Fender anti-collision structure for a rescue work boat

CN224829539UActive Publication Date: 2026-10-09WUXI HONGSHENG SHIP GLASS FIBRE REINFORCED PLASTIC CO LTD
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Patent Information

Application Number
CN202522312998.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-31
Publication Date
2026-10-09
Estimated Expiration
2035-10-31

AI Technical Summary

Technical Problem

[0003]现有技术中的救助工作艇护舷主要基于弹性变形和能量吸收的原理来发挥防护作用,通常采用橡胶护舷,当救助工作艇与其他物体发生碰撞时,护舷首先与碰撞物体接触,由于橡胶材料具有优异的弹性,在受到外力撞击时,会发生明显的变形,这种变形能够将碰撞产生的动能转化为橡胶的弹性势能,从而吸收和分散大部分冲击力,实现对救助工作艇的保护;然而由于现有技术中救助工作艇护舷仅仅采用橡胶组成,虽可以有效对碰撞力进行缓冲,但是在遇到尖锐面撞击时,表面缺乏防护,橡胶护舷极易出现破损,进而会降低其缓冲能力,由于护舷破损未能有效吸收冲击力,从而会导致船体受撞击力出现破损裂缝,降低了使用的安全性

Benefits of technology

本实用新型通过缓冲组件采用了多级缓冲抗冲击设计,通过挡垫的柔韧性,它能够初步吸收和分散一部分冲击力,且抵挡板能够有效抵御尖锐物体的穿刺,其次弹簧能够在碰撞时发生弹性变形,吸收一部分冲击力,阻尼器可以进一步消耗能量,减缓弹簧的反弹速度,使冲击力的吸收更加平稳和有效,此外,橡胶囊也具有一定的弹性,能够吸收和分散剩余的冲击力,这种多级缓冲的设计,能够更好地应对不同程度的碰撞,为救助工作艇提供更可靠的防护。

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Abstract

The utility model provides a kind of fender anti-collision structure of rescue work boat, it is related to rescue work boat fender field, including, installation component, including rubber sleeve, and titanium alloy plate fixedly connected in the inner chamber of the rubber sleeve;Buffering component, including spring, damper being arranged in the inner chamber of the spring, resistance plate being fixedly connected to the front of the spring;The utility model can preliminarily absorb and disperse a part of impact force by the flexibility of fender pad, and resistance plate can effectively resist the penetration of sharp object, secondly, spring can be elastically deformed when colliding, absorb a part of impact force, damper can further consume energy, slow down the rebound speed of spring, make the absorption of impact force more stable and effective, in addition, rubber capsule also has certain elasticity, can absorb and disperse remaining impact force, the design of this multistage buffering can better cope with collisions of different degrees, provide more reliable protection for rescue work boat.
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Description

Technical Field

[0001] This utility model belongs to the field of fenders for rescue workboats, specifically a fender anti-collision structure for rescue workboats. Background Technology

[0002] As a key piece of equipment in maritime and water rescue missions, rescue workboats undertake important missions such as personnel rescue, material transportation, and emergency support in complex and dangerous waters. During the rescue process, workboats often need to approach wrecked vessels, floating obstacles, or other objects that may collide with them in order to complete rescue operations. Among them, the fender, as an important protective component of the rescue workboat, is installed around the hull. Its core function is to reduce the impact force on the hull during a collision, protect the hull structure from serious damage, and at the same time ensure the safety of rescue personnel and equipment on board.

[0003] Existing rescue boat fenders primarily function based on the principles of elastic deformation and energy absorption, typically employing rubber fenders. When a rescue boat collides with another object, the fender is the first to come into contact with it. Due to the excellent elasticity of rubber, it deforms significantly upon impact, converting the kinetic energy generated by the collision into the elastic potential energy of the rubber, thereby absorbing and dispersing most of the impact force and protecting the rescue boat. However, because existing rescue boat fenders are composed solely of rubber, while they can effectively buffer the impact force, the lack of surface protection makes them highly susceptible to damage when encountering sharp surfaces. This reduces their buffering capacity. Damaged fenders fail to effectively absorb the impact force, leading to cracks and damage to the hull, thus reducing operational safety.

