A marine anti-collision buoy
By combining the support body and the bladder, a robust marine anti-collision buoy is formed using prefabricated components and rotational molding technology, solving the problem of easy breakage of existing buoys and achieving high strength and long service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDE HUAHAN FITNESS EQUIP MFG CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-31
AI Technical Summary
The existing structure of marine buoys makes them prone to breakage or cracking under stress, resulting in a short service life and an inability to effectively resist external forces.
The design employs a support body and a bladder. The support body is made of prefabricated components and connected to the bladder through rotational molding or blow molding. The connection strength between the support body and the bladder is enhanced by structures such as connecting sections and connecting discs. The support body is made of rigid plastic, and the bladder is made of soft plastic. The combination of rotational molding or blow molding processes forms a robust overall structure.
The connection strength and service life of the buoy have been improved. The combination of the support body and the bladder body has enhanced the tensile and wear resistance of the overall structure, avoiding cracking and breakage and extending the service life.
Smart Images

Figure CN224576784U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of marine products, and specifically relates to a marine anti-collision buoy. Background Technology
[0002] Existing marine buoys are typically spherical or roughly cylindrical capsule-shaped, consisting of two functional parts: the capsule body and the lugs. Steel cables or ropes are threaded through the lugs to secure the buoy, while the capsule body provides cushioning. These two parts are usually manufactured in two ways: one is by blow molding or rotational molding from the same plastic material in a single mold. However, this structure is entirely hollow, and the lugs, which bear the load, are relatively soft and easily break under external force, resulting in poor resistance to external forces and a short lifespan, leading to its obsolescence. The other method involves setting the capsule body and lugs in two separate molds, separated by a diaphragm. Materials are injected into each mold separately, and the capsule body and lugs are formed simultaneously and bonded together. This molding method means that the buoy body and the lug can only be thermoformed and connected at their opposite ends, without any other connecting parts. The connection area is small, and the diaphragm residue at the fusion point of the lug and the buoy body affects the connection strength. Therefore, buoys with this structure are prone to cracking and damage at the joint when subjected to external forces, resulting in a limited service life. Utility Model Content
[0003] To address the problem of unsatisfactory service life caused by the unreasonable structure of existing buoys, this utility model provides a marine anti-collision buoy with a reasonable structure, reliable connection, and is not prone to cracking or breakage, resulting in a more ideal service life.
[0004] The technical solution adopted by this utility model is as follows: A marine anti-collision buoy includes a connected support body and a hollow bladder. The support body has a lug and an annular end edge. The lug is provided with a through hole for a connecting rope to pass through. The bladder fits against the end edge of the support body and extends into the inner wall of the support body, thereby forming a connecting section in the inner wall of the support body. The connecting section at least partially covers the inner wall of the support body.
[0005] The support body can be made of prefabricated components, which can withstand greater external forces. During molding, soft PVC material is first added to the bladder mold, and then the prefabricated component is pressed and the top of the bladder mold is sealed. This prevents the material from flowing out of the bladder mold. After the material is heated and becomes fluid, rotational molding, injection molding, or blow molding processes are used to allow the material to flow and form throughout the mold. Because the prefabricated component has a cavity that is connected to the inner wall of the mold, the heated material will solidify on the inner wall of the prefabricated component, thus adhering the bladder material to the inner wall of the prefabricated component. After the two are bonded, the contact area increases, thereby increasing the strength of the support body and the bladder and ensuring the product's service life. At the same time, because there is no diaphragm at the connection between the prefabricated component and the bladder, the joint is not only strong but also more aesthetically pleasing. Therefore, the two functional parts (support body and bladder) of the buoy in this application have high connection strength, are not prone to cracking at the connection, and have an ideal service life.
[0006] Furthermore, the support body includes an outwardly protruding connecting disc, the lower end face of which forms the end edge, and the connecting disc is integrally formed with the hanging ear. The connecting disc serves to connect the buoy body, and its lower end face forms the end edge. The connecting disc is outwardly convex, and when subjected to force, it can generate force distribution through its outward shape. Therefore, it can withstand greater external forces and has good resistance. Moreover, the outwardly convex shape is integrated with the buoy body material, making the entire buoy shape full and aesthetically pleasing.
