Special single flow valve of manifold integrated with buffer sand chamber

Abstract

The application relates to the technical field of manifold valves, and discloses a single-flow valve special for a manifold and integrated with a buffer sand setting chamber, which comprises a valve body, the inside of a flow channel of the valve body is integrated with a buffer sand setting structure, high-speed medium can be slowed down and buffered, gravity separation of the medium and sand and gravel is realized, and the erosion damage of sand and gravel to a valve core and the valve body is reduced. An adaptive push execution mechanism is arranged at the bottom of the valve body, linkage cooperation of a driving structure, a rotary transmission structure and a multi-stage adjusting structure can adaptively adjust the installation height and the operation stroke of a sand pushing component according to the actual working condition of the medium, and the sand cleaning demand of different sand-containing and viscosity working conditions can be adapted. Meanwhile, a movable telescopic sand prevention protection structure is arranged, sand and gravel can be effectively prevented from invading a transmission part, a double-layer composite wear-resistant sand pushing structure is matched, and the whole valve cavity is cleaned without dead angle.

Description

Technical Field

[0001] This invention relates to the field of manifold valve technology, specifically a manifold-specific single-flow valve with an integrated buffer grit chamber. Background Technology

[0002] In industrial manifold transportation systems such as petroleum, chemical, and water utilities, check valves are core components for controlling unidirectional media flow and preventing backflow. Existing conventional manifold check valves have limited structural functionality and mostly lack dedicated sand-absorbing buffer structures. When high-speed media containing sand flows through the valve body, the flow velocity cannot be reduced, and the sand directly and continuously erodes the valve core and inner wall, easily causing wear and sealing failure, significantly shortening the valve's service life.

[0003] Meanwhile, traditional single-flow valves do not have an automatic sand removal function. Gravel in the medium is prone to accumulate and settle inside the valve cavity. Long-term sand accumulation will block the flow channel, affect the efficiency of medium transportation, and in severe cases, cause valve jamming, failure to open and close, and pipeline operation failure.

[0004] Furthermore, most of the one-way valves with sand-clearing structures on the market are fixed push-type structures, which cannot adaptively adjust the working stroke according to the sand content, viscosity, and other working conditions of the medium. Their adaptability to working conditions is poor, and the transmission structure is often exposed without a reliable sand-proof protection structure. Sand and gravel can easily enter the transmission gap, leading to mechanism jamming, accelerated wear, and higher equipment failure rates and maintenance costs. This makes them unsuitable for long-term stable conveying of complex sand-containing media. Therefore, a dedicated one-way valve for manifolds with an integrated buffer sand-clearing chamber has been invented to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a manifold-specific single-flow valve with an integrated buffer grit chamber to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a manifold-specific single-flow valve with an integrated buffer sand settling chamber, comprising a support frame, a valve body, a valve core assembly disposed inside the valve body, and a buffer sand settling chamber integrated inside the flow channel of the valve body. The bottom of the buffer sand settling chamber is movably equipped with an adjustable height push-actuator, which includes a drive mechanism, a rotation mechanism, a sand-proof shell, an adjustment mechanism, and an arc-shaped top sand plate. The drive mechanism is used to output rotational power to drive the rotating mechanism connected to its outer side to perform reciprocating movements, thereby causing the two ends of the rotating mechanism to swing up and down. The adjustment mechanism is linked to the top of the rotating mechanism and can move synchronously with the rotating mechanism. It is used to adaptively adjust the initial installation height and downward extension stroke of the top arc-shaped sand plate according to the actual working conditions such as the sand content and viscosity of the pipeline medium, so as to adapt to the different pipeline sand conveying and buffering sand settling operation requirements. The sandproof shell is covered and disposed on the outer surface of the rotating mechanism, including a conical shell and a push plate. The conical shell is an overall inclined conical structure, which can block the medium and gravel from entering the interior of the sandproof shell, and at the same time guide the pipeline medium and fine gravel to flow smoothly and downward along the inclined surface. The push plate is slidably assembled inside the conical shell and can extend and retract synchronously with the swinging motion of the rotating mechanism. It completely seals the gap between the shells, effectively preventing sand and impurities from entering the interior of the mechanism and avoiding jamming and wear of the rotating mechanism. The arc-shaped top sand plate is a double-layer composite structure, including an upper wear-resistant buffer layer and a lower support and adjustment layer. The double-layer structure is fixed in one piece and has the properties of wear resistance, impact resistance, buffering and stress relief and structural support. It can effectively receive and lift the sand and gravel deposited in the buffer sand settling chamber to prevent the sand and gravel from accumulating and blocking the valve body flow channel. The valve core assembly is the core opening and closing structure of a single-flow valve. It is sealed and slidably assembled inside the main channel of the valve body and is arranged vertically and vertically with the buffer sand settling chamber. It can automatically open and close through the medium pressure difference to control the unidirectional flow of the medium in the pipeline. At the same time, it works with the buffer sand settling chamber to achieve medium flow buffering and sand and gravel sedimentation and separation, ensuring the stability of pipeline opening and closing. The buffer sedimentation chamber is an integrated concave cavity structure within the valve body flow channel. The cavity volume is adapted to the pipeline medium flow rate and sand content conditions. It can decelerate and buffer the high-speed flowing medium, reduce the medium velocity, and allow the sand and gravel carried in the medium to settle fully under the action of gravity, thereby achieving separation of the medium and sand and gravel and reducing the erosion and wear of sand and gravel on the valve core assembly and valve body from the source.

