Large buoy launching device

Abstract

The present application discloses a large-scale buoy delivery device, the large-scale buoy comprises a buoy body and an anchor chain body, the buoy body is provided with a first anchor chain segment below, the end of the first anchor chain segment is provided with a first connector, and one end of the anchor chain body is provided with a second connector; the large-scale buoy delivery device comprises a buoyancy body with a conical limiting hole, the buoyancy body comprises two semi-rings, the connecting ends of the two semi-rings are rotatably matched, the upper end surface of the matching end of one of the semi-rings is provided with a limiting recess, the limiting recess is used for hanging the first anchor chain segment, the matching ends of the two semi-rings are provided with a locking and unlocking structure, when the locking and unlocking structure is in a locked state, the two matching ends are locked with each other, when the locking and unlocking structure is in an unlocked state, the two semi-rings can be rotated and opened with each other, and the buoy body can be separated from the buoyancy body. The present application can place the buoy body through the buoyancy body, thereby protecting the buoy body, and the buoy body and the buoy body can be separated by the locking and unlocking structure.

Description

Technical Field

[0001] The invention relates to the field of buoys, and in particular to a large-scale buoy launching device. Background Art

[0002] For large buoys, such as those with a diameter of three meters, ships with lifting tools are needed to carry out the deployment. However, in some areas with restricted conditions, the ships there do not have equipment capable of lifting large buoys. The current method of deployment is to drive an excavator onto the ship and then use the excavator to deploy. This method of deployment is very troublesome and difficult to implement.

[0003] Existing technology also uses ropes to connect large buoys and ship hulls, and then drags them to designated sea areas for deployment. However, this method is not suitable for buoys with a diameter of three meters. The buoys are prone to shaking and directly collide with the ship, causing damage. Summary of the invention

[0004] In view of the above problems, the present invention proposes a large-scale buoy launching device.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A large buoy launching device, the large buoy comprises a buoy body and an anchor chain body, a first anchor chain segment is provided below the buoy body, a first connecting piece is fixed to the end of the first anchor chain segment, a second connecting piece is fixed to one end of the anchor chain body, and the first connecting piece and the second connecting piece are detachably connected;

[0007] The large buoy launching device comprises a buoyancy body with a conical limiting hole at the lower end of the middle part, the buoyancy body comprises two semi-rings, the semi-rings have a connecting end and a matching end, the connecting ends of the two semi-rings are rotatably matched, at least one semi-ring is provided with a connecting rope at the matching end, the connecting rope is used to connect the ship, the upper end surface of the matching end of one of the semi-rings has a limiting recess, the limiting recess is used for the first anchor chain segment to be hung, the matching ends of the two semi-rings are provided with a locking and unlocking structure, the locking and unlocking structure has a locking state and an unlocking state, when the locking and unlocking structure is in the locking state, the two matching ends are locked with each other, the buoyancy body remains in a cylindrical structure, the buoy body can be placed and limited on the conical limiting hole, when the locking and unlocking structure is in the unlocking state, the two semi-rings can be rotated to open each other, and the buoy body can be separated from the buoyancy body;

[0008] When the buoyancy body is transporting the buoy body at sea, the locking and unlocking structure is in a locked state, the buoy body is placed on the conical limiting hole, the first anchor chain segment is laid on the limiting recess, the first connecting piece is located on the outside of the buoyancy body, the anchor chain body is placed on the ship, and the connecting rope is connected to the ship.

[0009] A specific working process of the present application is as follows: the buoy body is placed on the conical limiting hole by means of lifting equipment at the dock, and then the buoyancy body is moved by means of a ship. When the ship is transported to the designated location for deployment, the connecting rope is first pulled to bring the buoyancy body close to the ship, and the second connecting piece and the first connecting piece are connected and fixed, and then the locking and unlocking structure is switched to an unlocked state. At this time, the two semi-rings can be rotated open to each other, and then a section of the anchor chain body on the hull close to the second connecting piece is thrown into the sea. Under the action of gravity, the anchor chain body will gradually fall into the sea, and finally the buoyancy body is moved to remove the buoy body from the space opened by the rotation of the two semi-rings.

[0010] The present application can place a buoy body through the buoyancy body, thereby protecting the buoy body. Even if a collision with a ship occurs, it is the buoyancy body that collides with the ship, which can effectively protect the buoy body located inside the buoyancy body. The first anchor chain segment can be limited by the limiting recess, so that when a large buoy is deployed, the first connecting member and the second connecting member can be connected faster and more conveniently to form a complete mooring system. The buoyancy body includes two semi-ring parts, and the two semi-ring parts can be combined and separated through a locking and unlocking structure, so that when deployed, the buoyancy body and the buoy body can be separated from each other without the need to hoist them.

