Action locking mechanism of bow thrusting sealing cover

Abstract

An action locking mechanism of a bow thruster sealing cover relates to the technical field of bow thrusters and comprises a fixing ring, an adjusting shaft is mounted on the upper portion in the fixing ring and connected with the fixing ring through a bearing, a sealing plate is mounted outside the adjusting shaft, and the sealing plate is connected with the adjusting shaft through a bearing. The circle center of the fixing ring is located on the path that the circle point of the sealing plate revolves with the axis of the adjusting shaft as the original point, an adjusting mechanism is arranged above the rear end of the fixing ring and fixedly welded to the fixing ring, a worm wheel is rotationally installed in the adjusting mechanism, and a center shaft of the worm wheel is fixed to the adjusting shaft. A worm is arranged above the worm gear, the worm gear is matched with threads outside the worm, a driving device is installed on one side of the interior of the adjusting mechanism, and the problems that after an action locking mechanism seals the bow thruster, the leakproofness between the action locking mechanism and the bow thruster is poor, and the adjusting stability is poor are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bow side push technology fields, concretely is a kind of action locking mechanism of bow side push cover. BACKGROUND

[0002] Bow side push is a kind of propelling device installed in the bow of ship. It is mainly used to improve the maneuverability and maneuverability of ship, especially when sailing at low speed, berthing or sailing in narrow water area, bow side push cover is a kind of device installed outside the bow side propeller (i.e. bow side push) of ship, mainly used to cover and protect the passage or cylinder of bow side push, bow side push cover can block marine organisms, ice, silt and other sundries into the passage or cylinder inside bow side push, so as to protect the propeller from being damaged, when ship sails normally, bow side push cover can keep closed state, reduce water flow into the passage inside bow side push, so as to reduce the resistance of ship and improve sailing efficiency, the action locking mechanism of bow side push cover is a kind of device for ensuring that bow side push cover keeps stable in opening or closing state.

[0003] For example, the Chinese authorized patent "a locking device of ship side push cover" with announcement number CN204210695U includes: stopper A, stopper B, side push cover leaf, pivot, locking connector, locking pin and the base for installing hydraulic swing cylinder and locking cylinder; hydraulic swing cylinder is fixedly connected with the pivot; when side push cover leaf is in closed or opened in place state, corresponding locking hole on locking connector and locking pin are in opposite position, under the action of locking cylinder, locking pin extends into corresponding locking hole on locking connector, to realize locking.

[0004] Although the above-mentioned prior art can realize the adjustment of bow side push cover, but after closing the bow side push, the airtightness between the two is poor, water flow and impurities are easy to penetrate into the inside of bow side push, and the stability after adjustment is poor, therefore it does not meet the existing demand, for this we propose a kind of action locking mechanism of bow side push cover. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of action locking mechanism of bow side push cover, to solve the problem that the airtightness between the two is poor and the adjustment stability is poor after the action locking mechanism of bow side push cover is closed in the above background art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a bow thrust seal cover action locking mechanism, including fixed ring, the top of the inside of fixed ring is installed with adjusting shaft, and adjusting shaft is connected with fixed ring through bearing, the outside of adjusting shaft is installed with seal plate, and the center of fixed ring is located on the path of revolution of the center of adjusting shaft as the origin, the top of the rear end of fixed ring is provided with adjusting mechanism, and adjusting mechanism is welded with fixed ring, the inside of adjusting mechanism is rotatably installed with worm wheel, and the center axis of worm wheel is fixed with adjusting shaft, the top of worm wheel is provided with worm, and the thread of the outside of worm wheel is matched with the thread of the outside of worm, one side of the inside of adjusting mechanism is installed with driving device.

[0007] Preferably, the driving device comprises a speed reducer motor, and the housing of the speed reducer motor is fixed with the adjusting mechanism, the output shaft of the speed reducer motor is provided with a driving bevel gear, one end of the worm is fixedly provided with a driven bevel gear, and the driven bevel gear is connected with the driving bevel gear.

