Butterfly valve with high-precision flow regulation

Abstract

The utility model discloses a butterfly valve with high-precision flow regulation, and particularly relates to the technical field of butterfly valves, the butterfly valve comprises a valve body, a regulation and control connecting assembly is arranged on the valve body, the regulation and control connecting assembly comprises a plugging piece arranged in the valve body, a vertical rod is fixedly arranged on the plugging piece, a protective sleeve is fixedly arranged on the valve body, and the vertical rod is fixedly arranged on the protective sleeve. And a cushion plate is fixedly arranged at the top end of the protective sleeve. By arranging the regulation and control connecting assembly, the clamping block is separated from the clamping teeth, so that the limiting rod and the hinge rod drive the vertical rod to rotate, the vertical rod drives the plugging piece and the sealing piece to rotate in the valve body when rotating, and the functions of plugging and opening the valve body and the butt joint pipe are achieved; when the limiting rod drives the vertical rod and the plugging piece to rotate, the marking groove can be driven to rotate along the axis point of the plugging piece, so that the adjusting angle of the limiting rod and the plugging piece can be observed through the marking groove and the scale strip, and the adjusting base precision is ensured.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and more specifically, to a butterfly valve for high-precision flow regulation. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve used for the on / off control of low-pressure pipeline media. A butterfly valve is characterized by a disc-shaped closing element (valve disc or butterfly plate) that rotates around the valve shaft to open and close. Butterfly valves can control the flow of various fluids, including air, water, steam, corrosive media, mud, oil, liquid metals, and radioactive media. They play a primary role in shut-off and throttling in pipelines. During operation, butterfly valves require flow regulation and control.

[0003] Among them, the patent with announcement number CN221762628U discloses a butterfly valve flow regulating device, including a valve cavity, a support pipe and a regulating cavity. The valve cavity is connected to the regulating cavity through the support pipe. An air cylinder is rotatably installed in the support pipe. One end of the air cylinder extends into the interior of the valve cavity and is connected to a valve disc. The cylinder cavity of the air cylinder is connected to the disc cavity in the valve disc. A ring is installed on the disc ring edge of the valve disc. The ring cavity of the ring is connected to the disc cavity. The other end of the air cylinder passes through the regulating cavity of the regulating cavity and extends to the top of the regulating cavity. A driven bevel gear is fixedly fitted on the regulating cavity inside the regulating cavity.

[0004] When in use, rotating the adjusting knob closes the valve disc chamber, and rotating the sealing adjusting knob causes the air pressure regulating belt to push down the air pressure plug, causing the ring cavity rubber ring to expand and completely seal the plug. However, the valve closure is cumbersome due to the screw drive, making it difficult to open and close the valve quickly and inconvenient to use. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a butterfly valve with high-precision flow regulation, which aims to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: a butterfly valve with high-precision flow regulation, including a valve body, wherein a regulating connection component is provided on the valve body;

[0007] The control connection assembly includes a sealing component disposed in the valve body, a vertical rod fixedly disposed on the sealing component, a first protective sleeve fixedly disposed on the valve body, and a gasket fixedly disposed at the top of the first protective sleeve.

[0008] The vertical rod passes through the protective sleeve and the pad and extends to the top of the pad. The top of the vertical rod has an adjustable disc that rotates and is mounted on the pad by bolts. The outer side of the adjustable disc has several locking teeth. The top of the vertical rod is engaged with a limit rod. The bottom of the limit rod is hinged with a hinge rod. One end of the hinge rod is fixedly provided with a locking block. One end of the locking block extends to the locking teeth and engages with them. A spring is provided between the hinge rod and the limit rod. One end of the limit rod has an marking groove.

[0009] As can be seen, in the above technical solution, the disengagement of the locking block from the locking teeth causes the limiting rod and the hinge rod to rotate the vertical rod. When the vertical rod rotates, it causes the sealing element and the sealing element to rotate within the valve body, thereby achieving the functions of sealing and opening the valve body and the connecting pipe. Furthermore, when the hinge rod deflects at the bottom of the limiting rod, it can also cause the spring to compress, so that when the vertical rod, the limiting rod, and the hinge rod are adjusted, the hinge rod is reset by the elasticity of the spring itself, causing the locking block to lock onto the locking teeth, ensuring the stability of the sealing element after adjustment.

[0010] Optionally, in one possible implementation, the sealing member has an installation groove on its outer side, a sealing member is provided in the installation groove, the sealing member is sleeved on the outer side of the installation groove, a scale strip is fixedly provided on the outer side of the gasket, a second protective sleeve is fixedly provided on the outer side of the valve body, and a connecting pipe is provided at both ends of the valve body, the connecting pipe is threadedly connected to the valve body, and the end of the connecting pipe extends into the valve body.

