Emergency pump bottom valve component for cabin vertical shaft

Abstract

The invention discloses an emergency pump bottom valve component for a cabin vertical shaft, and relates to the technical field of pump bottom valves, the emergency pump bottom valve component comprises a supporting seat, an outer valve body and a valve core, the supporting seat comprises a connecting ring, the outer valve body comprises an outer shell, the inner side of the lower end of the outer shell is provided with an outer valve body inner edge, and the valve core is slidably arranged in the outer shell; an elastic supporting piece is arranged on the inner edge of the outer valve body, the valve element comprises an upper shell and a lower shell, a plurality of partition plates are connected between the upper shell and the lower shell, a liquid outlet is formed in the middle of the upper shell, a valve element outer edge is arranged on the outer side of the lower shell, and a sealing piece is arranged at the bottom of the inner edge of the outer valve body. When the emergency pump is put down, the valve element is driven to move downwards, the outer edge of the valve element is separated from the inner edge of the outer valve body, liquid goods can flow into the liquid outlet through a channel between the upper shell and the lower shell, pumping out of the liquid goods is achieved, an operator does not need to independently control opening and closing of the bottom valve, and the working efficiency is higher.

Description

Technical Field

[0001] The present application relates to the technical field of pump well bottom valves, and in particular to an emergency pump well bottom valve component for a cabin shaft. Background Art

[0002] A submersible pump is a device used to pump liquids. A submersible pump used in an emergency is called an emergency pump. Emergency pumps usually need to cooperate with a pump well for pumping operations. The emergency pump is set in the pump well. A bottom valve is set at the bottom of the pump well. The pump well is connected to the liquid storage tank through the bottom valve. The common bottom valve mainly includes a valve body and a valve core set in the valve body. The valve core is manually controlled to realize the conduction and shutoff of the bottom valve. For example, when it is necessary to pump liquid cargo, first move the emergency pump to the pump well, and then control the bottom valve to conduct the pump well and the liquid storage tank, so that the liquid cargo in the liquid storage tank is introduced into the pump well through the bottom valve, and then enters the emergency pump set in the pump well, thereby realizing the pumping of liquid cargo. When it is necessary to stop pumping liquid cargo, first control the bottom valve to shut off the pump well and the liquid storage tank, so that the liquid cargo in the liquid storage tank cannot be introduced into the pump well through the bottom valve, and then move the emergency pump outside the pump well.

[0003] However, since the bottom valve needs to be controlled before each pumping operation to connect the pump well and the liquid storage tank, the process of the pumping operation is more complicated, which reduces the pumping efficiency. Summary of the invention

[0004] In order to realize automatic opening of the bottom valve and improve the use efficiency of the emergency pump, the present application provides an emergency pump bottom valve component for a cabin shaft.

[0005] The present application provides an emergency pump bottom valve component for a cabin shaft, which adopts the following technical solution:

[0006] The invention discloses an emergency pump bottom valve component for a cabin shaft, comprising a support seat, an outer valve body and a valve core, wherein the support seat comprises a connecting ring connected to the bottom end of the pump shaft, and the connecting ring is annular, the outer valve body comprises a cylindrical outer shell body fixedly connected to the bottom of the connecting ring, an inner edge of the outer valve body is arranged on the inner side of the lower end of the outer shell body, the valve core is arranged inside the outer shell body for sliding up and down, and an elastic support for supporting the valve core is arranged on the inner edge of the outer valve body, the valve core comprises an upper shell body and a lower shell body, a plurality of circumferentially evenly distributed partitions are connected between the upper shell body and the lower shell body, a liquid outlet is arranged in the middle position of the upper shell body, an outer edge of the valve core is arranged on the outer side of the lower shell body, the outer edge of the valve core is located directly below the inner edge of the outer valve body, and a sealing member is arranged at the bottom of the inner edge of the outer valve body.

[0007] By adopting the above technical scheme, the outer valve body is connected to the bottom of the pump well through the support seat, the valve core is located inside the outer valve body and is supported by the elastic support member. When the emergency pump is lowered, the bottom of the emergency pump will resist the upper shell body and drive the valve core to overcome the supporting force of the elastic support member and move downward. At this time, the outer edge of the valve core is separated from the inner edge of the outer valve body, and the liquid cargo can flow to the liquid outlet through the channel between the upper shell body and the lower shell body, and can be extracted by the emergency pump to achieve the pumping out of the liquid cargo. When the emergency pump is lifted to the top of the pump well, the valve core is reset by the supporting force of the elastic support member, so that the outer edge of the valve core resists the outer side of the inner edge of the outer valve body and achieves a sealing effect through the sealing member. There is no need for the operator to control the opening and closing of the bottom valve separately, and the working efficiency is higher.

[0008] Preferably, the upper surface of the connecting ring is provided with a first connecting hole for connecting to the pump well, the lower surface is provided with a second connecting hole for connecting to the outer shell, and the inner upper edge of the connecting ring is provided with an inclined support surface for supporting the emergency pump, and the side end of the connecting ring is provided with a threaded hole and a light hole that are interconnected, a positioning screw is threadedly connected in the threaded hole, and the positioning screw passes through the light hole, and both ends of the positioning screw are respectively welded and fixed to the inner and outer surfaces of the connecting ring.

