Novel combinable portable hatch cover deflection measuring tool
By designing a novel, modular, portable hatch deflection measuring fixture, which combines a strong magnetic suction cup and a flexible tension wire, a single person can quickly and accurately measure hatch deflection, solving the problem that traditional measurements require multiple people to work together and improving the operational efficiency of shipbuilding and repair sites.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江友联修造船有限公司
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-14
AI Technical Summary
In ship repair, hatch deflection measurement requires specialized testing personnel and equipment, and is limited by congested space, which affects production efficiency.
A novel modular portable hatch deflection measuring fixture is designed, which uses a strong magnetic suction cup to fix the base, a flexible tension line and locking components to cooperate, and a one-way check component to ensure measurement accuracy. It can be operated independently by a single person.
It enables rapid and accurate hatch deflection measurement in cross-operation environments, reducing labor costs, improving operational flexibility and measurement accuracy, and adapting to the complex environment of ship repair and construction sites.
Smart Images

Figure CN224499372U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ship repair technology, and in particular to a novel modular portable hatch deflection measuring tool. Background Technology
[0002] Routine ship repairs involve the repair of weatherproof and tight cargo hatch covers (for dry cargo ships, bulk carriers, and container ships). The measurement of deflection before and after the hatch cover is particularly important. Usually, measuring deflection requires professional inspection personnel, equipped with high-precision measuring equipment and sufficient manpower.
[0003] The shipbuilding and repair industry suffers from overlapping and congested construction sites, which restricts the placement of measuring instruments. Furthermore, instrument maintenance is cyclical and requires professional testing and calibration, which greatly affects production efficiency and makes it impossible to guarantee the repair and repair cycle.
[0004] To address these issues, those skilled in the art have proposed a novel modular portable hatch deflection measuring fixture. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] In view of the problems of limited instrument placement, difficult calibration, and difficult measurement caused by the above-mentioned or existing technologies, this utility model is proposed.
[0007] Therefore, the purpose of this utility model is to provide a novel modular portable hatch deflection measuring fixture.
[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a novel combinable portable hatch deflection measuring fixture, comprising two bases, wherein the bases are provided with fixing components for fixing to the measuring base surface;
[0009] A main spinning wheel and an auxiliary spinning wheel are respectively installed on the base. A coil is installed on the inner side of both the main spinning wheel and the auxiliary spinning wheel, and a flexible tension line is connected between the two coils.
[0010] Tension adjustment components provided on the main spinning wheel and the auxiliary spinning wheel are used to adjust the tension of the flexible tension thread.
[0011] A locking component that cooperates with the flexible tension line is used to lock the tension state of the flexible tension line.
[0012] A one-way backstop assembly is installed on one side of the outer wall of the main spinning wheel and the auxiliary spinning wheel.
[0013] In a preferred embodiment of this utility model, the fixing component is a strong magnetic suction cup, and the strong magnetic suction cup is detachably connected to the base.
[0014] In a preferred embodiment of this utility model, connecting screws are installed on both sides of the base surface, and the base is detachably connected to the strong magnetic suction cup through the connecting screws.
[0015] In a preferred embodiment of this utility model, the flexible tension line is a fishing line, which is mounted on the coil. Both sides of the adjacent ends of the main spinning wheel and the auxiliary spinning wheel are equipped with wire hole brackets. A wire hole bracket vertical rod is installed between the two wire hole brackets, and the wire hole bracket vertical rod is provided with a wire hole for the fishing line to pass through.
[0016] In a preferred embodiment of this utility model, the tension adjusting component includes a rocker handle, which is respectively disposed on the main spinning wheel and the auxiliary spinning wheel, and the rocker handle is drivingly connected to the main spinning wheel and the auxiliary spinning wheel.
[0017] In a preferred embodiment of this utility model, the locking component includes a locking device, the locking device includes a brake wall, the brake wall is installed on the main spinning wheel and the auxiliary spinning wheel, a pressure pad is installed on the brake wall, and a locking knob is installed on the pressure pad.
[0018] In a preferred embodiment of this utility model, the brake wall is equipped with an assembly and a plurality of rollers.
[0019] In a preferred embodiment of this utility model, the assembly includes a spring and a second unloading roller, the spring being mounted on the brake wall and the second unloading roller being mounted on one end of the spring.
[0020] In a preferred embodiment of this utility model, the one-way backstop assembly includes a bearing, which is installed at the end of the main spinning wheel and the auxiliary spinning wheel away from the brake wall. A gear disk is installed on the outer circumference of the bearing. Limit adjustment gears are meshed at both ends of the outer circumference of the gear disk. Connecting screws are provided on the inner circumference of the two limit adjustment gears. One end of one of the connecting screws is installed at the center of the surface of the brake wall.