[0007] Furthermore, the support body is provided with connecting ribs that extend from the lugs towards the connecting plate. The connecting ribs themselves possess a certain strength and, connecting the lugs and the connecting plate, also serve a connecting function, further ensuring the overall structural strength.
[0008] Furthermore, the support body is provided with a groove, the groove having sidewalls that gradually narrow from the connecting disc towards the hanging ear, dividing the side of the hanging ear to form the connecting rib. The groove and the support body are integrally formed, and the groove forms a concave-convex surface on the inner side of the support body, which can both increase its own strength and increase the contact area of the bladder material.
[0009] Furthermore, the lug portion has a connected arc surface and a bevel, the bevel gradually widening along the arc surface towards the connecting disc, and the groove is located on the bevel. The arc surface provides a smooth outer contour, and the bevel provides a relatively smooth transition surface.
[0010] Furthermore, the ear-like part is provided with two abutments, and the wall of the hole at the perforation smoothly transitions with the two abutments. The perforation connects the two abutments, forming a structurally reliable connection channel on the inner side of the ear-like part.
[0011] Furthermore, the support body is provided with a raised support boss, which is used to connect the stop surface and the connecting plate. The support boss is smoothly connected to the stop surface and the connecting plate, effectively reducing internal stress. In addition, the support boss has a protruding edge, which can provide it with a certain strength, further ensuring the connection strength and resistance.
[0012] Furthermore, the support body is made of rigid plastic, while the bladder is made of soft plastic. The rigid support body has good tensile and wear resistance, while the soft bladder can absorb more impact energy and is not easily damaged under external forces. This combination of rigid and soft materials ensures the functionality of each component while giving the entire buoy a relatively ideal service life.
[0013] Furthermore, the end edge has a groove, which is wider at the outside and narrower at the inside. During molding, the capsule material flows into the groove and fills and covers it, so that the capsule material and the support can be tightly bonded together.
[0014] Furthermore, the inner wall of the support body is provided with annular support ribs. The annular support ribs are located inside the support body and can play a role in maintaining its shape.
[0015] The beneficial effects of this utility model are as follows: This application is for a marine anti-collision buoy. The support body can be made of prefabricated parts, which can withstand greater external forces. When the bladder is formed, it extends to the support body to form a connecting section. The contact area between the support body and the bladder body is large and the adhesion is strong. The whole structure is reasonably designed, firm and reliable, and not easy to crack or break, ensuring that the service life of the entire marine anti-collision buoy reaches a relatively ideal level. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the marine anti-collision buoy in Example 1; Figure 2 This is a schematic diagram of the internal structure of the support structure; Figure 3 This is a schematic diagram of the ear loop structure; Figure 4 This is a schematic diagram of the bottom structure of the support. Figure 5 This is a schematic diagram of a partial cross-sectional structure of the support structure; Figure 6 for Figure 5 A magnified structural diagram of part A; Figure 7 This is a schematic diagram of the overall structure of the marine anti-collision buoy in Example 2; Figure 8 This is a schematic diagram of the overall structure of the marine anti-collision buoy in Example 3; Wherein: 1-Support body; 11-Hanging ear; 111-Perforation; 112-Arc surface; 113-Bevel; 114-Blocking surface; 115-Hole wall; 12-End edge; 13-Connecting disc; 14-Connecting rib; 15-Groove; 16-Supporting boss; 17-Inset groove; 171-Rib; 18-Protruding rib; 19-Air hole; 2-Bag body; 21-Connecting section. Detailed Implementation
[0017] The technical solutions of the embodiments of this utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of this utility model.
[0018] A type of marine anti-collision buoy, such as Figures 1 to 6 As shown, it includes a connected support body 1 and a hollow bladder 2. The support body 1 has a hanging ear portion 11 and an annular end edge 12. The hanging ear portion 11 is provided with a through hole 111 through which a connecting rope can pass. The bladder 2 fits against the end edge 12 of the support body 1 and extends into the inner wall of the support body 1, thereby forming a connecting section 21 on the inner wall of the support body 1. The connecting section 21 at least partially covers the inner wall of the support body 1.
