Multifunctional protection device

Abstract

The invention provides a multifunctional protection device which comprises a supporting frame, a shear fork type anti-falling net, a protection reel and a push-pull curtain door, the protection reel, the shear fork type anti-falling net and the push-pull curtain door are arranged from top to bottom, and the protection reel comprises a reel shell, a rotating shaft, fireproof engineering cloth wound on the rotating shaft and a first driving assembly for driving fireproof engineering to stretch out and draw back. The shear fork type anti-falling net comprises a shear fork net body and a second driving assembly for driving the shear fork net body to stretch out and draw back, and the push-pull curtain door comprises a supporting rod transversely arranged in the supporting frame, a plurality of bearing plates arranged in the supporting rod at intervals, a shear fork structure connected with the bearing plates and a third driving assembly for driving the bearing plates to slide. The multifunctional protection device further comprises a sensing assembly, the sensing assembly is electrically connected with the built-in system, and the built-in system is electrically connected with the first driving assembly, the second driving assembly and the third driving assembly. The whole protection device can be comprehensively supported in the aspects of supporting safety, ventilation and functionality.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection, and in particular to a multifunctional protection device. Background Art

[0002] Numerous areas with fall risks exist in industrial production, construction, commercial operations, and everyday life. For example, open trenches are common in industrial plants, municipal facilities, and other locations. Currently, most of these open areas lack effective protective measures. People walking or working in these areas can easily fall into trenches or sunken areas below pedestrian level due to negligence or accident, resulting in serious personal injury or financial loss.

[0003] Some existing protection solutions often utilize traditional mechanical push-pull or rope-drawn nets, which have significant drawbacks. Mechanical push-pull nets are inconvenient to operate, heavy, and subject to uneven force, making them prone to jamming. Opening and closing them takes approximately two minutes, which is labor-intensive and reduces efficiency. Manual operation can easily trap the operator's hands, and when fully opened, they occupy approximately half of the trench's effective working space, resulting in low space utilization. Rope-drawn nets, however, lower the trench's height due to the drooping of the wires, hindering movement. They also have low resistance to falling objects, resulting in a poor safety factor.

[0004] Similarly, in other scenarios with falling risks, such as the edges of high-altitude platforms and elevator shafts, existing protective measures also have more or less similar problems, such as inconvenient operation, great safety hazards, large space occupation and high costs. They also have fewer functions and can only provide simple protection. They cannot change the protection strategy according to the actual environment, resulting in the inability to effectively take into account safety, ventilation and functionality. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a multifunctional protective device, aiming to solve the technical problems mentioned in the background technology.

[0006] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0007] A multifunctional protective device comprises a support frame, and a scissors-type anti-fall net, a protective reel and a sliding curtain door arranged in the support frame, the protective reel, the scissors-type anti-fall net, and the sliding curtain door being arranged in sequence from top to bottom, the protective reel comprising a reel housing, a rotating shaft arranged in the reel housing, a fireproof engineering cloth wound on the rotating shaft, and a first drive component for driving the fireproof engineering cloth to extend and retract along the support frame, the scissors-type anti-fall net comprises a scissors-type net body, and a second drive component for driving the scissors-type net body to extend and retract along the support frame, the sliding curtain door comprises a support rod horizontally arranged in the support frame, a plurality of bearing plates arranged at intervals in the support rod, a scissors-type structure connecting the plurality of bearing plates, and a third drive component for driving the bearing plates to slide along the support rod, the multifunctional protective device also comprises an induction component arranged at the work site, the induction component is electrically connected to the built-in system, and the built-in system is electrically connected to the first drive component, the second drive component and the third drive component.

[0008] According to one aspect of the above technical solution, the support frame includes a frame top and two frame rods arranged opposite to each other below the frame top.

[0009] According to one aspect of the above technical solution, the reel shell is fixed to the side of the frame top close to the frame rod, and a strip hole is provided under the reel shell for the free end of the fireproof engineering cloth to extend out, and a spiral spring is provided between the rotating shaft and the reel shell.