[0007] As a preferred embodiment of the present invention, the driving mechanism includes a protective shell, a motor is fixedly connected inside the top of the protective shell, an inclined bottom plate is fixedly connected to the top of the protective shell, a threaded rod is correspondingly connected to the output shaft end of the motor, and the outer surface of the threaded rod is meshed and transmitted with the rotating mechanism.

[0008] As a preferred embodiment of the present invention, the rotating mechanism includes two symmetrically arranged connecting blocks. Each of the two connecting blocks has an assembly groove on its top. A rotating shaft is rotatably connected inside each of the assembly grooves. A gear is fixedly sleeved in the middle of each of the two rotating shafts, and the outer surfaces of the two gears mesh with the outer surfaces of the threaded rod.

[0009] As a preferred embodiment of the present invention, both ends of the two gears are fixedly connected to swing rods, and the top ends of the two swing rods are fixedly connected to the bottom of the adjustment mechanism; The two swing rods are made of high-strength alloy material, which has the characteristics of bending resistance and fatigue resistance, and can be adapted to high-frequency reciprocating swing operation.

[0010] As a preferred embodiment of the present invention, the adjustment mechanism includes two symmetrically arranged first movable blocks, the bottoms of the two first movable blocks being fixedly connected to the top of the swing rod, and each of the tops of the two first movable blocks having a sliding groove. A second movable block is movably connected inside the sliding groove, and the tops of the two second movable blocks are movably fitted with a movable seat adapted for lifting and adjusting.

[0011] As a preferred embodiment of the present invention, an arc-shaped support plate is fixedly connected to the top of the movable seat, and the top arc-shaped outer surface of the arc-shaped support plate is fitted and fixedly connected to the bottom arc-shaped inner surface of the arc-shaped top sand plate to achieve stable support and synchronous transmission.

[0012] As a preferred technical solution of the present invention, the bottom end of the conical shell of the sandproof shell is sealed and fixed to the top end of the protective shell, the inner side of the push plate is slidably attached to the outer wall of the swing rod, and the push plate extends and retracts synchronously with the swing rod, thus sealing the movement gap of the conical shell throughout the process and preventing sand and impurities from entering the interior of the mechanism.

[0013] As a preferred technical solution of the present invention, the upper wear-resistant buffer layer of the arc-shaped top sand plate is made of polyurethane wear-resistant coating material, and the lower support and adjustment layer is made of hard stainless steel material, with the double-layer structure integrally sintered; the arc curvature of the arc-shaped top sand plate is adapted to the arc of the inner cavity of the buffer sand settling chamber, which can fit the inside of the cavity to realize full-area sand top and sand cleaning operation, effectively avoiding the accumulation of sand and gravel in dead corners, and can be used in conjunction with the lifting stroke of the adjustment mechanism to adapt to cleaning conditions with different sand accumulation thicknesses.

