A device for preventing cargo from falling into the water during loading and unloading at a dock
By installing adjustable protective components and an airbag system on the conveyor belt, the problem of limited protection range of existing devices has been solved, enabling stable transport of different goods, reducing cargo falling and wear, and improving the safety and practicality of cargo loading and unloading at the dock.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-22
- Publication Date
- 2026-03-13
AI Technical Summary
Existing cargo handling equipment at docks has limited protection against cargo falling into the water and cannot effectively cope with complex and ever-changing handling environments, posing safety hazards.
A device comprising a conveyor belt and a protective assembly is designed. The protective assembly consists of a base plate, an interceptor plate, and a top plate. The adjustability and stability of the protective assembly are achieved through an adjustment mechanism and an airbag system. The device is combined with a rotating plate and a contact ball to adapt to different cargo sizes and positions, thereby reducing friction and deviation.
The improved applicability and stability of the protective components ensure the normal transport of goods on the conveyor belt, reduce cargo falling and wear, and enhance safety and practicality.
Smart Images

Figure CN121020107B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of transfer equipment technology, specifically to a device for preventing cargo from falling into the water during loading and unloading at a dock. Background Technology
[0002] Docks, as structures built along the coast or rivers for ships or ferries to dock and for passengers to embark and disembark, and for cargo to be loaded and unloaded, are typically found in commercial cities with well-developed water and land transportation. During the loading and unloading of cargo at docks, there are frequent incidents of cargo falling or workers falling into the water. Cargo falling directly into the water can cause economic losses and environmental pollution; at the same time, when workers are carrying cargo, especially when they are fatigued, there is also a risk of falling, which threatens the personal safety of the workers.
[0003] Currently, although there are some anti-water devices for cargo loading and unloading at docks on the market, these devices generally have some defects. For example, some devices only use simple guardrail structures to prevent cargo from falling into the water, with limited protection range, and cannot effectively cope with complex and ever-changing loading and unloading environments. Summary of the Invention
[0004] The purpose of this invention is to provide a water-prevention device for cargo loading and unloading at docks, so as to solve the problems mentioned in the background art.
[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:
[0006] This invention relates to a water-prevention device for loading and unloading cargo at a dock, comprising a conveyor belt for loading and unloading cargo at the dock. Protective components are provided on both sides of the conveyor belt. Each protective component consists of a base plate, an interceptor plate, a connecting strip, and a top plate. The base plate is mounted on the conveyor belt and is used for the connection between the entire protective component and the conveyor belt. The interceptor plate is hinged to the base plate via the connecting strip, and the top plate is hinged to the interceptor plate via the connecting strip. By adjusting the positions of the interceptor plate and the top plate, the range of protection for both sides of the conveyor belt can be expanded.
[0007] Furthermore, an adjustment mechanism is provided on the conveyor belt to reinforce the protective components. The adjustment mechanism consists of a fixed plate, an adjustment base frame, an extension plate, a connecting rod, a hinge frame, and a plug-in adjustment assembly. The fixed plate is installed on the conveyor belt, the adjustment base frame is rotatably installed on the fixed plate, the extension plate is slidably installed on the adjustment base frame, and the connecting rod is slidably installed on the extension plate. A connecting groove is provided on the top plate, and one end of the connecting rod extends into the connecting groove and is adapted to the connecting groove. The hinge frame is slidably installed on the fixed plate, and part of the hinge frame is connected to the adjustment base frame. The plug-in adjustment assembly is set on the fixed plate and is used to limit the connection between the hinge frame and the fixed plate, as well as to limit the extension distance of the extension plate.
[0008] Furthermore, the extension plate has a slot one, and the fixed plate has a slot two. The plug-in adjustment assembly consists of an air cylinder, a push rod, a piston, an air bag one, an insert rod one, an installation cylinder, an air bag two, an insert rod two, and an air guide tube. The air cylinder is mounted on the fixed plate, the push rod is slidably mounted on the air cylinder, the piston is slidably mounted on the air cylinder, and the piston is connected to the push rod. The air bag one is set on the hinge frame, the insert rod one is slidably mounted on the hinge frame, the insert rod one is adapted to the slot one, and the insert rod one is connected to the air bag one. The insertion rod one moves by the contraction of the air bag one. The installation cylinder is mounted on the adjustment base frame, the air bag two is set on the installation cylinder, the insert rod two is slidably mounted on the installation cylinder, the insert rod two is adapted to the slot two, and the insert rod two is connected to the air bag two. The insertion rod two moves by the contraction of the air bag two. The air guide tube is mounted on the air cylinder and communicates with the air bag one and the air bag two for airflow between the air cylinder, the air bag one, and the air bag two.
