Ship-shore interface valve

Abstract

The invention relates to the technical field of valves, in particular to a ship-shore interface valve. Comprising a valve body and a valve ball which is rotationally and hermetically connected in the valve body; the outer wall of the valve body is fixedly connected with a control box through a transition shell. A valve rod penetrates through the transition shell and is movably connected with the transition shell. One end of the valve rod extends into the valve body and is fixedly connected with the valve ball, and the other end of the valve rod extends into the control box; the outer wall of the other end of the valve rod is connected with an outer gear ring; the outer gear ring is in meshing transmission with a rack; a sliding groove is formed in the inner wall of the control box in the rack transmission direction. According to the delay valve, the delay plate slides in the delay groove, so that the rack drives the meshed outer gear ring to transmit, damping formed when the hydraulic cylinder penetrates through the damping groove needs to be overcome, the speed of opening or closing a channel in the valve body by the valve ball is low, the purpose of opening and closing the valve in a delayed mode is achieved, and the use requirement of the valve is met.

Description

Technical Field

[0001] The invention relates to the technical field of valves, in particular to a ship-shore interface valve. Background Art

[0002] The ship-shore interface, i.e. the ship-shore safety device for oil and gas recovery at the wharf, is a device installed between the oil and gas collection and oil and gas transportation devices to protect the safety of ships, wharfs and oil and gas recovery devices. When transporting oil and gas and other media between ships and wharfs, valves are used for control. During the use of the ship-shore interface valve, in the event of an emergency power outage, the valve will close automatically to avoid irreparable losses. For this reason, we have previously proposed a technology with announcement number CN220337587U and the subject name is a special valve for the ship-shore interface to solve the above problems. However, we have found in the actual use of the ship-shore interface valve and continued research that if the valve is closed too quickly, it may cause a sharp change in system pressure, which may damage the pipeline or container and even increase the risk of leakage or explosion. Summary of the invention

[0003] In order to make up for the shortcomings of the prior art, the present invention proposes a ship-shore interface valve. The present invention enables a delay plate to slide in a delay groove, so that the rack drives the meshing external gear ring transmission to overcome the damping formed by the hydraulic cylinder passing through the damping groove, so that the channel in the valve body is opened or closed by the valve ball at a slower speed, thereby achieving the purpose of delayed opening and closing of the valve and meeting the use requirements of the valve.

[0004] The technical solution adopted by the present invention to solve its technical problem is: the ship-shore interface valve described in the present invention comprises a valve body and a valve ball rotatably sealed and connected inside the valve body; the outer wall of the valve body is fixedly connected to a control box through a transition shell; a valve stem passes through the transition shell and is movably connected; one end of the valve stem extends into the valve body and is fixedly connected to the valve ball, and the other end of the valve stem extends into the control box; the outer wall of the other end of the valve stem is connected to an external gear ring; the external gear ring meshes and drives a rack; a slide groove is provided on the inner wall of the control box along the transmission direction of the rack; The slide groove is slidably connected with a slider; the slider is made of magnetic material; the control box is fixedly connected to an electromagnet at a corner; the electromagnet can adsorb the slider when energized; the side of the slider facing away from the electromagnet is connected to the slide groove wall through a tension spring; the slider is fixedly connected to the side of the rack facing away from the outer gear ring; the inner wall of the control box away from the electromagnet is provided with a delay groove; the delay groove is slidably sealed with a delay plate; the delay plate is penetrated by a damping groove; the delay plate is fixedly connected to the end of the rack; and damping fluid is provided in the delay groove.

[0005] Preferably, the teeth on the rack are arranged at one end close to the delay plate; the rack extends toward the outside of the control box at one end away from the delay plate; the rack is slidingly and sealingly connected to the control box; a second cavity is formed between the side of the delay plate facing the outer gear ring, the side of the rack facing the outer gear ring, and the inner wall of the control box; the space in the delay groove where the delay plate is away from the outer gear ring is the first cavity; the second cavity and the first cavity are both filled with damping fluid.

[0006] Preferably, a driven groove is provided on one of the groove walls of the damping groove; a driven block is connected to the sliding seal in the driven groove; the damping groove can be blocked when the driven block moves away from the driven groove; an active groove is provided inside the end of the rack away from the delay plate; the active block is connected to the sliding seal in the active groove; the active groove space of the active block facing the delay plate is connected to the bottom of the driven groove through a liquid hole; the active block is rotatably connected to the first bolt on the side away from the delay plate; the first bolt passes through the end of the rack away from the delay plate; the first bolt is threadedly connected to the rack.

