Marine manhole sealing protection device

Abstract

The invention relates to the technical field of ship manhole sealing, and discloses a marine manhole sealing protection device, a manhole cover plate base is mounted above a manhole, and a cover plate support is arranged at the bottom of the base. A shell is arranged on the base, and a driving mechanism is arranged in the shell. The mechanism comprises a lower plate, a vertical plate, an upper plate, a hydraulic motor, a belt wheel I, a belt wheel II, a screw rod, a nut seat, a connecting seat, a clamping sleeve, a lifting sleeve, a fixed pipe seat, a sliding sleeve and a pressing rod. The hydraulic motor drives the first belt wheel, the second belt wheel is driven by the belt to rotate, the second belt wheel drives the screw to rotate, the nut seat moves along the screw, the linkage seat and the clamping sleeve move along with the screw, the lifting sleeve slides in the fixed pipe seat, and the pressing rod ascends and descends to control the manhole cover plate. The driving mechanism achieves accurate control over the screw through a hydraulic motor and a belt transmission system, and then the lifting sleeve and the pressing rod are driven to do lifting motion in the vertical direction. The tedious process of traditional manual operation is simplified, and the sealing efficiency and reliability are remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of ship manhole sealing, in particular to a ship manhole sealing and protection device. Background Art

[0002] In the existing ship design and manufacturing, manholes, as an indispensable part of the hull structure, not only carry the convenience function of inspection and maintenance, but are also directly related to the overall sealing and safety of the ship.

[0003] However, traditional methods of sealing manholes for ships mainly rely on manual operation, which is not only time-consuming and labor-intensive, but also has low sealing reliability. In addition, these methods also have problems such as unstable sealing effect, complex structure, difficult maintenance and high fragility, all of which may pose potential risks to the long-term safe navigation of ships.

[0004] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop a marine manhole sealing and protection device. Summary of the invention

[0005] The object of the present invention is to provide a marine manhole sealing and protection device to solve the common problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a marine manhole sealing and protection device, comprising a manhole cover base installed above the manhole, a cover bracket installed at the bottom of the manhole cover base, a shell arranged on the manhole cover base, a driving mechanism installed in the shell, the driving mechanism comprising a lower plate, a vertical plate arranged at the edge of the top surface of the lower plate, an upper plate arranged on the top of the vertical plate, a hydraulic motor arranged on the bottom surface of the upper plate, a pulley 1 connected to the output end of the hydraulic motor, the pulley 1 is located on the top surface of the upper plate, a pulley 2 is arranged on the adjacent side of the pulley 1, and the pulley 2 A rotating seat is installed at the bottom and is rotatably connected with the rotating seat. The pulley one and the pulley two are connected by belt transmission. A screw is installed in the shaft hole of the pulley two, and the tail end of the screw is connected to a bearing seat. The external thread of the screw is connected to a nut seat, and a connecting seat is installed outside the nut seat. A jacket is installed on the connecting seat, and a lifting sleeve is passed through the jacket. A fixed pipe seat is arranged outside the lifting sleeve, and the fixed pipe seat is slidably connected to the lifting sleeve and fixedly installed on the lower plate. A sliding sleeve is installed at the bottom end of the lifting sleeve, and a pressure rod is installed at the bottom end of the sliding sleeve, and the tail end of the pressure rod is connected to a manhole cover.

[0007] As a preferred technical solution, the outer wall of the sliding sleeve is provided with a guide notch, the sliding sleeve is rotatably connected to the lifting sleeve, and the sliding sleeve is fixedly connected to the pressure rod.

[0008] As a preferred technical solution, a sealing ring is provided on the upper outer wall of the manhole cover, and a plurality of sealing strips are provided below the sealing ring, and the plurality of sealing strips are distributed in a circular shape at equal intervals.

[0009] As a preferred technical solution, a plurality of groups of reinforcing ribs are arranged between the vertical plate and the lower plate, the lower plate is fixedly connected to the manhole cover base, and the vertical plate and the upper plate are assembled and connected to the outer shell by bolts.

[0010] As a preferred technical solution, a motor seat is provided on the lower plate, a servo motor is installed on the motor seat, gear one is connected to the output end of the servo motor, gear two is mounted on the outer sleeve of the adjacent side of gear one, a protrusion is provided in the shaft hole of gear two, and the protrusion is slidably matched with the guide groove, and gear one is meshingly connected with gear two.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The present invention is a manhole sealing and protection device for ships. The driving mechanism realizes precise control of the screw through a hydraulic motor and a belt transmission system, thereby driving the lifting sleeve and the pressure rod to perform vertical lifting movements. It not only simplifies the cumbersome process of traditional manual operation, but also significantly improves the efficiency and reliability of sealing. In the daily maintenance and overhaul of ships, it is convenient to open and close the manhole cover, greatly saving time and labor costs.

