Emergency drainage device for cabin vertical shaft

Abstract

The invention discloses an emergency drainage device for a cabin vertical shaft and relates to the field of pump well drainage, the emergency drainage device comprises a pump body and a bottom valve, the pump body comprises a motor shell, an end cover and a middle section are arranged at the upper end of the motor shell, a plurality of first fixing blocks are fixed to the upper surface of the end cover, and connecting seats are arranged on the outer sides of the first fixing blocks; rollers are arranged on the connecting seats, a plurality of second fixing blocks are arranged on the outer side of the middle section, sliding blocks are arranged on the outer sides of the second fixing blocks, and the sliding blocks and the rollers are distributed in a staggered mode in the vertical direction. The side wall of the pump body and the inner wall of the pump well are separated through the sliding blocks and the rolling wheels, in the process of placing the pump body, the sliding blocks and the rolling wheels on the outer side of the pump body can be attached to the inner wall of the pump well, the pump body is prevented from being collided with the inner wall of the pump well, the sliding blocks and the rolling wheels are distributed at different heights and are also distributed in a staggered mode in the vertical direction, and the service life of the pump body is prolonged. And the probability that the outer surface of the pump body collides with the interior of the pump well can be further reduced.

Description

Technical Field

[0001] The present application relates to the field of liquid drainage from pump wells, and particularly to an emergency liquid drainage device for a ship's cabin shaft. Background Art

[0002] A submersible pump is a device for pumping liquids. A submersible pump used for emergency is called an emergency pump. The emergency pump usually needs to cooperate with a pump well for pumping operations. The emergency pump is arranged in the pump well, and a bottom valve is arranged at the bottom of the pump well. The pump well is communicated with a liquid storage tank through the bottom valve. Common bottom valves mainly include a valve body and a valve core arranged in the valve body. The valve core is manually controlled to realize the opening and closing of the bottom valve. For example, when it is necessary to pump liquid cargo, first move the emergency pump into the pump well, and then control the bottom valve to open 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 arranged in the pump well, thereby realizing the pumping of the liquid cargo. When it is necessary to stop pumping the liquid cargo, first control the bottom valve to close 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 out of the pump well.

[0003] In the existing emergency liquid drainage devices, basically the emergency pump is lowered to the bottom of the pump well, and the liquid cargo is pumped out by the emergency pump. When the emergency pump is lowered, the side wall of the emergency pump and the inner wall of the pump well will rub and collide, and may even cause the emergency pump to get stuck, which is not conducive to the installation and use of the emergency pump. Summary of the Invention

[0004] In order to prevent the outer side of the emergency pump from rubbing against the side wall of the pump well, the present application provides an emergency liquid drainage device for a ship's cabin shaft.

[0005] The emergency liquid drainage device for a ship's cabin shaft provided by the present application adopts the following technical solution:

[0006] An emergency liquid drainage device for a ship's cabin shaft includes a pump body and a bottom valve connected to the bottom of the pump well. The pump body includes a motor housing. An end cover is arranged at the upper end of the motor housing, and an intermediate section is arranged at the lower end of the motor housing. A plurality of first fixing blocks are fixed on the upper surface of the end cover, and the plurality of first fixing blocks are evenly distributed around the circumference of the end cover. A connecting seat is arranged outside the first fixing block, and a roller is arranged on the connecting seat. The outer side of the roller can roll along the side wall of the pump well when the pump body descends. A fixing platform is arranged outside the intermediate section, and a plurality of second fixing blocks are fixed on the fixing platform. The plurality of second fixing blocks are evenly distributed around the circumference of the intermediate section. A slider is arranged outside the second fixing block, and the outer side of the slider can slide along the side wall of the pump well when the pump body descends. The slider and the roller are staggered in the vertical direction.