[0007] Preferably, the groove walls corresponding to the damping groove and the driven groove are provided with reinforcement grooves; the cross section of the reinforcement groove is the same as that of the driven groove; and the active block can be sealed and inserted into the reinforcement groove.

[0008] Preferably, an annular groove is provided on one side of the transition shell that contacts the control box; an annular sleeve is rotatably connected to the annular groove in a sealing manner; the annular sleeve is fixedly connected to the control box; a second threaded hole communicating with the annular groove is penetrated through the outer wall of the transition shell; a second bolt is threadedly connected to the second threaded hole; holes are evenly arranged on the inner and outer walls of the annular sleeve along the circumferential direction; the second bolt can be inserted into the hole; a rotating hole is provided on the control box along the axial direction of the valve stem; a rotating sleeve is rotatably connected to the rotating sleeve in the rotating hole; the outer gear ring is sleeved and fixedly connected to the outer wall of the rotating sleeve; the inner wall of the rotating sleeve is evenly and fixedly connected to a key strip; key grooves are evenly arranged on the outer wall of the valve stem away from the valve ball; the key grooves and the key strips correspond to each other and can be engaged.

[0009] Preferably, there are multiple second threaded holes; the multiple second threaded holes are evenly distributed around the circumference of the transition shell; the second threaded holes correspond one to one with the insertion holes after the annular sleeve is inserted into the annular groove; the inner wall of the delay groove is connected to the outer wall of the control box and is provided with an oil change hole; the inner thread of the oil change hole is sealed and connected to a screw plug.

[0010] Preferably, a side of the second cavity away from the first cavity is fixedly connected to a partition; the partition is in contact with the inner wall of the second cavity; the partition and the inner wall of the second cavity are combined to form a avoidance groove; the inner wall of the avoidance groove is slidingly and sealingly connected to the avoidance plate; the side of the avoidance plate away from the outer gear ring is connected to the inner wall of the avoidance groove through a first spring; the avoidance groove space of the avoidance plate away from the outer gear ring is connected to the external gas.

[0011] Preferably, the slide groove passes through the control box outward; the sliding block is provided with an upper wedge-shaped groove on the side facing away from the electromagnet; the upper wedge-shaped block is slidably connected in the upper wedge-shaped groove; the slide groove is provided with a lower wedge-shaped groove on the side facing away from the electromagnet; the lower wedge-shaped block is slidably connected in the lower wedge-shaped groove; the tension spring is connected between the upper wedge-shaped block and the lower wedge-shaped block.

[0012] Preferably, the groove wall of the reinforcement groove is provided with a push groove that passes through the delay plate; a push bar is slidably connected in the push groove; the push bar is connected to the reinforcement groove through a second spring; a corrugated groove is provided on the inner wall of the delay groove; the length direction of the corrugated groove is the same as the moving direction of the delay plate; the push bar extends out of the push groove away from the second spring and extends into the corrugated groove; the depth of the bottom of the corrugated groove changes in a corrugated manner; the push bar is movably sealed and connected to the corrugated groove; the push bar is located on the outer wall of the reinforcement groove and is fixedly connected to a loose block facing the driven groove; the loose block is fixedly connected to a loose bar near one end of the driven groove; the loose bar is located in the damping groove.

[0013] Preferably, the loose strip is elastic and bends toward the driven block; a storage groove is provided on the side of the driven block facing the shift bar; the shift bar is located at the positions at both ends of the corrugated groove, and the positions of the loose strips in the damping groove are the same; the number of the storage grooves is the same as the number of the loose strips; after the driven block approaches the reinforcement groove, the loose strip can be inserted into the storage groove.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention enables the delay plate to slide in the delay groove, so that the rack drives the meshing external gear ring to overcome the damping formed by the hydraulic cylinder passing through the damping groove, so that the channel in the valve body is opened or closed by the valve ball at a slower speed, thereby achieving the purpose of delaying the opening and closing of the valve and meeting the use requirements of the valve.

[0015] 2. The present invention indirectly adjusts the rotation speed of the valve ball in the valve body by controlling the opening size formed after the damping groove is blocked by the driven block, so that the opening and closing time of the valve is controlled to meet different usage requirements.

