A rotary cutting flow regulating angle valve

Abstract

The present invention relates to the technical field of pipeline flow control, and specifically to a rotary-cut flow regulating angle valve, comprising a fixed valve disc, a rotating valve disc, a sealing mechanism and an exhaust mechanism; the fixed valve disc is installed at the lower part of a valve seat cavity; the rotating valve disc is rotatably installed below the fixed valve disc; the sealing mechanism is connected to the fixed valve disc; the exhaust mechanism is connected to the valve seat cavity; by arranging the sealing mechanism and the exhaust mechanism, during the process of through hole one and through hole two rotating to a coincident position, the exhaust mechanism sprays air to the upper end face of the rotating valve disc to prevent impurities from entering the sealing surface; during the process of through hole one and through hole two rotating to a staggered position, the rotating lever gathers impurities on the surface of the fixed valve disc, the sealing mechanism closes through hole two and receives the impurities gathered on the valve stem to the center position of through hole two; the problem of solid impurities entering the sealing surface causing rotational jamming and sealing surface wear between the valve stem and the valve seat, and even water seepage after the angle valve is closed is solved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline flow control, and in particular to a rotary cutting flow regulating angle valve. Background Art

[0002] The rotary cut flow regulating angle valve is a valve used for pipeline flow control. It mainly rotates the valve stem to rotate the axial hole at the bottom of the valve stem relative to the liquid channel of the valve seat, and controls the overlapping position of the axial hole and the liquid channel to achieve the effect of regulating the flow. Currently, the rotary cut flow regulating angle valve is widely used in pipeline systems that require precise flow control, such as chemical, petroleum, water treatment and other fields.

[0003] In the process of controlling the flow of solid-liquid mixed media, solid particles accumulate between the liquid passages of the valve stem and the valve seat under long-term use. When the valve stem and the valve seat rotate relative to each other, impurities will enter the sealing surface formed between the valve stem and the end face of the valve seat, which will cause the valve stem of the rotary cut flow regulating angle valve to be stuck when rotating, making it time-consuming and laborious to close and open, and even leading to a situation where it cannot be opened or closed. The prior art has proposed a good solution to this problem, such as the rotary cut flow regulating angle valve with patent publication number CN102062222B, which sets a floating valve seat and mounts the floating valve seat on the mounting hole through a spring, so that the upper end of the floating valve seat is close to the lower end of the valve stem, so that the valve stem can automatically remove impurities remaining on the sealing surface every time it rotates, and prevent impurities from entering the sealing surface between the valve stem and the floating valve seat.

[0004] Although the existing technology has solved the problem of impurities entering the sealing surface between the valve stem and the valve seat and accumulating, causing the valve stem to be stuck when rotating, the following problems still exist: when a spring is used to press the valve seat and the valve stem end face to prevent impurities from entering the sealing surface formed between the valve seat and the valve stem, when the water pressure in the valve seat liquid channel of this type of valve seat changes, the valve seat will shake, thereby causing a gap in the sealing surface between the valve seat and the valve stem end face. At this time, solid impurities will still enter the sealing surface, and because the angle valve needs to perform linear flow regulation, when the through hole on the valve seat and the valve stem through hole do not completely overlap, solid particle impurities will stay and accumulate on the sealing surface. When the valve stem and the valve seat are subsequently rotated relative to each other, the solid particles will enter the sealing surface. After the solid impurities enter the sealing surface, it will cause rotation jamming and sealing surface wear between the valve stem and the valve seat, and even water seepage.

[0005] In view of the above situation, in order to overcome the above technical problems, the present invention designs a rotary cutting flow regulating angle valve. Summary of the invention

[0006] The present invention provides a rotary-cut flow regulating angle valve, which solves the problem that solid impurities entering the sealing surface may cause rotational obstruction and sealing surface wear between the valve stem and the valve seat, and even water leakage after the angle valve is closed. By arranging a sealing mechanism and an exhaust mechanism, during the process of rotating the through hole 1 on the rotating valve disc and the through hole 2 on the fixed valve disc to overlap, the exhaust mechanism sprays air to the upper end surface of the rotating valve disc to prevent impurities from entering the sealing surface; during the process of rotating the valve disc to the staggered position of the through hole 1 and the through hole 2, the rotating lever gathers impurities on the surface of the fixed valve disc, the sealing mechanism closes the through hole 2 and receives the impurities gathered on the valve stem to the center position of the through hole 2 to prevent impurities from entering the sealing surface.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A rotary cut flow regulating angle valve, comprising a valve seat cavity, an inflow channel and an outflow channel, and also comprising a valve stem, a fixed valve disc, a rotating valve disc, a sealing mechanism and an exhaust mechanism; the valve stem is rotatably mounted inside the valve seat cavity; the fixed valve disc is mounted at the lower part of the valve seat cavity, and two through holes 2 are provided on the fixed valve disc; the rotating valve disc is rotatably mounted below the fixed valve disc, and two through holes 1 are provided on the rotating valve disc; the sealing mechanism is connected to the fixed valve disc; the exhaust mechanism is connected to the valve seat cavity; the rotating valve stem drives the rotating valve disc to rotate, and the rotating valve disc rotates to a position where through hole 1 and through hole 2 overlap, and the rotating valve disc squeezes the exhaust mechanism, and the exhaust mechanism is pressurized to spray air on the upper end surface of the rotating valve disc and guide impurities to a position above the center of through hole 2; the rotating valve stem causes the rotating valve disc to rotate to a position where through hole 1 and through hole 2 are staggered, and during the rotation, the valve stem gathers impurities on the surface of the fixed valve disc to the position of through hole 2 and squeezes the sealing mechanism, and the sealing mechanism is pressurized to close through hole 2 and receive the impurities gathered by the valve stem to the position of the center of through hole 2.

[0009] Preferably, the valve stem includes a rotating shaft rod, a rotating lever and a handle; the rotating shaft rod is connected to the rotating valve disc; the rotating lever is connected to the rotating shaft rod, the rotating lever is arranged above the fixed valve disc and the line connecting the two outer end points is perpendicular to the line connecting the centers of the two through holes; the handle is connected to the upper end of the rotating shaft rod; the diameters of through hole one and through hole two are equal.