[0009] By adopting the above technical solution, after the emergency pump is lowered, the bottom will be supported by the diagonal support surface to improve its stability. In addition, a number of stop blocks are generally provided at the bottom of the emergency pump. When the emergency pump is in use, it will be driven by its own rotor to rotate. After rotating a certain angle, one of the stop blocks will resist the positioning screw, thereby limiting the rotation of the emergency pump relative to the pump well and the bottom valve.

[0010] Preferably, a first sealing ring is provided on the upper surface of the connecting ring, and the first sealing ring abuts against the bottom end of the pump well.

[0011] By adopting the above technical solution, the first sealing ring can improve the sealing between the connecting ring and the bottom end of the pump well, and liquid cargo enters the pump well when the bottom valve is closed.

[0012] Preferably, a convex edge is provided on the outer side of the upper end of the outer shell, and a plurality of third connecting holes distributed at equal intervals are opened on the convex edge for connecting the connecting ring. A second sealing ring is provided on the upper surface of the convex edge, and the second sealing ring is abutted against the bottom of the connecting ring.

[0013] By adopting the above technical solution, the second sealing ring can improve the sealing between the connecting ring and the outer shell, preventing liquid cargo from entering the interior of the outer shell.

[0014] Preferably, the elastic support member includes a lifting ring fixed to the upper end of the valve core, the lifting ring is provided with a plurality of lifting holes distributed at equal intervals, a guide nut is arranged in the lifting hole, a plurality of mounting holes distributed at equal intervals are arranged along the upper surface of the outer valve body, the mounting holes are connected with guide bolts, and a support spring is sleeved on the outer side of the guide bolt, the upper end of the support spring is pressed against the outer side of the guide nut, and a guide rod is fixed to the upper end of a part of the guide bolts, and the upper end of the guide rod slides through the guide nut at the corresponding position, a connecting tube is arranged at the upper end of the outer side of the upper shell body, and the upper end of the connecting tube is fixedly connected to the lifting ring.

[0015] By adopting the above technical solution, when the bottom valve is closed, the supporting spring squeezes the lifting ring upward, thereby driving the valve core to be squeezed upward. At this time, the outer edge of the valve core and the inner edge of the outer valve body are against each other to achieve a sealing effect. When the emergency pump squeezes the valve core downward, the lifting ring will move downward and compress the supporting spring. At the same time, the outer edge of the valve core and the inner edge of the outer valve body are separated, and the liquid cargo can enter the bottom valve through the upper shell and the lower shell. Moreover, the lifting and lowering of the lifting ring is guided by a number of guide rods, which can prevent it from tilting or getting stuck, thereby improving the smoothness of equipment use and reducing the failure rate.

[0016] Preferably, a plurality of reinforcing plates distributed at equal intervals are arranged between the inner side of the connecting tube and the upper shell body, and a plurality of drainage holes are opened at the bottom of the connecting tube.

[0017] By adopting the above technical solution, when the liquid cargo is pumped out and the emergency pump is taken out upward, the residual liquid above the bottom valve and the inner side of the connecting tube can flow downward from the drainage hole to prevent the residual liquid from remaining above the bottom valve.

[0018] Preferably, the sealing member comprises a Variseal sealing ring and a V-shaped sealing ring, a first mounting groove and a second mounting groove are provided on the lower surface of the inner edge of the outer valve body, and the first mounting groove is located outside the second mounting groove, the Variseal sealing ring is installed in the second mounting groove, and the V-shaped sealing ring is installed in the first mounting groove.

[0019] By adopting the above technical solution, through the double sealing effect of the pan-seal ring and the V-shaped seal ring, when the outer edge of the valve core abuts against the inner edge of the outer valve body, the bottom valve can be fully closed to prevent liquid cargo from seeping into the pump well from between the outer edge of the valve core and the inner edge of the outer valve body, thereby further improving the sealing effect of the bottom valve.

[0020] Preferably, a plurality of fixing sleeves aligned with the guide rods are fixed on the lifting ring, a first sliding hole is opened in the middle of the fixing sleeve, a fixing block is arranged at the upper end of the fixing sleeve, a sliding rod is slidingly arranged in the first sliding hole, a clamping block is connected to the end of the sliding rod close to the inner side of the valve core, a push block is fixed to the upper surface of the end of the sliding rod close to the outer side of the valve core, a thrust spring is arranged between the push block and the fixing block, and an extrusion slope is arranged on the lower surface of the end of the sliding rod close to the outer side of the valve core.

[0021] By adopting the above technical solution, when the emergency pump drives the lifting ring to move downward, the guide rod will resist the extrusion slope when the lifting ring descends, and move the slide rod toward the emergency pump. When the guide rod is completely against the end of the slide rod, the block just resists the side end of the emergency pump. The bottom of the emergency pump is provided with an outward-folded flange. At this time, the bottom of the block just resists the top of the flange. At this time, the relative position of the valve core and the emergency pump can be further locked to prevent the lifting ring from overcoming the support spring and descending when the equipment or the hull vibrates, resulting in a gap between it and the emergency pump, thereby causing the liquid cargo to flow less smoothly. Moreover, when the emergency pump rises, the thrust spring will drive the slide rod to reset, thereby making the block stay away from the emergency pump and will not affect the rise of the emergency pump.