[0011] This application is particularly suitable for areas with restricted conditions and can effectively reduce the requirements for ships.

[0012] In actual use, the first connecting member and the second connecting member can be detachably connected by a fastener (such as a bolt), or detachably connected by a buckle.

[0013] In one embodiment of the present invention, the semi-ring member includes a buoyancy portion located at a lower portion and a protection portion located above the buoyancy portion.

[0014] The buoyancy part mainly provides buoyancy, and the protective part can protect the buoy body. When colliding with a ship, the impact force is borne by the protective part, which can effectively prevent the components of the buoy body from being damaged.

[0015] In one embodiment of the present invention, the two half-rings are respectively a first half-ring and a second half-ring, and the locking and unlocking structure includes:

[0016] A positioning hole is provided at the mating end of the first half ring;

[0017] A sliding member, slidably disposed on the mating end of the second half ring member, the sliding member having a positioning pin, the positioning pin being used to cooperate with the positioning hole;

[0018] The telescopic element is fixed on the second half ring and can drive the sliding member to move up and down. When the locking and unlocking structure is in the locked state, the telescopic element is in a contracted state, so that the locating pin can be inserted into the locating hole. When the locking and unlocking structure is in the unlocked state, the telescopic element is in an extended state, so that the locating pin can be detached from the locating hole.

[0019] In one embodiment of the present invention, the second half ring has a slide groove, the sliding member is slidably mounted on the slide groove, the second half ring also has a first strip hole and a second strip hole communicating with the slide groove, and the positioning pin is connected to the sliding member via a first connecting portion passing through the first strip hole;

[0020] The locking and unlocking structure further comprises a pushing block and a second connecting part, wherein the pushing block is slidably arranged on the limiting notch, and when the buoy body is placed on the buoyancy body, the first anchor chain segment is located at the upper end of the pushing block, one end of the second connecting part is fixed to the pushing block, and the other end is fixed to the sliding member after passing through the second strip hole; the telescopic element cooperates with the pushing block to drive the pushing block, the second connecting part and the sliding member to move up and down synchronously;

[0021] When the locking and unlocking structure is in the unlocking state, the pushing block is driven upward by the telescopic element, and can drive the first anchor chain segment to move upward and leave the limiting notch.

[0022] The limiting notch is used to limit the position of the first anchor chain segment and the first connector, which is convenient for the subsequent connection of the first connector and the second connector. If the push block and other related structures are not provided, after the first connector and the second connector are connected, the first anchor chain segment needs to be manually removed from the limiting notch, which is inconvenient. The present application provides a pushing block at the limiting notch, so that when the telescopic element is switched to the unlocked state, it can not only disengage the positioning pin from the positioning hole, but also drive the first anchor chain segment to move up and disengage from the limiting notch, so that the first anchor chain segment can fall into the water more conveniently.

[0023] In one embodiment of the present invention, the first strip-shaped hole and the second strip-shaped hole are both vertical holes.

[0024] In one embodiment of the present invention, the upper end surface of the mating end of the second half ring has a first guiding slope in the area between the limiting recess and the mating end of the first half ring, and the first guiding slope is located lower as it is farther away from the limiting recess;

[0025] The upper end of the push block has a second guiding inclined surface, and the closer the second guiding inclined surface is to the mating end of the first half ring, the lower its position is.

[0026] The design of the first guiding slope and the second guiding slope enables the first anchor chain segment to slide downward under the action of gravity when the locking and unlocking structure is in the unlocked state (the first anchor chain segment moves upward and disengages from the limiting notch), so as to facilitate the first anchor chain segment to enter the water.

[0027] In one embodiment of the present invention, there are multiple positioning holes and positioning pins, and the upper end of the top positioning pin and the first connecting portion has a third guiding slope, and the position of the third guiding slope is lower as it is closer to the mating end of the first half ring.

[0028] The design of the third guiding slope can facilitate the first anchor chain section to enter the water.

[0029] In actual use, the mating end of the first half ring has a convex portion, the positioning hole is arranged on the convex portion, and the upper end surface of the uppermost convex portion has a fourth guide slope, and the position of the fourth guide slope is lower as it is closer to the mating end of the second half ring.

[0030] The design of the fourth guide slope can facilitate the first anchor chain section to enter the water.

