Leakage-free butt joint dry type valve conveyor

Abstract

The invention provides a leakage-free butt joint dry type valve conveyor, and relates to the technical field of leakage-free dry type valves, the leakage-free butt joint dry type valve conveyor comprises a conveying pipe, a butt joint pipe, an intelligent central processing unit, a butt joint mechanism and a sealing mechanism, a pressure transmitter is installed on the arc surface of the conveying pipe, and the intelligent central processing unit is installed on the upper end surface of the conveying pipe; the sealing mechanism is arranged on the side, close to each other, of the butt-joint pipe and the conveying pipe and comprises a valve pipe, the surface of the valve pipe is fixedly communicated with the butt-joint pipe through a butt-joint mechanism, one end of the valve pipe is fixedly communicated with the inner wall of the bottom end of the conveying pipe, and the other end of the valve pipe is fixedly communicated with the pressure transmitter. The arc surface of the valve pipe is rotationally connected with a valve rod. According to the valve pipeline, the problem that in the prior art, due to the fact that most valve pipelines are in butt joint with the pipelines directly through threaded connection pipe heads, irreversible deformation damage occurs to threads between the pipelines in the long-time operation and use process, and then butt joint loosening and leakage occur between the pipelines is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of leak-free dry valves, and particularly to a leak-free docking dry valve conveyor. Background Art

[0002] A leak-free docking dry valve conveyor is a device used for precisely conveying substances such as gases, liquids, or powders, and is particularly suitable for application scenarios that require strict control of leakage and prevention of contamination. This device is usually widely used in industries such as semiconductors, pharmaceuticals, and chemicals, and is relatively common in industrial production processes.

[0003] Prior art such as the invention with the publication number CN116480782A discloses a dry-separated oil-gas coupling valve. This patent includes a housing assembly, a valve core assembly, a valve seat assembly, and a sealing assembly. A chamber is formed inside the housing assembly, and the valve core assembly, valve seat assembly, and sealing assembly are all arranged in the chamber. The valve seat assembly includes a valve seat body, the sealing assembly is fixed on the valve seat body, and the valve seat body can move up and down relative to the housing assembly; one end of the valve core assembly passes through the valve seat body and can move up and down relative to the housing assembly. The dry-separated oil-gas coupling valve of this invention, through an optimized design in terms of structure, enables the oil-gas coupling valve to be completely free of oil and gas leakage during the processes of loading, docking and placement, and opening and closing, ensuring the reliability of the connection between the oil-gas coupling valve and the oil-gas recovery joint.

[0004] During industrial production processes, it has been found that in the prior art, most valve pipes directly use threaded connection pipe heads to dock with pipes. However, during long-term operation and use, the threads between the pipes will undergo irreversible deformation and damage, thereby leading to problems such as loose docking and leakage between the pipes. Summary of the Invention

[0005] The purpose of the present invention is to solve the drawbacks in the prior art that most valve pipes in the prior art directly use threaded connection pipe heads to dock with pipes, and during long-term operation and use, the threads between the pipes will undergo irreversible deformation and damage, thereby leading to problems such as loose docking and leakage between the pipes.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a leak-free docking dry valve conveyor, comprising a conveying pipe, a docking pipe, an intelligent central processing unit, a docking mechanism and a sealing mechanism, wherein a pressure transmitter is installed on the arc surface of the conveying pipe, the intelligent central processing unit is installed on the upper end surface of the conveying pipe, a flow meter is installed on the end of the arc surface of the conveying pipe close to the pressure transmitter, the sealing mechanism is arranged on the side where the docking pipe and the conveying pipe are close to each other, the sealing mechanism comprises a valve pipe, the surface of the valve pipe is fixedly connected to the docking pipe by means of the docking mechanism, one end of the valve pipe is fixedly connected to the inner wall of the bottom end of the conveying pipe, the arc surface of the valve pipe is rotatably connected to a valve stem, the bottom end of the valve stem is fixedly connected to a driving gear, the inner wall of the valve pipe is fixedly connected to a fixing rod, the bottom end of the fixing rod is fixedly connected to a fixing ring, the fixing ring and the valve pipe are located on the same central axis, the inner wall of the fixing ring is slidably penetrated by a driving rod, the side of the fixing ring close to the driving gear is rotatably connected to a driven gear, the inner wall of the driven gear and the arc surface of the driving rod are threadedly penetrated, the driving rod is close to the conveying pipe. One end is fixedly connected with a closing plate, the surface of the fixing ring is fixedly connected with a protective shell, the driven gear and the driving gear are located inside the protective shell, the end of the driving rod away from the closing plate is fixedly connected with a guide block, both sides of the guide block close to the end of the butt joint are fixedly connected with push rods, the inner wall of the butt joint is fixedly connected with a sealing ring, the inner wall of the sealing ring is slidably penetrated by a moving column, through holes are opened on both sides of the circular arc surface of the moving column, the through holes are connected with one end of the moving column, and both ends of the moving column are fixedly connected with slides, the A sliding rod slides through the inner wall of the slide plate, one end of the sliding rod is fixedly connected to the surface of the sealing ring, the arc surface of the sliding rod is sleeved with a spring, the two ends of the spring are respectively fixedly connected to the slide plate and the sliding rod, one end of the push rod abuts against the two side surfaces of the moving column, the arc surface of the docking tube is fixedly connected with a connecting ring, the inner wall of the valve pipe is fixedly connected with a connecting frame, the inner wall of the connecting frame is plugged into the surface of the connecting ring, and second sealing rings are fixedly connected on both sides of the arc surface of the connecting ring, and the surface of the second sealing ring abuts against the surface of the connecting frame.