[0019] The support body 1 includes an outwardly protruding connecting disc 13, the lower end face of which forms the end edge 12. The connecting disc 13 is integrally formed with the hanging ear portion 11. The connecting disc 13 serves to connect the buoy body 2. Its bottom annular end face forms the end edge 12. The connecting disc 13 is outwardly convex, and when subjected to force, it can generate force distribution through its outward shape. Therefore, it can withstand greater external force and has good resistance. Moreover, the outwardly convex shape is integrated with the material of the buoy body 2, making the entire buoy shape full and beautiful.
[0020] In this embodiment, there are two support bodies 1 and the bladder body 2 is cylindrical. When in use, at least one support body 1 can be suspended by a rope for fixation.
[0021] The support body 1 is made of rigid plastic, while the bladder body 2 is made of soft plastic. The rigid support body 1 has good tensile and wear resistance, while the soft bladder body 2 can absorb more impact energy and is not easily damaged under external forces. This combination of rigid and soft materials ensures the function of each part while giving the entire buoy a relatively ideal service life.
[0022] The support body 1 is provided with a connecting rib 14, which extends from the hanging ear portion 11 to the connecting plate 13. The connecting rib 14 has a certain strength and connects the hanging ear portion 11 and the connecting plate 13, thus playing a certain connecting role and further ensuring the overall structural strength.
[0023] The support body 1 is provided with a groove 15, which has a sidewall. The sidewall of the groove 15 gradually narrows from the connecting plate 13 toward the hanging ear 11, dividing the side of the hanging ear to form the connecting rib 14. The groove 15 is integrally formed with the support body 1. The groove 15 forms a concave-convex surface on the inner side of the support body 1, which can increase its own strength and increase the contact area of the bladder material 2.
[0024] The lug portion 11 has a connected arc surface 112 and two inclined surfaces 113. The inclined surfaces 113 gradually widen along the arc surface 112 towards the connecting plate 13, and the groove 15 is located on the inclined surface 113. The arc surface 112 provides a smooth outer contour, and the inclined surfaces 113 provide a relatively smooth transition surface. The inclined surface 113 forms the groove 15 and the connecting rib 14 through a convex-concave arrangement, wherein the concave portion forms the groove 15, and the convex portion forms the connecting rib 14. The convex-concave arrangement can enhance the support strength of the inclined surface. The integrally formed support body 1 is divided into the lug portion 11 and the connecting plate 13 according to different functions. Compared with the prior art, the connecting rib 14 is not a solid structure, but it can still maintain good strength and meet the usage requirements.
[0025] The lug portion 11 has two abutments 114, and an annular hole wall 115 surrounds the through hole 111, with the hole wall 115 smoothly transitioning to the two abutments 114. The through hole 111 connects the two abutments 114, facilitating the passage of ropes and forming a structurally reliable connection channel on the inner side of the lug portion 11, ensuring the strength of the through hole 111 in the lug portion 11. Both abutments 114 are connected to the arc surface 112 and two inclined surfaces 113 to form the main structure of the lug portion 11.
[0026] The support body 1 is provided with a raised support boss 16, which is used to connect the baffle 114 and the connecting plate 13. The support boss 16 is smoothly connected to the baffle 114 and the connecting plate 13, which effectively reduces internal stress. In addition, the support boss 16 has a protruding edge, which effectively avoids indentation under stress and can provide itself with a certain strength, further ensuring the connection strength and resistance.
[0027] The connecting plate 13 is recessed to form a cavity, and the inner wall of the cavity forms an air hole 19. That is, the air hole 19 and the connecting plate 13 are integrally formed. In use, a rubber stopper can be filled into the air hole 19 to seal it and ensure the impact protection effect of the bladder 2. Alternatively, the rubber stopper can be removed from the air hole 19, and then the gas in the bladder 2 can be released for storage and transportation.
