Portable diving safety device

Abstract

The utility model relates to a portable diving safety device which comprises a cage body, a handrail is transversely and fixedly arranged in the middle of the top of the cage body, and a lifting lug used for lifting a winch is arranged on the top of the handrail. A pull lug for allowing a mooring rope to penetrate through to maintain balance is fixedly arranged on each of the two sides of the cage body; a clamping groove capable of being connected with the emergency gas cylinder in a clamping mode is formed in each of a pair of opposite corners of the bottom in the cage body, and the emergency gas cylinder is a portable emergency gas cylinder. According to the utility model, the safety in the diving pressure reduction process is ensured, meanwhile, the ship body does not need to be modified, the carrying is convenient, the universality is high, and the construction cost is lower.

Description

Technical Field

[0001] The utility model relates to a portable diving safety device, belonging to the technical field of diving safety devices. Background Art

[0002] Due to the fact that there are many usage scenarios for diving with compressed air in waters shallower than 60 meters, many ordinary ships serve as diving platforms. For example, there is no professional diving cage on ship types such as fishing boats, bulk carriers, oil tankers, and container ships. When divers directly carry out diving operations, excessive physical exertion may lead to the phenomenon of "floating away" (when divers do not decompress directly after working underwater for a long time and come out of the water directly, which is harmful to physical health).

[0003] When a diver uses compressed air to dive and work underwater, the environmental pressure he is in is greater than that of the air. Therefore, after a certain period of time, the body will dissolve more gas into the tissues. When using air diving, since nitrogen cannot be metabolized in the body, it has the greatest impact on the body. If a diver directly rises rapidly to the water surface after finishing work, due to the sharp decrease in pressure, the nitrogen dissolved in the body will be quickly released, forming bubbles. These bubbles may accumulate in parts such as blood vessels and joints, triggering decompression sickness, and presenting a series of serious symptoms such as joint pain, skin itching, difficulty breathing, dizziness, and even paralysis. Through the decompression process, allowing the diver to rise slowly gives enough time for the excess nitrogen in the body to gradually be discharged, thereby reducing the risk of decompression sickness and protecting the physical health of the diver.

[0004] In response to the above problems, the following are mainly several common methods currently:

[0005] 1) The diver controls the rising speed by autonomously controlling the buoyancy through inflating the diving suit;

[0006] 2) The diver completes the descent and ascent through the diving weight. The diver tightly holds the steel cable at the front end of the diving weight and controls the rising speed of the diver by controlling the lifting speed of the diving weight;

[0007] 3) Use a high-performance professional diving cage or diving bell.

[0008] Currently, the following disadvantages exist in several methods for divers to control ascent and decompression:

[0009] 1) Since the process of the diver inflating the diving suit is difficult for the diver to accurately control, the diver may rise too fast or not enough;

[0010] 2) After heavy physical work underwater, the diver is extremely physically exhausted. When tightly holding the steel cable at the front end of the diving weight, it may become loose and cause "floating away";

[0011] 3) Using a high-performance professional diving cage or diving bell has relatively high requirements for the spatial hull structure, takes a certain amount of time to install on the ship, and has a relatively high construction cost. Summary of the Invention

[0012] The utility model aims at the phenomenon of "floating" that is likely to occur during diving work using compressed air, and proposes an economical and practical solution. Specifically, while solving the safety during the diving decompression process, it is not necessary to modify the hull, is convenient to carry, has high versatility, and has a relatively low construction cost.

[0013] The utility model adopts the following technical solutions:

[0014] A portable diving safety device includes a cage body. In the middle of the top of the cage body, a railing 6 is horizontally fixed. At the top of the railing 6, a lifting lug 3 for winch lifting is provided; on each side of the cage body, a pulling ear 3 for threading a cable to maintain balance is fixed; at a pair of diagonal corners at the bottom inside the cage body, a card slot for clamping an emergency gas cylinder is provided respectively, and the emergency gas cylinder is a portable and lightweight emergency gas cylinder.

[0015] Preferably, the card slot and the cage body are fixed by screwing a screw rod and a nut, and the upper part of the emergency gas cylinder is fixed by a stainless steel air duct clamp.

