Ship target leaning hoisting clamp

Abstract

The ship leaning target hoisting clamp comprises a small leaning target, a first hoisting clamp, a large leaning target and a second hoisting clamp, the first hoisting clamp is used for clamping and fixing the small leaning target, the second hoisting clamp is used for clamping and fixing the large leaning target, and one side face of the small leaning target and one side face of the large leaning target are each provided with a plurality of sets of first side bolt holes; the other side faces of the small leaning target and the large leaning target are each provided with a plurality of sets of second side bolt holes, the small leaning target and the large leaning target each comprise a leaning target opening, and the first hoisting clamp comprises a first base plate. The technical key points are as follows: the hoisting use of the novel tool structure solves the mounting problem of the ship side target, the opening of the target can be aligned with the arc bulge of the ship side in the hoisting process, the alignment is convenient, the mounting time is shortened, all the targets on the two sides can be mounted in place in a short time, the working efficiency is greatly improved, and the labor intensity of workers is reduced. The effect of getting twofold results with half the effort is achieved, and the tool structure can be repeatedly used when similar projects are encountered next time.

Description

Technical Field

[0001] The invention relates to the technical field of target hoisting fixtures, in particular to a ship target hoisting fixture. Background Art

[0002] A dock is a dock-type building used for shipbuilding. It can accommodate ships in and out after being filled with water, and can be used to build ships on a dry bottom after being drained. Docks can be divided into three categories: dry docks, water-filled docks, and floating docks. Dry docks are more commonly used, and the docks generally referred to are dry docks. Docks have evolved from the original "ship pits". On tidal coasts, people use the rise and fall of water levels to raise and lower ships, that is, when the tide is high, the ship is led into a "ship pit" surrounded by earth embankments on three sides. When the tide is low, the ship sits on the pre-placed piers, and then the gap is closed with embankments for repair work. When the ship leaves the pit, the embankments are removed and the pit is left when the tide is high.

[0003] After a certain WJ ship entered the dock for the second time, it was necessary to reinstall the left and starboard targets that were removed during the last docking. However, there were several problems in the reinstallation of the targets: 1. The target installation position is at the arc protrusions on both sides of the ship's side. It can only be lifted to the approximate position by a crane, and then installed at a high place by personnel driving an elevated vehicle; 2. The target needs to be attached to the arc protrusions on both sides of the ship's side, and cannot be lifted by tying with wire ropes; 3. After the target is attached in place, it needs to be fixed with bolts, and fine-tuning is required to align the target with the holes on the hull; 4. Due to the special shape of the target and the center of gravity of the target lifting, the target opening cannot be aligned with the arc protrusion on the ship's side in the air after it is lifted.

[0004] Therefore, it is necessary to design a ship target hoisting fixture to solve the above problems. Summary of the invention

[0005] Technical issues solved: In view of the deficiencies in the prior art, the present invention provides a ship target lifting fixture. The lifting and use of the new tooling structure solves the installation problem of the ship's side target. During the lifting process, the target opening can be aligned with the arc protrusion of the ship's side, which is convenient for alignment and shortens the installation time. All the targets on both sides can be installed in place in a short time, which greatly improves work efficiency and achieves twice the result with half the effort. The tooling structure can also be reused when encountering a similar project next time, which solves the technical problems mentioned in the background technology.

[0006] Technical solution: To achieve the above object, the present invention is implemented through the following technical solutions: A ship target hoisting fixture comprises a small target, a first hoisting fixture, a large target and a second hoisting fixture, wherein the first hoisting fixture is used for clamping and fixing the small target, and the second hoisting fixture is used for clamping and fixing the large target, a plurality of groups of first side bolt holes are provided on one side surface of the small target and the large target, a plurality of groups of second side bolt holes are provided on the other side surfaces of the small target and the large target, and the small target and the large target both comprise target openings, the first hoisting fixture comprises a first base plate, a first fixing screw sleeve is provided at a middle position of the first base plate, a second fixing screw sleeve and a third fixing screw sleeve are provided at both sides of the first base plate, a first fixing screw is threadedly connected to the first fixing screw sleeve, a second fixing screw is threadedly connected to the second fixing screw sleeve, and a third fixing screw is threadedly connected to the third fixing screw sleeve, a first lifting hole is provided on the first base plate, the first lifting hole of the first hoisting fixture is connected to a shackle, the shackle is connected to a wire rope, the wire rope is connected to a crane, and the target is hoisted by the crane.

