Butterfly valve with controllable flow

Abstract

The utility model relates to the technical field of butterfly valves, and discloses a flow-controllable butterfly valve which comprises a valve shell, a rotating box is installed on the top of the valve shell, a control piece is arranged in the rotating box to control a turning plate in the valve shell to rotate, assembling rings are arranged at the two ends of the valve shell, and the assembling rings correspond to the two ends of the valve shell in size. First connecting clamping grooves are formed in the surfaces of the two ends of the valve shell correspondingly, and a sealing leakage-proof ring is installed on the surface of the side, corresponding to the valve shell, of the assembling ring. And large-particle impurities in water flow are blocked by the protective screen to reduce entering of the valve shell, so that the filtering effect of the device is greatly improved, dirt accumulation in the valve shell is reduced, and meanwhile, the situation that rotation of the turning plate in the valve shell is blocked due to long-time use is avoided.

Description

Technical Field

[0001] This utility model relates to the field of butterfly valve technology, and in particular to a butterfly valve with controllable flow rate. Background Technology

[0002] A butterfly valve, also known as a flap valve, is a simple regulating valve that rotates around a valve shaft to open and close. In existing technologies, due to its simple structure, butterfly valves often accumulate scale inside over long-term use, and external pipe impurities can also accumulate inside, obstructing the flap rotation. Therefore, a butterfly valve with controllable flow rate is proposed. Utility Model Content

[0003] The present invention aims to solve the technical problems existing in the prior art and provide a butterfly valve with controllable flow rate.

[0004] To achieve the above objectives, this utility model adopts the following technical solution, including a valve housing. A rotating box is installed on the top of the valve housing. A control component is provided inside the rotating box to control the rotation of the internal flap of the valve housing. Both ends of the valve housing are provided with mounting rings, the size of which corresponds to the size of the two ends of the valve housing. Both ends of the valve housing have an access slot one. A sealing anti-leakage ring is installed on the side surface of the valve housing corresponding to the mounting ring. After the side wall of the valve housing contacts the mounting ring, the sealing anti-leakage ring is completely inserted into the inside of the access slot one. The side surface of the mounting ring away from the valve housing has an access slot two. Two positioning slots are provided on the surface of the mounting ring, with corresponding positions. A mounting frame is installed between the two positioning slots. The external size of the mounting frame is adapted to the internal size of the access slot two. A protective screen is installed inside the mounting frame.

[0005] Furthermore, the protective screen has an overall conical structure with the tip pointing outwards towards the mounting ring, and two symmetrical access plates are fixedly installed on the outside of the mounting frame.

[0006] Furthermore, the bottom surface of the positioning slot is pre-set with a docking through hole for positioning, and the inside of the access card plate is provided with a locking hole with the same inner diameter as the docking through hole.

[0007] Furthermore, after the mounting frame is inserted into the inside of the access card slot two, the access card plate is inserted into the corresponding positioning slot. After the locking hole and the docking through hole are aligned, the bolts are used to lock and install the device.

[0008] Furthermore, mounting holes two and one are respectively provided on the two sides of the valve body and the surface of the mounting ring. The internal diameter of the connecting hole is the same as the internal diameter of mounting hole one. After the mounting frame is installed, the tip of the protective screen is located inside the mounting ring.

[0009] The utility model provides a flow controllable butterfly valve, has the following beneficial effects:

[0010] 1. A flow controllable butterfly valve, by setting up the protective screen that separates big particle impurities in water, after the protective screen is clamped into the inside of access clamping groove no.

[0011] 2. A flow controllable butterfly valve, by adding assembly ring, when adding equipment, first, the external pipeline is assembled together with assembly ring, then two assembly rings are attached on both sides of the connecting place of valve shell, the sealing leakproof ring installed on the side of assembly ring close to valve shell will be clamped into the access clamping groove one on the surface of valve shell, after rotating and locking after the external bolt passes through between corresponding installation insertion hole one and installation insertion hole two, the sealing leakproof ring enters into the inside of access clamping groove one after the close attachment of valve shell and assembly ring extrusion deformation, improve the sealing property after the installation of device connection, when using for a long time, the connecting bolt can be removed to replace the spare part, greatly improve the use experience of device. BRIEF DESCRIPTION OF DRAWINGS

[0012] The structure, proportion, size etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by the person skilled in the art, and do not have the technical substantial meaning for limiting the implementation conditions of the utility model.

