A protective device

Abstract

This application relates to the field of material handling technology, specifically to a protective device. This application provides an operating platform comprising an upper first platform and a lower second platform. A first protective component and a second protective component are mounted on the same side of both platforms, forming a double protection system. If either component fails temporarily, the other component can prevent the risk of a fall, ensuring the safety of material transfer and feeding between the two platforms. Specifically, a one-way opening structure restricts the opening direction of the first protective component, preventing accidental activation or external impact that could cause it to open on the dangerous side, and stabilizing the edge protection of the first platform. The drive mechanism can adjust the height of the second protective component; it descends to leave a channel during feeding and rises to form a complete protective surface with the first protective component after feeding, without affecting operation and maintaining protection strength in non-operational states.

Description

Technical Field

[0001] This application relates to the field of material handling technology, specifically to a protective device. Background Technology

[0002] In the raw material feeding stage of milk powder production, due to the requirements of production process layout, equipment height design, and material transportation efficiency, a large number of feeding operations need to be completed on higher platforms. Transporting materials on high platforms has become a common and irreplaceable operational scenario in the industry. In this scenario, workers need to frequently perform material transfer and feeding operations in the high platform area. However, the height difference between the high platform and the ground poses a significant risk of falls should materials tip over or workers lose their balance, seriously threatening the personal safety of workers and the stable operation of production.

[0003] To address the safety requirements of aerial work platform feed inlets, the commonly adopted technical solution in the industry is to equip them with protective doors. During material feeding, workers can open the protective door to allow material to enter the production system through the feed inlet; after feeding is complete, workers close the protective door, thus forming a physical barrier to prevent personnel or debris from accidentally falling into the feed inlet. Some protective doors are also equipped with simple mechanical locking mechanisms, which enhance the closing stability of the protective door through the locking action, attempting to further reduce the possibility of accidental opening and providing basic safety protection for the aerial work platform feed inlet area, mitigating the risk of falls to a certain extent.

[0004] Although the existing feed inlet protective door and its matching mechanical locking structure can provide basic protection, there are still some defects. The existing locking structure of the protective door is mostly manually operated and has a low level of protection. It relies on simple mechanical locking and lacks the design to prevent accidental contact and external damage. During the production process, the staff may accidentally touch the lock due to operational errors, or the protective door may be accidentally hit during material transfer, causing the protective door to be opened accidentally when not in the feeding state. Utility Model Content

[0005] To address the technical problems mentioned in the background section, this application provides a protective device suitable for milk powder feeding. The device includes an operating platform, which comprises a first platform and a second platform. The first platform is positioned on the upper part of the second platform. The first platform includes a first protective component, which is connected to the first platform via a one-way opening structure. The second platform includes a second protective component, which is lifted and lowered via a drive mechanism. The second protective component and the first protective component are both positioned on the same side of the first platform to form multiple layers of protection.

[0006] According to one embodiment of this application, the drive mechanism is configured such that when the first protective component is open, the second protective component rises, and when the first protective component is closed, the second protective component descends.

[0007] According to one embodiment of this application, the drive mechanism is configured such that when feeding, the first protective component opens and the second protective component descends; when feeding is complete, the first protective component closes and the second protective component rises.

[0008] According to one embodiment of this application, the one-way opening structure includes one-way spring-loaded flaps disposed on both sides of the first protective component. One side of the one-way spring-loaded flaps is connected to the first platform. The first protective component is in a closed state by default due to the action of the one-way spring-loaded flaps.

[0009] According to one embodiment of this application, the one-way spring-back hinge is a stainless steel hinge structure.

[0010] According to one embodiment of this application, a drive mechanism is provided on one side of the first platform. The drive mechanism includes a first rod, which is disposed on one side of the second platform and extends above the first platform. A pulley assembly is provided at one end of the first rod near the first platform. The pulley assembly is connected to the second protective component via a rope. The drive mechanism pulls the rope to control the raising and lowering of the second protective component.