[0016] 3. In the present invention, the second bolt is screwed into the second threaded hole. After the second bolt passes through the second threaded hole and is inserted into the corresponding socket, the axial and circumferential locking of the annular sleeve and the annular groove is achieved. In this way, the control box is connected and locked with the valve body after adjusting the direction of the operating position, meeting the requirements of different usage environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0018] Figure 1 is a stereogram of the present invention; Figure 2 yes Figure 1A three-dimensional image from another angle; Figure 3 is a cross-sectional view of a control box of the present invention; Figure 4 yes Figure 3 The enlarged view of point A in the middle; Figure 5 is a position diagram of the corrugated grooves in the present invention; Figure 6 It is a three-dimensional diagram of the delay plate, the outer gear ring and the rack in the present invention; Figure 7 It is a three-dimensional diagram of the delay plate and the rack in the present invention; Figure 8 It is a three-dimensional diagram of the shift bar and the driven block in the present invention.

[0019] In the figure: valve body 1, valve ball 11, transition shell 2, annular groove 21, annular sleeve 22, second threaded hole 23, second bolt 24, jack 25, control box 3, slide groove 31, lower wedge groove 311, lower wedge block 312, slider 32, upper wedge groove 321, upper wedge block 322, electromagnet 33, tension spring 34, delay groove 35, rotating hole 36, oil change hole 37, screw plug 38, corrugated groove 39, valve stem 4, outer gear ring 4 1. key slot 42, rack 5, active slot 51, active block 52, liquid hole 53, first bolt 54, delay plate 6, damping slot 61, second cavity 62, first cavity 63, driven slot 64, driven block 65, storage slot 651, reinforcement slot 66, shifting slot 67, rotating sleeve 7, key strip 71, partition plate 8, avoidance slot 81, avoidance plate 82, first spring 83, shifting strip 9, second spring 91, loosening block 92, loosening strip 93. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] like Figures 1 to 8 As shown, the present invention includes the following embodiments: Embodiment 1: A ship-shore interface valve comprises a valve body 1 and a valve ball 11 rotatably and sealably connected inside the valve body 1; the outer wall of the valve body 1 is fixedly connected to a control box 3 through a transition shell 2; a valve stem 4 passes through the transition shell 2 and is movably connected; one end of the valve stem 4 extends into the valve body 1 and is fixedly connected to the valve ball 11, and the other end of the valve stem 4 extends into the control box 3; the outer wall of the other end of the valve stem 4 is connected to an outer gear ring 41; the outer gear ring 41 meshes and drives a rack 5; a slide groove 31 is provided on the inner wall of the control box 3 along the transmission direction of the rack 5; a slider 32 is slidably connected in the slide groove 31; the The slider 32 is made of magnetic material; the electromagnet 33 is fixedly connected to the corner of the control box 3; the electromagnet 33 can adsorb the slider 32 when energized; the side of the slider 32 facing away from the electromagnet 33 is connected to the groove wall of the slide groove 31 through a tension spring 34; the slider 32 is fixedly connected to the side of the rack 5 facing away from the outer gear ring 41; the inner wall of the control box 3 away from the electromagnet 33 is provided with a delay groove 35; the delay plate 6 is connected to the sliding seal in the delay groove 35; the delay plate 6 is penetrated by a damping groove 61; the delay plate 6 is fixedly connected to the end of the rack 5; and damping fluid is provided in the delay groove 35.

[0022] In this embodiment, the teeth on the rack 5 are arranged at one end close to the delay plate 6; the end of the rack 5 away from the delay plate 6 extends toward the outside of the control box 3; the rack 5 is slidingly and sealingly connected to the control box 3; a second cavity 62 is formed between the side of the delay plate 6 facing the outer gear ring 41, the side of the rack 5 facing the outer gear ring 41 and the inner wall of the control box 3; the space in the delay groove 35 where the delay plate 6 is away from the outer gear ring 41 is the first cavity 63; the second cavity 62 and the first cavity 63 are both filled with damping fluid.