[0014] Compared with the prior art, the beneficial effects of the present invention are: A dedicated one-way valve for manifolds with an integrated buffer settling chamber serves as the power core of the entire jacking sand-clearing mechanism. Its internal motor, threaded rod, and protective shell are integrated into a single assembly, enabling stable and controllable rotational power output. Simultaneously, the inclined base plate optimizes media flow, and the protective shell provides comprehensive protection for the internal motor and threaded rod components, effectively isolating them from the corrosive effects of pipeline media, sand, and moisture. This ensures continuous and automated operation of the jacking sand-clearing process, eliminating the need for frequent manual intervention and significantly improving the overall operating efficiency and service life of the equipment.

[0015] A manifold-specific one-way valve with an integrated buffer sand settling chamber drives a rotating shaft and a swing arm to reciprocate synchronously via a threaded rod meshing with gears on both sides, achieving symmetrical, coordinated operation on both sides. This structure completely solves the problems of uneven force distribution, unilateral load distribution, and sand-clearing deviation in traditional single-arm jacking structures. The synchronous swing of the swing arms on both sides ensures uniform force distribution and smooth, non-deviation-prone lifting and lowering of the top adjustment mechanism and the arc-shaped top sand plate. Furthermore, the swing arms are made of high-strength alloy material, possessing excellent bending and fatigue resistance, allowing for long-term adaptation to high-frequency reciprocating swing conditions. The structure boasts high strength and is not easily deformed or damaged.

[0016] A manifold-specific single-flow valve with an integrated buffer sand settling chamber, relying on a multi-stage sliding fit structure of the first movable block, the second movable block and the movable seat, can synchronously link with the swinging motion of the rotating mechanism. It can adaptively adjust the initial installation height and downward extension stroke of the arc-shaped top sand plate according to different actual working conditions such as sand content, viscosity and flow rate of the pipeline medium.

[0017] A manifold-specific check valve with an integrated buffer sand settling chamber features a wraparound sandproof shell integrated on the outside of the rotating mechanism. This shell, composed of a conical outer shell and a retractable push plate, forms an integrated protective structure. The conical outer shell, with its sloping cone design, actively prevents sand and gravel from entering the mechanism while guiding the flow of media and fine sand, preventing sand and gravel accumulation on the outside. The retractable push plate extends and retracts synchronously with the swing arm, completely sealing the movement gaps of the mechanism and achieving dynamic sealing protection.

[0018] A manifold-specific one-way valve with an integrated buffer grit chamber utilizes a double-layer composite structure with an arc-shaped top sand plate. The upper wear-resistant buffer layer is coated with polyurethane, providing excellent erosion resistance and buffering performance, resisting the impact and wear of high-speed media and grit. The lower support and adjustment layer is made of hard stainless steel, offering strong structural rigidity and good support stability. The two layers are integrally sintered, balancing toughness and strength. Furthermore, the curvature of the arc-shaped top sand plate perfectly matches the inner cavity of the buffer grit chamber, enabling thorough grit removal and cleaning throughout the entire cavity, completely eliminating deposited grit and preventing grit buildup that could clog the valve's flow channels. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the front structure of the valve body of the present invention; Figure 2 This is a schematic diagram of the overall adjustable height pushing actuator of the present invention; Figure 3 This is a schematic diagram of the interior of the arc-shaped top sand plate of the present invention; Figure 4 This is a schematic diagram showing the connection relationship between the sandproof outer shell and the rotating mechanism of the present invention; Figure 5 This is a schematic diagram showing the upper and lower connection relationships of the rotating mechanism of the present invention; Figure 6 This is a schematic diagram of the internal structure of the drive mechanism of the present invention; Figure 7 This is a schematic diagram of the rotating mechanism of the present invention; Figure 8 This is a schematic diagram showing the connection relationship between the threaded rod and the gear in this invention; Figure 9 This is a schematic diagram of the adjustment mechanism of the present invention.