[0022] Preferably, a vertical seat is provided at one end of the slide rod close to the inner side of the valve core, a slide groove is provided on the vertical seat, a slider is fixed on the clamping block, and the slider is slidably arranged in the slide groove, a transverse limit hole is provided in the slide rod and passes through the slide rod and the vertical seat, a limit rod is slid in the transverse limit hole, and a first chamfer and a second chamfer are respectively provided at both ends of the limit rod, the first chamfer is flush with the extrusion inclined surface, a locking hole is provided on the slide rod, one end of the limit rod with the second chamfer is inserted into the locking hole, and a magnetic block is embedded on the inner side of the clamping block.

[0023] By adopting the above technical solution, when the thrust spring is damaged or falls off, the block cannot automatically reset. When the lifting ring rises, the block is still blocked above the bottom flange of the emergency pump. At this time, the emergency pump continues to rise, and the edge of the locking hole will abut against the second chamfer, squeezing the first limit rod outward. When the limit rod is completely separated from the locking hole, the slider can be separated from the slide groove upward and will not block the rise of the emergency pump. Since the magnetic block is adsorbed on the emergency pump, when the emergency pump is taken out of the pump well, the operator can observe the block adsorbed on the emergency pump and perform maintenance according to actual conditions. Moreover, during the use of the emergency pump, the outer end of the limit rod is blocked by the guide rod, so that the other end of the limit rod will not be separated from the locking hole. At this time, the position of the block is locked, and it can play a limiting role when the emergency pump is in use.

[0024] Preferably, a plurality of stoppers are fixedly arranged on the outer side of the upper surface of the lifting ring, and the stoppers are aligned with guide rods at corresponding positions.

[0025] By adopting the above technical solution, when the bottom valve is closed, the thrust spring will drive the sliding rod to move outward so that the ends of the sliding rod and the limit rod both abut against the block, thereby preventing the limit rod from moving outward relative to the sliding rod, ensuring that when the bottom valve is closed, the end of the limit rod can be inserted into the locking hole to prevent the block from falling off when the hull shakes.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. By utilizing the weight of the emergency pump itself, when the emergency pump is lowered, the bottom of the emergency pump will press against the upper shell and drive the valve core to overcome the supporting force of the elastic support and move downward. At this time, the outer edge of the valve core is separated from the inner edge of the outer valve body, and the liquid cargo can flow to the liquid outlet through the channel between the upper shell and the lower shell, and can be extracted by the emergency pump to achieve the pumping out of the liquid cargo. When the emergency pump is lifted above the pump well, the valve core is reset by the supporting force of the elastic support, so that the outer edge of the valve core presses against the outer side of the inner edge of the outer valve body and achieves a sealing effect through the sealing member. The operator does not need to control the opening and closing of the bottom valve separately, and the work efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present application;

[0029] Figure 2 This is a schematic diagram of the support base structure mainly embodied in this application;

[0030] Figure 3 This is a schematic diagram mainly showing the structure of the outer valve body and the elastic support member of this application;

[0031] Figure 4 This is a schematic diagram of the valve core structure mainly embodied in this application;

[0032] Figure 5 This is a schematic diagram of the seal structure mainly embodied in this application;

[0033] Figure 6 This is a schematic diagram of the fixed sleeve structure mainly embodied in this application;

[0034] Figure 7 This is a schematic diagram mainly showing the internal structure of the fixed sleeve in this application;

[0035] Figure 8 This is a schematic diagram of the overall structure of Embodiment 3 of the present application;

[0036] Fig. 9 This is a schematic diagram of the sealing rubber ring structure mainly embodied in this application;

[0037] 1. Pump well; 2. Support seat; 21. Connecting ring; 22. First connecting hole; 23. Second connecting hole; 24. Slanted support surface; 25. Threaded hole; 26. Light hole; 27. Positioning screw; 28. First sealing ring; 3. Outer valve body; 31. Outer valve body; 32. Inner edge of outer valve body; 33. Flange; 34. Third connecting hole; 35. Second sealing ring; 36. Mounting hole; 37. First mounting groove; 38. Second mounting groove; 4. Valve core; 41. Upper shell; 42. Lower shell; 43. Partition; 44. Liquid outlet; 45. Outer edge of valve core; 46. Connecting tube; 47. Reinforcement plate; 48. Drain hole; 5. Elastic support; 51. Lifting ring; 52. Guide bolt; 53. Guide rod; 54. Lifting hole; 55, guide nut; 56, support spring; 6, seal; 61, V-shaped seal ring; 62, universal seal ring; 7, fixed sleeve; 71, first slide hole; 72, fixed block; 8, slide rod; 81, vertical seat; 82, slide groove; 83, push block; 84, thrust spring; 85, slider; 86, block; 87, extrusion slope; 88, transverse limit hole; 89, locking hole; 9, limit rod; 91, first chamfer; 92, second chamfer; 93, stopper; 101, bottom valve housing; 102, bottom valve outer edge; 103, bottom valve inner edge; 104, sealing plate; 105, vertical rod; 106, stopper; 107, sealing spring; 108, bump; 109, support plate; 110, outer lip; 111, inner lip. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-9 This application is described in further detail.