[0007] By adopting the above technical solution, the foot valve is installed at the bottom end of the pump well. The pump body can be placed into the pump well and is matched with the foot valve. After the pump body is placed, the foot valve opens, and then liquid pumping can be carried out. During the process of placing the pump body, the gap between the pump body and the inner wall of the pump well is small. At this time, the sliders and rollers circumferentially and uniformly distributed on the outer side of the pump body can fit with the inner wall of the pump well, preventing the pump body from rubbing against the inner wall of the pump well. Moreover, the sliders and rollers are distributed at different heights and staggered in the vertical direction, which can further reduce the probability of rubbing between the outer surface of the pump body and the inner wall of the pump well, thereby preventing the pump body from being stuck during installation or disassembly.

[0008] Preferably, a transition plate is connected to the lower end of the middle section, and a suction section is connected to the lower end of the transition plate. A rotor component is rotatably arranged inside the motor housing. The upper end of the rotor component is rotatably connected to the end cover, and the lower end is rotatably connected to the lower end of the motor housing. The rotating shaft of the rotor component penetrates through the middle section and the suction section. An impeller is arranged on the rotating shaft of the rotor component, and the impeller is located inside the middle section.

[0009] By adopting the above technical solution, when the pump body is working, the rotor component rotates and drives the impeller to rotate through the rotating shaft at its center, and then liquid pumping can be carried out. Moreover, the outer shell of the pump body is composed of multiple sections, which is more convenient for manufacturing and assembling, and is easy to repair.

[0010] Preferably, an inducer is connected to the end of the rotating shaft of the rotor component, and the inducer is located inside the suction section.

[0011] By adopting the above technical solution, the inducer can be of a type with high suction effect. The inducer with high suction performance has a good effect on sucking the liquid at the bottom of the cargo hold, can minimize the remaining liquid volume in the cargo hold, and improve the pumping effect of the pump body.

[0012] Preferably, an upper cover is fixed to the upper end of the end cover. A connection hole is arranged at the middle position of the upper end surface of the upper cover, and a lifting ring for installing and disassembling the pump body is connected in the connection hole. A junction box is arranged on the end cover.

[0013] By adopting the above technical solution, when installing and disassembling the pump body, it is necessary to lower and lift the pump body through a hoisting device. At this time, the hook can be connected to the lifting ring, which is more convenient to use. Moreover, the lifting ring is on the central axis of the pump body, which can further ensure that the pump body remains vertical during the rising and falling process and reduce the friction with the inner wall of the pump well.

[0014] Preferably, the foot valve comprises a housing fixed to the bottom end of the pump well. An inner edge is provided at the lower end of the housing. A number of guide rods evenly distributed in a circle are fixed on the inner edge. A lifting ring is slidably arranged on the guide rods. A support spring is sleeved on the guide rods, and two ends of the support spring respectively abut against the lifting ring and the inner edge. A valve core wall is connected to the lower end of the lifting ring. An upper housing is arranged inside the valve core wall. A lower housing is arranged below the upper housing. A number of partition plates are connected between the upper housing and the lower housing. An outer edge is provided on the circumferential side of the lower housing, and the outer edge is directly below the inner edge.

[0015] By adopting the above technical solution, when the pump body is not installed, under the action of the support spring, the lifting ring, the upper housing, the lower housing and other components are all in a relatively high position. At this time, the outer edge abuts against the inner edge to achieve a sealing effect and prevent the leakage of liquid cargo. When installing the pump body, the suction section of the pump body will press down the upper housing, causing the lower housing to descend. At this time, the outer edge is separated from the inner edge, and the liquid can enter the suction section through the channel between the upper housing and the lower housing to achieve the pumping effect. When the pump body is installed, the foot valve can be automatically opened without the need for separate control by the operator, and the efficiency is higher during emergency use.

[0016] Preferably, a threaded hole and a smooth hole communicating with each other are provided at the side end of the housing. A positioning screw is threadedly connected in the threaded hole, and the positioning screw passes through the smooth hole. Two ends of the positioning screw are respectively welded and fixed to the inner and outer surfaces of the housing. An installation hole is provided below the transition plate, and a stop bolt is arranged in the installation hole.

