High performance bidirectional pressure wafer butterfly valve

Abstract

The present invention relates to the technical field of wafer-type butterfly valves, and proposes a high-performance bidirectional pressure wafer-type butterfly valve, comprising: a filtering mechanism arranged on a water pipe, the filtering mechanism comprising a filter screen, by installing the filter screen inside the water pipe, the fluid flowing to the inside of the valve body can be filtered, so as to avoid the wear of the valve plate by particulate impurities, and improve the sealing performance of the valve plate, and the filter screen is convenient for installation and removal inside the water pipe, which is convenient for the later repair, maintenance and replacement of the filter screen. A dirt collecting component is arranged at the bottom of the water pipe located on the lower side of the filtering mechanism, and the dirt filtered by the filter screen is conveniently collected and processed by the dirt collecting component. A transmission mechanism is arranged on the water pipe, and a cleaning mechanism is arranged inside the water pipe. When the transmission mechanism is working, the cleaning mechanism can automatically clean the dirt accumulated on the filter screen in cooperation with the transmission of the transmission mechanism, so as to avoid the filter screen from affecting the filtering effect due to blockage.

Description

Technical Field

[0001] The invention relates to the technical field of wafer-type butterfly valves, and in particular to a high-performance bidirectional pressure wafer-type butterfly valve. Background Art

[0002] The butterfly plate of the wafer butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0°-90°. When it rotates to 90°, the valve is in a fully open state. This valve is generally installed horizontally. The wafer butterfly valve has a simple structure, small size, and light weight. It is composed of only a few parts, and it can be quickly opened and closed by rotating 90°. It is easy to operate and has good fluid control characteristics. The bidirectional pressure wafer butterfly valve can face or back to the flow direction of the medium, and there is no need to pay attention to the flow direction of the medium during installation.

[0003] When the existing disc-shaped butterfly plate conducts or blocks the fluid, some large particles of impurities in the fluid flow along, which can easily cause wear to the internal valve plate and other structures of the butterfly valve, affecting its use effect and reducing its performance. Some sticky substances and filamentous debris in the fluid can easily adhere to and entangle on the surface of the valve plate, which requires it to be disassembled during cleaning, which consumes a lot of time during the cleaning process and is troublesome and inconvenient to operate.

[0004] In view of this, the present invention proposes a high-performance bidirectional pressure-clamped butterfly valve. Summary of the invention

[0005] The present invention provides a high-performance bidirectional pressure-clamped butterfly valve, which solves the problem in the related art that some large particle impurities in the fluid easily cause wear to the valve plate, affecting its use effect and reducing its performance.

[0006] The technical solution of the present invention is as follows: a high-performance bidirectional pressure-on-wafer butterfly valve, comprising: a valve body and a base fixed to the bottom of the valve body, water pipes connected to the inside of the valve body are symmetrically fixed at both ends of the valve body, a filtering mechanism is arranged on the water pipe, the filtering mechanism comprises a filter screen for filtering the fluid flowing into the inside of the valve body, and a through groove for the filter screen to be inserted is opened through the outer wall of the upper side of the water pipe; A transmission mechanism is provided on the water pipe, the filtering mechanism is located between the transmission mechanism and the valve body, and a cleaning mechanism is provided inside the water pipe. The cleaning mechanism can clean the dirt accumulated on the filter screen in cooperation with the transmission mechanism. A dirt collecting component is arranged at the bottom of the water pipe located at the lower side of the filtering mechanism, and is used for collecting dirt filtered by the filtering net plate.

[0007] Preferably, the filtering mechanism includes a right-angle frame fixedly connected to the upper outer wall of the water pipe, a rod is sleeved through the top end of the right-angle frame, the rod is slidably connected to the right-angle frame, a turntable is fixed to the top end of the rod, a threaded section is provided on the outer wall of the rod located on the lower side of the turntable, and the threaded section is threadedly connected to the right-angle frame.

