Hull keel deflection monitoring device

Abstract

The invention relates to the technical field of hull keel deflection monitoring, and discloses a hull keel deflection monitoring device. The hull keel deflection monitoring device comprises a base, an adjusting assembly and a detecting assembly. The base is connected to a slipway; the adjusting assembly comprises a sleeve, a connecting rod, a mounting plate, a gradienter and a ruler, the connecting rod is in threaded connection with the sleeve, the bottom of the sleeve is fixedly connected to the base, the bottom of the mounting plate is connected to the top of the sleeve, the gradienter is connected to the top of the mounting plate, the bottom of the ruler is connected to the top of the connecting rod, and the ruler is provided with scales arranged in the extending direction of the ruler; the detection assembly comprises an adsorption block and a pointer, the adsorption block is used for being detachably connected to a hull keel, the pointer is fixedly connected to the adsorption block, and the pointer and the ruler are coaxially arranged; the base is adjusted to the level of the gradienter, the connecting rod is rotated until the bottom of the ruler is flush with a mark post set value of the ship body, and the indicating value pointed to the ruler by the end, away from the adsorption block, of the pointer is read.

Description

Technical Field

[0001] The present invention relates to the technical field of ship keel deflection monitoring, in particular to a ship keel deflection monitoring device. Background Art

[0002] At present, the measurement of hull keel deflection is a key link in monitoring the hull linear accuracy during ship construction. The measurement methods include laser theodolite measurement method, horizontal tube method and simple benchmark method.

[0003] The laser theodolite measurement method uses optical instruments to measure the distance between the laser point and the target point to obtain deflection data, but its measurement process is easily affected by obstruction of the slipway tooling and the equipment cost is high; the horizontal tube method relies on multiple manual measurements and horizontal tube calibration, which is cumbersome to operate and has low accuracy; the simple benchmark method uses preset benchmark marks for rough measurement. Although it is simple to operate, the accuracy is seriously insufficient and it is only suitable for preliminary construction monitoring.

[0004] These methods face three core defects in practical applications: First, they have poor environmental adaptability. The laser theodolite is easily disturbed by the complex environment of the slipway, and the horizontal tube method is significantly affected by vibration and temperature. Second, the measurement efficiency is low. Most methods rely on manual operation or fixed equipment, which cannot meet the needs of rapid construction in modern shipbuilding. Third, it is difficult to balance accuracy and cost. High-precision measurement methods are too expensive and difficult to implement, and low-cost methods cannot meet the engineering accuracy requirements. Existing technologies cannot take into account measurement accuracy, operational efficiency and economic benefits at the same time. Summary of the Invention

[0005] The technical problems to be solved by the present invention are: good environmental adaptability, low dependence on manual operation, low cost and high measurement accuracy.

[0006] In order to solve the above technical problems, the present invention provides a hull keel deflection monitoring device including a base, an adjustment component and a detection component;

[0007] The base is used to connect to the slipway;

[0008] The adjustment assembly includes a sleeve, a connecting rod, a mounting plate, a spirit level and a ruler. The connecting rod is threadedly connected to the sleeve, the bottom of the sleeve is fixedly connected to the base, the bottom of the mounting plate is connected to the top of the sleeve, the spirit level is connected to the top of the mounting plate, the bottom of the ruler is connected to the top of the connecting rod, and the ruler is provided with a scale arranged along its own extension direction;

[0009] The detection component includes an adsorption block and a pointer, wherein the adsorption block is detachably connected to the keel of the hull, and the pointer is fixedly connected to the adsorption block, and the pointer is coaxially arranged with the ruler;

[0010] Adjust the base to the level of the spirit level, turn the connecting rod until the bottom of the ruler is flush with the benchmark setting value of the hull, and read the value indicated on the ruler with the end of the pointer away from the adsorption block.

[0011] Preferably, the adjustment assembly further includes a handle block, the bottom of the ruler is connected to the top of the connecting rod through the handle block, the bottom of the handle block is fixedly connected to the top of the connecting rod, and the bottom of the ruler is fixedly connected to the top of the handle block.