[0017] By adopting the above technical solution, after the pump body is placed down, the bottom will be supported by the housing, improving its stability. Moreover, when the pump body is powered on and started, it will be driven to rotate by its own rotor components. After rotating a certain angle, one of the stop bolts will abut against the positioning screw, which can limit the rotation of the pump body relative to the pump well and the foot valve, improving the operation stability of the pump body and the effect of pumping liquid.

[0018] Preferably, a needle roller is inserted into the connecting seat. Split pins for preventing falling off are arranged at both ends of the needle roller. The roller is rotatably arranged on the needle roller, and the outer side surface of the slider is a curved surface.

[0019] By adopting the above technical solution, the outer side surface of the slider being a curved surface can further reduce the contact area with the inner wall of the pump well, reducing the friction force and preventing the pump body from being stuck due to the poor straightness of the inner wall of the pump well. The roller is rotatably connected to the connecting seat through the needle roller, and the split pin at the end of the needle roller is easy to disassemble, making it convenient to replace the roller and prevent the roller from aging.

[0020] Preferably, a rotating hole is formed in the middle of the first fixing block, a rotating rod is rotatably arranged in the rotating hole, and the connecting seat is fixed at the end of the rotating rod. A disc is fixed at the end of the rotating rod away from the connecting seat, and a torsion spring is arranged on the rotating rod. Two ends of the torsion spring are respectively fixed to the connecting seat and the first fixing block.

[0021] By adopting the above technical solution, the roller can deflect as the rotating rod rotates. During the process of the pump body descending, the rotating rod is at a specific angle. At this time, the roller can slide up and down along the inner wall of the pump well. After the pump body is installed and starts for the first time, it will rotate by a certain amplitude. At this time, the roller is subjected to a frictional force in the horizontal direction. At this time, the roller can rotate 90°, and then slide in the horizontal direction, preventing sliding friction between the roller and the inner wall of the pump well and accelerating the aging of the roller.

[0022] Preferably, a sliding rod is connected to the upper end of the upper cover, and a sliding sleeve is arranged on the outer side of the sliding rod. The lifting ring is fixed at the upper end of the sliding sleeve, and a cross bar is arranged at the side end of the sliding sleeve. An arc-shaped groove is formed on the side of the disc away from the connecting seat, and the cross bar is inserted into the arc-shaped groove. The cross bar rising can drive the disc to rotate 90° through the arc-shaped groove.

[0023] By adopting the above technical solution, after the pump body is installed, under the action of the torsion spring, the rotating rod is at a specific angle. At this time, the roller can roll at the horizontal height of the pump well, which is suitable for the deflection when the pump body starts. During the process of the pump body being lifted and lowered, the lifting ring is subjected to the pulling force of the hoisting device. Under the action of the gravity of the pump body itself, the sliding sleeve and the sliding rod are stretched. At this time, the sliding sleeve moves upward relative to the sliding rod. At this time, the cross bar moves upward relative to the disc. The end of the cross bar is inserted into the arc-shaped groove, which will drive the disc to rotate 90°. At this time, the roller can roll in the vertical direction of the pump well, ensuring that the roller and the inner wall of the pump well are always in a rolling state, reducing the wear of the roller, and improving the smoothness during the installation and use of the pump body.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The side wall of the pump body and the inner wall of the pump well are separated by the slider and the roller. During the process of putting the pump body in, the gap between the pump body and the inner wall of the pump well is small. At this time, the sliders and rollers evenly distributed around the circumference of the pump body can fit with the inner wall of the pump well, preventing the pump body from rubbing against the inner wall of the pump well. Moreover, the sliders and rollers are distributed at different heights and staggered in the vertical direction, which can further reduce the probability of rubbing between the outer surface of the pump body and the inner wall of the pump well, thereby preventing the pump body from getting stuck during installation or disassembly;