[0007] Preferably, a sealing plate is fixedly connected to the inner wall of the valve tube, a sealing hole is opened on the surface of the sealing plate, a first sealing ring is fixedly connected to the arc surface of the guide block, the surface of the first sealing ring abuts against the surface of the sealing plate, and the arc surface of the guide block is clamped with the inner wall of the sealing hole.

[0008] Preferably, a guide block is fixedly connected to the bottom end of the inner wall of the movable column, and the cross-section of the guide block is in a pointed cone shape.

[0009] Preferably, a limiting ring is fixedly connected to one end surface of the movable column, a limiting groove is provided on the surface of the sealing ring, and the cross-sectional size of the limiting groove is matched with the cross-sectional size of the limiting ring.

[0010] Preferably, the cross-section of the guiding block is diamond-shaped, and the cross-sectional dimension of the guiding block is adapted to the cross-sectional dimension of the sealing hole.

[0011] Preferably, the docking mechanism includes a rotating ring. The inner wall of the rotating ring is threadedly connected to the arc surface of the valve pipe. Both sides of the arc surface of the rotating ring are fixedly connected with pull plates. One end of the rotating ring close to the docking pipe is rotatably connected with a moving ring. One end of the moving ring close to the docking pipe is fixedly connected with a positioning frame. The positioning frame is located on the arc surface of the valve pipe. Four embedding holes are evenly formed in the arc surface of the valve pipe. The bottom cross-section of the embedding hole is constricted. A top bead is slidably connected to the inner wall of the embedding hole. The top bead is a stainless steel bead. The cross-sectional dimension of the top bead is adapted to the cross-sectional dimension of the embedding hole. The upper surface of the top bead abuts against the inner wall of the positioning frame. An embedding ring is fixedly connected to the arc surface of the docking pipe. The cross-section of the embedding ring is concave. The inner wall of the embedding ring is clamped with the surface of the top bead.

[0012] Preferably, a recovery groove is formed on the inner wall surface of the positioning frame. The cross-sectional dimension of the recovery groove is adapted to the cross-sectional dimension of the top bead.

[0013] Preferably, a guiding groove is formed in the arc surface of the valve pipe corresponding to the position of the positioning frame. The inner wall of the guiding groove is slidably connected to the inner wall surface of the positioning frame.

[0014] Preferably, a limiting mechanism is provided at the position of the valve rod corresponding to the arc surface of the valve pipe. The limiting mechanism includes a toothed ring. The inner wall of the toothed ring is fixedly connected to the arc surface of the valve rod. A guide plate is fixedly connected to the surface of the valve pipe. The cross-section of the guide plate is "T"-shaped. A rack is meshed with the tooth surface of the toothed ring. The inner wall of the rack is slidably connected to the surface of the guide plate. A driving cylinder is fixedly connected to the surface of the valve pipe. The output end of the driving cylinder is fixedly connected to one end of the rack. A docking ring is fixedly connected to the upper surface of the toothed ring. A positioning rod is fixedly connected to one side surface of the valve pipe. The cross-section of the positioning rod is rectangular. The valve rod and the positioning rod are slidably penetrated by the same clamping plate. A tension spring is sleeved on the surface of the positioning rod. Two ends of the tension spring are respectively fixedly connected to the positioning rod and the clamping plate. The cross-sections of the clamping plate and the docking ring on the side close to each other are conical teeth. An electric push rod is fixedly connected to the surface of the valve pipe. The output end of the electric push rod is fixedly connected to one side surface of the clamping plate.

