Check valve structure with self-cleaning runner

Abstract

The check valve structure with the self-cleaning runner relates to the field of check valves and comprises a valve body, one end of the valve body is communicated with a communicating pipe through a flange, one end of the communicating pipe is connected with a communicating mechanism, a transmission mechanism is installed on the inner side of the communicating pipe, and one end of the transmission mechanism is in transmission connection with a cleaning mechanism. The turbine is guided and impacted through the water inlet, the turbine is driven to rotate, then power is transmitted to the center gear through the coupling rod, the center gear makes contact with the small gear, the power is further transmitted to the gear ring, follow-up mechanical actions are started, the gear ring and the first rotating rod work cooperatively, and the rotating rods can rotate smoothly; power is transmitted to the stress block through the surface driving groove, the movable pipe is pushed to slide in the sleeve, then translation of the cleaning mechanism is achieved, the movable pipe can slide along the inner wall of the communicating pipe to clean deposited dirt on the connecting portion of the valve, the situation that the normal function of the valve is affected by impurity accumulation is effectively avoided, and the self-cleaning purpose is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of check valves, in particular to a check valve structure with a self-cleaning flow channel. BACKGROUND

[0002] A check valve is a valve with a circular valve disc that blocks the flow of fluid in the opposite direction by its own weight and the pressure of the medium. It belongs to the category of automatic valves and is also known as a non-return valve, a one-way valve, a backflow valve, or an isolation valve. The valve disc can move in an ascending and descending manner or in a rotating manner. The ascending and descending check valve is similar in structure to a stop valve, except that it lacks a valve stem to drive the valve disc.

[0003] For example, CN120459686A discloses a self-cleaning filter and check valve, which includes a pipe body and an annular filter screen. The annular filter screen has a bottom plate fixed coaxially at one end, and a water guide column is arranged on one side of the bottom plate. The annular filter screen is fixedly connected to the inner wall of the pipe body through a fixing ring at one end. A center column is coaxially arranged at the water inlet end of the pipe body, and a spiral flow channel is arranged between the center column and the inner wall of the pipe body. A deslagging port and a deslagging pipe are arranged on the bottom plate. The deslagging pipe is in communication with the deslagging port at one end and extends out of the pipe body at the other end. A cleaning mechanism is further arranged in the pipe body.

[0004] However, in the prior art, when fluid flows through the pipeline, changes in flow rate and turbulent flow often cause impurities such as silt, scale, and other medium residues to accumulate at the connection site. The long-term accumulation of these impurities not only seriously affects the sealing performance of the valve, but also causes leakage problems. As the accumulation of impurities increases, the diameter of the pipeline gradually decreases, resulting in an increase in the flow resistance of the fluid, thereby significantly increasing the energy consumption of the system and reducing the efficiency. In addition, the accumulation of impurities also causes partial or complete blockage of the pipeline, which can even cause equipment downtime and production interruption. Traditional technology often cannot timely remove these accumulated substances, resulting in long-term unstable operation of the valve and pipeline system. SUMMARY

[0005] The present application aims to provide a check valve structure with a self-cleaning flow channel to solve the problem of easy accumulation of impurities such as silt, scale, and medium residues at the connection site of the pipeline and the valve due to factors such as changes in fluid flow rate and turbulent flow.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a check valve structure with a self-cleaning flow channel, comprising a valve body, one end of the valve body being connected to a communication pipe through a flange, one end of the communication pipe being connected to a communication mechanism, a transmission mechanism being installed inside the communication pipe, and a cleaning mechanism being transmissionally connected to one end of the transmission mechanism. The transmission mechanism comprises a mounting sleeve, a connecting sleeve threadedly connected to one end of the mounting sleeve, a sleeve tube threadedly connected to one end of the connecting sleeve, a first rotating rod rotatably connected to the inner side of the sleeve tube, a gear ring rotatably connected to the inner wall of the connecting sleeve, two pinions meshingly connected to the inner side of the gear ring, a central gear meshingly connected between the two pinions, the gear ring being fixedly connected to one end of the first rotating rod, a second rotating rod fixedly connected to the inner surface of the pinion, the second rotating rod being fixedly connected to the mounting sleeve, the central gear shaft end penetrating through the mounting sleeve and being fixedly connected to a shaft rod, and a movable tube slidably connected to the inner side of the sleeve tube. The cleaning mechanism comprises a connecting block rotatably connected to one end of the movable tube.