[0020] In the diagram: 1. Support frame; 3. Valve body; 31. Valve core assembly; 32. Buffer sand settling chamber; 4. Adjustable height push actuator; 41. Drive mechanism; 411. Protective shell; 412. Motor; 413. Sloping bottom plate; 414. Threaded rod; 42. Rotating mechanism; 421. Connecting block; 4211. Assembly groove; 422. Rotating shaft; 423. Gear; 424. Swing rod; 43. Sandproof shell; 431. Conical shell; 432. Push plate; 44. Adjustment mechanism; 441. First movable block; 4411. Sliding groove; 442. Second movable block; 443. Movable seat; 444. Arc-shaped support plate; 45. Arc-shaped top sand plate; 451. Upper wear-resistant buffer layer; 452. Lower support and adjustment layer. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example: Please refer to Figure 1-2 A manifold-specific single-flow valve with an integrated buffer sand settling chamber includes a support frame 1, a valve body 3, a valve core assembly 31 disposed inside the valve body 3, and a buffer sand settling chamber 32 integrated inside the flow channel of the valve body 3. The bottom of the buffer sand settling chamber 32 is movably equipped with an adjustable height push actuator 4. The adjustable height push actuator 4 includes a drive mechanism 41, a rotation mechanism 42, a sandproof shell 43, an adjustment mechanism 44, and an arc-shaped top sand plate 45. The drive mechanism 41 is used to output rotational power to drive the rotating mechanism 42 connected to its outer side to perform reciprocating movements, thereby causing the two ends of the rotating mechanism 42 to swing up and down. The adjustment mechanism 44 is linked to the top of the rotating mechanism 42 and can move synchronously with the rotating mechanism 42. It is used to adaptively adjust the initial installation height and downward extension stroke of the top arc-shaped sand plate 45 according to the actual working conditions such as the sand content and viscosity of the pipeline medium, so as to adapt to different pipeline sand conveying and buffering sand settling operation requirements. The sandproof shell 43 is covered and disposed on the outer surface of the rotating mechanism 42, including a conical shell 431 and a push plate 432. The conical shell 431 is an overall inclined conical structure, which can block the medium and gravel from entering the interior of the sandproof shell 43, and at the same time guide the pipeline medium and fine gravel to flow smoothly and downward along the inclined surface. The push plate 432 is slidably assembled inside the conical outer shell 431 and can extend and retract synchronously with the swinging motion of the rotating mechanism 42. It completely seals the gap between the outer shells, effectively preventing sand and impurities from entering the interior of the mechanism and avoiding jamming and wear of the rotating mechanism 42. The arc-shaped top sand plate 45 is a double-layer composite structure, including an upper wear-resistant buffer layer 451 and a lower support and adjustment layer 452. The double-layer structure is fixed in one piece and has the properties of wear resistance, impact resistance, buffering and stress relief and structural support. It can effectively receive and lift the sand and gravel deposited in the buffer sand settling chamber 32 to prevent the sand and gravel from accumulating and blocking the flow channel of the valve body 3. The valve core assembly 31 is the core opening and closing structure of the unidirectional valve. It is sealed and slidably assembled inside the main channel of the valve body 3 and is arranged vertically and vertically with the buffer sand settling chamber 32. It can automatically open and close through the medium pressure difference to control the unidirectional flow of the pipeline medium. At the same time, it works with the buffer sand settling chamber 32 to achieve medium flow buffering and sand and gravel sedimentation and separation, ensuring the stability of pipeline opening and closing. The buffer sedimentation chamber 32 is an integrated cavity structure with a concave flow channel in the valve body 3. The cavity volume is adapted to the pipeline medium flow rate and sand-containing conditions. It can decelerate and buffer the high-speed flowing medium, reduce the medium velocity, and allow the sand and gravel carried in the medium to settle fully under the action of gravity, thereby achieving the separation of the medium and sand and gravel and reducing the scouring and wear of sand and gravel on the valve core assembly 31 and valve body 3 from the source.