[0010] According to one aspect of the above technical solution, a first sliding groove is provided on both of the frame rods, and the first driving assembly includes a first servo motor arranged in the first sliding groove, a ball screw connected to the first servo motor and rotating in the first sliding groove, a edging covered on the free end of the fireproof engineering cloth, and two sliding blocks arranged at both ends of the edging, and the sliding blocks are threadedly connected to the ball screw.

[0011] According to one aspect of the above technical solution, the scissors net body includes a first fixed plate detachably connected to the bottom of the frame top, and multiple second fixed plates located below the first fixed plate. The scissors net body also includes a first diagonal rod and a second diagonal rod rotatably arranged between the first fixed plate and the second fixed plate, and between adjacent second fixed plates. The first diagonal rod and the second diagonal rod are cross-arranged, and a rotating rod is rotatably provided between the first diagonal rod and the second diagonal rod. The first fixed plate and the second fixed plate are provided with a second sliding groove for the first diagonal rod and the second diagonal rod to slide.

[0012] According to one aspect of the above technical solution, a third sliding groove is provided on each of the two frame rods, and the second driving assembly includes a driving shaft horizontally arranged between the two frame rods, two friction driving wheels respectively arranged at both ends of the driving shaft, a bearing seat connecting the driving shaft and the second fixed plate at the bottom, and a second servo motor fixedly connected to the second fixed plate at the bottom, a chain assembly connecting the second servo motor and the driving shaft, the second driving assembly also includes two pulleys respectively arranged at both ends of the second fixed plate, a groove-shaped rod vertically arranged on the supporting frame, and a sliding rod arranged on the second fixed plate, the groove-shaped rod is provided with a sliding groove passing through the sliding rod, the sliding rod is slidably arranged in the sliding groove, the pulley abuts against the inner side wall of the third sliding groove, the inner side wall of the third sliding groove is provided with a supporting rail, and the friction driving wheel is slidably connected to the supporting rail.

[0013] According to one aspect of the above technical solution, two support rods are vertically provided, and the upper and lower ends of the supporting plate are passed through the two support rods. The scissors structure includes a hinge seat installed on each of the supporting plates, and a scissors rod continuously provided on each of the hinge seats.

[0014] According to one aspect of the above technical solution, the third driving assembly includes a cylinder installed on the top of the frame and a fixing seat fixed to the edge of the supporting plate, and the protruding end of the cylinder is connected to the fixing seat.

[0015] According to one aspect of the above technical solution, the sensing component includes a vehicle and pedestrian sensor, a dust sensor, and a fire sensor.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By arranging protective reels, scissor-type anti-fall nets and sliding curtain doors from top to bottom on the support frame, and deploying sensing components at the work site, electrically connecting the sensing components to the built-in system, and then electrically connecting the built-in system to the first drive component, the second drive component and the third drive component, the built-in system controls the operation of different drive components according to the monitoring status of the sensing components, so that the entire protective device can be fully supported in terms of support safety, ventilation and functionality. For example, the vehicle and pedestrian sensor can be an infrared sensor, which determines whether there are pedestrians or vehicles entering by analyzing the infrared characteristics of vehicles or pedestrians. If it is a pedestrian, the built-in system starts the second drive component to make the scissors net body expand and contract into a mesh shape along the support frame, which has good strength while taking into account ventilation. If it is a vehicle or other sensing equipment determines that higher support strength is required, the built-in system starts the third drive component to make the supporting plate extend laterally along the support frame. The combination of the scissors net body and the supporting plate is a dense field structure. The double-layer protection can greatly improve the support strength. At this time, sacrificing some ventilation is acceptable. If the dust sensor (such as a dust sensor) or fire sensor (such as a smoke sensor) at the work site detects the corresponding problem, the built-in system starts the first drive component to drive the fireproof engineering cloth to expand to prevent fire and dust, thereby ensuring the health of the staff. In other embodiments, more types of sensors can be combined to achieve more diverse solutions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic diagram of the structure of the multifunctional protective device in the first embodiment of the present invention at a first viewing angle;

[0019] Figure 2 2. It is a schematic structural diagram of the multifunctional protective device in the first embodiment of the present invention at a second viewing angle;

[0020] Figure 3 for Figure 2 Schematic diagram of the structure at the middle protection scroll;