[0012] Preferably, the handle block is a triangular prism, and the handle block is used to facilitate the wrench to rotate the connecting rod.

[0013] Preferably, the mounting plate is provided with gripping grooves running through both sides thereof.

[0014] Preferably, the adjustment assembly further comprises a fixing member, which is threadedly connected to the connecting rod, and a side of the fixing member close to the sleeve abuts against the mounting plate.

[0015] Preferably, the adsorption block is a magnet.

[0016] Preferably, the detection component further comprises a lifting eye screw, which is threadedly connected to the adsorption block.

[0017] Preferably, the pointer includes a mounting portion and a pointing portion fixedly connected to each other, the mounting portion and the pointing portion are perpendicular to each other, and the mounting portion is pressed between the eye screw thread and the adsorption block to connect the pointer and the adsorption piece.

[0018] Preferably, the base is provided with a plurality of circumferentially arranged mounting holes, the base is connected to the slipway by bolts, and the base can be arranged horizontally with the slipway.

[0019] Compared with the prior art, the hull keel deflection monitoring device according to the embodiment of the present invention has the following advantages:

[0020] (1) Fix the base to the surface of the slipway to ensure that the device and the plane of the keel of the hull are relatively stable; adjust the height of the device by adjusting the threaded connection structure between the connecting rod and the sleeve; use the spirit level on the top of the mounting plate to level the device to ensure that the mounting plate is in a horizontal state to provide a reference for subsequent measurements; adjust the connecting rod so that the bottom end of the ruler connected to its top is aligned with the preset benchmark value of the hull; this process sets the zero point of the deflection measurement as the initial reference benchmark to facilitate subsequent comparison of deflection changes; firmly adsorb the adsorption block in the detection component to the target measurement position of the keel of the hull; the adsorption block The connected pointer extends in the vertical direction and is coaxial with the ruler. When the deflection of the keel changes due to force, temperature changes or other construction factors, the surface position of the keel will shift. Since the pointer is fixed on the adsorption block, when the keel shifts vertically, the pointer moves accordingly. The user can observe the scale on the ruler pointed by the end of the pointer away from the adsorption block to obtain the current deflection change value. The device has a simple structure, is easy to install and disassemble, and can be reused for multiple measuring points. During the measurement process, the pointer position can be read multiple times according to the construction progress, realizing dynamic monitoring and recording of the keel deformation trend.

[0021] (2) The calibration operation ensures that the initial measurement value is zero. The traditional laser theodolite measurement method is easily affected by the obstruction of the slipway structure, resulting in measurement interruption or error. However, this embodiment adopts a physical contact pointer and ruler reading mechanism, as well as a direct connection between the adsorption block and the keel, so that the device can work stably under complex working conditions without relying on the visible laser path, which significantly improves the adaptability to the on-site environment.

[0022] (3) This device uses a spirit level in the adjustment assembly for rapid leveling, and the connecting rod is height-adjustable via a threaded mechanism. Installation and calibration can be completed by a single operator. Furthermore, the pointer and ruler provide intuitive and rapid readings, eliminating the need for electronic processing or optical calculations. This significantly improves measurement efficiency and meets the demands of modern shipbuilding, which requires rapid construction.

[0023] (4) The device relies on a stable physical structure and fine adjustment to achieve millimeter-level measurement accuracy. At the same time, the manufacturing and maintenance costs of the device are much lower than those of laser instruments. It not only avoids the high cost of high-precision solutions, but also overcomes the defects of low-cost solutions in terms of insufficient accuracy, and has great engineering promotion value.

[0024] (5) By placing the level on top of the mounting plate, the device is kept horizontal. The coaxial arrangement of the pointer and ruler ensures data reading consistency, significantly reducing measurement deviations caused by parallax, uneven ground, or vibrations on the slipway. Furthermore, the pointer structure design allows the reading to be maintained over a long period of time, facilitating repeated testing and long-term data comparison, making it suitable for phased construction monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a partially enlarged view from the first viewing angle of an embodiment of the present invention;

[0026] Figure 2 This is a partial enlarged view of the second viewing angle of the embodiment of the present invention;

[0027] Figure 3 Schematic diagram of an embodiment of the present invention.

