A protective cover for a rotary barge chute

Abstract

This utility model discloses a rotary barge chute protective cover, which is installed over the chute opening of a barge chute located on a chute platform. The chute platform is provided with an arc-shaped sliding track for the rotation of the protective cover. The protective cover includes a circular mesh cover body and a rotary reset mechanism. Rolling pulleys that cooperate with the arc-shaped sliding track are provided on the outer edge side frame of the circular mesh cover body. The rotary reset mechanism includes a rotary shaft fixed to the chute platform inside the arc-shaped sliding track, a helical torsion spring fixed to the rotary shaft, and a spring arm extending from the lower end of the helical torsion spring and connected to the circular mesh cover body. By employing the rotary reset mechanism and the torsion spring, the cover can be automatically pushed open by the thrust of the head chute and automatically reset by the action of the torsion spring.

Description

Technical Field

[0001] This utility model relates to protective equipment for barge chutes, and more particularly to a rotary barge chute protective cover. Background Technology

[0002] Large port unloading terminals typically employ multiple barge systems to enhance the unloading capacity and operational time of ship unloading machinery, thereby ensuring and improving unloading efficiency. Each barge system has a downstream conveyor belt with a corresponding chute. Multiple chutes are spaced apart on a chute platform. A rotating conveyor belt aligns its head chute with the chute to be unloaded, allowing the material to fall from the head chute onto the downstream conveyor belt for output. However, current barge chutes have open chute openings without safety precautions, posing significant safety hazards, especially at night or in inclement weather, where maintenance personnel may fall.

[0003] Even with protective netting installed, since the diameter of the chute opening is usually 1.6 meters, opening or closing protective netting larger than this size by manual handling is time-consuming, labor-intensive, unsafe, and cannot meet the switching frequency between multiple transport systems. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides a rotary barge chute protective cover, which employs a rotary reset mechanism and a torsion spring. It can automatically push the cover open using the thrust of the head chute and automatically reset itself under the action of the torsion spring.

[0005] A rotary barge chute protective cover is installed over the chute opening of a barge chute located on a chute platform. The chute platform is provided with an arc-shaped sliding track for the rotation of the protective cover. The protective cover includes a circular mesh cover body and a rotary reset mechanism. The outer edge of the circular mesh cover body is provided with rolling pulleys that cooperate with the arc-shaped sliding track. The rotary reset mechanism includes a rotary shaft fixed to the chute platform inside the arc-shaped sliding track, a helical torsion spring fixed to the rotary shaft, and a spring arm extending from the lower end of the helical torsion spring and connected to the circular mesh cover body.

[0006] The rotary reset mechanism also includes a seated bearing, a spring pressure plate, and a rotary shaft protective cover. The seated bearing is sleeved on the lower part of the rotary shaft, and a connecting rod that is horizontally connected to the circular mesh cover is provided on the seated bearing. A first groove is provided on the top end face of the rotary shaft. A helical single torsion spring is sleeved on the rotary shaft. The upper end of the helical single torsion spring has an extended snap-fit ​​section that passes through the first groove. A second groove is provided on the lower surface of the spring pressure plate. The spring pressure plate is connected to the upper end of the rotary shaft by fasteners and merges the second groove with the first groove to press and fix the snap-fit ​​section of the helical single torsion spring inside. The rotary shaft protective cover covers the spring pressure plate, the rotary shaft, and the helical single torsion spring.

[0007] The circular mesh cover has several reinforcing ribs along different diameters. The rotating shaft, spring arm, and rolling pulley are located on the same diameter, and the spring arm is connected and fixed to the reinforcing ribs located on the same diameter through a fixed seat.

[0008] The protective cover also includes an inductive proximity switch for detecting the reset of the circular mesh cover, and the spring arm is also provided with a corresponding sensing block.

[0009] The chute platform is also equipped with a head chute for pushing open the circular mesh cover and an arc-shaped travel track 4 for the head chute to travel on.

[0010] The rotary barge chute protective cover of this utility model has the following advantages:

[0011] 1. The protective cover is equipped with a spiral single torsion spring. When the protective cover is pushed or automatically rotates along the arc-shaped sliding track to expose the chute opening below it, the head chute can be connected with the chute opening to realize the automatic opening of unloading. At the same time, the spiral single torsion spring stores energy. When the unloading is completed and the force on the protective cover disappears, it can automatically rotate back to its original position by the action of the spiral single torsion spring.