[0015] Preferably, the clamping plate is a cemented carbide plate. The cross-sectional dimension of the clamping plate is adapted to the cross-sectional dimension of the docking ring.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are as follows. 1. In the present invention, through the setting of a sealing mechanism, with its multi-level sealing design, precise mechanical fitting, and fluid control, it ensures that there is no leakage during the transportation of liquids and gases. Through the transmission cooperation between the driving gear and the driven gear, and the interaction of components such as the sealing ring, sliding plate, and diversion block, it guarantees high-efficiency sealing and fluid control, and is applicable to application scenarios with strict sealing requirements.

[0017] 2. In the present invention, through the setting of a docking mechanism, the rotating ring can drive the moving ring to slide, enabling the positioning frame to protect and limit the position of the counter ball. At the same time, through the extrusion and fixation interaction of the counter balls, it ensures the tight connection and stability between the valve pipe and the docking pipe. Meanwhile, the combined design of the inlay hole and the counter ball effectively realizes positioning and sealing, avoiding leakage problems. Additionally, the design of the recovery groove and the guiding groove further enhances the stability of the system and the smoothness of operation.

[0018] 3. In the present invention, through the setting of a limiting mechanism, it can effectively and precisely position and control the position of the valve stem. At the same time, the combination of the electric push rod and the driving cylinder provides precise operation control, which is applicable to industrial equipment that requires high precision and high durability, and helps to better perform the docking and limiting fixation operation between the entire conveying pipe and the docking pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 1 is a schematic three-dimensional structure diagram of a leak-free docking dry valve conveyor proposed by the present invention; Figure 2 FIG. 2 is a schematic cross-sectional structure diagram of the sealing mechanism of a leak-free docking dry valve conveyor proposed by the present invention; Figure 3 FIG. 3 is a schematic partial structure diagram of the sealing mechanism of a leak-free docking dry valve conveyor proposed by the present invention; Figure 4 FIG. 4 is a schematic partial structure diagram of a leak-free docking dry valve conveyor Figure 3 proposed by the present invention; Figure 5 FIG. 5 is a schematic enlarged structure diagram at position A of a leak-free docking dry valve conveyor Figure 2 proposed by the present invention; Figure 6 FIG. 6 is a schematic structure diagram of the docking mechanism of a leak-free docking dry valve conveyor proposed by the present invention; Figure 7 FIG. 7 is a schematic partial structure diagram of a leak-free docking dry valve conveyor Figure 2 proposed by the present invention; Figure 8 FIG. 8 is a schematic structure diagram of the limiting mechanism of a leak-free docking dry valve conveyor proposed by the present invention; Figure 9The present invention provides an electrical component control flowchart for a leak-free docking dry valve conveyor.

[0020] Legend: 1. Conveyor pipe; 2. Docking pipe; 3. Intelligent central processor; 4. Pressure transmitter; 5. Flowmeter; 6. Sealing mechanism; 601. Valve pipe; 602. Valve rod; 603. Driving gear; 604. Driven gear; 605. Fixed rod; 606. Fixed ring; 607. Sealing plate; 608. Sealing hole; 609. Driving rod; 610. Closing plate; 611. Guide block; 612. First sealing ring; 613. Ejector rod; 614. Protective shell; 615. Sealing ring; 616. Moving column; 617. Through hole; 618. Flow guide block; 619. Limit ring; 620. Limit groove; 621. Connecting ring; 622. Connecting frame; 623. Second sealing ring; 624. Slide rod; 625. Spring; 626. Slide plate; 7. Docking mechanism; 71. Rotating ring; 72. Pulling plate; 73. Moving ring; 74. Positioning frame; 75. Guide groove; 76. Top bead; 77. Insertion hole; 78. Insertion ring; 79. Recovery groove; 8. Limiting mechanism; 81. Tooth ring; 82. Rack; 83. Guide plate; 84. Driving cylinder; 85. Electric push rod; 86. Clamping plate; 87. Docking ring; 88. Positioning rod; 89. Pulling spring. Detailed implementation manners