[0016] Further, the capacity of the emergency gas cylinder is 12L.

[0017] Preferably, mounting points for an underwater camera and a diving light are provided on the railing 6, and the mounting points and the camera / diving light are fixed by a clamp.

[0018] Preferably, a pair of diver access doors 2 are provided on the front and rear sides of the cage body; the pair of diver access doors 2 are located at the position of the other diagonal corner avoiding the card slot; the cage body can accommodate 2 divers, the upper part of the cage body is open, and the divers can also enter and exit from the top underwater.

[0019] Further, the size of the cage body is 2 meters in length, 1.2 meters in width, and 1.8 meters in height, and the overall shape is a cuboid with rounded corners.

[0020] Preferably, the main body of the cage body is made of galvanized steel pipes with DN65 and a wall thickness of 4mm. There are 3 pillars in the front and rear respectively, 1 pillar on each side, and 3 pillars in the middle of the top.

[0021] Further, the diver access door 2 is made of galvanized steel pipes with DN25 and a wall thickness of 3mm; the lifting lug with a back thickness of 15mm is welded at the top of the railing 6 for lifting, and the pulling ear 3 with a back thickness of 10mm is welded on each of the left and right sides for traction to keep the lifting cage vertical during lifting.

[0022] Preferably, vertical railings are provided around the cage body at an interval of 30 cm. The railings are made of galvanized steel pipes with a diameter of DN25 and a wall thickness of 3 mm. The vertical railings are installed in all parts of the middle except for the positions of the front and rear doors. The bottom of the cage body is covered with a stainless steel grating plate 5 with a thickness of 3 mm and a height of 30 mm, which is fixed by welding.

[0023] Preferably, multiple anti-corrosion zinc blocks with a specification of 2.5 kg are provided on the railings 6 and around the cage body to slow down the corrosion of the cage body by water. The total weight of the whole cage is 280 - 320 kg.

[0024] The beneficial effects of the present utility model are as follows:

[0025] 1) Compared with the current professional diving cages or diving bells, the present portable diving safety device can effectively solve the safety problem during the diving decompression process without the need to modify the hull, with relatively low construction costs. It is convenient to carry, has strong timeliness, universality, and good operability.

[0026] 2) It can adapt to various ships and can be used on non-professional ships. It can be deployed together with diving equipment and will not impose a great burden on divers when transporting equipment.

[0027] 3) In terms of details: Lifting lugs are provided on both sides, and balance can be directly provided by manpower (or by a winch), eliminating the need for the rigid guiding devices necessary for diving cages or diving bells.

[0028] 4) In terms of details: At each of a pair of opposite corners at the bottom inside the cage body, there is a card slot for clamping an emergency gas cylinder, enabling the emergency gas cylinder to be detachable and carried with the diver. When an emergency occurs, the diver can still leave the safety device to carry out operations. In contrast, the emergency gas cylinders of diving cages or diving bells are fixed, and when an emergency occurs, the diver cannot leave the diving cage or diving bell and cannot carry out operations.

[0029] 5) In terms of details: By making good use of the railings, mounting points for underwater cameras and diving lights are fixedly arranged. The mounting points and the cameras / diving lights are fixed with clamps to achieve the function of underwater shooting and recording. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the cage body structure of the portable diving safety device of the present utility model.

[0031] Figure 2 It is a schematic diagram of the positions of the camera mounting points and the emergency gas cylinder card slots on the portable diving safety device of the present utility model.

[0032] Figure 3 It is a schematic diagram of the usage state of the portable diving safety device of the present utility model.

[0033] In the figure, 1. the main structure of the cage body, 2. the diver access door, 3. the lifting lug, 4. the galvanized steel pipe, 5. the stainless steel grating, 6. the anti-corrosion zinc block, 7. the mounting point for the camera / diving light, 8. the emergency air cylinder. Detailed implementation mode

[0034] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] The lifting cage of the portable diving safety device mainly consists of two parts, the cage body part, as Figure 1 shown; the auxiliary part, as Figure 2 shown.