[0013] In addition, the present invention adopts multiple seals. A highly elastic sealing ring is arranged on the upper outer wall of the manhole cover, and a number of sealing strips are evenly spaced below the sealing ring, which effectively prevents the infiltration of external media such as water, oil, and gas, and ensures the dryness and safety of the internal environment of the ship. At the same time, the circumferential layout of the sealing strips also enhances the sealing uniformity of the device, avoiding leakage problems caused by uneven local pressure.

[0014] In addition, the present invention utilizes a servo motor and a gear transmission as an auxiliary power system. Through the meshing of gear 1 and gear 2, the pressure rod and the manhole cover are driven to rotate, and the lifting and sealing are realized at the same time, thereby further ensuring the sealing and safety of the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure diagram of a marine manhole sealing and protection device is shown in FIG.

[0016] Figure 2 It is a schematic diagram of the structure of a driving mechanism in a marine manhole sealing and protection device;

[0017] Figure 3 It is a schematic diagram of the structure of a marine manhole sealing and protection device from the back perspective;

[0018] Figure 4 It is a schematic diagram of the structure of a manhole sealing and protection device for a ship from a side view;

[0019] Figure 5 The present invention is a schematic diagram of the three-dimensional structure of a marine manhole sealing and protection device.

[0020] In the accompanying drawings: 11, manhole cover base; 12, cover bracket; 2, shell; 21, lower plate; 22, vertical plate; 221, reinforcing rib plate; 23, upper plate; 24, hydraulic motor; 25, pulley one; 26, pulley two; 27, rotating seat; 28, belt; 29, screw; 30, bearing seat; 31, nut seat; 4, coupling seat; 41, jacket; 42, lifting sleeve; 43, fixed pipe seat; 44, sliding sleeve; 441, guide groove; 45, pressure rod; 5, manhole cover; 51, sealing strip; 52, sealing ring; 61, motor seat; 62, servo motor; 63, gear one; 64, gear two. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Example

[0024] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the present invention provides a technical solution for a manhole sealing protection device for a ship: comprising a manhole cover base 11 installed above the manhole, a cover bracket 12 installed at the bottom of the manhole cover base 11, a shell 2 arranged on the manhole cover base 11, a driving mechanism installed in the shell 2, the driving mechanism comprising a lower plate 21, a vertical plate 22 arranged at the edge of the top surface of the lower plate 21, an upper plate 23 arranged on the top of the vertical plate 22, a hydraulic motor 24 installed on the bottom surface of the upper plate 23, a pulley 25 connected to the output end of the hydraulic motor 24, the pulley 25 is located on the top surface of the upper plate 23, a pulley 26 is arranged on the adjacent side of the pulley 25, and a rotating seat 27 is installed at the bottom of the pulley 26. The pulley 25 is connected with the pulley 26 through a belt 28. A screw 29 is installed in the shaft hole of the pulley 26. The tail end of the screw 29 is connected with a bearing seat 30. The screw 29 is externally threaded with a nut seat 31. A coupling seat 4 is installed outside the nut seat 31. A jacket 41 is installed on the coupling seat 4. A lifting sleeve 42 is inserted in the jacket 41. A fixed pipe seat 43 is arranged outside the lifting sleeve 42. The fixed pipe seat 43 is slidably connected with the lifting sleeve 42 and is fixedly installed on the lower plate 21. A sliding sleeve 44 is installed at the bottom end of the lifting sleeve 42. A pressure rod 45 is installed at the bottom end of the sliding sleeve 44. The tail end of the pressure rod 45 is connected with a manhole cover plate 5.

[0025] In this embodiment, by starting the hydraulic motor 24, its powerful torque is efficiently transmitted to the pulley 2 26 through the transmission of the pulley 1 25 and the belt 28. This transmission process not only ensures the smooth transmission of power, but also effectively reduces vibration and noise through the elastic buffering effect of the belt 28. As the pulley 26 rotates, the screw 29 inside it also starts to rotate synchronously, and the nut seat 31 tightly engaged with the external thread of the screw 29 moves axially accordingly.

[0026] The movement of the nut seat 31 drives the entire joint seat 4 and its attached parts to move up and down. The lifting sleeve 42 in the jacket 41 moves vertically precisely under the guidance of the fixed pipe seat 43. This design not only ensures the stability of the lifting process, but also reduces friction through the sliding connection, thereby extending the service life of the equipment.

[0027] As the lifting sleeve 42 descends, the sliding sleeve 44 and the pressure rod 45 at the bottom thereof also extend downward until the pressure rod 45 and the manhole cover 5 move downward. The continuous operation of the hydraulic motor 24 will be converted into a strong thrust on the manhole cover 5, realizing its stable and accurate opening or closing action.

