Marine Refrigerated Container Maintenance and Operation Platform
By designing a maintenance and operation platform for marine refrigerated containers and utilizing the connection between the lashing bridge and the corner fitting holes of the container, the problem of inconvenient maintenance of refrigerated containers has been solved, enabling convenient inspection and repair of refrigeration units and improving maintenance efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUSN LUCKY SEA IND
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-26
AI Technical Summary
The gap between the refrigerated container and the lashing bridge makes it difficult for staff to directly access the refrigeration unit for inspection, cleaning, debugging and maintenance, resulting in maintenance inconvenience.
A maintenance and operation platform for marine refrigerated containers was designed, including safety railings and a platform frame. The platform is stably installed by connecting the lashing bridge to the corner fitting holes of the container. The platform's stability and safety are ensured by using a locking mechanism of movable head and limit blocks.
This allows staff to access the refrigeration unit safely and conveniently, improving maintenance efficiency and quality, enabling timely detection of potential equipment problems, reducing installation difficulty and costs, and ensuring personal safety.
Smart Images

Figure CN224277516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of marine transportation equipment technology, and in particular to a maintenance and operation platform for marine refrigerated containers. Background Technology
[0002] In modern maritime logistics, refrigerated containers are key equipment for transporting temperature-sensitive goods such as fresh fruits and vegetables, meat, and pharmaceuticals. During shipping, to make full use of cargo hold space, refrigerated containers are usually stacked in multiple layers and placed next to the lashing bridge. The lashing bridge is an important structure on the ship used to secure containers. Through specially designed lashing components, a firm connection is established between the refrigerated container and the lashing bridge. This lashing operation is crucial, as it can effectively resist the impact of external forces such as wind, waves, and ship rolling during sea voyages, and ensure the safety and integrity of cargo transportation.
[0003] Since the normal operation of refrigerated containers plays a decisive role in the quality and safety of goods, their maintenance and upkeep are essential. On the one hand, regular maintenance ensures the stable operation of the refrigeration system, accurately controls the temperature and humidity inside the container, maintains an ideal refrigerated environment, and prevents goods from spoiling due to abnormal temperatures. On the other hand, comprehensive maintenance helps to promptly identify and eliminate potential safety hazards, such as aging electrical wiring and overheating of refrigeration equipment, thereby avoiding serious safety accidents such as fires and ensuring the safety of crew and ships.
[0004] Among the many components of refrigerated containers that require maintenance, the exposed refrigeration unit is particularly critical. As the core component for achieving refrigeration, the refrigeration unit is exposed to the external environment for a long time and is easily affected by marine climate factors such as high humidity, salt spray corrosion, and wind and wave impact. This will accelerate the aging and damage of the equipment. However, in actual ship maintenance operations, due to the certain distance between the lashing bridge and the refrigerated container, it is difficult for staff to directly reach the location of the refrigeration unit for inspection, cleaning, debugging and maintenance, thus resulting in maintenance inconvenience. Utility Model Content
[0005] In order to overcome the defects of the prior art as mentioned above, the inventors of this utility model have conducted in-depth research and, after a great deal of creative work, have completed this utility model.
[0006] Specifically, the technical problem to be solved by this utility model is to provide a maintenance and operation platform for marine refrigerated containers, so as to solve the problem that there is a certain distance between the lashing bridge and the refrigerated container, making it difficult for staff to directly reach the location of the refrigeration unit for inspection, cleaning, debugging and maintenance, resulting in inconvenience in maintenance.
[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:
[0008] A maintenance and operation platform for marine refrigerated containers includes safety railings. Two sets of safety railings are provided and correspond to each other. A platform frame is installed between the two sets of safety railings. Each set of safety railings has a movable head on one side, and the movable heads are located on both sides of the platform frame. The safety railings have a first connecting groove and a second connecting groove inside. The first connecting groove is located on top of the second connecting groove. The first connecting groove and the second connecting groove are arranged in pairs.
[0009] As an improved technical solution, a first limiting block and a second limiting block are installed on one side of the safety guardrail. The first limiting block is located on top of the second limiting block. The first limiting block and the second limiting block have a double-layer structure on the side near the safety guardrail, and they are located on both sides of the safety guardrail respectively, corresponding to the first connecting groove and the second connecting groove.
