Safety self-locking device for marine hydraulic watertight sliding door
By designing automatic locking and removable mechanisms, the problems of inconvenience and difficulty in disassembly locking of marine hydraulic watertight sliding doors are solved, automatic locking and rapid disassembly are achieved, and the convenience and efficiency of use are improved.
Patent Information
- Application Number
- CN202421683272.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The existing marine hydraulic watertight sliding doors require manual operation during locking, and are difficult to disassemble when damaged, which consumes human resources.
A safe self-locking device including an automatic locking mechanism and a removable pulling mechanism is designed. The automatic locking mechanism consists of a motor case, a rotating motor, a hydraulic telescopic rod, a telescopic rod, a telescopic spring, a hook tongue and a fixing plate for automatic locking; the removable pulling mechanism consists of a U-shaped support frame, a screw hole, a fixing bolt, a connecting rod and a pulling handle for rapid removal.
The automatic locking of hydraulic watertight sliding doors is realized, reducing the inconvenience of manual operation, and can be quickly disassembled when damaged, saving human resources.
Smart Images

Figure CN223048593U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of marine hydraulic watertight sliding doors, in particular to a safety self-locking device for marine hydraulic watertight sliding doors. Background Art
[0002] A watertight door refers to an impermeable metal door installed on the watertight bulkheads and bulkheads inside a ship, which is mainly divided into two categories: watertight hinge doors and watertight sliding doors. A marine hydraulic watertight sliding door is a door with watertightness installed on the watertight bulkhead.
[0003] The existing marine hydraulic watertight sliding doors have the following disadvantages:
[0004] 1. When the existing marine hydraulic watertight sliding doors are in use, they need to be locked. However, most of the existing door locks are manually operated, which is not very convenient during use.
[0005] 2. When the existing marine hydraulic watertight sliding doors are damaged, they are not easy to disassemble, which is labor-consuming when maintenance is required. Content of the Utility Model
[0006] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a safety self-locking device for marine hydraulic watertight sliding doors.
[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0008] A safety self-locking device for marine hydraulic watertight sliding doors includes a housing, and an automatic locking mechanism and a detachable pulling mechanism are installed on the housing.
[0009] The automatic locking mechanism includes a motor box, a rotating motor, a hydraulic telescopic rod, a telescopic rod, a telescopic spring, a hook tongue and a fixing plate. One side of the rotating motor is welded to the inner wall of one side of the motor box. The bottom of the hydraulic telescopic rod is fixedly connected to the output shaft on the other side of the rotating motor through a connecting shaft. The top of the hydraulic telescopic rod is embedded in one side of the hook tongue. The inner wall of the telescopic spring is sleeved on the outer wall of the telescopic rod. A rotating groove is formed in the middle of the fixing plate.
[0010] Through the above scheme, by installing the automatic locking mechanism, the settings and connections of the motor box, rotating motor, hydraulic telescopic rod, telescopic rod, telescopic spring, hook tongue and fixing plate can automatically lock the marine hydraulic watertight sliding door when it is closed, providing certain convenience for users.
[0011] Preferably, the detachable pulling mechanism includes a U-shaped support frame, a screw hole, a fixing bolt, a connecting rod and a pulling handle. The bottom of the connecting rod is welded to the top surface of the U-shaped support frame. The pulling handle is clamped to the top of the connecting rod.
[0012] With the above solution, a detachable pulling mechanism is installed. The connection settings of the U-shaped support frame, screw holes, fixing bolts, connecting rods, and pulling handles can quickly disassemble the door lock when it is damaged inside, thus reducing the disassembly time and, to a certain extent, reducing the consumption of human resources.
[0013] Preferably, a plurality of screw holes are provided at both ends of the U-shaped support frame, the fixing bolts are screwed onto the screw holes, fixing grooves are provided on both sides of the housing, and both ends of the U-shaped support frame are fixedly connected by the fixing bolts.