[0023] The valve is connected to the oil and gas medium transmission between the ship and the dock, and the electromagnet 33 is energized. The circuit of the electromagnet 33 is connected with the main circuit. Under the action of the main circuit being energized, the electromagnet 33 will be energized. After the electromagnet 33 is energized, a magnetic force will be generated. The electromagnet 33 and the slider 32 will generate a magnetic attraction. Under the magnetic attraction, the slider 32 will overcome the tension of the tension spring 34 and slide in the slide groove 31. When the slider 32 approaches the electromagnet 33, it will drive the rack 5 to slide in the control box 3, and the end of the rack 5 away from the delay plate 6 will gradually extend out of the control box 3. , the rack 5 will drive the outer gear ring 41 to produce meshing transmission, the outer gear ring 41 will drive the valve stem 4 to rotate during the rotation, and the valve stem 4 will drive the valve ball 11 to rotate in the valve body 1 during the rotation, until the slider 32 contacts the electromagnet 33, the valve ball 11 rotates 90 degrees, so that the valve body 1 channel is fully opened, and the fluid will flow through the valve body 1 for transportation. The staff can observe the length of the end of the rack 5 away from the delay plate 6 extending out of the control box 3 to determine the rotation angle of the valve ball 11, thereby determining the opening state of the channel in the valve body 1. When the rack 5 is attracted by the magnetic force and moves close to the electromagnet 33, it will drive the delay plate 6 to slide in the delay groove 35. The first cavity 63 and the second cavity 62 are filled with damping liquid, such as hydraulic oil. When the delay plate 6 slides along the delay groove 35 close to the outer gear ring 41, the space of the first cavity 63 becomes larger to form a negative pressure, and the space of the second cavity 62 becomes smaller to form an extrusion force. Under the dual effects of negative pressure and extrusion, the hydraulic oil in the second cavity 62 will enter the first cavity 63 along the damping groove 61. Since the opening size of the damping groove 61 is limited, the second cavity 62 is The speed at which the hydraulic oil in the cavity 62 is transferred to the first cavity 63 is limited, so the speed at which the delay plate 6 slides in the delay groove 35 is limited, so that the speed at which the rack 5 drives the outer gear ring 41 to engage and transmit is limited, so that the outer gear ring 41 drives the valve stem 4 and the valve ball 11 to rotate slowly, so that the channel in the valve body 1 is slowly opened, reducing the occurrence of the water hammer effect, and reducing the risk of damage to the valve body 1 and the entire channel due to sudden changes in the water flow rate; after the channel in the valve body 1 is fully opened, the fluid begins to be transported;In the event of a sudden power outage, the electromagnet 33 will be powered off, and the electromagnet 33 will lose its magnetic attraction to the slider 32, so that the tension spring 34 will pull the slider 32 away from the electromagnet 33. During the sliding process of the slider 32 along the slide groove 31, it will drive the rack 5 to slide in the control box 3, and the rack 5 will drive the delay plate 6 to slide in the delay groove 35 away from the outer gear ring 41. The rack 5 will drive the meshing outer gear ring 41 to transmit, and the outer gear ring 41 will drive the valve stem 4 and the valve ball 11 to rotate, so that the channel in the valve body 1 is closed. In the process of the delay plate 6 moving away from the outer gear ring 41, the hydraulic oil in the first chamber 63 is squeezed by the delay plate 6 and discharged into the second chamber 62 along the damping groove 61. The damping groove 61 The speed of the flowing hydraulic oil is limited, so that the speed of the hydraulic oil in the first chamber 63 flowing into the second chamber 62 along the damping groove 61 is limited, so that the speed at which the rack 5 drives the outer gear ring 41 to rotate is limited, and the valve ball 11 rotates slowly, thereby achieving the purpose of delay, so that the channel in the valve body 1 is slowly closed. The staff can judge the length of the rack 5 extending out of the control box 3 away from the delay plate 6 to judge the movement of the rack 5 in the control box 3, thereby judging the closing status of the channel in the valve body 1; the hydraulic oil in the second chamber 62 can also lubricate the outer gear ring 41 and the rack 5; the damping fluid can also be other liquids that can maintain fluidity at high and low temperatures; The present invention enables the delay plate 6 to slide in the delay groove 35, so that the rack 5 drives the meshing external gear ring 41 to overcome the damping formed by the hydraulic cylinder passing through the damping groove 61, so that the channel in the valve body 1 is opened or closed by the valve ball 11 at a slower speed, thereby achieving the purpose of delaying the opening and closing of the valve and meeting the use requirements of the valve.

[0024] Embodiment 2: A driven groove 64 is provided on one of the groove walls of the damping groove 61; a driven block 65 is connected to the driven groove 64 by a sliding seal; the damping groove 61 can be blocked by the driven block 65 in the process of being away from the driven groove 64; an active groove 51 is provided inside the end of the rack 5 away from the delay plate 6; an active block 52 is connected to the active groove 51 by a sliding seal; the space of the active groove 51 on the side of the active block 52 facing the delay plate 6 is connected to the bottom of the driven groove 64 through a liquid hole 53; the active block 52 is rotatably connected to the first bolt 54 on the side away from the delay plate 6; the first bolt 54 passes through the end of the rack 5 away from the delay plate 6; the first bolt 54 is threadedly connected to the rack 5.

[0025] In this embodiment, the groove walls corresponding to the damping groove 61 and the driven groove 64 are provided with reinforcement grooves 66 ; the cross section of the reinforcement groove 66 is the same as that of the driven groove 64 ; and the active block 52 can be sealed and inserted into the reinforcement groove 66 .