[0039] An embodiment of the present application discloses an emergency pump bottom valve component for a cabin shaft.

[0040] Embodiment 1

[0041] Reference Figure 1 A bottom valve component of an emergency pump for a cabin shaft includes a support seat 2, an outer valve body 3, and a valve core 4. The support seat 2 is connected to the bottom end of a pump well 1, the outer valve body 3 is fixed below the support seat 2, and the valve core 4 is arranged on the inner side of the outer valve body 3 for lifting and sliding, and an elastic support member 5 for supporting the valve core 4 upward is arranged inside the outer valve body 3. When the emergency pump is placed in the pump well 1, the gravity of the emergency pump itself will press on the valve core 4, causing the valve core 4 to move downward, thereby opening the bottom valve to achieve a pumping effect.

[0042] refer to Figure 2The support seat 2 includes a connecting ring 21 connected to the bottom end of the pump well 1, and the connecting ring 21 is annular, and the upper surface of the connecting ring 21 is provided with a plurality of first connecting holes 22 for connecting to the pump well 1, and the lower surface is provided with a plurality of second connecting holes 23 for connecting to the outer shell 31, and the inner upper edge of the connecting ring 21 is provided with an inclined support surface 24 for supporting the emergency pump, and the side end of the connecting ring 21 is provided with a threaded hole 25 and a light hole 26 that are interconnected, and a positioning screw 27 is threadedly connected in the threaded hole 25, and the positioning screw 27 passes through the light hole 26, and its end extends to the inner side of the connecting ring 21, and the two ends of the positioning screw 27 are respectively welded and fixed to the inner and outer surfaces of the connecting ring 21, and a first sealing ring 28 is provided between the upper surface of the connecting ring 21 and the bottom end of the pump well 1.

[0043] It should be noted that, in actual use, a plurality of stop blocks are generally provided at the bottom of the emergency pump. When the emergency pump is lowered, it is supported by the diagonal support surface 24, and at this time, the stop block and the positioning screw 27 are at the same height. During the use of the emergency pump, it will be driven by its own rotor to rotate. After rotating a certain angle, one of the stop blocks will be against the positioning screw 27, which can limit the rotation of the emergency pump relative to the pump well 1 and the bottom valve, thereby improving the stability of the emergency pump. In addition, the first sealing ring 28 can improve the sealing between the connecting ring 21 and the bottom end of the pump well 1. The liquid cargo enters the pump well 1 when the bottom valve is closed, thereby improving the sealing effect of the bottom valve.

[0044] refer to Figure 3 and Figure 4 The outer valve body 3 includes an outer shell 31 fixedly connected to the bottom of the connecting ring 21 and in a cylindrical shape. An outer valve body inner edge 32 is arranged on the inner side of the lower end of the outer shell 31, and a flange 33 is arranged on the outer side of the upper end of the outer shell 31. A plurality of third connecting holes 34 distributed at equal intervals are opened on the flange 33 for connecting the connecting ring 21. A second sealing ring 35 is arranged on the upper surface of the flange 33, and the second sealing ring 35 is abutted against the bottom of the connecting ring 21. The elastic support member 5 is arranged on the inner edge 32 of the outer valve body. 2, and the valve core 4 includes an upper shell 41 and a lower shell 42, a plurality of circumferentially evenly distributed partitions 43 are connected between the upper shell 41 and the lower shell 42, a liquid flow channel is formed between the partitions 43, a liquid outlet 44 is arranged in the middle of the upper shell 41, and the emergency pump will abut against the upper edge of the liquid outlet 44 when it is lowered, and a valve core outer edge 45 is arranged on the outer side of the lower shell 42, and the valve core outer edge 45 is located directly below the inner edge 32 of the outer valve body, and a sealing member 6 is arranged at the bottom of the inner edge 32 of the outer valve body.

[0045] Through the above-mentioned arrangement, the second sealing ring 35 can improve the sealing between the connecting ring 21 and the outer shell 31 to prevent liquid cargo from entering the inner part of the outer shell 31. When the valve core 4 is subjected to the downward pressure of the emergency pump, the valve core 4 overcomes the supporting force of the elastic support member 5 and moves downward. At this time, the outer edge 45 of the valve core is separated from the inner edge 32 of the outer valve body, and the liquid cargo can flow to the liquid outlet 44 through the liquid flow channel between the upper shell 41 and the lower shell 42, and can be extracted by the emergency pump to realize the pumping out of the liquid cargo. When the emergency pump is lifted to the top of the pump well 1, the valve core 4 is reset by the supporting force of the elastic support member 5, so that the outer edge 45 of the valve core is against the outer side of the inner edge 32 of the outer valve body and the sealing effect is achieved through the sealing member 6. There is no need for the operator to control the opening and closing of the bottom valve separately, and the working efficiency is higher.