[0014] Preferably, one end of the telescopic rod and the telescopic spring is fixedly connected to the outer wall of the side surface of the fixing plate, and both ends of one side of the hook tongue are respectively connected to the other ends of the telescopic rod and the telescopic spring.
[0015] Preferably, the motor box is fixedly placed in the middle of the surface of the housing, and the bottom of the fixing plate is welded to one side surface of the housing.
[0016] Preferably, insertion rods are welded to both ends of the housing.
[0017] The beneficial effects of the present utility model are as follows:
[0018] 1. By installing an automatic locking mechanism, the connection settings of the motor box, rotating motor, hydraulic telescopic rod, telescopic rod, telescopic spring, hook tongue, and fixing plate can perform automatic locking during the closing of the marine hydraulic watertight sliding door, providing certain convenience for users;
[0019] 2. By installing a detachable pulling mechanism, the connection settings of the U-shaped support frame, screw holes, fixing bolts, connecting rods, and pulling handles can quickly disassemble the door lock when it is damaged inside, thus reducing the disassembly time and, to a certain extent, reducing the consumption of human resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic structural diagram of a marine hydraulic watertight sliding door safety self-locking device proposed by the present utility model;
[0021] Figure 2 It is a schematic structural diagram of the automatic locking mechanism of a marine hydraulic watertight sliding door safety self-locking device proposed by the present utility model;
[0022] Figure 3 It is a top view of the structure of the detachable pulling mechanism of a marine hydraulic watertight sliding door safety self-locking device proposed by the present utility model.
[0023] In the figure: 1. Housing; 2. Insert rod; 3. U-shaped support frame; 4. Screw hole; 5. Fixed bolt; 6. Connecting rod; 7. Pulling handle; 8. Motor box; 9. Rotating motor; 10. Hydraulic telescopic rod; 11. Telescopic rod; 12. Telescopic spring; 13. Hook tongue; 14. Fixed plate. Specific implementation mode
[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0025] Example 1, refer to Figure 1 and Figure 2 , a marine hydraulic watertight sliding door safety self-locking device, including a housing 1, on which an automatic locking mechanism and a detachable pulling mechanism are installed;
[0026] The automatic locking mechanism includes a motor box 8, a rotating motor 9, a hydraulic telescopic rod 10, a telescopic rod 11, a telescopic spring 12, a hook tongue 13 and a fixed plate 14. One side of the rotating motor 9 is welded to the inner wall of one side of the motor box 8. The bottom of the hydraulic telescopic rod 10 is fixedly connected to the output shaft on the other side of the rotating motor 9 through a connecting shaft. The top of the hydraulic telescopic rod 10 is embedded in the inner part of one side of the hook tongue 13. The inner wall of the telescopic spring 12 is sleeved on the outer wall of the telescopic rod 11. A rotating groove is opened in the middle of the fixed plate 14. By installing the automatic locking mechanism, the connection settings of the motor box 8, the rotating motor 9, the hydraulic telescopic rod 10, the telescopic rod 11, the telescopic spring 12, the hook tongue 13 and the fixed plate 14 can perform automatic locking during the closing of the marine hydraulic watertight sliding door, providing certain convenience for users.
[0027] Example 2, refer to Figure 1 and Figure 3 , the detachable pulling mechanism includes a U-shaped support frame 3, a screw hole 4, a fixed bolt 5, a connecting rod 6 and a pulling handle 7. The bottom of the connecting rod 6 is welded to the top surface of the U-shaped support frame 3. The pulling handle 7 is clamped to the top of the connecting rod 6. By installing the detachable pulling mechanism, the connection settings of the U-shaped support frame 3, the screw hole 4, the fixed bolt 5, the connecting rod 6 and the pulling handle 7 can quickly perform disassembly when the inside of the door lock is damaged, thereby reducing the disassembly time and reducing the consumption of human resources to a certain extent.
