Marine anti-collision air bag

Abstract

The utility model relates to a marine anti-collision air bag, belongs to the field of marine devices, and provides the marine anti-collision air bag aiming at the problem that an existing marine anti-collision air bag is insufficient in strength and prone to cracking at a pull ring, the marine anti-collision air bag comprises an internal part and an external part which are integrally formed in a composite mode, and the strength of the internal part is larger than that of the external part; the outer part is a plastic part, the outer part wraps the surface of the inner part to form a pull ring and extends outwards to form a bag body connected with the pull ring into a whole, a filling opening is formed in the bag body, and the bag body can be filled with contents through the filling opening. The plastic outer part can protect the built-in part, the forming and manufacturing requirements of the built-in part can be reduced, the outer part wraps and is fixedly connected with the built-in part through contractility generated when the plastic material is solidified, the forming performance is good, defects are few, and the built-in part and the plastic outer part are high in bonding strength and not prone to stripping due to the layered structure; the strength of the built-in part is greater than that of the external part, so that the local reinforcing and thickening effects are achieved; the built-in piece and the outer piece which are compounded into a whole are subjected to double stress, the strength of the pull ring is obviously improved, and it is guaranteed that the pull ring is not prone to cracking.

Description

Technical Field

[0001] The utility model belongs to the field of marine devices, and particularly relates to a marine anti-collision airbag. Background Art

[0002] Existing marine anti-collision airbags have a hollow airbag body. Pull rings with perforations are provided at both ends of the airbag body, and ropes, steel cables, etc. pass through the pull rings to fix the marine anti-collision airbag. Marine anti-collision airbags mainly adopt rotational molding or slush molding processes. The raw materials are in liquid or paste form. Through a mold composed of two parts combined into a whole, under heating and by means of rotational centrifugal force, the raw materials are rolled and formed inside the mold. In existing marine anti-collision airbags, the airbag body and the pull rings are made in two ways. One is to integrally heat and form with the same raw materials. Usually, two hollow molds are combined into a sealed whole and then heated and formed. To ensure the anti-collision effect, the airbag body needs to have a certain degree of flexibility. Therefore, the texture of the whole product is relatively soft after forming. After being filled with gas, the flexible airbag has a better anti-collision effect. However, due to process limitations, the formed pull rings are relatively soft and have a hollow structure, resulting in insufficient strength of the pull rings. When subjected to external forces, the marine anti-collision airbag shakes, the friction between the rope and the side wall of the perforation of the pull ring increases, and the pull ring is prone to cracking and failure, and then the anti-collision airbag drops off, losing the anti-collision effect. The other is to use a mold that is integrally divided into three parts to make the anti-collision airbag. The part in the middle area is used to make the airbag body, the parts in the two end areas are used to make the pull rings, and a PVC film is used to separate the adjacent areas. Hard raw materials are added to both end parts, and soft raw materials are added to the middle part. During the heating and forming process, the PVC diaphragm softens and bonds the two raw materials with different softness and hardness, and then the pull rings and the airbag body are connected as a whole to form a marine anti-collision airbag. Among them, the pull ring part is formed by using hard raw materials, and the airbag body is formed by using soft raw materials. However, this method also has defects: the pull ring part can only be made into a hollow structure due to process limitations, and the PVC film still exists between the airbag body and the pull ring parts after softening and shaping, and does not disappear or merge with the two parts into one body, which results in an obvious interface at the PVC film between the pull ring and the airbag body, and the connection strength between the pull ring and the airbag body is insufficient. Summary of the Utility Model

[0003] Aiming at the problems of insufficient connection strength and easy cracking caused by the unreasonable structure of existing marine anti-collision airbags, the utility model provides a marine anti-collision airbag, which plays a role in local strengthening by setting an internal part with better bearing capacity, and the external part wraps the internal part to form a reliable connection, effectively enhancing the connection strength between the pull ring and the airbag body.