[0004] In summary, this utility model provides a fender anti-collision structure for a rescue workboat to solve the above problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A fender collision avoidance structure for a rescue workboat includes, The mounting components include a rubber sleeve and a titanium alloy plate fixedly connected to the inner cavity of the rubber sleeve; The buffer assembly includes a spring, a damper disposed in the inner cavity of the spring, a stop plate fixedly connected to the front of the spring, a retaining pad movably connected to the front of the stop plate, and a rubber bladder disposed between the rubber sleeve and the stop plate.

[0006] Furthermore, in this utility model, the back of both the spring and the damper are fixedly connected to the rubber sleeve, and there are four springs and four dampers, which are evenly distributed around the front of the rubber sleeve.

[0007] Furthermore, in this utility model, both sides of the front of the rubber sleeve are fixedly connected to a limiting cylinder, and a sliding rod is slidably connected to the inner cavity of the limiting cylinder, with one end of the sliding rod fixedly connected to the back of the baffle plate.

[0008] Furthermore, in this utility model, both ends of the rubber bladder are fixedly connected to connecting sleeves, and the limiting cylinder and the sliding rod are both located in the inner cavity of the connecting sleeve and are slidably connected to the inner cavity of the connecting sleeve.

[0009] Furthermore, in this utility model, mounting pieces are fixedly connected to both sides of the top and bottom of the rubber sleeve, and the front of the mounting piece is provided with a connection hole.

[0010] Furthermore, in this utility model, both sides of the back of the baffle are fixedly connected with a card plate, and both sides of the front of the baffle are provided with a card groove. The card plate extends into the inner cavity of the card groove and engages with the inner cavity of the card groove.

[0011] Furthermore, in this invention, a rubber strip is fixedly connected to the surface of the rubber bladder, and the rubber strip is in contact with the back of the baffle plate and the front of the rubber sleeve.

[0012] Beneficial effects: This utility model has the following beneficial effects: This invention employs a multi-stage buffering and impact-resistant design in its buffer components. The flexibility of the baffle pad initially absorbs and disperses some of the impact force, while the baffle plate effectively resists punctures from sharp objects. Secondly, the spring undergoes elastic deformation upon impact, absorbing some of the impact force. The damper further dissipates energy and slows the spring's rebound speed, making impact absorption more stable and effective. Furthermore, the rubber bladder also possesses elasticity, absorbing and dispersing the remaining impact force. This multi-stage buffering design better copes with collisions of varying degrees, providing more reliable protection for rescue workboats. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the baffle and the baffle pad in the separated state of this utility model; Figure 3 This is a schematic diagram of the rubber bladder structure of this utility model; Figure 4 This is a partial cross-sectional view of the rubber sleeve of this utility model.

[0014] In the picture: 100. Mounting component; 110. Rubber sleeve; 111. Mounting piece; 120. Titanium alloy plate; 200. Buffer component; 210. Spring; 220. Damper; 230. Stop plate; 231. Limiting sleeve; 232. Slot; 240. Stop pad; 241. Clamping plate; 250. Rubber bladder; 251. Connecting sleeve. Detailed Implementation

[0015] To better understand the technical content of this utility model, specific embodiments are described below in conjunction with the accompanying drawings. Various aspects of this utility model are described in this disclosure with reference to the accompanying drawings, which illustrate numerous illustrative embodiments. The embodiments of this disclosure are not necessarily defined to include all aspects of this utility model. It should be understood that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in this utility model are not limited to any particular implementation. Furthermore, some aspects of this utility model can be used alone or in any suitable combination with other aspects disclosed in this utility model.

[0016] Example 1 like Figure 1-4 As shown, this is the first embodiment of the present invention, which provides a fender anti-collision structure for a rescue workboat, including, Mounting assembly 100 includes a rubber sleeve 110 and a titanium alloy plate 120 fixedly connected to the inner cavity of the rubber sleeve 110. The buffer assembly 200 includes a spring 210, a damper 220 disposed in the inner cavity of the spring 210, a stop plate 230 fixedly connected to the front of the spring 210, a retainer 240 movably connected to the front of the stop plate 230, and a rubber bladder 250 disposed between the rubber sleeve 110 and the stop plate 230.

[0017] like Figure 1-4 As shown, the baffle 240 first contacts the colliding object to initially absorb and disperse some of the impact force. The baffle 230 moves backward under the action of the impact force. The baffle 230 has high strength and good toughness and can resist the puncture of sharp objects, thus protecting the rubber bladder 250 on its back from puncture damage. At the same time, the baffle 230 will compress the spring 210 and the damper 220, thereby consuming the impact energy and further absorbing some of the impact force, making the absorption of impact force more stable. Since the rubber bladder 250 has a certain degree of elasticity, it can absorb and disperse the remaining impact force. This multi-level buffer design can better cope with collisions of different degrees and provide more reliable protection for the rescue workboat.

