A ship navigation anti-collision device

Abstract

The utility model relates to the technical field of ball technology, and disclose a kind of ship navigation anti-collision device, including protective sleeve, the inside of protective sleeve is equipped with multiple annular air bags, the middle position of annular air bag is slidably connected with upper inserting rod and lower inserting rod, upper inserting rod and lower inserting rod structure are same, and upper inserting rod and lower inserting rod are symmetrically distributed with the center point of upper inserting rod and lower inserting rod butt joint surface as symmetry center, both ends of annular air bag are equipped with end plate, end plate is slidably connected with multiple fixed bolts, multiple fixed bolts are respectively with upper inserting rod and lower inserting rod thread connection.This kind of ship navigation anti-collision device, multiple annular air bag is sleeved in the outside of upper inserting rod and lower inserting rod, and annular air bag is fixed and limited by end plate and fixed bolt, finally, protective sleeve cage is fixed in the outside of annular air bag, so that even if individual annular air bag is damaged, leading to its airtightness is affected, also will not force the whole ball to be scrapped, avoid the waste of resources, it is favorable to the control of overall cost.

Description

Technical Field

[0001] This utility model relates to the field of ball bearing technology, specifically a collision avoidance device for ship navigation. Background Technology

[0002] A fender, also known as an inflatable rubber fender or marine fender, is a marine collision avoidance device that uses compressed air as a buffer medium. It is widely used in ships, dock piers, and offshore platforms. Its structure comprises an outer rubber protective layer, an inner impermeable rubber layer, a cord reinforcement layer, and a metal flange. When a ship berths or is involved in a collision, the fender uses compressed air to absorb the impact energy, giving the ship greater flexibility and resilience during berthing, thus preventing collisions and reducing the unit pressure on the ship's surface, protecting the hull and dock from damage.

[0003] As per existing technology, Chinese utility model patent CN209776763U discloses a puncture-resistant marine buoy, comprising a sphere, an end flange at the front end of the sphere, a lifting ring connected to the end of the end flange away from the sphere, a fixing sealing ring embedded in the end of the sphere away from the lifting ring, and a sealing opening provided on the fixing sealing ring, the surface of the sphere being provided with several tires, each tire being fixedly connected by a connector, the center gap of the tires being connected with a first reinforcing rib and a second reinforcing rib, the sphere being made of high-strength polyester and nylon as the skeleton material, wound and integrally vulcanized, the sphere being filled with compressed air as a buffer medium, giving it a softer collision avoidance effect when the ship is alongside, and the first and second reinforcing ribs being cross-installed in each tire, giving the sphere surface good elasticity and puncture resistance, avoiding tire punctures and air leakage, which would cause inconvenience in use. This sphere has the characteristics of high impact energy absorption and excellent impact fatigue resistance.

[0004] The above-mentioned ball-handling still has some shortcomings:

[0005] The aforementioned buoys primarily rely on compressed air to absorb collision energy to achieve their anti-collision function. Although they are equipped with an external protective sleeve for basic protection, in actual operating scenarios, if they frequently come into contact with and rub against sharp objects such as rough quay walls and protruding structures on the dock, the surface of the buoy is highly susceptible to localized scratches. Such damage will compromise the airtight structure of the buoy, leading to internal compressed air leakage, ultimately forcing the entire buoy to be scrapped, resulting in a waste of resources. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a ship navigation collision avoidance device that turns the entire buoy into a ring-shaped airbag, thus avoiding the complete scrapping of the buoy and reducing the waste of resources.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a ship navigation collision avoidance device, including a protective sleeve, with multiple annular airbags provided on the inner side of the protective sleeve. An upper insertion rod and a lower insertion rod are slidably connected to the middle position of the annular airbags. The upper insertion rod and the lower insertion rod have the same structure and are centrally symmetrically distributed with the center point of the mating surface of the upper insertion rod and the lower insertion rod as the center of symmetry. Both ends of the annular airbags are provided with end plates, and multiple fixing bolts are slidably connected to the end plates. The multiple fixing bolts are threadedly connected to the upper insertion rod and the lower insertion rod respectively.

[0008] Furthermore, a positioning block is fixed to one end of the upper insertion rod, and a positioning groove matching the positioning block is opened at the end of the upper insertion rod away from the positioning block.

[0009] Furthermore, a rotating block is fixed to the side of the positioning block away from the upper insertion rod, and a rotating groove matching the rotating block is opened on the inner side of the end plate.

[0010] Furthermore, a storage groove is provided at one end of the upper insertion rod near the end plate, and a connecting groove is provided at the other end of the upper insertion rod away from the end plate. The connecting groove matches the storage groove, and a connecting block is slidably connected inside the storage groove. The connecting block is fixedly connected to the end plate.

[0011] Furthermore, the ends of the storage groove and the connecting groove are trapezoidal.

[0012] Furthermore, the end of the connecting block near the connecting groove is chamfered.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This type of ship navigation collision avoidance device involves placing multiple annular airbags around the upper and lower insertion rods, and fixing and restricting the annular airbags with end plates and fixing bolts. Finally, a protective cover is placed over and fixed to the outside of the annular airbags. In this way, even if individual annular airbags are damaged, affecting their airtightness, the entire ball will not be scrapped, avoiding waste of resources and helping to control overall costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 A magnified schematic diagram of the local structure at point A;

[0017] Figure 3 This is a schematic diagram of the structure of the upper and lower insert rods of this utility model when they are separated;

[0018] Figure 4This is a structural schematic diagram of the upper and lower insertion rods of this utility model when viewed from below.