[0008] Preferably, the filtering mechanism also includes two guide rods symmetrically arranged on both sides of the insertion rod, the guide rods slide through the top of the right-angle frame, the bottom ends of the two guide rods are commonly fixed with a sealing cover strip, the top of the filter mesh plate is fixedly suspended on the inner side of the sealing cover strip, and a rotating seat is fixed on the top of the sealing cover strip, and the bottom end of the insertion rod is rotatably connected to the rotating seat.

[0009] Preferably, a lap joint cavity for lap jointing of a sealing cover strip is provided on the upper outer wall of the water delivery pipe, the lap joint cavity is communicated with the through groove, and a sealing gasket is bonded to the inner wall of the through groove.

[0010] Preferably, the transmission mechanism includes a transmission frame fixedly connected to the outer wall of the water pipe, the transmission frame is connected to the inside of the water pipe, a shaft is rotatably connected to the outer wall of the transmission frame, a plurality of fan blades are fixedly connected to the outer wall of the shaft, the fan blades are arc-shaped plates, and a plurality of the fan blades are arranged in a circular array on the outer wall of the shaft, and a first bevel gear is fixedly connected to the end of the shaft away from the transmission frame.

[0011] Preferably, the transmission mechanism also includes a vertical plate fixedly connected to the inner wall of the water pipe, a sleeve is fixedly connected to one end of the vertical plate away from the inner wall of the water pipe, a rotating rod is rotatably mounted inside the sleeve, a second bevel gear meshing with the first bevel gear is fixedly connected to one end of the rotating rod, and a transmission gear is fixedly connected to the other end of the rotating rod.

[0012] Preferably, the cleaning mechanism includes a rotating ring rotatably connected to the inside of the water pipe, a gear ring meshing with a transmission gear is fixedly connected to the outer wall of the rotating ring close to the fan blades, an L-shaped rod is provided on the outer wall of the rotating ring away from the fan blades, and bristles are distributed on the outer wall of the L-shaped rod.

[0013] Preferably, the L-shaped rod is detachably fixed to the outer wall of the rotating ring by bolts, and the long rod on the L-shaped rod extends to intersect with the central axis of the rotating ring.

[0014] Preferably, the sewage collecting assembly includes a containing frame fixedly connected to the bottom of the water pipe, the containing frame is connected to the inside of the water pipe, a through opening is opened at one end of the containing frame for removing the dirt collected inside the containing frame, and a cover plate for sealing the through opening is detachably fixed to one end of the containing frame by screws.

[0015] Preferably, a transmission cylinder is fixedly connected to the top end of the valve body, a valve plate is movably arranged inside the valve body, and a rotating shaft for turning the valve plate is rotatably sleeved inside the transmission cylinder.