[0010] In the above scheme, by rotating the shaft rod, the shaft rod drives the rotating valve disc to rotate, so that the through hole 1 on the rotating valve disc and the through hole 2 on the fixed valve disc are overlapped, and linear flow adjustment can be performed according to the overlap between the two. When the shaft rod rotates, the rotating lever will rotate at the same time. The rotating lever can remove impurities above the fixed valve disc, and the line connecting the two outer end points of the rotating lever is perpendicular to the line connecting the centers of the two through holes 1, so that the line connecting the two outer end points of the rotating lever in the open state is perpendicular to the line connecting the centers of the two through holes 2, and the line connecting the two outer end points of the rotating lever in the closed state coincides with the line connecting the centers of the two through holes 2. Therefore, in the process of the flow regulating angle valve changing from the open state to the closed state, the rotating lever can gather some impurities above the fixed valve disc into the through hole 2 through the rotating sweeping action, so that the water flow can flush away the impurities in the through hole 2 at one time when it is opened next time, thereby avoiding the accumulation of impurities in the valve seat cavity and causing blockage.

[0011] Preferably, the rotating valve disc is configured to be a magnetic material; the fixed valve disc is configured to be a material that is attracted to the rotating valve disc, and the lower end surface of the fixed valve disc is mounted in a fit with the upper end surface of the rotating valve disc.

[0012] In the above scheme, by setting the rotating valve disc and the fixed valve disc to mutually attractive magnetic materials, it is ensured that the two always remain in a fit state when rotating relative to each other, and that they can always remain in a fit state when wear occurs between the two, thereby ensuring that they can still work normally after wear occurs, and will not affect the flow control; and after setting it to a magnetic material, after rotating to the desired opening and closing degree, it is not easily affected by the water pressure under the action of the magnetic force to cause the rotating valve disc and the fixed valve disc to rotate, thereby maintaining the output flow state after adjusting to the desired output flow state, which is convenient for flow regulation.

[0013] Preferably, the sealing mechanism includes a sealing groove, a sealing slider, a return spring, a pressure block groove, a vertical pressure block, a vertical spring, a closing groove, a connecting groove and a sealing plate; the sealing groove is symmetrically arranged on the side wall of the valve seat cavity; the sealing slider is slidably installed in the sealing groove; the return spring is connected between the sealing slider and the sealing groove; the pressure block groove is arranged below the sealing groove; the vertical pressure block is slidably installed in the pressure block groove; the vertical spring is connected between the pressure block groove and the vertical pressure block; the closing groove is arranged in the fixed valve disc; the connecting groove is arranged between the closing groove and the pressure block groove; the sealing plate is installed in the closing groove.

[0014] In the above scheme, the rotating lever is rotated to the sealing slider position to squeeze the sealing slider, so that the reset spring is compressed. At this time, the sealing slider shrinks into the sealing groove and compresses the vertical pressure block downward, so that the vertical pressure block pushes the sealing plate to seal the through hole two. At this time, the through hole two is in a sealed state, ensuring that when it is in a closed state, even if the rotating valve disc is damaged, the medium will not leak. At the same time, after the sealing plate is closed, the rotating lever will move the impurities on the fixed valve disc into the through hole two, and they will be received by the sealing plate, ensuring that in the closed state, the cleaned impurities will not accumulate on the sealing surface formed between the fixed valve disc and the rotating valve disc, thereby preventing impurities from entering between the fixed valve disc and the rotating valve disc.

[0015] Preferably, the sealing slider is provided with a compression fillet at the position of the rotating shaft rod, and a compression inclined surface is provided at the lower end toward the reset spring side; the outer ring of the rotating lever is provided with a driving fillet, and the inner side is provided with a concave arc surface; when the inner wall of the concave arc surface is tangent to the two inner walls of the through hole, the compression fillet and the driving fillet are squeezed; the upper part of the vertical pressure block is provided with a pressure inclined surface.

[0016] In the above scheme, when the rotating lever is rotated to the closed position, the rotating lever will squeeze the compression fillet of the sealing slider by driving the fillet. The fillet extrusion can make the rotation and extrusion process smoother, and can reduce the wear between the rotating lever and the sealing slider, thereby extending the service life; the concave arc surface on the inner side of the rotating lever can better gather impurities when rotating, and when its rotating inner wall is tangent to the inner wall of the second through hole, the driving fillet squeezes the compression fillet to make the sealing plate close. At this time, the impurities can be swept onto the sealing plate, and the sealing plate can drive the impurities that fall onto the sealing plate to move toward the center position of the second through hole during the contraction process, thereby preventing impurities from entering between the fixed valve disc and the rotating valve disc and between the sealing plate and the fixed valve disc; the extrusion action between the compression inclined surface and the pressure inclined surface can realize the downward contraction action of the vertical pressure block, thereby driving the sealing plate to close the second through hole.

[0017] Preferably, the sealing plate includes a sealing push plate, a sealing clamp, a sealing spring and a closing spring; the sealing push plate is slidably installed in the connecting slide groove, the sealing push plate is a Y-shaped structure, and a push plate inclined surface is arranged on the upper end of the sealing push plate; a pushing inclined surface is arranged on the lower end of the vertical pressure block; the sealing clamp is installed in the closing slide groove; the sealing spring is connected between the sealing clamp and the closing slide groove; the closing spring is connected between the sealing clamp and the closing slide groove.

[0018] In the above scheme, the inclined surface of the sealing push plate is pushed and squeezed by the vertical pressure block to slide horizontally, so that the sealing splint contracts in the two circular directions of the through hole to complete the closing action and form a double seal to ensure that there will be no water leakage in the closed state; during the closing action, the sealing splint can push out impurities that have entered the closed chute to avoid accumulation of impurities in the closed chute.