[0011] As can be seen, in the above technical solution, when the limiting rod drives the vertical rod and the sealing component to rotate, it can also drive the marking groove to rotate along the axis of the sealing component, so as to facilitate the observation of the adjustment angle of the limiting rod and the sealing component through the marking groove and the scale bar, and ensure the adjustment accuracy.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] By setting up a control connection component, compared with the existing technology, the overall design is simple and the structure is reasonable. Through the corresponding cooperation of each structure, the hinge rod rotates along the axis point at the connection between the hinge rod and the limit rod, which causes the locking block to disengage from the locking teeth, causing the limit rod and the hinge rod to drive the vertical rod to rotate. When the vertical rod rotates, it drives the sealing element and the sealing element to rotate in the valve body, realizing the function of sealing and opening the valve body and the connecting pipe, improving the convenience of closing and opening.

[0014] Furthermore, when the hinge rod deflects at the bottom of the limit rod, it can also drive the spring to compress, so that when the vertical rod, limit rod and hinge rod are adjusted, the hinge rod is reset by the spring itself, so that the locking block is locked on the locking teeth, ensuring the stability of the sealing component after adjustment;

[0015] Furthermore, when the limiting rod drives the vertical rod and the sealing component to rotate, it can also drive the marking groove to rotate along the axis of the sealing component, so that the adjustment angle of the limiting rod and the sealing component can be observed through the marking groove and the scale bar, ensuring the accuracy of the adjustment base. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0017] Figure 1 This is a front view of the overall structure of this utility model.

[0018] Figure 2 This is a perspective view of the valve body, protective sleeve, gasket, and connecting pipe of this utility model.

[0019] Figure 3 This is a perspective view of the control and connection component of this utility model.

[0020] Figure 4 This is an exploded view of the control connection component of this utility model.

[0021] The attached diagram is labeled as follows: 1. Valve body; 2. Sealing element; 3. Vertical rod; 4. First protective sleeve; 5. Gasket; 6. Adjusting disc; 7. Clamping tooth; 8. Limiting rod; 9. Hinge rod; 10. Clamping block; 11. Spring; 12. Mounting groove; 13. Sealing element; 14. Scale strip; 15. Second protective sleeve; 16. Connecting pipe; 17. Marking groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] As attached Figure 1 - Figure 4The butterfly valve shown is a high-precision flow regulating valve. Through the regulating connection assembly set on the valve body 1, the hinge rod 9 rotates along the axis point where the hinge rod 9 connects with the limit rod 8. This causes the locking block to disengage from the locking tooth 7, which in turn causes the limit rod 8 and the hinge rod 9 to drive the vertical rod 3 to rotate. When the vertical rod 3 rotates, it drives the sealing element 2 and the sealing element 13 to rotate inside the valve body 1, realizing the function of sealing and opening the valve body 1 and the connecting pipe 16. When the limit rod 8 drives the vertical rod 3 and the sealing element 2 to rotate, it can also drive the marking groove 17 to rotate along the axis point of the sealing element 2, so that the adjustment angle of the limit rod 8 and the sealing element 2 can be observed through the marking groove 17 and the scale bar 14, ensuring the adjustment accuracy. The specific structural settings of the assembly are as follows.

[0024] The control connection assembly includes a sealing member 2 disposed inside the valve body 1, a vertical rod 3 fixedly disposed on the sealing member 2, a first protective sleeve 4 fixedly disposed on the valve body 1, and a gasket 5 fixedly disposed at the top of the first protective sleeve 4.

[0025] The vertical rod 3 passes through the first protective sleeve 4 and the pad 5 and extends to the top of the pad 5. The top of the vertical rod 3 has an adjusting plate 6 that rotates. The adjusting plate 6 is installed on the pad 5 by bolts. Several locking teeth 7 are provided on the outer side of the adjusting plate 6. The top of the vertical rod 3 is engaged with a limiting rod 8. The bottom of the limiting rod 8 is hinged with a hinge rod 9. A locking block is fixedly provided at one end of the hinge rod 9. One end of the locking block extends to the locking teeth 7 and engages with the locking teeth 7. A spring 11 is provided between the hinge rod 9 and the limiting rod 8. A marking groove 17 is provided at one end of the limiting rod 8.