[0021] The beneficial effects of this novel combinable portable hatch deflection measuring fixture are as follows:
[0022] This device is space-saving and can be operated independently by a single person. The main spinning wheel and auxiliary spinning wheel are quickly fixed to the measuring base of the hatch cover by a strong magnetic suction cup. After opening the locking part of the main spinning wheel to connect the fishing line to the auxiliary wheel at the other end through the wire hole, the handle is turned clockwise to tighten the fishing line and then the locking device is locked. The fishing line can be measured after it is taut. The deflection can be completed by measuring the vertical distance between the fishing line and the hatch cover multiple times with a ruler. The device can be disassembled and reassembled freely. It is simple, fast and accurate, and solves the problem of traditional measurement requiring multiple people to cooperate. It saves labor costs significantly and is suitable for the environment of cross-operation and congested space on ship repair and construction sites. The placement of the instrument is not restricted, which improves the flexibility of operation.
[0023] The function of the one-way backstop component is to control the rotation direction of the coil after locking, ensuring that the line can only rotate in one direction, preventing the fishing line from loosening in the opposite direction after tightening. After unlocking, the handle is rotated in the opposite direction to drive the coil to connect the fishing line through the wire hole to the auxiliary spinning wheel at the other end. Then, the handle is rotated in the forward direction to drive the coil to tighten the fishing line. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0025] Figure 1 This is a schematic diagram of the overall structure of a new type of modular portable hatch deflection measuring tool.
[0026] Figure 2 A top view schematic diagram of a novel modular portable hatch deflection measuring fixture.
[0027] Figure 3 for Figure 2 A schematic diagram of the AA cross-sectional structure.
[0028] Figure 4 for Figure 3 A magnified structural diagram at point C.
[0029] Figure 5 A schematic diagram of the unidirectional backstop assembly of a novel combinable portable hatch deflection measuring fixture.
[0030] Figure 6 A schematic diagram of the brake wall structure for a novel modular portable hatch deflection measuring fixture.
[0031] Figure 7 A schematic diagram of the assembly components for a novel modular portable hatch deflection measuring fixture.
[0032] Figure 8 This is a schematic diagram of the working structure of a new type of combinable portable hatch deflection measuring tool.
[0033] In the diagram: 1. Base; 2. Strong magnetic suction cup; 3. Main spinning wheel; 4. Auxiliary spinning wheel; 5. Handle; 6. Connecting screw; 7. Locking device; 8. Fishing line; 9. Roller 1; 10. Spring; 11. Unloading roller 2; 12. Pressure pad; 13. Locking knob; 14. Brake wall; 15. Assembly; 16. Wire hole; 17. Wire hole bracket; 18. Wire hole bracket vertical rod; 19. One-way backstop assembly; 1901. Gear disk; 1902. Bearing; 1903. Limit adjustment gear; 1904. Connecting screw; 20. Coil. Detailed Implementation
[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0035] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0036] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.
[0037] Example 1
[0038] Reference Figures 1 to 8 This is the first embodiment of the present utility model. This embodiment provides a novel combinable portable hatch deflection measuring tool, which can adapt to the environment of cross-operation and crowded site in ship repair and construction, and the instrument placement is not restricted, making the measurement operation more flexible. It includes two bases 1, and the base 1 is provided with fixing components for fixing to the measuring base surface.
[0039] The main spinning wheel 3 and the auxiliary spinning wheel 4 are respectively installed on the base 1. The inner side of the main spinning wheel 3 and the auxiliary spinning wheel 4 are both equipped with coils 20, and a flexible tension line is connected between the two coils 20.
[0040] Tension adjustment components located on the main spinning wheel 3 and the auxiliary spinning wheel 4 are used to adjust the tension of the flexible tension thread.
[0041] A locking component that works with a flexible tension line to lock the tension state of the flexible tension line;
[0042] One-way backstop assembly 19 is installed on one side of the outer wall of the main spinning wheel 3 and the auxiliary spinning wheel 4.
[0043] In use, the bases are fixed to the measuring base surface by the fixing components on the two bases 1, so that the main spinning wheel 3 and auxiliary spinning wheel 4 installed on the base are placed stably. The flexible tension line between the main spinning wheel 3 and the auxiliary spinning wheel 4 forms the measuring reference. The tension adjustment component on the main spinning wheel 3 and the auxiliary spinning wheel 4 is used to adjust the tension of the flexible tension line. After the tension is appropriate, the tension state is locked by the locking component that cooperates with the flexible tension line. The function of the one-way backstop component 19 is to ensure that the winding direction can only rotate in one direction, preventing the flexible tension line from loosening in the opposite direction after tightening. The measurement preparation is completed. Then, a steel ruler is used to measure the distance between the flexible tension line and the hatch cover plane every 1m or 0.5m. After multiple measurements, the average value is taken to complete the deflection measurement, which objectively reflects the overall deflection characteristics of the structure. The average value is used to evaluate whether the overall deformation meets the standard after the hatch cover is repaired.