[0007] Preferably, a driving groove is formed in the surface of the first rotating rod, a stress block is slidably connected to the inner side of the driving groove, the stress block is fixedly connected to the bottom end of the movable tube, a spring is arranged in the movable tube, and one end of the spring abuts against the inner cavity of the first rotating rod.

[0008] Preferably, a turbine is fixedly connected to one end of the shaft rod, a support rod is fixedly connected to the side wall of the sleeve tube, and the support rod is fixedly connected to the inner wall of the communication tube.

[0009] Preferably, a plurality of fixed rods are fixedly connected to the outer surface of the connecting block, and a scraper is fixedly connected to one end of each fixed rod.

[0010] Preferably, two arc flow channels are formed in the interior of the scraper, and the scraper abuts against the inner wall of the communication tube.

[0011] Preferably, the communication mechanism comprises a first connecting tube and a second connecting tube, a first hemisphere is fixedly connected to one end of the first connecting tube, a second hemisphere is fixedly connected to one end of the second connecting tube, and the second hemisphere and the first hemisphere are rotatably connected.

[0012] Preferably, a second connecting tube is fixedly connected to the outer surface of one end of the second connecting tube, and the second connecting tube is inserted into the inner side of the communication tube.

[0013] Preferably, a central rod is rotatably connected to the inner side of the first hemisphere, and the other end of the central rod is rotatably connected to the second hemisphere.

[0014] Preferably, a water inlet is fixedly connected to the inner wall of one end of the communication tube, and the communication tube is sleeved with a plug-in sleeve at one end.

[0015] Compared with the prior art, the present application has the following advantages: 1. In the present invention, the water inlet guides and impacts the turbine, driving the turbine to rotate, and then transmits power to the central gear through the coupling rod. The central gear contacts the pinion and further transmits the power to the gear ring, starting subsequent mechanical actions. The gear ring works in conjunction with the first rotating rod, allowing the rotating rod to rotate smoothly and transmit power to the force-bearing block through the surface driving groove, pushing the movable tube to slide in the sleeve, thereby realizing the translation of the cleaning mechanism. The sliding of the movable tube can slide along the inner wall of the connecting pipe, cleaning the dirt at the valve connection part, effectively preventing the accumulation of impurities from affecting the normal function of the valve, and achieving the purpose of self-cleaning; 2. In the present invention, the first rotating rod squeezes the spring, causing the spring to compress and deform. The first rotating rod rotates in coordination with the gear ring and the central gear, and the driving groove is used to apply force to the force-bearing block, causing the force-bearing block to displace and continuously rotate. Due to the elasticity of the spring, the first rotating rod not only drives the movable tube to rotate, but also drives the movable tube to reset through the spring restoring force, generating a telescopic motion, driving the connecting block to reciprocate. This motion enables the scraper to more effectively contact the surface to be cleaned during operation, thereby enhancing the cleaning effect. The flow of the fluid also affects the movement of the scraper. The impact force of the fluid not only causes the scraper to reciprocate more violently, but also causes the scraper to rotate, further enhancing its cleaning effect, enabling more comprehensive removal of surface residues and improving cleaning efficiency. 3. In the present invention, the plug-in sleeve is used in conjunction with the connecting structure to ensure a stable connection and flexible adjustment of the flow direction. The design of the plug-in sleeve enables one end of the second connecting pipe to be stably inserted into the connecting pipe to prevent loosening or leakage, thereby ensuring the firmness of the connection. The center rod is used as a transmission device to achieve relative rotation between the first hemisphere and the second hemisphere. The center rod guides the movement of the hemispheres axially to ensure that the two rotate under stability and sealing. Such a design enables the first connecting pipe to flexibly adjust the angle as needed to meet the requirements of different fluid delivery routes. During the rotation process, the relative rotation of the first hemisphere and the second hemisphere is carried out around the axis of the center rod to avoid excessive friction or misalignment that affects the sealing performance, thereby ensuring smooth adjustment of the fluid delivery direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a check valve structure with a self-cleaning flow channel according to the present invention; Figure 2 This is a partial structural diagram of a check valve structure with a self-cleaning flow channel according to the present invention; Figure 3 This is a schematic cross-sectional view of a check valve structure with a self-cleaning flow passage according to the present invention; Figure 4 This is a schematic structural diagram of a transmission mechanism of a check valve structure with a self-cleaning flow passage according to the present invention; Figure 5Split structure schematic view of the drive mechanism of the check valve structure with self-cleaning flow channel of the application; Figure 6 Split structure schematic view of the drive mechanism of the check valve structure with self-cleaning flow channel of the application; Figure 7 Structure schematic view of the communication mechanism of the check valve structure with self-cleaning flow channel of the application.