[0023] Example 2: Based on Example 1, as follows Figure 3-9As shown, the drive mechanism 41 includes a protective shell 411. A motor 412 is installed inside the top of the protective shell 411, and the top of the protective shell 411 is fixedly connected to the outer surface of the motor 412. A sloping bottom plate 413 is provided on the top of the protective shell 411, and the top of the protective shell 411 is fixedly connected to the bottom of the sloping bottom plate 413. A threaded rod 414 is provided on the output shaft end of the motor 412, and the bottom of the threaded rod 414 is correspondingly connected to the output shaft end of the motor 412. The outer surface of the threaded rod 414 is meshed and transmitted with the rotating mechanism 42. The drive mechanism 41 serves as the power core of the entire jacking sand-cleaning mechanism. Its internal motor 412, threaded rod 414, and protective shell 411 are integrated into a single assembly structure, enabling the output of stable and controllable rotational power. Meanwhile, the inclined bottom plate 413 can optimize the medium flow effect, and the protective shell 411 can provide all-round protection for the internal motor 412 and threaded rod 414 components, effectively isolating the pipeline medium, gravel and water vapor from corrosion, ensuring continuous and automated operation of the top pushing sand cleaning operation without frequent manual intervention, and effectively improving the overall operating efficiency and service life of the equipment.

[0024] The rotating mechanism 42 includes two symmetrically arranged connecting blocks 421. Each of the two connecting blocks 421 has an assembly groove 4211 on its top. Each assembly groove 4211 has a rotating shaft 422 inside it, and the assembly groove 4211 is rotatably connected to both ends of the rotating shaft 422. Each of the two rotating shafts 422 has a gear 423 in the middle, and the middle of each of the two rotating shafts 422 is fixedly sleeved with the center of the gear 423. The outer surfaces of the two gears 423 are meshed with the outer surface of the threaded rod 414.

[0025] Both ends of the two gears 423 are equipped with swing rods 424, and both ends of the two gears 423 are fixedly connected to the bottom ends of the swing rods 424. The top ends of the two swing rods 424 are fixedly connected to the bottom of the adjusting mechanism 44. By relying on the meshing transmission between the threaded rod 414 and the gears 423 on both sides, the rotating shaft 422 and the swing rods 424 are driven to swing back and forth synchronously, realizing symmetrical linkage operation on both sides. This structure completely solves the problems of uneven force distribution, unilateral load distribution, and sand cleaning deviation in traditional single-arm jacking structures. The synchronous swing of the swing rods 424 on both sides can ensure that the top adjusting mechanism 44 and the arc-shaped top sand plate 45 are evenly stressed and the lifting and lowering are stable without deviation. At the same time, the swing rods 424 are made of high-strength alloy material, which has excellent bending resistance and fatigue resistance, can be adapted to high-frequency reciprocating swing conditions for a long time, and has high structural strength and is not easy to deform or be damaged.

[0026] Among them, the two swing rods 424 are made of high-strength alloy material, which has the characteristics of bending resistance and fatigue resistance, and can be adapted to high-frequency reciprocating swing operation.

[0027] The adjustment mechanism 44 includes two symmetrically arranged first movable blocks 441. The bottoms of the two first movable blocks 441 are fixedly connected to the top of the swing rod 424. Each of the two first movable blocks 441 has a sliding groove 4411 on its top. A second movable block 442 is disposed inside the sliding groove 4411, and the sliding groove 4411 is movably connected to the bottom sides of the second movable block 442. The tops of the two second movable blocks 442 are movably fitted with a movable seat 443 adapted for lifting and adjusting. Through the multi-stage sliding cooperation structure of the first movable block 441, the second movable block 442 and the movable seat 443, it can synchronously move in conjunction with the swinging motion of the rotating mechanism 42. It can adaptively adjust the initial installation height and downward extension stroke of the arc-shaped top sand plate 45 according to different actual working conditions such as sand content, viscosity and flow rate of the pipeline medium.

[0028] The top of the movable seat 443 is provided with an arc-shaped support plate 444, and the top of the movable seat 443 is fixedly connected to both ends of the inner surface of the arc-shaped support plate 444. The top arc-shaped outer surface of the arc-shaped support plate 444 is fitted and fixedly connected to the bottom arc-shaped inner surface of the arc-shaped top sand plate 45 to achieve stable support and synchronous transmission.

[0029] The bottom end of the conical shell 431 of the sandproof shell 43 is sealed and fixed to the top end of the protective shell 411. The inner side of the push plate 432 slides against the outer wall of the swing rod 424. The push plate 432 swings and extends synchronously with the swing rod 424, completely sealing the movement gap of the conical shell 431 and preventing sand and impurities from entering the interior of the mechanism.

