High-pressure balance water inlet butterfly valve

Abstract

The utility model relates to the technical field of butterfly valves, and discloses a high-pressure balance water inlet butterfly valve which comprises a valve body, a dismounting mechanism is arranged on the valve body, and the dismounting mechanism comprises a mounting plate, a mounting bolt, a butterfly plate, a sealing groove, a first sealing ring, a connecting rod, a pressing plate, a pressing block, a fixing bolt and a second sealing ring. The mounting plate is arranged at the top of the valve body, the mounting bolt penetrates through the mounting plate and is in threaded connection with the top of the valve body, the butterfly plate penetrates through the mounting plate, the sealing groove is formed in the side face of the butterfly plate, and the first sealing ring is arranged on the sealing groove. By arranging the mounting plate and the mounting bolt, the butterfly plate can be conveniently taken down to be overhauled, operation is easy, maintenance is convenient, the interior of the valve body can be sealed by arranging the first sealing ring and the second sealing ring, the butterfly plate can be pressed by arranging the pressing block, it is ensured that the butterfly plate and the inner wall of the valve body are connected more tightly, and then the sealing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a high-pressure balanced water inlet butterfly valve. Background Art

[0002] The butterfly valve, also known as the flap valve, is a regulating valve with a simple structure. The butterfly valve generally includes a valve body, a valve stem that passes through the valve body, and a butterfly plate that is set in the flow channel of the valve body and acts as an opening and closing member. The butterfly plate is disc-shaped, and the valve stem and the butterfly plate are linked to control the rotation of the butterfly plate around the axis of the valve stem, thereby achieving the purpose of opening, closing or regulation.

[0003] For example, the Chinese patent "CN217633915U" discloses the following technical solution: a high-pressure balanced butterfly valve, including a valve body, a valve stem and a butterfly plate, a flow channel is provided in the middle of the valve body, a through hole is provided at the upper and lower ends of the valve body, the butterfly plate is mounted on the valve stem, and a valve seat is provided in the flow channel; a sealing groove is provided at the outer ends of the two through holes, and a sealing mechanism is provided at the upper and lower ends of the valve body, respectively. The sealing mechanism includes a packing gland, an isolation ring and two groups of packing assemblies, the isolation ring and the two groups of packing assemblies are arranged in the corresponding sealing grooves, and the two groups of packing assemblies are arranged at the upper and lower ends of the isolation ring, respectively. The packing gland is connected to the top of the valve body, and a clamping flange is provided on the packing gland. The packing assembly includes a first sealing packing and a second sealing packing, and a conical recess is provided at the lower end of the first sealing packing, and the second sealing packing is embedded in the conical recess. The utility model has good sealing performance between the valve stem and the valve body, which prevents the medium in the valve body from leaking from the gap between the two, and can effectively prevent the occurrence of safety accidents.

[0004] However, when the butterfly valve is overhauled, the entire valve and related connectors such as the butterfly plate and valve stem need to be removed from the fluid pipeline, which is inconvenient for overhaul and replacement of the sealing ring. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a high-pressure balanced water inlet butterfly valve.

[0006] To achieve the above object, the utility model provides the following technical solutions: a high-pressure balanced water inlet butterfly valve, comprising a valve body, the valve body is provided with a disassembly mechanism, the disassembly mechanism comprises a mounting plate, mounting bolts, a butterfly plate, a sealing groove, a first sealing ring, a connecting rod, a pressing plate, a pressing block, a fixing bolt, and a second sealing ring;

[0007] The mounting plate is arranged on the top of the valve body, the mounting bolts penetrate the mounting plate and are threadedly connected to the top of the valve body, the butterfly plate penetrates the mounting plate, the sealing groove is opened on the side of the butterfly plate, and the first sealing ring is arranged on the sealing groove.

[0008] Preferably, the connecting rod is fixedly connected to the bottom of the mounting plate, the pressing plate is fixedly connected to the bottom of the connecting rod, the pressing block is arranged at the bottom of the pressing plate, and the fixing bolt passes through the valve body and is threadedly connected to the pressing block.

[0009] Preferably, the second sealing ring is arranged at the connection between the mounting plate and the butterfly plate.

