A bed leveling device for underwater operations
By designing a bed-leveling auxiliary device for underwater operations, the problems of low efficiency and poor safety in traditional methods have been solved, achieving efficient and safe bed leveling. Furthermore, the device is detachable and assembleable, reducing transportation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA STATE CONSTR PORT ENG GRP
- Filing Date
- 2025-02-11
- Publication Date
- 2026-05-26
Smart Images
Figure CN224281289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underwater bed leveling technology, specifically to an auxiliary bed leveling device for underwater operations. Background Technology
[0002] In gravity-type wharf structures, the bottom foundation typically uses a riprap foundation. After the riprap is placed, the foundation is leveled to eliminate unevenness on the riprap surface and ensure uniform settlement of the structure. With the development of waterway engineering, the leveling requirements for riprap foundations are constantly increasing to meet the needs of installing precast hollow and solid components.
[0003] However, traditional leveling methods rely on manual divers, which is inefficient and greatly affected by weather and underwater visibility. Therefore, it is crucial to improve the efficiency of subgrade leveling construction while ensuring safety, efficiency, and the effectiveness of the leveling process. Utility Model Content
[0004] To address the problems of the prior art, this invention provides a base bed auxiliary leveling device for underwater operations, which can improve the efficiency and safety of base bed leveling without relying on divers for underwater construction operations.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a base bed auxiliary leveling device for underwater operations, comprising a height limiting frame for limiting the top elevation of the base bed to be leveled, a plurality of support columns set on the height limiting frame, the support columns being slidably connected to the frame of the height limiting frame, a limiting mechanism for limiting the sliding length of the support columns being provided on the height limiting frame, and a construction platform being provided on the upper part of the height limiting frame.
[0006] By adopting the above structural design, the underwater base bed can be divided into leveling areas with the same area as the device, and then leveled sequentially. The height of the support column can be adjusted according to the different leveling heights of the areas to be leveled, which improves the efficiency and safety of underwater base bed leveling.
[0007] Preferably, the height-limiting frame is a cuboid frame.
[0008] The above structural design enhances the stability of this device.
[0009] Preferably, the height limiting frame includes multiple vertical frames, a first horizontal frame and a second horizontal frame inserted into the vertical frames, and a first connecting pipe for insertion into the first horizontal frame is fixedly connected to both ends of the vertical frames. A first mounting hole is opened on the wall of the first connecting pipe and at both ends of the first connecting pipe. A second connecting pipe for insertion into the second horizontal frame is fixedly connected to both ends of the vertical frames, and a second mounting hole is opened on the wall of the second connecting pipe and at both ends of the second horizontal frame.
[0010] With the above structural design, this device can be disassembled and assembled, making it easy to transport. Damaged parts can be replaced individually, allowing for recycling and cost savings.
[0011] Preferably, the construction platform includes multiple support rods fixedly connected to the first and second horizontal frames, and a support net fixedly connected to the support rods.
[0012] With the above structural design, workers can adjust the length of the support columns on the construction platform.
[0013] Preferably, a sleeve is fixedly connected to the vertical frame, and the support column passes through the inside of the sleeve.
[0014] The above structural design is simple, and the support columns can be removed from the height-limiting frame.
[0015] Preferably, the limiting mechanism includes a guide chain with its top end connected to the top of the support column, and the bottom end of the guide chain connected to the height limiting frame.
[0016] With the above structural design, workers can adjust the height of the support column using the guide chain, which saves more effort.
[0017] Preferably, support plates are provided at both ends of the support column, and the support plates are provided with internal threaded holes. The support plates are connected to the support column by threads.
[0018] The above structural design increases the stability of the support column on the underwater foundation.
[0019] Compared with the prior art, the beneficial effects of this utility model are:
[0020] 1) After dividing the underwater foundation into leveling areas with the same area as this device, this device is used to level them sequentially. The height of the support column can be adjusted according to the different leveling heights of the areas to be leveled, which improves the efficiency and safety of underwater foundation leveling.