[0021] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0023] Such as Figure 1 And Figure 9As shown in the figure, the present invention provides a leak-free docking dry valve conveyor, which includes a conveying pipe 1, a docking pipe 2, an intelligent central processor 3, a docking mechanism 7 and a sealing mechanism 6. Among them, after the docking and limiting between the entire conveying pipe 1 and the docking pipe 2 are carried out, the output operation between liquid and gas is used. At this time, first, the valve pipe 601 provided at one end of the conveying pipe 1 is docked with the docking pipe 2, and the docking mechanism 7 provided on the surface of the valve pipe 601 is used for auxiliary operation. Then, the opening and closing operation is carried out through the sealing mechanism 6 provided inside the valve pipe 601, so that the inside of the docking pipe 2 and the conveying pipe 1 can be conveniently communicated and closed, and at the same time, the leak-free treatment operation is carried out. During this process, the position of the valve rod 602 can also be rotated by using the limiting mechanism 8 provided on the surface of the valve pipe 601, so as to electrically control the opening and closing of the inner wall of the valve pipe 601. When the liquid and gas are flowing, the flow meter 5 and the pressure transmitter 4 provided on the surface of the conveying pipe 1 can be used for monitoring, and the inner wall of the conveying pipe 1 can be monitored and protected. At the same time, the received data will be transmitted to the intelligent central processor 3, so as to effectively monitor the inside of the entire pipeline.

[0024] Next, the specific settings and functions of its sealing mechanism 6, docking mechanism 7 and limiting mechanism 8 will be described in detail.

[0025] Such as Figure 2 、 Figure 3 、 Figure 4 And Figure 5As shown, the sealing mechanism 6 includes a valve pipe 601. The surface of the valve pipe 601 is fixedly communicated with the docking pipe 2 by means of a docking mechanism 7. One end of the valve pipe 601 is fixedly communicated with the inner wall of the bottom end of the conveying pipe 1 to ensure the smooth flow of the fluid in the conveying pipe 1 through the valve pipe 601. A valve rod 602 is rotatably connected to the arc surface of the valve pipe 601, so that the valve rod 602 can rotate or adjust within the valve pipe 601 to control the flow of the fluid. A driving gear 603 is fixedly connected to the bottom end of the valve rod 602. A fixed rod 605 is fixedly connected to the inner wall of the valve pipe 601. A fixed ring 606 is fixedly connected to the bottom end of the fixed rod 605. The fixed ring 606 and the valve pipe 601 are on the same central axis, ensuring the stable position of the fixed ring 606 within the valve pipe 601. A driving rod 609 slidably penetrates through the inner wall of the fixed ring 606. The driving rod 609 realizes the driving effect with the valve rod 602 through the threaded cooperation with the driven gear 604. A driven gear 604 is rotatably connected to one side of the fixed ring 606 close to the driving gear 603. The driving gear 603 cooperates with the driven gear 604 to open or close the valve by rotation. The inner wall of the driven gear 604 is threadedly penetrated by the arc surface of the driving rod 609. One end of the driving rod 609 close to the conveying pipe 1 is fixedly connected with a closing plate 610. A protective shell 614 is fixedly connected to the surface of the fixed ring 606. The protective shell 614 wraps the driving gear 603 and the driven gear 604 inside to prevent external factors from affecting their normal operation. The driven gear 604 and the driving gear 603 are located inside the protective shell 614. One end of the driving rod 609 away from the closing plate 610 is fixedly connected with a guiding block 611. The cooperation between the guiding block 611 and the sealing hole 608 is more precise, avoiding unnecessary gaps and ensuring the sealing effect of the sealing hole 608. On both sides of one end of the guiding block 611 close to the docking pipe 2, a top rod 613 is fixedly connected. A sealing ring 615 is fixedly connected to the inner wall of the docking pipe 2. A moving column 616 slidably penetrates through the inner wall of the sealing ring 615. Through holes 617 are formed on both sides of the arc surface of the moving column 616. The through holes 617 are communicated with one end of the moving column 616. Slide plates 626 are fixedly connected to both ends of the moving column 616. A sliding rod 624 slidably penetrates through the inner wall of the slide plate 626. One end of the sliding rod 624 is fixedly connected to the surface of the sealing ring 615. A spring 625 is sleeved on the arc surface of the sliding rod 624. The extrusion force generated by the spring 625 can make the moving column 616 slide and reset. Both ends of the spring 625 are fixedly connected to the slide plate 626 and the sliding rod 624 respectively. One end of the top rod 613 abuts against the two side surfaces of the moving column 616. The fixed rod can squeeze and regulate the position of the moving column 616. An engagement ring 621 is fixedly connected to the arc surface of the docking pipe 2. An engagement frame 622 is fixedly connected to the inner wall of the valve pipe 601. By this plugging connection method, the connection stability is increased. The inner wall of the engagement frame 622 is plugged with the surface of the engagement ring 621. Second sealing rings 623 are fixedly connected to both sides of the arc surface of the engagement ring 621.The second sealing ring 623 is in close contact with the surface of the connection frame 622, ensuring a more secure sealing effect. The surface of the second sealing ring 623 abuts against the surface of the connection frame 622. A sealing plate 607 is fixedly connected to the inner wall of the valve pipe 601. A sealing hole 608 is formed on the surface of the sealing plate 607. A first sealing ring 612 is fixedly connected to the arc surface of the guiding block 611. The surface of the first sealing ring 612 abuts against the surface of the sealing plate 607. The first sealing ring 612 is used in cooperation between the guiding block 611 and the sealing plate 607 to ensure that there is no fluid leakage. The arc surface of the guiding block 611 is clamped with the inner wall of the sealing hole 608. A flow guiding block 618 is fixedly connected to the bottom end of the inner wall of the moving column 616. The cross section of the flow guiding block 618 is in a sharp cone shape, optimizing the flow path of the fluid and reducing the impact of the fluid on the equipment. A limiting ring 619 is fixedly connected to one end surface of the moving column 616. A limiting groove 620 is formed on the surface of the sealing ring 615. In cooperation with the limiting groove 620, the positioning accuracy of the moving column 616 is ensured, preventing its excessive displacement or deformation. The cross-sectional size of the limiting groove 620 is adapted to the cross-sectional size of the limiting ring 619. The cross section of the guiding block 611 is in a rhombus shape, and the cross-sectional size of the guiding block 611 is adapted to the cross-sectional size of the sealing hole 608.,

