Lateral orientation positioning structure for hull closure
By combining telescopic cylinder one and telescopic cylinder two with a prompting component, the inaccuracy of insertion of the hull closing device during lateral positioning is solved, achieving automated locking and fixing, and improving positioning accuracy and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HANTONG SHIP HEAVY IND
- Filing Date
- 2025-07-31
- Publication Date
- 2026-05-26
AI Technical Summary
When the existing hull joining device is positioned laterally, line-of-sight issues cause inaccurate insertion of the positioning pin, resulting in problems such as not being inserted in place or being inserted too much, which affects the positioning accuracy.
The system employs a combination of telescopic cylinder one and telescopic cylinder two. By squeezing the telescopic end of telescopic cylinder one, the telescopic end of telescopic cylinder two is automatically inserted into the positioning hole on the positioning pin. Combined with the prompting component, an audible prompt is emitted, thus achieving automated locking and fixing.
It achieves automated locking and fixing of the positioning pin, improves positioning accuracy and operational efficiency, and solves the problem of inaccurate insertion due to line-of-sight issues.
Smart Images

Figure CN224277514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a positioning structure, and in particular to a lateral positioning structure for hull assembly applied in the field of shipbuilding. Background Technology
[0002] Currently, due to the length limitations of dry docks, large ships are often built in two or three sections, and then assembled in floating docks or off-site dry docks. When the hull sections are assembled in the dry dock, auxiliary docking devices are needed to facilitate the assembly and docking of the hull.
[0003] Chinese utility model patent CN201820779127.1 discloses an auxiliary device for hull section assembly, comprising: a positioning cylinder, a positioning pin inserted into a hole in the positioning cylinder, and a pin base fixedly connected to one side of the positioning pin. Several first reinforcing ribs are fixedly connected to the pin base; several second reinforcing ribs and the cylinder base are fixedly connected to the positioning cylinder. This utility model not only enables rapid assembly of hull sections, solving the deformation problem during the assembly process and ensuring the docking accuracy of the hull sections, but also greatly improves the assembly quality and efficiency of the hull sections.
[0004] When the aforementioned device is used, if it is installed on the side of the hull for positioning, the operator cannot observe whether it is inserted in place in time due to the limited line of sight. This may result in the device stopping due to incomplete insertion or over-insertion, affecting the accuracy of positioning. Utility Model Content
[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is how to quickly insert the positioning pin into the positioning cylinder.
[0006] To solve the above problems, this utility model provides a lateral positioning structure for hull assembly, including a first mounting base and a second mounting base. The first mounting base has a slot, and the second mounting base is fixedly connected with a positioning pin that matches the slot. It also includes:
[0007] Telescopic cylinder one is fixedly connected inside the slot, with the telescopic end of telescopic cylinder one facing the insertion end of the slot;
[0008] Multiple sets of telescopic cylinders are fixedly connected in a ring on the mounting base. The telescopic ends of the telescopic cylinders penetrate the mounting base, and the air inlet of the telescopic cylinders is connected to the air outlet of the telescopic cylinders.
[0009] Multiple positioning ports are set on the positioning pin. By inserting the positioning pin into the slot, the positioning pin will squeeze the telescopic end of the telescopic cylinder one after it reaches the insertion limit, thereby allowing the air intake of the telescopic cylinder one to be injected into the telescopic cylinder two. The telescopic end of the telescopic cylinder two will extend and then be inserted into the positioning port on the positioning pin, thus completing the locking and fixing of the positioning pin.
[0010] The prompting component is fixedly connected to mounting base one and is used to emit sound.
[0011] In the aforementioned lateral positioning structure for hull assembly, the positioning pin can be locked and fixed by squeezing the first telescopic cylinder and then by the second telescopic cylinder, thus achieving automated locking and fixing.
[0012] As a further improvement of this application, the prompting component includes a cylinder, a piston plate, and an air horn. The cylinder is fixedly connected to the mounting base, and the piston plate is slidably connected to the cylinder. By moving the piston plate, the gas in the cylinder can be compressed. The air horn is fixedly connected to the cylinder. By moving the piston plate, the gas in the cylinder can be compressed, thereby causing the gas to be quickly discharged through the air horn, which then emits a sound to serve as a prompt.
[0013] As a further improvement of this application, an air inlet pipe is connected to the air inlet end of the telescopic cylinder one, and an air outlet pipe is connected to the air outlet end of the telescopic cylinder one. The air outlet pipe is connected to the telescopic cylinder two, and a one-way valve is fixedly connected inside both the air inlet pipe and the air outlet pipe.
[0014] As a further improvement of this application, a pressure relief port is provided on the air outlet end of the telescopic cylinder 2, and a solenoid valve is installed inside the pressure relief port.
[0015] As another improvement of this application, an auxiliary pipe is connected to the exhaust pipe. The auxiliary pipe is connected to the cylinder body, and gas is introduced through the auxiliary pipe, thereby causing the piston plate to slide in the cylinder body.
[0016] As a further improvement to this application, a pressure plate is fixedly connected to the telescopic end of the telescopic cylinder.