[0030] The upper wear-resistant buffer layer 451 of the arc-shaped top sand plate 45 is made of polyurethane wear-resistant coating material, and the lower support and adjustment layer 452 is made of hard stainless steel. The two-layer structure is integrally sintered. The curvature of the arc-shaped top sand plate 45 is adapted to the curvature of the inner cavity of the buffer sand settling chamber 32. By adopting the double-layer composite structure of the arc-shaped top sand plate 45, the upper wear-resistant buffer layer 451 is made of polyurethane wear-resistant coating, which has excellent anti-erosion and buffering performance and can resist the impact and wear of high-speed media and sand. The lower support and adjustment layer 452 is made of hard stainless steel, which has strong structural rigidity and good support stability. The two-layer integral sintering takes into account both toughness and strength. At the same time, the curvature of the arc-shaped top sand plate 45 is perfectly adapted to the inner cavity of the buffer sand settling chamber 32, which can realize sand removal and cleaning operations throughout the entire cavity without dead corners, thoroughly removing the sand and gravel deposited inside the cavity and avoiding the accumulation of sand and gravel that blocks the flow channel of valve body 3.

[0031] The working principle of this invention is as follows: During operation, the entire equipment is stably installed and fixed by the support frame 1. After the sand-containing medium in the pipeline enters the main channel inside the valve body 3, the valve core assembly 31, which is sealed and slidably assembled inside the valve body 3, automatically opens and closes by utilizing the pressure difference of the medium in the pipeline. This controls the unidirectional flow of the medium in the pipeline, prevents backflow of the medium, and ensures the stability of the medium delivery in the manifold. During the flow of the medium through the flow channel of valve body 3, it first enters the buffer sand settling chamber 32 integrated inside the flow channel of valve body 3. The buffer sand settling chamber 32 with the concave integrated cavity structure of valve body 3 slows down and buffers the high-speed flowing medium, effectively reducing the medium flow velocity, so that the sand and gravel carried inside the medium can settle fully under the action of gravity, realizing the initial separation of medium and sand and gravel, reducing the scouring and wear of high-speed sand-containing medium on valve core assembly 31 and inner wall of valve body 3 from the source. After settling, the gravel accumulates at the bottom of the buffer settling chamber 32. To prevent the long-term accumulation of gravel from causing blockage of the flow channel of the valve body 3, the adjustable height push actuator 4, which is installed at the bottom of the buffer settling chamber 32, automatically starts to operate. During operation, the drive mechanism 41 in the adjustable height push actuator 4 provides power support. The protective shell 411 inside the drive mechanism 41 provides all-round protection for the motor 412 and threaded rod 414 components fixed at the top. The inclined bottom plate 413 fixed at the top of the protective shell 411 optimizes the medium flow effect and effectively prevents sand and medium from corroding the power components. When the motor 412 is working, it drives the threaded rod 414 connected to the bottom end to rotate stably through the output shaft. Power is transmitted by the meshing relationship between the outer surface of the threaded rod 414 and the rotating mechanism 42. The rotating mechanism 42 is connected by two sets of symmetrically arranged connecting blocks 421. When the threaded rod 414 rotates, it drives the meshing gears 423 on both sides to rotate synchronously. The gears 423 rotate stably in the mounting groove 4211 of the connecting block 421 through the rotating shaft 422. This drives the high-strength alloy swing rods 424 fixed at both ends of the gears 423 to swing symmetrically up and down, realizing the conversion of power from rotational motion to linear swing motion. The synchronous linkage of the swing rods 424 on both sides can effectively ensure that the top structure is subjected to uniform force and without deviation. During the swinging process, the swing rods 424 synchronously drive the overall movement of the adjustment mechanism 44 fixed at the top. The adjustment mechanism 44 moves synchronously with the swing rod 424 through the first movable block 441 symmetrically arranged at the bottom. The second movable block 442 assembled inside the sliding groove 4411 at the top of the first movable block 441 and the top movable seat 443 have a multi-stage sliding fit structure. The mechanism can adaptively adjust the working state according to the actual working conditions such as the sand content, viscosity and flow rate of the pipeline medium. It can accurately change the initial installation height and downward extension stroke of the top arc-shaped sand plate 45 to adapt to the sand cleaning operation needs of different sand accumulation and different media working conditions. The movable seat 443 is fixed to the bottom of the arc-shaped top sand plate 45 by the arc-shaped support plate 444 fixedly connected to the top, so as to achieve stable support and synchronous transmission, and ensure that the arc-shaped top sand plate 45 swings smoothly with the adjustment mechanism 44. During operation, the sandproof shell 43 covering the outside of the rotating mechanism 42 provides protection throughout the process. The conical shell 431 adopts a sloping conical structure, which