[0008] Preferably, the inside of the side wall of the fixed ring is provided with a first pressure sensor, the top of the side wall of the fixed ring is provided with a second pressure sensor, the output ends of the first pressure sensor and the second pressure sensor are connected to a single-chip microcomputer, and the output end of the single-chip microcomputer is connected to the speed reducer motor.

[0009] Preferably, the outside of the seal plate is provided with a groove, the inside of the groove is slidably provided with an elastic plate, the elastic plate and the seal plate are provided with annularly distributed reset springs, and the outer edge of the elastic plate is provided with an inclined surface.

[0010] Preferably, the rear end of the fixed ring is provided with four annularly equidistantly distributed piston mechanisms, and the movable ends of the piston mechanisms extend into the inside of the fixed ring.

[0011] Preferably, the outer ring of the fixed ring is provided with a plurality of annularly distributed bolt holes, and is fixed with the bow thrust through bolts.

[0012] Preferably, the center position of the fixed ring is provided with a through hole.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The utility model discloses a sealing plate adjusting locking mechanism, need to close the sealing plate of bow side push, start the reduction motor, its output shaft drives driving bevel gear rotation, under the meshing of driven bevel gear, drive worm rotation, the contact surface between worm and worm wheel forms a helical friction transmission surface, drive worm wheel rotation through the rotation of worm, and then drive the rotation of adjusting shaft through worm wheel, to drive the sealing plate to rotate with the axle of adjusting shaft as the origin, until completely enter the inside of fixed ring, subsequently, the telescopic rod of piston mechanism extends, produces pressure to the back of sealing plate, to make it closely combine with fixed ring, improve the sealing effect after the closure of sealing plate, because the helical rise angle of worm is less than the friction angle, when worm wheel is under the action of reverse torque, can produce self locking effect, namely worm wheel cannot be driven reversely, once the sealing plate rotates to completely enter the inside of fixed ring under the drive of worm wheel, even if there is the force that opens the sealing plate outside, the self locking of worm wheel worm can ensure that the sealing plate keeps in the closed state and is not opened easily.

[0015] 2. The utility model discloses a first pressure sensor and second pressure sensor are installed respectively on the inboard and upper end of fixed ring side wall, its signal output end is connected to singlechip, and the rotation direction of reduction motor is controlled through singlechip, when the sealing plate contacts first pressure sensor in the adjusting process, the sensor will send a signal to singlechip, show that the sealing plate has reached the preset open position, on the contrary, when the sealing plate continues to move and contacts second pressure sensor, another signal will be sent to singlechip, indicate that the sealing plate has reached the closed position, based on these judgments, singlechip can intelligently control the rotation direction of reduction motor, to drive the sealing plate to open or close operation, because the system can monitor the position of sealing plate in real time, and stop motor rotation when reaching the preset position, this effectively avoids the situation that the sealing plate is over or not in position due to improper operation or system failure, thereby enhancing the safety of the whole system.

[0016] 3. The utility model discloses an elastic plate is arranged in the sealing plate, because the recess structure exists between fixed ring and sealing plate after the sealing plate enters fixed ring and closes bow side push, this recess structure can destroy the flatness of the ship side, thereby affecting the sailing efficiency, in the closing process of sealing plate, the inclined surface of elastic plate will produce contact with fixed ring, and horizontal force is converted into vertical force under the action of pressure, make elastic plate enter the recess of sealing plate, when the sealing plate reaches the closed position, fixed ring loses the support to elastic plate, under the action of reset spring, make sealing plate pop out from the recess, fill the recess between fixed ring and sealing plate, ensure that the bow side push keeps the flat structure on the ship side. ACCURACY OF DRAWINGS

[0017] Figure 1 It is the front perspective drawing of the utility model;

[0018] Figure 2The back perspective view of the utility model;

[0019] Figure 3 The opened back perspective view of the utility model;

[0020] Figure 4 The fixed ring perspective view of the utility model;

[0021] Figure 5 The sealing plate adjusting mechanism schematic view of the utility model;

[0022] Figure 6 The fixed ring internal structure schematic view of the utility model;

[0023] Figure 7 The sealing plate and elastic plate connecting structure schematic view of the utility model.