[0036] The whole implementation process of the scheme is as Figure 3 shown.

[0037] The size of the cage body is 2 meters (length) × 1.2 (width) × 1.8 (height), and the overall shape is a cuboid with rounded corners on all sides, which can accommodate 2 divers at the same time.

[0038] See Figure 1 :

[0039] The label 1 is the main structure of the cage body, which is made of galvanized steel pipes with DN65 and a wall thickness of 4mm. There are 3 pillars in the front and back, 1 pillar on each side, and 3 pillars in the middle of the top, ensuring the strength requirements for lifting and lowering the cage body. Divers can enter and exit through two holes above the cage body. In the prior art, whether it is a diving cage or a diving bell, they are all enclosed, and divers can only enter and exit from one direction, either the side door or the bottom door, underwater, and cannot enter and exit from above.

[0040] The label 2 is the diver access door, which is made of galvanized steel pipes with DN25 and a wall thickness of 3mm. There is 1 door in the front and back, facilitating the entry and exit of divers.

[0041] The label 3 is the lifting lug. A lifting lug with a back thickness of 15mm is welded on the top for lifting, and lifting lugs with a back thickness of 10mm are welded on the left and right sides respectively for traction to keep the cage vertical during lifting and lowering.

[0042] The label 4 is the vertical railing with an interval of 30cm, and the material is galvanized steel pipe with DN25 and a wall thickness of 3mm. The middle part is installed with vertical railings except for the positions of the front and back doors (the railings at some positions in the figure are not drawn for easy viewing).

[0043] The label 5 is the stainless steel grating plate with a thickness of 3mm and a height of 30mm at the bottom, which is fixed by welding.

[0044] The label 6 is the anti-corrosion zinc block with a specification of 2.5kg, which is used to slow down the corrosion of the cage body by water. The whole cage weighs about 300kg. Four adult men can move it without the assistance of other mechanical equipment, which is convenient to carry.

[0045] See Figure 2 :

[0046] Label 7 is the mounting point for the underwater camera and diving light, fixed with a stainless steel clamp, and can be used to mount a variety of underwater cameras and diving lights on the market.

[0047] Label 8 is a 12L emergency gas cylinder, fixed at the bottom with a slot, tightened and fixed between the slot and the cage body with a screw and nut, and the upper part of the emergency gas cylinder is fixed with a stainless steel air duct clamp for convenient and quick access.

[0048] The steps for implementing the solution are as follows:

[0049] 1. Connect the top lifting lug with a 14mm steel cable and a 10T shackle. For convenient operation, a 12mm steel cable and an 8T shackle can be used to connect the lifting lug on the side.

[0050] 2. Pass the steel cable through the guiding hole and fix it to the mother ship. The top steel cable is fixed to the ship's winch (drum) by winding, and the steel cables on both sides are fixed to the bollards by winding. The winch (drum) and bollards are both equipped on the ship.

[0051] 3. Lift the diving cage outboard to a suspended state, and the diver enters the cage through the top or side door.

[0052] 4. Lower the diving cage by relaxing the top steel cable through the winch. Pull the side steel cable manually to reduce the influence of water flow and keep the cage body vertical.

[0053] 5. After the diving cage reaches the bottom, the diver exits the cage for operation. After the operation is completed, the diver returns to the cage and prepares to surface.

[0054] 6. The ship's winch (drum) winds in the steel cable to raise the diving cage. By winding in the length of the steel cable, the depth of the cage body underwater can be known. After staying at several depths for decompression, the diver completes the entire operation and returns to the mother ship.

[0055] The utility model is a safe and reliable device during the descent and decompression of divers, which can help divers accurately and safely complete decompression, and can also save the physical strength of divers to a certain extent. Since the device can be dispatched together with the diving equipment, it will not bring a great burden to the divers in transporting equipment. The invention has a simple structure, is easy to install, has strong versatility, and can greatly reduce the cost of diving on the ship platform. Compared with the current professional diving cages or diving bells, the portable diving safety device effectively solves the safety problem during diving decompression, does not require modification of the ship's hull, is convenient to carry, and has strong timeliness, versatility, and operability. It can adapt to various ships, can be used on non-professional ships, can be dispatched together with the diving equipment, and will not bring a great burden to the divers in transporting equipment.

