioning cylinder is provided with a rotating rod, the bottom end of the rotating rod extends to the inner side of the rubber sealing ring, a valve plate is fixedly installed on the outer side of the rotating rod, the top and bottom of the valve plate are both penetrated and rotatably connected to the interior of the rubber sealing ring, the outer edge of the valve plate is slidingly sealed with the inner side of the rubber sealing ring, one-way blocking blocks are arranged on both sides of the rubber sealing ring, the two one-way blocking blocks are respectively located on the front and rear sides of the valve plate, and a resistance adjusting member is installed on the outer side of the positioning cylinder.

[0007] As a further description of the above technical solution: the top view of the one-way barrier block is a triangle with rounded edges.

[0008] As a further description of the above technical solution: the top of the rotating rod is fixedly connected with a handle plate, and the bottom of the handle plate is rotatably connected with the positioning tube.

[0009] As a further description of the above technical solution: two groups of ear blocks are fixedly connected to the outer side of the annular valve housing, and threaded holes are provided on the two groups of ear blocks.

[0010] As a further description of the above technical solution: two rows of vertically distributed clamping blocks are fixedly connected to the outer side of the rotating rod, and the outer sides of the clamping blocks are clamped to the inner side of the valve plate.

[0011] As a further description of the above technical solution: the resistance adjustment member includes a limit plate, an L-shaped connecting rod and an adjusting bolt, the inner side of the limit plate is fixedly connected to the outer side of the positioning cylinder, the top end of the L-shaped connecting rod is fixedly connected to the handle plate, the top end of the adjusting bolt is inserted into the top end of the L-shaped connecting rod and threadedly connected thereto, and the top end of the adjusting bolt is in contact with the limit plate.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] This solution achieves a better positioning and stabilizing effect on the valve plate through the resistance adjusting member, and has the advantages of better sealing and blocking effect of the device through the one-way blocking block. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a top view;

[0016] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0017] Figure 4 It is a partial three-dimensional structural schematic diagram of the utility model;

[0018] Figure 5 It is a partial top view structural schematic diagram of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Annular valve housing; 2. Rubber sealing ring; 3. Positioning cylinder; 4. Rotating rod; 41. Handle plate; 42. Block; 5. Valve plate; 6. One-way blocking block; 7. Ear block; 8. Threaded hole; 9. Resistance adjustment piece; 91. Limit plate; 92. L-shaped connecting rod; 93. Adjusting bolt. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figures 1 to 5In the utility model, a multifunctional control butterfly valve comprises an annular valve housing 1, the interior of the annular valve housing 1 is fixedly connected with a rubber sealing ring 2, the top of the annular valve housing 1 is fixedly connected with a positioning cylinder 3, the internal resistance rotation of the positioning cylinder 3 is provided with a rotating rod 4, the bottom end of the rotating rod 4 extends to the inner side of the rubber sealing ring 2, and a valve plate 5 is fixedly installed on the outer side of the rotating rod 4, the top and bottom of the valve plate 5 are both penetrated and rotatably connected to the interior of the rubber sealing ring 2, the outer edge of the valve plate 5 is slidingly sealed with the inner side of the rubber sealing ring 2, and one-way blocking blocks 6 are arranged on both sides of the rubber sealing ring 2, and the two one-way blocking blocks 6 are respectively located on the front and rear sides of the valve plate 5, and a resistance adjusting member 9 is installed on the outer side of the positioning cylinder 3.

[0023] When the valve body is closed, the valve disc 5 is moved back and forth, and the valve body 5 is moved back and forth, so that the valve disc 5 can be opened and closed easily.

[0024] See also Figure 2 , wherein: the top view cross-section of the one-way blocking block 6 is a triangle with rounded edges.

[0025] In the utility model, the one-way barrier block 6 has a triangular shape with smooth edges when viewed from above, so that the one-way barrier block 6 can not only seal the edge of the reverse rotation direction surface of the valve plate 5 to improve the sealing effect, but also reduce the resistance to the fluid.

[0026] See also Figure 1 , wherein: the top of the rotating rod 4 is fixedly connected with a handle plate 41 , and the bottom of the handle plate 41 is rotatably connected with the positioning tube 3 .