[0026] When connecting and communicating the conveying pipe 1 with the docking pipe 2, first, insert and fix them with the docking mechanism 7, and then rotate the valve stem 602 on the surface of the valve pipe 601 with the limiting mechanism 8. When the valve stem 602 rotates clockwise, the driving gear 603 fixed at the bottom end of the valve stem 602 will drive the driven gear 604 through which the arc surface of the driving rod 609 is threaded to rotate, so that the driving rod 609 slides horizontally along the fixed ring 606 in the valve pipe 601. At this time, the closing plate 610 at one end of the driving rod 609 is separated from the surface of the valve pipe 601 near the conveying pipe 1. At this time, the valve pipe 601 and the conveying pipe 1 will be connected. At the same time, the guiding block 611 at the other end of the driving rod 609 is separated from the sealing plate 607, so that the sealing hole 608 is opened. Then, the ejector rods 613 fixed at both ends of the arc surface of the guiding block 611 will push the moving column 616 in the docking pipe 2 to move, so that the moving column 616 slides along the sliding rod 624 with the sliding plates 626 at both ends, and at the same time overcomes the extrusion force generated by the spring 625 on the arc surface of the sliding rod 624 until the moving column 616 moves to the maximum moving distance. At this time, the through holes 617 on both sides of the arc surface of the moving column 616 will be located inside the sealing ring 615. At this time, the entire docking pipe 2, valve pipe 601 and conveying pipe 1 are in a connected state. When the valve stem 602 rotates counterclockwise, the moving column 616 will drive the moving column 616 to be clamped with the sealing ring 615 by the extrusion force generated by the spring 625, so that the moving column 616 is closed with the inner wall of the docking pipe 2. At the same time, the closing plate 610 at one end of the driving rod 609 will close the inner wall of the valve pipe 601 near the conveying pipe 1, and the guiding block 611 fixed at the other end of the driving rod 609 will close the sealing hole 608 opened on the surface of the sealing plate 607 in the valve pipe 601. At this time, the entire conveying pipe 1 and the valve pipe 601 are in a closed state.