[0018] Example 2 Reference Figure 1 and 3This is the second embodiment of the present invention, which is based on the previous embodiment.

[0019] In this embodiment, the back sides of the spring 210 and the damper 220 are fixedly connected to the rubber sleeve 110. There are four springs 210 and four dampers 220, which are evenly distributed around the front of the rubber sleeve 110.

[0020] Both sides of the front of the rubber sleeve 110 are fixedly connected to the limiting cylinder 231. The inner cavity of the limiting cylinder 231 is slidably connected to the sliding rod, and one end of the sliding rod is fixedly connected to the back of the baffle plate 230.

[0021] Both ends of the rubber bladder 250 are fixedly connected to connecting sleeves 251. The limiting cylinder 231 and the sliding rod are both located in the inner cavity of the connecting sleeve 251 and are slidably connected to the inner cavity of the connecting sleeve 251.

[0022] like Figure 1 and 3 As shown, the backs of spring 210 and damper 220 are fixedly connected to rubber sleeve 110, and there are four springs 210 and four dampers 220, evenly distributed around the front of rubber sleeve 110. This layout can evenly buffer and disperse the impact force, effectively absorbing impact energy. The limiting cylinder 231, in conjunction with the sliding rod slidably connected to its inner cavity, provides precise guidance for the movement of the baffle 230. When a collision occurs, the baffle 230 moves backward under impact force, and the sliding rod slides within the limiting cylinder 231, restricting the baffle 230 to move only along the axis of the limiting cylinder 231. This prevents the baffle 230 from moving too far. During movement, if there is any deviation or shaking, the limiting cylinder 231 and the sliding rod are located in the inner cavity of the connecting sleeve 251 on both sides of the rubber bladder 250. This achieves a reliable connection between the rubber bladder 250 and the limiting cylinder 231, the sliding rod, the baffle plate 230, and the rubber sleeve 110. The connecting sleeve 251 tightly connects all the components together, ensuring that the rubber bladder 250 will not fall off or shift during the collision. Secondly, the limiting cylinder 231 and the sliding rod slide within the connecting sleeve 251, allowing the rubber bladder 250 to freely expand and contract with the movement of the baffle plate 230. During the collision, the rubber bladder 250 can be smoothly compressed and restored, ensuring the normal functioning of its cushioning function.

[0023] Example 3 Reference Figure 1-4 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0024] In this embodiment, mounting pieces 111 are fixedly connected to both the top and bottom sides of the rubber sleeve 110, and a connection hole is provided on the front side of the mounting piece 111.

[0025] Both sides of the back of the baffle 240 are fixedly connected with a card plate 241, and both sides of the front of the baffle 230 are provided with a slot 232. The card plate 241 extends into the inner cavity of the slot 232 and engages with the inner cavity of the slot 232.

[0026] A rubber strip is fixedly connected to the surface of the rubber bladder 250, and the rubber strip is in contact with the back of the baffle 230 and the front of the rubber sleeve 110.

[0027] like Figure 1-4 As shown, mounting plates 111 are fixedly connected to both sides of the top and bottom of the rubber sleeve 110. These mounting plates 111 improve the ease of installation. During installation, installers can connect and install the fenders using bolts or ropes according to the connection holes on the mounting plates 111, thereby accurately placing the fenders at the predetermined positions on the ship's side. This ensures that the fenders are evenly distributed around the ship's side, achieving the best protective effect. The interlocking structure between the clamping plate 241 and the clamping groove 232 provides a stable connection, ensuring that the fender 240 will not loosen or shift during a collision. It also makes the installation and removal of the fender 240 very convenient and quick. When installing the fender 240, simply align the clamping plate 241 with the clamping groove 232. 2. Then, gently press the baffle 240 in, and the retaining plate 241 will be firmly locked in the retaining groove 232, completing the installation. Similarly, when it is necessary to remove the baffle 240 for replacement, simply pull the baffle 240 along the retaining groove 232 with a little force, and the retaining plate 241 will come out of the retaining groove 232, achieving quick disassembly and reducing maintenance time and cost. The rubber strip on the surface of the rubber bladder 250 has a high coefficient of friction, which can increase the friction between the rubber bladder 250 and the baffle 230 and the rubber sleeve 110. During the collision, when the rubber bladder 250 is squeezed and deformed, the rubber strip can prevent the rubber bladder 250 from sliding between the baffle 230 and the rubber sleeve 110, ensuring that the rubber bladder 250 can stably play a buffering role.

