Underwater component reference positioning fixture device
By designing an underwater component reference positioning fixture device, the precise positioning and fine-tuning of underwater components are achieved using a reference positioning unit and an open clamp, solving the problems of inaccurate positioning and component displacement in underwater construction, and improving construction accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI GUCHENG YINLONG ELECTRICAL CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-03
AI Technical Summary
Existing underwater positioning methods cannot make precise adjustments, especially for millimeter-level fine adjustments of larger components, and the lack of temporary fixing devices leads to component displacement during welding, affecting construction accuracy and efficiency.
An underwater component reference positioning fixture device was designed, including a reference positioning unit. It uses a reference frame and an open clamp to achieve temporary fixation. The verticality is adjusted by a plumb line or a level, and it can be spliced to adapt to the positioning of components of different lengths.
It enables precise positioning and fine-tuning of underwater components, improving construction accuracy and efficiency, and avoiding component displacement problems caused by welding.
Smart Images

Figure CN224454266U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underwater component installation, and in particular to an underwater component reference positioning clamp device. Background Technology
[0002] Existing technologies such as levels, theodolites, total stations, laser rulers, and GPS positioning cannot be applied to underwater vertical positioning, which greatly limits the accurate positioning of underwater engineering projects. Traditional underwater positioning methods rely directly on existing structures for positioning, but this cannot avoid continuous deviations caused by the inconsistencies in existing structures.
[0003] Taking the addition of a waterstop steel plate to the gate slot as an example, when the waterstop steel plate is tilted, the adjustment range is difficult to control due to the limitations of the underwater construction environment. Especially for larger components, millimeter-level adjustments can easily lead to over-adjustment or under-adjustment if the force is not accurately controlled, making fine-tuning time-consuming and labor-intensive. Furthermore, due to the lack of temporary fixing devices, the adjusted waterstop steel plate must be fixed to the existing steel plate by welding. The pulling force and internal stress of the steel plate during the welding process can cause new displacement of the waterstop steel plate, resulting in repeated adjustments to the component to be installed. Utility Model Content
[0004] This invention provides an underwater component reference positioning fixture device, which solves the problem of lack of positioning reference and position adjustment device during the installation of underwater components.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an underwater component reference positioning clamp device, including a reference positioning unit, the reference positioning unit including a reference frame, the reference frame having multiple connecting slots along its length, each connecting slot being connected to an open clamp, the open clamp including a U-shaped frame, the two ends of the U-shaped frame respectively having a first sleeve and a second sleeve, the first sleeve having an adjustment shaft, the end of the adjustment shaft having a retractable first clamping seat, the end of the second sleeve having a retractable second clamping seat, and a clamping position biased towards one side of the reference frame being provided between the first clamping seat and the second clamping seat.
[0006] In the preferred embodiment, the reference frame has a U-shaped structure, and the adjusting shaft is provided with two first nuts and two second nuts with threaded connections. The first nuts and second nuts respectively lock the two side walls of the reference frame.
[0007] In the preferred embodiment, the adjusting shaft is threadedly connected to the first sleeve, and the first sleeve on the adjusting shaft is provided with threaded third nuts on both sides, with one end of the third nut abutting against the first sleeve to lock the adjusting shaft.
[0008] In the preferred embodiment, the second clamp is threadedly connected to the second sleeve, and the first clamp is threadedly connected to the adjusting shaft.
[0009] In the preferred embodiment, the reference frame has an outer groove and an inner groove at both ends. The outer groove of the reference frame is inserted into the inner groove of the adjacent reference frame. The outer groove has a light hole, and the inner groove has a threaded hole. The threaded hole and the light hole are aligned. A connecting bolt is also provided. The connecting bolt has a light shaft section and a screw section. The light shaft section is sleeved with the light hole, and the screw section is threadedly connected to the threaded hole.