[0013] Fig. 1 It is the whole schematic view of device;

[0014] Fig. 2 It is the split schematic view of assembly ring;

[0015] Fig. 3 It is the structural schematic view of clamping frame.

[0016] Legend:

[0017] 1. Valve housing; 2. Rotating box; 3. Mounting ring; 4. Access slot one; 5. Positioning slot; 6. Docking through hole; 7. Access slot two; 8. Sealing anti-leakage ring; 9. Mounting frame; 10. Protective screen; 11. Access plate; 12. Locking hole; 13. Mounting socket one; 14. Mounting socket two. Detailed Implementation

[0018] A type of flow-controllable butterfly valve, such as Figs. 1 to 3 As shown, the valve includes a valve housing 1, a rotating box 2 mounted on the top of the valve housing 1, and a control component inside the rotating box 2 to control the rotation of the internal flap of the valve housing 1. Both ends of the valve housing 1 are provided with mounting rings 3, the size of which corresponds to the size of both ends of the valve housing 1. Both ends of the valve housing 1 have access slots 4. A sealing ring 8 is installed on one side of the valve housing 1 corresponding to the mounting ring 3. After the side wall of the valve housing 1 contacts the mounting ring 3, the sealing ring 8 is completely inserted into the access slot 4. The side of the mounting ring 3 away from the valve housing 1 has an access slot 7. Two corresponding positioning slots 5 are provided on the surface of the mounting ring 3. A mounting frame 9 is installed between the two positioning slots 5. The external size of the mounting frame 9 matches the internal size of the access slot 7. A protective screen 10 is installed inside the mounting frame 9. When water flows through the pipe, the cone-shaped protective screen 10 will disperse the water flow. Large particles of impurities in the water flow are blocked by the protective screen 10 and reduced from entering the valve body 1, which greatly improves the filtration effect of the device. It also reduces the accumulation of dirt inside the valve body 1 and avoids the situation where the flap inside the valve body 1 is obstructed during long-term use.

[0019] The protective screen 10 has a tapered structure with the tip facing outwards from the mounting ring 3. Two symmetrical access plates 11 are fixedly installed on the outside of the mounting frame 9. The bottom surface of the positioning slot 5 has a pre-set docking through hole 6 for positioning. The access plate 11 has a locking hole 12 with the same inner diameter as the docking through hole 6. After the mounting frame 9 is inserted into the access slot 7, the access plate 11 is inserted into the corresponding positioning slot 5. After the locking hole 12 corresponds to the position of the docking through hole 6, it is locked by bolts.

[0020] Two sides of the valve shell 1 are provided with installation insertion hole two 14 and installation insertion hole one 13 respectively, the inner diameter of the butt joint hole 6 is same with the inner diameter of the installation insertion hole one 13, the tip part of the protective screen 10 is located in the inside of the assembly sleeve ring 3 after the installation of the clamping frame 9, the external pipeline is corresponded with the installation insertion hole one 13 of the surface of the assembly sleeve ring 3, then the external bolt is passed through the installation insertion hole one 13 and the installation insertion hole two 14 and is locked, the sealing leakproof ring 8 between the valve shell 1 and the assembly sleeve ring 3 is compressed after the connection of the valve shell 1, the assembly sleeve ring 3 and the external pipeline is completed, so that the connection between the valve shell 1 and the assembly sleeve ring 3 is more closely, and the waterproof ring of the external pipeline is inserted into the access clamping groove two 7 and is extruded to improve the sealing property of the connection.