[0010] As an improved technical solution, the first limiting block, the second limiting block, and the safety guardrail are connected by fastening bolts. One end of the fastening bolt extends to the inner side of the first limiting block and the second limiting block, passes through the safety guardrail through the first connecting groove and the second connecting groove, and extends to the outside of the first limiting block and the second limiting block.
[0011] As an improved technical solution, the inner side of the safety railing has a sleeve, which is located between the first connecting groove and the second connecting groove. The sleeve is in the shape of a rounded rectangle. A connecting rod is movably connected inside the sleeve. One end of the connecting rod has a retaining ring. A gasket is provided on one side of the safety railing. One end of the connecting rod passes through the sleeve and extends to the outside of the safety railing to connect with the gasket.
[0012] As an improved technical solution, the movable head is located on the outer surface of the connecting rod and is movably connected to it. The movable head is also located between the retaining ring and the safety railing. The movable head has an L-shaped limiting block on the side near the retaining ring, and the L-shaped limiting block is located on one side of the safety railing.
[0013] As an improved technical solution, the end of the connecting rod away from the movable head has an assembly bolt, the assembly bolt is located on one side of the washer, the outer surface of the assembly bolt is threaded with an assembly nut, and the washer is located between the safety guardrail and the assembly nut.
[0014] As an improved technical solution, connecting blocks are fixedly connected to both sides of the platform frame. The connecting blocks are in pairs and correspond to each other. The inner side of each pair of connecting blocks is provided with a slot. The inner side of the slot is arc-shaped. The slot is located on the outer surface of the sleeve and is movably connected to it.
[0015] As an improved technical solution, the inner side of the connecting block is provided with an L-shaped connecting guide block, the L-shaped connecting guide block is located at the bottom of the sleeve, the L-shaped connecting guide block is connected to the connecting block by a connecting bolt, the inner side of the L-shaped connecting guide block is provided with a connecting nut, the connecting nut is located on the outer surface of the connecting bolt and is threadedly connected to it, and the L-shaped connecting guide block is located between the connecting block and the connecting nut.
[0016] As an improved technical solution, the safety railing is made of aluminum alloy hollow tubes, the outer surface of the safety railing is provided with anti-slip patterns, the platform frame is installed with anti-slip plates, the platform frame and the anti-slip plates are respectively made of aluminum alloy hollow tubes and aluminum alloy patterned plates, and the surface of the anti-slip plates is provided with magnetic coating.
[0017] After adopting the above technical solution, the beneficial effects of this utility model are:
[0018] 1. This utility model allows the operating platform to be installed on the container by means of a lashing bridge, enabling workers to safely and conveniently access the refrigeration unit and other parts of the refrigerated container for comprehensive inspection, cleaning, debugging and maintenance, ensuring the efficiency and quality of maintenance work, and timely detection and handling of potential equipment hazards.
[0019] 2. This utility model, through the locking of the movable head and the corner fitting hole and the setting of the safety guardrail, makes the operating platform securely installed on the refrigerated container. The first limit block and the second limit block are locked with the edge of the container, which can prevent the platform from shaking or shifting, and ensure the personal safety of the staff during maintenance operations.
[0020] 3. This utility model allows for platform installation through simple operations such as rotating the movable head and loosening / tightening the nuts, reducing installation difficulty and saving installation time and labor costs.
[0021] 4. This utility model, by providing a magnetic coating on the surface of the anti-slip plate, makes it magnetic. Components placed inside, such as bolts, will not roll or move due to the magnetic coating, thus not affecting the construction workers and ensuring the safety of the workers during operation. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0023] Figure 1This is a schematic diagram of the overall structure of the marine refrigerated container maintenance and operation platform of this utility model.
[0024] Figure 2 This is a side view structural schematic diagram of the maintenance and operation platform for marine refrigerated containers of this utility model.
[0025] Figure 3 This utility model is a maintenance and operation platform for marine refrigerated containers. Figure 1 A magnified structural diagram of part A.