[0019] In the diagram: 1. Protective sleeve; 2. Annular airbag; 3. Upper insert rod; 4. Lower insert rod; 5. End plate; 6. Storage slot; 7. Connecting slot; 8. Positioning slot; 9. Positioning block; 10. Rotating block; 11. Rotating slot; 12. Connecting block; 13. Fixing bolt. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Please see Figure 1-4 A ship navigation collision avoidance device includes a protective sleeve 1. Multiple annular airbags 2 are provided on the inner side of the protective sleeve 1. An upper insertion rod 3 and a lower insertion rod 4 are slidably connected to the middle position of the annular airbags 2. The upper insertion rod 3 and the lower insertion rod 4 have the same structure and are centrally symmetrically distributed with the center point of the mating surface of the upper insertion rod 3 and the lower insertion rod 4 as the center of symmetry. Both ends of the annular airbags 2 are provided with end plates 5. Multiple fixing bolts 13 are slidably connected to the end plates 5. The multiple fixing bolts 13 are threadedly connected to the upper insertion rod 3 and the lower insertion rod 4 respectively.

[0022] The ship navigation collision avoidance device of this utility model consists of multiple annular airbags 2 fitted over the upper insertion rod 3 and lower insertion rod 4, and the annular airbags 2 are fixed and restricted by the end plate 5 and fixing bolts 13. Finally, a protective sleeve 1 is covered and fixed to the outside of the annular airbags 2. In this way, even if individual annular airbags 2 are damaged, affecting the airtightness of the annular airbags 2, the entire ball bearing will not be scrapped, avoiding waste of resources and helping to control the overall cost. In addition, the air intake structure, exhaust structure and sealing structure of the annular airbags 2 are similar to the air intake structure, exhaust structure and sealing structure of the existing ball bearing. Since the air intake structure, exhaust structure and sealing structure are existing mature products, they will not be described in detail here, and they are not shown in the figure.

[0023] like Figure 3 and Figure 4 As shown, a positioning block 9 is fixedly connected to one end of the upper insertion rod 3, and a positioning groove 8 matching the positioning block 9 is opened at the end of the upper insertion rod 3 away from the positioning block 9.

[0024] Specifically, the upper insertion rod 3 and the lower insertion rod 4 are restricted by the positioning block 9 and the positioning groove 8, making it easier for the upper insertion rod 3 and the lower insertion rod 4 to be connected and fixed together.

[0025] like Figure 3 and Figure 4As shown, a rotating block 10 is fixed to the side of the positioning block 9 away from the upper insertion rod 3, and a rotating groove 11 matching the rotating block 10 is opened on the inner side of the end plate 5.

[0026] like Figure 3 and Figure 4 As shown, the upper insertion rod 3 has a storage groove 6 at one end near the end plate 5, and a connecting groove 7 at the other end away from the end plate 5. The connecting groove 7 matches the storage groove 6, and a connecting block 12 is slidably connected inside the storage groove 6. The connecting block 12 is fixedly connected to the end plate 5.

[0027] Specifically, after the upper insertion rod 3 and the lower insertion rod 4 overlap, the end plate 5 can be rotated to insert the connecting block 12 into the connecting groove 7, thereby pre-fixing the upper insertion rod 3 and the lower insertion rod 4, which facilitates the subsequent use of fixing bolts 13 to connect the upper insertion rod 3 and the lower insertion rod 4 into a whole.

[0028] like Figure 3 and Figure 4 As shown, the ends of the storage slot 6 and the connecting slot 7 are trapezoidal. The trapezoidal design of the storage slot 6 and the connecting slot 7 provides a better limiting effect after the connecting block 12 is inserted into the storage slot 6 and the connecting slot 7.

[0029] like Figure 4 As shown, the end of the connecting block 12 near the connecting groove 7 has a chamfer. The chamfer makes it easier for the connecting block 12 to connect into the groove 7.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A ship navigation anti-collision device comprising a protective sleeve (1), characterized in that, The inner side of the protective sleeve (1) is provided with multiple annular airbags (2). The upper insertion rod (3) and the lower insertion rod (4) are slidably connected at the middle position of the annular airbag (2). The upper insertion rod (3) and the lower insertion rod (4) have the same structure. The upper insertion rod (3) and the lower insertion rod (4) are symmetrically distributed with the center point of the mating surface of the upper insertion rod (3) and the lower insertion rod (4) as the center of symmetry. Both ends of the annular airbag (2) are provided with end plates (5). Multiple fixing bolts (13) are slidably connected on the end plates (5). The multiple fixing bolts (13) are threadedly connected to the upper insertion rod (3) and the lower insertion rod (4) respectively.

2. The ship navigation collision avoidance device according to claim 1, characterized in that, One end of the upper insertion rod (3) is fixedly connected to a positioning block (9), and the end of the upper insertion rod (3) away from the positioning block (9) is provided with a positioning groove (8) that matches the positioning block (9).

3. A ship navigation collision avoidance device according to claim 2, characterized in that, The positioning block (9) is fixed to a rotating block (10) on the side away from the upper insertion rod (3), and the inner side of the end plate (5) is provided with a rotating groove (11) that matches the rotating block (10).

4. A ship navigation collision avoidance device according to claim 1, characterized in that, The upper insertion rod (3) has a storage groove (6) at one end near the end plate (5), and a connecting groove (7) at the other end away from the end plate (5). The connecting groove (7) matches the storage groove (6). A connecting block (12) is slidably connected inside the storage groove (6), and the connecting block (12) is fixedly connected to the end plate (5).

5. A ship navigation collision avoidance device according to claim 4, characterized in that, The ends of the storage slot (6) and the connecting slot (7) are trapezoidal.

6. A ship navigation collision avoidance device according to claim 4, characterized in that, The end of the connecting block (12) near the connecting groove (7) has a chamfer.

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