[0028] In the figure, 1, base; 11, mounting hole;

[0029] 2. Adjustment assembly; 21. Sleeve; 22. Connecting rod; 23. Mounting plate; 24. Level; 25. Ruler; 26. Handle block; 27. Grip groove; 28. Fixing piece;

[0030] 3. Detection component; 31. Adsorption block; 32. Pointer; 321. Mounting part; 322. Pointing part; 33. Eye screw. DETAILED DESCRIPTION

[0031] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood broadly. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] like Figures 1 to 3 As shown, a hull keel deflection monitoring device according to a preferred embodiment of the present invention includes a base 1, an adjustment component 2 and a detection component 3;

[0035] The base 1 is used for connecting to the slipway;

[0036] The adjustment assembly 2 includes a sleeve 21, a connecting rod 22, a mounting plate 23, a spirit level 24, and a ruler 25. The connecting rod 22 is threadedly connected to the sleeve 21. The bottom of the sleeve 21 is fixedly connected to the base 1. The bottom of the mounting plate 23 is connected to the top of the sleeve 21. The spirit level 24 is connected to the top of the mounting plate 23. The bottom of the ruler 25 is connected to the top of the connecting rod 22. The ruler 25 is provided with a scale arranged along its own extension direction.

[0037] The detection component 3 includes an adsorption block 31 and a pointer 32. The adsorption block 31 is used to be detachably connected to the keel of the hull. The pointer 32 is fixedly connected to the adsorption block 31. The pointer 32 is coaxially arranged with the ruler 25.

[0038] Adjust the base 1 until the spirit level 24 is level, rotate the connecting rod 22 until the bottom of the ruler 25 is flush with the benchmark setting value of the hull, and read the value indicated on the ruler 25 by the end of the pointer 32 away from the adsorption block 31.

[0039] The working process of this embodiment is as follows: the base 1 is fixedly connected to the surface of the slipway to ensure that the device and the plane of the keel of the hull are relatively stable; the height of the device is adjusted by adjusting the threaded connection structure between the connecting rod 22 and the sleeve 21; the device is leveled with the help of the spirit level 24 on the top of the mounting plate 23 to ensure that the mounting plate 23 is in a horizontal state, providing a reference for subsequent measurements; the connecting rod 22 is adjusted so that the bottom end of the ruler 25 connected to the top is aligned with the preset benchmark setting value of the hull; this process sets the zero point of the deflection measurement as the initial reference benchmark, which is convenient for subsequent comparison of deflection changes; the adsorption block 31 in the detection component 3 is firmly adsorbed to the target measurement position of the keel of the hull; The pointer 32 connected to the adsorption block 31 extends in the vertical direction and is coaxial with the ruler 25. When the deflection of the keel of the hull changes due to force, temperature changes or other construction factors, the surface position of the keel will shift. Since the pointer 32 is fixed on the adsorption block 31, when the keel shifts vertically, the pointer 32 moves accordingly. The user can observe the scale on the ruler 25 pointed by the end of the pointer 32 away from the adsorption block 31 to obtain the current deflection change value. The device has a simple structure, is easy to install and disassemble, and can be reused for multiple measuring points. During the measurement process, the position of the pointer 32 can be read multiple times according to the construction progress to realize dynamic monitoring and recording of the keel deformation trend.