[0028] The end edge 12 has a groove 17, which is wider on the outside and narrower on the inside, from... Figure 2 , Figure 3As can be seen, the groove 17 is triangular. During molding, the material of the capsule 2 flows into the groove 17 and fills and covers it, so that the material of the capsule 2 and the support 1 can be tightly bonded, ensuring the connection strength. In this embodiment, the end edge 12 is divided into two segments by the groove 17, but both segments are planar, which facilitates molding and ensures that the end edge 12 has sufficient contact surface. Ribs 171 are also provided at the groove 17. The ribs 171 extend into the inner wall of the connecting plate 13 to form a supporting slope. Therefore, the ribs 171 can provide a certain supporting force for the end edge 12 to prevent the strength of the end edge 12 from being weakened after the groove 17 is set. At the same time, it can also facilitate the demolding of the integrally manufactured support 1.
[0029] The connecting section 21 can completely or partially cover the inner wall of the support body 1, depending on actual needs. However, it must completely cover the end edge 12 to ensure practical application. The support body 1 is made of prefabricated rigid plastic, which can withstand significant external forces. During molding, only PVC raw materials are needed to prepare the capsule 2. The raw material becomes fluid when heated and has a certain shrinkage force after solidification, allowing it to firmly adhere to the surface of the support body 1. This results in high connection strength, making it less prone to cracking at the connection point and ensuring a relatively ideal service life.
[0030] Example 2 like Figure 7 As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, the support body 1 is provided, and the bladder 2 is cylindrical. Multiple ribs 18 are provided on the outer surface of the bladder 2. The ribs 18 provide relatively ideal support strength for the bladder 2, resulting in good overall support strength for the bladder 2.
[0031] Example 3 like Figure 8 As shown, the difference between this embodiment and embodiment 1 is that the support 1 is provided and the capsule 2 is spherical.
[0032] Example 4 The difference between this embodiment and Embodiment 1 is that the inner wall of the support body 1 is provided with annular support ribs (not shown in the figure). The annular support ribs are located inside the support body 1, which can maintain the shape and increase the strength of the support body 1.
[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.
Claims
1. A marine fender buoy, characterized in that It includes a connected support body (1) and a hollow bladder (2). The support body (1) has a hanging ear (11) and an annular end edge (12). The hanging ear (11) is provided with a through hole (111) through which a connecting rope can pass. The bladder (2) fits against the end edge (12) of the support body (1) and extends toward the inner wall of the support body (1), thereby forming a connecting section (21) on the inner wall of the support body (1).
2. A marine fender buoy according to claim 1, characterised in that The support (1) includes an outwardly protruding connecting plate (13), the lower end face of which forms the end edge (12), and the connecting plate (13) is integrally formed with the ear part (11).
3. A marine fender buoy according to claim 2, characterised in that The support (1) is provided with a connecting rib (14), which extends from the hanging ear (11) to the connecting plate (13).
4. A marine fender buoy according to claim 3, characterised in that The support (1) is provided with a groove (15), the groove (15) has a side wall, the side wall of the groove (15) gradually narrows along the connecting plate (13) toward the hanging ear (11), and the side of the hanging ear (11) is divided to form the connecting rib (14).
5. A marine fender buoy according to claim 4, characterised in that, The ear-hanging part (11) has a connected arc surface (112) and a slope (113). The slope (113) gradually widens along the arc surface (112) toward the connecting plate (13). The groove (15) is located on the slope (113).
6. A marine fender buoy according to claim 3, characterised in that The ear-hanging part (11) is provided with two baffles (114), and the hole wall at the perforation (111) is smoothly connected to the two baffles (114).
7. A marine fender buoy according to claim 6, characterised in that The support body (1) is provided with a raised support boss (16), which is used to connect the stop surface (114) and the connecting plate (13).
8. A marine fender buoy according to claim 1, characterised in that The support (1) is a rigid plastic part, and the capsule (2) is a soft plastic part.
9. A marine fender buoy according to claim 1, characterised in that The end edge (12) has a groove (17), which is wider on the outside and narrower on the inside.
10. A marine fender buoy according to claim 1, characterised in that The inner wall of the support (1) is provided with annular support ribs.