[0010] Preferably, an adjustment mechanism is provided on the mounting plate, and the adjustment mechanism includes a disc, a scale bar, a positioning plate, a handle, and a clamping block. The disc is fixedly connected to the top of the mounting plate, the scale bar is arranged on the top of the disc, the positioning plate is fixedly connected to the side of the disc, the handle is hinged to the top of the butterfly plate, and the clamping block is fixedly connected to the bottom of the handle.

[0011] Preferably, a detection tube is provided on the side of the valve body, and a pressure gauge is installed on the detection tube. The pressure gauge is provided to observe the water pressure at the water inlet end, thereby facilitating adjustment according to the water pressure.

[0012] Preferably, flanges are fixedly connected to both ends of the valve body, and eight connecting holes are provided on the flanges, so that the valve body can be easily connected to the pipeline by providing the flanges.

[0013] Compared with the prior art, the utility model provides a high-pressure balanced water inlet butterfly valve, which has the following beneficial effects:

[0014] 1. The high-pressure balanced water inlet butterfly valve is convenient for removing the butterfly plate for inspection by providing a mounting plate and mounting bolts. The operation is simple and convenient for maintenance. The interior of the valve body can be sealed by providing a first sealing ring and a second sealing ring. The butterfly plate can be pressed by providing a pressure block to ensure that the butterfly plate is more tightly connected to the inner wall of the valve body, thereby improving the sealing effect.

[0015] Second, the high-pressure balanced water inlet butterfly valve can more accurately adjust the opening degree of the butterfly plate by setting the disc and the scale bar, so as to facilitate the adjustment of the water pressure and the water flow. The handle can be better fixed by setting the positioning plate and the block, so as to make the butterfly plate more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a front sectional view of the utility model;

[0019] Figure 3It is an enlarged view of point A of the present utility model.

[0020] In the figure: 1. valve body; 2. disassembly mechanism; 201. mounting plate; 202. mounting bolts; 203. butterfly plate; 204. sealing groove; 205. first sealing ring; 206. connecting rod; 207. pressure plate; 208. pressure block; 209. fixing bolts; 210. second sealing ring; 3. adjustment mechanism; 301. disc; 302. scale bar; 303. positioning plate; 304. handle; 305. block; 4. pressure gauge; 5. flange. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Example 1

[0023] like Figure 1-3 As shown, the utility model provides a high-pressure balanced water inlet butterfly valve, including a valve body 1, a disassembly mechanism 2 is arranged on the valve body 1, and the disassembly mechanism 2 includes a mounting plate 201, mounting bolts 202, a butterfly plate 203, a sealing groove 204, a first sealing ring 205, a connecting rod 206, a pressing plate 207, a pressing block 208, a fixing bolt 209, and a second sealing ring 210; the mounting plate 201 is arranged on the top of the valve body 1, the mounting bolts 202 penetrate the mounting plate 201 and are threadedly connected to the top of the valve body 1, the butterfly plate 203 penetrates the mounting plate 201, the sealing groove 204 is opened on the side of the butterfly plate 203, the first sealing ring 205 is arranged on the sealing groove 204, and the connecting rod 206 is connected to the butterfly plate 203. The rod 206 is fixedly connected to the bottom of the mounting plate 201, the pressure plate 207 is fixedly connected to the bottom of the connecting rod 206, the pressure block 208 is arranged at the bottom of the pressure plate 207, the fixing bolt 209 passes through the valve body 1 and is threadedly connected to the pressure block 208, the second sealing ring 210 is arranged at the connection between the mounting plate 201 and the butterfly plate 203, and a detection tube is arranged on the side of the valve body 1, and a pressure gauge 4 is installed on the detection tube. The pressure gauge 4 is used to observe the water pressure at the water inlet end, so as to facilitate adjustment according to the water pressure. Flanges 5 are fixedly connected to both ends of the valve body 1, and eight connecting holes are opened on the flange 5. The flange 5 is arranged to facilitate the connection of the valve body 1 with the pipeline.

[0024] In this embodiment, the installation plate 201 and the installation bolts 202 are provided to facilitate the removal of the butterfly plate 203 for inspection, which is simple to operate and convenient for maintenance. The first sealing ring 205 and the second sealing ring 210 can be provided to seal the interior of the valve body 1, and the pressing block 208 can be provided to tighten the butterfly plate 203 to ensure that the butterfly plate 203 is more tightly connected to the inner wall of the valve body 1, thereby improving the sealing effect.