[0017] In summary, this device, through the arrangement of telescopic cylinder one and telescopic cylinder two, when the positioning pin is inserted into the slot, will compress the telescopic end of telescopic cylinder one, thereby causing telescopic cylinder two to extend. The telescopic end of telescopic cylinder two will automatically insert into the positioning port, stopping the movement of the positioning pin and realizing automatic positioning of the positioning pin. Attached Figure Description
[0018] Figure 1 This is a perspective view of the first embodiment of this application;
[0019] Figure 2 This is a side view of the first embodiment of the present application. Figure 1 ;
[0020] Figure 3 for Figure 2 A schematic diagram of the structure of part A;
[0021] Figure 4 This is a side view of the first embodiment of the present application. Figure 2 ;
[0022] Figure 5 This is a side view of the first embodiment of the present application. Figure 3 .
[0023] Explanation of the labels in the diagram:
[0024] 1. Mounting base one; 2. Mounting base two; 3. Positioning pin; 301. Positioning port; 4. Telescopic cylinder one; 401. Air inlet pipe; 402. Air outlet pipe; 403. Auxiliary pipe; 404. Pressure plate; 5. Telescopic cylinder two; 501. Pressure relief port; 601. Cylinder body; 602. Piston plate; 603. Air horn. Detailed Implementation
[0025] The following describes one embodiment of this application in detail with reference to the accompanying drawings.
[0026] First implementation method:
[0027] Figures 1-2 This diagram illustrates a lateral positioning structure for hull assembly, including a mounting base 1 and a mounting base 2. Mounting base 1 has a slot, and mounting base 2 has a positioning pin 3 fixedly connected to the slot. The structure also includes:
[0028] Telescopic cylinder 4 is fixedly connected inside the slot, with the telescopic end of telescopic cylinder 4 facing the insertion end of the slot;
[0029] Multiple sets of telescopic cylinders 25 are fixedly connected in a ring on mounting base 1. The telescopic end of telescopic cylinder 25 passes through mounting base 1, and the air inlet of telescopic cylinder 25 is connected to the air outlet of telescopic cylinder 4.
[0030] Multiple positioning ports 301 are set on the positioning pin 3. By inserting the positioning pin 3 into the slot, after the positioning pin 3 reaches the insertion limit, it will squeeze the telescopic end of the telescopic cylinder 4, thereby allowing the air intake of the telescopic cylinder 4 to be injected into the telescopic cylinder 5. The telescopic end in the telescopic cylinder 5 will extend and then be inserted into the positioning port 301 on the positioning pin 3, thus completing the locking and fixing of the positioning pin 3.
[0031] The prompting component is fixedly connected to mounting base 1 and is used to emit sound.
[0032] Combination Figure 3 As shown, the prompting component includes a cylinder 601, a piston plate 602, and an air horn 603. The cylinder 601 is fixedly connected to the mounting base 1. The piston plate 602 is slidably connected inside the cylinder 601. By moving the piston plate 602, the gas inside the cylinder 601 can be compressed. The air horn 603 is fixedly connected to the cylinder 601. By moving the piston plate 602, the gas inside the cylinder 601 can be compressed, thereby causing the gas to be quickly discharged through the air horn 603. The air horn 603 then emits a sound, serving as a prompt.
[0033] An air inlet pipe 401 is connected to the air inlet end of telescopic cylinder 4, and an air outlet pipe 402 is connected to the air outlet end of telescopic cylinder 4. The air outlet pipe 402 is connected to telescopic cylinder 5. A one-way valve is fixedly connected inside both the air inlet pipe 401 and the air outlet pipe 402. The flow direction of the one-way valve in the air inlet pipe 401 is to flow from the outside to the inside of the air inlet pipe 401. The one-way valve in the air outlet pipe 402 is located close to the air inlet pipe 401, allowing gas in the air inlet pipe 401 to enter the air outlet pipe 402. Gas in the air outlet pipe 402 does not easily flow into the air inlet pipe 401 through the one-way valve.
[0034] The air outlet of the telescopic cylinder 25 is provided with a pressure relief port 501, and a solenoid valve is installed inside the pressure relief port 501.
[0035] An auxiliary pipe 403 is connected to the exhaust pipe 402. The auxiliary pipe 403 is connected to the cylinder 601. Gas enters through the auxiliary pipe 403, which in turn causes the piston plate 602 to slide inside the cylinder 601.
[0036] A pressure plate 404 is fixedly connected to the telescopic end of the telescopic cylinder 4.
[0037] Specifically, both telescopic cylinder 4 and telescopic cylinder 5 are equipped with a reset spring to facilitate the reset of the telescopic end. The spring in telescopic cylinder 4 is a compression spring, and the spring in telescopic cylinder 5 is a tension spring.
[0038] Combination Figure 4 and Figure 5 As shown, before the positioning operation begins, mounting base 1 and mounting base 2 are installed on the hull to be docked, and the two are horizontal and located on the same axis. The telescopic end of telescopic cylinder 4 extends out, the telescopic end of telescopic cylinder 5 retracts, the piston plate 602 is in the initial position of cylinder 601, and the solenoid valve in the pressure relief port 501 at the air outlet of telescopic cylinder 5 is closed.