[0016] The working principle and beneficial effects of the present invention are: In the present invention, a filtering mechanism is provided on the water pipe, and the filtering mechanism includes a filter screen. A through groove for the filter screen to pass through is provided through the outer wall on the upper side of the water pipe. By installing the filter screen inside the water pipe, the fluid flowing to the inside of the valve body can be filtered, thereby preventing particulate impurities from causing wear on the valve plate and improving the sealing performance of the valve plate. In addition, the filter screen is convenient to install and disassemble inside the water pipe, which is convenient for the subsequent repair, maintenance and replacement of the filter screen. A dirt collecting component is provided at the bottom of the water pipe located on the lower side of the filtering mechanism, and the dirt filtered by the filter screen is conveniently collected and processed by the dirt collecting component; In the present invention, a transmission mechanism is provided on the water pipe, and a cleaning mechanism is provided inside the water pipe. The transmission mechanism can be driven by the fluid flowing through the inside of the water pipe. When the transmission mechanism is working, the cleaning mechanism can automatically clean the dirt accumulated on the filter screen in cooperation with the transmission of the transmission mechanism, thereby preventing the filter screen from being blocked and affecting the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the installation structure of the filtering mechanism proposed by the present invention; Figure 2 This is a schematic diagram of the structure of the filter mechanism proposed by the present invention; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 This is a schematic diagram of the internal structure of the water pipe proposed by the present invention; Figure 5 for Figure 4 The enlarged structural diagram at B in the middle; Figure 6 This is a schematic diagram of the cleaning mechanism structure proposed by the present invention; In the figure: 1, rotating shaft; 2, transmission cylinder; 3, valve body; 4, base; 5, sewage collection component; 501, containing frame; 502, screw; 503, cover plate; 6, water pipe; 601, overlapping cavity; 602, sealing gasket; 603, through groove; 7, transmission mechanism; 701, fan blade; 702, transmission frame; 703, shaft; 704, first bevel gear; 705, second bevel gear; 706, rotating rod ; 707, sleeve; 708, transmission gear; 709, vertical plate; 8, filtering mechanism; 801, guide rod; 802, turntable; 803, threaded section; 804, plug rod; 805, right-angle bracket; 806, rotating seat; 807, sealing cover strip; 808, filter screen; 9, cleaning mechanism; 901, rotating ring; 902, gear ring; 903, L-shaped rod; 904, bristles; 10, valve plate. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0020] See also Figure 1 , Figure 2 as well as Figure 3 , a high-performance bidirectional pressure-type butterfly valve comprises: a valve body 3 and a base 4 fixed to the bottom of the valve body 3, a transmission cylinder 2 fixedly connected to the top of the valve body 3, a valve plate 10 movably arranged inside the valve body 3, and a rotating shaft 1 for turning the valve plate 10 rotatably sleeved inside the transmission cylinder 2. A water pipe 6 connected to the inside of the valve body 3 is symmetrically fixed at both ends of the valve body 3, a filter mechanism 8 is arranged on the water pipe 6, and the filter mechanism 8 includes a filter screen 808 for filtering the fluid flowing into the inside of the valve body 3, a through groove 603 for the filter screen 808 to penetrate is opened on the upper outer wall of the water pipe 6, and a lap cavity 601 for the sealing cover strip 807 to be lapped is opened on the upper outer wall of the water pipe 6, and the lap cavity 601 is connected to the through groove 603, and a sealing gasket 602 is bonded to the inner wall of the through groove 603.

[0021] Specifically, the filtering mechanism 8 includes a right angle frame 805 fixedly connected to the upper outer wall of the water pipe 6, a plug rod 804 is sleeved through the top of the right angle frame 805, the plug rod 804 is slidably connected to the right angle frame 805, a turntable 802 is fixedly connected to the top of the plug rod 804, a threaded section 803 is provided on the outer wall of the plug rod 804 located on the lower side of the turntable 802, and the threaded section 803 is threadedly connected to the right angle frame 805. The filtering mechanism 8 also includes two guide rods 801 symmetrically arranged on both sides of the plug rod 804, the guide rod 801 slides through the top of the right angle frame 805, the bottom ends of the two guide rods 801 are commonly fixedly connected to a sealing cover strip 807, the top end of the filter screen plate 808 is fixedly suspended on the inner side of the sealing cover strip 807, a rotating seat 806 is fixedly connected to the top of the sealing cover strip 807, and the bottom end of the plug rod 804 is rotatably connected to the rotating seat 806.

[0022] Working principle of this embodiment: when working, the fluid flows into the valve body 3 through a port of the water pipe 6 and is discharged through another water pipe 6. In this process, the fluid flowing into the valve body 3 can be filtered under the action of the filter screen 808. When the filter screen 808 needs to be taken out from the water pipe 6 for repair and maintenance, the plug 804 is rotated by the turntable 802, so that the threaded section 803 rotates in the right-angle bracket 805, and the threaded section 803 can move upward, thereby driving the sealing cover strip 807 to move upward, and the sealing cover strip 807 drives the filter screen 808 to be taken out from the water pipe 6. At this time, it is convenient to repair, maintain and replace the filter screen 808. When it is necessary to install the filter screen plate 808 inside the water pipe 6, push the insertion rod 804 downward until the threaded section 803 contacts the right-angle frame 805, and then rotate the threaded section 803 through the turntable 802 to move the threaded section 803 downward, thereby driving the sealing cover strip 807 to move downward. The sealing cover strip 807 drives the filter screen plate 808 through the groove 603 and enters the water pipe 6 until the sealing cover strip 807 is tightly overlapped on the inner side of the overlap cavity 601, thereby forming a seal on the outer wall of the water pipe 6. Example 2

[0023] See also Figure 1 , Figure 4 , Figure 5 as well as Figure 6 A transmission mechanism 7 is arranged on the water pipe 6, and the filtering mechanism 8 is located between the transmission mechanism 7 and the valve body 3. A cleaning mechanism 9 is arranged inside the water pipe 6. The cleaning mechanism 9 can clean the dirt accumulated on the filter screen 808 by cooperating with the transmission mechanism 7.