[0017] In the figure: 1, communication mechanism; 11, first connecting pipe; 12, first half sphere; 13, center rod; 14, second half sphere; 15, second connecting pipe; 16, plug-in sleeve; 2, communication pipe; 21, water inlet; 3, valve body; 4, drive mechanism; 41, turbine; 411, shaft coupling rod; 42, mounting sleeve; 43, connecting sleeve; 44, first rotating rod; 441, driving groove; 45, sleeve pipe; 451, supporting rod; 46, movable pipe; 461, spring; 462, force block; 47, gear ring; 48, center gear; 49, second rotating rod; 491, pinion; 5, cleaning mechanism; 51, connecting block; 52, fixed rod; 53, scraper; 54, arc flow channel. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0019] Embodiment one: refer to Figure 1 - Figure 6 As shown in the figure: a check valve structure with self-cleaning flow channel, comprising a valve body 3, the valve body 3 has a communication pipe 2 communicated through a flange at one end, the communication pipe 2 has a communication mechanism 1 connected at one end, the communication pipe 2 has a drive mechanism 4 installed inside, the drive mechanism 4 has a cleaning mechanism 5 drivingly connected at one end; The drive mechanism 4 comprises a mounting sleeve 42, the mounting sleeve 42 has a connecting sleeve 43 threadedly connected at one end, the connecting sleeve 43 has a sleeve pipe 45 threadedly connected at one end, the sleeve pipe 45 has a first rotating rod 44 rotatably connected inside, the connecting sleeve 43 has a gear ring 47 rotatably connected on the inner wall, the gear ring 47 has two pinions 491 meshingly connected inside, the two pinions 491 have a center gear 48 meshingly connected therebetween, the gear ring 47 is fixedly connected at one end with the first rotating rod 44, the pinions 491 have a second rotating rod 49 fixedly connected on the inner surface, the second rotating rod 49 is fixedly connected with the mounting sleeve 42, the center gear 48 has a shaft end penetrating through the mounting sleeve 42, and the center gear 48 has a shaft end fixedly connected with a shaft coupling rod 411, the sleeve pipe 45 has a movable pipe 46 slidingly connected inside; The cleaning mechanism 5 comprises a connecting block 51, one end of which is rotatably connected with the movable pipe 46.

[0020] In this embodiment, during the operation of the device, the fluid is first guided through the water inlet 21, enters the system along a specific path and directly impacts the turbine 41. The key to this process is the impact force of the fluid, which can effectively drive the rotation of the turbine 41. The turbine 41 is connected with the shaft 411, and through the rotation of the shaft 411, power is transmitted to the central gear 48. In this transmission process, the central gear 48 not only rotates itself, but also transmits the rotating force to the two pinions 491 through the contact of its tooth surface with the two pinions 491. The pinions 491 then transmit their rotating power to the tooth ring 47, thereby starting the subsequent mechanical action.