[0009] Furthermore, a support plate is installed on one side of the fixed plate. The support plate is used to provide support for the bottom of the interceptor plate when the position of the interceptor plate is adjusted, and also to limit the horizontal position of the interceptor plate.
[0010] Furthermore, a hook bar is installed on one side of the air cylinder, and a knob is installed at the end of the push rod outside the air cylinder. The knob is rotatably connected to the push rod, and a limit block is installed on the knob. The limit block is adapted to the hook block. After the piston is pushed to the appropriate position by the push rod, the knob is rotated to make the hook block enter the limiting part of the hook bar, thereby limiting the movement of the push rod.
[0011] Furthermore, an adjustment slot is provided on the top plate, a rotating plate is rotatably installed in the adjustment slot, a contact ball is rotatably installed at the bottom of the rotating plate, a thumb telescopic rod is rotatably installed on the top plate, a connecting plate is provided on one side of the top plate, the connecting plate is connected to the rotating plate, and the connecting plate is rotatably connected to the telescopic shaft of the thumb telescopic rod.
[0012] Furthermore, the connecting plate is moved by the thumb telescopic rod, and under the rotation limit action of the rotating plate, the connecting plate rotates, thereby causing the contact ball to extend out of the adjustment groove, which facilitates the adjustment of the position of the goods.
[0013] Furthermore, the interceptor plate has an adjustment slot two, in which a rotating rod is rotatably installed. The rotating rod has an installation groove, in which a rubber strip is installed. One side of the rubber strip extends out of the installation groove.
[0014] Furthermore, during the movement of goods on the conveyor belt, the interceptor plate blocks the goods. When the goods come into contact with the interceptor plate, they first rotate with the rotating roller. The rotation of the roller reduces the obstruction to the movement of the goods. At the same time, the rubber strip increases the friction between the goods and the roller, reducing the probability of the goods moving backward on the conveyor belt.
[0015] The present invention has the following beneficial effects:
[0016] (1) By setting protective components on both sides of the conveyor belt, the present invention can prevent goods from falling off the conveyor belt during loading and unloading, thus ensuring the normal transport of goods. At the same time, the hinged arrangement between the base plate, the interceptor plate and the top plate can adjust the position of the interceptor plate and the top plate, making the distance between the protective components on both sides of the conveyor belt adjustable, better adapting to goods of different sizes, expanding the applicability of the protective components and improving the practicality of the device of the present invention.
[0017] (2) By adjusting the angle and length of the base frame and the extension plate, the top plate is limited with the cooperation of the connecting rod, thereby limiting the protective component and improving the stability of the protective component, providing protection for the goods on both sides of the conveyor belt. At the same time, by using the airflow between the air cylinder, air bag one and air bag two to control the position of the insertion rod one and the insertion rod two, it provides convenience for adjusting the angle and extension distance of the base frame and the extension plate, making the invention more convenient to use.
[0018] (3) The present invention rotates and installs a rotating plate on the top plate and sets a contact ball on one side of the rotating plate. The connecting plate is rotated by the thumb telescopic rod, thereby adjusting the position of the contact ball to one side of the top plate. By adjusting the position of the contact ball, it can better meet the transportation requirements of goods of different widths. At the same time, when the goods are on the conveyor belt, the extension of the contact ball can cause the goods to be moved, ensuring the normal transportation of the goods and reducing the deviation of the goods during transportation. The setting of the rotating ball can also reduce the direct contact between the goods and the intercepting plate or the top plate surface, reduce the friction of the goods, and ensure the normal transportation of the goods.
[0019] (4) By setting a rotating roller on the interceptor plate, the present invention can reduce the friction between the goods and the surface of the interceptor plate during transportation, ensure the normal transportation of the goods, and also reduce the wear of the interceptor plate. By setting a rubber strip on the rotating roller, the hard collision between the goods and the interceptor plate can be reduced, improving the protection effect of the interceptor plate. At the same time, the setting of the rubber strip can form a small squeezing friction on the goods, reducing the probability of the goods moving backward during the inclined transportation process, and ensuring the normal transportation of the goods.
[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0023] Figure 2 This is a top view of the structure of the present invention;
[0024] Figure 3 This is a partial structural schematic diagram of the present invention;
[0025] Figure 4 This is a schematic diagram of the protective component in this invention;
[0026] Figure 5 This is a schematic diagram of the adjustment mechanism in this invention;
[0027] Figure 6 This is a cross-sectional view of the adjustment mechanism in this invention;
[0028] Figure 7 This is a schematic diagram of the top plate structure in this invention;
[0029] Figure 8 This is a schematic diagram of the rotating roller and rubber strip in this invention.