[0007] In a possible implementation, the first substrate of the first lifting fixture is set to an arc-shaped structure, and the curvature of the first substrate is adapted to the outer contour shape of the small target. When assembling the first lifting fixture, the first lifting fixture is clamped on the outside of the small target, and the first lifting fixture is installed and fixed on the small target by fixing screws.

[0008] In a possible implementation manner, the second fixing screw sleeve and the third fixing screw sleeve are symmetrically distributed with respect to the first fixing screw sleeve.

[0009] In a possible implementation, the first fixing screw sleeve, the second fixing screw sleeve and the third fixing screw sleeve all include screw holes, the first fixing screw passes through the first fixing screw sleeve and is threadedly fixedly connected to the screw hole of the first fixing screw sleeve, the second fixing screw passes through the second fixing screw sleeve and is threadedly fixedly connected to the screw hole of the second fixing screw sleeve, the third fixing screw passes through the third fixing screw sleeve and is threadedly fixedly connected to the screw hole of the third fixing screw sleeve, and manually rotating the fixing screw can adjust the extended position of the fixing screw relative to the fixing screw sleeve.

[0010] In a possible implementation, the first fixing screw, the second fixing screw and the third fixing screw of the first lifting fixture are welded and fixed with a first tightening head at one end close to the small target, and the positions of the three groups of first tightening heads are adjusted respectively by adjusting the three groups of fixing screws.

[0011] In a possible implementation, the first tightening head at one end of the second fixing screw is embedded in the second side bolt hole of the small target, the first tightening head at one end of the third fixing screw is embedded in the first side bolt hole of the small target, and the first tightening head at one end of the first fixing screw is tightly attached to the outer surface of the small target. The clamp cannot be installed too tightly, otherwise the inner opening of the target will become smaller.

[0012] In a possible implementation, the target opening of the small target is adapted to the arc protrusion of the ship's side. When the small target is lifted by a crane, the target opening of the small target is aligned with the arc protrusion of the ship's side to achieve preliminary alignment.

[0013] In a possible implementation, the second lifting fixture includes a second base plate, a fourth fixing screw sleeve is arranged in the middle position of the second base plate, a fifth fixing screw sleeve and a sixth fixing screw sleeve are respectively arranged at both sides of the second base plate, a fourth fixing screw is threadedly connected to the fourth fixing screw sleeve, a fifth fixing screw is threadedly connected to the fifth fixing screw sleeve, and a sixth fixing screw is threadedly connected to the sixth fixing screw sleeve, a second lifting hole is opened on the second base plate, and a second tightening head is welded and fixed at one end of the fourth fixing screw, the fifth fixing screw and the sixth fixing screw. Two types of lifting fixtures are manufactured according to two specifications of target structures, the first lifting fixture is adapted for small targets, and the second lifting fixture is adapted for large targets, so as to realize the lifting of various targets.

[0014] In a possible implementation, the second substrate of the second lifting fixture is configured as an arc structure, the curvature of the second substrate is adapted to the outer contour of the large target, the fourth fixing screw sleeve, the fifth fixing screw sleeve and the sixth fixing screw sleeve all include screw holes, the fourth fixing screw penetrates the fourth fixing screw sleeve and is threadedly fixedly connected to the screw hole of the fourth fixing screw sleeve, the fifth fixing screw penetrates the fifth fixing screw sleeve and is threadedly fixedly connected to the screw hole of the fifth fixing screw sleeve, the sixth fixing screw penetrates the sixth fixing screw sleeve and is threadedly fixedly connected to the screw hole of the sixth fixing screw sleeve, and the positions of the three groups of first tightening heads are adjusted respectively by adjusting the three groups of fixing screws.