[0040] Based on the above scheme, the calibration operation ensures that the initial measurement value is zero. Traditional laser theodolite measurement methods are susceptible to obstruction by slipway structures, resulting in measurement interruptions or errors. However, this embodiment utilizes a physical contact reading mechanism using a pointer 32 and ruler 25, as well as a direct connection between the adsorption block 31 and the keel. This enables the device to operate stably under complex working conditions, independent of a visible laser path, significantly improving its adaptability to field environments. This device utilizes a level 24 in the adjustment assembly 2 for rapid leveling, and a threaded mechanism for height adjustment on the connecting rod 22. Installation and calibration can be completed by a single operator. Furthermore, the pointer 32 and ruler 25 provide intuitive and rapid readings, eliminating the need for electronic processing or optical calculations. This significantly improves measurement efficiency and meets the demands of the rapid pace of modern shipbuilding. This device, with its stable physical structure and fine adjustment, achieves millimeter-level measurement accuracy. Furthermore, its manufacturing and maintenance costs are far lower than those of laser instruments, avoiding the high costs of high-precision solutions while overcoming the lack of accuracy associated with low-cost solutions. This device is highly valuable for engineering deployment. By placing the level gauge 24 atop the mounting plate 23, the device maintains a horizontal baseline. The coaxial placement of the pointer 32 and ruler 25 ensures consistent readings, significantly reducing measurement deviations caused by parallax, uneven surfaces, or vibrations from the platform. Furthermore, the design of the pointer 32 ensures long-term retention of readings, facilitating repeated testing and long-term data comparison, making it suitable for periodic construction monitoring.

[0041] Furthermore, the adjustment assembly 2 also includes a handle block 26, the bottom of the ruler 25 is connected to the top of the connecting rod 22 through the handle block 26, the bottom of the handle block 26 is fixedly connected to the top of the connecting rod 22, and the bottom of the ruler 25 is fixedly connected to the top of the handle block 26. If the ruler 25 is directly connected to the connecting rod 22, the force-bearing area is small, and it is easy to shake or loosen, affecting the measurement accuracy. After the handle block 26 is introduced, it serves as a transition block between the connecting rod 22 and the ruler 25. It has a larger contact area and a more secure fixing method, which effectively improves the rigidity and vibration resistance of the overall structure, thereby improving the stability of the ruler 25 during measurement and the reliability of reading. Compared with directly twisting the top of the connecting rod 22, the introduction of the handle block 26 can significantly improve the convenience and safety of on-site operations, and is particularly suitable for scenarios where measuring points are frequently changed or multiple points are repeatedly operated.

[0042] Furthermore, the handle block 26 is a triangular prism, and the handle block 26 is used to facilitate the wrench to rotate the connecting rod 22. The triangular prism shape has geometric features with clear plane edges and obvious angles, which makes it particularly suitable for use in conjunction with standard mechanical tools such as open-end wrenches, adjustable wrenches, etc. for rotation operations. Compared with cylindrical or irregularly shaped connection parts, the triangular prism structure can effectively prevent the tool from slipping, improve the operating accuracy and force transmission efficiency, thereby speeding up the installation, leveling and adjustment speed of the device. The hull construction site environment is complex, the space is limited, and there are unfavorable factors such as wetness, oil pollution, etc. The triangular prism-shaped handle block 26 has a clear gripping boundary and anti-slip performance. Even when using tools to assist, it is easy to grasp and rotate with bare hands, improving the construction experience of maintenance personnel and the fault tolerance of on-site operations.

[0043] Furthermore, the mounting plate 23 is provided with gripping grooves 27 running through both sides thereof. The mounting plate 23 serves as the upper structure of the device and requires frequent manual touch during adjustment, installation or removal. By providing gripping grooves 27 on both sides thereof, a natural and stable gripping position is provided for the operator. Especially when wearing gloves or when the operating space is limited, the gripping grooves 27 can significantly improve the efficiency of handling and positioning, and avoid the device from falling or misoperation due to unstable grip. The gripping grooves 27 serve as a dedicated hand channel, preventing the operator from directly contacting the slippery or oily edges of the device, helping to reduce the risks of hand slipping, pinching, etc. during on-site operations, and improving the safety and control of the device during use.