[0026] Figure 4 This is a schematic diagram of the platform frame structure of the marine refrigerated container maintenance and operation platform of this utility model.
[0027] Figure 5 This utility model is a maintenance and operation platform for marine refrigerated containers. Figure 4 A magnified structural diagram of part B in the diagram.
[0028] Figure 6 This is an exploded structural diagram of the sleeve and connecting rod of the marine refrigerated container maintenance and operation platform of this utility model.
[0029] Figure 7 This is a schematic diagram showing the positional relationship between the safety guardrail and the sleeve of the marine refrigerated container maintenance and operation platform of this utility model.
[0030] Figure 8 This is a schematic diagram of the operation of the marine refrigerated container maintenance platform of this utility model.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Safety railing; 101. Anti-slip pattern; 102. First connecting groove; 103. Second connecting groove; 104. Sleeve; 2. Platform frame; 201. Connecting block; 202. Slot; 203. L-shaped connecting guide block; 204. Connecting bolt; 205. Connecting nut; 206. Anti-slip plate; 3. Moving head; 301. L-shaped limit block; 302. Connecting rod; 303. Snap ring; 304. Washer; 305. Assembly bolt; 306. Assembly nut; 5. First limit block; 501. Fastening bolt; 6. Second limit block. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0035] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.
[0036] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.
[0037] like Figures 1 to 8 As shown in the figure, this embodiment provides a maintenance and operation platform for marine refrigerated containers. This maintenance and operation platform for marine refrigerated containers includes a safety guardrail 1, which has two sets of safety guardrails 1 that correspond to each other. A platform frame 2 is installed between the two sets of safety guardrails 1. Each side of the two sets of safety guardrails 1 is provided with a movable head 3. The two sets of movable heads 3 are located on both sides of the platform frame 2. The movable head 3 is a corner pin that can be inserted into the corner of the container to facilitate installation.
[0038] The safety railing 1 has a first connecting groove 102 and a second connecting groove 103 inside. The first connecting groove 102 is located on top of the second connecting groove 103. The first connecting groove 102 and the second connecting groove 103 are arranged in pairs. The first connecting groove 102 and the second connecting groove 103 can facilitate the installation and removal of the first limiting block 5 and the second limiting block 6.
[0039] A first limiting block 5 and a second limiting block 6 are installed on one side of the safety guardrail 1. The first limiting block 5 is located on top of the second limiting block 6. The first limiting block 5 and the second limiting block 6 are both double-layered on the side of the safety guardrail 1, and they are located on both sides of the safety guardrail 1 respectively. They correspond to the first connecting groove 102 and the second connecting groove 103, which can increase the stability and rigidity of the connection between the three. At the same time, when the safety guardrail 1 is installed, the first limiting block 5 and the second limiting block 6 are locked with the container to increase the stability of the operating platform.
[0040] The first limiting block 5, the second limiting block 6, and the safety railing 1 are connected by fastening bolts 501. One end of the fastening bolts 501 extends to the inner side of the first limiting block 5 and the second limiting block 6, passes through the safety railing 1 through the first connecting groove 102 and the second connecting groove 103, and extends to the outside of the first limiting block 5 and the second limiting block 6. Then, they are connected by fastening nuts to facilitate the installation and removal of the first limiting block 5 and the second limiting block 6, thereby increasing the stability of the operating platform.
[0041] The inner side of the safety railing 1 has a sleeve 104, which is located between the first connecting groove 102 and the second connecting groove 103. The sleeve 104 is in the shape of a rounded rectangle. The sleeve 104 can increase the mechanical strength of the safety railing 1, thereby ensuring the safety and load-bearing capacity of the safety railing 1.
[0042] The sleeve 104 is internally connected to a connecting rod 302. One end of the connecting rod 302 has a retaining ring 303. A gasket 304 is provided on one side of the safety guardrail 1. One end of the connecting rod 302 passes through the sleeve 104 and extends to the outside of the safety guardrail 1 to connect with the gasket 304, which facilitates the fixing of the movable head 3.
[0043] The movable head 3 is located on the outer surface of the connecting rod 302 and is movably connected to it. The movable head 3 is also located between the retaining ring 303 and the safety railing 1. The retaining ring 303 can easily limit and fix the movable head 3.