[0026] 2. The automatic closing and opening of the bottom end of the pump well is achieved through a foot valve. The foot valve is installed at the bottom end of the pump well. The pump body can be placed into the pump well, can match with the foot valve, and presses on the foot valve by its own gravity. When the foot valve is under pressure, it opens, and then liquid pumping can be carried out, without the need for separate control by an operator, and the efficiency is higher during emergency use. Brief Description of the Drawings

[0027] Figure 1 Isometric schematic diagram mainly showing the overall structure of the present application;

[0028] Figure 2 Schematic diagram mainly showing the internal structure of the pump body of the present application;

[0029] Figure 3 Schematic diagram mainly showing the upper end structure of the pump body of the present application;

[0030] Figure 4 For the present application Figure 2 Enlarged structure schematic diagram at position A in

[0031] Figure 5 For the present application Figure 2 Enlarged structure schematic diagram at position B in

[0032] Figure 6 Schematic diagram mainly showing the structure of the foot valve of the present application;

[0033] Figure 7 For the present application Figure 2 Enlarged structure schematic diagram at position C in

[0034] Figure 8 Schematic diagram mainly showing the structure above the upper cover of the present application;

[0035] Figure 9 Schematic diagram mainly showing the structure of the disc and the arc-shaped groove of the present application;

[0036] Reference Signs: 1, pump well; 2, pump body; 21, motor housing; 22, end cover; 23, intermediate section; 24, suction section; 25, rotor component; 26, impeller; 27, transition plate; 28, inducer; 29, upper cover; 210, mounting hole; 211, stop bolt; 212, slide bar; 213, sliding sleeve; 214, cross bar; 3, foot valve; 31, outer housing; 32, inner edge; 33, guide rod; 34, lifting ring; 35, support spring; 36, valve core wall; 37, upper housing; 38, lower housing; 39, partition; 310, outer edge; 311, light hole; 312, threaded hole; 313, positioning screw; 4, first fixing block; 41, connecting seat; 42, roller; 43, needle roller; 44, rotating rod; 45, disc; 46, torsion spring; 47, arc-shaped groove; 5, second fixing block; 51, slider; 6, lifting ring; 7, junction box. Detailed implementation manners

[0037] The following further elaborates on this application in conjunction with the attached Figures 1-9 drawings for a more detailed description.

[0038] An embodiment of this application discloses an emergency liquid drainage device for a ship's cabin shaft.

[0039] Embodiment 1

[0040] Referring to Figure 1 、 2 and 3, an emergency liquid drainage device for a ship's cabin shaft includes a pump body 2 and a bottom valve 3 connected to the bottom of a pump well 1. The pump body 2 includes a motor housing 21. An end cover 22 is provided at the upper end of the motor housing 21. An upper cover 29 is fixed to the upper end of the end cover 22. A connection hole is provided at the middle position of the upper end face of the upper cover 29, and a lifting ring 6 for installing and disassembling the pump body 2 is connected in the connection hole. A junction box 7 is provided on the end cover 22. A middle section 23 is provided at the lower end of the motor housing 21. A transition plate 27 is connected to the lower end of the middle section 23. An intake section 24 is connected to the lower end of the transition plate 27. A rotor component 25 is rotatably arranged inside the motor housing 21. The upper end of the rotor component 25 is rotatably connected to the end cover 22, and the lower end is rotatably connected to the lower end of the motor housing 21. The rotating shaft of the rotor component 25 penetrates through the middle section 23 and the intake section 24. An impeller 26 and an inducer 28 are provided on the rotating shaft of the rotor component 25, and the impeller 26 is located inside the middle section 23, and the inducer 28 is located inside the intake section 24.