[0030] The attached diagram lists the components represented by each number as follows:
[0031] In the diagram: 1. Conveyor belt; 2. Protective components; 201. Base plate; 202. Connecting strip; 203. Interception plate; 204. Top plate; 3. Adjustment mechanism; 4. Fixing plate; 5. Adjustment base frame; 6. Extension plate; 7. Connecting rod; 8. Hinge frame; 9. Air cylinder; 10. Push rod; 11. Piston; 12. Airbag one; 13. Insert rod one; 14. Mounting cylinder; 15. Airbag two; 16. Insert rod two; 17. Air guide tube; 18. Rotating plate; 19. Contact ball; 20. Connecting plate; 21. Thumb telescopic rod; 22. Rotating roller; 23. Rubber strip. Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0033] Please see Figures 1-8 As shown, the present invention is a water-prevention device for loading and unloading cargo at a dock, including a conveyor belt 1. The conveyor belt 1 is used for loading and unloading cargo at the dock. The conveyor belt 1 is constructed using existing technology. Support rods are installed on the surface of the conveyor belt 1 for conveying cargo. The height of the support rods is horizontal with the base plate 201 on the protective component 2 to ensure normal transport of cargo. Protective components 2 are provided on both sides of the conveyor belt 1. The protective component 2 is composed of a base plate 201, an interceptor plate 203, a connecting strip 202, and a top plate 204. The base plate 201 is installed on the conveyor belt 1 for connecting the entire protective component 2 to the conveyor belt 1. The interceptor plate 203 is hinged to the base plate 201 through the connecting strip 202. The top plate 204 is hinged to the interceptor plate 203 through the connecting strip 202. By adjusting the position of the interceptor plate 203 and the top plate 204, the range of protection for both sides of the conveyor belt 1 can be expanded.
[0034] An adjustment mechanism 3 is provided on the conveyor belt 1. The adjustment mechanism 3 is used to reinforce the protective component 2. The adjustment mechanism 3 consists of a fixed plate 4, an adjustment base frame 5, an extension plate 6, a connecting rod 7, a hinge frame 8, and a plug-in adjustment assembly. The fixed plate 4 is installed on the conveyor belt 1. A support plate is installed on one side of the fixed plate 4. The support plate is used to provide support for the bottom of the interceptor plate 203 when the position of the interceptor plate 203 is adjusted, and also to limit the horizontal movement of the interceptor plate 203. The adjustment base frame 5 is rotatably installed on the fixed plate 4. The extension plate 6 is slidably installed on the adjustment base frame 5. The connecting rod 7 is slidably installed on the extension plate 6. A connecting groove is opened on the top plate 204. One end of the connecting rod 7 extends into the connecting groove and is adapted to the connecting groove. The hinge frame 8 is slidably installed on the fixed plate 4. Part of the hinge frame 8 is connected to the adjustment base frame 5. The plug-in adjustment assembly is set on the fixed plate 4. The plug-in adjustment assembly is used to limit the connection between the hinge frame 8 and the fixed plate 4, and to limit the extension distance of the extension plate 6.
[0035] The extension plate 6 has a slot 1, and the fixed plate 4 has a slot 2. The plug-in adjustment assembly consists of an air cylinder 9, a push rod 10, a piston 11, an air bag 12, a plug rod 13, a mounting cylinder 14, an air bag 2 15, a plug rod 2 16, and an air guide tube 17. The air cylinder 9 is mounted on the fixed plate 4, the push rod 10 is slidably mounted on the air cylinder 9, the piston 11 is slidably mounted on the air cylinder 9, and the piston 11 is connected to the push rod 10. The air bag 12 is mounted on the hinge frame 8, the plug rod 13 is slidably mounted on the hinge frame 8, the plug rod 13 is adapted to the slot 1, and the plug rod 13 is connected to the air bag 12. The expansion of the air bag 12 drives the plug rod 13 to move. The mounting cylinder 14 is mounted on the adjustment base frame 5, the air bag 2 15 is mounted on the mounting cylinder 14, and the plug rod 2 16... The second insertion rod 16 is slidably installed on the mounting cylinder 14 and is adapted to the second slot. The second insertion rod 16 is connected to the second airbag 15. The second insertion rod 16 is moved by the contraction of the second airbag 15. The air guide tube 17 is installed on the air cylinder 9 and is connected to the first airbag 12 and the second airbag 15. It is used for airflow between the air cylinder 9, the first airbag 12 and the second airbag 15. The air guide tube 17 is made of flexible hose. A hook bar is installed on one side of the air cylinder 9. A knob is installed on the end of the push rod 10 outside the air cylinder 9. The knob is rotatably connected to the push rod 10. A limit block is installed on the knob. The limit block is adapted to the hook block. After the piston 11 is pushed to the appropriate position by the push rod 10, the knob is rotated to make the hook block enter the limit part of the hook bar and limit the movement of the push rod 10.