[0046] Specifically, a plurality of equally spaced mounting holes 36 are provided on the upper surface of the inner edge 32 of the outer valve body, and a guide bolt 52 is connected to the mounting hole 36. A connecting tube 46 is provided at the upper end of the outer side of the upper shell body 41, and a lifting ring 51 is connected to the upper end of the connecting tube 46. A plurality of equally spaced lifting holes 54 are provided on the lifting ring 51, and a guide nut 55 is provided in the lifting hole 54. The elastic support member 5 also includes a plurality of supporting springs 56, which are respectively located between the guide bolts 52 and the guide nuts 55 to play a supporting role. A guide rod 53 is fixed to the upper end of a portion of the guide bolts 52, and the upper end of the guide rod 53 slides through the guide nut 55 at the corresponding position.

[0047] Through the above arrangement, when the bottom valve is in the closed state, the support spring 56 squeezes the lifting ring 51 upward, thereby driving the valve core 4 to be squeezed upward. At this time, the outer edge 45 of the valve core and the inner edge 32 of the outer valve body are against each other, and under the action of the sealing member 6, a sealing effect is achieved. When the emergency pump squeezes the valve core 4 downward, the lifting ring 51 will move downward and compress the support spring 56. At the same time, the outer edge 45 of the valve core and the inner edge 32 of the outer valve body are separated, and the liquid cargo can enter the bottom valve through the upper shell 41 and the lower shell 42. Moreover, the lifting and lowering of the lifting ring 51 is guided by a plurality of guide rods 53, which can prevent it from being skewed or stuck, thereby improving the smoothness of equipment use and reducing the failure rate.

[0048] Specifically, a plurality of reinforcing plates 47 are arranged between the inner side of the connecting tube 46 and the upper shell 41, and the reinforcing plates 47 are distributed at equal intervals. A plurality of drainage holes 48 are opened at the bottom of the connecting tube 46, and each gap of the reinforcing plates 47 has a corresponding drainage hole 48. When the liquid cargo is pumped out and the emergency pump is taken out upward, the residual liquid above the bottom valve and the inner side of the connecting tube 46 can flow downward from the drainage hole 48, preventing the residual liquid from remaining above the bottom valve and preventing the volatile gas from being discharged from the pump well 1.

[0049] refer to Figure 5The sealing member 6 comprises a universal seal ring 62 and a V-shaped seal ring 61. A first mounting groove 37 and a second mounting groove 38 are provided on the lower surface of the inner edge 32 of the outer valve body. The universal seal ring 62 is installed in the second mounting groove 38, and the V-shaped seal ring 61 is installed in the first mounting groove 37. The first mounting groove 37 is located outside the second mounting groove 38. When the outer edge 45 of the valve core abuts against the inner edge 32 of the outer valve body, the double sealing effect of the universal seal ring 62 and the V-shaped seal ring 61 can fully close and seal the bottom valve, prevent liquid cargo from seeping into the pump well from between the outer edge 45 of the valve core and the inner edge 32 of the outer valve body, and further improve the sealing effect of the bottom valve.

[0050] The implementation principle of the first embodiment of the present application is as follows: when the emergency pump is placed in the pump well 1, the emergency pump will abut against the upper edge of the liquid outlet 44 when it is lowered, and drive the valve core 4 to overcome the supporting force of the supporting spring 56 and move downward, and finally the emergency pump is supported by the inclined support surface 24. At this time, the outer edge 45 of the valve core is separated from the inner edge 32 of the outer valve body, and the liquid cargo can flow into the liquid outlet 44 through the liquid flow channel between the upper shell 41 and the lower shell 42, and can be extracted by the emergency pump to achieve the pumping out of the liquid cargo. Moreover, during the use of the emergency pump, it will be driven by its own rotor to rotate. After rotating to a certain angle, one of the stop blocks will abut against the positioning screw 27, so as to limit the rotation of the emergency pump relative to the pump well 1 and the bottom valve, thereby improving the stability of the emergency pump. When the emergency pump is lifted to the top of the pump well 1, the valve core 4 is reset by the supporting force of the elastic support member 5, so that the outer edge 45 of the valve core abuts against the outer side of the inner edge 32 of the outer valve body and achieves sealing through the sealing member 6. The effect is that the operator does not need to control the opening and closing of the bottom valve separately, and the work efficiency is higher. When the bottom valve is in the closed state, the support spring 56 squeezes the lifting ring 51 upward, thereby driving the valve core 4 to squeeze upward. At this time, the outer edge 45 of the valve core and the inner edge 32 of the outer valve body are against each other. The double sealing effect of the pan plug seal 62 and the V-shaped seal 61 can fully close and seal the bottom valve, preventing liquid cargo from penetrating into the pump well from between the outer edge 45 of the valve core and the inner edge 32 of the outer valve body, further improving the sealing effect of the bottom valve, and in the process of the lifting ring 51 moving up and down, it is guided by a number of guide rods 53 to prevent it from being skewed or stuck, improving the smoothness of the equipment and reducing the failure rate. In summary, when the emergency pump is not in use, the bottom valve relies on the elastic force in the elastic support member 5 to make the inner edge 32 of the outer valve body and the end face of the outer edge 45 of the valve core fit tightly, and is sealed by the seal 6 to ensure that the liquefied natural gas and other liquid cargo in the cabin will not leak. The emergency pump is installed when it is needed.