[0015] In a possible implementation, the second tightening head at one end of the fifth fixing screw is embedded in the second side bolt hole of the large target, the second tightening head at one end of the sixth fixing screw is embedded in the first side bolt hole of the large target, the second tightening head at one end of the fourth fixing screw is tightly attached to the outer surface of the large target, the second lifting hole of the second lifting fixture is connected to a shackle, the shackle is connected to a wire rope, the wire rope is connected to a crane, and the large target is lifted by the crane.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention solves the installation problem of the ship's side target by hoisting and using the new tooling structure. During the hoisting process, the target opening can be aligned with the arc bulge of the ship's side, which is convenient for alignment and shortens the installation time. All the targets on both sides can be installed in place in a short time, which greatly improves the work efficiency and achieves twice the result with half the effort. The tooling structure can also be reused when encountering a similar project next time.

[0017] 2. The present invention can manufacture a matching lifting fixture according to the specifications and dimensions of the target, so that the curvature of the lifting fixture base plate is adapted to the outer contour of the target, and the position of the fixing screw corresponds to the position of the bolt hole of the target. It is suitable for target structures of different specifications and dimensions, and can realize the lifting of various targets. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0019] FIG1 is a schematic diagram of a small target and a first lifting fixture of the present invention; FIG2 is a second schematic diagram of the tooling of the small target and the first lifting fixture of the present invention; FIG3 is a schematic structural diagram of a first lifting fixture of the present invention; 4 is a schematic diagram of the structure of the first lifting fixture of the present invention after removing the first fixing screw, the second fixing screw and the third fixing screw; FIG5 is a schematic diagram of the top view of the small target of the present invention; FIG6 is a schematic diagram of the structure of the small target of the present invention when viewed from the bottom; Fig. 7 is a cross-sectional view of a small target according to the present invention; FIG8 is a schematic diagram of the assembly of the small target and the first lifting fixture of the present invention; Fig. 9 is a cross-sectional view of a large target according to the present invention; FIG. 10 is a schematic diagram of the assembly of the large target and the second lifting fixture of the present invention.

[0020] In the figure: 1, small target; 2, first lifting fixture; 3, large target; 4, second lifting fixture; 5, shackle; 6, wire rope; 11, first side bolt hole; 12, second side bolt hole; 13, target opening; 21, first base plate; 22, first fixing screw sleeve; 23, second fixing screw sleeve; 24, third fixing screw sleeve; 25, first fixing screw; 26, second fixing screw; 27, third fixing screw; 28, first tightening head; 29, first lifting hole; 41, second base plate; 42, fourth fixing screw sleeve; 43, fifth fixing screw sleeve; 44, sixth fixing screw sleeve; 45, fourth fixing screw; 46, fifth fixing screw; 47, sixth fixing screw; 48, second tightening head; 49, second lifting hole. DETAILED DESCRIPTION

[0021] The embodiment of the present application solves the installation problem of the ship's side target by providing a ship target lifting fixture and lifting use of a new tooling structure. During the lifting process, the target opening can be aligned with the arc protrusion of the ship's side, which facilitates alignment and shortens the installation time. All the targets on both sides can be installed in place in a short time, which greatly improves work efficiency and achieves twice the result with half the effort. The tooling structure can also be reused when encountering a similar project next time, which solves the technical problems mentioned in the background technology.