[0021] The working principle of the utility model is as follows:

[0022] The protective screen 10 is arranged for isolating large-particle impurities in water, the access clamping plate 11 outside the clamping frame 9 is inserted into the corresponding positioning insertion slot 5 after the protective screen 10 is clamped into the inside of the access clamping groove two 7, the position of the clamping frame 9 is limited after the fixed bolt is passed through the locking hole 12 and is rotationally fixed inside the butt joint hole 6, then the sealing ring of the pipeline is clamped into the access clamping groove two 7 and is locked with the assembly sleeve ring 3 and the external pipeline after the external pipeline is butt jointed with the assembly sleeve ring 3, the protective screen 10 in the conical shape will disperse the water flow when the water flow in the pipeline passes, the large-particle impurities in the water flow are blocked and reduced by the protective screen 10 to enter the inside of the valve shell 1, the filtering effect of the device is greatly improved, the dirt accumulation in the inside of the valve shell 1 is reduced, and the situation that the flap in the inside of the valve shell 1 is blocked during long-time use is avoided.

[0023] The assembly sleeve ring 3 is additionally arranged, the external pipeline is assembled with the assembly sleeve ring 3 first when the equipment is additionally arranged, then the two assembly sleeve rings 3 are attached on the two sides of the connection of the valve shell 1, the sealing leakproof ring 8 on the side of the assembly sleeve ring 3 close to the valve shell 1 is clamped into the access clamping groove one 4 on the surface of the valve shell 1, the external bolt is passed through the corresponding installation insertion hole one 13 and the installation insertion hole two 14 and is rotationally locked, the sealing leakproof ring 8 is extruded and deformed after the valve shell 1 is closely attached with the assembly sleeve ring 3 and enters the inside of the access clamping groove one 4, the sealing property of the device after the connection and installation is improved, the connection bolt is released to replace the accessories when used for a long time, and the use experience of the device is greatly improved.

[0024] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A flow-controllable butterfly valve, comprising a valve shell (1), a rotating box (2) is mounted on the top of the valve shell (1), a control member is arranged in the rotating box (2) to control the rotation of a flap in the valve shell (1), and a fitting sleeve ring (3) is arranged at both ends of the valve shell (1), characterized in that: The size of the assembly ring (3) corresponds to the size of the two ends of the valve shell (1), the surfaces of the two ends of the valve shell (1) are provided with access clamping groove one (4), the side surface of the valve shell (1) is provided with sealing leak-proof ring (8) installed on the side surface of the assembly ring (3), the sealing leak-proof ring (8) is completely clamped into the inside of the access clamping groove one (4) after the side wall surface of the valve shell (1) contacts with the assembly ring (3), the side surface of the assembly ring (3) away from the valve shell (1) is provided with access clamping groove two (7), the surface of the assembly ring (3) is provided with two position corresponding positioning slot (5), the two positioning slot (5) are clamped and installed with clamping frame (9), the size of the outside of the clamping frame (9) is matched with the size of the inside of the access clamping groove two (7), the inside of the clamping frame (9) is provided with protective screen (10).

2. A flow controlled butterfly valve according to claim 1, characterized in that: The whole of the protective screen (10) is a tapered structure with the tip towards the outside of the assembly ring (3), the outside of the clamping frame (9) is fixedly installed with two symmetrical access clamping plates (11).

3. A flow controlled butterfly valve according to claim 2, wherein: The inside bottom surface of the positioning slot (5) is provided with butt joint through hole (6) for positioning, the inside of the access clamping plate (11) is provided with locking hole (12) with the same inner diameter as the butt joint through hole (6).

4. A flow controlled butterfly valve according to claim 3, wherein: After the clamping frame (9) is clamped into the inside of the access clamping groove two (7), the access clamping plate (11) is inserted into the corresponding positioning slot (5), the locking hole (12) is correspondingly positioned with the butt joint through hole (6) and is locked by the bolt.

5. A flow controlled butterfly valve according to claim 4, wherein: The surfaces of the two sides of the valve shell (1) and the surface of the assembly ring (3) are respectively provided with installation insertion hole two (14) and installation insertion hole one (13), the inside hole diameter of the butt joint through hole (6) is the same as the inside diameter of the installation insertion hole one (13), the tip part of the protective screen (10) is located in the inside of the assembly ring (3) after the clamping frame (9) is installed.

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