[0021] In addition to the central gear 48 being able to directly drive the rotation of the first rotating rod 44, the tooth ring 47 also plays a synergistic role. The cooperation between the tooth ring 47 and the first rotating rod 44 enables the first rotating rod 44 to rotate smoothly. On the surface of the first rotating rod 44, there is a special driving groove 441, which provides a sufficient contact surface for the force receiving block 462, so that the driving force in the rotation process can be transmitted to the force receiving block 462. Under the action of the driving groove 441, the force receiving block 462 slides along the inside of the shaft 411, thereby pushing the movable pipe 46 to move within the sleeve pipe 45.

[0022] This enables the entire cleaning mechanism 5 to translate within a certain range and achieve the cleaning task. Specifically, the sliding of the movable pipe 46 enables the cleaning mechanism 5 to slide along the inner wall of the communication pipe 2, thereby cleaning the accumulated dirt at the connection between the communication pipe 2 and the valve body 3. In this way, the cleaning process can effectively remove impurities at the valve connection part, avoiding the accumulation of these impurities and affecting the normal function of the valve body 3.

[0023] Embodiment Two: Figure 2 - Figure 6 As shown, the surface of the first rotating rod 44 is provided with a driving groove 441, and the inside of the driving groove 441 is slidably connected with a force receiving block 462. The bottom end of the force receiving block 462 is fixedly connected with the movable pipe 46. The movable pipe 46 is provided with a spring 461, one end of which abuts against the inner cavity of the first rotating rod 44. One end of the shaft 411 is fixedly connected with the turbine 41. The side wall of the sleeve pipe 45 is fixedly connected with a support rod 451, which is fixedly connected with the inner wall of the communication pipe 2. The outer surface of the connecting block 51 is fixedly connected with a plurality of fixed rods 52, one end of each fixed rod 52 being fixedly connected with a scraper 53. The inside of the scraper 53 is provided with two arc flow channels 54, and the scraper 53 abuts against the inner wall of the communication pipe 2.

[0024] In this embodiment, when the movable tube 46 is working, the spring 461 will be first compressed by the first rotating rod 44, so that the spring 461 is deformed. Specifically, as the first rotating rod 44 rotates with the tooth ring 47 and the center gear 48, the first rotating rod 44 applies a force to the force receiving block 462 through the driving groove 441, so that the force receiving block 462 is displaced and continuously rotated. At the same time, due to the elasticity of the spring 461, the first rotating rod 44 not only drives the movable tube 46 to continue rotating, but also pushes the movable tube 46 to complete the reset action through the restoring force of the spring 461.

[0025] This reset action enables the movable tube 46 to produce a certain telescopic movement inside the sleeve tube 45, thereby driving the connecting block 51 to make a reciprocating motion. This back-and-forth motion of the connecting block 51 not only ensures that the scraper 53 can more effectively contact the surface to be cleaned during the working process, but also further enhances the cleaning effect of the scraper 53 on the surface dirt.

[0026] At the same time, during the movement of the scraper 53, the flow state of the fluid inside the arc-shaped flow channel 54 also has an important influence on the scraper 53. The flow of the fluid not only exerts an impact force on the scraper 53, prompting the scraper 53 to make more vigorous reciprocating motion, but also the impact force can make the scraper 53 rotate by a certain angle. The rotating action of the scraper 53 further enhances its scraping effect, enabling it to more comprehensively clean the residual material on the surface to be treated, thereby significantly improving the cleaning efficiency and effect.

