Flow-controllable water-saving valve

Abstract

The invention belongs to the technical field of valves, and particularly relates to a flow-controllable water-saving valve which comprises a valve body, a filter screen for filtering silt is arranged in the valve body, a buffer frame is arranged in the filter screen, a guide piece capable of providing buffering is arranged on the inner wall of the buffer frame, and a sealing compensation ring is arranged at the position, in the valve body, of one end of the buffer frame. A sealing compensation ring is arranged in the valve body, a valve element is rotationally arranged in the position, in the valve body, of one side of the sealing compensation ring, a transmission rod is arranged at one end of the top of the valve element, a fixing rod is rotationally arranged in the transmission rod, and a flow dividing block is rotationally arranged on the outer surface of the fixing rod. The problem that the blocking effect of a valve element is affected due to the fact that the valve element is prone to generating holes after being abraded by silt is solved, a rotating transmission rod can be detected by arranging a movable block, a second pressure sensor and other structures, and the problem that damage to a transmission shaft cannot be found in time is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of valves, and in particular relates to a flow-controllable water-saving valve. Background Art

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and adjust and control the parameters of the conveying medium. According to their functions, they can be divided into shut-off valves, check valves, regulating valves, etc. Among them, the V-type ball valve is a specially designed regulating ball valve. Its core function and advantage lies in its excellent flow regulation capability and adaptability to harsh working conditions such as those containing solid particles or fibers.

[0003] Patent No. CN221800636U discloses a flow-controllable valve, including a valve body, wherein a slider is slidably connected inside the valve body, and the top of the slider is connected to a threaded rod through a second bearing, and a driving mechanism is installed on the valve body. The driving mechanism includes a driving box welded on the top of the valve body, a driving chamber is opened inside the driving box, a worm gear is provided inside the driving chamber, one end of the threaded rod extends into the driving chamber and is threadedly connected to the worm gear, and an end of the driving chamber away from the worm gear is movably connected to a worm, and one end of the worm gear is connected to the output end of the driving motor, thereby driving the worm gear to rotate in the driving chamber, and the worm gear matches the worm gear, so that the worm gear rotates in the driving chamber, and the internal thread on the worm gear matches the external thread on the outer surface of the threaded rod, further driving the threaded rod to rotate, thereby causing the slider to slide in the slide groove, thereby realizing the regulation of the flow of the valve body.

[0004] In the prior art, the flow of the valve body can be adjusted by setting a slider and a slide groove, but the overall use still has the following problems: First, the existing V-shaped ball valve can achieve flow regulation compared to traditional ball valves, but the incomplete spherical valve core also makes its overall strength lower. However, most existing V-shaped ball valves lack a protective structure, so when the water flows rapidly, the mud and sand carried in the water will continuously impact the valve core. The valve core is easily worn by the mud and sand to form holes, which affects the blocking effect of the valve core and thus shortens the service life of the valve core. Secondly, after long-term use, the transmission shaft of the existing V-type ball valve will be deformed due to the impact of mud and sand and the corrosion of liquid. After the ball valve rotates, the transmission shaft will be unevenly stressed, causing the ball valve to shake. However, the valve core is arranged inside the valve body, and the existing ball valve cannot effectively monitor the shaking of the ball valve, affecting maintenance efficiency. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the present invention provides a flow-controllable water-saving valve. By arranging a buffer frame, a filter net and a support frame, the liquid can be filtered, which solves the problem that the valve core is easily prone to holes after being worn by mud and sand, thereby affecting the blocking effect of the valve core. By arranging structures such as a movable block and a second pressure sensor, the rotating transmission rod can be detected, solving the problem that the transmission shaft cannot be discovered in time when it is damaged.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a flow-controllable water-saving valve, comprising a valve body, a filter screen for filtering mud and sand is provided inside the valve body, a buffer rack is provided inside the filter screen, a plurality of guide plates capable of providing buffering are provided on the inner wall of the buffer rack, a plurality of buffer rings are provided on the inner wall of the buffer rack in a straight line direction, the buffer rings are in a bent V-shape capable of buffering water flow, a sealing compensation ring is provided at one end of the buffer rack inside the valve body, a valve core is rotatably provided at one side of the sealing compensation ring inside the valve body, a transmission rod is provided at one end of the top of the valve core, a fixed rod is rotatably provided inside the transmission rod, a diverter block is rotatably provided on the outer surface of the fixed rod, and a second pressure sensor capable of detecting shaking is provided at one end of the fixed rod inside the transmission rod.