[0056] Details: Ear tabs are provided on both sides, which can directly provide balance by manpower (or by winch), without the rigid guiding device necessary for a diving cage or diving bell; at each of the two corners at the bottom inside the cage, there is a card slot for clamping an emergency gas cylinder, so that the emergency gas cylinder can be detached and carried with the diver. When an emergency occurs, the diver can still leave the safety device to carry out operations; while the emergency gas cylinder of a diving cage or diving bell is fixed, and when an emergency occurs, the diver cannot leave the diving cage or diving bell and cannot carry out operations. The railing is cleverly utilized to fixedly set the mounting points for the underwater camera and diving light. The mounting points are fixed to the camera / diving light with a clamp to realize the function of underwater shooting and recording.

[0057] The above are the preferred embodiments of the present utility model. Those of ordinary skill in the art can also make various changes or improvements based on this. Without departing from the general concept of the present utility model, these changes or improvements should fall within the scope of protection required by the present utility model.

Claims

1. A portable diving safety device, characterized in that: It includes a cage body. In the middle of the top of the cage body, a railing (6) is horizontally fixed. At the top of the railing (6), a lifting lug (3) for winch hoisting is provided; on both sides of the cage body, a pulling lug for passing through a cable to maintain balance is fixedly provided respectively. At each of a pair of diagonal corners at the bottom inside the cage body, a clamping groove for clamping an emergency gas cylinder is provided. The emergency gas cylinder is a portable and lightweight emergency gas cylinder.

2. The portable diving safety device according to claim 1, characterized in that: The clamping groove and the cage body are fixed by screwing a screw and a nut. The upper part of the emergency gas cylinder is fixed by a stainless steel air duct clamp.

3. The portable diving safety device according to claim 2, characterized in that: The capacity of the emergency gas cylinder is 12L.

4. The portable diving safety device according to claim 1, characterized in that: Mounting points (7) for an underwater camera and a diving light are provided on the railing (6). The mounting points and the camera / diving light are fixed by a clamp.

5. The portable diving safety device according to claim 1, wherein: On the front and rear sides of the cage body, a pair of diver access doors (2) are provided. The pair of diver access doors (2) are located at the position of the other diagonal corner avoiding the clamping grooves; 2 divers can be accommodated inside the cage body. The upper part of the cage body is open, and divers can also enter and exit from the top underwater.

6. The portable diving safety device according to claim 5, characterized in that: The size of the cage body is 2 meters in length, 1.2 meters in width and 1.8 meters in height, and the overall shape is a cuboid with rounded corners.

7. The portable diving safety device according to claim 1, characterized in that: The main body of the cage body is made of galvanized steel pipes with DN65 and a wall thickness of 4mm. There are 3 struts at the front and rear respectively, 1 strut on each side, and 3 struts in the middle of the top.

8. The portable diving safety device according to claim 5, wherein: The diver access door (2) is made of galvanized steel pipes with DN25 and a wall thickness of 3mm; at the top of the railing (6), the lifting lug with a back thickness of 15mm is welded for hoisting, and the pulling lugs with a back thickness of 10mm are welded on the left and right sides respectively for traction to keep the cage vertical during hoisting.

9. The portable diving safety device according to claim 1, characterized in that: Vertical railings with an interval of 30cm are provided around the cage body. The material is galvanized steel pipes with DN25 and a wall thickness of 3mm. The middle part is all installed with the vertical railings except for the positions of the front and rear doors; a stainless steel grille plate (5) with a thickness of 3mm and a height of 30mm is laid at the bottom of the cage body and fixed by welding.

10. The portable diving safety device according to claim 1, characterized in that: On the railing (6) and around the cage body, a plurality of anticorrosive zinc blocks with a specification of 2.5kg are provided to slow down the corrosion of the water on the cage body. The total weight of the whole cage body is 280 - 320kg.

Images