[0022] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows: Embodiment 1: Please refer to Figures 1-10. The present invention provides a technical solution: a ship target hoisting fixture, including a small target 1, a first hoisting fixture 2, a large target 3, and a second hoisting fixture 4. The first hoisting fixture 2 is used to clamp and fix the small target 1, and the second hoisting fixture 4 is used to clamp and fix the large target 3. A plurality of first side bolt holes 11 are provided on one side of the small target 1 and the large target 3, and a plurality of second side bolt holes 12 are provided on the other side of the small target 1 and the large target 3. The small target 1 and the large target 3 both include a target opening 13. The first hoisting fixture 2 includes a first base plate 21, and the first base plate 22 is provided on the other side of the small target 1 and the large target 3. A first fixing screw sleeve 22 is arranged in the middle position of the plate 21, and a second fixing screw sleeve 23 and a third fixing screw sleeve 24 are arranged on both sides of the first base plate 21 respectively, a first fixing screw 25 is threadedly connected to the first fixing screw sleeve 22, a second fixing screw 26 is threadedly connected to the second fixing screw sleeve 23, and a third fixing screw 27 is threadedly connected to the third fixing screw sleeve 24, a first lifting hole 29 is opened on the first base plate 21, the first lifting hole 29 of the first lifting fixture 2 is connected to the shackle 5, the shackle 5 is connected to the wire rope 6, the wire rope 6 is connected to the crane, and the target is lifted by the crane.

[0023] Among them, when hoisting the small target 1, as shown in Figure 1, two groups of first hoisting clamps 2 are used, and the two groups of first hoisting clamps 2 are clamped on the small target 1 for lifting. The first fixing screw 25, the second fixing screw 26 and the third fixing screw 27 are respectively clamped on the small target 1 in different directions to achieve three-point clamping and fixing of the small target 1. The clamp installation cannot be too tight, otherwise the inner opening of the target will become smaller. After the first hoisting clamp 2 is fixedly installed on the small target 1, the shackle 5 is installed at the first lifting hole 29 of the first substrate 21, and then it is connected with a wire rope 6 before lifting.

[0024] The steel wire rope 6 is connected to the crane. After the crane is lifted, the target opening 13 of the small target 1 is aligned with the arc bulge of the ship's side. The staff drives an overhead truck to adjust the position of the small target 1, and then hoists the small target 1 into place, so that the multiple groups of first side bolt holes 11 and the multiple groups of second side bolt holes 12 of the small target 1 are aligned with the multiple groups of bolt holes of the hull, and four groups of bolts are installed at both ends and the middle of the small target 1 for fixing.

[0025] After the small target 1 is fixed to the arc protrusion on the ship's side, the first lifting fixture 2 is removed, and then the remaining bolts are installed. Then, the remaining small targets 1 are lifted one by one according to the above method to achieve rapid alignment and installation of multiple groups of small targets 1.

[0026] In some examples, the first substrate 21 of the first lifting fixture 2 is configured as an arc-shaped structure, and the curvature of the first substrate 21 is adapted to the outer contour shape of the small target 1 .

[0027] As shown in FIG1 , when assembling the first lifting fixture 2, the first lifting fixture 2 is clamped on the outside of the small target 1, and the first lifting fixture 2 is installed and fixed on the small target 1 by the first fixing screw 25, the second fixing screw 26 and the third fixing screw 27 to achieve the connection between the two.

[0028] In some examples, the second fixing screw sleeve 23 and the third fixing screw sleeve 24 are symmetrically distributed with respect to the first fixing screw sleeve 22 , so that when the first lifting fixture 2 is assembled, three-point clamping and fixing of the small target 1 is achieved.

[0029] In some examples, the first fixed screw sleeve 22, the second fixed screw sleeve 23 and the third fixed screw sleeve 24 all include screw holes, the first fixing screw 25 passes through the first fixed screw sleeve 22 and is threadedly fixedly connected to the screw hole of the first fixed screw sleeve 22, the second fixing screw 26 passes through the second fixed screw sleeve 23 and is threadedly fixedly connected to the screw hole of the second fixed screw sleeve 23, and the third fixing screw 27 passes through the third fixed screw sleeve 24 and is threadedly fixedly connected to the screw hole of the third fixed screw sleeve 24.

[0030] Among them, manually rotating the first fixing screw 25 can adjust the extended position of the first fixing screw 25 relative to the first fixing screw sleeve 22. Similarly, manually rotating the second fixing screw 26 can adjust the extended position of the second fixing screw 26 relative to the second fixing screw sleeve 23. Manually rotating the third fixing screw 27 can adjust the extended position of the third fixing screw 27 relative to the third fixing screw sleeve 24. By adjusting the positions of the first fixing screw 25, the second fixing screw 26 and the third fixing screw 27, the first lifting fixture 2 can be quickly installed and disassembled.