[0019] Preferably, the exhaust mechanism includes an air cavity, an exhaust piston, an exhaust spring, an exhaust channel, an air jet groove, a connecting channel, an air jet rubber and an air suction component; the air cavity is arranged on the lower inner wall of the valve seat cavity; the exhaust piston is slidably installed in the air cavity, and a spherical surface is arranged at the tail of the exhaust piston; the rotating valve disc is provided with two compression arc surfaces; the connecting line of the two compression arc surfaces coincides with the connecting line of the centers of the two through holes; the exhaust spring is connected between the exhaust piston and the air cavity; the exhaust channel is connected to the air cavity; the air jet groove is arranged on the inner wall of the second through hole; the connecting channel is connected between the exhaust channel and the air jet groove; the air jet rubber is arranged in the air jet groove; and the air suction component is connected to the exhaust channel.

[0020] In the above scheme, when the rotating valve disc rotates to open, when through hole one and through hole two are not completely overlapped, the compression arc surface on the rotating valve disc is squeezed with the spherical surface at the tail of the exhaust piston, so that the exhaust piston compresses the air in the air cavity. The air in the air cavity flows through the exhaust channel, the connecting channel and the jet groove, squeezing the jet rubber to open the jet rubber and blow air to the upper end surface of the rotating valve disc, thereby avoiding the accumulation of impurities on the upper end surface of the rotating valve disc and preventing impurities from entering between the rotating valve disc and the fixed valve disc.

[0021] Preferably, the air intake component includes an air intake channel and an air intake valve; the air intake channel is connected to the exhaust channel; the air intake valve is arranged at the connection between the air intake channel and the exhaust channel, and the air intake cross-section of the air intake valve is a V-shaped opening facing the outside of the exhaust channel.

[0022] In the above scheme, when the compression arc surface no longer squeezes the spherical surface, the exhaust piston is reset under the action of the exhaust spring. At this time, the air pressure in the exhaust channel is lower than the external air pressure, the intake valve is deformed and opened, and air is inhaled from the intake channel to restore the gas in the air cavity to its initial state.

[0023] Preferably, the jet groove is arranged below the sealing plate and has a V-shaped cross section; the air outlet cross section of the jet rubber has a V-shaped opening toward one side of the jet groove.

[0024] In the above scheme, the compressed air enters the jet groove and squeezes the jet rubber, causing the closed jet rubber to deform and open. At this time, since the cross-section of the jet groove is a V-shaped structure, the ejected air is ejected toward the upper end surface of the rotating valve disc at an inclined angle, so that the impurities on the upper end surface of the rotating valve disc are more easily lifted by the ejected air and water flow, thereby leaving the upper end surface of the rotating valve disc. When the angle is ejected on the upper end surface of the rotating valve disc, the compressed air and water flow can be reflected, thereby driving the impurities to flow to the upper center position of the second through hole, thereby preventing the impurities from entering between the rotating valve disc and the fixed valve disc.

[0025] Preferably, a cleaning slope is provided at the bottom of the inner wall of the second through hole; the inclination angle of the cleaning slope is greater than 30 degrees and less than 70 degrees; and a guide slope is provided at the top of the inner wall of the first through hole, which is symmetrical with the cleaning slope and relative to the upper end surface of the rotating valve disc.

[0026] In the above scheme, when the cleaning slope rotates relatively between the fixed valve disc and the rotating valve disc, the cleaning slope can sweep away impurities on the upper end surface of the rotating valve disc, preventing impurities from entering between the fixed valve disc and the rotating valve disc; the angle of the cleaning slope is greater than degrees, so that impurities cannot accumulate on the cleaning slope, and the impurities on the upper end surface of the rotating valve disc can be cleaned faster in cooperation with the exhaust mechanism for each exhaust action, and impurities can be prevented from remaining at the lower end of the inner wall of the second through hole due to the jet angle when the exhaust mechanism is jetting; the cleaning slope is less than degrees, which can ensure the cleaning effect of the cleaning slope on impurities and make it easier to shovel out impurities; the diversion slope can enable the upward flowing water to drive impurities to flow toward the center, thereby preventing impurities from staying at the position where the diversion slope and the cleaning slope are in contact, making it difficult for impurities to enter between the fixed valve disc and the rotating valve disc, and the diversion slope can scrape off impurities on the lower end surface of the fixed valve disc when rotating, preventing impurities from adhering to the lower end surface of the fixed valve disc due to water pressure.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Compared with the existing rotary-cut flow regulating angle valve, the present invention provides an exhaust mechanism, which can spray air to the upper end surface of the rotating valve disc during the process of increasing the overlap between the through hole 1 and the through hole 2, so that impurities cannot enter the sealing surface between the rotating valve disc and the fixed valve disc during the process of rotating until the through hole 1 and the through hole 2 overlap; and the fixed valve disc and the rotating valve disc are set to be magnetic materials that attract each other, ensuring that the fixed valve disc and the rotating valve disc maintain a fit state during the process of water pressure changes and rotation in the valve seat cavity, further preventing impurities from entering the sealing surface between the fixed valve disc and the rotating valve disc, thereby avoiding rotation jamming, sealing surface wear and water seepage.

[0029] 2. The present invention sets a rotating lever. When through hole one and through hole two are rotated to the staggered position, the rotating lever gathers impurities on the surface of the fixed valve disc to the position of through hole two and squeezes the sealing mechanism. The sealing mechanism is pressurized to close through hole two and receive the impurities gathered on the valve stem to the center position of through hole two. On the one hand, impurities on the surface of the fixed valve disc are gathered to the center position of through hole two, so that when the angle valve is opened next time, the water flow can take away all the impurities, avoiding the accumulation of impurities in the valve seat cavity when the angle valve is used for a long time; on the other hand, after the sealing mechanism closes through hole two, the impurities can be received to avoid the accumulation of impurities on the upper end surface of the rotating valve disc, and secondary sealing can be performed after the angle valve is closed, thereby avoiding rotation jamming, sealing surface wear and water seepage.