[0007] Preferably, the buffer ring includes an inclined portion at one end arranged on the inner circular surface of the buffer frame, the inclined portion is inclined upward toward the valve core side, a downwardly inclined guide plate is provided on one side of the inclined portion, a bending portion is formed between the guide plate and the inclined portion, and a blade is provided at one end of the buffer frame.

[0008] Preferably, the outer surface of the filter screen is provided with a plurality of filter holes, and the plurality of filter holes are in a trumpet-shaped shape with a narrow inner side and a wide outer side.

[0009] Preferably, a support frame is provided on the outer surface of the buffer frame, and a plurality of water outlet holes are provided inside the support frame. The plurality of water outlet holes are inclined as a whole. A water guide ring is provided at one end of the support frame close to the sealing compensation ring, and the water guide ring is in a contracted shape with a wide outside and a narrow inside.

[0010] Preferably, a flange is provided at the water inlet of the valve body, a second sealing ring is provided between the flange and the buffer rack, a plurality of first pressure sensors are provided on the outer surface of the valve body, and the detection ends of the plurality of first pressure sensors pass through the flange and abut against the outer surface of the buffer rack.

[0011] Preferably, the outer surface of the diverter block is provided with a plurality of spiral-shaped protrusions.

[0012] Preferably, an installation groove is provided inside the transmission rod, and the installation groove is rotatably connected to the fixed rod, and a movable block is slidingly provided inside the fixed rod, one end of the movable block abuts against the inner wall of the installation groove, and the other end of the movable block is provided with a striker rod, and a return spring is provided outside the striker rod, and one end of the return spring is fixedly connected to the inner wall of the fixed rod.

[0013] Preferably, a rotating shaft is provided at one end of the bottom of the valve core, the rotating shaft is rotatably connected to the valve body, and a first sealing ring is provided between the rotating shaft and the valve body.

[0014] Preferably, the fixing rod passes through the rotating shaft and extends to the outside of the valve body, and a wire passage cavity is provided inside the fixing rod.

[0015] Preferably, a pneumatic actuator is provided on the top end face of the valve body, the output end of the pneumatic actuator is connected to the transmission rod in a transmission cooperation manner, and a positioner is provided on the top of the pneumatic actuator, and the positioner is connected to one end of the transmission rod in a transmission cooperation manner.

[0016] In summary, compared with the prior art, the beneficial effects of this solution are: (1) The present invention can filter the liquid by providing a buffer rack, a filter screen, a support rack and other structures, reduce the amount of sediment in the liquid, prevent the sediment from eroding the valve core, and thus increase the service life of the valve core. The provision of a flange and a buffer rack can facilitate the replacement and cleaning of the filter screen, thereby improving the stability of the device; (2) The present invention provides an inclined portion, a guide vane, a blade, a water outlet, and other structures, so that the inclined portion and the blade can guide the water flow, thereby preventing the water flow carrying sediment from directly impacting the inner wall of the filter screen, thereby improving the service life of the filter screen. By providing a support frame, the water flow can flow toward the center, preventing the water flow from adhering to the inner wall of the valve body, thereby damaging the relatively weak shear portion of the valve core, and further improving the service life of the valve core; (3) The present invention can detect the rotating transmission rod by providing a diverter block, a fixed rod, a movable block, a second pressure sensor and other structures. When the transmission rod rotates and tilts, the movable block can squeeze the second pressure sensor to collect pressure data, thereby judging the damage of the transmission rod, making it easier to understand the actual use status of the ball valve and enabling maintenance personnel to perform maintenance in a timely manner.

[0017] (4) The present invention can adjust the rotation angle of the transmission rod by providing devices such as a pneumatic actuator and a positioner, thereby controlling the opening and closing of the valve body and regulating the flow rate. The positioner can also be used to dynamically compensate the transmission rod, thereby comparing the actual valve opening with the target opening in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A perspective view of the present invention; Figure 2 is a side view of the present invention; Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle; Figure 4 for Figure 3 A partial enlarged view of point B in the middle; Figure 5 It is a structural diagram of the buffer rack parts; Figure 6 for Figure 3 A partial enlarged view of point C in the middle; Figure 7 for Figure 2 Stereoscopic cross-sectional view at DD in the middle; Figure 8 For the present invention Figure 7 A partial enlarged view of point E in the middle; Figure 9 For the present invention Figure 3 A partial enlarged view of point F in the middle; In the figure: valve body 10, pneumatic actuator 11, positioner 12, buffer frame 13, filter screen 14, guide plate 15, bending portion 16, filter hole 17, blade 18, support frame 19, water guide ring 20, sealing compensation ring 21, first pressure sensor 22, flange 23, transmission rod 24, fixing rod 25, movable block 26, return spring 27, second pressure sensor 28, mounting groove 29, striker rod 30, diverter block 31, rotating shaft 32, first sealing ring 33, wire cavity 34, valve core 35, second sealing ring 36, protrusion 37, inclined portion 38, water outlet 39, dividing groove 40. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Example 1:

[0020] refer to Figure 1 、 Figure 2 and Figure 3, a flow-controllable water-saving valve includes a valve body 10, an upper end surface of the valve body 10 is provided with a pneumatic actuator 11, the top end surface of the pneumatic actuator 11 is provided with a positioner 12, and the output end of the pneumatic actuator 11 is provided with a transmission rod 24, the transmission rod 24 passes through the outer surface of the valve body 10 and extends into the interior of the valve body 10, and one end of the filter screen 14 is provided with a valve core 35 inside the valve body 10, and the valve core 35 is a ball valve core with a V-shaped notch, which is a prior art. This solution does not elaborate on the valve core 35 in detail. By starting the pneumatic actuator 11 to drive the transmission rod 24 to rotate, the transmission rod 24 drives the valve core 35 at the bottom to rotate. After the valve core 35 rotates, it can block one end of the valve body 10. The V-shaped notch inside the valve core 35 can adjust the water volume. The V-shaped notch ball is different from the circular through hole of the ordinary ball valve. The ball of the V-shaped ball valve is processed with a V The V-shaped cutout usually has a shearing portion on the edge. When the valve is closed (0° opening), the tip of the V-shaped cutout points to the valve seat, forming a tight linear contact seal. When the valve is opened, the ball rotates around its axis, and the position of the V-shaped cutout relative to the valve seat and flow channel changes. The V-shaped ball valve changes the pattern of flow area changes with valve opening through its unique V-shaped cutout design, thereby facilitating flow adjustment. In addition, the two sides of the valve core 35 can form a shearing effect with the inner wall of the valve body 10, cutting off obstructing linear debris, thereby increasing the service life of the valve core 35.

[0021] For further reference, Figure 2 、 Figure 3 、 Figure 4 and Figure 5, a buffer frame 13 is provided at the water inlet of the valve body 10, and a filter screen 14 is provided on the outside of the buffer frame 13. A plurality of inclined portions 38 are provided inside the buffer frame 13. The inclined portion 38 is in the shape of a bell as a whole, and one end close to the valve core is retracted inward. By providing the inclined portion 38, the incoming water flow can be guided to prevent the water flow with sediment from impacting the inner wall of the filter screen 14, thereby improving the service life of the filter screen 14. A guide vane 15 is provided at one end of the inclined portion 38, and a plurality of dividing grooves 40 are provided on the outer surface of the guide vane 15. By providing a plurality of dividing grooves 40, the guide vane 15 can be bent to one side when subjected to the impact of the water flow, thereby expanding the diameter of the guide vane 15. A bending portion 16 is provided at the connection between the inclined portion 38 and the guide vane 15. When the flow rate of the water flow increases collectively, it will impact the inclined surface of the inclined portion 38. By providing the guide vane 15 and The bending portion 16 can make the guide plate 15 bend along the bending portion 16 toward the filter screen 14, so that the inwardly contracted bell mouth expands outward, and the diameter of the inclined portion 38 is increased, thereby increasing the capacity of water flow. A spiral blade 18 is provided at one end of the buffer frame 13. By setting the blade 18, the water flow will contact the inclined surface of the blade 18 before passing through, and flow along the inclined surface of the blade 18, thereby preventing the water flow from impacting the inner wall of the filter screen 14, further improving the service life of the filter screen 14. The outer surface of the filter screen 14 is provided with a plurality of filter holes 17. The plurality of filter holes 17 are in the shape of a bell mouth with a narrow inside and a wide outside. By setting the filter holes 17, when water passes through the filter holes 17, the sudden expansion of the diameter can reduce the impact of the water flow on the inner wall of the valve body 10, thereby forming a buffer and improving the service life of the valve body 10.

