Limiting and buffering device for diving bell
By designing a diving bell limit buffer device with buffer airbags and mechanical limit structures in the diving bell lifting system, the problem of inertial collision during the diving bell is solved, the equipment stability and personnel safety are improved, and the modular design is advantageous.
Patent Information
- Application Number
- CN202421979376.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The collision caused by inertia during the lifting process may cause equipment damage and safety risks for divers.
A diving clock limit buffer device is designed, including a buffer airbag and a mechanical limit structure, and is installed in a diving clock suspension system to buffer the inertial impact of the diving clock when it rises.
It effectively avoids collision with the recycling system during lifting, ensures the stability of the diving clock, and improves the sense of security of diving personnel. Due to the modular design, it is suitable for other saturated diving systems, reducing repeated designs and improving product delivery speed.
Smart Images
Figure CN222946985U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of diving equipment, in particular to a diving bell limit buffer device. Background Art
[0002] Commercial diving is divided into air diving, mixed gas diving and saturation diving. The first two have simple equipment, but long decompression time and low operating efficiency. Saturation diving is a diving method suitable for long-term operations under deep conditions.
[0003] The principle of saturation diving: When a diver stays at a certain depth underwater or in a high-pressure environment equivalent to the ambient pressure at that depth, the neutral mixed gas (helium and nitrogen) in the breathing gas will gradually dissolve into the human tissue. If the stay time is long enough (more than 24 hours), the partial pressure of the neutral gas in the human tissue will reach a state of equilibrium with the partial pressure of the neutral gas in the breathing gas (complete saturation). In this case, no matter how long the diver stays at this depth, the neutral gas in the human tissue will not increase, and the decompression time will not increase due to the extension of the stay (diving) time. Therefore, the diving operation time is greatly extended when the decompression time remains basically unchanged. In this way, the diver can stay underwater for a long time until the underwater operation task is finally completed, and then return to the surface (normal pressure) for a one-time inspection.
[0004] Advantages of saturation diving:
[0005] (1) Greatly expanded diving depth and time
[0006] Saturation diving has greatly expanded the depth of diving and extended the diving operation time, which is theoretically unlimited. Saturation diving is also the latest achievement in the development of diving technology in the world.
[0007] (2) Greatly improved diving operation efficiency
[0008] Saturation diving not only has advantages in operating at great depths, but also has diving operation efficiency that cannot be achieved by conventional diving.
[0009] Since saturation diving greatly expands the diving depth and increases the diving operation time, thus greatly improving the diving operation efficiency, developed countries have widely adopted saturation diving technology in deep underwater rescue and salvage operations.
[0010] In the saturation diving system, the diving bell lowering and recovery system (LARS) is an important component of the saturation diving system. When the diving bell rises to the limit position, due to inertia, a buffer device needs to be designed to reduce the damage to the system caused by the impact of the equipment when the diving bell is lowered. Summary of the invention
[0011] The technical problem to be solved by the utility model is to provide a diving bell limiting buffer device, which is installed in a diving bell suspended in a recovery system and is used for limiting and buffering when the diving bell is recovered.
[0012] In order to solve the above technical problems, the technical solution adopted by the utility model is: a diving bell limit buffer device, including a buffer device and a steel pipe frame, the buffer device includes a buffer airbag and a mechanical limit structure, the mechanical limit structure is arranged next to the buffer airbag; the steel pipe frame, the four corners of the steel pipe frame are provided with support plates, and the buffer device is arranged on the support plates.
[0013] Preferably, the mechanical limiting structure comprises a column, a sleeve and an air spring, the air spring is arranged on the top of the column, and the sleeve is sleeved on the column to cover the air spring.
[0014] Preferably, the steel tube frame includes two long cross bars and two short vertical bars, the two short vertical bars are vertically arranged between the two long cross bars, and support plates are arranged at both ends of the two long cross bars.
[0015] Preferably, a buffer pad is provided on the bottom surface of the support plate.
[0016] Preferably, guide hard limit piles are arranged beside the mechanical limit structure and the buffer airbag, and a small buffer component is arranged on the top of the guide hard limit pile.
[0017] Preferably, the buffer airbag is filled with nitrogen, and the working pressure of the buffer airbag is 0.6-0.8 MPa.
[0018] Preferably, the height of the mechanical limiting structure is higher than the height of the buffer airbag, and the height of the buffer airbag in a non-compressed state is higher than the guide hard limiting pile.
[0019] Preferably, a top plate is provided on the top of the cushioning airbag.
[0020] The technical solution of the utility model can achieve the following beneficial effects:
[0021] The limit buffer device of the utility model can avoid collisions caused by the inertia of the diving bell when it is lifted, ensure the stability of the diving bell, and improve the experience of divers. The limit buffer device can prevent the diving bell from directly colliding with the recovery system during the process of lifting it out of the water, causing the diving bell to shake and damage the equipment or the riding experience of the people in the bell. The entire structure of the limit buffer device is modularly designed, with four mounting plates reserved, which can be used as a standard part for other saturation diving systems, reducing repeated designs and increasing the speed of product design and delivery. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The following is a brief description of the contents and symbols in the drawings of this specification:
[0023] Figure 1It is a schematic diagram of the structure of the diving bell and the lifting and recovery device combined together;
[0024] Figure 2 for Figure 1 A local enlarged view of point A in FIG.