[0030] 3. The present invention is provided with a cleaning slope and a guide slope. The cleaning slope cooperates with the V-shaped structure of the jet groove, so that the exhaust mechanism can clean without dead angles when cleaning the upper end surface of the rotating valve disc; the guide slope is used to scrape the lower surface of the fixed valve disc, so that in the process from the staggered position to the overlapping position of the through hole 1 and the through hole 2, it can be ensured that there is no impurity attached to the lower surface of the fixed valve disc, and after the through hole 1 and the through hole 2 are completely overlapped, the upward flowing water can drive the impurities to flow toward the center through the guide slope, thereby preventing impurities from staying at the position where the guide slope and the cleaning slope are in contact, and then preventing impurities from entering the sealing surface between the fixed valve disc and the rotating valve disc, avoiding rotation blocking, sealing surface wear and water seepage. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is the overall structure diagram of the present invention;

[0033] Figure 2 It is a cross-sectional view of the internal structure of the present invention;

[0034] Figure 3 It is a schematic diagram of the position relationship between the rotating lever and the through hole of the present invention;

[0035] Figure 4 It is a cross-sectional view of the overall structure of the present invention;

[0036] Figure 5 for Figure 2 A magnified view of the structure at center;

[0037] Figure 6 for Figure 4A magnified view of the structure at B in the middle;

[0038] Figure 7 It is a schematic diagram of the sealing plate structure of the present invention;

[0039] Figure 8 for Figure 4 A magnified view of the structure at C in the middle;

[0040] Fig. 9 for Figure 4 A magnified view of the structure at D in the middle;

[0041] Fig.10 for Fig. 9 Enlarged view of the structure at E in the middle;

[0042] Fig.11 It is a position relationship diagram of the inner concave arc surface and the second through hole when the compression fillet and the driving fillet come into contact;

[0043] In the figure: 1. Valve seat cavity; 2. Inflow channel; 3. Outflow channel; 4. Valve stem; 41. Rotating shaft rod; 42. Rotating lever; 421. Driving fillet; 422. Concave arc surface; 43. Handle; 5. Fixed valve disc; 51. Through hole 2; 511. Cleaning slope; 6. Rotating valve disc; 61. Through hole 1; 611. Diversion slope; 62. Compression arc surface; 7. Sealing mechanism; 71. Sealing slide; 72. Sealing slider; 721. Compression fillet; 722. Compression inclined surface; 73. Reset spring; 74. Pressing block slide; 75. Vertical pressing block; 751. Pressure inclined surface; 752. Push inclined surface; 76. Vertical spring; 77. Closing slide; 78. Connecting slide; 79. Sealing plate; 791. Sealing push plate; 7911. Push plate inclined surface; 792. Sealing splint; 793. Sealing spring; 794. Closing spring; 8. Exhaust mechanism; 81. Air cavity; 82. Exhaust piston; 821. Spherical surface; 83. Exhaust spring; 84. Exhaust channel; 85. Jet slot; 86. Connecting channel; 87. Jet rubber; 88. Intake assembly; 881. Intake channel; 882. Intake valve. DETAILED DESCRIPTION

[0044] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0045] See also Figures 1 to 10 The present invention provides a rotary cutting flow regulating angle valve, and the technical solution is as follows:

[0046] As a specific embodiment of the present invention, refer to Figure 1 and Figure 2A rotary cut flow regulating angle valve, comprising a valve seat cavity 1, an inflow channel 2 and an outflow channel 3, and also comprising a valve stem 4, a fixed valve disc 5, a rotating valve disc 6, a sealing mechanism 7 and an exhaust mechanism 8; the valve stem 4 is rotatably mounted inside the valve seat cavity 1; the fixed valve disc 5 is mounted at the lower part of the valve seat cavity 1, and two through holes 2 51 are provided on the fixed valve disc 5; the rotating valve disc 6 is rotatably mounted below the fixed valve disc 5, and two through holes 1 61 are provided on the rotating valve disc 6; the sealing mechanism 7 is connected to the fixed valve disc 5; the exhaust mechanism 8 is connected to the valve seat cavity 1; the rotating valve stem 4 drives the rotating valve disc 6 to rotate, and the rotating valve disc 6 rotates until the through hole 1 61 is aligned with the through hole 1 When the through hole 1 61 and the through hole 2 51 overlap, the rotating valve disc 6 squeezes the exhaust mechanism 8, and the exhaust mechanism 8 is pressurized to spray air to the upper end surface of the rotating valve disc 6 and guide the impurities to the position above the center of the through hole 2 51; the valve stem 4 is rotated to rotate the rotating valve disc 6 to the staggered position of the through hole 1 61 and the through hole 2 51. During the rotation, the valve stem 4 gathers the impurities on the surface of the fixed valve disc 5 to the position of the through hole 2 51 and squeezes the sealing mechanism 7. The sealing mechanism 7 is pressurized to close the through hole 2 51 and receive the impurities gathered by the valve stem 4 to the center of the through hole 2 51, so that when the through hole 1 61 and the through hole 2 51 overlap next time, the water flow can flush away the impurities at one time, thereby reducing the accumulation of impurities in the valve seat cavity 1.

[0047] As a specific embodiment of the present invention, refer to Figure 2 and Figure 3The valve stem 4 includes a rotating shaft rod 41, a rotating lever 42 and a handle 43; the rotating shaft rod 41 is connected to the rotating valve disc 6; the rotating lever 42 is connected to the rotating shaft rod 41, and the rotating lever 42 is arranged above the fixed valve disc 5 and the line connecting the two outer end points is perpendicular to the line connecting the centers of the two through holes 1 61; the handle 43 is connected to the upper end of the rotating shaft rod 41; the diameters of the through hole 1 61 and the through hole 2 51 are equal. By rotating the rotating shaft rod 41, the rotating shaft rod 41 drives the rotating valve disc 6 to rotate, so that the through hole 1 61 on the rotating valve disc 6 and the through hole 2 51 on the fixed valve disc 5 are overlapped, and linear flow regulation can be performed according to the overlap between the two. When the rotating shaft rod 41 rotates, the rotating lever 42 will rotate at the same time. The rotating lever 42 rotates to remove impurities above the fixed valve disc 5, and the line connecting the two outer end points of the rotating lever 42 is perpendicular to the line connecting the centers of the two through holes 1 61, so that the line connecting the two outer end points of the rotating lever 42 is perpendicular to the line connecting the centers of the two through holes 2 51 in the open state, and the line connecting the two outer end points of the rotating lever 42 is perpendicular to the line connecting the centers of the two through holes 2 51 in the closed state. Overlap, so that in the process of the flow regulating angle valve changing from an open state to a closed state, the rotating lever 42 can gather some impurities above the fixed valve disc 5 into the second through hole 51 through a sweeping action, so that when it is opened next time, the water flow can flush away the impurities in the second through hole 51 at one time, avoiding the accumulation of impurities in the valve seat cavity 1 and causing blockage; here, the valve seat cavity 1 can be set to a transparent material, so that when the handle 43 is turned, the position reached by the rotating lever 42 and the through hole 1 61 and the through hole 2 51 can be better observed, or a scale can be set under the handle 43 to know the positions of the through hole 1 61, the through hole 2 51 and the rotating lever 42, so as to better perform switching and adjust the flow.