can actively block sand and gravel from entering the interior of the mechanism and guide the medium to flow smoothly. At the same time, the push plate 432, which is slidably assembled inside the conical shell 431, can extend and retract synchronously with the swinging action of the swing rod 424, completely sealing the movement gap of the mechanism and preventing sand and gravel and impurities from entering the transmission structure and causing jamming and wear, thus ensuring the continuous and stable operation of the transmission mechanism. Finally, the sand cleaning operation is completed by the arc-shaped top sand plate 45 whose curvature is adapted to the inner cavity of the buffer sand settling chamber 32. The arc-shaped top sand plate 45 adopts a double-layer composite structure with an upper wear-resistant buffer layer 451 and a lower support and adjustment layer 452 integrally sintered. The upper wear-resistant buffer layer 451 with polyurethane wear-resistant coating can resist the impact and wear of high-speed media and sand and gravel, and realize buffering and force relief. The lower support and adjustment layer 452 made of hard stainless steel ensures the rigidity and support stability of the overall structure. During the reciprocating pushing and swinging process, the sand and gravel deposited inside the buffer sand settling chamber 32 are lifted and pushed clean without dead angles, thoroughly removing the sand accumulation inside the chamber and preventing sand and gravel from clogging the flow channel of valve body 3. Combined with the one-way opening and closing function of valve core assembly 31 and the settling and buffering function of buffer sand settling chamber 32, the one-way opening and closing of the single flow valve, media buffering, automatic sand settling, and adaptive sand cleaning are integrated to continuously ensure the stable, efficient, and long-term operation of the manifold system.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A manifold-specific single-flow valve with an integrated buffer sand settling chamber, comprising a support frame (1), a valve body (3), a valve core assembly (31) disposed inside the valve body (3), and a buffer sand settling chamber (32) integrated inside the flow channel of the valve body (3), wherein an adjustable height push actuator (4) is movably mounted at the bottom of the buffer sand settling chamber (32), characterized in that: The adjustable height pushing actuator (4) includes a drive mechanism (41), a rotating mechanism (42), a sandproof shell (43), an adjustment mechanism (44), and an arc-shaped top sand plate (45). The drive mechanism (41) is used to output rotational power to drive the rotating mechanism (42) connected to its outer side to perform reciprocating movements, thereby driving the two ends of the rotating mechanism (42) to swing up and down. The adjustment mechanism (44) is mounted on the top of the rotating mechanism (42) and can move synchronously with the rotating mechanism (42). It is used to adaptively adjust the initial installation height and downward extension stroke of the top arc-shaped sand plate (45) according to the actual working conditions such as the sand content and viscosity of the pipeline medium. The sandproof shell (43) is covered and disposed on the outer surface of the rotating mechanism (42), including a conical shell (431) and a push plate (432). The conical shell (431) is an overall inclined conical structure, which can prevent the medium gravel from entering the interior of the sandproof shell (43). The push plate (432) is slidably assembled inside the conical shell (431), and can move synchronously with the swinging motion of the rotating mechanism (42), sealing the gap between the shells throughout the process, effectively blocking sand and impurities from entering the interior of the mechanism, and preventing the rotating mechanism (42) from jamming or wearing out; The arc-shaped top sand plate (45) is a double-layer composite structure, including an upper wear-resistant buffer layer (451) and a lower support and adjustment layer (452). The double-layer structure is fixed in one piece and has wear-resistant and impact-resistant properties, buffering and stress relief, and structural support performance. It can effectively receive and lift the sand and gravel deposited in the buffer sand settling chamber (32) to prevent the sand and gravel from accumulating and blocking the flow channel of the valve body (3). The valve core assembly (31) is the core opening and closing structure of the single-flow valve. It is sealed and slidably assembled inside the main channel of the valve body (3) and is arranged vertically and vertically with the buffer sand settling chamber (32). It can automatically open and close through the medium pressure difference, control the unidirectional flow of the pipeline medium, and at the same time cooperate with the buffer sand settling chamber (32) to achieve medium flow buffering and sand and gravel sedimentation and separation, ensuring the stability of pipeline opening and closing. The buffer sedimentation chamber (32) is an integrated cavity structure with a concave flow channel in the valve body (3). The cavity volume is adapted to the flow rate of the pipeline medium and the sand-containing working conditions. It can decelerate and buffer the high-speed flowing medium, reduce the medium flow velocity, and allow the sand and gravel carried in the medium to settle fully under the action of gravity, thereby achieving the separation of the medium and the sand and gravel and reducing the scouring and wear of the sand and gravel on the valve core assembly (31) and the valve body (3) from the source.