[0031] In some examples, the first fixing screw 25 , the second fixing screw 26 and the third fixing screw 27 of the first lifting fixture 2 are all welded and fixed with a first tightening head 28 at one end close to the small target 1 .

[0032] In some examples, the first tightening head 28 at one end of the second fixing screw 26 is embedded in the second side bolt hole 12 of the small target 1, the first tightening head 28 at one end of the third fixing screw 27 is embedded in the first side bolt hole 11 of the small target 1, and the first tightening head 28 at one end of the first fixing screw 25 is tightly attached to the outer surface of the small target 1.

[0033] When installing and fixing the first lifting fixture 2, the positions of the three groups of first tightening heads 28 are adjusted respectively by adjusting the first fixing screw 25, the second fixing screw 26 and the third fixing screw 27, so that the three groups of first tightening heads 28 are tightly attached to the small target 1, thereby clamping and fixing the small target 1.

[0034] In some examples, the target opening 13 of the small target 1 is adapted to the arc protrusion of the ship's side. When the small target 1 is lifted by a crane, the target opening 13 of the small target 1 is aligned with the arc protrusion of the ship's side to achieve preliminary alignment.

[0035] By adopting the above technical solution: By hoisting and using the new tooling structure, the installation problem of the ship's side target is solved. During the hoisting process, the target opening 13 can be aligned with the arc protrusion of the ship's side, which is convenient for alignment and shortens the installation time. All the targets on both sides can be installed in place in a short time, which greatly improves the work efficiency and achieves twice the result with half the effort. The tooling structure can also be reused when encountering a similar project next time.

[0036] Embodiment 2: Based on Example 1, this example introduces a specific structure of a second lifting fixture 4 in a ship target lifting fixture, wherein the second lifting fixture 4 comprises a second base plate 41, a fourth fixing screw sleeve 42 is arranged in the middle position of the second base plate 41, a fifth fixing screw sleeve 43 and a sixth fixing screw sleeve 44 are arranged on both sides of the second base plate 41, a fourth fixing screw 45 is threadedly connected to the fourth fixing screw sleeve 42, a fifth fixing screw 46 is threadedly connected to the fifth fixing screw sleeve 43, a sixth fixing screw 47 is threadedly connected to the sixth fixing screw sleeve 44, a second lifting hole 49 is opened on the second base plate 41, and a second tightening head 48 is welded and fixed to one end of the fourth fixing screw 45, the fifth fixing screw 46 and the sixth fixing screw 47.

[0037] Among them, two types of lifting fixtures are manufactured according to two specifications of target structures. The first lifting fixture 2 is adapted to the small target 1 , and the second lifting fixture 4 is adapted to the large target 3 .

[0038] When hoisting the large target 3, as shown in Figure 10, two sets of second hoisting clamps 4 are used to clamp the two sets of second hoisting clamps 4 on the large target 3 for hoisting. The fourth fixing screw sleeve 42, the fifth fixing screw sleeve 43 and the sixth fixing screw sleeve 44 are respectively clamped on the large target 3 in different directions to achieve three-point clamping and fixing of the large target 3. After the second hoisting clamp 4 is fixedly installed on the large target 3, the shackle 5 is installed at the second lifting hole 49 of the second base plate 41, and then it is connected with the wire rope 6 before lifting.

[0039] The steel wire rope 6 is connected to the crane. After the crane is lifted, the target opening 13 of the large target 3 is aligned with the arc bulge on the ship's side. The staff drives the overhead crane to adjust the position of the large target 3, and then hoists the large target 3 into place, so that the multiple groups of first side bolt holes 11 and the multiple groups of second side bolt holes 12 of the large target 3 are aligned with the multiple groups of bolt holes of the hull, and four groups of bolts are installed at both ends and the middle of the large target 3 to fix it. After the large target 3 is fixed to the arc bulge on the ship's side, the second hoisting fixture 4 is removed, and then the remaining bolts are installed, and then the remaining large targets 3 are hoisted one by one in the above manner to achieve rapid alignment and installation of multiple groups of large targets 3.