[0027] Such as Figure 6 And Figure 7As shown in the figure, the docking mechanism 7 includes a rotating ring 71. The inner wall of the rotating ring 71 is threadedly connected to the arc surface of the valve pipe 601. The threaded connection ensures a tight fit between the rotating ring 71 and the valve pipe 601, enabling the control of rotation. On both sides of the arc surface of the rotating ring 71, there are fixedly connected pull plates 72. The pull plates 72 can be used to rotate the position of the rotating ring 71. One end of the rotating ring 71 close to the docking pipe 2 is rotatably connected to a moving ring 73. One end of the moving ring 73 close to the docking pipe 2 is fixedly connected to a positioning frame 74. The positioning frame 74 is located on the arc surface of the valve pipe 601, playing a role of guiding and fixing, ensuring the accuracy and stability of the moving ring 73 during operation. The positioning frame 74 is located on the arc surface of the valve pipe 601. Four embedding holes 77 are evenly opened on the arc surface of the valve pipe 601. The bottom cross-section of the embedding hole 77 is in a constricted shape. The constricted shape of the embedding hole 77 helps to ensure the accurate positioning of the top bead 76. A top bead 76 is slidably connected to the inner wall of the embedding hole 77. The top bead 76 is a stainless steel bead. The top bead 76 is made of stainless steel, having strong wear resistance and corrosion resistance. The cross-sectional size of the top bead 76 is adapted to the cross-sectional size of the embedding hole 77, ensuring smooth sliding and maintaining a sealing effect. The upper surface of the top bead 76 abuts against the inner wall of the positioning frame 74. Through this clamping connection, the positioning and stability of the top bead 76 are achieved. An embedding ring 78 is fixedly connected to the arc surface of the docking pipe 2. The cross-section of the embedding ring 78 is concave. The inner wall of the embedding ring 78 is clamped with the surface of the top bead 76. A recovery groove 79 is opened on the inner wall surface of the positioning frame 74, used to recover the top bead 76 that falls off during operation or as a sliding track for the top bead 76, preventing it from accidentally falling out. The cross-sectional size of the recovery groove 79 is adapted to the cross-sectional size of the top bead 76. A guiding groove 75 is opened on the arc surface of the valve pipe 601 corresponding to the position of the positioning frame 74. The guiding groove 75 helps the positioning frame 74 to maintain the correct position and may assist in stabilizing and guiding the movement during the entire operation. The inner wall of the guiding groove 75 is slidably connected to the inner wall surface of the positioning frame 74.

[0028] When docking and fixing the conveying pipe 1 and the docking pipe 2, first hold the pull plates 72 on both sides of the arc surface of the valve pipe 601, rotate the pull plates 72 to drive the entire rotating ring 71 to perform threaded rotation and extrusion along the surface of the valve pipe 601, thereby driving the positioning frame 74 at one end of the rotating ring 71 to slide along the guiding groove 75 opened on the surface of the valve pipe 601, so that the recovery groove 79 opened on the inner wall of the positioning frame 74 moves to the position of the embedding hole 77 on the surface of the valve pipe 601, making the top bead 76 in the embedding hole 77 in a loose sliding state. Then, insert the docking pipe 2 into the inner wall of the valve pipe 601 until the embedding ring 78 on the surface of the docking pipe 2 is clamped with the arc surface of the top bead 76. Then rotate the rotating ring 71 to make the inner wall of the positioning frame 74 squeeze and protect the surface of the top bead 76. At this time, the position of the entire top bead 76 cannot be moved, and at the same time, an effective docking and fixing limit is achieved between the entire docking pipe 2 and the valve pipe 601.

[0029] As shown Figure 8 in the figure, a limiting mechanism 8 is provided at the position where the arc surface of the valve tube 601 corresponds to the valve stem 602. The limiting mechanism 8 includes a toothed ring 81. The inner wall of the toothed ring 81 is fixedly connected to the arc surface of the valve stem 602. As one of the core components of the limiting mechanism 8, the toothed ring 81 realizes the positioning and movement limitation of the valve stem 602 through its connection with the valve stem 602. A guide plate 83 is fixedly connected to the surface of the valve tube 601. The cross-section of the guide plate 83 is in a "T" shape. In order to increase the stability and strength of the guide plate 83 and ensure smooth sliding between the rack 82 and the guide plate 83, a rack 82 is engaged with the tooth surface of the toothed ring 81. The inner wall of the rack 82 is slidably connected to the surface of the guide plate 83. A driving cylinder 84 is fixedly connected to the surface of the valve tube 601. The driving cylinder 84 realizes the precise control and positioning of the valve stem 602 by pushing the rack 82. The output end of the driving cylinder 84 is fixedly connected to one end of the rack 82. A docking ring 87 is fixedly connected to the upper surface of the toothed ring 81. A positioning rod 88 is fixedly connected to one side surface of the valve tube 601. The cross-section of the positioning rod 88 is rectangular. The valve stem 602 and the positioning rod 88 are slidably penetrated by the same clamping plate 86. The docking ring 87 is in contact with the clamping plate 86, which may be used to ensure the stability of the valve stem 602 at a specific position. A tension spring 89 is sleeved on the surface of the positioning rod 88. Both ends of the tension spring 89 are fixedly connected to the positioning rod 88 and the clamping plate 86 respectively. The tension spring 89 is used to provide a restoring force to ensure that the clamping plate 86 can work in a proper state and play a role in pulling or maintaining the position. The cross-sections of the mutually approaching sides of the clamping plate 86 and the docking ring 87 are in a conical tooth shape. An electric push rod 85 is fixedly connected to the surface of the valve tube 601. The electric push rod 85 can precisely control the position of the clamping plate 86, thereby indirectly controlling the movement of the valve stem 602. The output end of the electric push rod 85 is fixedly connected to one side surface of the clamping plate 86. The clamping plate 86 is a hard alloy plate, and the cross-sectional dimensions of the clamping plate 86 are adapted to the cross-sectional dimensions of the docking ring 87.