[0028] Example 3, refer to Figure 2 and Figure 3, multiple screw holes 4 are provided at both ends of the U-shaped support frame 3, the fixing bolts 5 are screwed onto the screw holes 4, fixing grooves are provided on both sides of the housing 1, and both ends of the U-shaped support frame 3 are fixedly connected through the fixing bolts 5. One ends of the telescopic rod 11 and the telescopic spring 12 are fixedly connected to the outer wall of the side surface of the fixing plate 14, and both ends of one side of the hook tongue 13 are respectively connected to the other ends of the telescopic rod 11 and the telescopic spring 12. The motor box 8 is fixedly placed in the middle of the surface of the housing 1, the bottom of the fixing plate 14 is welded to one side surface of the housing 1, and insertion rods 2 are welded to both ends of the housing 1.
[0029] Working principle: By installing an automatic locking mechanism, the settings and connections of the motor box 8, the rotating motor 9, the hydraulic telescopic rod 10, the telescopic rod 11, the telescopic spring 12, the hook tongue 13 and the fixing plate 14 can perform automatic locking during the closing of the marine hydraulic watertight sliding door, providing certain convenience for users; by installing a detachable pulling mechanism, the connections of the U-shaped support frame 3, the screw holes 4, the fixing bolts 5, the connecting rod 6 and the pulling handle 7 can quickly perform disassembly when the inside of the door lock is damaged, thereby reducing the disassembly time and reducing the consumption of human resources to a certain extent.
[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.
Claims
1. A marine hydraulic watertight sliding door safety self-locking device, comprising a housing (1), characterized in that: An automatic locking mechanism and a detachable pulling mechanism are installed on the housing (1); The automatic locking mechanism comprises a motor box (8), a rotating motor (9), a hydraulic telescopic rod (10), a telescopic rod (11), a telescopic spring (12), a hook tongue (13) and a fixed plate (14); one side of the rotating motor (9) is welded to an inner wall of one side of the motor box (8); the bottom of the hydraulic telescopic rod (10) is fixedly connected to an output shaft of the other side of the rotating motor (9) via a connecting shaft; the top of the hydraulic telescopic rod (10) is embedded in an inner side of the hook tongue (13); the inner wall of the telescopic spring (12) is sleeved on the outer wall of the telescopic rod (11); and a rotating groove is provided in the middle of the fixed plate (14).
2. A marine hydraulic watertight sliding door safety self-locking device according to claim 1, characterized in that: The detachable pulling mechanism comprises a U-shaped support frame (3), a screw hole (4), a fixing bolt (5), a connecting rod (6) and a pulling handle (7); the bottom of the connecting rod (6) is welded to the top surface of the U-shaped support frame (3), and the pulling handle (7) is clamped on the top of the connecting rod (6).
3. A marine hydraulic watertight sliding door safety self-locking device according to claim 2, characterized in that: Both ends of the U-shaped support frame (3) are provided with a plurality of screw holes (4), and the fixing bolts (5) are screwed onto the screw holes (4). Both sides of the shell (1) are provided with fixing grooves, and the two ends of the U-shaped support frame (3) are fixedly connected by the fixing bolts (5).
4. A marine hydraulic watertight sliding door safety self-locking device according to claim 1, characterized in that: One end of the telescopic rod (11) and the telescopic spring (12) is fixedly connected to the side outer wall of the fixed plate (14), and two ends of one side of the hook tongue (13) are respectively connected to the other end of the telescopic rod (11) and the telescopic spring (12).
5. A marine hydraulic watertight sliding door safety self-locking device according to claim 1, characterized in that: The motor box (8) is fixedly placed in the middle of the surface of the shell (1), and the bottom of the fixing plate (14) is welded to a side surface of the shell (1).
6. A marine hydraulic watertight sliding door safety self-locking device according to claim 1, characterized in that: Insertion rods (2) are welded to both ends of the shell (1).