[0040] In some examples, the second substrate 41 of the second lifting fixture 4 is set to an arc structure, the curvature of the second substrate 41 is adapted to the outer contour shape of the large target 3, the fourth fixing screw sleeve 42, the fifth fixing screw sleeve 43 and the sixth fixing screw sleeve 44 all include screw holes, the fourth fixing screw 45 passes through the fourth fixing screw sleeve 42, and is threadedly fixedly connected to the screw hole of the fourth fixing screw sleeve 42, the fifth fixing screw 46 passes through the fifth fixing screw sleeve 43, and is threadedly fixedly connected to the screw hole of the fifth fixing screw sleeve 43, and the sixth fixing screw 47 passes through the sixth fixing screw sleeve 44, and is threadedly fixedly connected to the screw hole of the sixth fixing screw sleeve 44.

[0041] Among them, manually rotating the fourth fixing screw 45 can adjust the extended position of the fourth fixing screw 45 relative to the fourth fixing screw sleeve 42. Similarly, manually rotating the fifth fixing screw 46 can adjust the extended position of the fifth fixing screw 46 relative to the fifth fixing screw sleeve 43. Manually rotating the sixth fixing screw 47 can adjust the extended position of the sixth fixing screw 47 relative to the sixth fixing screw sleeve 44. By adjusting the positions of the fourth fixing screw 45, the fifth fixing screw 46 and the sixth fixing screw 47, quick installation and quick disassembly of the second lifting fixture 4 can be achieved.

[0042] In some examples, the second tightening head 48 at one end of the fifth fixing screw 46 is embedded in the second side bolt hole 12 of the large target 3, the second tightening head 48 at one end of the sixth fixing screw 47 is embedded in the first side bolt hole 11 of the large target 3, the second tightening head 48 at one end of the fourth fixing screw 45 is tightly attached to the outer surface of the large target 3, the second lifting hole 49 of the second lifting fixture 4 is connected to the shackle 5, and the shackle 5 is connected to the wire rope 6.

[0043] When installing and fixing the second lifting fixture 4, the positions of the three groups of second tightening heads 48 are adjusted respectively by adjusting the positions of the fourth fixing screw 45, the fifth fixing screw 46 and the sixth fixing screw 47, so that the three groups of second tightening heads 48 are tightly attached to the large target 3, thereby clamping and fixing the large target 3.

[0044] Among them, a corresponding lifting fixture tooling can be made according to the specifications and dimensions of the target, so that the curvature of the lifting fixture base plate adapts to the outer contour shape of the target, and the position of the fixing screw corresponds to the position of the target bolt hole. It is suitable for target structures of different specifications and dimensions, and can realize the lifting of various targets.

[0045] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A ship target hoisting fixture, comprising a small target (1), a first hoisting fixture (2), a large target (3) and a second hoisting fixture (4), characterized in that: The first lifting fixture (2) is used to clamp and fix the small target (1), and the second lifting fixture (4) is used to clamp and fix the large target (3). A plurality of first side bolt holes (11) are provided on one side of the small target (1) and the large target (3), and a plurality of second side bolt holes (12) are provided on the other side of the small target (1) and the large target (3). The small target (1) and the large target (3) both include a target opening (13). The first lifting fixture (2) includes a first base plate (21), and a first fixing screw sleeve (22) is provided in the middle of the first base plate (21). ), a second fixing screw sleeve (23) and a third fixing screw sleeve (24) are respectively arranged on both sides of the first base plate (21), a first fixing screw (25) is threadedly connected to the first fixing screw sleeve (22), a second fixing screw (26) is threadedly connected to the second fixing screw sleeve (23), and a third fixing screw (27) is threadedly connected to the third fixing screw sleeve (24), a first lifting hole (29) is opened on the first base plate (21), the first lifting hole (29) of the first lifting fixture (2) is connected to a shackle (5), and the shackle (5) is connected to a steel wire rope (6).