[0044] The movable head 3 has an L-shaped limiting block 301 on the side near the retaining ring 303. The L-shaped limiting block 301 is located on one side of the safety railing 1 and can be locked with the corner of the safety railing 1 to limit the position of the movable head 3 on the safety railing 1 and prevent it from turning over, thus affecting the function of the movable head 3 in the corner fitting hole. When the movable head 3 is installed in the corner fitting hole, the two protrusions on both sides of the end away from the L-shaped limiting block 301 can be locked on the two side walls of the corner fitting hole so that it can be locked in the corner fitting hole.
[0045] The end of the connecting rod 302 away from the movable head 3 has an assembly bolt 305. The assembly bolt 305 is located on one side of the washer 304. The outer surface of the assembly bolt 305 is threaded with an assembly nut 306. The washer 304 is located between the safety guardrail 1 and the assembly nut 306.
[0046] Both sides of the platform frame 2 are fixedly connected with connecting blocks 201. The connecting blocks 201 are in pairs and correspond to each other. The inner side of each pair of connecting blocks 201 is provided with a slot 202. The inner side of the slot 202 is arc-shaped. The slot 202 is located on the outer surface of the sleeve 104 and is movably connected to it.
[0047] The inner side of the connecting block 201 is provided with an L-shaped connecting guide block 203. The L-shaped connecting guide block 203 is located at the bottom of the sleeve 104. The L-shaped connecting guide block 203 is connected to the connecting block 201 by a connecting bolt 204. The inner side of the L-shaped connecting guide block 203 is provided with a connecting nut 205. The connecting nut 205 is located on the outer surface of the connecting bolt 204 and is threadedly connected to it. The L-shaped connecting guide block 203 is located between the connecting block 201 and the connecting nut 205.
[0048] Safety railing 1 is made of hollow aluminum alloy tube. The outer surface of safety railing 1 is provided with anti-slip pattern 101, which can increase friction and make it easier for workers to hold on and grip, thus having a high safety feature.
[0049] The platform frame 2 is equipped with an anti-slip plate 206. The platform frame 2 and the anti-slip plate 206 are made of aluminum alloy hollow tube and aluminum alloy checkered plate, respectively. The surface of the anti-slip plate 206 is coated with a magnetic coating. The anti-slip plate 206 helps construction workers to stand firmly and is not easy to slip, thus ensuring safety. At the same time, the magnetic coating makes it magnetic. Components such as bolts placed inside can be affected by the magnetic coating and will not roll or move, so as not to affect the construction workers' work.
[0050] In use, workers can use the lashing bridge as an auxiliary support point, then align the horizontal movable head 3 with the corner fitting hole on the container and insert it. Next, drive the L-shaped limit block 301 to lock it against the side of the safety railing 1, allowing the movable head 3 to rotate 90 degrees. At this 90-degree angle, the movable head 3 and the corner fitting hole are perpendicular, and the protrusions on both sides of the movable head 3 will lock against the side walls of the corner fitting hole, achieving a locking effect. During this process, the first limit block 5 and the second limit block 6 will lock against the edge of the container for stability. Repeat the above operation to install another set of safety railings 1, and place the platform frame 2 between the two sets of safety railings 1, so that... The slot 202 at the bottom of the connecting block 201 is engaged with the sleeve 104. By adjusting the L-shaped connecting guide block 203 to position it at the bottom of the sleeve 104, and then rotating the connecting nut 205 to lock the L-shaped connecting guide block 203, the installation of the operating platform is completed. This method can effectively utilize the corner fitting holes of the container without drilling holes in the container, thus avoiding damage to the container. Through the locking of the movable head 3 with the corner fitting holes and the setting of the safety guardrail 1, the operating platform can be stably installed on the refrigerated container. The first limit block 5 and the second limit block 6 are engaged with the edge of the container to prevent the platform from shaking or shifting, ensuring the personal safety of the staff during maintenance operations.
[0051] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.