[0036] An adjustment slot is provided on the top plate 204, and a rotating plate 18 is rotatably installed in the adjustment slot. A contact ball 19 is rotatably installed at the bottom of the rotating plate 18. A T-shaped rotating groove is provided on one side of the rotating plate 18, and a T-shaped rotating protrusion is installed on the contact ball 19. The T-shaped rotating protrusion extends into the T-shaped rotating groove and is rotatably connected thereto. A thumb telescopic rod 21 is rotatably installed on the top plate 204. A connecting plate 20 is provided on one side of the top plate 204, and the connecting plate 20 is connected to the rotating plate 18. The telescopic shaft of the thumb telescopic rod 21 is rotatably connected, and the connecting plate 20 is moved by the thumb telescopic rod 21. Under the rotation limit action of the rotating plate 18, the connecting plate 20 rotates, so that the contact ball 19 extends out of the adjustment groove one, which facilitates the adjustment of the position of the goods. The intercepting plate 203 is provided with an adjustment groove two, and a rotating rod 22 is rotatably installed in the adjustment groove two. The rotating rod 22 is provided with an installation groove, and a rubber strip 23 is provided in the installation groove. One side of the rubber strip 23 extends out of the installation groove.
[0037] During the movement of goods on conveyor belt 1, the interceptor plate 203 blocks the goods. When the goods come into contact with the interceptor plate 203, they first rotate with the rotating roller 22. The rotation of the rotating roller 22 reduces the obstruction to the movement of the goods. At the same time, the rubber strip 23 increases the friction between the goods and the rubber strip 23, reducing the probability of the goods moving backward on the conveyor belt 1.
[0038] In use, the protective component 2 is adjusted according to the size of the transported goods. Specifically, according to the size of the goods, the interceptor plate 203 is rotated so that the distance between the protective plates on both sides of the conveyor belt 1 is adapted to the size of the transported goods. Then, the adjusting base frame 5 is rotated and the extension plate 6 is extended so that one end of the extension plate 6 is in a suitable position. Then, the connecting rod 7 can be inserted so that one end of the connecting rod 7 is inserted into the top plate 204. Then, the push rod 10 is pushed, which drives the piston 11 to move, and the airflow in the air cylinder 9 is delivered to the airbag 12 and the airbag 25 through the air guide pipe 17. Then, the insertion rod 13 and the insertion rod 26 are pushed to move respectively, so that the insertion rod 13... Insert the 3rd and 16th rods into the corresponding slots 1 and 2 respectively, thereby fixing the entire protective assembly 2 and ensuring its stable installation. Then, according to the height of the goods, activate the thumb telescopic rod 21 and move the connecting plate 20, so that the rotating plate 18 and the contact ball 19 extend to one side of the top plate 204, thereby reducing the contact between the goods and the top plate 204. At the same time, the above method can correct any misaligned goods and ensure that the goods move normally on the conveyor belt 1. In this way, the goods will not fall off the conveyor belt 1 during transportation, thus ensuring the safety of the goods during transportation.