[0024] Specifically, the transmission mechanism 7 includes a transmission frame 702 fixedly connected to the outer wall of the water pipe 6, the transmission frame 702 is connected to the inside of the water pipe 6, a shaft 703 is rotatably connected to the outer wall of the transmission frame 702, a plurality of blades 701 are fixedly connected to the outer wall of the shaft 703, the blades 701 are arc-shaped plates, and the plurality of blades 701 are annularly arrayed on the outer wall of the shaft 703, and a first bevel gear 704 is fixedly connected to one end of the shaft 703 away from the transmission frame 702. The transmission mechanism 7 also includes a vertical plate 709 fixedly connected to the inner wall of the water pipe 6, a sleeve 707 is fixedly connected to one end of the vertical plate 709 away from the inner wall of the water pipe 6, a rotating rod 706 is rotatably sleeved inside the sleeve 707, a second bevel gear 705 meshing with the first bevel gear 704 is fixedly connected to one end of the rotating rod 706, and a transmission gear 708 is fixedly connected to the other end of the rotating rod 706.

[0025] The cleaning mechanism 9 includes a rotating ring 901 rotatably connected to the inside of the water pipe 6, a gear ring 902 meshing with the transmission gear 708 is fixedly connected to the outer wall of the rotating ring 901 close to the fan blade 701, and an L-shaped rod 903 is arranged on the outer wall of the rotating ring 901 away from the fan blade 701, and bristles 904 are distributed on the outer wall of the L-shaped rod 903. The L-shaped rod 903 is detachably fixed to the outer wall of the rotating ring 901 by bolts, and the long rod on the L-shaped rod 903 extends to intersect with the central axis of the rotating ring 901.

[0026] Working principle of this embodiment: During the flow of fluid, the fan blade 701 located at the lower side will be impacted, thereby driving the shaft 703 to rotate. It should be noted that the friction between the shaft 703 and the transmission frame 702, the friction between the rotating rod 706 and the sleeve 707, and the friction between the rotating ring 901 and the water pipe 6 can affect the rotation speed of the shaft 703. When the shaft 703 rotates, it can drive the first bevel gear 704 to rotate. The first bevel gear 704 is rotated. 04 drives the second bevel gear 705 to rotate, the second bevel gear 705 drives the rotating rod 706 to rotate, the rotating rod 706 drives the transmission gear 708 to rotate, the transmission gear 708 drives the fan blade 701 to rotate inside the water pipe 6 through the gear ring 902, the rotating ring 901 drives the L-shaped rod 903 to revolve, and the L-shaped rod 903 cleans the outer wall of the filter screen plate 808 through the bristles 904 thereon to prevent dirt from clogging the filter screen plate 808 and affecting subsequent filtering work. Example 3

[0027] See also Figure 1 and Figure 2 A dirt collecting component 5 is provided at the bottom of the water pipe 6 located at the lower side of the filtering mechanism 8, which is used to collect the dirt filtered by the filtering net plate 808.

[0028] Specifically, the dirt collecting component 5 includes a containing frame 501 fixedly connected to the bottom of the water pipe 6. The containing frame 501 is connected to the inside of the water pipe 6. A through opening is opened at one end of the containing frame 501 for taking out the dirt collected inside the containing frame 501. A cover plate 503 for sealing the through opening is detachably fixed to one end of the containing frame 501 by screws 502.

[0029] Working principle of this embodiment: the particle impurities and part of the dirt in the fluid are filtered through the filter screen 808, and the filtered particle impurities and part of the dirt will gradually move downward under the action of their own gravity, and finally gather in the interior of the container frame 501 for collection. After a long period of work, the screws 502 on the cover plate 503 are screwed out, and the cover plate 503 is removed from the port of the container frame 501, and the particle impurities and part of the dirt accumulated in the container frame 501 can be removed.

