Warehouse entering platform anti-falling device

Abstract

The utility model relates to the technical field of cigarette material transportation, in particular to an anti-falling device for a warehousing platform. The protective device is arranged at an inlet, where materials enter, of a warehousing platform and comprises two supports arranged on the warehousing platform, a protective net arranged between the two supports and a driving structure used for driving the protective net to move so as to expose or cover the inlet. The two supports are provided with guide parts in the moving direction of the protective net. The two ends of the protective net are provided with guide blocks in sliding connection with the guide parts. The connecting direction of the guide part and the guide block is perpendicular to the in-out direction of the inlet. The installation direction of the anti-falling device is adjusted to be inconsistent with the in-out direction of the entrance, and meanwhile, the flexible protective net replaces a hard handrail to provide a force buffering effect, so that the possibility that the anti-falling device is loosened due to the external force of workers can be reduced, and the safe anti-falling effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of cigarette material transportation technology, and in particular to a fall prevention device for a warehouse platform. Background Technology

[0002] A material receiving platform is a type of logistics equipment primarily used to automate the entry of goods into a warehouse. Compared to manual operation, the receiving platform can unload goods from trucks and other transport vehicles faster and more accurately, and store them in designated locations within the warehouse. Material receiving platforms can be applied in various logistics scenarios, such as industrial and commercial operations. Utilizing automation technology, these platforms reduce the time and costs of manual operations and improve work efficiency. However, workers frequently need to operate on the receiving platform, which is at a certain height from the ground, posing a higher risk of falls and safety concerns.

[0003] Patent document CN218508865U discloses a multi-segment electric telescopic guardrail safety device for platforms, comprising a first telescopic rod bracket, a first multi-segment telescopic rod, a second telescopic rod bracket, and a second multi-segment telescopic rod. The first telescopic rod bracket and the second multi-segment telescopic rod are spaced a certain distance apart and are fixedly installed side-by-side on the side of the platform. One end of the first multi-segment telescopic rod is fixedly installed on the first telescopic rod bracket, and the other end is a telescopic end capable of multi-stage extension and retraction. One end of the second multi-segment telescopic rod is fixedly installed on the second telescopic rod bracket, and the other end is a telescopic end capable of multi-stage extension and retraction. The telescopic ends of the first and second multi-segment telescopic rods reliably engage when extended. During operation, the multi-segment electric telescopic guardrail is retracted; when not in operation, it is raised to ensure the safety of personnel moving on the platform.

[0004] In this prior art, the telescopic pole bracket is fixed to the side of the platform. When a worker accidentally leans against the railing formed by the telescopic pole connection, the direction of the force applied to the telescopic pole is the same as the direction of the connection between the telescopic pole and the side of the platform. Moreover, the telescopic pole is a rigid structure and has no force buffering effect, so it is easy for the connection between the telescopic pole and the side of the platform to loosen, which poses a safety hazard. Utility Model Content

[0005] This invention aims to solve the above problems by providing a highly safe anti-fall device for warehouse entry platforms.

[0006] The technical solution of this utility model is to provide a fall prevention device for an inbound platform, which is installed at the entrance of the inbound platform for material entry. It includes two supports installed on the inbound platform, a protective net between the two supports, and a drive structure for moving the protective net to expose or cover the entrance. Each of the two supports has a guide portion along the direction of movement of the protective net, and each end of the protective net has a guide block slidably connected to the guide portion. The connection direction between the guide portion and the guide block is perpendicular to the inbound / outbound direction of the entrance.

[0007] As a preferred embodiment of the present invention, the guide portion includes a guide hole, and the guide block is inserted into the guide hole.

[0008] As a preferred embodiment of the present invention, the guide portion includes a guide rod, and the guide block is sleeved on the guide rod.

[0009] As a preferred embodiment of this utility model, the drive structure includes a first gear shaft and a second gear shaft rotatably connected to the bracket, a gear chain meshing with both the first gear shaft and the second gear shaft, and a motor driving the first gear shaft to rotate; the first gear shaft and the second gear shaft are respectively disposed at both ends of the bracket along the moving direction of the protective net; the gear chain includes a connecting part located between the first gear shaft and the second gear shaft, and the guide block is connected to the side of the connecting part near the inside of the storage station.

[0010] As a preferred embodiment of this invention, the first gear shafts of the two brackets are connected by a connecting shaft.

[0011] As a preferred embodiment of this invention, a touch sensor is provided at the end of the bracket along the moving direction of the protective net, and the touch sensor is connected to the motor signal.