[0004] The technical solution adopted by the utility model is as follows: A marine anti-collision airbag includes an integrally composite-molded internal part and an external part,

[0005] The strength of the internal part is greater than that of the external part;

[0006] The outer part is a plastic part. The outer part wraps the surface of the inner part to form a pull ring and extends to form a bladder integrally connected to the pull ring. An inflation port is provided on the bladder, and the bladder can be inflated through the inflation port.

[0007] The outer part made of plastic is convenient for forming a contour with a smooth arc transition, can protect the inner part, optimize the shape, enrich the color, and also reduce the forming requirements of the inner part, reduce the subsequent processing procedures of the inner part blank, avoid scratching and cutting by the sharp edges of the inner part, and facilitate the production of personalized and differentiated workpieces; the outer part uses the shrinkage force generated during the solidification of the plastic material to wrap and fixedly connect the inner part, or uses the good fusion degree between the two to ensure the connection strength, with good forming performance and few defects. This inner and outer layer structure makes the combination strength of the two high and not easy to peel; the strength of the inner part is greater than that of the outer part, playing a role of local strengthening and thickening; the inner part and the outer part combined into one are stressed doubly, which can not only enhance the strength of the pull ring itself, but also improve the connection strength between the pull ring and the bladder, effectively avoiding the problem of affecting the use due to insufficient strength.

[0008] Further, the inner part includes a connecting end face, and the connecting end face is a concave arc surface facing the bladder. The outer part forms a connecting layer on the surface of the connecting end face, and the connecting layer is integrally connected to the bladder. During forming, the connecting layer is integrally connected to the bladder, enhancing the connection performance between the inner part and the outer part.

[0009] Further, the connecting end face has a plurality of grooves arranged at intervals. This setting can increase the connection area between the inner part and the outer part. The outer part is embedded in the grooves, which can increase the connection strength.

[0010] Further, the inner part is provided with a hollow part. Both ends of the hollow part protrude from the surface of the inner part. The hollow part is convenient for a rigid connecting rope to pass through. Its protruding from the surface of the inner part also plays an extending role to avoid excessive local stress. The outer part wraps the hollow part to form a perforation of the pull ring. Since the inner part plays a role of local thickening and strengthening, when the rigid rope passes through the perforation, it is not easy to directly break the inner part with greater strength.

[0011] Further, both sides of the inner part respectively have inclined end faces. The hollow part is connected to the two inclined end faces, and the inclined end faces are gradually widened toward the connecting end face. The inclined end faces can increase the connection area between the outer part and the inner part, and no abrupt sharp angles will be generated to avoid the inner part cutting the inside of the outer part.

[0012] Further, the inner part has a circular arc surface. One end of the inclined end face is connected to the circular arc surface, and the other end is connected to the connecting end face. The circular arc surface is convenient for forming a smooth contour.

[0013] Furthermore, the side wall of the capsule has an integrally formed rib, which is arranged along the axial direction of the capsule to play a role of local reinforcement and significantly improve the anti-collision strength of the capsule. In addition, the capsule has a certain gravity after being filled with material, and the rib can also increase its own anti-deformation ability.

[0014] Furthermore, a hollow cylindrical member is pre-buried in the outer member to form the inflation port, and the inflation port is close to the pull ring. The cylindrical member can play a role of local reinforcement to prevent the inflation port from being squeezed and deformed to cause leakage.

[0015] Furthermore, two of the built-in components are provided, which are respectively located at two ends of the capsule body.

[0016] The beneficial effects of the utility model are as follows: the present application is a marine anti-collision airbag, the outer part made of plastic can protect the inner part, optimize the shape, enrich the color, and can also reduce the molding and manufacturing requirements of the inner part, and reduce the subsequent processing steps of the inner part blank, avoid scratches and cuts on the sharp edges of the inner part, and facilitate the production of personalized and differentiated workpieces; the outer part uses the shrinkage force generated when the plastic material solidifies to wrap and fix the inner part, with good molding performance and few defects, and the layered structure makes the combination strength of the two high and not easy to peel off; the strength of the inner part is greater than that of the outer part, which plays a role of local enhancement and thickening; the inner part and the outer part that are composited into one are subjected to double force, which significantly improves the overall strength and effectively avoids the problem of affecting use due to insufficient strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a marine anti-collision airbag (partial section);