[0027] Embodiment Three: According to Figure 2 and Figure 7 As shown, the communication mechanism 1 includes a first connecting tube 11 and a second connecting tube 15, the first connecting tube 11 is fixedly connected with a first hemisphere 12 at one end, the second connecting tube 15 is fixedly connected with a second hemisphere 14 at one end, and the second hemisphere 14 is rotationally connected with the first hemisphere 12. The outer surface of the second connecting tube 15 at one end is fixedly connected with the second connecting tube 15, and the second connecting tube 15 at one end is inserted into the inner side of the communication tube 2. The inner side of the first hemisphere 12 is rotationally connected with a center rod 13, and the other end of the center rod 13 is rotationally connected with the second hemisphere 14. The inner wall of the communication tube 2 at one end is fixedly connected with a water inlet 21, and the communication tube 2 at one end is sleeved with a plug-in sleeve 16.

[0028] In this embodiment, in order to ensure stable connection and flexible adjustment of flow direction during fluid delivery, the plug-in sleeve 16 and the corresponding connecting structure can be used. Specifically, the plug-in sleeve 16 plays a supporting role, so that one end of the second connecting tube 15 can be stably inserted into the inner side of the communication tube 2. This plug-in design not only ensures the firmness of the connection, but also avoids loosening or leakage during delivery.

[0029] Further, by using the center rod 13 as a transmission device, the relative rotation between the first hemisphere 12 and the second hemisphere 14 can be achieved. The core of this rotation mechanism is that the center rod 13 guides the hemispheres through its axial direction, so that they can rotate relative to each other while maintaining stability and sealing, thereby achieving the adjustment of the direction of the first connecting pipe 11. In this way, the first connecting pipe 11 can be flexibly adjusted according to the needs to meet the needs of different fluid conveying routes.

[0030] During rotation, the relative rotation between the first hemisphere 12 and the second hemisphere 14 always revolves around the center rod 13 as the axis. This ensures that the rotational movement between the two can be smooth, without affecting the sealing performance of the connection due to excessive friction or asymmetry. In this way, whether it is the adjustment of the direction of fluid conveying or stability, it can be guaranteed, effectively avoiding problems such as fluid leakage or poor conveying.

[0031] The method of using the device and the working principle: in the process of use, the fluid will pass through the guide impact turbine 41 of the water inlet 21, so that the turbine 41 starts to rotate, and then drives the center gear 48 to rotate through the shaft coupling rod 411. In this process, the center gear 48 will exert force on the two pinions 491, and then the pinions 491 will transmit the force to the gear ring 47.

[0032] During transmission, the center gear 48 will drive the first rotating rod 44 to rotate, and the gear ring 47 will also play a synergistic role. In this way, when the first rotating rod 44 rotates, it will exert force on the stressed block 462 through the driving groove 441 on the surface, causing the stressed block 462 to slide inside the shaft coupling rod 411, and then driving the movable pipe 46 to slide inside the sleeve pipe 45. By using the movement of the movable pipe 46, the entire cleaning mechanism 5 can be moved to clean the inner wall of one end of the communication pipe 2, remove the impurities accumulated at the connection between the communication pipe 2 and the valve body 3, and avoid affecting the valve body 3.

[0033] When the movable pipe 46 moves, it will press the spring 461 with the first rotating rod 44, causing the spring 461 to compress. Moreover, when the first rotating rod 44 rotates with the gear ring 47 and the center gear 48, it will continuously exert force on the stressed block 462 through the driving groove 441, and also use the elasticity of the spring 461 to push the movable pipe 46 back to its original position. Therefore, during the rotation of the first rotating rod 44, the movable pipe 46 will expand and contract inside the sleeve pipe 45, driving the connecting block 51 to move back and forth, thereby improving the cleaning effect of the scraper 53.

[0034] During the movement of the scraper 53, the fluid will also flow in the arc flow channel 54, generating an impact force on the scraper 53, so that the scraper 53 can move back and forth and rotate, further improving the cleaning effect.

[0035] When conveying fluid, the insertion sleeve 16 is used to stably insert one end of the second connecting pipe 15 into the inside of the communicating pipe 2. Then, the first half sphere 12 and the second half sphere 14 are relatively rotated by means of the central rod 13, so as to adjust the direction of the first connecting pipe 11. In this process, the first half sphere 12 and the second half sphere 14 rotate around the central rod 13, and ensure that they maintain a good communication relationship during relative rotation, so as to guarantee the normal conveying of fluid.