[0028] Specifically, by adjusting the output power and speed of the hydraulic motor 24, the opening or closing speed of the manhole cover 5 can be flexibly controlled to meet the needs of different occasions. At the same time, safety protection devices such as overload protection and limit switches can be added to the key parts of the driving mechanism to ensure that the equipment can be shut down in time under abnormal conditions to avoid accidents.

[0029] See also Figure 1-5 As shown, a guide notch 441 is provided on the outer wall of the sliding sleeve 44 , the sliding sleeve 44 is rotatably connected to the lifting sleeve 42 , and the sliding sleeve 44 is fixedly connected to the pressure rod 45 .

[0030] In this embodiment, the sliding sleeve 44 is rotated to rotate on the lifting sleeve 42. Since the sliding sleeve 44 is fixedly connected to the pressing rod 45, this rotation action will directly drive the pressing rod 45 to rotate synchronously.

[0031] See also Figure 1-5 As shown, a sealing ring 52 is provided on the upper outer wall of the manhole cover plate 5, and a plurality of sealing strips 51 are provided below the sealing ring 52. The plurality of sealing strips 51 are distributed at equal intervals in a circular shape.

[0032] In this embodiment, the sealing strips 51 below the sealing ring 52 are evenly spaced in a circumferential shape, which not only enhances the overall sealing effect, but also provides additional support and compensation when the sealing ring 52 is subjected to uneven pressure, thereby ensuring the stability of the sealing performance. When the manhole cover 5 is completely closed, the sealing strip 51 is evenly compressed, and as the manhole cover 5 is further pressed downward, the sealing ring 52 is squeezed and deformed, and fits more closely to the edge of the installation port, effectively preventing the penetration of external liquid or gas, further filling any possible tiny gaps, and achieving an extremely high sealing level.

[0033] In addition, in order to maintain the long-term effectiveness of the sealing performance, the sealing ring 52 and the sealing strip 51 are made of wear-resistant and corrosion-resistant materials, which can maintain their good sealing performance for a long time in harsh working environments. At the same time, these sealing elements also have good resilience and can quickly return to the initial sealing state during the frequent opening and closing of the manhole cover 5.

[0034] See also Figure 1-5 As shown, a plurality of reinforcing ribs 221 are arranged between the vertical plate 22 and the lower plate 21, the lower plate 21 is fixedly connected to the manhole cover base 11, and the vertical plate 22 and the upper plate 23 are assembled and connected to the outer shell 2 by bolts.

[0035] In this embodiment, the reinforcing rib plate 221 not only enhances the connection strength between the vertical plate 22 and the lower plate 21, but also significantly improves the stability and load-bearing capacity of the entire structure, and effectively prevents deformation or damage caused by local stress concentration.

[0036] See also Figure 1-3 As shown, a motor seat 61 is provided on the lower plate 21, a servo motor 62 is installed on the motor seat 61, a gear 1 63 is connected to the output end of the servo motor 62, a gear 2 64 is sleeved on the outer sleeve 44 on the adjacent side of the gear 1 63, a protrusion is provided in the shaft hole of the gear 2 64, and the protrusion is slidably matched with the guide groove 441, the gear 1 63 is meshed and connected with the gear 2 64, and specifically, the gear 2 64 is rotationally connected to the lower plate 21.

[0037] In this embodiment, when the servo motor 62 is started, its output end drives the gear 1 63 to rotate. Since there is a meshing relationship between the gear 1 63 and the gear 2 64, the rotation of the gear 1 63 will drive the gear 2 64 to rotate synchronously. The gear 2 64 is not only driven by the gear 1 63, but also slides with the guide notch 441 of the sliding sleeve 44 through the protrusion in its shaft hole, so as to achieve stable guidance of the gear 2 64 during the rotation process, and avoid shaking or deviation caused by rotation.

[0038] The working principle and use process of the present invention are as follows: the servo motor 62 is started, and the output end thereof drives the gear 1 63 to start rotating. Due to the meshing relationship between the gear 1 63 and the gear 2 64, the gear 2 64 will rotate synchronously therewith, and the protrusion in its shaft hole and the guide notch 441 of the sliding sleeve 44 maintain stable sliding cooperation, thus ensuring the stability during the rotation process.

[0039] As the gear 2 64 rotates, the sleeve 44 will also start to rotate. Due to the fixed connection between the sleeve 44 and the pressure rod 45, this rotation will directly drive the pressure rod 45 to rotate synchronously, driving the pressure rod 45 and the manhole cover 5 to rotate, so as to facilitate the subsequent lifting and sealing.