[0024] In the figure: 1, fixed ring;2, sealing plate;3, elastic plate;4, bolt hole;5, adjusting mechanism;6, piston mechanism;7, through hole;8, adjusting shaft;9, worm wheel;10, worm;11, speed reducer motor;12, driving bevel gear;13, driven bevel gear;14, first pressure sensor;15, second pressure sensor;16, recess;17, return spring;18, inclined plane. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0026] Please refer to Figures 1-7 The utility model provides an embodiment: a bow thrust cover action locking mechanism, including fixed ring 1, the top of fixed ring 1 inside is equipped with adjusting shaft 8, and adjusting shaft 8 is connected with fixed ring 1 through bearing, the outside of adjusting shaft 8 is equipped with sealing plate 2, and the center of fixed ring 1 is located on the path of revolution of sealing plate 2 dot with the axis of adjusting shaft 8 as the origin, the top of the rear end of fixed ring 1 is provided with adjusting mechanism 5, and adjusting mechanism 5 is welded with fixed ring 1, the inside of adjusting mechanism 5 is rotatably installed with worm wheel 9, and the center shaft of worm wheel 9 is fixed with adjusting shaft 8, the top of worm wheel 9 is provided with worm 10, and the thread outside worm wheel 9 and worm 10 is adapted, one side in adjusting mechanism 5 is equipped with driving arrangement, the outer ring of fixed ring 1 is equipped with a plurality of annular distribution bolt hole 4, is fixed with the bow thrust through bolt;

[0027] The contact surface between the worm 10 and the worm wheel 9 forms a helical friction transmission surface, the rotation of the worm 10 drives the rotation of the worm wheel, and in turn drives the adjustment shaft 8 to rotate, thereby driving the sealing plate 2 to rotate around the axis of the adjustment shaft 8 as the origin, until it is completely inside the fixed ring 1. Since the helix angle of the worm 10 is smaller than the friction angle, the worm wheel 9 will produce a self-locking effect when subjected to a reverse torque, i.e. the worm wheel 9 cannot be driven in reverse. Once the sealing plate 2 is rotated to completely enter the inside of the fixed ring 1 under the drive of the worm wheel 9, even if there is a force outside to open the sealing plate 2, the self-locking nature of the worm wheel 9 and the worm 10 can ensure that the sealing plate 2 remains in a closed state and cannot be easily opened.

[0028] Please refer to Figure 5 The drive device comprises a reduction motor 11, and the housing of the reduction motor 11 is fixed with the adjustment mechanism 5. The output shaft of the reduction motor 11 is provided with a driving bevel gear 12, and one end of the worm 10 is fixedly provided with a driven bevel gear 13 which is meshingly connected with the driving bevel gear 12. By turning on the reduction motor 11, the output shaft drives the driving bevel gear 12 to rotate, which in turn drives the worm 10 to rotate through the meshing of the driven bevel gear 13, forming a driving force transmission.

[0029] Please refer to Figure 6 The inner side of the side wall of the fixed ring 1 is provided with a first pressure sensor 14, and the upper side of the side wall of the fixed ring 1 is provided with a second pressure sensor 15. The output ends of the first pressure sensor 14 and the second pressure sensor 15 are connected to a single-chip microcomputer, and the output end of the single-chip microcomputer is connected to the reduction motor 11. When the sealing plate 2 contacts the first pressure sensor 14 during adjustment, the sensor sends a signal to the single-chip microcomputer, indicating that the sealing plate 2 has reached the preset opening position. Conversely, when the sealing plate 2 moves and contacts the second pressure sensor 15, another signal is sent to the single-chip microcomputer, indicating that the sealing plate 2 has reached the closed position. Based on these judgments, the single-chip microcomputer can intelligently control the rotation direction of the reduction motor 11, thereby driving the sealing plate 2 to open or close. Since the system can monitor the position of the sealing plate 2 in real time and automatically stop the rotation of the motor when the preset position is reached.