[0030] The working principle and use process of the present invention are as follows: when working, the fluid flows into the valve body 3 through a water pipe 6 port and is discharged through another water pipe 6. In this process, under the action of the filter mesh plate 808, the fluid flowing into the valve body 3 can be filtered, and the particulate impurities and some dirt in the fluid can be filtered. The filtered particulate impurities and some dirt will gradually move downward under the action of their own gravity, and finally gather in the containing frame 501 for collection. During the flow of fluid, the fan blades 701 located on the lower side will be impacted, thereby driving the shaft 703 to rotate, the shaft 703 drives the first bevel gear 704 to rotate, the first bevel gear 704 drives the second bevel gear 705 to rotate, the second bevel gear 705 drives the rotating rod 706 to rotate, the rotating rod 706 drives the transmission gear 708 to rotate, the transmission gear 708 drives the fan blades 701 to rotate inside the water pipe 6 through the gear ring 902, the rotating ring 901 drives the L-shaped rod 903 to revolve, and the L-shaped rod 903 cleans the outer wall of the filter screen 808 through the bristles 904 thereon to prevent dirt from clogging the filter screen 808 and affecting subsequent filtering work.

[0031] After a long period of work, the screws 502 on the cover plate 503 are screwed out, and the cover plate 503 is removed from the port of the container frame 501. At this time, the particulate impurities and some dirt accumulated inside the container frame 501 can be removed. When the filter screen plate 808 needs to be removed from the water pipe 6 for repair and maintenance, the plug rod 804 is rotated by the turntable 802, so that the threaded section 803 rotates in the right angle frame 805, and the threaded section 803 can move upward, thereby driving the sealing cover strip 807 to move upward, and the sealing cover strip 807 drives the filter screen plate 808 to be removed from the water pipe 6. At this time, it is convenient to repair, maintain and replace the filter screen plate 808. When it is necessary to install the filter screen plate 808 inside the water pipe 6, push the insertion rod 804 downward until the threaded section 803 contacts the right-angle frame 805, and then rotate the threaded section 803 through the turntable 802 to move the threaded section 803 downward, thereby driving the sealing cover strip 807 to move downward. The sealing cover strip 807 drives the filter screen plate 808 through the groove 603 and enters the water pipe 6 until the sealing cover strip 807 is tightly overlapped on the inner side of the overlap cavity 601, thereby forming a seal on the outer wall of the water pipe 6.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. High performance bidirectional pressure wafer butterfly valve, including: A valve body (3) and a base (4) fixed to the bottom of the valve body (3), characterized in that water pipes (6) connected to the interior of the valve body (3) are symmetrically fixed at both ends of the valve body (3), a filtering mechanism (8) is provided on the water pipe (6), the filtering mechanism (8) comprises a filtering mesh plate (808) for filtering the fluid flowing into the interior of the valve body (3), and a through groove (603) for the filtering mesh plate (808) to pass through is provided through the outer wall of the upper side of the water pipe (6); A transmission mechanism (7) is provided on the water delivery pipe (6), the filtering mechanism (8) is located between the transmission mechanism (7) and the valve body (3), and a cleaning mechanism (9) is provided inside the water delivery pipe (6). The cleaning mechanism (9) can clean dirt accumulated on the filter screen (808) by cooperating with the transmission mechanism (7); A dirt collecting component (5) is provided at the bottom of the water delivery pipe (6) located at the lower side of the filtering mechanism (8) for collecting dirt filtered by the filtering net plate (808).

2. The high-performance bidirectional pressure-on-wafer butterfly valve according to claim 1 is characterized in that: The filtering mechanism (8) comprises a right-angle frame (805) fixedly connected to the upper outer wall of the water pipe (6); a plug rod (804) is sleeved through the top end of the right-angle frame (805); the plug rod (804) is slidably connected to the right-angle frame (805); a rotating disk (802) is fixedly connected to the top end of the plug rod (804); a threaded section (803) is provided on the outer wall of the plug rod (804) located below the rotating disk (802); and the threaded section (803) is threadedly connected to the right-angle frame (805).