[0012] As a preferred embodiment of this invention, both of the brackets are provided with safety light curtains on the sides near the protective net.

[0013] As a preferred embodiment of this utility model, the portion of the warehouse platform located between the two supports is provided with a buffer airbag.

[0014] As a preferred embodiment of this invention, a stabilizing crossbar is provided between the two supports.

[0015] As a preferred embodiment of the present invention, the guide block and the protective net are connected by a connecting piece, the connecting piece including a clamping cavity for clamping and fixing the side edge of the protective net, and a fixing post disposed in the clamping cavity, the side edge of the protective net being wrapped around the fixing post.

[0016] The beneficial effects of this utility model are:

[0017] 1. In this application, by adjusting the installation direction of the fall arrest device to be inconsistent with the entrance and exit direction, and by replacing the rigid railing with a flexible protective net to provide a force buffering effect, the possibility of the fall arrest device being loosened by external force from workers can be reduced, thereby improving the safety fall arrest effect.

[0018] 2. In some embodiments, the protective net is driven to move by a gear chain structure, and the protective net is connected to the side of the gear chain connection near the entrance platform. When a worker accidentally leans against the protective net, the protective net can be pressed against the gear chain to prevent the protective net from falling off, thereby further improving the safety protection effect.

[0019] 3. In some implementations, touch sensors, safety light curtains, and airbags are added to further improve the safety and protection of the device. Attached Figure Description

[0020] Figure 1 This is a top view of the entry platform in an entry platform fall protection device;

[0021] Figure 2 This is a schematic diagram of the internal structure of a fall protection device for a warehouse platform.

[0022] Figure 3 This is a schematic diagram of the external structure of a fall protection device for a warehouse platform.

[0023] Figure 4 This is a partial schematic diagram of the protective netting in a fall arrest device for a warehouse platform.

[0024] In the diagram: 1. Inbound platform, 11. 21. 21. 21. 21. 21. 21. 21. 21. 22. 22. 22. 3. 3. 3. 4. 5. 6. 7. 8. 9. 10. 11. 11. 12. 13. 14. 15. 16. 17. 18. 19. 10 ...9. 10. 19. 10. 19. 10. 19. 19. 10. 19. 19. 10. 19. 19. 10. 19. 19. 10. 19. 19. Detailed Implementation

[0025] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] Automatic material receiving station, such as Figure 1 As shown, a staircase is provided on the lower side of the storage platform 1, and an entrance 11 for materials to enter is provided on the left side. In order to prevent workers from falling on the storage platform 1, a storage platform fall protection device is provided at the entrance 11.

[0027] A type of fall protection device for warehouse entry platforms, such as Figure 2 and Figure 3As shown, it first includes two brackets 21 set on the entry platform 1, with the bottom of the brackets 21 fixed to the entry platform 1. According to... Figure 1 In the direction of the entrance 11, two supports 21 are respectively set above and below the entrance 11. There are no gaps or very small gaps between the upper support 21 and the solid structure above the entrance 11, and between the lower support 21 and the stairs, making it impossible for people to pass through. The space between the two supports 21 forms a new entrance 11, through which materials enter. The support 21 is the foundation of the fall arrestor, and its bottom is preferably provided with a large base. The base can be welded to the storage platform 1 or connected by several bolts. In some embodiments, a stabilizing crossbar 22 is provided between the tops of the two supports 21. The stabilizing crossbar 22 makes the two supports 21 form a whole, with better stability; at the same time, the stabilizing crossbar 22 can ensure the parallelism of the two supports 21 to ensure the smooth movement of the subsequent protective net 3.

[0028] Secondly, a protective net 3 is installed between the two supports 21, which covers the new entrance 11 to prevent falls. Simultaneously, to ensure the entry of materials during storage is not affected, a drive structure is included to move the protective net 3 to expose or cover the entrance 11. According to... Figure 2 In the direction of material entry, when material is being stored, the drive structure moves the protective net 3 upwards, clearing the area below the entrance 11 for material to enter; when material entry is not required, the drive structure moves the protective net 3 downwards, covering the area below the entrance 11 to prevent it from falling. When the protective net 3 moves downwards, its height should be at least above the operator's waist.