[0039] When in use, align the positioning pin 3 on mounting base 2 with the slot of mounting base 1 and insert it. When the positioning pin 3 is inserted, it squeezes the pressure plate 404, that is, squeezes the telescopic end of telescopic cylinder 4, which compresses the gas in telescopic cylinder 4. The gas is discharged through the air outlet pipe 402 and first flows to the cylinder body 601 through the auxiliary pipe 403 on the air outlet pipe 402, pushing the piston plate 602 to slide in the cylinder body 601. The gas in the cylinder body 601 is squeezed and quickly discharged through the air horn 603. The air horn 603 sounds to indicate to the engineers that the docking process is in progress.
[0040] Meanwhile, due to the limited airflow of the air horn 603, excess gas in the air outlet pipe 402 will flow to multiple sets of telescopic cylinders 5. Through air pressure, the telescopic ends of the telescopic cylinders 5 will extend and insert into the positioning port 301 on the positioning pin 3, thus locking and fixing the positioning pin 3. It should be noted that those skilled in the art must properly set the position and stroke of the telescopic cylinders 5. After the gas enters the telescopic cylinders 5 and extends them, the positioning port 301 should not yet reach the position of the telescopic cylinders 5. Figure 5 As shown, the telescopic end of the telescopic cylinder 2 5 is blocked by the surface of the positioning pin 3. Then the positioning pin 3 continues to move, and gas continues to enter the telescopic cylinder 2 5. The gas in the telescopic cylinder 2 5 is in a compressed state. When the positioning port 301 reaches the lower side of the telescopic cylinder 2 5, under the action of air pressure, the telescopic end of the telescopic cylinder 2 5 is directly inserted into the positioning port 301, realizing the automatic positioning of the positioning pin 3.
[0041] To release the positioning, open the solenoid valve in the air relief port 501 of the second telescopic cylinder 5 to release the gas in the second telescopic cylinder 5, so that the telescopic cylinder 5 can automatically retract its telescopic end. Alternatively, an external tool, such as a slender rod-shaped structure, can be inserted into the air horn 603 and the cylinder 601 to push the piston plate 602 to the bottom area of the cylinder 601.
[0042] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.
Claims
1. A side direction positioning structure for hull closing, comprising a mounting seat one (1) and a mounting seat two (2), the mounting seat one (1) has a slot, the mounting seat two (2) is fixedly connected with a positioning pin (3) matched with the slot, characterized in that, Also includes: Telescopic cylinder 1 (4) is fixedly connected in the slot, with the telescopic end of the telescopic cylinder 1 (4) facing the insertion end of the slot; Multiple sets of telescopic cylinders (5) are fixedly connected in a ring to the mounting base (1). The telescopic end of the telescopic cylinder (5) passes through the mounting base (1), and the air inlet of the telescopic cylinder (5) is connected to the air outlet of the telescopic cylinder (4). Multiple positioning ports (301) are set on the positioning pin (3). By inserting the positioning pin (3) into the slot, after the positioning pin (3) reaches the insertion limit, it will squeeze the telescopic end of the telescopic cylinder one (4), thereby causing the air intake of the telescopic cylinder one (4) to be injected into the telescopic cylinder two (5). The telescopic end in the telescopic cylinder two (5) will be extended and then inserted into the positioning port (301) on the positioning pin (3), thus completing the locking and fixing of the positioning pin (3). A prompting component is fixedly connected to the mounting base (1) and is used to emit a sound.
2. The lateral positioning structure for hull assembly according to claim 1, characterized in that: The prompting component includes a cylinder (601), a piston plate (602), and an air horn (603). The cylinder (601) is fixedly connected to the mounting base (1). The piston plate (602) is slidably connected inside the cylinder (601). By moving the piston plate (602), the gas inside the cylinder (601) can be squeezed. The air horn (603) is fixedly connected to the cylinder (601).
3. The lateral positioning structure for hull assembly according to claim 2, characterized in that: An air inlet pipe (401) is connected to the air inlet end of the telescopic cylinder one (4), and an air outlet pipe (402) is connected to the air outlet end of the telescopic cylinder one (4). The air outlet pipe (402) is connected to the telescopic cylinder two (5). A one-way valve is fixedly connected inside both the air inlet pipe (401) and the air outlet pipe (402).
4. The lateral positioning structure for hull assembly according to claim 1, characterized in that: The second telescopic cylinder (5) is provided with a pressure relief port (501) at its air outlet, and a solenoid valve is provided inside the pressure relief port (501).
5. A lateral positioning structure for hull assembly according to claim 3, characterized in that: An auxiliary pipe (403) is connected to the exhaust pipe (402). The auxiliary pipe (403) is connected to the cylinder body (601). Gas enters through the auxiliary pipe (403), thereby causing the piston plate (602) to slide inside the cylinder body (601).
6. The lateral positioning structure for hull assembly according to claim 1, characterized in that: A pressure plate (404) is fixedly connected to the telescopic end of the telescopic cylinder (4).