[0011] According to one embodiment of this application, a clamping part is provided on one side of the first rod, and the clamping part clamps the side of the second protective component.

[0012] According to one embodiment of this application, during the process from the start of the second protective component's rise to the completion of the rise, the projection of a portion of the structure of the second protective component always overlaps with that of the first protective component.

[0013] According to one embodiment of this application, a partition is provided between the first platform and the second platform. The partition has a portion of its structure extending beyond the plane of the first protective component, and there is a certain distance between one side of the second protective component and one side of the partition.

[0014] According to one embodiment of this application, the first protective component and the second protective component are grid structures, and / or the first protective component and the second protective component are plate structures.

[0015] Compared with existing technologies, the significant technological advancement of this application lies in the following: the operating platform comprises an upper first platform and a lower second platform, both with a first protective component and a second protective component on the same side, forming a double protection. If either component fails temporarily, the other component can prevent the risk of falling, ensuring the safety of material transfer and feeding between the two platforms. Specifically, the one-way opening structure restricts the opening direction of the first protective component, preventing accidental activation or external impact from causing the dangerous side to open, and stabilizing the edge protection of the first platform; the drive mechanism can adjust the height of the second protective component, lowering it to leave a channel during feeding, and raising it after feeding to form a complete protective surface with the first protective component, without affecting operation and maintaining protection strength in non-operational states.

[0016] The first protective component on the first platform and the second protective component on the second platform are both located on the same side of the first platform. They work together to provide dual protection, increasing redundancy. Even if one protective component experiences a temporary failure, the other can still function as a safety barrier. This spatial layout minimizes the risk of personnel falling from the operating platform during milk powder feeding, providing dual safety assurance for material transfer and feeding operations between the first and second platforms. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a protective device provided in an embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the protective device provided in the embodiments of this application during operation.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100 - First platform; 200 - Second platform; 300 - First protective component; 310 - One-way spring hinge; 400 - Second protective component; 510 - First rod; 520 - Pulley assembly; 530 - Clamping part.

[0022] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0025] Secondly, it should be noted that in the description of this application, the terms "front", "rear", "left", "right", "up", "down", "inner", "outer", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0026] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] In the description of this application, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this application, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] In the raw material feeding stage of milk powder production, due to the requirements of production process layout, equipment height design, and material transportation efficiency, a large number of feeding operations need to be completed on higher platforms. Transporting materials on high platforms has become a common and irreplaceable operational scenario in the industry. In this scenario, workers need to frequently perform material transfer and feeding operations in the high platform area. However, the height difference between the high platform and the ground poses a significant risk of falls should materials tip over or workers lose their balance, seriously threatening the personal safety of workers and the stable operation of production.

[0029] To address the safety requirements of aerial work platform feed inlets, the commonly adopted technical solution in the industry is to equip them with protective doors. During material feeding, workers can open the protective door to allow material to enter the production system through the feed inlet; after feeding is complete, workers close the protective door, thus forming a physical barrier to prevent personnel or debris from accidentally falling into the feed inlet. Some protective doors are also equipped with simple mechanical locking mechanisms, which enhance the closing stability of the protective door through the locking action, attempting to further reduce the possibility of accidental opening and providing basic safety protection for the aerial work platform feed inlet area, mitigating the risk of falls to a certain extent.

[0030] Although the existing feed inlet protective door and its matching mechanical locking structure can provide basic protection, there are still some defects. The existing locking structure of the protective door is mostly manually operated and has a low level of protection. It relies on simple mechanical locking and lacks the design to prevent accidental contact and external damage. During the production process, the staff may accidentally touch the lock due to operational errors, or the protective door may be accidentally hit during material transfer, causing the protective door to be opened accidentally when not in the feeding state.

[0031] Figure 1 This is a schematic diagram of the structure of a protective device provided in an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the protective device provided in the embodiments of this application during operation.