[0012] 2. It is designed with an arc-shaped sliding track, which is suitable for multi-barge transport systems. Whether it is applied to the chute openings on both sides or in the middle, it can effectively avoid obstacles when the head chute is switching.

[0013] 3. It can also directly use the head chute to push the protective cover to achieve automatic opening of the protective cover. When the head chute continues to move forward or moves back, the protective cover can be automatically reset by the action of the helical torsion spring.

[0014] 4. The inductive proximity switch design further enhances the monitoring effect of the protective mesh cover closing properly, and can promptly alarm in case of a fault. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the protective cover of this utility model applied to a barge chute;

[0016] Figure 2 This is a schematic diagram of the structure of the protective cover of this utility model;

[0017] Figure 3 This is a schematic diagram showing the head chute of this utility model with the protective cover pushed open.

[0018] Figure 4 This is a three-dimensional schematic diagram of the rotary reset mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure between the spring pressure plate and the rotary shaft of this utility model. Detailed Implementation

[0020] The following is a further description of a rotary barge chute protective cover according to this utility model, such as... Figure 1-5 As shown, the rotary barge chute protective cover 1 of this utility model covers the barge chute located on the chute platform 2.

[0021] On the chute platform 2, an arc-shaped sliding track 31 is provided for the rotation of the protective cover 1. The protective cover 1 includes a circular mesh cover 32 and a rotary reset mechanism. The size of the circular mesh cover 32 should be larger than the size of the chute opening 11 to ensure complete coverage of the chute opening 11. The outer edge of the circular mesh cover 32 is provided with a rolling pulley 33 that cooperates with the arc-shaped sliding track 31. The rotary reset mechanism includes a rotary shaft 34 fixed on the chute platform 2 at the inner center of the arc-shaped sliding track 31, a helical torsion spring fixed on the rotary shaft 34, and a spring arm extending from the lower end of the helical torsion spring and connected to the circular mesh cover 32.

[0022] Preferably, the circular mesh cover 32 rotary reset mechanism further includes a seated bearing 38, a spring pressure plate 39, and a rotary shaft protective cover 37. The seated bearing 38 is sleeved on the lower part of the rotary shaft 34 and can rotate freely. The bearing 38 with a seat is provided with three connecting rods that are horizontally connected to the circular mesh cover 32. The top end face of the rotating shaft 34 is provided with a first groove 47. The helical single torsion spring 35 is sleeved on the rotating shaft 34. The upper end of the helical single torsion spring 35 has an extended snap-fit ​​section 48 that passes through the first groove 47. The lower surface of the spring pressure plate 39 is provided with a second groove 46. The spring pressure plate 39 is connected to the upper end of the rotating shaft 34 by fasteners 40, and the second groove 46 and the first groove 47 are merged to press and fix the snap-fit ​​section 48 of the helical single torsion spring 35 inside, so that the helical single torsion spring 35 is snapped and fixed to the rotating shaft 34. The rotating shaft protective cover 37 covers the spring pressure plate 39, the rotating shaft 34 and the helical single torsion spring 35, covering all these components inside, and playing a protective role.

[0023] The circular mesh cover 32 is provided with several reinforcing ribs 41 of different diameters. The rotating shaft 34, spring arm 36, and rolling pulley 33 are located on the same diameter, and the spring arm 36 is connected and fixed to the reinforcing rib 41a located on the same diameter through a fixed seat 45. Three connecting rods 42 are mounted on the bearing 38. The connecting rods 42 on both sides are tangent to the circular mesh cover 32 and connected by welding, while the middle connecting rod 42a is connected to the side wall of the circular mesh cover 32 by welding and is on the same line as the reinforcing rib 41a.

[0024] The protective cover 1 also includes an inductive proximity switch 43 for detecting the reset of the circular mesh cover 32. The spring arm 36 is also provided with a corresponding sensing block 44. When the circular mesh cover 32 closes its corresponding chute opening 11, the sensing block 44 and the inductive proximity switch 43 are in exactly opposite positions and are sensed. If no sensing signal is received when it is closed, an alarm can be issued in time to check the closing status of the circular mesh cover 32.