[0027] In the utility model, the handle plate 41 is used to conveniently drive the rotating rod 4 to operate, so as to conveniently drive the valve plate 5 to change the angle and realize the opening and closing adjustment.

[0028] See also Figure 1, wherein: two groups of ear blocks 7 are fixedly connected to the outer side of the annular valve housing 1, and threaded holes 8 are opened on the two groups of ear blocks 7.

[0029] In the utility model, the ear block 7 and the threaded hole 8 facilitate convenient and stable connection between the pipeline and the annular valve housing 1 .

[0030] See also Figure 1 and Figure 4 , wherein: two rows of vertically distributed blocks 42 are fixedly connected to the outer side of the rotating rod 4 , and the outer side of the blocks 42 is clamped to the inside of the valve plate 5 .

[0031] In the utility model, the connection between the rotating rod 4 and the valve plate 5 is more stable through the clamping block 42 .

[0032] See also Figure 1 and Figure 5 , wherein: the resistance adjustment member 9 includes a limit plate 91, an L-shaped connecting rod 92 and an adjusting bolt 93, the inner side of the limit plate 91 is fixedly connected to the outer side of the positioning tube 3, the top end of the L-shaped connecting rod 92 is fixedly connected to the handle plate 41, the top end of the adjusting bolt 93 is inserted into the top end of the L-shaped connecting rod 92 and is threadedly connected thereto, and the top end of the adjusting bolt 93 is in contact with and cooperates with the limit plate 91.

[0033] In the utility model, the L-shaped connecting rod 92 is driven to rotate synchronously by rotating the handle plate 41, and the limit plate 91 limits the operation of the L-shaped connecting rod 92 to avoid damaging the rubber sealing ring 2 due to excessive rotation angle, and the L-shaped connecting rod 92 is positioned by rotating the adjusting bolt 93 to contact the limit plate 91, thereby ensuring the stable positioning effect of the rotating rod 4.

[0034] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A multifunctional control butterfly valve, comprising an annular valve housing (1), characterized in that: The inside of the annular valve housing (1) is fixedly connected to a rubber sealing ring (2), the top of the annular valve housing (1) is fixedly connected to a positioning cylinder (3), the internal resistance rotation of the positioning cylinder (3) is provided with a rotating rod (4), the bottom end of the rotating rod (4) extends to the inner side of the rubber sealing ring (2), the outer side of the rotating rod (4) is fixedly installed with a valve plate (5), the top and bottom of the valve plate (5) are penetrated and rotatably connected to the inside of the rubber sealing ring (2), the outer edge of the valve plate (5) is slidingly sealed with the inner side of the rubber sealing ring (2), one-way blocking blocks (6) are arranged on both sides of the rubber sealing ring (2), the two one-way blocking blocks (6) are respectively located on the front and rear sides of the valve plate (5), and a resistance adjusting member (9) is installed on the outer side of the positioning cylinder (3).

2. A multifunctional control butterfly valve according to claim 1, characterized in that: The one-way blocking block (6) has a triangular shape with rounded edges when viewed from above.

3. A multifunctional control butterfly valve according to claim 1, characterized in that: The top of the rotating rod (4) is fixedly connected to a handle plate (41), and the bottom of the handle plate (41) is rotatably connected to the positioning cylinder (3).

4. A multifunctional control butterfly valve according to claim 1, characterized in that: Two groups of ear blocks (7) are fixedly connected to the outer side of the annular valve housing (1), and threaded holes (8) are provided on the two groups of ear blocks (7).

5. The multifunctional control butterfly valve according to claim 1, characterized in that: Two rows of vertically distributed clamping blocks (42) are fixedly connected to the outer side of the rotating rod (4), and the outer sides of the clamping blocks (42) are clamped to the inside of the valve plate (5).

6. The multifunctional control butterfly valve according to claim 3, characterized in that: The resistance adjustment member (9) comprises a limit plate (91), an L-shaped connecting rod (92) and an adjusting bolt (93); the inner side of the limit plate (91) is fixedly connected to the outer side of the positioning tube (3); the top end of the L-shaped connecting rod (92) is fixedly connected to the handle plate (41); the top end of the adjusting bolt (93) is inserted into the top end of the L-shaped connecting rod (92) and is threadedly connected thereto; the top end of the adjusting bolt (93) is in contact with and fits the limit plate (91).

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