Stern propeller monitoring alarm device

Abstract

The utility model discloses a stern propeller monitoring alarm device which is characterized in that a front sealing element and a rear sealing element are respectively arranged at the tail and the head of a power cabin, a monitoring module which is annularly arranged along a main transmission shaft is arranged in the power cabin, the monitoring module is arranged close to the front sealing element, and an image capturing module and a flow velocity detection module are further arranged in the power cabin. An alarm module is arranged in the function cabin and electrically connected with the monitoring module, the image capturing module and the flow velocity detection module at the same time. According to the utility model, the leakage of the front sealing element possibly caused by accidents is monitored in advance through the monitoring module, the monitoring module can be instantaneously triggered by a large amount of inrush seawater once the leakage occurs, and the triggering is more scientific and accurate through the buzzing of the alarm module and the structural improvement of the triggering part; the annularly arranged monitoring modules are triggered in different regions, so that the leakage position can be quickly known; a flow velocity detection module is additionally arranged to monitor slight leakage; and an influence capture module is additionally arranged, so that the leakage condition is more accurately and intuitively prevented or known.

Description

Technical Field

[0001] This utility model relates to the field of marine equipment technology, and more specifically, to a stern propeller monitoring and alarm device. Background Technology

[0002] The stern propeller uses the rotation of its blades in the water to convert the engine's power into propulsion. The entire power structure includes the propeller itself, the hull mounting area, the main drive shaft, the engine, the front seal, the rear seal, fixtures, and related hydraulic and gas lines. The electric motor output is connected to the main drive shaft via a reversing joint. The main drive shaft has a dedicated power compartment at the stern, which is separated from the main functional compartments of the hull. The rear end of the power compartment has a front seal to isolate it from seawater; the front end of the power compartment, where it contacts the main functional compartments, has a rear seal to isolate it from the internal compartments. The entire structure allows only the main drive shaft to pass through, and the entry point is sealed. The reversing joint on the main drive shaft can also be easily adapted to the hull's transmission system layout.

[0003] However, the stern propeller was only sealed, without any dedicated monitoring or alarm systems. If a leak occurs, not only will it be difficult to respond in a timely manner, but it will also be difficult to understand the specific cause and extent of the leak. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a stern propeller monitoring and alarm device to solve one or more of the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A stern propeller monitoring and alarm device includes a propeller located at the stern of the hull. The propeller is connected to a main drive shaft located inside the hull. The main drive shaft passes sequentially through the power compartment and the functional compartment of the hull. The stern and bow of the power compartment are respectively provided with a front seal and a rear seal. A monitoring module is arranged around the main drive shaft in the power compartment. The monitoring module is located close to the front seal. The power compartment also provides an image capture module and a flow velocity detection module. An alarm module is provided in the functional compartment. The alarm module is electrically connected to the monitoring module, the image capture module, and the flow velocity detection module.

[0007] Furthermore, the monitoring module includes an offset mounting base disposed on the inner wall of the engine compartment, on which an irregularly shaped lever is hinged. The irregularly shaped lever is connected to the inner wall of the engine compartment via an elastic element, which fixes the initial posture of the irregularly shaped lever and compresses or stretches it as the irregularly shaped lever rotates.

[0008] Furthermore, a pressure-sensitive paddle is provided on the inner wall of the power compartment. The pressure-sensitive paddle is fixed to the inner wall of the power compartment by an end seat. The pressure-sensitive paddle is equipped with a working chip, which is electrically connected to the alarm module.

[0009] Furthermore, the pressure-sensitive paddle is located at one end of the inner side of the irregular paddle, and the inner side end of the irregular paddle is provided with a contact point. The irregular paddle rotates inward and drives the contact point to contact and squeeze the pressure-sensitive paddle.

[0010] Furthermore, the outer end face of the irregularly shaped paddle is a concave arc-shaped surface, and the inner end face of the irregularly shaped paddle is a wavy surface with a wave crest section at the end.

[0011] Furthermore, the touch-sensitive paddle is an overall symmetrical ellipsoidal structure.

[0012] In summary, this utility model has the following beneficial effects: The monitoring module can monitor potential leaks in the front seal due to accidents in advance; once a large amount of seawater rushes in, the monitoring module will be triggered instantly, and an alarm module will sound. The triggering component has been structurally improved, making the triggering more scientific and accurate; the surrounding monitoring module triggers in different areas, allowing for quick identification of the leak location; an additional flow velocity detection module is added to monitor minor leaks; and an additional impact detection module is added to more accurately and intuitively prevent or understand leak situations. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of one embodiment of the present utility model;

[0014] Figure 2 This is a cross-sectional view of the internal structure of one embodiment of the present invention;

[0015] Figure 3 This is a partial enlarged view of the monitoring module in one embodiment of the present invention.

[0016] In the diagram: 1. Propeller; 2. Main drive shaft; 3. Front seal; 4. Rear seal; 5. Monitoring module; 6. Image capture module; 7. Flow velocity detection module; 8. Offset mounting base; 9. Irregularly shaped lever; 10. Touch-sensitive lever. Detailed Implementation

[0017] Example:

[0018] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below.