[0051] Embodiment 2

[0052] Reference Figure 6 and Figure 7The difference between this embodiment and the embodiment 1 is that a plurality of fixing sleeves 7 aligned with the guide rods 53 are fixed on the lifting ring 51, a first sliding hole 71 is provided in the middle of the fixing sleeve 7, a fixing block 72 is provided at the upper end of the fixing sleeve 7, a sliding rod 8 is slidably provided in the first sliding hole 71, a vertical seat 81 is provided at one end of the sliding rod 8 close to the inner side of the valve core 4, a sliding groove 82 is provided on the vertical seat 81, a sliding block 85 is slidably provided in the sliding groove 82, and a clamping block 86 is fixed on the sliding block 85, a magnetic block is embedded in the inner side of the clamping block 86, and the upper surface of the end of the sliding rod 8 close to the outer side of the valve core 4 is fixed. A push block 83 is fixed, a thrust spring 84 is arranged between the push block 83 and the fixed block 72, and an extrusion slope 87 is arranged on the lower surface of one end of the slide rod 8 close to the outer side of the valve core 4, and a transverse limit hole 88 is opened in the slide rod 8 to penetrate the slide rod 8 and the vertical seat 81, a limit rod 9 is slid in the transverse limit hole 88, and the two ends of the limit rod 9 are respectively provided with a first chamfer 91 and a second chamfer 92, the first chamfer 91 is flush with the extrusion slope 87, and a locking hole 89 is opened on the slider 85, and one end of the limit rod 9 with the second chamfer 92 is inserted into the locking hole 89.

[0053] When the emergency pump drives the lifting ring 51 to move downward, the guide rod 53 will abut against the extrusion inclined surface 87 when the lifting ring 51 descends, and move the slide bar 8 towards the direction close to the emergency pump. When the guide rod 53 is completely against the end of the slide bar 8, the block 86 just abuts against the side end of the emergency pump. A flange folded outward is provided at the bottom of the emergency pump. At this time, the bottom of the block 86 just abuts against the top of the flange. At this time, the outer end of the limit rod 9 is blocked by the guide rod 53, so that the other end of the limit rod 9 will not disengage from the locking hole 89. At this time, the position of the block 86 is locked, and then it can play a limiting role when the emergency pump is used to prevent the lifting ring 51 from overcoming the support spring 56 and descending when the equipment or the hull vibrates, resulting in a gap between it and the emergency pump, thereby causing the liquid cargo to flow not smoothly enough, and when the emergency pump rises, the thrust spring 84 will drive the slide bar 8 to reset, so that the block 86 is away from the emergency pump and will not affect the rise of the emergency pump.

[0054] When the thrust spring 84 is damaged or falls off, the block 86 cannot automatically reset. When the lifting ring 51 rises, the block 86 is still blocked above the bottom flange of the emergency pump. At this time, the emergency pump continues to rise, and the edge of the locking hole 89 will abut against the second chamfer 92, squeezing the first limit rod 9 outward. When the limit rod 9 is completely separated from the locking hole 89, the slider 85 can be separated from the slide groove 82 upward and will not block the rise of the emergency pump. Since the magnetic block is adsorbed on the emergency pump, when the emergency pump is taken out of the pump well 1, the operator can observe the block 86 adsorbed on the emergency pump and perform maintenance according to the actual situation.

[0055] Specifically, a plurality of blocks 93 are fixed on the outer side of the upper surface of the lifting ring 51, and the blocks 93 are aligned with the guide rods 53 at corresponding positions. When the bottom valve is closed, the thrust spring 84 drives the slide rod 8 to move outward so that the ends of the slide rod 8 and the limit rod 9 are both against the block 93, thereby preventing the limit rod 9 from moving outward relative to the slide rod 8, ensuring that when the bottom valve is closed, the end of the limit rod 9 can be inserted into the locking hole 89 to prevent the block 86 from falling off when the hull shakes.

[0056] The implementation principle of the second embodiment is as follows: when the emergency pump drives the lifting ring 51 to move downward, the guide rod 53 will abut against the extrusion inclined surface 87 when the lifting ring 51 descends, and move the slide bar 8 towards the direction close to the emergency pump. When the guide rod 53 is completely against the end of the slide bar 8, the block 86 just abuts against the side end of the emergency pump. The bottom of the emergency pump is provided with an outwardly folded flange. At this time, the bottom of the block 86 just abuts against the top of the flange. At this time, the relative position of the valve core 4 and the emergency pump can be further locked to prevent the lifting ring 51 from overcoming the support spring 56 to descend when the equipment or the hull vibrates, resulting in a gap between it and the emergency pump, thereby causing the liquid cargo to flow less smoothly. Moreover, when the emergency pump rises, the thrust spring 8 4 will drive the slide bar 8 to reset, thereby making the block 86 away from the emergency pump, which will not affect the rise of the emergency pump, and when the thrust spring 84 is damaged or falls off, the block 86 cannot automatically reset. When the lifting ring 51 rises, the block 86 is still blocked above the bottom flange of the emergency pump. At this time, the emergency pump continues to rise, and the edge of the locking hole 89 will abut against the second chamfer 92, squeezing the first limit rod 9 outward. When the limit rod 9 is completely separated from the locking hole 89, the slider 85 can be separated from the slide groove 82 upward, and will not block the rise of the emergency pump. Since the magnetic block is adsorbed on the emergency pump, when the emergency pump is taken out of the pump well 1, the operator can observe the block 86 adsorbed on the emergency pump and can perform maintenance according to the actual situation.