[0031] In one embodiment of the present invention, the telescopic element is an electric push rod.

[0032] In one embodiment of the present invention, the connecting ends of the two half rings are rotatably matched via a rotating shaft.

[0033] In one embodiment of the present invention, the buoy body has a buoyancy seat, the buoyancy seat has a conical outer side wall, and the conical outer side wall cooperates with the conical limiting hole.

[0034] In one embodiment of the present invention, a heavy anchor is fixed to one end of the anchor chain body away from the second connecting piece.

[0035] After being dropped, the heavy anchor eventually falls to the seafloor, thereby defining the location of the large buoy.

[0036] In one embodiment of the present invention, the connecting rope is disposed on the first half ring.

[0037] The beneficial effects of the present invention are as follows: the present application can place a buoy body through the buoyancy body, thereby protecting the buoy body. Even if a collision with a ship occurs, it is the buoyancy body that collides with the ship, which can effectively protect the buoy body located inside the buoyancy body; the first anchor chain segment can be limited by the limiting recess, so that when a large buoy is deployed, the first connecting member and the second connecting member can be connected faster and more conveniently to form a complete mooring system; the buoyancy body includes two semi-ring parts, and the two semi-ring parts can be combined and separated through a locking and unlocking structure, so that when deployed, the buoyancy body and the buoy body can be separated from each other without the need to hoist them. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of the large buoy launching device and the large buoy when the locking and unlocking structure is in a locked state;

[0039] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0040] Figure 3 is a schematic diagram of a large buoy launching device when the locking and unlocking structure is in a locked state;

[0041] Figure 4 yes Figure 3 The enlarged view of point B in the middle;

[0042] Figure 5 is a partial cross-sectional view of the locking and unlocking structure in a locked state;

[0043] Figure 6 is a schematic diagram of the large buoy launching device and the large buoy when the locking and unlocking structure is in the unlocked state;

[0044] Figure 7 yes Figure 6 Enlarged view of point C in the middle;

[0045] Figure 8 is a schematic diagram of a large buoy launching device when the locking and unlocking structure is in the unlocked state;

[0046] Fig. 9 yes Figure 8 The enlarged view of point D in the middle;

[0047] Fig.10 It is a partial cross-sectional view of the locking and unlocking structure in the unlocked state;

[0048] Fig.11 It is a schematic diagram of the large buoy delivery device and the large buoy after delivery.

[0049] The reference numerals in the figures are:

[0050] 1. Large buoy; 11. Buoy body; 111. First anchor chain segment; 112. First connector; 113. Buoyancy seat; 1131. Conical outer side wall; 12. Anchor chain body; 121. Second connector; 2. Buoyancy body; 20. Locking and unlocking structure; 2a. Conical stopper hole; 2b. Connecting end; 2c. Matching end; 2d. Rotating shaft; 2e. Buoyancy part; 2f. Protective part; 21. First half ring; 211. Protrusion; 21 2. Positioning hole; 22. Second half ring; 221. Limiting notch; 222. Slide groove; 2221. First strip hole; 2222. Second strip hole; 223. Sliding member; 2231. Positioning pin; 2232. First connecting part; 22321. Third guiding slope; 2233. Second connecting part; 224. Telescopic element; 225. Pushing block; 2251. Second guiding slope; 226. First guiding slope; 23. Connecting rope. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0052] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0053] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] The present invention is described in detail below in conjunction with the accompanying drawings.

[0055] like Figures 1 to 11 As shown, this embodiment discloses a large buoy placing device for placing a large buoy 1.

[0056] like Figure 1 and 11 As shown, the large buoy 1 includes a buoy body 11 and an anchor chain body 12. A first anchor chain segment 111 is provided below the buoy body 11. A first connecting member 112 is fixed to the end of the first anchor chain segment 111. A second connecting member 121 is fixed to one end of the anchor chain body 12. The first connecting member 112 and the second connecting member 121 are detachably connected.