[0021] Figure 4 for Figure 3 A magnified view of the local structure of the fire protection engineering layout;

[0022] Figure 5 for Figure 1 Structural diagram of the middle scissor-type anti-fall net;

[0023] Figure 6 for Figure 5 A magnified view of the local structure at the third sliding groove;

[0024] Figure 7 for Figure 5 A schematic diagram of the structure of the locking structure between the top of the middle frame and the first fixing plate;

[0025] Figure 8 for Figure 1 Structural diagram of the middle sliding curtain door;

[0026] Description of main component symbols:

[0027]

[0028]

[0029] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] See also Figures 1 to 8, shown is a multifunctional protective device in the first embodiment of the present invention, comprising a support frame, and a scissor-type anti-falling net 30, a protective reel 20 and a sliding curtain door 40 arranged in the support frame, wherein the protective reel 20, the scissor-type anti-falling net 30 and the sliding curtain door 40 are arranged in sequence from top to bottom, the protective reel 20 comprises a reel housing 21, a rotating shaft arranged in the reel housing 21, a fireproof engineering cloth 22 wound on the rotating shaft, and a first driving component for driving the fireproof engineering cloth 22 to extend and retract along the support frame, the scissor-type anti-falling net 30 comprises The multifunctional protective device further comprises a scissor-type mesh body and a second drive assembly that drives the scissor-type mesh body to extend and retract along the support frame. The sliding curtain door 40 comprises a support rod horizontally arranged in the support frame, a plurality of support plates 41 spaced apart in the support rod, a scissor-type structure connecting the plurality of support plates 41, and a third drive assembly that drives the support plates 41 to slide along the support rod. The multifunctional protective device further comprises a sensing assembly that is electrically connected to a built-in system, and the built-in system is electrically connected to the first drive assembly, the second drive assembly, and the third drive assembly. Specifically, the sensing assembly includes a vehicle and pedestrian sensor, a dust sensor, and a fire sensor.

[0034] It can be understood that by arranging the protective reel 20, the scissor-type anti-fall net 30 and the sliding curtain door 40 from top to bottom on the support frame, and arranging the sensing component at the work site, the sensing component is electrically connected to the built-in system, and then the built-in system is electrically connected to the first drive component, the second drive component and the third drive component. The built-in system controls the operation of different drive components according to the monitoring status of the sensing component, so that the entire protective device can be fully supported in terms of support safety, ventilation and functionality. For example, the vehicle pedestrian sensor can be an infrared sensor, which determines whether there are pedestrians or vehicles entering by analyzing the infrared characteristics of vehicles or pedestrians. If it is a pedestrian, the built-in system starts the second drive component to make the scissors net body expand and contract into a mesh shape along the support frame, which has good strength while taking into account ventilation. If it is a vehicle or other sensing equipment determines that higher support strength is required, the built-in system starts the third drive component to make the supporting plate 41 extend laterally along the support frame. The combination of the scissors net body and the supporting plate 41 is a dense field structure. The double-layer protection can greatly improve the support strength. At this time, sacrificing some ventilation is acceptable. If the dust sensor (such as a dust sensor) or fire sensor (such as a smoke sensor) at the work site detects the corresponding problem, the built-in system starts the first drive component to drive the fireproof engineering cloth 22 to expand for fire and dust prevention, thereby ensuring the health of the staff. In other embodiments, more types of sensors can be combined to achieve more diverse solutions.

[0035] Specifically, the support frame includes a frame top 10 and two frame rods 11 arranged opposite to each other below the frame top 10 .

[0036] It can be understood that the free ends of the frame top 10 and the two frame rods 11 can be fixed in different positions (mostly flat) according to the working scene.

[0037] Furthermore, the reel shell 21 is fixed to the side of the frame top 10 close to the frame rod 11, and a strip hole 28 is provided under the reel shell 21 for the free end of the fire-proof engineering cloth 22 to extend out, and a spiral spring is provided between the rotating shaft and the reel shell 21; a first sliding groove 23 is provided on both of the frame rods 11, and the first driving assembly includes a first servo motor 24 arranged in the first sliding groove 23, a ball screw 25 connected to the first servo motor 24 and rotating in the first sliding groove 23, a edging 26 covering the free end of the fire-proof engineering cloth 22, and two sliding blocks 27 arranged at both ends of the edging 26, and the sliding block 27 is threadedly connected to the ball screw 25.