[0057] Embodiment 3

[0058] refer to Figure 8 and Fig. 9 A bottom valve component of an emergency pump for a cabin shaft comprises a bottom valve housing 101 fixed at the bottom end of a pump shaft 1, a bottom valve inner edge 103 and a bottom valve outer edge 102 are arranged at the bottom of the bottom valve housing 101, a sealing plate 104 is arranged below the bottom valve housing 101, a plurality of vertical rods 105 distributed at equal intervals are fixed to the peripheral side of the sealing plate 104, a plurality of sliding holes are opened on the outer edge 102 of the bottom valve, the vertical rods 105 are slidably arranged in the sliding holes at corresponding positions, a blocking cover 106 is arranged at the upper end of the vertical rod 105, a sealing spring 107 is sleeved on the vertical rod 105, and the two ends of the sealing spring 107 are respectively against the blocking cover 106 and the outer edge 102 of the bottom valve, and a plurality of supporting plates 109 are arranged at the bottom of the emergency pump.

[0059] Through the above arrangement, when the emergency pump is placed in the pump well 1, the support plate 109 will abut against the sealing plate 104 and press the sealing plate 104 downward, so that the sealing plate 104 is separated from the bottom of the bottom valve housing 101, and finally the edge of the emergency pump will abut against the inner edge 103 of the bottom valve. When pumping liquid, the liquid cargo passes between the sealing plate 104 and the bottom valve housing 101, and enters the emergency pump through the gap of the support plate 109. When the emergency pump is not in use, the bottom valve relies on the elastic force of the sealing spring 107 to make the sealing plate 104 fit tightly with the bottom of the bottom valve housing 101, which can ensure that the liquefied natural gas and other liquid cargo in the cabin does not leak. The emergency pump is installed when it is needed.

[0060] Specifically, a protrusion 108 is provided on the inner edge 103 of the bottom valve. After the emergency pump is placed in the pump well 1, the protrusion 108 and the support plate 109 are cross-distributed, which can limit the rotation of the emergency pump and improve the operation stability.

[0061] In addition, a sealing rubber ring is arranged at the bottom of the bottom valve housing 101. The sealing rubber ring is N-shaped and is fixed to the bottom of the bottom valve housing 101 by bolts and gaskets. The sealing rubber ring has an inner lip 111 and an outer lip 110. Under normal aging conditions of the sealing rubber ring, the outer lip 110 fails first. After the outer lip 110 fails, the inner lip 111 can also play a temporary sealing role to avoid serious problems with the sealing of the equipment due to aging of the sealing rubber ring.

[0062] The implementation principle of the third embodiment is: when the emergency pump is not in use, the bottom valve relies on the elastic force of the sealing spring 107 to make the sealing plate 104 fit tightly with the bottom of the bottom valve housing 101, and cooperates with the sealing effect of the sealing rubber ring to ensure that the liquefied natural gas and other liquid cargoes in the cabin will not leak. The emergency pump is installed when it is needed. After the emergency pump is placed in the pump well 1, the support plate 109 will abut against the sealing plate 104 and squeeze the sealing plate 104 downward, so that the sealing plate 104 is separated from the bottom of the bottom valve housing 101, and finally the edge of the emergency pump will abut against the inner edge 103 of the bottom valve. When pumping liquid, the liquid cargo passes between the sealing plate 104 and the bottom valve housing 101, and passes through the gap of the support plate 109 into the emergency pump to achieve the pumping effect.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An emergency pump bottom valve component for a cabin shaft, characterized in that: The invention comprises a support seat (2), an outer valve body (3), and a valve core (4); the support seat (2) comprises a connecting ring (21) connected to the bottom end of a pump well (1); the outer valve body (3) comprises a cylindrical outer shell (31) fixedly connected to the bottom of the connecting ring (21); an inner edge (32) of the outer valve body is arranged on the inner side of the lower end of the outer shell (31); the valve core (4) is arranged inside the outer shell (31) to slide up and down, and a spring for supporting the valve core (4) is arranged on the inner edge (32) of the outer valve body. The valve core (4) comprises an upper shell (41) and a lower shell (42), a plurality of circumferentially evenly distributed partitions (43) are connected between the upper shell (41) and the lower shell (42), a liquid outlet (44) is provided in the middle of the upper shell (41), a valve core outer edge (45) is provided on the outer side of the lower shell (42), the valve core outer edge (45) is located directly below the inner edge (32) of the outer valve body, and a sealing member (6) is provided at the bottom of the inner edge (32) of the outer valve body.