[0048] As a specific embodiment of the present invention, refer to Figure 2 and Figure 4, the rotating valve disc 6 is set to a magnetic material; the fixed valve disc 5 is set to a material that is attracted to the rotating valve disc 6, and the size of the magnetic force will not affect the normal relative rotation of the rotating valve disc 6 and the fixed valve disc 5, and the lower end surface of the fixed valve disc 5 is fitted with the upper end surface of the rotating valve disc 6, so that when wear occurs between the two, they can always maintain a fitting state, thereby ensuring that normal work can still be performed after wear occurs, and flow control will not be affected; and after it is set to a magnetic material, after rotating to the required overlap between the through hole 1 61 and the through hole 2 51, it is not easily affected by the water pressure under the action of the magnetic force to cause the rotating valve disc 6 and the fixed valve disc 5 to rotate, so that after adjusting to the required output flow state, the output flow state is maintained, For flow regulation, the lower end faces of the fixed valve disc 5 and the rotating valve disc 6 are smoothed, and the surface roughness is set to Ra3.2 to reduce the wear of the two during relative rotation and extend the service life. The fixed valve disc 5 is fixedly installed. After wear occurs between the rotating valve disc 6 and the fixed valve disc 5, the rotating valve disc 6 can keep the rotating valve disc 6 in contact with the fixed valve disc 5 under the action of magnetic force. At this time, the rotating valve disc 6 drives the rotating shaft rod 41 to move upward by a micro-distance. In the initial state of the rotating shaft rod 41, a certain buffer distance is reserved so that when the upper end face of the rotating valve disc 6 is worn, the rotating valve disc 6 and the valve stem 4 as a whole can move upward by a micro-distance, ensuring that the upper end face of the rotating valve disc 6 is in contact with the lower end face of the fixed valve disc 5, thereby extending the service life.

[0049] As a specific embodiment of the present invention, refer to Figure 5 , Figure 6 , Fig.11The sealing mechanism 7 includes a sealing groove 71, a sealing slider 72, a return spring 73, a pressure block groove 74, a vertical pressure block 75, a vertical spring 76, a closing groove 77, a connecting groove 78 and a sealing plate 79; the sealing groove 71 is symmetrically arranged on the side wall of the valve seat cavity 1; the sealing slider 72 is slidably installed in the sealing groove 71; the return spring 73 is connected between the sealing slider 72 and the sealing groove 71; the pressure block groove 74 is arranged below the sealing groove 71; the vertical pressure block 75 is slidably installed in the pressure block groove 74; the vertical spring 76 is connected between the pressure block groove 74 and the vertical pressure block 75; the closing groove 77 is arranged in the fixed valve disc 5; the connecting groove 78 is arranged between the closing groove 77 and the pressure block groove 74; the sealing plate 79 is installed in the closing groove 77. After the rotating lever 42 is rotated to the sealing slider 72 position, the sealing slider 72 is squeezed to compress the return spring 73. At this time, the sealing slider 72 shrinks into the sealing slide groove 71 and compresses the vertical pressure block 75 downward, so that the vertical pressure block 75 pushes the sealing plate 79 to seal the through hole 51. At this time, the through hole 51 is in a sealed state, ensuring that when it is in a closed state, even if the rotating valve disc 6 is damaged, the medium will not leak. At the same time, after the sealing plate 79 is closed, the rotating lever 42 will move the impurities on the fixed valve disc 5 into the through hole 51, and they will be received by the sealing plate 79 to ensure that in the closed state, the cleaned impurities will not accumulate on the sealing surface formed between the fixed valve disc 5 and the rotating valve disc 6, thereby preventing impurities from entering between the fixed valve disc 5 and the rotating valve disc 6.

[0050] As a specific embodiment of the present invention, refer to Figure 5 , Figure 6 and Fig.11The sealing slider 72 is provided with a compression fillet 721 at the position facing the rotating shaft rod 41, and a compression inclined surface 722 is provided at the lower end facing the reset spring 73; the outer ring of the rotating lever 42 is provided with a driving fillet 421, and the inner side is provided with an inner concave arc surface 422; when the inner wall of the inner concave arc surface 422 is tangent to the inner wall of the second through hole 51, the compression fillet 721 and the driving fillet 421 are squeezed; the upper part of the vertical pressure block 75 is provided with a compression inclined surface 751. When the rotating lever 42 is rotated to the closed position, the rotating lever 42 will squeeze the compression fillet 721 of the sealing slider 72 by driving the fillet 421. The fillet extrusion can make the rotation and extrusion process smoother, and can reduce the wear between the rotating lever 42 and the sealing slider 72, thereby extending the service life; the concave arc surface 422 on the inner side of the rotating lever 42 can better gather impurities when rotating, and when its rotating inner wall is tangent to the inner wall of the second through hole 51, the driving fillet 421 squeezes the compression fillet 721 to make the sealing plate 79 close. At this time, the impurities can be swept onto the sealing plate 79, and the sealing plate 79 can drive the impurities that fall on the sealing plate 79 to move toward the center position of the second through hole 51 during the contraction process, thereby preventing the impurities from entering between the fixed valve disc 5 and the rotating valve disc 6 and between the sealing plate 79 and the fixed valve disc 5; the squeezing action between the compression inclined surface 722 and the pressure inclined surface 751 can realize the downward contraction action of the vertical pressing block 75, thereby driving the sealing plate 79 to close the second through hole 51.