[0019] Stern propeller monitoring and alarm device, such as Figure 1As shown, the propeller 1 is located in the area at the stern of the hull. A dedicated power compartment is located on the hull, connected to the outside and docking with the propeller 1. The power compartment is also connected to the other functional compartments inside the hull. Figure 2 As shown, a front seal 3 is located at the stern of the power compartment, where the hull meets the propeller 1. A rear seal 4 is located at the bow of the power compartment, where the power compartment and the functional compartment meet. The main drive shaft 2 on the propeller 1 passes sequentially through the power compartment and the functional compartment of the hull. The front seal 3 and the rear seal 4 seal the passage of the main drive shaft 2 using existing processes. The first design isolates the interior of the hull from the outside, and the second design separates the power compartment from the functional compartment. A reversing joint is located at the other end of the main drive shaft 2.

[0020] like Figure 2 As shown, the monitoring module 5, the image capture module, and the flow velocity detection module 7 are sequentially installed on the inner wall of the engine room from the outside in. All three modules are located on the inner wall of the engine room. The image capture module 6 corresponds to the front seal 3 and the rear seal 4, or is located at the monitoring module 5. The flow velocity detection module 7 is optimally located in the central section of the engine room. An alarm module is installed in the functional compartment or hull. All three modules in the engine room are linked to the alarm module; upon departure, different beeping sounds are emitted as a warning.

[0021] like Figure 3As shown, the monitoring module 5 includes several main components such as a deflection mounting base 8, a special-shaped dial 9, an elastic member, a touch-pressure sensing dial 10, an end seat, and a working chip. The special-shaped dial 9 is hinged inside the power cabin through the deflection mounting base 8 and can swing in the inner and outer directions. An elastic member is installed between the root of the special-shaped dial 9 and the inner wall of the power cabin to maintain the attitude of the special-shaped dial 9 through the elastic member, generally keeping the neutral line thereof vertical. The special-shaped dial 9 can rotate and compress or stretch the elastic member, and this compression amount or stretching amount can ensure that the special-shaped dial 9 does not rotate randomly and the entire monitoring module 5 is not easily triggered. The touch-pressure sensing dial 10 is arranged at the inner end of the special-shaped dial 9 and is within the rotation range of the special-shaped dial 9. The touch-pressure sensing dial 10 is fixed to the inner wall of the power cabin through the end seat. The outer end face of the special-shaped dial 9 is a concave arc surface, which is convenient for the aggregation of force and the manifestation of the change in emphasis, that is, the sensitivity of abnormal monitoring. The inner end face of the special-shaped dial 9 is a wavy surface and the end is a wave crest section, and a number of corresponding contacts are arranged on the wave crest section at the end for buffering the instantaneous contact between the subsequent special-shaped dial 9 and the touch-pressure sensing dial 10. The touch-pressure sensing dial 10 is an overall symmetric ellipsoidal structure, which is convenient for the contact of the contacts. The special-shaped dial 9 is directly or slowly impacted by the seawater that may leak, thereby rotating, the contacts contact and squeeze the touch-pressure sensing dial 10, forming a trigger signal, and then reacting and processing through the working chip matching with the touch-pressure sensing dial 10, and transmitting it to the alarm, completing the transformation from monitoring to alarming. The image capture module 6 is a supplement to the monitoring, and the flow velocity detection module 7 is an additional coping means for special situations.

[0022] It should be noted that this specific embodiment is only an explanation of the present invention and does not limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions according to needs, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A stern propeller monitoring and alarming device, comprising a propeller (1) arranged at the stern of a ship body, the propeller (1) being connected with a main transmission shaft (2) arranged inside the ship body, the main transmission shaft (2) sequentially penetrating through a power cabin and a function cabin of the ship body, the power cabin being respectively provided with a front sealing member (3) and a rear sealing member (4) at the stern and the head thereof, characterized in that: The power cabin is provided with a monitoring module (5) arranged along the main transmission shaft (2), the monitoring module (5) is arranged close to the front sealing element (3), the power cabin is further provided with an image capture module (6) and a flow rate detection module (7), the function cabin is provided with an alarm module, the alarm module is electrically connected with the monitoring module (5), the image capture module (6) and the flow rate detection module (7).

2. A stern propeller monitoring alarm device according to claim 1, characterised in that: The monitoring module (5) comprises a bias mounting seat (8) arranged on the inner wall of the power cabin, a special-shaped toggle (9) is hinged to the bias mounting seat (8), the special-shaped toggle (9) is connected to the inner wall of the power cabin through an elastic element, the elastic element fixes the initial posture of the special-shaped toggle (9) and compresses or stretches with the rotation of the special-shaped toggle (9).

3. A stern propeller monitoring alarm device according to claim 2, characterised in that: The inner wall of the power cabin is further provided with a touch pressure sensing toggle (10), the touch pressure sensing toggle (10) is fixed on the inner wall of the power cabin through an end seat, the touch pressure sensing toggle (10) is provided with a working chip, and the working chip is electrically connected to the alarm module.

4. A stern propeller monitoring alarm device according to claim 3, characterised in that: The touch pressure sensing toggle (10) is located at one end of the inner side of the special-shaped toggle (9), the inner side of the special-shaped toggle (9) is provided with a contact point, the special-shaped toggle (9) rotates inward and drives the contact point to contact and press the touch pressure sensing toggle (10).

5. The stern propeller monitoring alarm device according to claim 2, characterized by: The outer end surface of the special-shaped toggle (9) is a concave arc surface, the inner end surface of the special-shaped toggle (9) is a wave surface and the end is a wave crest section.

6. The stern propeller monitoring alarm device according to claim 3, characterized by: The touch pressure sensing toggle (10) is a whole symmetrical ellipsoid structure.

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