[0041] When the pump body 2 is working, the rotor component 25 rotates and drives the impeller 26 and the inducer 28 to rotate through the rotating shaft at its center, so as to pump the liquid. The inducer 28 can be of a type with high suction effect. The inducer 28 with high suction performance has a better effect of sucking the liquid at the bottom of the cargo hold, can minimize the remaining liquid volume in the cargo hold, and improve the pumping effect of the pump body 2. Moreover, the outer shell of the pump body 2 is composed of multiple sections, which is more convenient for manufacturing and assembly, and is easy to repair. When installing and disassembling the pump body 2, a hoisting device is required to lower and lift the pump body 2. At this time, the hook can be connected to the lifting ring 6, which is more convenient to use. Moreover, the lifting ring 6 is located on the central axis of the pump body 2, which can further ensure that the pump body 2 remains vertical during the ascending and descending processes and reduce the friction with the inner wall of the pump well 1.

[0042] Reference Figure 6 and 7, the foot valve 3 includes a housing 31, the housing 31 is fixed to the bottom end of the pump well 1, the lower end of the housing 31 is provided with an inwardly protruding inner edge 32, several circumferentially distributed guide rods 33 are fixed on the inner edge 32, and a lifting ring 34 is slidably arranged on the guide rods 33. Several sliding holes are formed in the lifting ring 34, the guide rods 33 penetrate through the sliding holes, a support spring 35 is sleeved on the guide rods 33, and both ends of the support spring 35 abut against the lifting ring 34 and the inner edge 32 respectively for supporting the lifting ring 34. The lower end of the lifting ring 34 is connected with a valve core wall 36. An upper housing 37 is arranged inside the valve core wall 36, a lower housing 38 is arranged below the upper housing 37, and several partition plates 39 are connected between the upper housing 37 and the lower housing 38. An outlet is arranged at the upper end of the upper housing 37, which corresponds to the suction section 24 of the pump body 2 after the pump body 2 is installed. An outer edge 310 is arranged on the outer circumferential side of the lower housing 38, and the outer edge 310 is located directly below the inner edge 32. A sealing ring is arranged below the inner edge 32. When the outer edge 310 abuts against the inner edge 32, sealing can be achieved.

[0043] When the pump body 2 is not installed, the support spring 35 props up the lifting ring 34, and components such as the lifting ring 34, the upper housing 37, and the lower housing 38 are all at a relatively high position. At this time, the outer edge 310 abuts against the inner edge 32, and with the sealing effect of the sealing ring, the sealing effect is achieved to prevent the leakage of volatile liquid cargo. When installing the pump body 2, the suction section 24 of the pump body 2 will abut against the outlet, and press down the upper housing 37, causing the lower housing 38 to descend. At this time, the outer edge 310 is separated from the inner edge 32, and the liquid can pass through the channel between the upper housing 37 and the lower housing 38, flow through the outlet, enter the suction section 24 and be squeezed by the impeller 26 to achieve the pumping effect. When the pump body 2 is installed, it can automatically open the foot valve 3 without the need for separate control by the operator, and the efficiency is higher during emergency use.

[0044] Several threaded holes 312 are formed in the side end of the housing 31, and the several threaded holes 312 are circumferentially distributed. A light hole 311 is formed at the bottom of the threaded hole 312. A positioning screw 313 is threadedly connected in the threaded hole 312, and the positioning screw 313 passes through the light hole 311, and its end extends to the inside of the housing 31. Both ends of the positioning screw 313 are welded and fixed to the inner and outer surfaces of the housing 31. An installation hole 210 is formed below the transition plate 27, and a stop bolt 211 is arranged in the installation hole 210. After the pump body 2 is installed, the stop bolt 211 at the bottom of the pump body 2 and the positioning screw 313 are at the same height. When the pump body 2 is powered on and started, it will be driven by its own rotor component 25 to rotate. After rotating a certain angle, one of the stop bolts 211 will abut against the positioning screw 313, which can limit the rotation of the pump body 2 relative to the pump well 1 and the foot valve 3, and improve the operation stability of the pump body 2 and the effect of pumping liquid.