[0029] Since the protective net 3 is movable, the bracket 21 needs to be slidably connected to the protective net 3. Therefore, the two brackets 21 are respectively aligned with the direction of movement of the protective net 3 and according to... Figure 2 The guide section is located in the vertical direction, and guide blocks 31 are slidably connected to the guide section at both ends of the protective net 3. In this application, it is emphasized that the connection direction between the guide section and the guide block 31 is perpendicular to the inlet / outlet direction of the entrance 11. Specifically: according to... Figure 2 In the case of inlet 11, the direction of entry and exit is forward and backward, so the connection direction between the guide section and the guide block 31 can be left and right or up and down. For example... Figure 3 As shown, the guide part includes a guide hole 211, and a guide block 31 is inserted into the guide hole 211. The guiding direction of the guide hole 211 is up and down, and the direction in which the guide block 31 is inserted into the guide hole 211 is left and right. For example... Figure 2As shown, the guide part includes a guide rod 212, and a guide block 31 is sleeved on the guide rod 212. The guide rod 212 guides in a vertical direction. The guide block 31 has a sleeve hole to be sleeved on the guide rod 212 from top to bottom or from bottom to top. After sleeved, the upper and lower ends of the guide rod 212 are connected to the bracket 21 via connecting rods. In some embodiments, a guide hole 211 and a guide rod 212 can be provided simultaneously, such as... Figure 2 As shown, the bracket 21 is hollow inside. The bracket 21 has a guide hole 211 on the side wall near the entrance 11 and a guide rod 212 on the side wall away from the entrance 11. The guide block 31 is inserted into the guide hole 211 and then sleeved on the guide rod 212.

[0030] Based on this, in this application, according to Figure 2 As shown in the diagram, the connection direction between support 21 and the entry platform 1 is vertical, the connection direction between protective netting 3 and support 21 is horizontal or vertical, and the entry and exit direction of entrance 11 is front-back. When a worker accidentally leans against protective netting 3, the force applied to the entire fall protection device is in the front-back direction, which is not consistent with the installation direction of the fall protection device. Therefore, the fall protection device is not easily loosened by force, and the fall protection effect is better.

[0031] The aforementioned drive structure for moving the protective net 3 is not limited; in some embodiments, such as... Figure 2 As shown, the drive structure includes a first gear shaft 41 and a second gear shaft 42 rotatably connected to the bracket 21, a gear chain 43 meshing with both the first gear shaft 41 and the second gear shaft 42, and a motor 44 driving the first gear shaft 41 to rotate. The first gear shaft 41, the second gear shaft 42, and the gear chain 43 are disposed in the hollow inner cavity of the bracket 21, with the first gear shaft 41 and the second gear shaft 42 respectively disposed at the upper and lower ends of the bracket 21, and the motor 44 disposed outside the bracket 21. The gear chain 43 includes a connecting part located between the first gear shaft 41 and the second gear shaft 42, and a guide block 31 is connected to the connecting part. In use, the motor 44 drives the first gear shaft 41 to rotate, driving the gear chain 43 to move, thereby driving the protective net 3 to move. In some embodiments, the first gear shafts 41 of the two brackets 21 are connected by a connecting shaft 45 to improve the synchronicity of the movement of the two ends of the protective net 3. The connecting shaft 45 can be disposed in the hollow inner cavity of the stabilizing crossbar 22.

[0032] In some implementations, the guide block 31 can be controlled to connect with the side of the connecting part closest to the entrance platform 1, according to... Figure 2 The direction shown is the rear connection, so that when a worker accidentally leans against the protective net 3, the guide block 31 is pressed against the toothed chain 43, which can prevent the guide block 31 from falling off, and thus prevent the protective net 3 from falling off, thereby improving the safety protection effect.

[0033] Since the guide block 31 is made of rigid material and the protective net 3 is made of soft material, in order to improve the connection strength between the guide block 31 and the protective net 3, and to prevent the protective net 3 from falling off the guide block 31 and ensure the fall protection effect, in some embodiments, such as Figure 4 As shown, the guide block 31 and the protective net 3 are connected by a connecting piece 32. The connecting piece 32 includes a clamping cavity 321 for clamping and fixing the side edge of the protective net 3, and a fixing post 322 disposed in the clamping cavity 321. The side edge of the protective net 3 is wrapped around the fixing post 322. In specific installation, firstly, take the fixing post 322. The top and bottom of the fixing post 322 are welded or integrally formed with connecting seats. Wrap the side edge of the protective net 3 around the fixing post 322 to form an integral structure. Then, take a sheet metal and wrap it around this integral structure. The top and bottom of the sheet metal are welded to the connecting seats, and the two ends of the sheet metal abut against the two sides of the protective net 3 and press and weld them. Finally, weld the guide block 31 to the sheet metal. In some embodiments, the end of the sheet metal used to press against the protective net 3 can be provided with barbs to insert and hook the protective net 3, thereby improving the connection strength between the two.