[0021] 2) This device can be disassembled and assembled, making it easy to transport. Damaged parts can be replaced individually, allowing for recycling and cost savings. Attached Figure Description
[0022] Figure 1 This is a structural diagram illustrating the construction and installation of this utility model;
[0023] Figure 2 This is a schematic diagram of the structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the height-limiting frame of this utility model; Detailed Implementation
[0025] Please see Figure 1 , Figure 2 , Figure 3 This utility model provides a technical solution: a base bed auxiliary leveling device for underwater operations, comprising a height limiting frame 1 for limiting the top elevation of the base bed to be leveled, and multiple support columns 2 set on the height limiting frame 1. The support columns 2 are slidably connected to the edge of the height limiting frame 1. The height limiting frame 1 is provided with a limiting mechanism for limiting the sliding length of the support columns 2. A construction platform 5 is set on the upper part of the height limiting frame 1. The height limiting frame 1 is a cuboid frame.
[0026] Four sets of support columns 2 are set, and the support columns 2 are located at the four corners of the height restriction frame 1.
[0027] The height-limiting frame 1 includes multiple vertical frames 11, a first horizontal frame 12 and a second horizontal frame 13 inserted into the vertical frames 11. Both ends of each vertical frame 11 are fixedly connected to a first connecting pipe 14 for insertion into the first horizontal frame 12. First mounting holes are correspondingly formed on the wall of the first connecting pipe 14 at both ends. Both ends of each vertical frame 11 are fixedly connected to a second connecting pipe 15 for insertion into the second horizontal frame 13. Second mounting holes are correspondingly formed on the wall of the second connecting pipe 15 at both ends of the second horizontal frame 13. The first horizontal frame 12 and the second horizontal frame 13 are perpendicular to each other. Four sets of vertical frames 11 are provided. The height-limiting frame 1 is a cuboid frame, with the vertical frames 11 serving as the height side, the first horizontal frame 12 serving as the width side, and the second horizontal frame serving as the length side.
[0028] When assembling the height restriction frame 1, the first horizontal frame 12 is inserted into the first connecting pipe 14, and then bolts are inserted into the first mounting holes. Nuts are installed on the bolts to fix the first horizontal frame 12 to the vertical frame 11. Then the second horizontal frame 13 is inserted into the second connecting pipe 15, and then bolts are inserted into the second mounting holes. Nuts are installed on the bolts to fix the second horizontal frame 13 to the vertical frame 11.
[0029] The construction platform includes multiple support rods 51 fixedly connected to the first horizontal frame 12 and the second horizontal frame 13, and a support net 52 fixedly connected to the support rods 51. In this embodiment, the support rods 51 are angle steel.
[0030] The sleeve 3 is fixedly connected to the vertical frame 11, and the support column 2 is inserted inside the sleeve 3. Two coaxially arranged sleeves 3 are fixed on each vertical frame 11, and then the support column 2 is inserted into the sleeve 3 in sequence.
[0031] The limiting mechanism includes a guide chain 4 connected to the top of the support column 2, and the bottom end of the guide chain 4 connected to the height limiting frame 1. Four sets of guide chains 4 are provided, with one guide chain 4 connected to the top of each support column 2. Lifting lugs are fixedly connected to the four corners of the height limiting frame 1. The upper hook of the guide chain 4 is fixedly connected to the top of the support column 2, and the lower hook of the guide chain 4 is connected to the lifting lug. Due to the unevenness of the underwater foundation, workers need to adjust the guide chains 4 at the four corners of the height limiting frame 1 to adjust the four support columns 2, ensuring that the four corners of the height limiting frame 1 are on the same horizontal plane, and that the lower ends of the support columns 2 are supported on the underwater foundation, while ensuring that the height limiting frame 1 is horizontal and does not tilt.
[0032] Both ends of the support column 2 are provided with support plates 21, and the support plates 21 are provided with internal threaded holes. The support plates 21 are connected to the support column 2 by threads.