[0051] As a specific embodiment of the present invention, refer to Figure 6 and Figure 7The sealing plate 79 includes a sealing push plate 791, a sealing clamping plate 792, a sealing spring 793 and a closing spring 794; the sealing push plate 791 is slidably installed in the connecting slide groove 78, and the sealing push plate 791 is a Y-shaped structure, so that the sealing push plate 791 can clamp the sealing clamping plate 792 under a short-distance displacement, and a push plate inclined surface 7911 is provided at the upper end of the sealing push plate 791; the lower end of the vertical pressing block 75 is provided with a pushing inclined surface 752; the sealing clamping plate 792 is installed in the closing slide groove 77; The sealing spring 793 is connected between the sealing clamping plate 792 and the closing chute 77; the closing spring 794 is connected between the sealing clamping plate 792 and the closing chute 77. Under the action of the sealing spring 793 and the closing spring 794, the sealing clamping plate 792 will not move randomly in the unclosed state, avoiding affecting the medium flow, and can realize automatic opening and closing under the action of the restoring force of the sealing spring 793 and the closing spring 794 when the angle valve is opened, thereby improving the degree of automation of the mechanism. The push plate inclined surface 7911 of the sealing push plate 791 is squeezed by the push inclined surface 752 of the vertical pressure block 75 to slide horizontally, so that the sealing clamping plate 792 shrinks in the circular direction of the through hole 2 51, completing the closing action, forming a double seal, and ensuring that there will be no water leakage in the closed state; during the closing action, the sealing clamping plate 792 can push out impurities entering the closing chute 77 to avoid the accumulation of impurities in the closing chute 77.

[0052] As a specific embodiment of the present invention, refer to Figure 8 and Fig. 9The exhaust mechanism 8 includes an air cavity 81, an exhaust piston 82, an exhaust spring 83, an exhaust channel 84, an air jet groove 85, a connecting channel 86, an air jet rubber 87 and an air suction component 88; the air cavity 81 is opened on the inner wall of the lower part of the valve seat cavity 1, and the amount of gas discharged by the exhaust mechanism 8 can be controlled by adjusting the diameter of the air cavity 81. By increasing the diameter of the air cavity 81, the amount of discharged gas increases, thereby ensuring the effect of jetting to remove impurities; the exhaust piston 82 is slidably installed in the air cavity 81, and the tail of the exhaust piston 82 A spherical surface 821 is provided; the rotating valve disc 6 is provided with two compression arc surfaces 62; the line connecting the two compression arc surfaces 62 coincides with the line connecting the centers of the two through holes 61; the exhaust spring 83 is connected between the exhaust piston 82 and the air cavity 81; the exhaust channel 84 is connected to the air cavity 81; the jet groove 85 is provided on the inner wall of the through hole 2 51; the connecting channel 86 is connected between the exhaust channel 84 and the jet groove 85; the jet rubber 87 is provided in the jet groove 85; the suction component 88 is connected to the exhaust channel 84. When the rotating valve disc 6 rotates to open, when the through hole 1 61 and the through hole 2 51 are not completely overlapped, the compression arc surface 62 on the rotating valve disc 6 is squeezed with the spherical surface 821 at the tail of the exhaust piston 82, so that the exhaust piston 82 compresses the air in the air cavity 81. The air in the air cavity 81 flows through the exhaust channel 84, the connecting channel 86 and the air injection groove 85, and squeezes the air injection rubber 87 to open the air injection rubber 87 and blow air to the upper end surface of the rotating valve disc 6, thereby avoiding the accumulation of impurities on the upper end surface of the rotating valve disc 6 and preventing the impurities from entering between the rotating valve disc 6 and the fixed valve disc 5.

[0053] As a specific embodiment of the present invention, refer to Figure 8 and Fig. 9 The air intake assembly 88 includes an air intake channel 881 and an air intake valve 882; the air intake channel 881 is connected to the exhaust channel 84; the air intake valve 882 is arranged at the connection between the air intake channel 881 and the exhaust channel 84, and the air intake cross section of the air intake valve 882 is a V-shaped opening facing the outside of the exhaust channel 84. When the compression arc surface 62 no longer compresses the spherical surface 821, the exhaust piston 82 is reset under the action of the exhaust spring 83. At this time, the air pressure in the exhaust channel 84 is lower than the external air pressure, and the air intake valve 882 is deformed and opened, and air is sucked from the air intake channel 881 to restore the gas in the air cavity 81 to the initial state, ensuring that the exhaust mechanism 8 can continue to work and achieve the expected effect of removing impurities.

[0054] As a specific embodiment of the present invention, refer to Fig. 9 and Fig.10The jet groove 85 is arranged below the sealing plate 79, and has a V-shaped cross section; the outlet cross section of the jet rubber 87 is a V-shaped structure with an opening facing the jet groove 85. After the compressed air enters the jet groove 85, it squeezes the jet rubber 87, causing the closed jet rubber 87 to deform and open. At this time, since the jet groove 85 has a V-shaped cross section, the ejected air is ejected at an inclined angle to the upper end surface of the rotating valve disc 6, so that the impurities on the upper end surface of the rotating valve disc 6 are more easily lifted by the ejected air and water flow, thereby leaving the upper end surface of the rotating valve disc 6. When the angle is ejected on the upper end surface of the rotating valve disc 6, the compressed air and water flow can be reflected, thereby driving the impurities to flow to the central upper position of the through hole 2 51, thereby preventing the impurities from entering between the rotating valve disc 6 and the fixed valve disc 5.