[0045] Reference Figure 4 and 5, a plurality of first fixing blocks 4 evenly distributed in a circumferential manner on the upper surface of the end cover 22 are fixed on the upper surface of the end cover 22. A connecting seat 41 is arranged on the outer side of the first fixing block 4. A needle roller 43 is inserted on the connecting seat 41. Split pins for preventing falling off are arranged at both ends of the needle roller 43. A roller 42 is rotatably arranged on the needle roller 43. The outer side of the roller 42 can roll along the side wall of the pump well 1 when the pump body 2 descends. A fixing platform is arranged on the outer side of the middle section 23. A plurality of second fixing blocks 5 are fixed on the fixing platform. The outer sides of the plurality of second fixing blocks 5 are evenly distributed on the circumferential side of the middle section 23 at equal intervals. A slider 51 is arranged on the outer side of the second fixing block 5. The outer side surface of the slider 51 is a curved surface, which can further reduce the contact area with the inner wall of the pump well 1 and reduce the friction force. The slider 51 and the roller 42 are staggered in the vertical direction.

[0046] During the process of placing the pump body 2, the clearance between the pump body 2 and the inner wall of the pump well 1 is small. At this time, the sliders 51 and the rollers 42 evenly distributed in a circumferential manner on the outer side of the pump body 2 can fit with the inner wall of the pump well 1 to prevent the pump body 2 from rubbing against the inner wall of the pump well 1. Moreover, the sliders 51 and the rollers 42 are distributed at different heights and are staggered in the vertical direction, which can further reduce the probability of rubbing between the outer surface of the pump body 2 and the inner wall of the pump well 1, thereby preventing the pump body 2 from being stuck during the installation or disassembly process. Moreover, the roller 42 is rotatably connected to the connecting seat 41 through the needle roller 43, and the split pin at the end of the needle roller 43 is easy to disassemble, and the roller 42 can be replaced more conveniently, replacing the aging roller 42.

[0047] The implementation principle of an emergency liquid drainage device for a ship's cabin shaft in an embodiment of the present application is as follows: The bottom valve 3 is installed at the bottom of the pump well 1. When the pump body 2 is not installed, the support spring 35 props up the lifting ring 34, and components such as the lifting ring 34, the upper housing 37, and the lower housing 38 are all in a relatively high position. At this time, the outer edge 310 abuts against the inner edge 32. With the sealing effect of the sealing ring, the sealing effect is achieved to prevent the leakage of volatile liquid cargo. When installing the pump body 2, the suction section 24 of the pump body 2 will abut against the liquid outlet and press down the upper housing 37, causing the lower housing 38 to descend. At this time, the outer edge 310 is separated from the inner edge 32, and the liquid can pass through the channel between the upper housing 37 and the lower housing 38, flow through the liquid outlet, enter the suction section 24 and be squeezed by the impeller 26 to achieve the pumping effect. When the pump body 2 is installed, it can automatically open the bottom valve 3 without the need for separate control by the operator, and the efficiency is higher during emergency use. In addition, during the installation process of the pump body 2, the gap between the pump body 2 and the inner wall of the pump well 1 is small. At this time, the sliders 51 and rollers 42 evenly distributed circumferentially on the outside of the pump body 2 can fit with the inner wall of the pump well 1 to prevent the pump body 2 from rubbing against the inner wall of the pump well 1. Moreover, the sliders 51 and rollers 42 are distributed at different heights and staggered in the vertical direction, which can further reduce the probability of rubbing between the outer surface of the pump body 2 and the inside of the pump well 1, thereby preventing the pump body 2 from getting stuck during installation or disassembly. Moreover, the roller 42 is rotatably connected to the connecting seat 41 through a needle roller 43, and the end opening pin of the needle roller 43 is easy to disassemble, and it is relatively convenient to replace the roller 42 to replace the aging roller 42.