[0026] Before the valve is put into use, the first bolt 54 is screwed. The first bolt 54 is threadedly connected to the end of the rack 5 away from the delay plate 6. Therefore, after the first bolt 54 is screwed, it can drive the active block 52 to slide in the active groove 51. The active block 52 is slidably and sealedly connected with the active groove 51. The active groove 51 is divided into a rod cavity and a rodless cavity by the active block 52. The first bolt 54 is in the rod cavity, the rod cavity is connected to the external gas, and the rodless cavity is filled with liquid medium. When the active block 52 is close to the delay plate 6, the active block 52 is screwed. During the process, the active block 52 squeezes the liquid medium in the rodless cavity, so that the liquid medium enters the driven groove 64 along the liquid hole 53, and the driven block 65 in the driven groove 64 moves away from the bottom of the driven groove 64 under the push of the liquid medium. The driven block 65 blocks the damping groove 61, so that the opening of the damping groove 61 is reduced; in the process of the active block 52 moving away from the delay plate 6, the space in the rodless cavity becomes larger to form a negative pressure, and the liquid medium in the driven groove 64 moves along the liquid hole 53 under the action of the negative pressure. Entering into the rodless chamber, so that the range of the damping groove 61 blocked by the driven block 65 is reduced; the transfer speed of the hydraulic oil in the first chamber 63 and the second chamber 62 is affected by the damping groove 61. When the opening formed after the damping groove 61 is blocked by the driven block 65 is smaller, the transfer speed of the hydraulic oil in the first chamber 63 and the second chamber 62 is slower, and the sliding speed of the delay plate 6 in the delay groove 35 is slower, resulting in a slower opening and closing speed of the valve ball 11 in the valve body 1. Similarly, when the opening formed after the damping groove 61 is blocked by the driven block 65 is larger, the transfer speed of the hydraulic oil in the first chamber 63 and the second chamber 62 is faster, and the sliding speed of the delay plate 6 in the delay groove 35 is faster, resulting in a faster opening and closing speed of the valve ball 11 in the valve body 1. In this way, by controlling the size of the opening formed after the damping groove 61 is blocked by the driven block 65, the rotation speed of the valve ball 11 in the valve body 1 is indirectly adjusted, so that the opening and closing time of the valve is controlled, thereby meeting different usage requirements; For some situations where the valve state needs to be kept unchanged regardless of whether the power is on or off, it is necessary to control the driven block 65 to be inserted into the reinforcing groove 66 along the driven groove 64, so that the damping groove 61 is completely blocked. After the damping groove 61 is completely blocked, the hydraulic oil in the first chamber 63 and the second chamber 62 cannot be connected, so that the delay plate 6 cannot slide in the delay groove 35. In this way, regardless of whether the electromagnet 33 is powered on or off, the rack 5 and the slider 32 cannot move, thereby locking the valve state; because the driven block 65 is inserted into the reinforcing groove 66, both ends of the driven block 65 are restricted, thereby ensuring the strength of the driven block 65, avoiding the situation where the driven block 65 is compressed and bent, and improving the stability of the valve.

[0027] Embodiment 3: A ring groove 21 is provided on the side of the transition shell 2 that contacts the control box 3; the ring groove 21 is rotatably sealed and connected to an annular sleeve 22; the annular sleeve 22 is fixedly connected to the control box 3; a second threaded hole 23 communicating with the annular groove 21 is penetrated through the outer wall of the transition shell 2; the second threaded hole 23 is threadedly connected to a second bolt 24; the inner and outer walls of the annular sleeve 22 are evenly provided with insertion holes 25 along the circumferential direction; the second bolt 24 can be inserted into the insertion hole 25; the control box 3 is axially provided with a rotating hole 36; the rotating hole 36 is rotatably sealed and connected to a rotating sleeve 7; the outer gear ring 41 is sleeved and fixedly connected to the outer wall of the rotating sleeve 7; the inner wall of the rotating sleeve 7 is evenly and fixedly connected to a key strip 71; the outer wall of the valve stem 4 at one end away from the valve ball 11 is evenly provided with a key groove 42; the key groove 42 and the key strip 71 correspond to each other and can be engaged.

[0028] In this embodiment, there are multiple second threaded holes 23; the multiple second threaded holes 23 are evenly distributed around the transition shell 2; the second threaded holes 23 correspond to the insertion holes 25 one by one after the annular sleeve 22 is inserted into the annular groove 21; the inner wall of the delay groove 35 is connected to the outer wall of the control box 3 and is provided with an oil change hole 37; the inner thread of the oil change hole 37 is sealed and connected to the screw plug 38.