[0044] Furthermore, the adjustment assembly 2 includes a fixing member 28, which is threadedly connected to the connecting rod 22. The side of the fixing member 28 closest to the sleeve 21 abuts the mounting plate 23. After adjustment is completed, if the fixing member 28 is not effectively locked, the connecting rod 22 may easily undergo micro-displacement during subsequent construction due to vibration, environmental interference, or human error, resulting in height deviation of the ruler 25 and inaccurate deflection readings. The fixing member 28 is tightened to the connecting rod 22 via threads and abuts the top of the mounting plate 23, effectively securing the mounting plate 23 in the adjusted position, preventing loosening and ensuring the reliability and consistency of the measurement data. Shipbuilding sites often experience vibration sources such as welding, knocking, and movement. This fixing structure provides an axial locking effect on the mounting plate 23, effectively improving its anti-interference capability. The fixing member 28 is a nut that, combined with the standard thread structure of the connecting rod 22 and sleeve 21, completes the functional construction. This eliminates the need for additional complex components, facilitates mass production, and does not significantly increase costs, thus meeting functional requirements while also being economical.

[0045] Furthermore, the adsorption block 31 is a magnet. The operator only needs to place the detection component 3 close to the surface of the steel keel, and it can be automatically adsorbed firmly without the need for screws, clamps or other fixing structures. This method greatly improves the efficiency of installation and disassembly of the device, and is particularly suitable for multi-point, short-cycle, and multi-batch construction monitoring needs, and is convenient for rapid movement and reuse between multiple measurement positions. The keel is usually a steel structure, and the magnetic adsorption provides a strong holding force. During the measurement process, even if the slipway vibrates or the equipment collides slightly, the connection can be maintained stable, effectively preventing measurement interruptions or data anomalies caused by loose adsorption, and improving the stability of system operation. The magnet's adsorption method does not rely on preset holes or flat surfaces, and can be flexibly adsorbed on keel surfaces of different shapes, adapting to on-site environments with complex hull structures, narrow spaces or limited installation angles, thereby significantly improving the device's layout freedom and environmental adaptability.

[0046] Furthermore, the detection component 3 also includes a lifting eye screw 33, which is threadedly connected to the adsorption block 31. The keel of the hull is often located in an internal structural area with limited space, and it is difficult to directly position the adsorption block 31 by manually applying force. Through the lifting eye screw 33, the operator can use tools to remotely pull or guide, thereby achieving precise placement and stable adsorption of the detection component 3 in the confined space. The lifting eye screw 33 is a universal standard part that is directly threadedly connected to the adsorption block 31. It does not add complex processes and does not affect the fitting relationship between the adsorption surface and the hull. It effectively improves the on-site adaptability and controllability of the device at an extremely low cost.

[0047] Furthermore, the pointer 32 includes a mounting portion 321 and a pointing portion 322 that are fixedly connected to each other. The mounting portion 321 and the pointing portion 322 are perpendicular to each other. The mounting portion 321 is pressed between the thread of the eye screw 33 and the adsorption block 31 to connect the pointer 32 and the adsorption member. The mounting portion 321 is clamped in the threaded pressing position between the eye screw 33 and the adsorption block 31, which can simultaneously achieve a stable connection to the pointer 32 when tightening the eye, avoiding the additional screws or bracket structure required for traditional single-fixing of the pointer 32, greatly simplifying the assembly process and improving assembly efficiency. The mounting portion 321 and the pointing portion 322 are in a vertical connection relationship, so that the pointing portion 322 can always point vertically to the scale surface of the ruler 25, ensuring that there is no angular deviation or projection error when reading, which helps to improve the intuitiveness and accuracy consistency of the reading, and is particularly suitable for monitoring requirements of millimeter-level changes.

[0048] Furthermore, the base 1 is provided with a plurality of circumferentially arranged mounting holes 11, and the base 1 is connected to the slipway by bolts, and the base 1 can be arranged horizontally with the slipway. The plurality of circumferentially distributed mounting holes 11 enable the base 1 to form a multi-point rigid connection with the slipway. Compared with a single-point or a few-point connection structure, the force distribution is more uniform, and the tensile and shear resistance is stronger. When there is construction vibration or other external force interference on the slipway, the stability of the device can still be maintained, thereby ensuring the measurement accuracy of sensitive components such as the ruler 25 and the pointer 32. Since the base 1 can adjust the contact surface height through multiple bolt positions and cooperate with the spirit level 24 for leveling operations, it is ensured that the device can always remain horizontal with the ground after installation. This provides a reliable reference surface for subsequent measurements and improves the accuracy and consistency of the overall system measurement. Compared with irreversible fixing methods such as welding or bonding, the bolt connection method is easier to disassemble and rearrange. Especially in multi-station or multi-stage construction projects, the device can be quickly transferred to a new monitoring point for reuse as needed, greatly improving the flexibility and economy of the device.