[0033] Working principle: When using this device, firstly, the vertical frame 11, the first horizontal frame 12, and the second horizontal frame 13 need to be assembled into a cuboid frame. Then, the workers insert the support column 2 into the sleeve 3 in sequence, and then connect the support plate 21 to the support column 2 by thread. Next, fix the upper hook of the guide chain 4 to the top of the support column 2, and connect the lower hook of the guide chain 4 to the lifting lug. After the device is assembled, it is lowered into the underwater base by a barge.
[0034] The device is transported to the area to be leveled, and then hoisted there. Workers board the construction platform 5 and use GPS and other measuring equipment to measure the top elevation of the height-limiting frame 1. The support columns 2 are then supported by the guide chain 4. When the difference between the top elevation of the height-limiting frame 1 and its height equals the top elevation of the base bed to be leveled, the guide chain 4 adjustment is stopped. After adjustment, the four corners of the height-limiting frame 1 are repeatedly measured to ensure its elevation remains unchanged before leaving the site. Subsequently, an excavator on a barge backfills the frame with leveling material. The excavator bucket's pointed teeth are welded to scrapers, which are used to repeatedly level the area within the frame. During the backfilling and leveling process, workers on the construction platform 5 repeatedly use water to measure the thickness and flatness of the backfill material and provide feedback to the excavator operator. Once the leveling within the device is complete, and the workers confirm that the thickness and flatness of the base bed leveling are correct, the device can be hoisted to the next section for continued construction.
[0035] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the scope of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this utility model's implementation.
[0036] The present invention has been described above with reference to preferred embodiments, but the scope of protection of the present invention is not limited thereto. All technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications can be made to the present invention, and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.
Claims
1. A bed-assist levelling device for underwater operations, characterised in that: It includes a height-limiting frame (1) for limiting the elevation of the top of the bed to be leveled, and multiple support columns (2) set on the height-limiting frame (1). The support columns (2) are slidably connected to the frame of the height-limiting frame (1) and a limiting mechanism for limiting the sliding length of the support columns (2) is provided on the height-limiting frame (1). A construction platform (5) is provided on the upper part of the height-limiting frame (1).
2. A bed-assist screed device for underwater operations according to claim 1, characterized in that: The height-limiting frame (1) is a cuboid frame.
3. The underwater bed leveling device according to claim 2, characterized in that: The height-limiting frame (1) includes multiple vertical frames (11), a first horizontal frame (12) and a second horizontal frame (13) inserted into the vertical frames (11). Both ends of the vertical frames (11) are fixedly connected to a first connecting pipe (14) for insertion into the first horizontal frame (12). The first connecting pipe (14) has a first mounting hole on its wall and at both ends. Both ends of the vertical frames (11) are fixedly connected to a second connecting pipe (15) for insertion into the second horizontal frame (13). The second connecting pipe (15) has a second mounting hole on its wall and at both ends of the second horizontal frame (13).
4. The underwater bed leveling device according to claim 3, characterized in that: The construction platform includes multiple support rods (51) fixedly connected to the first horizontal frame (12) and the second horizontal frame (13), and a support net (52) fixedly connected to the support rods (51).
5. A bed leveling device for underwater operations according to claim 3, characterized in that: The sleeve (3) is fixedly connected to the vertical frame (11), and the support column (2) is inserted inside the sleeve (3).
6. A bed-leveling auxiliary device for underwater operations according to any one of claims 1 to 5, characterized in that: The limiting mechanism includes a guide chain (4) with its top end connected to the top of the support column (2), and the bottom end of the guide chain (4) is connected to the height limiting frame (1).
7. A bed-leveling auxiliary device for underwater operations according to any one of claims 1 to 5, characterized in that: Both ends of the support column (2) are provided with support plates (21), and the support plates (21) are provided with internal thread holes. The support plates (21) are connected to the support column (2) by threads.