[0048] Embodiment 2

[0049] Refer to Figure 8 and 9 In this embodiment, the difference from Embodiment 1 is that a rotating hole is opened in the middle of the first fixing block 4, a rotating rod 44 is rotatably arranged in the rotating hole, and the connecting seat 41 is fixed to the end of the rotating rod 44. A disc 45 is fixed to the end of the rotating rod 44 away from the connecting seat 41, and a torsion spring 46 is arranged on the rotating rod 44. The two ends of the torsion spring 46 are respectively fixed to the connecting seat 41 and the first fixing block 4. A sliding rod 212 is connected to the upper end of the upper cover 29, and a sliding sleeve 213 is arranged on the outside of the sliding rod 212. A lifting ring 6 is fixed to the upper end of the sliding sleeve 213, and a cross bar 214 is arranged on the side end of the sliding sleeve 213. An arc-shaped groove 47 is opened on the side of the disc 45 away from the connecting seat 41, and the cross bar 214 is inserted into the arc-shaped groove 47. When the cross bar 214 rises, it can drive the disc 45 to rotate 90° through the arc-shaped groove 47.

[0050] After the pump body 2 is installed, under the action of the torsion spring 46, the rotating rod 44 is at a specific angle. At this time, the roller 42 can roll at the horizontal height of the pump well 1, which is suitable for the deflection when the pump body 2 starts. During the lifting and lowering of the pump body 2, the lifting ring 6 is subjected to the pulling force of the hoisting device. Under the action of the gravity of the pump body 2 itself, the sliding sleeve 213 and the sliding rod 212 are stretched. At this time, the sliding sleeve 213 moves upward relative to the sliding rod 212. At this time, the cross bar 214 moves upward relative to the disc 45. The end of the cross bar 214 is inserted into the arc-shaped groove 47, which will drive the disc 45 to rotate 90°. At this time, the roller 42 can roll in the vertical direction of the pump well 1, ensuring that the roller 42 is always in a rolling state with the inner wall of the pump well 1, reducing the wear of the roller 42, and improving the smoothness of the installation and use of the pump body 2.

[0051] The implementation principle of Embodiment 2 is as follows: When the pump body 2 is lifted or lowered, the sliding sleeve 213 and the sliding rod 212 are stretched. At this time, the cross bar 214 moves upward relative to the disc 45. Under the action of the arc-shaped groove 47, the disc 45, the rotating rod 44 and the roller 42 are driven to rotate 90°, so that the roller 42 is changed to a vertical state and can roll up and down along the inner wall of the pump well 1. After the pump body 2 is installed, the lifting ring 6 is stressed, and under the action of the torsion spring 46, the roller 42 is reset to a horizontal state and can roll horizontally along the inner wall of the pump well 1, thereby reducing the wear of the roller 42.

[0052] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. An emergency drainage device for a cabin shaft, characterized in that: The invention comprises a pump body (2) and a bottom valve (3) connected to the bottom of a pump well (1), wherein the pump body (2) comprises a motor housing (21), an end cover (22) is arranged at the upper end of the motor housing (21), and an intermediate section (23) is arranged at the lower end of the motor housing (21), a plurality of first fixing blocks (4) are fixed on the upper surface of the end cover (22), and the plurality of first fixing blocks (4) are distributed at equal intervals on the peripheral side of the end cover (22), a connecting seat (41) is arranged on the outer side of the first fixing block (4), and a roller (42) is arranged on the connecting seat (41). ), and the outer side of the roller (42) can roll along the side wall of the pump well (1) when the pump body (2) descends, a fixed platform is arranged on the outer side of the middle section (23), a plurality of second fixed blocks (5) are fixed on the fixed platform, and the outer sides of the plurality of second fixed blocks (5) are distributed at equal intervals around the middle section (23), a slider (51) is arranged on the outer side of the second fixed block (5), and the outer side of the slider (51) can slide along the side wall of the pump well (1) when the pump body (2) descends, and the slider (51) and the roller (42) are staggered in the vertical direction.