[0030] During the process of electrically controlling the rotation of the valve stem 602, first, the electric push rod 85 is used to jack up the clamping plate 86 penetrated by the arc surface of the valve stem 602, so that the clamping plate 86 is separated from the docking ring 87 on the surface of the toothed ring 81. At the same time, the clamping plate 86 will move upward against the extrusion force generated by the tension spring 89 of the positioning rod 88. Then, the driving cylinder 84 is started, so that the driving cylinder 84 drives the rack 82 to slide horizontally along the guide plate 83. At this time, the rack 82 will drive the toothed ring 81 on the arc surface of the valve stem 602 to rotate, and at the same time drive the entire valve stem 602 to perform a rotational operation of the position, so as to effectively control the valve stem 602 on the surface of the entire valve tube 601.

[0031] The above are only the preferred embodiments of the present invention, and do not limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A leak-free docking dry valve conveyor, comprising a conveying pipe (1), a docking pipe (2), an intelligent central processor (3), a docking mechanism (7) and a sealing mechanism (6), characterized in that: A pressure transmitter (4) is installed on the arc surface of the conveying pipe (1), the intelligent central processor (3) is installed on the upper surface of the conveying pipe (1), a flowmeter (5) is installed at one end of the arc surface of the conveying pipe (1) close to the pressure transmitter (4), the sealing mechanism (6) is arranged on the side where the docking pipe (2) and the conveying pipe (1) are close to each other, the sealing mechanism (6) includes a valve pipe (601), the surface of the valve pipe (601) is fixedly communicated with the docking pipe (2) by means of a docking mechanism (7), one end of the valve pipe (601) is fixedly communicated with the inner wall of the bottom end of the conveying pipe (1), a valve rod (602) is rotatably connected to the arc surface of the valve pipe (601), a driving gear (603) is fixedly connected to the bottom end of the valve rod (602), a fixed rod (605) is fixedly connected to the inner wall of the valve pipe (601), a fixed ring (606) is fixedly connected to the bottom end of the fixed rod (605), the fixed ring (606) and the valve pipe (601) are on the same central axis, a driving rod (609) slides through the inner wall of the fixed ring (606), a driven gear (604) is rotatably connected to one side of the fixed ring (606) close to the driving gear (603), the inner wall of the driven gear (604) is threadedly penetrated by the arc surface of the driving rod (609), a closing plate (610) is fixedly connected to one end of the driving rod (609) close to the conveying pipe (1), a protective shell (614) is fixedly connected to the surface of the fixed ring (606), the driven gear (604) and the driving gear (603) are inside the protective shell (614), a guiding block (611) is fixedly connected to the end of the driving rod (609) away from the closing plate (610), two sides of one end of the guiding block (611) close to the docking pipe (2) are fixedly connected with ejector rods (613), a sealing ring (615) is fixedly connected to the inner wall of the docking pipe (2), a moving column (616) slides through the inner wall of the sealing ring (615), through holes (617) are formed on both sides of the arc surface of the moving column (616), the through holes (617) are communicated with one end of the moving column (616), sliding plates (626) are fixedly connected to both ends of the moving column (616), a sliding rod (624) slides through the inner wall of the sliding plate (626), one end of the sliding rod (624) is fixedly connected to the surface of the sealing ring (615), a spring (625) is sleeved on the arc surface of the sliding rod (624), and both ends of the spring (625) are fixedly connected with the sliding plate (626) and the sliding rod (624) respectively. One end of the ejector rod (613) abuts against the two side surfaces of the moving column (616), an adapter ring (621) is fixedly connected to the arc surface of the docking pipe (2), an adapter frame (622) is fixedly connected to the inner wall of the valve pipe (601), the inner wall of the adapter frame (622) is inserted into the surface of the adapter ring (621), and second sealing rings (623) are fixedly connected to both sides of the arc surface of the adapter ring (621).The surface of the second sealing ring (623) abuts against the surface of the connection frame (622).

2. The leak-free docking dry valve conveyor according to claim 1, wherein: A sealing plate (607) is fixedly connected to the inner wall of the valve pipe (601). A sealing hole (608) is formed on the surface of the sealing plate (607). A first sealing ring (612) is fixedly connected to the arc surface of the guiding block (611). The surface of the first sealing ring (612) abuts against the surface of the sealing plate (607). The arc surface of the guiding block (611) is clamped with the inner wall of the sealing hole (608).