[0029] The control box 3 and the valve body 1 are assembled through the transition shell 2. One side of the control box 3 where the first bolt 54 needs to be screwed for operation is the operating position. After the valve is put into use, the operating position needs to reserve an operating space for operation. Before the valve is put into use, first determine the position of the second bolt 24 and the operating position, loosen the second bolt 24, and the second bolt 24 will rotate in the second threaded hole 23 when screwed in the opposite direction, so that the second bolt 24 is moved out from the insertion hole 25 and the corresponding second threaded hole 23, so that the annular sleeve 22 and the annular groove 21 are unlocked, and then the control box 3 is held to drive the annular sleeve 22 to move out of the annular groove 21. In the process of the control box 3 moving away from the valve body 1, the end of the valve stem 4 away from the valve ball 11 will move out from the inner side of the rotating sleeve 7, and the key strip 71 on the inner wall of the rotating sleeve 7 is disconnected from the key groove 42 on the valve stem 4, so that the control box 3 is separated from the valve body 1, and then the control box 3 is turned around so that the operating position on one side of the control box 3 moves to the corresponding orientation, and the end of the control valve stem 4 away from the valve ball 11 is reinserted into the inner side of the rotating sleeve 7, and the plug-in is completed again after the key groove 42 is aligned with the key strip 71. At the same time, the control annular sleeve 22 is inserted into the annular groove 21, and the insertion hole 25 on the outer wall of the annular sleeve 22 corresponds to the second threaded hole 23 one by one. Then, after selecting the orientation of the transition shell 2 that is convenient for operation, the second bolt 24 is screwed into the second threaded hole 23. After the second bolt 24 passes through the second threaded hole 23 and is inserted into the corresponding insertion hole 25, the axial and circumferential locking of the annular sleeve 22 and the annular groove 21 is realized. In this way, the control box 3 is connected and locked with the valve body 1 after adjusting the direction of the operating position, which meets the requirements of different use environments; the hydraulic oil in the control box 3 needs to be regularly opened with the screw plug 38 for replacement.

[0030] Embodiment 4: The side of the second cavity 62 away from the first cavity 63 is fixedly connected to the partition plate 8; the partition plate 8 is in contact with the inner wall of the second cavity 62; the partition plate 8 and the inner wall of the second cavity 62 enclose a avoidance groove 81; the inner wall of the avoidance groove 81 is slidingly sealed and connected to the avoidance plate 82; the side of the avoidance plate 82 away from the outer gear ring 41 is connected to the inner wall of the avoidance groove 81 through a first spring 83; the space of the avoidance groove 81 of the avoidance plate 82 away from the outer gear ring 41 is connected to the external gas.

[0031] In the process of the rack 5 driving the delay plate 6 away from the outer gear ring 41, the space occupied by the rack 5 in the second chamber 62 will become larger and larger, so the liquid pressure in the first chamber 63 and the second chamber 62 will increase, and the liquid in the second chamber 62 will squeeze the avoidance plate 82 to slide along the avoidance groove 81 to overcome the first spring 83. In the process of the rack 5 driving the delay plate 6 to approach the outer gear ring 41, the space occupied by the rack 5 in the second chamber 62 will become smaller and smaller, so the first spring 83 will push the avoidance plate 82 to slide in the avoidance groove 81 towards the outer gear ring 41 to ensure the liquid filling effect in the second chamber 62, thereby ensuring that the rack 5 drives the delay plate 6 to move smoothly in the delay groove 35.

[0032] Embodiment 5: The slide groove 31 passes through the control box 3 outwardly; the sliding block 32 is provided with an upper wedge-shaped groove 321 on the side facing away from the electromagnet 33; the upper wedge-shaped block 322 is slidably connected in the upper wedge-shaped groove 321; the slide groove 31 is provided with a lower wedge-shaped groove 311 on the side facing away from the electromagnet 33; the lower wedge-shaped block 312 is slidably connected in the lower wedge-shaped groove 311; the tension spring 34 is connected between the upper wedge-shaped block 322 and the lower wedge-shaped block 312.

[0033] The cross-sections of the upper wedge-shaped groove 321 and the lower wedge-shaped groove 311 are both isosceles trapezoids. After the upper wedge-shaped block 322 moves along the upper wedge-shaped groove 321 away from the rack 5, and the lower wedge-shaped block 312 moves along the lower wedge-shaped groove 311 away from the rack 5, the tension spring 34 is disassembled and replaced to ensure the tension effect of the tension spring 34.