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the built-in parts;

[0019] Figure 3 It is a schematic diagram of the side structure of the built-in component;

[0020] Figure 4 It is a schematic diagram of the connection end surface structure;

[0021] Figure 5 It is a schematic diagram of the plane structure of the built-in parts;

[0022] Among them: 1-internal component; 11-connecting end surface; 111-groove; 12-hollow part; 13-inclined end surface; 14-arc surface; 2-external component; 3-pull ring; 31-perforation; 4-bladder body; 41-convex rib; 5-inflating port. DETAILED DESCRIPTION

[0023] The following will explain and illustrate the technical solutions of the embodiments of the present utility model in conjunction with the accompanying drawings of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0024] This embodiment is a marine anti-collision airbag. As Figures 1 to 5 shown, Figure 1 in which there is a partial sectional view, it can be seen that the marine anti-collision airbag in this embodiment includes an inner member 1 and an outer member 2 formed by integral composite molding.

[0025] The inner member 11 has the shape and function of a pull ring, and its strength is greater than that of the outer member 2; preferably a hard plastic part.

[0026] The outer member 2 is a soft plastic part. The outer member 2 wraps the surface of the inner member 1 to form a pull ring 3 and extends outward to form a bladder 4 connected to the pull ring 3 as a whole. An inflation port 5 is provided on the bladder 4, and the bladder 4 can be inflated through the inflation port 5.

[0027] The hard plastic part provides sufficient strength, and the bladder formed by the soft plastic part has good flexibility. Wrapping the surface of the hard plastic part can also prevent the hard plastic part from falling out. Moreover, when the hard plastic part and the soft plastic part are molded, the fusion degree is good and the bonding strength is high. The outer member 2 made of plastic material is convenient for forming a rounded transition contour, can protect the inner member 1, optimize the shape, enrich the color, and can also reduce the molding production requirements of the inner member 1, reduce the subsequent processing procedures of the blank of the inner member 1, avoid scratching and cutting of the sharp edges of the inner member 1, and is convenient for making personalized and differentiated workpieces; the outer member 2 can use the shrinkage force generated when the plastic material solidifies to wrap and fixedly connect the inner member 1, or use the good fusion degree between the two to ensure the connection strength, with good molding performance and few defects. This inner and outer layer structure makes the combination strength of the two high and not easy to peel off; the strength of the inner member 1 is greater than that of the outer member 2, playing a role of local strengthening and thickening; the integrally formed inner member 1 and outer member 2 are stressed doubly, which can not only enhance the strength of the pull ring itself but also improve the connection strength between the pull ring and the bladder, effectively avoiding the problem that the pull ring 3 is broken due to insufficient strength.

[0028] The inner member 1 includes a connection end face 11, and the connection end face 11 is a concave arc surface facing the bladder 4. The outer member 2 forms a connection layer on the surface of the connection end face 11, and this connection layer is connected to the bladder 4 as a whole. During molding, the connection layer is connected to the bladder 4 as a whole, enhancing the connection performance between the inner member 1 and the outer member 2.

[0029] The connection end surface 11 has a plurality of grooves 111 arranged at intervals. This arrangement can increase the connection area between the internal component 1 and the external component 2. The external component 2 is embedded in the grooves 111, which can increase the connection strength.

[0030] The inner component 1 is provided with a hollow part 12, and both ends of the hollow part 12 protrude from the surface of the inner component 1. The hollow part 12 is convenient for the rigid connecting rope to pass through, and the protrusion from the surface of the inner component 1 also plays an extension role to prevent excessive local force. The outer component 2 covers the hollow part 12 to form a through hole 31 of the pull ring 3. Since the inner component 1 plays a role of local thickening and strengthening, when the rigid rope passes through the through hole 31, it is not easy to directly break the inner component 1 with relatively large strength.