[0049] The working process of the present invention is as follows: the base 1 is fixed to the slipway with bolts through multiple circumferentially arranged mounting holes 11; by adjusting the contact surface between the base 1 and the ground and combining it with the spirit level 24 on the top of the mounting plate 23, the posture of the device is adjusted to be horizontal, providing a reference for subsequent measurements; the base 1 is designed to ensure stable fit with the slipway and has the ability to resist vibration and offset. The height of the entire adjustment assembly 2 is adjusted by rotating the connecting rod 22; the top of the connecting rod 22 is connected to the ruler 25 through a triangular prism-shaped handle block 26, and the operator can directly use a wrench to act on the edge of the handle block 26 to achieve efficient adjustment; the bottom end of the ruler 25 is adjusted to be flush with the preset benchmark reference point of the hull to complete the zero point calibration; using the fixing piece 28 located between the connecting rod 22 and the mounting plate 23, the mounting plate 23 and the connecting rod 22 are threadedly locked to prevent subsequent loosening and causing reference offset. The adsorption block 31 is adsorbed to the target monitoring position of the hull keel. The adsorption block 31 utilizes a magnetic structure, enabling fast, secure, and non-destructive adsorption and fixation, adapting to the surface of the steel keel. A lifting eye screw 33 is located at the top of the detection assembly 3, facilitating tool-assisted placement of the adsorption block 31 in confined spaces, enhancing safety and ease of operation. The pointer 32 is vertically constructed from a mounting portion 321 and a pointing portion 322. The mounting portion 321 is clamped onto the threaded interface between the lifting eye screw 33 and the adsorption block 31 and secured with a set screw, completing the assembly of the pointer 32 and the detection assembly 3. The pointing portion 322 faces vertically toward the ruler 25, ensuring alignment with the ruler surface for accurate reading. When the keel undergoes vertical displacement due to factors such as its own weight, temperature, and construction loads, the adsorption block 31 moves with the keel, causing the pointer 32 to shift vertically. The pointer 32's reading relative to the scale on the ruler 25 changes, and the user can intuitively read the current deflection value by observing the scale on the ruler 25 pointed to by the end of the pointer 32 away from the adsorption block 31. The reading method is clear, requires no calculations, and can be read repeatedly, supporting periodic data monitoring. Since all components of the device are of modular structural design, such as the magnetic adsorption block 31, detachable ruler 25 and pointer 32 components, the device can be quickly moved from one measuring point to another; the adjustment component 2 and the base 1 can remain stationary, and multi-point rotation measurement can be carried out by replacing only the detection component 3, greatly improving the measurement efficiency and system flexibility on the construction site; each component is easy to maintain and replace, especially the handle block 26, eye screw 33, etc., which are designed with standard parts, with low maintenance costs.