[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. A water-prevention device for loading and unloading cargo at a dock, comprising a conveyor belt (1) for loading and unloading cargo at the dock, characterized in that: Protective components (2) are provided on both sides of the conveyor belt (1). The protective components (2) consist of a base plate (201), an interceptor plate (203), a connecting strip (202), and a top plate (204). The base plate (201) is installed on the conveyor belt (1) and is used for the connection between the entire protective component (2) and the conveyor belt (1). The interceptor plate (203) is hinged to the base plate (201) through the connecting strip (202). The top plate (204) is hinged to the interceptor plate (203) through the connecting strip (202). By adjusting the position of the interceptor plate (203) and the top plate (204), the range of protection for both sides of the conveyor belt (1) can be expanded. An adjustment mechanism (3) is provided on the conveyor belt (1). The adjustment mechanism (3) is used to reinforce the protective component (2). The adjustment mechanism (3) consists of a fixed plate (4), an adjustment base frame (5), an extension plate (6), a connecting rod (7), a hinge frame (8), and a plug-in adjustment assembly. The fixed plate (4) is installed on the conveyor belt (1). The adjustment base frame (5) is rotatably installed on the fixed plate (4). The extension plate (6) is slidably installed on the adjustment base frame (5). The connecting rod (7) is slidably installed on the extension plate (6). A connecting groove is provided on the top plate (204). One end of the connecting rod (7) extends into the connecting groove and is adapted to the connecting groove. The hinge frame (8) is slidably installed on the fixed plate (4). Part of the hinge frame (8) is connected to the adjustment base frame (5). The plug-in adjustment assembly is set on the fixed plate (4). The plug-in adjustment assembly is used to limit the connection between the hinge frame (8) and the fixed plate (4) and to limit the extension distance of the extension plate (6). The extension plate (6) has a slot 1, and the fixed plate (4) has a slot 2. The plug-in adjustment assembly consists of an air cylinder (9), a push rod (10), a piston (11), an air bag 1 (12), a plug rod 1 (13), an installation cylinder (14), an air bag 2 (15), a plug rod 2 (16), and an air guide tube (17). The air cylinder (9) is installed on the fixed plate (4), the push rod (10) is slidably installed on the air cylinder (9), the piston (11) is slidably installed on the air cylinder (9), and the piston (11) is connected to the push rod (10). The air bag 1 (12) is set on the hinge frame (8), and the plug rod 1 (13) is slidably installed on the hinge frame (8). The plug rod 1 (13) is adapted to the slot 1. (13) is connected to airbag one (12). The contraction of airbag one (12) drives the insertion rod one (13) to move. The mounting cylinder (14) is installed on the adjusting base frame (5). Airbag two (15) is set on the mounting cylinder (14). Insertion rod two (16) is slidably installed on the mounting cylinder (14). Insertion rod two (16) is adapted to slot two. Insertion rod two (16) is connected to airbag two (15). The contraction of airbag two (15) drives the insertion rod two (16) to move. Air guide tube (17) is installed on air cylinder (9). Air guide tube (17) is connected to airbag one (12) and airbag two (15) for airflow between air cylinder (9), airbag one (12) and airbag two (15).
2. The anti-water-fall device for cargo loading and unloading at a dock according to claim 1, characterized in that: A support plate is installed on one side of the fixed plate (4). The support plate is used to provide support for the bottom of the interceptor plate (203) when the position of the interceptor plate (203) is adjusted, and also to limit the horizontal position of the interceptor plate (203).
3. A water-prevention device for cargo loading and unloading at a dock according to claim 2, characterized in that: A hook bar is installed on one side of the air cylinder (9), and a knob is installed on the end of the push rod (10) outside the air cylinder (9). The knob is rotatably connected to the push rod. A limit block is installed on the knob. The limit block is adapted to the hook block. After the piston (11) is pushed to the appropriate position by the push rod (10), the knob is rotated to make the hook block enter the limit part of the hook bar, thereby limiting the movement of the push rod (10).
4. A water-prevention device for cargo loading and unloading at a dock according to claim 3, characterized in that: An adjustment slot is provided on the top plate (204), a rotating plate (18) is rotatably installed in the adjustment slot, a contact ball (19) is rotatably installed at the bottom of the rotating plate (18), a thumb telescopic rod (21) is rotatably installed on the top plate (204), a connecting plate (20) is provided on one side of the top plate (204), the connecting plate (20) is connected to the rotating plate (18), and the connecting plate (20) is rotatably connected to the telescopic shaft of the thumb telescopic rod (21).
5. A water-prevention device for cargo loading and unloading at a dock according to claim 4, characterized in that: The connecting plate (20) is moved by the thumb telescopic rod (21). Under the rotation limit action of the rotating plate (18), the connecting plate (20) rotates, so that the contact ball (19) extends out of the adjustment channel, which facilitates the adjustment of the position of the goods.
6. A water-prevention device for cargo loading and unloading at a dock according to claim 5, characterized in that: An adjustment slot 2 is provided on the interceptor plate (203), and a rotating rod (22) is rotatably installed in the adjustment slot 2. An installation groove is provided on the rotating rod (22), and a rubber strip (23) is provided in the installation groove. One side of the rubber strip (23) extends out of the installation groove.
7. A water-prevention device for cargo loading and unloading at a dock according to claim 6, characterized in that: During the movement of goods on the conveyor belt (1), the goods are blocked by the interceptor plate (203). When the goods come into contact with the interceptor plate (203), they first rotate with the rotating roller (22). The rotation of the rotating roller (22) reduces the obstruction to the movement of the goods. At the same time, the rubber strip (23) increases the friction between the goods and the rubber strip (23), reducing the probability of the goods moving backward on the conveyor belt (1).
Citation Information
Patent Citations
Steel billet conveying mechanism with protective structure
CN221564510U
Anti-falling device for water transportation loading and unloading
CN221586820U