2. An emergency drainage device for a ship cabin shaft according to claim 1, characterized in that: The lower end of the middle section (23) is connected to a transition plate (27), and the lower end of the transition plate (27) is connected to a suction section (24). A rotor component (25) is rotatably arranged inside the motor housing (21), and the upper end of the rotor component (25) is rotatably connected to the end cover (22), and the lower end is rotatably connected to the lower end of the motor housing (21). The rotating shaft of the rotor component (25) passes through the middle section (23) and the suction section (24). An impeller (26) is arranged on the rotating shaft of the rotor component (25), and the impeller (26) is located inside the middle section (23).

3. An emergency drainage device for a ship cabin shaft according to claim 2, characterized in that: An inducer (28) is connected to the end of the rotating shaft of the rotor component (25), and the inducer (28) is located inside the suction section (24).

4. The emergency drainage device for a ship cabin shaft according to claim 1, characterized in that: An upper cover (29) is fixed to the upper end of the end cover (22), a connection hole is provided in the middle of the upper end surface of the upper cover (29), and a lifting ring (6) for installing and removing the pump body (2) is connected to the connection hole, and a junction box (7) is provided on the end cover (22).

5. The emergency drainage device for a ship cabin shaft according to claim 1, characterized in that: The bottom valve (3) comprises an outer shell (31) fixed to the bottom end of the pump well (1), an inner edge (32) is arranged at the lower end of the outer shell (31), a plurality of guide rods (33) evenly distributed around the circumference are fixed on the inner edge (32), a lifting ring (34) is slidably arranged on the guide rod (33), a support spring (35) is sleeved on the guide rod (33), and two ends of the support spring (35) respectively abut against the lifting ring (34) and the inner edge (32), a valve core wall (36) is connected to the lower end of the lifting ring (34), an upper shell (37) is arranged on the inner side of the valve core wall (36), a lower shell (38) is arranged below the upper shell (37), and a plurality of partitions (39) are connected between the upper shell (37) and the lower shell (38), and an outer edge (310) is arranged on the circumferential side of the lower shell (38), and the outer edge (310) is located directly below the inner edge (32).

6. An emergency drainage device for a ship cabin shaft according to claim 5, characterized in that: The side end of the outer shell (31) is provided with a threaded hole (312) and a light hole (311) which are interconnected. A positioning screw (313) is threadedly connected in the threaded hole (312), and the positioning screw (313) passes through the light hole (311). The two ends of the positioning screw (313) are respectively welded and fixed to the inner and outer surfaces of the outer shell (31). A mounting hole (210) is provided below the transition plate (27), and a stop bolt (211) is arranged in the mounting hole (210).

7. The emergency drainage device for a ship cabin shaft according to claim 1, characterized in that: A roller needle (43) is inserted into the connection seat (41), and cotter pins for preventing falling off are arranged at both ends of the roller needle (43). The roller (42) is rotatably arranged on the roller needle (43), and the outer side surface of the slider (51) is a curved surface.

8. The emergency drainage device for a ship cabin shaft according to claim 4, characterized in that: A rotating hole is provided in the middle of the first fixed block (4), a rotating rod (44) is rotatably arranged in the rotating hole, and the connecting seat (41) is fixed to the end of the rotating rod (44), a disc (45) is fixed to the end of the rotating rod (44) away from the connecting seat (41), and a torsion spring (46) is arranged on the rotating rod (44), and the two ends of the torsion spring (46) are respectively fixed to the connecting seat (41) and the first fixed block (4).

9. An emergency drainage device for a ship cabin shaft according to claim 8, characterized in that: The upper end of the upper cover (29) is connected to a slide rod (212), and a slide sleeve (213) is arranged on the outer side of the slide rod (212); the lifting ring (6) is fixed to the upper end of the slide sleeve (213), and a cross bar (214) is arranged on the side end of the slide sleeve (213); an arc groove (47) is provided on the side of the disc (45) away from the connecting seat (41), and the cross bar (214) is inserted into the arc groove (47); the cross bar (214) rises and can drive the disc (45) to rotate 90 degrees through the arc groove (47).

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