[0044] Example 2
[0045] Reference Figures 1 to 8 This is the second embodiment of the present invention. Unlike the previous embodiment, the fixing component is a strong magnetic suction cup 2, and the strong magnetic suction cup 2 is detachably connected to the base 1.
[0046] Specifically, connecting screws 6 are installed on both sides of the surface of the base 1, and the base 1 is detachably connected to the strong magnetic suction cup 2 through the connecting screws 6.
[0047] Furthermore, the flexible tension line is a fishing line 8, which is installed on the coil 20. Both sides of the adjacent end of the main spinning wheel 3 and the auxiliary spinning wheel 4 are equipped with wire hole brackets 17. A wire hole bracket vertical rod 18 is installed between the two wire hole brackets 17. The wire hole bracket vertical rod 18 is provided with wire holes 16 for the fishing line 8 to pass through.
[0048] The tension adjustment component includes a rocker arm 5, which is respectively mounted on the main spinning wheel 3 and the auxiliary spinning wheel 4, and is connected to the main spinning wheel 3 and the auxiliary spinning wheel 4 in a transmission manner.
[0049] In use, the fishing line 8 passes through the wire hole 16 on the vertical rod 18 of the wire hole bracket and connects the main spinning wheel 3 and the auxiliary spinning wheel 4. The tension of the fishing line 8 is adjusted by the crank 5, which is respectively set on the main spinning wheel 3 and the auxiliary spinning wheel 4 and is connected to them. After the tension of the fishing line 8 is appropriate, the tension is locked by the locking component, and the deflection of the hatch can be measured.
[0050] Example 3
[0051] Reference Figures 1 to 8 This is the third embodiment of the present invention. Unlike the previous embodiment, the locking component includes a locking device 7, which includes a brake wall 14. The brake wall 14 is installed on the main spinning wheel 3 and the auxiliary spinning wheel 4. A pressure pad 12 is installed on the brake wall 14, and a locking knob 13 is installed on the pressure pad 12.
[0052] Specifically, the brake wall 14 is equipped with an assembly 15 and multiple rollers 9.
[0053] Furthermore, assembly 15 includes spring 10 and unloading roller 11, spring 10 is mounted on brake wall 14, and unloading roller 11 is mounted on one end of spring 10.
[0054] Furthermore, the one-way backstop assembly 19 includes a bearing 1902, which is installed at the end of the main spinning wheel 3 and the auxiliary spinning wheel 4 away from the brake wall 14. A gear disk 1901 is installed on the outer circumference of the bearing 1902. Both ends of the outer circumference of the gear disk 1901 are meshed with limit adjustment gears 1903. A connecting screw 1904 is provided on the inner circumference of the two limit adjustment gears 1903. One end of the connecting screw 1904 is installed at the center of the surface of the brake wall 14.
[0055] The gear disk 1901 drives the rotation of the limit adjustment gear 1903, which is linked to the brake wall 14 through the connecting screw 1904. After the limit adjustment gear 1903 is locked, it controls the rotation direction of the coil 20, ensuring that the line winding direction can only rotate in one direction, preventing the fishing line 8 from loosening in the opposite direction after tightening. After the lock is released, the handle 5 is rotated in the opposite direction to drive the coil 20 so that the fishing line 8 is connected to the auxiliary spinning wheel 4 at the other end through the wire hole 16. Then, the handle 5 is rotated in the forward direction to drive the coil 20 to tighten the fishing line 8.
[0056] The hatch deflection measurement can be completed by a single person, greatly saving labor costs. The fishing line 8 is made of a lightweight and strong material. The main spinning wheel 3 and the auxiliary spinning wheel 4 are fixed by connecting a strong magnetic suction cup 2. The tightness of the line segment can be determined by operating the crank handle 5 to tighten the fishing line 8, then tightening the locking knob 13 and locking the locking device 7 before measurement. Through use and verification, the measurement accuracy has been greatly improved and the inspection cycle has been shortened.
[0057] When the crank handle 5 is turned clockwise, the strong fishing line 8 is tightened, and the two ends of the line gradually straighten. At this time, by manually rotating the locking knob 13, the pressure pad 12 is pushed to apply pressure to the brake wall 14. This pressure is mechanically transmitted to roller 9 and unloading roller 11. When the pressure is transmitted to the assembly 15, the spring 10 is compressed, generating a reverse elastic force, which pushes the unloading roller 11 and roller 9 towards the fishing line 8 at the same time. Roller 9 (rigid material) is in close contact with the surface of the fishing line 8, forming radial pressure. At this time, the fishing line 8 needs to overcome the static friction of roller 9 when it moves, thereby limiting its sliding.