Claims
1. A marine refrigerated container maintenance and operation platform, characterized in that: It includes a safety railing (1), which has two sets and corresponds to each other. A platform frame (2) is installed between the two sets of safety railings (1). Each set of safety railings (1) has a movable head (3) on one side, and the two sets of movable heads (3) are located on both sides of the platform frame (2). The safety railing (1) has a first connecting groove (102) and a second connecting groove (103) inside. The first connecting groove (102) is located on top of the second connecting groove (103). The first connecting groove (102) and the second connecting groove (103) are arranged in pairs.
2. The marine refrigerated container maintenance and operation platform according to claim 1, characterized in that: A first limiting block (5) and a second limiting block (6) are installed on one side of the safety railing (1). The first limiting block (5) is located on top of the second limiting block (6). The first limiting block (5) and the second limiting block (6) are both double-layered on the side of the safety railing (1) and are located on both sides of the safety railing (1), corresponding to the first connecting groove (102) and the second connecting groove (103).
3. The marine refrigerated container maintenance and operation platform according to claim 2, characterized in that: The first limiting block (5) is connected to the second limiting block (6) and the safety guardrail (1) by fastening bolts (501). One end of the fastening bolts (501) extends to the inner side of the first limiting block (5) and the second limiting block (6), and passes through the safety guardrail (1) through the first connecting groove (102) and the second connecting groove (103), and extends to the outside of the first limiting block (5) and the second limiting block (6).
4. The marine refrigerated container maintenance and operation platform according to claim 3, characterized in that: The safety guardrail (1) has a sleeve (104) on its inner side. The sleeve (104) is located between the first connecting groove (102) and the second connecting groove (103). The sleeve (104) is in the shape of a rounded rectangle. The sleeve (104) is movably connected to a connecting rod (302). One end of the connecting rod (302) has a retaining ring (303). A gasket (304) is provided on one side of the safety railing (1). One end of the connecting rod (302) passes through the sleeve (104) and extends to the outside of the safety railing (1) to connect with the gasket (304).
5. The marine refrigerated container maintenance and operation platform according to claim 4, characterized in that: The movable head (3) is located on the outer surface of the connecting rod (302) and is movably connected to it. The movable head (3) is also located between the retaining ring (303) and the safety railing (1). The movable head (3) has an L-shaped limiting block (301) on the side near the retaining ring (303), and the L-shaped limiting block (301) is located on one side of the safety railing (1).
6. The marine refrigerated container maintenance and operation platform according to claim 5, characterized in that: The connecting rod (302) has an assembly bolt (305) at the end away from the movable head (3). The assembly bolt (305) is located on one side of the washer (304). The outer surface of the assembly bolt (305) is threaded with an assembly nut (306). The washer (304) is located between the safety guardrail (1) and the assembly nut (306).
7. The marine refrigerated container maintenance and operation platform according to claim 4, characterized in that: The platform frame (2) is fixedly connected to both sides with connecting blocks (201). The connecting blocks (201) are in pairs and correspond to each other. The inner side of each pair of connecting blocks (201) is provided with a slot (202). The inner side of the slot (202) is arc-shaped. The slot (202) is located on the outer surface of the sleeve (104) and is movably connected to it.
8. The marine refrigerated container maintenance and operation platform according to claim 7, characterized in that: The inner side of the connecting block (201) is provided with an L-shaped connecting guide block (203). The L-shaped connecting guide block (203) is located at the bottom of the sleeve (104). The L-shaped connecting guide block (203) is connected to the connecting block (201) by a connecting bolt (204). The inner side of the L-shaped connecting guide block (203) is provided with a connecting nut (205). The connecting nut (205) is located on the outer surface of the connecting bolt (204) and is threadedly connected to it. The L-shaped connecting guide block (203) is located between the connecting block (201) and the connecting nut (205).
9. The marine refrigerated container maintenance and operation platform according to claim 8, characterized in that: The safety railing (1) is made of aluminum alloy hollow tube, and the outer surface of the safety railing (1) is provided with anti-slip pattern (101). The platform frame (2) is equipped with an anti-slip plate (206). The platform frame (2) and the anti-slip plate (206) are made of aluminum alloy hollow tube and aluminum alloy patterned plate, respectively. The surface of the anti-slip plate (206) is provided with a magnetic coating.