[0057] like Figure 1 , 3 As shown in Figure 11, the large buoy launching device includes a buoyancy body 2 with a tapered limiting hole 2a at the lower end of the middle part, the buoyancy body 2 includes two semi-rings, the semi-rings have a connecting end 2b and a matching end 2c, the connecting ends 2b of the two semi-rings are rotatably matched, at least one semi-ring is provided with a connecting rope 23 at the matching end 2c, the connecting rope 23 is used to connect the ship, the upper end surface of the matching end 2c of one of the semi-rings has a limiting recess 221, the limiting recess 221 is used for hanging the first anchor chain segment 111, the matching ends 2c of the two semi-rings are provided with a locking and unlocking structure 20, the locking and unlocking structure 20 has a locking state and an unlocking state, when the locking and unlocking structure 20 is in the locked state, the two matching ends 2c are locked with each other, the buoyancy body 2 remains in a cylindrical structure, the buoy body 11 can be placed and limited on the tapered limiting hole 2a, when the locking and unlocking structure 20 is in the unlocked state, the two semi-rings can be rotated to open each other, and the buoy body 11 can be separated from the buoyancy body 2;

[0058] When the buoyancy body 2 is transporting the buoy body 11 at sea, the locking and unlocking structure 20 is in a locked state, the buoy body 11 is placed on the conical limiting hole 2a, the first anchor chain segment 111 is set on the limiting notch 221, and the first connecting member 112 is located on the outside of the buoyancy body 2 (see Figure 2 ), the anchor chain body 12 is placed on the ship, and the connecting rope 23 is connected to the ship.

[0059] A specific working process of the present application is as follows: the buoy body 11 is placed on the conical limiting hole 2a by means of a lifting device at the dock, and then the buoyancy body 2 is driven to move by the ship. When the ship is transported to the designated location for deployment, the connecting rope 23 is first pulled to bring the buoyancy body 2 close to the ship, and the second connecting member 121 and the first connecting member 112 are connected and fixed, and then the locking and unlocking structure 20 is switched to the unlocking state, at which time the two semi-rings can be rotated and opened with respect to each other, and then a section of the anchor chain body 12 on the hull close to the second connecting member 121 is thrown into the sea, and under the action of gravity, the anchor chain body 12 will gradually fall into the sea. Fig.11 , and finally move the buoyancy body 2 so that the buoy body 11 is removed from the space opened by the rotation of the two half-rings.

[0060] The present application can place the buoy body 11 through the buoyancy body 2, so as to protect the buoy body 11. Even if it collides with a ship, it is the buoyancy body 2 that collides with the ship, which can effectively protect the buoy body 11 located in the buoyancy body 2; the first anchor chain segment 111 can be limited by the limiting recess 221, so that when a large buoy 1 is deployed, the first connecting member 112 and the second connecting member 121 can be connected faster and more conveniently to form a complete mooring system; the buoyancy body 2 includes two semi-ring parts, and the two semi-ring parts can be combined and separated by the locking and unlocking structure 20, so that when the buoyancy body 2 and the buoy body 11 are deployed, the two can be separated from each other without hoisting them.

[0061] This application is particularly suitable for areas with restricted conditions and can effectively reduce the requirements for ships.

[0062] In actual use, the first connecting member 112 and the second connecting member 121 can be detachably connected by fasteners (such as bolts) or detachably connected by buckles.

[0063] like Figure 3 As shown, in this embodiment, the semi-ring member includes a buoyancy portion 2e located at the bottom and a protection portion 2f located above the buoyancy portion 2e.

[0064] The buoyancy part 2e mainly provides buoyancy, and the protection part 2f can protect the buoy body 11. When colliding with a ship, the impact force is borne by the protection part 2f, which can effectively prevent the components of the buoyancy body 2 from being damaged.

[0065] like Figure 3 , 4 As shown in FIG. 5 , in this embodiment, the two half rings are respectively a first half ring 21 and a second half ring 22, the connecting rope 23 is arranged on the first half ring 21, and the locking and unlocking structure 20 includes:

[0066] A positioning hole 212 is provided at the mating end 2c of the first half ring 21;

[0067] A sliding member 223 is slidably disposed on the mating end 2c of the second half ring member 22. The sliding member 223 has a positioning pin 2231, and the positioning pin 2231 is used to cooperate with the positioning hole 212;

[0068] The telescopic element 224 is fixed on the second half ring 22, and can drive the sliding member 223 to move up and down. When the locking and unlocking structure 20 is in the locked state, the telescopic element 224 is in a retracted state, and the positioning pin 2231 can be inserted into the positioning hole 212. When the locking and unlocking structure 20 is in the unlocked state, the telescopic element 224 is in an extended state, and the positioning pin 2231 can be detached from the positioning hole 212.