3. The high-performance bidirectional pressure-on-wafer butterfly valve according to claim 2 is characterized in that: The filtering mechanism (8) further comprises two guide rods (801) symmetrically arranged on both sides of the insertion rod (804); the guide rods (801) slide through the top of the right-angle frame (805); the bottom ends of the two guide rods (801) are fixedly connected to a sealing cover strip (807); the top end of the filter screen plate (808) is fixedly suspended on the inner side of the sealing cover strip (807); a rotating seat (806) is fixedly connected to the top of the sealing cover strip (807); and the bottom end of the insertion rod (804) is rotatably connected to the rotating seat (806).

4. The high-performance bidirectional pressure-on-wafer butterfly valve according to claim 3 is characterized in that: A lap joint cavity (601) for lap jointing of a sealing cover strip (807) is provided on the upper outer wall of the water delivery pipe (6), the lap joint cavity (601) is connected to the through groove (603), and a sealing gasket (602) is bonded to the inner wall of the through groove (603).

5. The high-performance bidirectional pressure-on-wafer butterfly valve according to claim 1 is characterized in that: The transmission mechanism (7) comprises a transmission frame (702) fixedly connected to the outer wall of the water pipe (6); the transmission frame (702) is connected to the inside of the water pipe (6); a shaft (703) is rotatably connected to the outer wall of the transmission frame (702); a plurality of fan blades (701) are fixedly connected to the outer wall of the shaft (703); the fan blades (701) are arc-shaped plates; the plurality of fan blades (701) are arranged in an annular array on the outer wall of the shaft (703); and a first bevel gear (704) is fixedly connected to one end of the shaft (703) away from the transmission frame (702).

6. The high-performance bidirectional pressure-on-wafer butterfly valve according to claim 5 is characterized in that: The transmission mechanism (7) further comprises a vertical plate (709) fixedly connected to the inner wall of the water pipe (6); a sleeve (707) is fixedly connected to one end of the vertical plate (709) away from the inner wall of the water pipe (6); a rotating rod (706) is rotatably sleeved inside the sleeve (707); a second bevel gear (705) meshing with the first bevel gear (704) is fixedly connected to one end of the rotating rod (706); and a transmission gear (708) is fixedly connected to the other end of the rotating rod (706).

7. The high-performance bidirectional pressure-on-wafer butterfly valve according to claim 6 is characterized in that: The cleaning mechanism (9) comprises a rotating ring (901) rotatably connected to the inside of the water pipe (6); a toothed ring (902) meshing with a transmission gear (708) is fixedly connected to the outer wall of the rotating ring (901) on the side close to the fan blades (701); an L-shaped rod (903) is arranged on the outer wall of the rotating ring (901) on the side away from the fan blades (701); and bristles (904) are distributed on the outer wall of the L-shaped rod (903).

8. The high-performance bidirectional pressure-on-wafer butterfly valve according to claim 7 is characterized in that: The L-shaped rod (903) is detachably fixed to the outer wall of the rotating ring (901) by means of bolts, and the long rod on the L-shaped rod (903) extends to intersect with the central axis of the rotating ring (901).

9. The high-performance bidirectional pressure-on-wafer butterfly valve according to claim 1, characterized in that: The dirt collecting assembly (5) comprises a containing frame (501) fixedly connected to the bottom of the water pipe (6); the containing frame (501) is connected to the inside of the water pipe (6); a through opening is provided at one end of the containing frame (501) for removing dirt collected inside the containing frame (501); and a cover plate (503) for sealing the through opening is detachably fixedly connected to one end of the containing frame (501) by means of screws (502).

10. The high performance bidirectional pressure-on-wafer butterfly valve according to claim 1, characterized in that: A transmission cylinder (2) is fixedly connected to the top end of the valve body (3), a valve plate (10) is movably arranged inside the valve body (3), and a rotating shaft (1) for turning the valve plate (10) is rotatably sleeved inside the transmission cylinder (2).

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