[0031] The inner component 1 has inclined end faces 13 on both sides, and the hollow portion 12 is connected to the two inclined end faces 13, and the inclined end faces 13 are gradually expanded toward the connecting end face 11. The inclined end faces can increase the connection area between the outer component 2 and the inner component 1, and no abrupt sharp angle will be generated to prevent the inner component 1 from cutting the inner part of the outer component 2.

[0032] The built-in component 1 has an arc surface 14 . One end of the inclined end surface 13 is connected to the arc surface 14 , and the other end is connected to the connecting end surface 11 . The arc surface 14 is convenient for forming a smooth contour.

[0033] The side wall of the capsule 4 has an integrally formed rib 41, which is arranged along the axial direction of the capsule 4 to play a role of local reinforcement and significantly improve the anti-collision strength of the capsule 4. In addition, the capsule 4 has a certain gravity after being filled with substances, and the rib 41 can also increase its own anti-deformation ability.

[0034] The hollow cylindrical member is pre-buried in the outer member 2 to form the inflation port 5, and the inflation port 5 is close to the pull ring 3. The cylindrical member can play a role of local reinforcement to prevent the inflation port 5 from being squeezed and deformed to cause leakage.

[0035] There are two inner parts 1, which are respectively located at the two ends of the bag body 4. Correspondingly, there are two pull rings. This arrangement is convenient for fixing the two ends of the ship anti-collision airbag to prevent the ship anti-collision airbag from flying up when impacted by external force and causing safety accidents.

[0036] The internal parts are injection molded in advance, and the raw materials for making the external parts will soften and become liquid after being exposed to high temperature. During production, the two already formed internal parts are first placed at the two ends of the mold, fixed with the slots on the mold, and then the external parts raw materials are added. After covering the mold, the external parts raw materials will flow in the mold and then cover the internal parts. After a certain period of curing and molding, the external parts will be firmly bonded to the surface of the internal parts.

[0037] As described above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Those skilled in the art should understand that the present utility model includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the present utility model will be included within the scope of the claims.

Claims

1. A marine anti-collision airbag, characterized in that: It comprises an internal component and an external component (2) formed in one piece. The internal component (1) has a strength greater than that of the external component (2); The outer part (2) is a plastic part. The outer part (2) covers the surface of the inner part (1) to form a pull ring (3), and extends outward to form a bladder (4) connected to the pull ring (3). The bladder (4) is provided with an inflation port (5).

2. The marine anti-collision airbag according to claim 1, characterized in that: The internal component (1) comprises a connection end surface (11), wherein the connection end surface (11) is a concave arc surface facing the capsule (4), and the external component (2) forms a connection layer on the surface of the connection end surface (11), wherein the connection layer is integrally connected to the capsule (4).

3. The marine anti-collision airbag according to claim 2, characterized in that: The connecting end surface (11) has a plurality of grooves (111) arranged at intervals.

4. The marine anti-collision airbag according to claim 2, characterized in that: The inner component (1) is provided with a hollow portion (12), the two ends of the hollow portion (12) protrude from the surface of the inner component (1), and the outer component (2) covers the hollow portion (12) to form a through hole (31) of the pull ring (3).

5. The marine anti-collision airbag according to claim 4, characterized in that: The two sides of the built-in component (1) are respectively provided with inclined end surfaces (13); the hollow portion (12) is connected to the two inclined end surfaces (13); and the inclined end surfaces (13) are gradually expanded toward the connecting end surface (11).

6. The marine anti-collision airbag according to claim 5, characterized in that: The built-in component (1) has an arc surface (14); one end of the inclined end surface (13) is connected to the arc surface (14), and the other end is connected to the connecting end surface (11).

7. The marine anti-collision airbag according to claim 1, characterized in that: The side wall of the capsule (4) is provided with an integrally formed convex rib (41), and the convex rib (41) is arranged along the axial direction of the capsule (4).

8. The marine anti-collision airbag according to claim 1, characterized in that: A hollow cylindrical member is pre-buried in the outer member (2) to form the inflation port (5), and the inflation port (5) is close to the pull ring (3).

9. The marine anti-collision airbag according to claim 1, characterized in that: The inner parts (1) are provided with two, which are respectively located at the two ends of the capsule (4).

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