2. A ship target hoisting fixture according to claim 1, characterized in that: The first substrate (21) of the first lifting fixture (2) is configured as an arc-shaped structure, and the arc of the first substrate (21) is adapted to the outer contour shape of the small target (1).

3. A ship target hoisting fixture according to claim 1, characterized in that: The second fixing screw sleeve (23) and the third fixing screw sleeve (24) are symmetrically distributed with respect to the first fixing screw sleeve (22).

4. A ship target hoisting fixture according to claim 1, characterized in that: The first fixing screw sleeve (22), the second fixing screw sleeve (23) and the third fixing screw sleeve (24) all include screw holes, the first fixing screw (25) passes through the first fixing screw sleeve (22) and is threadedly fixedly connected to the screw hole of the first fixing screw sleeve (22), the second fixing screw (26) passes through the second fixing screw sleeve (23) and is threadedly fixedly connected to the screw hole of the second fixing screw sleeve (23), and the third fixing screw (27) passes through the third fixing screw sleeve (24) and is threadedly fixedly connected to the screw hole of the third fixing screw sleeve (24).

5. A ship target hoisting fixture according to claim 1, characterized in that: The first fixing screw (25), the second fixing screw (26) and the third fixing screw (27) of the first lifting fixture (2) are all welded and fixed with a first tightening head (28) at one end close to the small target (1).

6. A ship target hoisting fixture according to claim 5, characterized in that: The first tightening head (28) at one end of the second fixing screw (26) is embedded in the second side bolt hole (12) of the small target (1), the first tightening head (28) at one end of the third fixing screw (27) is embedded in the first side bolt hole (11) of the small target (1), and the first tightening head (28) at one end of the first fixing screw (25) is tightly attached to the outer surface of the small target (1).

7. A ship target hoisting fixture according to claim 1, characterized in that: The target opening (13) of the small target (1) is adapted to fit the arc protrusion of the ship's side.

8. The ship target hoisting fixture according to claim 1, characterized in that: The second lifting fixture (4) comprises a second base plate (41), a fourth fixing screw sleeve (42) is arranged in the middle position of the second base plate (41), a fifth fixing screw sleeve (43) and a sixth fixing screw sleeve (44) are arranged on both sides of the second base plate (41), a fourth fixing screw (45) is threadedly connected to the fourth fixing screw sleeve (42), a fifth fixing screw (46) is threadedly connected to the fifth fixing screw sleeve (43), and a sixth fixing screw (47) is threadedly connected to the sixth fixing screw sleeve (44), a second lifting hole (49) is opened on the second base plate (41), and a second tightening head (48) is welded and fixed to one end of the fourth fixing screw (45), the fifth fixing screw (46) and the sixth fixing screw (47).

9. A ship target hoisting fixture according to claim 8, characterized in that: The second base plate (41) of the second lifting fixture (4) is configured as an arc-shaped structure, the arc of the second base plate (41) is adapted to the outer contour of the large target (3), the fourth fixing screw sleeve (42), the fifth fixing screw sleeve (43) and the sixth fixing screw sleeve (44) all include screw holes, the fourth fixing screw (45) passes through the fourth fixing screw sleeve (42) and is threadedly fixedly connected to the screw hole of the fourth fixing screw sleeve (42), the fifth fixing screw (46) passes through the fifth fixing screw sleeve (43) and is threadedly fixedly connected to the screw hole of the fifth fixing screw sleeve (43), and the sixth fixing screw (47) passes through the sixth fixing screw sleeve (44) and is threadedly fixedly connected to the screw hole of the sixth fixing screw sleeve (44).

10. A ship target hoisting fixture according to claim 9, characterized in that: The second tightening head (48) at one end of the fifth fixing screw (46) is embedded in the second side bolt hole (12) of the large target (3), the second tightening head (48) at one end of the sixth fixing screw (47) is embedded in the first side bolt hole (11) of the large target (3), the second tightening head (48) at one end of the fourth fixing screw (45) is closely attached to the outer surface of the large target (3), the second lifting hole (49) of the second lifting fixture (4) is connected to the shackle (5), and the shackle (5) is connected to the wire rope (6).

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