[0025] like Figure 3 As shown, the sliding force of the protective cover 1 can preferably be obtained by using the head chute 5 of the barge conveyor belt 3, which is also provided on the chute platform 2. The head chute 5 has an arc-shaped traveling track 4 with its center opposite to the arc-shaped sliding track 31. Furthermore, on both sides of the lower part of the head chute 5, there can be a mesh push plate 51 for pushing open the circular mesh cover 32 so that the bottom slot of the head chute 5 aligns with the corresponding chute slot 11. The height of the mesh push plate 51 should be slightly higher than the upper surface of the chute platform 2.

[0026] This invention can be applied to single or multiple barge transport systems, with a protective cover 1 installed on the chute opening 11 of each barge transport chute. When unloading is required from a certain barge transport chute, the head chute 5 moves to that position, pushing open the circular mesh cover 32 at that position, so that the head chute 5 connects with the exposed chute opening 11 for unloading. As the pushed-open circular mesh cover 32 rotates under force, it drives the seated bearing 38 to rotate, and the spring arm 36 of the helical single torsion spring 35 rotates accordingly to store energy. When unloading is complete and the machine needs to return to standby mode or switch to another barge chute for unloading, if the head chute 5 is moving backward, the circular mesh cover 32 will lose its thrust and be reset by the restoring force of the spiral torsion spring 35. If the head chute 5 is moving forward and needs to pass the position of the barge chute, the circular mesh cover 32 of the barge chute will continue to be pushed forward so that it slides to one side and backward along the arc-shaped sliding track 31 to a certain position. Then, the head chute 5 will disengage from the circular mesh cover 32 and continue to move forward to the next barge chute. The circular mesh cover 32 will also lose its force and automatically reset.

[0027] Of course, the circular mesh cover 32 can also be opened automatically by using a drive motor to control the rolling pulley 33.

[0028] In summary, the rotary barge chute protective cover 1 of this utility model can effectively provide safety protection, automatically and timely open and close without interfering with the walking and switching operations of the head chute 5. In addition, the protective cover can be reset and monitored through an inductive proximity switch.

[0029] However, those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. A protective cover for a rotary barge chute, which is installed over the chute opening of a barge chute located on a chute platform, characterized in that: The chute platform is provided with an arc-shaped sliding track for rotating the protective cover. The protective cover includes a circular mesh cover body and a rotary reset mechanism. The outer edge of the circular mesh cover body is provided with a rolling pulley that cooperates with the arc-shaped sliding track. The rotary reset mechanism includes a rotary shaft fixed to the inner side of the arc-shaped sliding track on the chute platform, a helical torsion spring fixed to the rotary shaft, and a spring arm extending from the lower end of the helical torsion spring and connected to the circular mesh cover body.

2. The rotary barge chute protective cover as described in claim 1, characterized in that: The rotary reset mechanism also includes a seated bearing, a spring pressure plate, and a rotary shaft protective cover. The seated bearing is sleeved on the lower part of the rotary shaft, and a connecting rod that is horizontally connected to the circular mesh cover is provided on the seated bearing. A first groove is provided on the top end face of the rotary shaft. A helical single torsion spring is sleeved on the rotary shaft. The upper end of the helical single torsion spring has an extended snap-fit ​​section that passes through the first groove. A second groove is provided on the lower surface of the spring pressure plate. The spring pressure plate is connected to the upper end of the rotary shaft by fasteners and merges the second groove with the first groove to press and fix the snap-fit ​​section of the helical single torsion spring inside. The rotary shaft protective cover covers the spring pressure plate, the rotary shaft, and the helical single torsion spring.

3. The rotary barge chute protective cover as described in claim 2, characterized in that: The circular mesh cover has several reinforcing ribs along different diameters. The rotating shaft, spring arm, and rolling pulley are located on the same diameter, and the spring arm is connected and fixed to the reinforcing ribs located on the same diameter through a fixed seat.

4. The rotary barge chute protective cover as described in claim 3, characterized in that: The protective cover also includes an inductive proximity switch for detecting the reset of the circular mesh cover, and a corresponding sensing block is provided on the spring arm.

5. A protective cover for a rotary barge chute as described in claim 1, characterized in that: The chute platform is also equipped with a head chute for pushing open the circular mesh cover and an arc-shaped travel track for the head chute to travel on.

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