[0033] To address the technical problems mentioned in the background section, this application provides a protective device suitable for milk powder dispensing scenarios. The device includes an operating platform, such as... Figure 1 and Figure 2As shown, the operating platform includes a first platform 100 and a second platform 200. The first platform 100 is located on top of the second platform 200. The first platform 100 includes a first protective component 300, which is connected to the first platform 100 through a one-way opening structure. The second platform 200 includes a second protective component 400, which is lifted and lowered by a drive mechanism. The second protective component 400 and the first protective component 300 are both located on the same side of the first platform 100 to form multiple protections.

[0034] It should be noted that the first protective component 300 on the first platform 100 and the second protective component 400 on the second platform 200 are both located on the same side of the first platform 100. They work together to provide double protection, increasing the redundancy of protection. Even if either protective component experiences a temporary failure, the other component can still provide a safety barrier. This spatial layout minimizes the risk of personnel falling from the operating platform during milk powder feeding, providing double safety assurance for material transfer and feeding operations between the first platform 100 and the second platform 200.

[0035] Furthermore, the first protective component 300 is connected to the first platform 100 via a one-way opening structure. This design strictly limits the opening direction of the first protective component 300, preventing accidental opening of the protective component to the dangerous side when operators are working on the first platform 100. It also prevents external debris from accidentally impacting and opening the protective component, ensuring the protective stability of the edge of the first platform 100. The second protective component 400 on one side of the second platform 200 is raised and lowered via a drive mechanism. Its height can be flexibly adjusted according to actual feeding needs. When materials need to be transferred from the second platform 200 to the first platform 100, the drive mechanism lowers the second protective component 400 to reserve a channel for material transfer. After feeding is completed, the second protective component 400 quickly rises and resets, forming a complete protective surface with the first protective component 300. This does not affect the normal operation of milk powder feeding and can maintain high-strength protection when not in operation.

[0036] It should also be noted that, given the frequent material handling and high usage frequency of the operating platform during milk powder feeding, the one-way opening structure of the first protective component 300 requires no complicated operation, allowing staff to quickly open and close the protective component, meeting the needs of efficient operation during feeding; the lifting mechanism of the second protective component 400 avoids the cumbersome traditional manual adjustment of the protective structure, reduces the frequency of contact between staff and the protective component, and lowers the risk of operational errors.

[0037] According to one embodiment of this application, the drive mechanism is configured such that when the first protective component 300 is opened, the second protective component 400 rises, and when the first protective component 300 is closed, the second protective component 400 falls.

[0038] It should be noted that this implementation method is a feasible control logic in this application. If workers forget to manually activate the second protective component 400 after opening the first protective component 300, or fail to lower the second protective component 400 in a timely manner after closing the first protective component 300, safety hazards may arise. This implementation method, through the linkage control of the drive mechanism and the first protective component 300, automatically binds the activation and deactivation of the protective component to the opening and closing state of the first protective component 300, eliminating the need for additional operation by workers. When the first protective component 300 is opened due to material feeding needs, the second protective component 400 will automatically rise via the drive mechanism, preventing a lack of protection due to human forgetfulness or misoperation; when the first protective component 300 is closed and no additional protection is needed, the second protective component 400 will automatically descend, preventing it from affecting work efficiency due to prolonged exposure to the raised state or being damaged by accidental collisions.

[0039] According to one embodiment of this application, the drive mechanism is configured such that when feeding, the first protective component 300 opens and the second protective component 400 descends; when feeding is completed, the first protective component 300 closes and the second protective component 400 rises.

[0040] It should be noted that this implementation method represents another feasible control logic in this application. Since the feeding method used in this application involves forklifts stacking goods and workers handling them, the second protective component 400 is located near the second platform 200 during the handling process, and the stacked materials can also form a protective barrier. Specifically, during feeding, the first protective component 300 opens to form a material delivery channel, while the drive mechanism controls the second protective component 400 to descend, reserving sufficient space for material transfer from the operating platform and preventing the second protective component 400 from obstructing the feeding action. Workers can smoothly complete operations such as material dumping and conveying. After feeding is completed, the first protective component 300 closes to initially block the protective gap, and the drive mechanism simultaneously raises the second protective component 400 to quickly fill the gap and form a complete protective surface. When the first protective component 300 is closed and no additional protection is needed, the second protective component 400 automatically descends to prevent it from affecting operational efficiency due to prolonged exposure to the raised state or being damaged by accidental collisions.