[0034] Embodiment 6: The groove wall of the reinforcement groove 66 is provided with a push groove 67 penetrating the delay plate 6; the push groove 67 is slidably connected with a push bar 9; the push bar 9 is connected to the reinforcement groove 66 through a second spring 91; the inner wall of the delay groove 35 is provided with a corrugated groove 39; the length direction of the corrugated groove 39 is the same as the moving direction of the delay plate 6; the push bar 9 extends out of the push groove 67 at one end away from the second spring 91 and extends into the corrugated groove 39; the depth of the bottom of the corrugated groove 39 changes in a corrugated manner; the push bar 9 is movably sealed and connected to the corrugated groove 39; the push bar 9 is located on the outer wall of the reinforcement groove 66 and is fixedly connected to a loose block 92 facing the driven groove 64; the loose block 92 is fixedly connected to a loose strip 93 at one end close to the driven groove 64; the loose strip 93 is located in the damping groove 61.

[0035] In this embodiment, the loose strip 93 is elastic and bends toward the driven block 65; the driven block 65 is provided with a storage groove 651 on the side facing the shift bar 9; the shift bar 9 is located at the two ends of the corrugated groove 39, and the position of the loose strip 93 in the damping groove 61 is the same; the number of the storage grooves 651 is the same as the number of the loose strips 93; after the driven block 65 approaches the reinforcement groove 66, the loose strip 93 can be inserted into the storage groove 651.

[0036] When the delay plate 6 slides along the delay groove 35 with the movement of the rack 5, the delay plate 6 will drive the lever 9 to move along the corrugated groove 39. The lever 9 is slidably and sealedly connected with the lever groove 67. The lever 9 is pressed against the corrugated groove 39 under the elastic force of the second spring 91. When the lever 9 moves along the length direction of the corrugated groove 39, the lever 9 will move along the bottom of the corrugated groove 39. Since the bottom of the corrugated groove 39 changes in a corrugated shape, and with the cooperation of the second spring 91, the lever 9 slides back and forth along the lever groove 67. The direction in which the lever 9 moves back and forth is consistent with the axial direction of the valve stem 4. During the back and forth movement of the lever 9, the loose block 92 and the loose strip 93 will be driven to slide in the damping groove 61. The end of the loose strip 93 can extend out of the damping groove 61. The loose strip 93 can move back and forth in the damping groove 61. The blockage is cleared to prevent some impurities, such as particles of component wear, from blocking the damping groove 61. By loosening the damping groove 61, the damping groove 61 is made more unobstructed, and the opening and closing of the valve is made more stable; when the push bar 9 moves to the two ends of the corrugated groove 39, the position of the loose strip 93 in the damping groove 61 remains unchanged. Therefore, after the driven block 65 is inserted into the reinforcement groove 66, the loose strip 93 will be stuck in the storage groove 651 on the driven block 65, and the storage groove 651 plays a role of avoidance, so that the driven block 65 can smoothly enter the reinforcement groove 66, so as to achieve complete shielding of the damping groove 61 and will not be affected by the loose strip 93; in addition, when the damping groove 61 is partially closed or opened, the driven block 65 can squeeze the bent loose strip 93 away without causing interference.

[0037] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A ship-shore interface valve, comprising a valve body and a valve ball rotatably and sealably connected inside the valve body; the outer wall of the valve body is fixedly connected to a control box through a transition shell; a valve stem passes through the transition shell and is movably connected; one end of the valve stem extends into the valve body and is fixedly connected to the valve ball, and the other end of the valve stem extends into the control box; characterized in that: The outer wall of the other end of the valve stem is connected to the outer gear ring; the outer gear ring meshes with the rack for transmission; the inner wall of the control box is provided with a slide groove along the transmission direction of the rack; the slide groove is slidably connected to a slider; the slider is made of magnetic material; the control box is fixedly connected to an electromagnet at a corner position; the electromagnet can adsorb the slider when energized; the side of the slider facing away from the electromagnet is connected to the slide groove wall by a tension spring; the slider is fixedly connected to the side of the rack facing away from the outer gear ring; the inner wall of the control box away from the electromagnet is provided with a delay groove; the delay groove is slidingly sealed and connected to a delay plate; the delay plate is penetrated by a damping groove; the delay plate is fixedly connected to the end of the rack; the delay groove is provided with damping fluid.

2. A ship-shore interface valve according to claim 1, characterized in that: The teeth on the rack are arranged at one end close to the delay plate; the rack extends toward the outside of the control box at one end away from the delay plate; the rack is slidingly and sealingly connected to the control box; a second cavity is formed between the side of the delay plate facing the outer gear ring, the side of the rack facing the outer gear ring and the inner wall of the control box; the space in the delay groove where the delay plate is away from the outer gear ring is the first cavity; the second cavity and the first cavity are both filled with damping fluid.