[0050] In summary, the present invention provides a hull keel deflection monitoring device whose calibration ensures an initial measurement value of zero. Conventional laser theodolite measurement methods are susceptible to obstruction by slipway structures, resulting in measurement interruptions or errors. This embodiment, by employing a physical contact-based reading mechanism using a pointer 32 and ruler 25, as well as a direct connection between the adsorption block 31 and the keel, enables the device to operate stably under complex working conditions, independent of a visible laser path, and significantly improves its adaptability to field environments. This device utilizes a level 24 in the adjustment assembly 2 for rapid leveling, and a threaded mechanism for height adjustment on the connecting rod 22. Installation and calibration require only one operator. Furthermore, the pointer 32 and ruler 25 provide intuitive and rapid readings, eliminating the need for electronic processing or optical calculations. This significantly improves measurement efficiency and meets the demands of modern shipbuilding. This device, with its stable physical structure and fine adjustment, achieves millimeter-level measurement accuracy. Furthermore, its manufacturing and maintenance costs are far lower than those of laser instruments, avoiding the high costs of high-precision solutions while overcoming the inaccuracies of low-cost solutions. This device is highly valuable for engineering deployment. By placing the level gauge 24 atop the mounting plate 23, the device maintains a horizontal baseline. The coaxial placement of the pointer 32 and ruler 25 ensures consistent readings, significantly reducing measurement deviations caused by parallax, uneven surfaces, or vibrations from the platform. Furthermore, the design of the pointer 32 ensures long-term retention of readings, facilitating repeated testing and long-term data comparison, making it suitable for periodic construction monitoring.

[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A hull keel deflection monitoring device, characterized in that: It comprises a base (1), an adjustment component (2) and a detection component (3); The base (1) is used for connecting to a slipway; The adjustment assembly (2) comprises a sleeve (21), a connecting rod (22), a mounting plate (23), a spirit level (24) and a ruler (25); the connecting rod (22) is threadedly connected to the sleeve (21); the bottom of the sleeve (21) is fixedly connected to the base (1); the bottom of the mounting plate (23) is connected to the top of the sleeve (21); the spirit level (24) is connected to the top of the mounting plate (23); the bottom of the ruler (25) is connected to the top of the connecting rod (22); and the ruler (25) is provided with a scale arranged along its own extension direction; The detection assembly (3) comprises an adsorption block (31) and a pointer (32), wherein the adsorption block (31) is detachably connected to the keel of the hull, and the pointer (32) is fixedly connected to the adsorption block (31), and the pointer (32) is coaxially arranged with the ruler (25); The base (1) is adjusted until the level gauge (24) is level, the connecting rod (22) is rotated until the bottom of the ruler (25) is flush with the benchmark setting value of the hull, and the end of the pointer (32) away from the adsorption block (31) points to the indicated value on the ruler (25).

2. The hull keel deflection monitoring device according to claim 1, characterized in that: The adjustment assembly (2) further comprises a handle block (26), the bottom of the ruler (25) is connected to the top of the connecting rod (22) via the handle block (26), the bottom of the handle block (26) is fixedly connected to the top of the connecting rod (22), and the bottom of the ruler (25) is fixedly connected to the top of the handle block (26).

3. The hull keel deflection monitoring device according to claim 2, characterized in that: The handle block (26) is a triangular prism, and the handle block (26) is used to facilitate the wrench to rotate the connecting rod (22).

4. The hull keel deflection monitoring device according to claim 1, characterized in that: The mounting plate (23) is provided with gripping grooves (27) running through both sides thereof.

5. The hull keel deflection monitoring device according to claim 1, characterized in that: The adjustment assembly (2) further comprises a fixing member (28), wherein the fixing member (28) is threadedly connected to the connecting rod (22), and a side of the fixing member (28) close to the sleeve (21) abuts against the mounting plate (23).

6. The hull keel deflection monitoring device according to claim 1, characterized in that: The adsorption block (31) is a magnet.

7. The hull keel deflection monitoring device according to claim 1, characterized in that: The detection assembly (3) further comprises a lifting screw (33), wherein the lifting screw (33) is threadedly connected to the adsorption block (31).

8. The hull keel deflection monitoring device according to claim 7, characterized in that: The pointer (32) comprises a mounting portion (321) and a pointing portion (322) fixedly connected to each other, the mounting portion (321) and the pointing portion (322) being perpendicular to each other, and the mounting portion (321) being pressed between the thread of the eye screw (33) and the adsorption block (31) to connect the pointer (32) and the adsorption member.

9. The hull keel deflection monitoring device according to claim 7, characterized in that: The base (1) is provided with a plurality of circumferentially arranged mounting holes (11); the base (1) is connected to the slipway via bolts; and the base (1) can be arranged horizontally with the slipway.

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