[0041] According to one embodiment of this application, the one-way opening structure includes one-way spring-loaded flaps 310 disposed on both sides of the first protective component 300. One side of the one-way spring-loaded flaps 310 is connected to the first platform 100. The first protective component 300 is in a closed state by default due to the action of the one-way spring-loaded flaps 310.

[0042] It should be noted that the one-way spring-loaded hinge 310 in this application is a stainless steel hinge structure. The one-way opening structure is achieved by configuring one-way spring-loaded hinges 310 with stainless steel hinge structures on both sides of the first protective component 300, and connecting one side of them to the first platform 100. Utilizing the spring-loaded characteristics of the one-way spring-loaded hinge 310, the first protective component 300 is always in the closed state by default. Even if it does not close actively after feeding, the one-way spring-loaded hinge 310 will automatically drive to reset, ensuring that the edge protection barrier of the first platform 100 continues to exist, effectively preventing personnel from accidentally approaching during non-operational periods and the risk of debris falling.

[0043] According to one embodiment of this application, a driving mechanism is provided on one side of the first platform 100. The driving mechanism includes a first rod 510, which is disposed on one side of the second platform 200 and extends above the first platform 100. A pulley assembly 520 is provided at one end of the first rod 510 near the first platform 100. The pulley assembly 520 is connected to the second protective component 400 through a rope. The driving mechanism pulls the rope to control the lifting and lowering of the second protective component 400.

[0044] It should be noted that the first rod 510 is set on one side of the second platform 200 and extends above the first platform 100, which not only provides stable installation support for the pulley assembly 520, but also ensures that the pulley assembly 520 is at a height that can effectively pull the second protective component 400. The pulley assembly 520 is connected to the second protective component 400 through a rope. By utilizing the force-saving characteristics and direction conversion function of the pulley, the pulling action of the drive mechanism on the rope can be smoothly converted into the lifting and lowering motion of the second protective component 400.

[0045] Furthermore, the pulley assembly 520 is located at one end of the first rod 510 near the first platform 100, so that the direction of the rope traction can conform to the height difference between the two platforms, reducing the risk of rope deviation or entanglement during the traction process, and ensuring that the drive mechanism can still operate stably in the compact space of the multi-layer platform.

[0046] According to one embodiment of this application, a clamping part 530 is provided on one side of the first rod 510, and the clamping part 530 clamps the side of the second protective component 400.

[0047] It should be noted that the clamping part 530 on one side of the first rod 510 directly clamps the side of the second protective component 400, forming a rigid lateral constraint on the second protective component 400. In traditional structures that rely solely on rope traction, the second protective component 400 is prone to deviation in its lifting trajectory due to uneven rope tension, material impact, and other factors, resulting in inconsistent lifting speeds on both sides, or even tilting and jamming. However, the clamping part 530, by tightly fitting against the side of the second protective component 400, can force it to lift and lower in a preset vertical direction, ensuring that the overall lifting and lowering action of the second protective component 400 is synchronized and stable, avoiding protective gaps or component jamming caused by local deviations. Especially in milk powder feeding scenarios, it can effectively prevent material spillage or protective failure due to the tilting of the second protective component 400.

[0048] According to one embodiment of this application, during the process from the start of the second protective component 400's rise to the completion of the rise, the projection of a portion of the structure of the second protective component 400 always overlaps with the first protective component 300.

[0049] According to one embodiment of this application, a partition is provided between the first platform 100 and the second platform 200. The partition has a portion of its structure extending beyond the plane of the first protective component 300, and there is a certain distance between one side of the second protective component 400 and one side of the partition.