[0010] In the preferred embodiment, the connecting slot is a U-shaped slot with one end open. The upper and lower sides of the opening end of the connecting slot are respectively provided with a smooth hole sleeve and a screw hole sleeve, and a pin is also provided. The upper end of the pin is provided with a stop handle, the pin passes through the smooth hole sleeve and the lower end is threadedly connected to the screw hole sleeve.
[0011] In the preferred embodiment, the inner side of the U-shaped structure of the reference frame is provided with supporting ribs near each connecting slot.
[0012] The beneficial effects of this utility model are as follows: a long strip-shaped reference frame is installed on the dam body or precast wall slab as a fixed position. The reference frame is equipped with an open clamp to facilitate temporary fixing of the component to be installed. The reference frame is adjusted to be vertical using a plumb line or level as a known vertical reference. The clamping position of the open clamp is adjustable to facilitate adjustment of the verticality of the component to be installed. The reference positioning unit is equipped with a splicing slot structure at both ends, which can be spliced and lengthened to adapt to the positioning of components to be installed of different lengths. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0014] Figure 1 This is a schematic diagram of the device application.
[0015] Figure 2 This is a schematic diagram of a multi-reference positioning unit.
[0016] Figure 3 This is a schematic diagram of the splicing of multiple reference positioning units.
[0017] Figure 4 This is a schematic diagram of the reference positioning unit.
[0018] Figure 5 This is a structural diagram of an open clamp.
[0019] Figure 6 It is a sectional view of the opening clamp.
[0020] Figure 7 This is an enlarged view of the docking point of the reference positioning unit.
[0021] Figure 8 This is a cross-sectional view of the docking point of the reference positioning unit.
[0022] Figure 9 This is a schematic diagram of the anti-detachment structure at the connecting slot.
[0023] In the figure: 1. Reference positioning unit; 2. Reference frame; 201. Connecting slot; 202. Mounting hole; 203. Outer groove; 204. Threaded hole; 205. Smooth hole; 206. Connecting bolt; 207. Smooth shaft section; 208. Screw section; 209. Opening clamp; 3. U-shaped frame; 301. First sleeve; 302. Second sleeve; 303. Adjusting shaft; 304. First clamp; 305. Second clamp; 306. First nut; 307. Second nut; 308. Third nut; 309. Clamping position; 310. Anti-slip groove; 311. Component to be installed; 4. Support rib; 5. Pin; 6. Smooth hole sleeve; 601. Screw hole sleeve; 602. Stop handle; 603. Detailed Implementation
[0024] Example 1:
[0025] like Figure 1-9 A reference positioning fixture device for underwater components includes a reference positioning unit 1. The reference positioning unit 1 includes a reference frame 2. The reference frame 2 has multiple connecting slots 201 along its length. Each connecting slot 201 is connected to an open clamp 3. The open clamp 3 includes a U-shaped frame 301. The two ends of the U-shaped frame 301 are respectively provided with a first sleeve 302 and a second sleeve 303. The first sleeve 302 is provided with an adjustment shaft 304. The end of the adjustment shaft 304 is provided with a retractable first clamp 305. The end of the second sleeve 303 is provided with a retractable second clamp 306. A clamping position 310 biased towards one side of the reference frame 2 is provided between the first clamp 305 and the second clamp 306.
[0026] The reference frame 2 is arranged vertically and can be installed on the underwater dam body or wall using expansion bolts, or temporarily spot-welded onto existing components such as reserved plates or columns of the underwater dam body or wall.
[0027] The open clamp 3 is placed horizontally. The distance between the first clamp 305 and the second clamp 306 can be freely adjusted to expand or shrink the distance between the clamp positions 310 to accommodate different components 4 to be installed. The first clamp 305 and the second clamp 306 can also move in the same direction to change the left and right positions of the clamp positions 310 according to the relative position of the component 4 to be installed from the reference frame 2.
[0028] The U-shaped frame 301 is reinforced with stiffeners on the outside to reduce deformation at the far end of the cantilever.
[0029] The outer walls of the adjusting shaft 304, the first clamp 305, and the second clamp 306 are engraved with scales to facilitate the unified clamping position of the upper and lower opening clamps 310.