2. The manifold-specific check valve with integrated buffer grit chamber according to claim 1, characterized in that: The drive mechanism (41) includes a protective shell (411), a motor (412) is fixedly connected inside the top of the protective shell (411), a sloping bottom plate (413) is fixedly connected to the top of the protective shell (411), and a threaded rod (414) is correspondingly connected to the output shaft end of the motor (412). The outer surface of the threaded rod (414) is meshed and connected to the rotating mechanism (42).

3. A manifold-specific check valve with an integrated buffer grit chamber as described in claim 2, characterized in that: The rotating mechanism (42) includes two symmetrically arranged connecting blocks (421). The top of each of the two connecting blocks (421) is provided with an assembly groove (4211). A rotating shaft (422) is rotatably connected inside the assembly groove (4211). A gear (423) is fixedly sleeved in the middle of each of the two rotating shafts (422), and the outer surfaces of the two gears (423) mesh with the outer surface of the threaded rod (414).

4. A manifold-specific check valve with an integrated buffer grit chamber as described in claim 3, characterized in that: Both ends of the two gears (423) are fixedly connected to swing rods (424), and the top ends of the two swing rods (424) are fixedly connected to the bottom of the adjustment mechanism (44); Among them, the two swing arms (424) are made of high-strength alloy material.

5. A manifold-specific check valve with an integrated buffer grit chamber according to claim 4, characterized in that: The adjustment mechanism (44) includes two symmetrically arranged first movable blocks (441). The bottoms of the two first movable blocks (441) are fixedly connected to the top of the swing rod (424) in a corresponding manner. The tops of the two first movable blocks (441) are provided with sliding grooves (4411). A second movable block (442) is movably connected inside the sliding grooves (4411). The tops of the two second movable blocks (442) are movably fitted with movable seats (443) adapted for lifting and adjusting.

6. A manifold-specific check valve with an integrated buffer grit chamber according to claim 5, characterized in that: The top of the movable seat (443) is fixedly connected to an arc-shaped support plate (444), and the top arc-shaped outer surface of the arc-shaped support plate (444) is fixedly connected to the bottom arc-shaped inner surface of the arc-shaped top sand plate (45).

7. A manifold-specific check valve with an integrated buffer grit chamber according to claim 1, characterized in that: The bottom end of the conical shell (431) of the sandproof shell (43) is sealed and fixed to the top end of the protective shell (411). The inner side of the push plate (432) slides against the outer wall of the swing rod (424). The push plate (432) swings and extends synchronously with the swing rod (424), and the movement gap of the conical shell (431) is completely sealed.

8. A manifold-specific check valve with an integrated buffer grit chamber according to claim 1, characterized in that: The upper wear-resistant buffer layer (451) of the arc-shaped top sand plate (45) is made of polyurethane wear-resistant coating material, and the lower support and adjustment layer (452) is made of hard stainless steel material. The double-layer structure is integrally sintered and formed. The arc curvature of the arc-shaped top sand plate (45) is adapted to the inner curvature of the buffer sand settling chamber (32), and can also be used in conjunction with the lifting stroke of the adjustment mechanism (44).

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