[0050] It should be noted that after the milk powder is fed, the first protective component 300 begins to close, and the second protective component 400 starts to rise. Even if the first protective component 300 is not fully closed, or the second protective component 400 is in a transitional state where it is not fully raised, the overlapping projection area of ​​the two can always cover the high-risk points on the edge of the first platform 100, avoiding temporary lack of protection due to asynchronous operation of the protective components.

[0051] According to one embodiment provided in this application, the first protective component 300 and the second protective component 400 are grid structures, and / or the first protective component 300 and the second protective component 400 are plate structures.

[0052] It should be noted that when the first protective component 300 and the second protective component 400 adopt a grid structure, the open design of the grid ensures the protective function while allowing air circulation between the operating platform and the external environment. This prevents material dust from accumulating on the surface of the protective components and creating safety hazards during milk powder feeding. It also facilitates workers' observation of the material transfer status below the platform or inside the feed inlet, reducing operational errors caused by obstructed vision. If the first protective component 300 and the second protective component 400 adopt a plate structure, their complete planar shape can form a more robust protective barrier, effectively preventing milk powder dust and fine material particles from leaking out from the gaps in the protective components. This prevents dust from spreading and polluting the production environment, while also preventing external debris from entering the operating platform and affecting the feeding operation.

[0053] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0054] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A protective device suitable for dispensing milk powder, characterized in that, The system includes an operating platform, which comprises a first platform (100) and a second platform (200). The first platform (100) is disposed on the upper end of the second platform (200). The first platform (100) includes a first protective component (300), which is connected to the first platform (100) through a one-way opening structure. The second platform (200) includes a second protective component (400), which is lifted and lowered by a drive mechanism. The second protective component (400) and the first protective component (300) are both disposed on the same side of the first platform (100) to form multiple protections.

2. The protective device according to claim 1, characterized in that, The drive mechanism is configured such that when the first protective component (300) is open, the second protective component (400) rises, and when the first protective component (300) is closed, the second protective component (400) falls.

3. The protective device according to claim 1, characterized in that, When the drive mechanism is configured to feed, the first protective component (300) opens and the second protective component (400) descends; when feeding is completed, the first protective component (300) closes and the second protective component (400) rises.

4. A protective device according to claim 1, characterized in that, The one-way opening structure includes one-way spring-loaded flaps (310) disposed on both sides of the first protective component (300). One side of the one-way spring-loaded flaps (310) is connected to the first platform (100). The first protective component (300) is in a closed state by default due to the action of the one-way spring-loaded flaps (310).

5. A protective device according to claim 4, characterized in that, The one-way spring-back hinge (310) is a stainless steel hinge structure.

6. A protective device according to claim 1, characterized in that, The drive mechanism is provided on one side of the first platform (100). The drive mechanism includes a first rod (510). The first rod (510) is located on one side of the second platform (200) and extends above the first platform (100). A pulley assembly (520) is provided at one end of the first rod (510) near the first platform (100). The pulley assembly (520) is connected to the second protective component (400) by a rope. The drive mechanism pulls the rope to control the lifting and lowering of the second protective component (400).

7. A protective device according to claim 6, characterized in that, A clamping part (530) is provided on one side of the first rod (510), and the clamping part (530) clamps the side of the second protective component (400).

8. A protective device according to claim 1, characterized in that, During the process from the start of the second protective component (400) to the completion of the lifting, the projection of a portion of the structure of the second protective component (400) always overlaps with that of the first protective component (300).

9. A protective device according to any one of claims 1-8, characterized in that, A partition is provided between the first platform (100) and the second platform (200). Part of the partition extends beyond the plane of the first protective component (300). One side of the second protective component (400) is spaced apart from one side of the partition.

10. A protective device according to any one of claims 1-8, characterized in that, The first protective component (300) and the second protective component (400) are grid structures, and / or the first protective component (300) and the second protective component (400) are plate structures.

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