[0034] In the drive structure, the start and stop of the motor 44 can be controlled manually or automatically through various sensors. In some embodiments, a touch sensor 5 is provided at the end of the bracket 21 along the moving direction of the protective net 3, and the touch sensor 5 is signal-connected to the motor 44. When the protective net 3 moves to contact the touch sensor 5, the touch sensor 5 senses the contact and sends a signal to the controller, which can then shut down the motor 44 and limit the movement of the protective net 3.

[0035] In some embodiments, the portion of the storage platform 1 located between the two supports 21 is equipped with a buffer airbag 7. Preferably, a pressure sensor is installed inside the buffer airbag 7, and the pressure sensor is signal-connected to the motor 44. When the protective net 3 moves downward and contacts the buffer airbag 7, the buffer airbag 7 can act as a buffer. Moreover, when the air pressure value inside the buffer airbag 7 reaches a set threshold, the pressure sensor sends a signal to the controller, and the controller shuts off the motor 44.

[0036] Furthermore, to further enhance the safety of the device, in some embodiments, safety light curtains 6 are provided on the lower parts of both supports 21 near the protective net 3. The presence of objects is detected by emitting and receiving light through the safety light curtains 6 on the left and right sides. When an object blocks the light, the safety light curtain 6 will detect the interruption of light and trigger corresponding safety measures, such as stopping the machine or issuing a warning signal, thereby improving safety.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A warehouse entry platform anti-falling device arranged at an entrance (11) of a warehouse entry platform (1) for material entry, characterized in that: it comprises two supports (21) arranged on the warehouse entry platform (1), a protective net (3) arranged between the two supports (21), and a driving structure for driving the protective net (3) to move to expose or cover the entrance (11); the two supports (21) are respectively provided with a guide portion along the moving direction of the protective net (3), and the two ends of the protective net (3) are respectively provided with a guide block (31) in sliding connection with the guide portion; the connection direction of the guide portion and the guide block (31) is perpendicular to the entering and exiting direction of the entrance (11). the guide portion comprises a guide hole (211), and the guide block (31) is inserted into the guide hole (211).

2. The anti-falling device of a warehousing station according to claim 1, characterized in that: the guide portion comprises a guide rod (212), and the guide block (31) is sleeved on the guide rod (212).

3. The anti-falling device of a warehousing station according to claim 1 or 2, characterized in that: the driving structure comprises a first gear shaft (41) and a second gear shaft (42) in rotational connection with the supports (21), a tooth chain (43) in engagement with the first gear shaft (41) and the second gear shaft (42), and a motor (44) for driving the first gear shaft (41) to rotate; 4. The anti-falling device of a warehousing station according to claim 1, characterized in that: the first gear shaft (41) and the second gear shaft (42) are respectively arranged at the two ends of the support (21) along the moving direction of the protective net (3); the tooth chain (43) comprises a connecting portion between the first gear shaft (41) and the second gear shaft (42), and the guide block (31) is connected to one side of the connecting portion close to the inside of the warehouse entry platform (1). the first gear shaft (41) of the two supports (21) is connected through a connecting shaft (45).

5. The anti-falling device of a warehousing station according to claim 4, characterized in that: the end of the support (21) along the moving direction of the protective net (3) is provided with a touch sensor (5), and the touch sensor (5) is in signal connection with the motor (44).

6. The anti-falling device of a warehousing station according to claim 4, characterized in that: the side of the two supports (21) close to the protective net (3) is provided with a safety grating (6).

7. The anti-falling device of a warehousing station according to claim 1, characterized in that: the part of the warehouse entry platform (1) between the two supports (21) is provided with a buffer airbag (7).

8. The anti-falling device of a warehousing station according to claim 1, characterized in that: a stable cross rod (22) is arranged between the two supports (21).

9. The anti-falling device of a warehousing station according to claim 1, characterized in that: the guide block (31) and the protective net (3) are connected through a connecting sheet (32), the connecting sheet (32) comprises a clamping cavity (321) for clamping and fixing the side edge of the protective net (3), and a fixing column (322) arranged in the clamping cavity (321), and the side edge of the protective net (3) is wound on the fixing column (322).

10. The anti-falling device of a warehousing station according to claim 1, characterized in that: ​

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