[0028] In use, the fender is initially fixed to the ship's side by bolts or ropes passing through the connecting holes of the mounting plate 111. Due to the flexibility of the rubber sleeve 110 and the titanium alloy plate 120, they can fit snugly against the hull according to its curves and shape. After installation, when the rescue boat collides with other objects, the baffle 240 first contacts the colliding object. Because of its flexibility, the baffle 240 can initially absorb and disperse some of the impact force, reducing direct impact on the subsequent buffer assembly 200. As the collision continues, the impact force is transferred to the abutment plate 230. The abutment plate 230 has high strength and good toughness, capable of resisting punctures from sharp objects, thus protecting its back rubber bladder 250 from puncture damage. Then, under the impact force, the abutment plate 230 moves backward, compressing the spring 210 and the damper. 220. Spring 210 undergoes elastic deformation, converting the impact force into elastic potential energy for storage. Damper 220 dissipates energy through its internal damping medium, slowing down the rebound speed of spring 210 and making the absorption of impact force more stable. During this process, limit cylinder 231 and slide rod act as guides, ensuring that baffle 230 moves in the correct direction and avoiding deviation or swaying. While spring 210 and damper 220 are working, rubber bladder 250 is also compressed. Rubber bladder 250 has a certain degree of elasticity, which can further absorb and disperse the remaining impact force. The rubber strips on the surface of rubber bladder 250 contact the back of baffle 230 and the front of rubber sleeve 110, increasing friction and helping to better transfer and disperse energy. Through the multi-stage buffer design, it can better cope with collisions of different degrees, providing more reliable protection for rescue workboats.

[0029] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0030] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A fender anti-collision structure for a rescue workboat, characterized in that: include, The mounting assembly (100) includes a rubber sleeve (110) and a titanium alloy plate (120) fixedly connected to the inner cavity of the rubber sleeve (110). The buffer assembly (200) includes a spring (210), a damper (220) disposed in the inner cavity of the spring (210), a stop plate (230) fixedly connected to the front of the spring (210), a retainer (240) movably connected to the front of the stop plate (230), and a rubber bladder (250) disposed between the rubber sleeve (110) and the stop plate (230).

2. The anti-collision structure of the fender of the rescue workboat as described in claim 1, characterized in that: The back of the spring (210) and the damper (220) are fixedly connected to the rubber sleeve (110). There are four springs (210) and four dampers (220), which are evenly distributed around the front of the rubber sleeve (110).

3. The anti-collision structure of the fender of the rescue workboat as described in claim 1, characterized in that: Both sides of the front of the rubber sleeve (110) are fixedly connected to the limiting cylinder (231), and the inner cavity of the limiting cylinder (231) is slidably connected to the sliding rod, and one end of the sliding rod is fixedly connected to the back of the baffle plate (230).

4. The anti-collision structure of the fender of the rescue workboat as described in claim 3, characterized in that: Both ends of the rubber bladder (250) are fixedly connected to connecting sleeves (251). The limiting cylinder (231) and the sliding rod are both located in the inner cavity of the connecting sleeve (251) and are slidably connected to the inner cavity of the connecting sleeve (251).

5. The anti-collision structure of the fender of the rescue workboat as described in claim 1, characterized in that: The top and bottom sides of the rubber sleeve (110) are fixedly connected with mounting plates (111), and the front of the mounting plate (111) has a connection hole.

6. The anti-collision structure of the fender of the rescue workboat as described in claim 1, characterized in that: Both sides of the back of the baffle (240) are fixedly connected with a card plate (241), and both sides of the front of the baffle (230) are provided with a card groove (232). The card plate (241) extends into the inner cavity of the card groove (232) and engages with the inner cavity of the card groove (232).

7. The anti-collision structure of the fender of the rescue workboat as described in claim 1, characterized in that: A rubber strip is fixedly connected to the surface of the rubber bladder (250), and the rubber strip is in contact with the back of the baffle plate (230) and the front of the rubber sleeve (110).