[0030] In the preferred embodiment, the reference frame 2 has a U-shaped structure, and the adjusting shaft 304 is provided with two first nuts 307 and two second nuts 308 connected by threads. The first nuts 307 and the second nuts 308 respectively lock the two side walls of the reference frame 2.
[0031] The base frame 2 has multiple mounting holes 202 along its length on the bottom and side walls of its U-shaped structure, which facilitates installation on the reserved mounting parts of the dam or wall.
[0032] A connecting slot 201 is provided on each of the two side walls of the U-shaped structure of the reference frame 2, and two first nuts 307 and two second nuts 308 are respectively clamped and locked at the connecting slot 201.
[0033] In the preferred embodiment, the adjusting shaft 304 is threadedly connected to the first sleeve 302, and the adjusting shaft 304 is provided with a third nut 309 threadedly connected to both sides of the first sleeve 302. One end of the third nut 309 abuts against the first sleeve 302 to lock the adjusting shaft 304.
[0034] After the adjusting shaft 304 is adjusted relative to the first sleeve 302, the two third nuts 309 rotate and press against the first sleeve 302, thereby clamping and locking the adjusting shaft 304. At the same time, the posture of the U-shaped frame 301 can be locked to prevent it from rotating around the adjusting shaft 304.
[0035] In the preferred embodiment, the second clamp 306 is threadedly connected to the second sleeve 303, and the first clamp 305 is threadedly connected to the adjusting shaft 304.
[0036] The adjusting shaft 304 can adjust the lateral position to change the overall position of the clamping position 310. The position of the first seat 302 relative to the adjusting shaft 304 can also be adjusted to change the spacing of the clamping position 310. On this basis, the first clamping seat 305 can be rotated out of the adjusting shaft 304 to perform secondary extension and retraction, further adjusting the opening size of the clamping position 310.
[0037] In the preferred embodiment, the reference frame 2 has an outer slot 203 and an inner slot 204 at both ends. The outer slot 203 of the reference frame 2 is inserted into the inner slot 204 of the adjacent reference frame 2. The outer slot 203 has a light hole 206, and the inner slot 204 has a threaded hole 205. The threaded hole 205 and the light hole 206 are aligned. A connecting bolt 207 is also provided. The connecting bolt 207 has a light axis section 208 and a screw section 209. The light axis section 208 is sleeved with the light hole 206, and the screw section 209 is threadedly connected to the threaded hole 205.
[0038] Adjacent reference frames 2 are assembled by inserting and connecting the outer slot 203 and the inner slot 204, and can be extended. When the component 4 to be installed is long, multiple reference positioning units 1 can be spliced as references.
[0039] In the preferred embodiment, the connecting slot 201 is a U-shaped slot with one end open. The upper and lower sides of the opening end of the connecting slot 201 are respectively provided with a smooth hole sleeve 601 and a screw hole sleeve 602, and a pin 6 is also provided. The upper end of the pin 6 is provided with a stop handle 603. The pin 6 passes through the smooth hole sleeve 601 and its lower end is threadedly connected to the screw hole sleeve 602.
[0040] The stop handle 603 stops at the light hole sleeve 601, and the pin 6 can close the opening end of the connecting slot 201 to prevent the adjusting shaft 304 from coming out.
[0041] In the preferred embodiment, the inner side of the U-shaped structure of the reference frame 2 is provided with a support rib 5 near each connecting slot 201.
[0042] The support rib 5 is located near the connecting slot 201 to prevent deformation of the U-shaped structure of the reference frame 2.
[0043] The first clamp 305 and the second clamp 306 are provided with anti-slip grooves 311 at the ends that contact the component 4 to be installed.
[0044] Similarly, the locking end faces of the first nut 307, the second nut 308, and the third nut 309 are also machined with friction stripes to improve the anti-loosening ability.
[0045] When using, the lateral position of the U-shaped frame 301 can be adjusted first, and then the adjusting shaft 304 can be moved laterally to be close to the component 4 to be installed. Then, the first clamp 305 and the second clamp 306 can be locked.