2. The emergency pump bottom valve component for a cabin shaft according to claim 1, characterized in that: The upper surface of the connecting ring (21) is provided with a first connecting hole (22) for connecting to the pump well (1), and the lower surface is provided with a second connecting hole (23) for connecting to the outer shell (31), and the inner upper edge of the connecting ring (21) is provided with an inclined support surface (24) for supporting the emergency pump, and the side end of the connecting ring (21) is provided with a threaded hole (25) and a light hole (26) that are interconnected, and a positioning screw (27) is threadedly connected in the threaded hole (25), and the positioning screw (27) passes through the light hole (26), and the two ends of the positioning screw (27) are respectively welded and fixed to the inner and outer surfaces of the connecting ring (21).

3. The emergency pump bottom valve component for a cabin shaft according to claim 1, characterized in that: A first sealing ring (28) is provided on the upper surface of the connecting ring (21), and the first sealing ring (28) abuts against the bottom end of the pump well (1).

4. The emergency pump bottom valve component for a cabin shaft according to claim 1, characterized in that: A convex edge (33) is arranged on the outer side of the upper end of the outer shell (31), and a plurality of third connection holes (34) distributed at equal intervals are opened on the convex edge (33) for connecting the connection ring (21). A second sealing ring (35) is arranged on the upper surface of the convex edge (33), and the second sealing ring (35) abuts against the bottom of the connection ring (21).

5. The emergency pump bottom valve component for a cabin shaft according to claim 1, characterized in that: The elastic support member (5) comprises a lifting ring (51) fixed to the upper end of the valve core (4), the lifting ring (51) is provided with a plurality of lifting holes (54) distributed at equal intervals, a guide nut (55) is arranged in the lifting hole (54), a plurality of mounting holes (36) distributed at equal intervals is arranged on the upper surface of the inner edge (32) of the outer valve body, a guide bolt (52) is connected to the mounting hole (36), and a support spring (56) is sleeved on the outer side of the guide bolt (52), the upper end of the support spring (56) is pressed against the outer side of the guide nut (55), and a guide rod (53) is fixed to the upper end of a part of the guide bolts (52), and the upper end of the guide rod (53) slides through the guide nut (55) at the corresponding position, and a connecting tube (46) is arranged on the upper end of the outer side of the upper shell (41), and the upper end of the connecting tube (46) is fixedly connected to the lifting ring (51).

6. The emergency pump bottom valve component for a cabin shaft according to claim 5, characterized in that: A plurality of reinforcing plates (47) distributed at equal intervals are arranged between the inner side of the connecting tube (46) and the upper shell (41), and a plurality of drainage holes (48) are opened at the bottom of the connecting tube (46).

7. The emergency pump bottom valve component for a cabin shaft according to claim 1, characterized in that: The sealing member (6) comprises a universal sealing ring (62) and a V-shaped sealing ring (61); a first mounting groove (37) and a second mounting groove (38) are provided on the lower surface of the inner edge (32) of the outer valve body, and the first mounting groove (37) is located outside the second mounting groove (38); the universal sealing ring (62) is installed in the second mounting groove (38), and the V-shaped sealing ring (61) is installed in the first mounting groove (37).

8. The emergency pump bottom valve component for a cabin shaft according to claim 5, characterized in that: A plurality of fixing sleeves (7) aligned with the guide rod (53) are fixed on the lifting ring (51), a first sliding hole (71) is provided in the middle of the fixing sleeve (7), a fixing block (72) is provided at the upper end of the fixing sleeve (7), a sliding rod (8) is slidably provided in the first sliding hole (71), an end of the sliding rod (8) close to the inner side of the valve core (4) is connected to a clamping block (86), a push block (83) is fixed on the upper surface of the end of the sliding rod (8) close to the outer side of the valve core (4), a thrust spring (84) is provided between the push block (83) and the fixing block (72), and an extrusion inclined surface (87) is provided on the lower surface of the end of the sliding rod (8) close to the outer side of the valve core (4).

9. The emergency pump bottom valve component for a cabin shaft according to claim 8, characterized in that: A vertical seat (81) is provided at one end of the slide rod (8) close to the inner side of the valve core (4), and a slide groove (82) is provided on the vertical seat (81). A slider (85) is fixed on the clamping block (86), and the slider (85) is slidably arranged in the slide groove (82). A transverse limiting hole (88) penetrating the slide rod (8) and the vertical seat (81) is provided in the slide rod (8). A limiting rod (9) is slidably arranged in the transverse limiting hole (88), and a first chamfer (91) and a second chamfer (92) are respectively provided at two ends of the limiting rod (9), and the first chamfer (91) is flush with the extrusion inclined surface (87). A locking hole (89) is provided on the slide rod (85), and one end of the limiting rod (9) provided with the second chamfer (92) is inserted into the locking hole (89), and a magnetic block is embedded in the inner side of the clamping block (86).

10. The emergency pump bottom valve component for a cabin shaft according to claim 9, characterized in that: A plurality of stoppers (93) are fixedly arranged on the outer side of the upper surface of the lifting ring (51), and the stoppers (93) are aligned with the guide rods (53) at corresponding positions.

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