[0025] Figure 3 This is a schematic diagram of the structure of the diving bell limit buffer device. Figure 1 ;
[0026] Figure 4 for Figure 3 Structural diagram of the mechanical limit structure;
[0027] Figure 5 for Figure 3 Schematic diagram of the structure of the middle cushion airbag;
[0028] The markings in the above figures are: 1. Diving bell; 2. Proximity switch; 3. Platform; 4. Buffer device; 5. Steel pipe frame; 6. Buffer airbag; 7. Mechanical limit structure; 8. Support plate; 9. Column; 10. Sleeve; 11. Air spring; 12. Long cross bar; 13. Short vertical bar; 14. Buffer pad; 15. Guide hard limit pile; 16. Small buffer assembly; 17. Top plate. DETAILED DESCRIPTION
[0029] The following is a detailed description of the embodiments of the present invention, including the shapes and structures of the components involved, the relative positions and connection relationships between the components, the functions and working principles of the components, etc.
[0030] like Figure 1 , 2 As shown in Figures 3 and 4, the diving bell limit buffer device includes a buffer device 4 and a steel tube frame 5. The buffer device 4 includes a buffer air bag 6 and a mechanical limit structure 7. The mechanical limit structure 7 is arranged next to the buffer air bag 6. Support plates 8 are arranged at the four corners of the steel tube frame 5. The buffer device 4 is arranged on the support plate 8. A buffer pad 14 is arranged on the bottom surface of the support plate 8. The buffer pad 14 directly contacts the upper part of the diving bell 1 to play a buffering role.
[0031] like Figure 4 As shown, the mechanical limit structure 7 includes a column 9, a sleeve 10 and an air spring 11. The air spring 11 is arranged on the top of the column 9, and the sleeve 10 is sleeved on the column to cover the air spring 11. The air spring 11 in the mechanical limit mechanism 7 plays a buffering role. When the top of the diving bell 1 rises and hits the buffer pad 14, if there is shaking, it may cause the entire steel pipe frame 5 to shake. At this time, the air spring 11 plays a certain buffering role to prevent the entire device from being damaged.
[0032] like Figure 3As shown, the steel pipe frame 5 includes two long cross bars 12 and two short vertical bars 13. The two short vertical bars 13 are vertically arranged between the two long cross bars 12, and the two ends of the two long cross bars 12 are provided with support plates 8. A guide hard limit pile 15 is arranged beside the mechanical limit structure 7 and the buffer air bag 6, and a small buffer component 16 is arranged on the top of the guide hard limit pile 15. The height of the mechanical limit structure 7 is higher than the height of the buffer air bag 6, and the height of the buffer air bag 6 in the non-compressed state is higher than the guide hard limit pile 15.
[0033] like Figure 5 As shown, the buffer airbag 6 is filled with nitrogen, the working pressure of the buffer airbag 6 is 0.6-0.8 MPa, and a top plate 17 is arranged on the top of the buffer airbag 6, which can prevent the buffer airbag 6 from being ruptured due to accidents.
[0034] The entire limit buffer device is installed on the hanging system. When in use, the diving bell 1 moves upward under the traction of the hanging system wire rope. The top of the diving bell 1 first contacts the buffer pad 14 at the bottom of the support plate 8, and the diving bell 1 continues to rise against the buffer device. At this time, the sleeve 10 extends into the through hole on the platform 3. After the sleeve 10 rises to a certain height, it approaches the proximity switch 2. After the proximity switch 2 senses the sleeve 10, it gives a signal to the hanging system to turn off the motor for winding the wire rope to stop the diving bell 1 from rising. For the safety of the system, four proximity switches 2 need to sense the sleeves 10 at four positions at the same time before A signal is given to the hoisting discharge motor of the hoisting system to stop rising, and the hoisting discharge motor of the hoisting system stops, and the diving bell 1 continues to rise under inertia to achieve buffering by squeezing the bottom of the platform 3 by the buffer air bag 6. The proximity switch 2 is arranged on the steel frame of the hoisting system. The proximity switch 2 is provided with 4 corresponding to the sleeve 10. The guide hard limit pile 15 is arranged next to the buffer air bag 6. The guide hard limit pile 15 can prevent the buffer air bag 6 from being over-compressed under the extreme state. When the guide hard limit pile 15 hits the bottom surface of the platform 3, the diving bell 1 can be forced to stop to prevent the buffer air bag 6 from being over-compressed.
[0035] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.
Claims
1. A diving bell limit buffer device, characterized in that: Including buffer device and steel tube frame, The buffer device comprises a buffer airbag and a mechanical limiting structure, wherein the mechanical limiting structure is arranged beside the buffer airbag; A steel tube frame, with support plates arranged at the four corners of the steel tube frame and buffer devices arranged on the support plates.
2. The diving bell limit buffer device according to claim 1, characterized in that: The mechanical limiting structure comprises a column, a sleeve and an air spring. The air spring is arranged on the top of the column, and the sleeve is sleeved on the column to cover the air spring.
3. The diving bell limit buffer device according to claim 1, characterized in that: The steel pipe frame comprises two long horizontal bars and two short vertical bars. The two short vertical bars are vertically arranged between the two long horizontal bars. Support plates are arranged at the two ends of the two long horizontal bars.
4. The diving bell limit buffer device according to claim 1 or 3, characterized in that: A buffer pad is arranged on the bottom surface of the supporting plate.
5. The diving bell limit buffer device according to claim 1, characterized in that: A guide hard limit pile is arranged beside the mechanical limit structure and the buffer air bag, and a small buffer component is arranged on the top of the guide hard limit pile.
6. The diving bell limit buffer device according to claim 1, characterized in that: The buffer airbag is filled with nitrogen, and the working pressure of the buffer airbag is 0.6-0.8MPa.
7. The diving bell limit buffer device according to claim 1, characterized in that: The height of the mechanical limiting structure is higher than that of the buffer airbag, and the height of the buffer airbag in a non-compressed state is higher than that of the guide hard limiting pile.
8. The diving bell limit buffer device according to claim 1, characterized in that: A top plate is arranged on the top of the buffer airbag.