[0030] Please refer to Figure 2 and Figure 7, the outer side of the sealing plate 2 is provided with a groove 16, the inner side of the groove 16 is slidably provided with an elastic plate 3, the elastic plate 3 and the sealing plate 2 are provided with annularly distributed reset springs 17, the outer edge of the elastic plate 3 is provided with an inclined surface 18, after the bow thruster is closed by the sealing plate 2 entering the fixed ring 1, there is a recess structure between the fixed ring 1 and the sealing plate 2, the recess structure will damage the flatness of the ship side, thereby affecting the sailing efficiency, during the closing process of the sealing plate 2, the inclined surface 18 of the elastic plate 3 will be in contact with the fixed ring 1, and the horizontal force is converted into vertical force under the action of pressure, so that the elastic plate 3 enters the groove 16 of the sealing plate 2, when the sealing plate 2 reaches the closed position, the fixed ring 1 loses the support of the elastic plate 3, under the action of the reset spring 17, the sealing plate is ejected from the groove 16, and the recess between the fixed ring 1 and the sealing plate 2 is filled, so that the bow thruster keeps the flat structure of the ship side.

[0031] Please refer to Figure 2 and Figure 4 The rear end of the fixed ring 1 is provided with four annularly distributed piston mechanisms 6, and the movable end of the piston mechanism 6 extends to the inside of the fixed ring 1, the telescopic rod of the piston mechanism 6 extends, and the back of the sealing plate 2 is pressed, so that the sealing plate 2 is closely combined with the fixed ring 1, and the sealing effect after the sealing plate 2 is closed is improved.

[0032] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and not limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A locking mechanism for a bow-side push-to-close cover, comprising a retaining ring (1), characterized in that: An adjusting shaft (8) is installed above the inside of the fixed ring (1), and the adjusting shaft (8) is connected to the fixed ring (1) by a bearing. A sealing plate (2) is installed outside the adjusting shaft (8), and the center of the fixed ring (1) is located on the path of the sealing plate (2) revolving around the axis of the adjusting shaft (8). An adjusting mechanism (5) is provided above the rear end of the fixed ring (1), and the adjusting mechanism (5) is welded and fixed to the fixed ring (1). A worm gear (9) is rotatably installed inside the adjusting mechanism (5), and the central axis of the worm gear (9) is fixed to the adjusting shaft (8). A worm (10) is provided above the worm gear (9), and the worm gear (9) is adapted to the external thread of the worm (10). A driving device is installed on one side inside the adjusting mechanism (5).

2. The action locking mechanism for the bow-side push-to-close cover according to claim 1, characterized in that: The drive device includes a geared motor (11), and the housing of the geared motor (11) is fixed to the adjustment mechanism (5). The output shaft of the geared motor (11) is equipped with a driving bevel gear (12), and a driven bevel gear (13) is fixedly provided at one end of the worm (10), and the driven bevel gear (13) meshes with the driving bevel gear (12).

3. The action locking mechanism for the bow-side push-to-close cover according to claim 2, characterized in that: A first pressure sensor (14) is installed on the inner side of the side wall of the fixed ring (1), and a second pressure sensor (15) is installed on the upper side of the side wall of the fixed ring (1). The output terminals of the first pressure sensor (14) and the second pressure sensor (15) are both connected to a microcontroller, and the output terminal of the microcontroller is connected to a geared motor (11).

4. The action locking mechanism for the bow-side push-to-close cover according to claim 1, characterized in that: The outer side of the sealing plate (2) is provided with a groove (16), and an elastic plate (3) is slidably installed inside the groove (16). A ring-shaped reset spring (17) is provided between the elastic plate (3) and the sealing plate (2), and an inclined surface (18) is provided on the outer edge of the elastic plate (3).

5. The action locking mechanism for the bow-side push-to-close cover according to claim 1, characterized in that: The rear end of the fixed ring (1) is provided with four annularly distributed piston mechanisms (6), and the movable end of the piston mechanism (6) extends into the interior of the fixed ring (1).

6. The action locking mechanism for the bow-side push-lock cover according to claim 1, characterized in that: The outer ring of the fixing ring (1) is provided with a plurality of annularly distributed bolt holes (4), which are fixed to the bow side by bolts.

7. The action locking mechanism for the bow-side push-lock cover according to claim 1, characterized in that: A through hole (7) is provided at the center of the fixing ring (1).

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