[0036] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can make modifications to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A check valve structure with a self-cleaning flow channel, comprising a valve body (3), one end of the valve body (3) being connected to a connecting pipe (2) via a flange, characterized in that: One end of the connecting pipe (2) is connected to a connecting mechanism (1), a transmission mechanism (4) is installed inside the connecting pipe (2), and one end of the transmission mechanism (4) is connected to a cleaning mechanism (5); The transmission mechanism (4) includes a mounting sleeve (42), one end of the mounting sleeve (42) is threadedly connected to a connecting sleeve (43), one end of the connecting sleeve (43) is threadedly connected to a sleeve (45), the inner side of the sleeve (45) is rotatably connected to a first rotating rod (44), the inner wall of the connecting sleeve (43) is rotatably connected to a gear ring (47), the inner side of the gear ring (47) is meshedly connected to two pinions (491), a central gear (48) is meshedly connected between the two pinions (491), one end of the gear ring (47) is fixedly connected to the first rotating rod (44), the inner surface of the pinion (491) is fixedly connected to a second rotating rod (49), the second rotating rod (49) is fixedly connected to the mounting sleeve (42), the shaft end of the central gear (48) passes through the mounting sleeve (42), and the shaft end of the central gear (48) is fixedly connected to a coupling rod (411), and the inner side of the sleeve (45) is slidably connected to a movable tube (46); The cleaning mechanism (5) comprises a connecting block (51), the axial end of the connecting block (51) being rotatably connected to one end of the movable tube (46).

2. A check valve structure with a self-cleaning flow passage according to claim 1, characterized in that: A driving groove (441) is provided on the surface of the first rotating rod (44), a force block (462) is slidably connected to the inner side of the driving groove (441), the bottom end of the force block (462) is fixedly connected to the movable tube (46), a spring (461) is provided in the movable tube (46), and one end of the spring (461) abuts against the inner cavity of the first rotating rod (44).

3. The check valve structure with a self-cleaning flow passage according to claim 1, characterized in that: One end of the coupling rod (411) is fixedly connected to the turbine (41), the side wall of the sleeve (45) is fixedly connected to the support rod (451), and the support rod (451) is fixedly connected to the inner wall of the connecting pipe (2).

4. A check valve structure with a self-cleaning flow passage according to claim 1, characterized in that: A plurality of fixing rods (52) are fixedly connected to the outer surface of the connecting block (51), and a scraper (53) is fixedly connected to one end of the fixing rod (52).

5. A check valve structure with a self-cleaning flow passage according to claim 4, characterized in that: Two arc flow channels (54) are provided inside the scraper (53), and the scraper (53) abuts against the inner wall of the connecting pipe (2).

6. The check valve structure with a self-cleaning flow passage according to claim 1, characterized in that: The connecting mechanism (1) comprises a first connecting tube (11) and a second connecting tube (15); one end of the first connecting tube (11) is fixedly connected to a first hemisphere (12); one end of the second connecting tube (15) is fixedly connected to a second hemisphere (14); the second hemisphere (14) and the first hemisphere (12) are rotatably connected.

7. A check valve structure with a self-cleaning flow passage according to claim 6, characterized in that: The outer surface of one end of the second connecting tube (15) is fixedly connected to the second connecting tube (15), and one end of the second connecting tube (15) is inserted into the inner side of the connecting tube (2).

8. The check valve structure with a self-cleaning flow passage according to claim 7, characterized in that: The inner side of the first hemisphere (12) is rotatably connected to a central rod (13), and the other end of the central rod (13) is rotatably connected to the second hemisphere (14).

9. The check valve structure with a self-cleaning flow passage according to claim 1, characterized in that: A water inlet (21) is fixedly connected to the inner wall of one end of the connecting pipe (2), and one end of the connecting pipe (2) is sleeved with the plug sleeve (16).

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