3. The leak-free docking dry valve conveyor according to claim 1, wherein: A flow guiding block (618) is fixedly connected to the bottom end of the inner wall of the moving column (616). The cross section of the flow guiding block (618) is in a sharp cone shape.

4. A leak-free docking dry valve conveyor according to claim 1, characterized in that: A limiting ring (619) is fixedly connected to one end surface of the moving column (616). A limiting groove (620) is formed on the surface of the sealing ring (615). The cross-sectional dimension of the limiting groove (620) is adapted to the cross-sectional dimension of the limiting ring (619).

5. A leak-free docking dry valve conveyor according to claim 1, characterized in that: The cross section of the guiding block (611) is in a rhombus shape. The cross-sectional dimension of the guiding block (611) is adapted to the cross-sectional dimension of the sealing hole (608).

6. The leak-free docking dry valve conveyor according to claim 1, characterized in that: The docking mechanism (7) includes a rotating ring (71). The inner wall of the rotating ring (71) is threadedly connected to the arc surface of the valve pipe (601). Pulling plates (72) are fixedly connected to both sides of the arc surface of the rotating ring (71). A moving ring (73) is rotatably connected to one end of the rotating ring (71) close to the docking pipe (2). A positioning frame (74) is fixedly connected to one end of the moving ring (73) close to the docking pipe (2). The positioning frame (74) is located on the arc surface of the valve pipe (601). Four embedding holes (77) are evenly formed on the arc surface of the valve pipe (601). The bottom cross section of the embedding hole (77) is in a necked shape. A top bead (76) is slidably connected to the inner wall of the embedding hole (77). The top bead (76) is a stainless steel bead. The cross-sectional dimension of the top bead (76) is adapted to the cross-sectional dimension of the embedding hole (77). The upper surface of the top bead (76) abuts against the inner wall of the positioning frame (74). An embedding ring (78) is fixedly connected to the arc surface of the docking pipe (2). The cross section of the embedding ring (78) is in a concave shape. The inner wall of the embedding ring (78) is clamped with the surface of the top bead (76).

7. The leak-free docking dry valve conveyor according to claim 6, characterized in that: A recovery groove (79) is formed on the inner wall surface of the positioning frame (74). The cross-sectional dimension of the recovery groove (79) is adapted to the cross-sectional dimension of the top bead (76).

8. The leak-free docking dry valve conveyor according to claim 6, wherein: A guiding groove (75) is formed on the arc surface of the valve pipe (601) corresponding to the position of the positioning frame (74). The inner wall of the guiding groove (75) is slidably connected to the inner wall surface of the positioning frame (74).

9. The leak-free docking dry valve conveyor according to claim 1, wherein: A limiting mechanism (8) is provided at the position where the arc surface of the valve pipe (601) corresponds to the valve stem (602). The limiting mechanism (8) includes a toothed ring (81). The inner wall of the toothed ring (81) is fixedly connected to the arc surface of the valve stem (602). A guide plate (83) is fixedly connected to the surface of the valve pipe (601). The cross-section of the guide plate (83) is in the shape of a "T". A rack (82) is meshed with the tooth surface of the toothed ring (81). The inner wall of the rack (82) is slidably connected to the surface of the guide plate (83). A driving cylinder (84) is fixedly connected to the surface of the valve pipe (601). The output end of the driving cylinder (84) is fixedly connected to one end of the rack (82). A docking ring (87) is fixedly connected to the upper surface of the toothed ring (81). A positioning rod (88) is fixedly connected to one side surface of the valve pipe (601). The cross-section of the positioning rod (88) is rectangular. A same clamping plate (86) slidably penetrates through the surfaces of the valve stem (602) and the positioning rod (88). A tension spring (89) is sleeved on the surface of the positioning rod (88). The two ends of the tension spring (89) are respectively fixedly connected to the positioning rod (88) and the clamping plate (86). The cross-sections of the sides of the clamping plate (86) and the docking ring (87) close to each other are in the shape of bevel gears. An electric push rod (85) is fixedly connected to the surface of the valve pipe (601). The output end of the electric push rod (85) is fixedly connected to one side surface of the clamping plate (86).

10. The leak-free docking dry valve conveyor according to claim 9, characterized in that: The clamping plate (86) is a hard alloy plate, and the cross-sectional dimensions of the clamping plate (86) are adapted to the cross-sectional dimensions of the docking ring (87).

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