[0046] Example 2:
[0047] A temporary fixing method for adding a water-stop steel plate to a gate slot: The reference frame 2 of the reference positioning unit 1 is installed on the original water-stop steel plate by bolts or on the gate slot wall by expansion screws. The reference frame 2 is adjusted to be vertical by using a plumb line, a spirit level or the laser line of a level.
[0048] Insert the opening clamp 3 into the connecting slot 201 and tighten the first nut 307 and the second nut 308. After adjusting the lateral position of the U-shaped bracket 301, tighten the third nut 309.
[0049] The new waterstop steel plate is hoisted into place and clamped using clamping positions 310. Since clamping positions 310 are mainly adjusted by various nuts with known pitch, and the adjustment shaft can be marked with scales, small-angle fine adjustments can be achieved. The positions of clamping positions 310 of the upper and lower opening clamps 3 of the reference positioning unit 1 can be adjusted to be uniform according to the scale. The new waterstop steel plate is adjusted to be close to vertical while being clamped.
[0050] Check the verticality of the guide rail with a level or plumb bob. If there is a deviation in verticality, the lateral position of the adjustment clamp 310 can be finely adjusted to make the new waterstop steel plate vertical.
[0051] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.
Claims
1. An underwater structure reference positioning fixture apparatus, characterized by: Including benchmarks The positioning unit (1) includes a reference frame (2). The reference frame (2) has multiple connecting slots (201) along its length. Each connecting slot (201) is connected to an open clamp (3). The open clamp (3) includes a U-shaped frame (301). The two ends of the U-shaped frame (301) are respectively provided with a first sleeve (302) and a second sleeve (303). The first sleeve (302) is provided with an adjusting shaft (304). The end of the adjusting shaft (304) is provided with a retractable first clamp (305). The end of the second sleeve (303) is provided with a retractable second clamp (306). There is a clamping position (310) between the first clamp (305) and the second clamp (306) that is biased towards one side of the reference frame (2).
2. The apparatus of claim 1 wherein: The reference frame (2) has a U-shaped structure. The adjusting shaft (304) is provided with two first nuts (307) and two second nuts (308) connected by threads. The first nuts (307) and the second nuts (308) lock the two side walls of the reference frame (2) respectively.
3. The apparatus of claim 1 wherein: The adjusting shaft (304) is threadedly connected to the first sleeve (302). The first sleeve (302) on the adjusting shaft (304) is provided with a third nut (309) threadedly connected on both sides. One end of the third nut (309) abuts against the first sleeve (302) to lock the adjusting shaft (304).
4. The apparatus of claim 1 wherein: The second clamp (306) is threadedly connected to the second sleeve (303), and the first clamp (305) is threadedly connected to the adjusting shaft (304).
5. The apparatus of claim 1 wherein: The reference frame (2) has an outer groove (203) and an inner groove (204) at both ends. The outer groove (203) of the reference frame (2) is inserted into the inner groove (204) of the adjacent reference frame (2). The outer groove (203) has a light hole (206) and the inner groove (204) has a threaded hole (205). The threaded hole (205) and the light hole (206) are aligned. A connecting bolt (207) is also provided. The connecting bolt (207) has a light shaft section (208) and a screw section (209). The light shaft section (208) is sleeved with the light hole (206), and the screw section (209) is threadedly connected to the threaded hole (205). 6. The apparatus of claim 1 wherein: The connecting slot (201) is a U-shaped slot with one end open. The upper and lower sides of the opening end of the connecting slot (201) are respectively provided with a smooth hole sleeve (601) and a screw hole sleeve (602), and a pin (6) is also provided. The upper end of the pin (6) is provided with a stop handle (603). The pin (6) passes through the smooth hole sleeve (601) and the lower end is threadedly connected to the screw hole sleeve (602).
7. The apparatus of claim 2 wherein: The reference frame (2) has a support rib (5) on the inner side of the U-shaped structure near each connecting slot (201).