[0069] like Figure 4 and5 As shown, in this embodiment, the second half ring member 22 has a slide groove 222, and the sliding member 223 is slidably installed on the slide groove 222. The second half ring member 22 also has a first bar hole 2221 and a second bar hole 2222 that are connected to the slide groove 222. The positioning pin 2231 is connected to the sliding member 223 through the first connecting portion 2232 that passes through the first bar hole 2221;

[0070] The locking and unlocking structure 20 further includes a pushing block 225 and a second connecting portion 2233. The pushing block 225 is slidably arranged on the limiting notch 221. When the buoy body 11 is placed on the buoyancy body 2, the first anchor chain segment 111 is located at the upper end of the pushing block 225. One end of the second connecting portion 2233 is fixed to the pushing block 225, and the other end is fixed to the sliding member 223 after passing through the second strip hole 2222. The telescopic element 224 cooperates with the pushing block 225 to drive the pushing block 225, the second connecting portion 2233 and the sliding member 223 to move up and down synchronously.

[0071] When the locking and unlocking structure 20 is in the unlocking state, the pushing block 225 is driven by the telescopic element 224 to move upward, and can drive the first anchor chain segment 111 to move upward and leave the limiting notch 221 .

[0072] The limiting notch 221 is used to limit the position of the first anchor chain segment 111 and the first connector 112, so as to facilitate the connection between the first connector 112 and the second connector 121. If the push block 225 and other related structures are not provided, after the first connector 112 and the second connector 121 are connected, the first anchor chain segment 111 needs to be manually removed from the limiting notch 221, which is inconvenient. The present application provides a pushing block 225 at the limiting notch 221, so that when the telescopic element 224 is switched to the unlocked state, it can not only make the positioning pin 2231 disengage from the positioning hole 212, but also drive the first anchor chain segment 111 to move upward and disengage from the limiting notch 221, so that the first anchor chain segment 111 can fall into the water more conveniently.

[0073] In this embodiment, the first strip-shaped hole 2221 and the second strip-shaped hole 2222 are both vertical holes.

[0074] like Figure 4 , 5 As shown in FIG. 11 , in this embodiment, the upper end surface of the mating end 2c of the second half ring member 22 has a first guiding inclined surface 226 in the area between the limiting recess 221 and the mating end 2c of the first half ring member 21. The farther away from the limiting recess 221, the lower the position of the first guiding inclined surface 226 is.

[0075] The upper end of the pushing block 225 has a second guiding inclined surface 2251 , and the closer the second guiding inclined surface 2251 is to the matching end 2 c of the first half ring member 21 , the lower the position thereof.

[0076] The design of the first guiding slope 226 and the second guiding slope 2251 enables the first anchor chain segment 111 to slide downward under the action of gravity when the locking and unlocking structure 20 is in the unlocked state (the first anchor chain segment 111 moves up and leaves the limiting recess 221), so that the first anchor chain segment 111 can fall into the water easily.

[0077] like Figure 4 , 5 As shown in Figures 11, in this embodiment, there are multiple positioning holes 212 and positioning pins 2231, and the upper end of the top positioning pin 2231 and the first connecting portion 2232 have a third guide slope 22321, and the closer the third guide slope 22321 is to the mating end 2c of the first half ring member 21, the lower the position.

[0078] The design of the third guiding slope 22321 can facilitate the first anchor chain segment 111 to fall into the water.

[0079] like Figure 4 , 5 As shown in FIG. 11 , the mating end 2c of the first half ring 21 has a convex portion 211, and the positioning hole 212 is provided on the convex portion 211. In actual use, the upper end surface of the uppermost convex portion 211 has a fourth guiding slope, and the closer the fourth guiding slope is to the mating end 2c of the second half ring 22, the lower the position. The design of the fourth guiding slope can facilitate the first anchor chain segment 111 to fall into the water.

[0080] In actual use, the telescopic element 224 can be an electric push rod.

[0081] like Figure 1 As described above, in this embodiment, the connecting ends 2b of the two half rings are rotationally matched via the rotating shaft 2d.

[0082] like Figure 3 and 11 As shown, in this embodiment, the buoy body 11 has a buoyancy seat 113, and the buoyancy seat 113 has a conical outer side wall 1131, and the conical outer side wall 1131 cooperates with the conical limiting hole 2a.

[0083] In this embodiment, a heavy anchor (omitted and not shown in the figure) is fixed to one end of the anchor chain body 12 away from the second connecting member 121. After being dropped, the heavy anchor finally falls to the seabed, thereby defining the position of the large buoy 1.

[0084] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent structural transformation made by using the contents of the present invention and the drawings, directly or indirectly used in other related technical fields, is also included in the protection scope of the present invention.