[0022] For further reference, Figure 2 、 Figure 3 and Figure 4 , a support frame 19 is provided on the outside of the buffer frame 13, and the support frame 19 can provide support for the buffer frame 13 and improve the stability of the buffer frame 13. A plurality of water outlets 39 are provided inside the support frame 19, and a water guide ring 20 is provided at one end of the support frame 19 close to the valve core 35. The water guide ring 20 is in a wide outer and narrow inner shape. The end of the water guide ring 20 close to the valve core is inwardly contracted. By providing the water guide ring 20, the water flow filtered by the filter screen 14 can contact the inclined surface of the water guide ring 20, and the water The flow is guided along the inclined surface toward the center of the valve body 10, preventing the water flow from flowing against the inner wall of the valve body 10, thereby preventing the water flow from impacting the shearing part of the valve core 35 and improving the service life of the valve core 35. A sealing compensation ring 21 is provided at one end of the buffer frame 13 on the inner wall of the valve body 10. By providing the sealing compensation ring 21, the valve core 35 can contact the sealing compensation ring 21 after rotation, so that the sealing compensation ring 21 is tightly attached to the spherical outer surface of the valve core 35, thereby forming a seal, blocking the passage of water, and controlling the liquid flow.

[0023] For further reference, Figure 2 、 Figure 3 and Figure 9 , a rotating shaft 32 is provided at one end of the bottom of the valve core 35, and the rotating shaft 32 is rotatably connected to the valve body 10. A first sealing ring 33 is provided between the rotating shaft 32 and the valve body 10, which can improve the sealing between the first pressure sensor 22 and the valve body 10 to prevent liquid leakage. A fixing rod 25 is provided inside the rotating shaft 32, and the rotating shaft 32 is rotatably connected to the fixing rod 25. One end of the fixing rod 25 is fixedly connected to the valve body 10, and the top end of the fixing rod 25 is rotatably connected to the transmission rod 24. A diverter block 31 is provided on the outer surface of the fixing rod 25, and a plurality of spiral protrusions 37 are provided on the outer surface of the diverter block 31. By setting the diverter block 31 and the protrusion 37, the water flow will be diverted due to the obstruction of the diverter block 31 when passing through the valve core, thereby reducing the impact force of the water flow.

[0024] For further reference, Figure 2 、 Figure 3 、 Figure 6 , Figure 7 and Figure 8 , a mounting groove 29 is provided above the fixed rod 25 and inside the transmission rod 24, and the mounting groove 29 is elliptical as a whole. A movable block 26 is slidably provided at one end of the top of the fixed rod 25, and one end of the movable block 26 abuts against the inner wall of the mounting groove 29. A striker rod 30 is provided on the outer surface of the movable block 26, and a return spring 27 is provided on the outside of the striker rod 30. The other end of the return spring 27 is fixedly connected to the inside of the fixed rod 25. A second pressure sensor 28 is provided on one side of the striker rod 30 and inside the fixed rod 25. When the transmission rod 24 drives the valve core 35 to rotate, the internal mounting groove 29 will rotate synchronously. During the rotation of the mounting groove 29, the elliptical inner wall will continuously squeeze the movable block 26, so that the movable block 26 compresses one side. The reset spring 27 and the movable block 26 will push the striker 30 on one side to squeeze the second pressure sensor 28 during the movement. The second pressure sensor 28 will detect and collect the pressure generated by the striker 30. By setting the second pressure sensor 28, the frequency and pressure information of the rotation of the transmission rod 24 can be grasped. When the transmission rod 24 is deflected, the pressure information caused by the mounting groove 29 on the movable block 26 will produce a deviation. The generated deviation will be collected by the second pressure sensor 28, so as to judge the damage of the transmission rod 24. A wire-passing cavity 34 is provided inside 25. By setting the wire-passing cavity 34, the electrical connection line of the second pressure sensor 28 can be connected to the outside, thereby facilitating the control of the second pressure sensor 28 and information transmission.

[0025] The flow-controllable water-saving valve of the present invention has common mechanical installation and connection methods, and the control of the driving part by similar detection parts and the related detection methods of each detection part and the specific circuit relationship can all adopt conventional electrical control technology. As long as the corresponding motion relationship can be completed and its beneficial effects can be achieved in this scheme, it can be implemented; the valve core 35, sealing compensation ring 21, pneumatic actuator 11 and positioner 12 of the flow-controllable water-saving valve of the present invention are all purchased on the market, and technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without the need for technical personnel in this field to pay creative labor. Example 2:

[0026] refer to Figure 2 and Figure 3 , a flow-controllable water-saving valve, a flange 23 is provided at the inlet end of the valve body 10, the flange 23 is fixedly connected to the buffer frame 13, and a second sealing ring 36 is provided between the flange 23 and the buffer frame 13. By providing the second sealing ring 36, the sealing effect between the buffer frame 13 and the flange 23 can be improved to prevent liquid leakage, thereby improving the overall stability of the device, and a plurality of first pressure sensors 22 are provided on the outer surface of the valve body 10. The detection end of the first pressure sensor 22 passes through the end face of the flange 23 and abuts against the outer surface of the buffer frame 13. When the water flow enters the interior of the valve body 10, it will contact the buffer frame 13, causing the buffer frame 13 to vibrate. By providing the first pressure sensor 22, the vibration frequency and pressure of the buffer frame 13 can be detected, thereby controlling the water flow pressure information inside the valve body 10.