[0055] As a specific embodiment of the present invention, refer to Fig.10 , a cleaning slope 511 is provided at the bottom of the inner wall of the second through hole 51; the inclination angle of the cleaning slope 511 is greater than 30 degrees and less than 70 degrees; a guide slope 611 is provided at the top of the inner wall of the first through hole 61, which is symmetrical with the cleaning slope 511 and the upper end surface of the rotating valve disc 6. When the cleaning slope 511 rotates relatively between the fixed valve disc 5 and the rotating valve disc 6, the cleaning slope 511 can sweep away impurities on the upper end surface of the rotating valve disc 6 to prevent impurities from entering between the fixed valve disc 5 and the rotating valve disc 6; the angle of the cleaning slope 511 is greater than 30 degrees, so that impurities cannot accumulate on the cleaning slope 511, and can cooperate with the exhaust mechanism 8 to clean the impurities on the upper end surface of the rotating valve disc 6 faster each time it exhausts, and prevents the exhaust mechanism 8 from having impurities at the bottom of the inner wall of the second through hole 51 due to the jet angle when jetting. impurities remain; the cleaning slope 511 is less than 70 degrees, which can ensure the cleaning effect of the cleaning slope 511 on impurities and make it easier to shovel out impurities; the guide slope 611 can make the upward flowing water drive the impurities to flow toward the center, thereby avoiding the impurities staying at the position where the guide slope 611 and the cleaning slope 511 fit together, making it difficult for the impurities to enter between the fixed valve disc 5 and the rotating valve disc 6, and the guide slope 611 can scrape off the impurities on the lower end surface of the fixed valve disc 5 when rotating, avoiding the impurities from adhering to the lower end surface of the fixed valve disc 5 due to water pressure.

[0056] Working process: when the rotating valve disc 6 rotates to the overlapping position of the through hole 1 61 and the through hole 2 51, the exhaust mechanism 8 is squeezed by the rotating valve disc 6, and the air is sprayed to the upper end surface of the rotating valve disc 6 so that the impurities are taken away by the water flow; the rotating valve disc 6 rotates to the staggered position of the through hole 1 61 and the through hole 2 51, and during the rotation, the rotating lever 42 gathers the impurities on the surface of the fixed valve disc 5 to the position of the through hole 2 51 and squeezes the sealing mechanism 7, and the sealing mechanism 7 is pressurized to close the through hole 2 51 and take over the impurities gathered by the rotating lever 42, so that the impurities will not settle into the sealing surface, and when the through hole 1 61 and the through hole 2 51 overlap next time, the water flow can wash away the impurities at one time, thereby reducing the accumulation of impurities in the valve seat cavity 1.

[0057] Specifically, the rotating handle 43 drives the rotating shaft rod 41 to rotate, and the rotating shaft rod 41 drives the rotating valve disc 6 to rotate. When the through hole 1 61 on the rotating valve disc 6 rotates to a position where it coincides with the through hole 2 51 on the fixed valve disc 5, the compression arc surface 62 on the rotating valve disc 6 squeezes the spherical surface 821 at the tail of the exhaust piston 82, so that the exhaust piston 82 compresses the gas in the air cavity 81. After the gas is compressed, the jet rubber 87 is deformed and opened. At this time, the ejected gas causes the impurities on the upper end surface of the rotating valve disc 6 to be lifted toward the center of the through hole 2 51, so that the impurities are Driven by the water flow, the water leaves the upper end surface of the rotating valve disc 6 and flows out of the angle valve from the outflow channel 3 along the water flow; during the rotation of the rotating valve disc 6, the cleaning slope 511 scrapes off the impurities accumulated at the overlapping position of the upper end surface of the rotating valve disc 6 and the second through hole 51 of the fixed valve disc 5, and the guide slope 611 scrapes off the impurities on the lower end surface of the fixed valve disc 5, and after the through hole 1 61 and the through hole 2 51 completely overlap, the guide slope 611 can make the upward flowing water drive the impurities to flow toward the center, thereby avoiding the impurities staying at the position where the guide slope 611 and the cleaning slope 511 are in contact.

[0058] The rotating valve disc 6 rotates so that the through hole 1 61 on the rotating valve disc 6 rotates to be completely staggered with the through hole 2 51 on the fixed valve disc 5, and when the driving fillet 421 on the rotating lever 42 is in contact with the compression fillet 721 of the sealing slider 72, the inner concave arc surface 422 of the rotating lever 42 gathers impurities on the surface of the fixed valve disc 5 and sweeps them toward the position of the through hole 2 51; when the driving fillet 421 presses the compression fillet 721, the sealing slider 72 slides into the sealing slide groove 71, and squeezes between the compression inclined surface 722 and the pressure inclined surface 751, so that the vertical pressing block 75 slides downward, and the pushing inclined surface 752 of the vertical pressing block 75 presses the push plate inclined surface 7911, so that the sealing push plate 791 slides in the connecting slide groove 78, and clamps the two sealing clamping plates 792. Tighten to complete the closing process of the through hole 2 51. During the clamping process of the two sealing clamping plates 792, since the through hole 1 61 and the through hole 2 51 are completely staggered, the impurities swept to the through hole 2 51 by the rotating lever 42 will settle to the upper end surface of the sealing clamping plate 792 under the action of gravity, so that when the through hole 1 61 and the through hole 2 51 overlap next time, the sealing clamping plate 792 is opened, and the impurities begin to settle downward. Since the sedimentation process is slow, the water flow has arrived before the impurities reach the upper end surface of the rotating valve disc 6, and the water flow can flush away the impurities at one time (if there are impurities settled to the upper end surface of the rotating valve disc 6, they will also be blown away by the exhaust mechanism 8), reducing the accumulation of impurities in the valve seat cavity 1; at this time, the through hole 1 61 and the through hole 2 51 are completely staggered, and the sealing clamping plate 792 is clamped to achieve the purpose of secondary sealing, and the angle valve is completely closed at this time.

[0059] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected, and the scope of the present invention to be protected is defined by the attached claims and their equivalents.