[0025] Example 2

[0026] like Figure 1-3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, an adjustment mechanism 3 is provided on the mounting plate 201, and the adjustment mechanism 3 includes a disc 301, a scale bar 302, a positioning plate 303, a handle 304, and a clamping block 305. The disc 301 is fixedly connected to the top of the mounting plate 201, the scale bar 302 is arranged on the top of the disc 301, the positioning plate 303 is fixedly connected to the side of the disc 301, the handle 304 is hinged to the top of the butterfly plate 203, and the clamping block 305 is fixedly connected to the bottom of the handle 304.

[0027] In this embodiment, by providing the disc 301 and the scale bar 302, the opening degree of the butterfly plate 203 can be more accurately adjusted, thereby facilitating the adjustment of the water pressure and the water flow size. By providing the positioning plate 303 and the block 305, the handle 304 can be better fixed, thereby making the butterfly plate 203 more stable.

[0028] The following is a detailed description of the working principle of the high-pressure balanced water inlet butterfly valve.

[0029] like Figure 1-3 As shown, when in use, by lifting the handle 304 upwards, the block 305 is separated from the positioning plate 303, and then the handle 304 is turned, the handle 304 drives the butterfly plate 203 to rotate, so as to open the butterfly valve, and the opening degree of the butterfly plate 203 is adjusted by observing the scale bar 302 on the disk 301. When the butterfly plate 203 is completely opened, the handle 304 is lowered to make the block 305 fall into the positioning plate 303 to fix the butterfly plate 203. When maintenance is required, the installation screw is turned to open the butterfly valve. Bolt 202, separate the mounting plate 201 from the valve body 1, and then rotate the fixing bolt 209 to separate the pressing block 208 from the valve body 1, so that the butterfly plate 203 can be removed for inspection. After the inspection is completed, the butterfly plate 203 is first placed into the interior of the valve body 1, and then the pressing block 208 is placed, and the pressing block 208 is fixed by the fixing bolt 209, so as to fix the butterfly plate 203, and then the mounting plate 201 is put on the butterfly plate 203, and the mounting plate 201 is fixed by the mounting bolt 202.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-pressure balanced water inlet butterfly valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a disassembly mechanism (2), and the disassembly mechanism (2) comprises a mounting plate (201), mounting bolts (202), a butterfly plate (203), a sealing groove (204), a first sealing ring (205), a connecting rod (206), a pressure plate (207), a pressure block (208), a fixing bolt (209), and a second sealing ring (210); the mounting plate (201) is arranged at the top of the valve body (1), the mounting bolts (202) pass through the mounting plate (201) and are threadedly connected to the top of the valve body (1), the butterfly plate (203) passes through the mounting plate (201), the sealing groove (204) is opened on the side of the butterfly plate (203), and the first sealing ring (205) is arranged on the sealing groove (204).

2. The high pressure balanced water inlet butterfly valve according to claim 1 is characterized in that: The connecting rod (206) is fixedly connected to the bottom of the mounting plate (201), the pressing plate (207) is fixedly connected to the bottom of the connecting rod (206), the pressing block (208) is arranged at the bottom of the pressing plate (207), and the fixing bolt (209) passes through the valve body (1) and is threadedly connected to the pressing block (208).

3. The high pressure balanced water inlet butterfly valve according to claim 2 is characterized in that: The second sealing ring (210) is arranged at the connection between the mounting plate (201) and the butterfly plate (203).

4. The high pressure balanced water inlet butterfly valve according to claim 3 is characterized in that: The mounting plate (201) is provided with an adjustment mechanism (3), the adjustment mechanism (3) comprising a disc (301), a scale bar (302), a positioning plate (303), a handle (304), and a clamping block (305); the disc (301) is fixedly connected to the top of the mounting plate (201); the scale bar (302) is arranged on the top of the disc (301); the positioning plate (303) is fixedly connected to the side of the disc (301); the handle (304) is hinged to the top of the butterfly plate (203); and the clamping block (305) is fixedly connected to the bottom of the handle (304).

5. The high pressure balanced water inlet butterfly valve according to claim 4 is characterized in that: A detection tube is provided in communication with the side of the valve body (1), and a pressure gauge (4) is installed on the detection tube.

6. The high pressure balanced water inlet butterfly valve according to claim 5, characterized in that: Flanges (5) are fixedly connected to both ends of the valve body (1), and eight connection holes are provided on the flange (5).

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