[0027] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0028] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0029] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A flow-controllable water-saving valve, comprising a valve body (10), characterized in that: The valve body (10) is provided with a filter screen (14) for filtering mud and sand inside, and a buffer frame (13) is provided inside the filter screen (14). A plurality of guide plates (15) capable of providing buffering are provided on the inner wall of the buffer frame (13). A plurality of buffer rings are provided on the inner wall of the buffer frame (13) in a straight line direction, and the buffer rings are bent in a V shape and can buffer water flow. A sealing compensation ring (21) is provided at one end of the buffer frame (13) inside the valve body (10), and a valve core (35) is provided on one side of the sealing compensation ring (21) so as to be rotatable inside the valve body (10). A transmission rod (24) is provided at one end of the top of the valve core (35), and a fixed rod (25) is provided inside the transmission rod (24) so ​​as to be rotatable. A diverter block (31) is provided on the outer surface of the fixed rod (25), and a second pressure sensor (28) capable of detecting shaking is provided at one end of the fixed rod (25) inside the transmission rod (24).

2. A flow-controllable water-saving valve according to claim 1, characterized in that: The buffer ring plate includes an inclined portion (38) provided at one end on the inner circular surface of the buffer frame (13), the inclined portion (38) is inclined upward toward the valve core (35), a downwardly inclined guide plate (15) is provided on one side of the inclined portion (38), a bending portion (16) is formed between the guide plate (15) and the inclined portion (38), and a blade (18) is provided at one end of the buffer frame (13).

3. A flow-controllable water-saving valve according to claim 1, characterized in that: The outer surface of the filter screen (14) is provided with a plurality of filter holes (17), and the plurality of filter holes (17) are in a trumpet-shaped shape with a narrow inner side and a wide outer side.

4. A flow-controllable water-saving valve according to claim 2, characterized in that: The outer surface of the buffer frame (13) is provided with a support frame (19), and a plurality of water outlet holes (39) are provided inside the support frame (19). The plurality of water outlet holes (39) are generally inclined. A water guide ring (20) is provided at one end of the support frame (19) close to the sealing compensation ring (21), and the water guide ring (20) is in a contracted shape with a wide outside and a narrow inside.

5. The flow-controllable water-saving valve according to claim 1, characterized in that: A flange (23) is provided at the water inlet of the valve body (10), a second sealing ring (36) is provided between the flange (23) and the buffer frame (13), and a plurality of first pressure sensors (22) are provided on the outer surface of the valve body (10), and the detection ends of the plurality of first pressure sensors (22) pass through the flange (23) and abut against the outer surface of the buffer frame (13).

6. A flow-controllable water-saving valve according to claim 1, characterized in that: The outer surface of the diverter block (31) is provided with a plurality of spiral-shaped protrusions (37).

7. The flow-controllable water-saving valve according to claim 1, characterized in that: The transmission rod (24) is provided with a mounting groove (29) inside, and the mounting groove (29) is rotatably connected with the fixed rod (25). The fixed rod (25) is provided with a movable block (26) inside for sliding. One end of the movable block (26) abuts against the inner wall of the mounting groove (29). The other end of the movable block (26) is provided with a striker (30). The outside of the striker (30) is provided with a return spring (27), and one end of the return spring (27) is fixedly connected to the inner wall of the fixed rod (25).

8. The flow-controllable water-saving valve according to claim 1, characterized in that: A rotating shaft (32) is provided at one end of the bottom of the valve core (35), and the rotating shaft (32) is rotatably connected to the valve body (10). A first sealing ring (33) is provided between the rotating shaft (32) and the valve body (10).

9. A flow-controllable water-saving valve according to claim 8, characterized in that: The fixing rod (25) passes through the rotating shaft (32) and extends to the outside of the valve body (10). A wire passage cavity (34) is provided inside the fixing rod (25).

10. The flow-controllable water-saving valve according to claim 1, characterized in that: A pneumatic actuator (11) is provided on the top end surface of the valve body (10), and the output end of the pneumatic actuator (11) is connected to the transmission rod (24) in a transmission-coordinated manner. A positioner (12) is provided on the top of the pneumatic actuator (11), and the positioner (12) is connected to one end of the transmission rod (24) in a transmission-coordinated manner.

Images