Claims

1. A rotary cut flow regulating angle valve, comprising a valve seat cavity (1), an inflow channel (2) and an outflow channel (3), characterized in that: The valve stem (4) further comprises a valve stem (4), a fixed valve disc (5), a rotating valve disc (6), a sealing mechanism (7) and an exhaust mechanism (8); the valve stem (4) is rotatably mounted inside the valve seat cavity (1); the fixed valve disc (5) is mounted at the lower part of the valve seat cavity (1), and the fixed valve disc (5) is provided with two second through holes (51); the rotating valve disc (6) is rotatably mounted below the fixed valve disc (5), and the rotating valve disc (6) is provided with two first through holes (61); the sealing mechanism (7) is connected to the fixed valve disc (5); the exhaust mechanism (8) is connected to the valve seat cavity (1); the rotating valve stem (4) drives the rotating valve disc (6) to rotate, and the rotating valve disc (6) is rotated. ) is rotated until the through hole 1 (61) and the through hole 2 (51) overlap, the rotating valve disc (6) squeezes the exhaust mechanism (8), the exhaust mechanism (8) is pressurized to spray air on the upper end surface of the rotating valve disc (6) and guide the impurities to the position above the center of the through hole 2 (51); the valve stem (4) is rotated to rotate the rotating valve disc (6) to a position where the through hole 1 (61) and the through hole 2 (51) are staggered, during the rotation process, the valve stem (4) gathers impurities on the surface of the fixed valve disc (5) to the position of the through hole 2 (51) and squeezes the sealing mechanism (7), the sealing mechanism (7) is pressurized to close the through hole 2 (51) and receive the impurities gathered by the valve stem (4) to the position of the center of the through hole 2 (51); The valve stem (4) comprises a rotating shaft rod (41), a rotating lever (42) and a handle (43); the rotating shaft rod (41) is connected to the rotating valve disc (6); the rotating lever (42) is connected to the rotating shaft rod (41), the rotating lever (42) is arranged above the fixed valve disc (5) and the line connecting the two outer end points is perpendicular to the line connecting the centers of the two through holes (61); the handle (43) is connected to the upper end of the rotating shaft rod (41); the diameters of the through hole (61) and the through hole (51) are equal; The sealing mechanism (7) comprises a sealing groove (71), a sealing slider (72), a return spring (73), a pressure block groove (74), a vertical pressure block (75), a vertical spring (76), a closing groove (77), a connecting groove (78) and a sealing plate (79); the sealing groove (71) is symmetrically arranged on the side wall of the valve seat cavity (1); the sealing slider (72) is slidably installed in the sealing groove (71); the return spring (73) is connected to the sealing slider (72) and the sealing slider. The pressure block slide groove (74) is provided below the sealing slide groove (71); the vertical pressure block (75) is slidably mounted in the pressure block slide groove (74); the vertical spring (76) is connected between the pressure block slide groove (74) and the vertical pressure block (75); the closing slide groove (77) is provided in the fixed valve disc (5); the connecting slide groove (78) is provided between the closing slide groove (77) and the pressure block slide groove (74); the sealing plate (79) is mounted in the closing slide groove (77); The sealing slider (72) is provided with a compression fillet (721) at a position facing the rotating shaft rod (41), and a compression inclined surface (722) is provided at the lower end facing the return spring (73); the outer ring of the rotating lever (42) is provided with a driving fillet (421), and the inner side is provided with an inner concave arc surface (422); when the inner wall of the inner concave arc surface (422) is tangent to the inner wall of the second through hole (51), the compression fillet (721) and the driving fillet (421) are squeezed; the upper part of the vertical pressing block (75) is provided with a compression inclined surface (751); The sealing plate (79) comprises a sealing push plate (791), a sealing clamp (792), a sealing spring (793) and a closing spring (794); the sealing push plate (791) is slidably mounted in the connecting slide groove (78); the sealing push plate (791) is a Y-shaped structure; the upper end of the sealing push plate (791) is provided with a push plate inclined surface (7911); the lower end of the vertical pressing block (75) is provided with a pushing inclined surface (752); the sealing clamp (792) is mounted in the closing slide groove (77); the sealing spring (793) is connected between the sealing clamp (792) and the closing slide groove (77); the closing spring (794) is connected between the sealing clamp (792) and the closing slide groove (77); The exhaust mechanism (8) comprises an air cavity (81), an exhaust piston (82), an exhaust spring (83), an exhaust channel (84), an air jet groove (85), a connecting channel (86), an air jet rubber (87) and an air suction assembly (88); the air cavity (81) is provided on the lower inner wall of the valve seat cavity (1); the exhaust piston (82) is slidably mounted in the air cavity (81), and a spherical surface (821) is provided at the rear of the exhaust piston (82); the rotating valve disc (6) is provided with two compression arc surfaces (62); the two compression arc surfaces (62) are provided with a plurality of compression arc surfaces (63); the two compression arc surfaces (63) are provided with a plurality of compression arc surfaces (64); the two compression arc surfaces (64) are provided with a plurality of compression arc surfaces (65); the two compression arc surfaces (65) are provided with a plurality of compression arc surfaces (66); the two compression arc surfaces (66) are provided with a plurality of compression arc surfaces (66); the two compression arc surfaces (63) are provided with a plurality of compression arc surfaces (65 ... The line connecting the arc surface (62) coincides with the line connecting the centers of the two through holes (61); the exhaust spring (83) is connected between the exhaust piston (82) and the air cavity (81); the exhaust passage (84) is connected to the air cavity (81); the jet groove (85) is provided on the inner wall of the through hole (51); the connecting passage (86) is connected between the exhaust passage (84) and the jet groove (85); the jet rubber (87) is arranged in the jet groove (85); the air suction assembly (88) is connected to the exhaust passage (84); The air intake assembly (88) comprises an air intake channel (881) and an air intake valve (882); the air intake channel (881) is connected to the exhaust channel (84); the air intake valve (882) is arranged at the connection between the air intake channel (881) and the exhaust channel (84), and the air intake cross section of the air intake valve (882) is a V-shaped opening facing the outside of the exhaust channel (84); The rotating valve disc (6) is configured to be made of a magnetic material; the fixed valve disc (5) is configured to be made of a material that is attracted to the rotating valve disc (6); the lower end surface of the fixed valve disc (5) is mounted in a fitted manner with the upper end surface of the rotating valve disc (6).

2. The rotary cut flow regulating angle valve according to claim 1, characterized in that: The jet groove (85) is arranged below the sealing plate (79) and has a V-shaped cross section; the jet rubber (87) has a V-shaped cross section with the air outlet opening facing one side of the jet groove (85).

3. The rotary cut flow regulating angle valve according to claim 1, characterized in that: A cleaning slope (511) is provided at the bottom of the inner wall of the second through hole (51); the inclination angle of the cleaning slope (511) is greater than 30 degrees and less than 70 degrees; and a flow guide slope (611) is provided at the top of the inner wall of the first through hole (61) and is symmetrical with the cleaning slope (511) and relative to the upper end surface of the rotating valve disc (6).

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