[0040] Start the hydraulic motor 24. The powerful torque generated by the hydraulic motor 24 is efficiently transmitted to the pulley 2 26 through the pulley 1 25 and the belt 28. The elastic buffering effect of the belt 28 reduces vibration and noise, making the power transmission more stable. The rotation of the pulley 26 drives the screw 29 to rotate, and the nut seat 31 tightly engaged with the external thread of the screw 29 moves axially.

[0041] The movement of the nut seat 31 drives the entire joint seat 4 and its accessories to rise and fall. Under the guidance of the fixed pipe seat 43, the lifting sleeve 42 in the jacket 41 performs precise vertical movement. As the lifting sleeve 42 descends, the sliding sleeve 44 and the pressure rod 45 at its bottom also move downward until the pressure rod 45 contacts the manhole cover 5 and applies a downward thrust, driving it to open or close stably and accurately, realizing a rotary lifting seal. By adjusting the output power and speed of the hydraulic motor 24, the opening or closing speed of the manhole cover 5 can be flexibly controlled to meet the needs of different occasions.

[0042] When the manhole cover 5 is completely closed, the sealing ring 52 on the upper outer wall and the sealing strip 51 below work together to ensure extremely high sealing performance. The sealing strips 51 are evenly spaced in a circumference, which not only enhances the sealing effect, but also provides additional support and compensation when the sealing ring 52 is subjected to uneven pressure. When the manhole cover 5 is further pressed down, the sealing ring 52 is squeezed and deformed, and fits more closely to the edge of the installation port, effectively preventing the penetration of external liquid or gas.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0044] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A marine manhole sealing and protection device, It is characterized in that The invention comprises a manhole cover base (11) installed above the manhole, a cover bracket (12) being installed at the bottom of the manhole cover base (11), a shell (2) being arranged on the manhole cover base (11), a driving mechanism being installed in the shell (2), the driving mechanism comprising a lower plate (21), a vertical plate (22) being arranged at the edge of the top surface of the lower plate (21), an upper plate (23) being arranged on the top of the vertical plate (22), a hydraulic motor (24) being arranged on the bottom surface of the upper plate (23), a pulley 1 (25) being connected to the output end of the hydraulic motor (24), the pulley 1 (25) being located on the top surface of the upper plate (23), a pulley 2 (26) being arranged on the adjacent side of the pulley 1 (25), a rotating seat (27) being arranged at the bottom of the pulley 2 (26) and being rotatably connected to the rotating seat (27), the pulley 1 The first and second pulleys (25) are connected to the second pulley (26) through a belt (28) transmission. A screw rod (29) is installed in the shaft hole of the second pulley (26). The tail end of the screw rod (29) is connected to a bearing seat (30). The screw rod (29) is externally threadedly connected to a nut seat (31). A coupling seat (4) is installed outside the nut seat (31). A jacket (41) is installed on the coupling seat (4). A lifting sleeve (42) is inserted inside the jacket (41). A fixed pipe seat (43) is arranged outside the lifting sleeve (42). The fixed pipe seat (43) is slidably connected to the lifting sleeve (42) and is fixedly installed on the lower plate (21). A sliding sleeve (44) is installed at the bottom end of the lifting sleeve (42). A pressure rod (45) is installed at the bottom end of the sliding sleeve (44). The tail end of the pressure rod (45) is connected to a manhole cover plate (5).

2. A marine manhole sealing and protection device according to claim 1, Features: The outer wall of the sliding sleeve (44) is provided with a guide notch (441); the sliding sleeve (44) is rotatably connected to the lifting sleeve (42); and the sliding sleeve (44) is fixedly connected to the pressure rod (45).

3. A marine manhole sealing and protection device according to claim 1, Features: A sealing ring (52) is arranged on the upper outer wall of the manhole cover plate (5), and a plurality of sealing strips (51) are arranged below the sealing ring (52), wherein the plurality of sealing strips (51) are distributed at equal intervals in a circumferential shape.

4. A ship manhole sealing and protection device according to claim 1, Features: A plurality of groups of reinforcing ribs (221) are arranged between the vertical plate (22) and the lower plate (21); the lower plate (21) is fixedly connected to the manhole cover base (11); and the vertical plate (22) and the upper plate (23) are assembled and connected to the outer shell (2) by bolts.

5. A ship manhole sealing and protection device according to claim 2, Features: A motor seat (61) is provided on the lower plate (21), a servo motor (62) is mounted on the motor seat (61), an output end of the servo motor (62) is connected to a gear 1 (63), a sliding sleeve (44) on one side adjacent to the gear 1 (63) is provided with a gear 2 (64) on the outside, a cam is provided in the shaft hole of the gear 2 (64), and the cam is slidably matched with the guide slot (441), and the gear 1 (63) is meshingly connected with the gear 2 (64).

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