[0058] When the pressure reaches the set value, the roller 9 is squeezed into the slit between the fishing line 8 and the spinning wheel structure, forming a mechanical locking effect similar to a wedge. That is, it is wedged into the narrow space to form a rigid lock. At this time, the fishing line 8 is rigidly fixed and cannot be loosened by external force. If the tension of the fishing line 8 exceeds the set threshold, the unloading roller 11 will compress the spring 10 and release the fishing line 8, preventing the fishing line 8 from breaking through elastic relief, while maintaining the basic locking state.
[0059] After opening the locking device 7 of the main spinning wheel 3 to connect the fishing line 8 to the auxiliary spinning wheel 4 at the other end through the wire hole 16, operate the crank handle 5 to tighten the fishing line 8. When the line segment between the two ends is tightened to a straight line, use the locking device 7 to wedge the roller 9 into the narrow space to form a rigid lock for measurement. When the tension is too great, the fishing line 8 can be released through the unloading roller 11 to avoid breaking the line. After the fishing line 8 is taut, use a steel ruler to measure the distance between the fishing line 8 and the hatch cover plane every 1m or 0.5m. After multiple measurements, take the average value to complete the deflection measurement, which objectively reflects the overall deflection characteristics of the structure. The average value is used to assess whether the overall deformation meets the standard after the hatch cover is repaired.
[0060] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A novel modular portable hatch deflection measuring fixture, characterized in that: include, Two bases (1), each base (1) is provided with a fixing component for fixing to the measuring base surface; The main spinning wheel (3) and the auxiliary spinning wheel (4) are respectively installed on the base (1). The inner side of the main spinning wheel (3) and the auxiliary spinning wheel (4) are both equipped with coils (20), and a flexible tension line is connected between the two coils (20). Tension adjustment components provided on the main spinning wheel (3) and auxiliary spinning wheel (4) are used to adjust the tension of the flexible tension thread; A locking component that cooperates with the flexible tension line is used to lock the tension state of the flexible tension line. A one-way backstop assembly (19) is installed on one side of the outer wall of the main spinning wheel (3) and the auxiliary spinning wheel (4).
2. The novel modular portable hatch deflection measuring fixture as described in claim 1, characterized in that: The fixing component is a strong magnetic suction cup (2), and the strong magnetic suction cup (2) is detachably connected to the base (1).
3. The novel combinable portable hatch deflection measuring fixture as described in claim 2, characterized in that: Both sides of the base (1) are equipped with connecting screws (6), and the base (1) is detachably connected to the strong magnetic suction cup (2) through the connecting screws (6).
4. The novel combinable portable hatch deflection measuring fixture as described in claim 3, characterized in that: The flexible tension line is a fishing line (8), which is installed on the coil (20). Both sides of the main spinning wheel (3) and the auxiliary spinning wheel (4) are equipped with wire hole brackets (17). A wire hole bracket vertical rod (18) is installed between the two wire hole brackets (17). The wire hole bracket vertical rod (18) is provided with wire holes (16) for the fishing line (8) to pass through.
5. The novel combinable portable hatch deflection measuring fixture as described in claim 4, characterized in that: The tension adjustment component includes a rocker arm (5), which is respectively disposed on the main spinning wheel (3) and the auxiliary spinning wheel (4), and the rocker arm (5) is connected to the main spinning wheel (3) and the auxiliary spinning wheel (4) in a transmission connection.
6. The novel combinable portable hatch deflection measuring fixture as described in claim 5, characterized in that: The locking component includes a locking device (7), which includes a brake wall (14). The brake wall (14) is mounted on the main spinning wheel (3) and the auxiliary spinning wheel (4). A pressure pad (12) is mounted on the brake wall (14), and a locking knob (13) is mounted on the pressure pad (12).
7. The novel combinable portable hatch deflection measuring fixture as described in claim 6, characterized in that: The brake wall (14) is equipped with an assembly (15) and multiple rollers (9).
8. The novel combinable portable hatch deflection measuring fixture as described in claim 7, characterized in that: The assembly (15) includes a spring (10) and a second unloading roller (11), the spring (10) being mounted on the brake wall (14) and the second unloading roller (11) being mounted on one end of the spring (10).
9. The novel combinable portable hatch deflection measuring fixture as described in claim 8, characterized in that: The one-way backstop assembly (19) includes a bearing (1902), which is installed on the end of the main spinning wheel (3) and the auxiliary spinning wheel (4) away from the brake wall (14). A gear disk (1901) is installed on the outer circumference of the bearing (1902). Both ends of the outer circumference of the gear disk (1901) are meshed with limit adjustment gears (1903). A connecting screw (1904) is provided on the inner circumference of the two limit adjustment gears (1903). One end of the connecting screw (1904) is installed at the center of the surface of the brake wall (14).