Claims

1. A large buoy launching device, characterized in that: The large buoy includes a buoy body and an anchor chain body, wherein a first anchor chain segment is provided below the buoy body, a first connecting member is fixed to the end of the first anchor chain segment, a second connecting member is fixed to one end of the anchor chain body, and the first connecting member and the second connecting member are detachably connected; The large buoy launching device comprises a buoyancy body with a conical limiting hole at the lower end of the middle part, the buoyancy body comprises two semi-rings, the semi-rings have a connecting end and a matching end, the connecting ends of the two semi-rings are rotatably matched, at least one semi-ring is provided with a connecting rope at the matching end, the connecting rope is used to connect the ship, the upper end surface of the matching end of one of the semi-rings has a limiting recess, the limiting recess is used for the first anchor chain segment to be hung, the matching ends of the two semi-rings are provided with a locking and unlocking structure, the locking and unlocking structure has a locking state and an unlocking state, when the locking and unlocking structure is in the locking state, the two matching ends are locked with each other, the buoyancy body remains in a cylindrical structure, the buoy body can be placed and limited on the conical limiting hole, when the locking and unlocking structure is in the unlocking state, the two semi-rings can be rotated to open each other, and the buoy body can be separated from the buoyancy body; When the buoyancy body is transporting the buoy body at sea, the locking and unlocking structure is in a locked state, the buoy body is placed on the conical limiting hole, the first anchor chain segment is laid on the limiting recess, the first connecting member is located outside the buoyancy body, the anchor chain body is placed on the ship, and the connecting rope is connected to the ship; The two half rings are respectively a first half ring and a second half ring, and the locking and unlocking structure comprises: A positioning hole is provided at the mating end of the first half ring member; A sliding member, slidably disposed on the mating end of the second half ring member, the sliding member having a positioning pin, the positioning pin being used to cooperate with the positioning hole; The telescopic element is fixed on the second half ring and can drive the sliding member to move up and down. When the locking and unlocking structure is in the locked state, the telescopic element is in a contracted state, so that the locating pin can be inserted into the locating hole. When the locking and unlocking structure is in the unlocked state, the telescopic element is in an extended state, so that the locating pin can be detached from the locating hole.

2. The large buoy launching device according to claim 1, characterized in that: The semi-ring member comprises a buoyancy portion located at the bottom and a protection portion located above the buoyancy portion.

3. The large buoy launching device according to claim 1, characterized in that: The second half ring has a slide groove, the sliding member is slidably mounted on the slide groove, the second half ring also has a first strip hole and a second strip hole communicating with the slide groove, and the positioning pin is connected to the sliding member via a first connecting portion passing through the first strip hole; The locking and unlocking structure further comprises a pushing block and a second connecting part, wherein the pushing block is slidably arranged on the limiting notch, and when the buoy body is placed on the buoyancy body, the first anchor chain segment is located at the upper end of the pushing block, one end of the second connecting part is fixed to the pushing block, and the other end is fixed to the sliding member after passing through the second strip hole; the telescopic element cooperates with the pushing block to drive the pushing block, the second connecting part and the sliding member to move up and down synchronously; When the locking and unlocking structure is in the unlocking state, the pushing block is driven upward by the telescopic element, and can drive the first anchor chain segment to move upward and leave the limiting notch.

4. The large buoy launching device according to claim 3, characterized in that: The upper end surface of the mating end of the second half ring has a first guiding slope in the area between the limiting notch and the mating end of the first half ring, and the first guiding slope is located lower as it is farther away from the limiting notch; The upper end of the push block has a second guiding inclined surface, and the closer the second guiding inclined surface is to the mating end of the first half ring, the lower its position is.

5. The large buoy launching device according to claim 4, characterized in that: There are multiple positioning holes and positioning pins. The uppermost positioning pin and the upper end of the first connecting part have a third guiding slope. The closer the third guiding slope is to the mating end of the first half ring, the lower its position is.

6. The large buoy launching device according to claim 1, characterized in that: The telescopic element is an electric push rod.

7. The large buoy launching device according to claim 1, characterized in that: The connecting ends of the two half rings are rotationally matched via a rotating shaft.

8. The large buoy launching device according to claim 1, characterized in that: The buoy body has a buoyancy seat, and the buoyancy seat has a conical outer side wall, and the conical outer side wall cooperates with the conical limiting hole.

9. The large buoy launching device according to claim 1, characterized in that: A heavy anchor is fixed to one end of the anchor chain body away from the second connecting piece.

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