[0026] The sealing component 2 has an installation groove 12 on its outer side, and a sealing component 13 is provided in the installation groove 12. The sealing component 13 is sleeved on the outer side of the installation groove 12. A scale strip 14 is fixedly provided on the outer side of the gasket 5. A second protective sleeve 15 is fixedly provided on the outer side of the valve body 1. Both ends of the valve body 1 are provided with connecting pipes 16. The connecting pipes 16 are threadedly connected to the valve body 1, and the end of the connecting pipes 16 extends into the valve body 1.

[0027] According to the above structure, when in use, a conduit is installed at the end of the connecting pipe 16. The medium is transported by the valve body 1 and the connecting pipe 16. When the valve body 1 is blocked, the hinge rod 9 is held by hand. The hinge rod 9 rotates along the axis point where the hinge rod 9 and the limit rod 8 are connected. Then, the locking block disengages from the locking tooth 7, causing the limit rod 8 and the hinge rod 9 to drive the vertical rod 3 to rotate. When the vertical rod 3 rotates, it drives the blocking part 2 and the sealing part 13 to rotate inside the valve body 1, so as to realize the functions of blocking and opening the valve body 1 and the connecting pipe 16.

[0028] Furthermore, when the hinge rod 9 deflects at the bottom of the limit rod 8, it can also drive the spring 11 to compress, so that when the vertical rod 3, the limit rod 8 and the hinge rod 9 are adjusted, the hinge rod 9 is reset by the elasticity of the spring 11 itself, so that the locking block is locked on the locking tooth 7, ensuring the stability of the sealing part 2 after adjustment;

[0029] Furthermore, when the limiting rod 8 drives the vertical rod 3 and the sealing component 2 to rotate, it can also drive the marking groove 17 to rotate along the axis of the sealing component 2, so that the adjustment angle of the limiting rod 8 and the sealing component 2 can be observed through the marking groove 17 and the scale bar 14, ensuring the accuracy of the adjustment base.

[0030] Unlike existing technologies, this application discloses a high-precision flow regulating butterfly valve. The hinge rod 9 rotates along the axis connecting the hinge rod 9 and the limiting rod 8, causing the locking block to disengage from the locking teeth 7. This allows the limiting rod 8 and the hinge rod 9 to rotate the vertical rod 3. The rotation of the vertical rod 3 causes the sealing element 2 and the sealing element 13 to rotate within the valve body 1, achieving the functions of sealing and opening the valve body 1 and the connecting pipe 16. When the limiting rod 8 rotates the vertical rod 3 and the sealing element 2, it also causes the marking groove 17 to rotate along the axis of the sealing element 2, allowing the adjustment angle of the limiting rod 8 and the sealing element 2 to be observed through the marking groove 17 and the scale bar 14, ensuring the basic accuracy of the adjustment.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A butterfly valve for high-precision flow regulation, comprising a valve body (1), characterized in that: The valve body (1) is provided with a regulating connection component; The control connection assembly includes a plug (2) disposed in the valve body (1), a vertical rod (3) is fixedly disposed on the plug (2), a first protective sleeve (4) is fixedly disposed on the valve body (1), and a gasket (5) is fixedly disposed at the top of the first protective sleeve (4). The vertical rod (3) passes through the first protective sleeve (4) and the pad (5) and extends to the top of the pad (5). The top of the vertical rod (3) has an adjusting plate (6) that rotates. The adjusting plate (6) is installed on the pad (5) by bolts. Several locking teeth (7) are provided on the outer side of the adjusting plate (6). The top of the vertical rod (3) is engaged with a limiting rod (8).

2. The butterfly valve of claim 1, wherein: The bottom of the limiting rod (8) is hinged to a hinge rod (9), and a locking block is fixedly provided at one end of the hinge rod (9). One end of the locking block extends to the locking tooth (7) and engages with the locking tooth (7).

3. The butterfly valve of claim 2, wherein: A spring (11) is provided between the hinge rod (9) and the limiting rod (8), and an identification groove (17) is provided at one end of the limiting rod (8).

4. The high-precision flow-regulated butterfly valve according to claim 1, characterized in that: The sealing member (2) has an installation groove (12) on its outer side, and a sealing member (13) is provided in the installation groove (12). The sealing member (13) is sleeved on the outside of the installation groove (12).

5. The high-precision flow-regulated butterfly valve according to claim 1, characterized in that: A scale strip (14) is fixedly provided on the outer side of the gasket (5), and a second protective sleeve (15) is fixedly provided on the outer side of the valve body (1).

6. The high-precision flow-regulated butterfly valve according to claim 1, characterized in that: Both ends of the valve body (1) are provided with connecting pipes (16), which are threadedly connected to the valve body (1), and the end of the connecting pipes (16) extends into the valve body (1).

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