3. A ship-shore interface valve according to claim 2, characterized in that: A driven groove is provided on one of the groove walls of the damping groove; a driven block is connected to the sliding seal in the driven groove; the damping groove can be blocked when the driven block moves away from the driven groove; an active groove is provided inside the end of the rack away from the delay plate; the active block is connected to the sliding seal in the active groove; the active groove space of the active block facing the delay plate is connected to the bottom of the driven groove through a liquid hole; the active block is rotatably connected to the first bolt on the side away from the delay plate; the first bolt passes through the end of the rack away from the delay plate; the first bolt is threadedly connected to the rack.

4. A ship-shore interface valve according to claim 3, characterized in that: The groove walls corresponding to the damping groove and the driven groove are provided with reinforcement grooves; the cross section of the reinforcement groove is the same as that of the driven groove; and the active block can be sealed and inserted into the reinforcement groove.

5. A ship-shore interface valve according to claim 3, characterized in that: The side of the transition shell in contact with the control box is provided with an annular groove; the annular groove is rotatably sealed and connected to an annular sleeve; the annular sleeve is fixedly connected to the control box; the outer wall of the transition shell is penetrated by a second threaded hole connected to the annular groove; the second threaded hole is threadedly connected to a second bolt; the inner and outer walls of the annular sleeve are evenly provided with insertion holes along the circumferential direction; the second bolt can be inserted into the insertion hole; the control box is provided with a rotating hole along the axial direction of the valve stem; the rotating hole is rotatably sealed and connected to a rotating sleeve; the outer gear ring is sleeved and fixedly connected to the outer wall of the rotating sleeve; the inner wall of the rotating sleeve is evenly and fixedly connected to a key strip; the outer wall of the valve stem away from the valve ball is evenly provided with a key groove; the key groove and the key strip correspond to each other and can be engaged.

6. A ship-shore interface valve according to claim 5, characterized in that: There are multiple second threaded holes; the multiple second threaded holes are evenly distributed around the circumference of the transition shell; the second threaded holes and the insertion holes correspond one to one after the annular sleeve is inserted into the annular groove; the inner wall of the delay groove is connected to the outer wall of the control box and is provided with an oil change hole; the inner thread of the oil change hole is sealed and connected to the screw plug.

7. A ship-shore interface valve according to claim 2, characterized in that: The side of the second cavity away from the first cavity is fixedly connected to a partition; the partition is in contact with the inner wall of the second cavity; the partition and the inner wall of the second cavity are combined to form an avoidance groove; the inner wall of the avoidance groove is slidingly and sealingly connected to the avoidance plate; the side of the avoidance plate away from the outer gear ring is connected to the inner wall of the avoidance groove through a first spring; the avoidance groove space of the avoidance plate away from the outer gear ring is connected to the external gas.

8. The ship-shore interface valve according to claim 1, characterized in that: The slide groove passes through the control box outward; the sliding block is provided with an upper wedge-shaped groove on the side away from the electromagnet; the upper wedge-shaped block is slidably connected in the upper wedge-shaped groove; the slide groove is provided with a lower wedge-shaped groove on the side away from the electromagnet; the lower wedge-shaped block is slidably connected in the lower wedge-shaped groove; the tension spring is connected between the upper wedge-shaped block and the lower wedge-shaped block.

9. A ship-shore interface valve according to claim 4, characterized in that: The groove wall of the reinforcement groove is provided with a pull groove that passes through the delay plate; a pull bar is slidably connected in the pull groove; the pull bar is connected to the reinforcement groove through a second spring; a corrugated groove is provided on the inner wall of the delay groove; the length direction of the corrugated groove is the same as the moving direction of the delay plate; the pull bar extends out of the pull groove at one end away from the second spring and extends into the corrugated groove; the depth of the bottom of the corrugated groove changes in a corrugated manner; the pull bar is movably sealed and connected to the corrugated groove; the pull bar is located on the outer wall of the reinforcement groove and is fixedly connected to a loose block facing the driven groove; the loose block is fixedly connected to a loose bar near one end of the driven groove; the loose bar is located in the damping groove.

10. A ship-shore interface valve according to claim 9, characterized in that: The loose strip is elastic and bends toward the driven block; a storage groove is provided on the side of the driven block facing the strip; the strip is located at the two ends of the corrugated groove, and the position of the loose strip is the same in the damping groove; the number of the storage grooves is the same as the number of the loose strips; after the driven block approaches the reinforcement groove, the loose strip can be inserted into the storage groove.

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