[0038] It is understandable that the driving method of the fireproof engineering cloth 22 is similar to that of an electric rolling door. One end of the fireproof engineering cloth 22 is fixed to a rotating shaft, and then the fireproof engineering cloth 22 is wound around the rotating shaft. A vortex spring (located inside the reel housing 21, not shown in the figure) is provided between the rotating shaft and the reel housing 21. Since the fireproof engineering cloth 22 has a certain degree of flexibility. Therefore, a motor is not used to drive the rotating shaft to rotate, but the end of the fireproof engineering cloth 22 is pulled to drive the fireproof engineering cloth 22 to descend. Specifically, when the fireproof engineering cloth 22 needs to be pulled down, the first servo motor 24 drives the ball screw 25 to rotate, so that the sliding blocks 27 at both ends of the edge 26 of the fireproof engineering cloth 22 descend along the ball screw 25 to drive the fireproof engineering cloth 22 to descend. At this time, the vortex spring is opened, and the size of the sliding block 27 is consistent with the first sliding groove 23, so that the first sliding groove 23 can guide the sliding block 27. In some other preferred embodiments, other guiding structures such as guide rods can also be provided. When the fireproof engineering cloth 22 needs to rise, the sliding block 27 is raised along the ball screw 25, and the contraction of the vortex spring can drive the rotating shaft to reverse, so as to rewind the fireproof engineering cloth 22.

[0039] Furthermore, the scissors net body includes a first fixed plate 31 detachably connected to the bottom of the frame top 10, and a plurality of second fixed plates 32 located below the first fixed plate 31, the scissors net body also includes a first oblique rod 33 and a second oblique rod 34 rotatably arranged between the first fixed plate 31 and the second fixed plate 32, and between adjacent second fixed plates 32, the first oblique rod 33 and the second oblique rod 34 are cross-arranged, a rotating rod 35 is rotatably arranged between the first oblique rod 33 and the second oblique rod 34, the first fixed plate 31 and the second fixed plate 32 are provided with a second sliding groove 56 for the first oblique rod 33 and the second oblique rod 34 to slide; the two frame rods 11 are provided with a third sliding groove 50, and the second drive assembly includes a drive shaft 32 transversely arranged between the two frame rods 11 8. Two friction drive wheels 55 respectively arranged at both ends of the drive shaft 38, a bearing seat 39 connecting the drive shaft 38 and the second fixed plate 32 at the bottom, a second servo motor 36 fixed to the second fixed plate 32 at the bottom, and a chain assembly 37 connecting the second servo motor 36 and the drive shaft 38. The second drive assembly also includes two pulleys 53 respectively arranged at both ends of the second fixed plate 32, a grooved rod 51 vertically arranged on the supporting frame, and a sliding rod 54 arranged on the second fixed plate 32. A sliding groove is provided on the grooved rod 51, and the sliding rod 54 is slidably arranged in the sliding groove. The pulley 53 abuts against the inner side wall of the third sliding groove 50. A supporting rail 52 is provided in the inner side wall of the third sliding groove 50, and the friction drive wheel 55 is slidably connected to the supporting rail 52.

[0040] It can be understood that when it is necessary to adjust the telescopic condition of the scissors net body, the second servo motor 36 on the last second fixed plate 32 rotates, and drives the drive shaft 38 to rotate on the bearing seat 39 through the chain assembly 37. The rotation of the bearing seat 39 drives the friction drive wheels 55 at both ends to rotate. Since the friction drive wheel 55 is in close contact with the support rail 52, the friction drive wheel 55 will move on the support rail 52 due to friction, thereby driving the last second fixed plate 32 to move. Since multiple fixed plates are connected by the first diagonal rod 33 and the second diagonal rod 34, the movement of the last second fixed plate 32 will drive the remaining second fixed plates 32 to move through the scissor-type first diagonal rod 33 and the second diagonal rod 34, thereby realizing the expansion of the overall structure. The role of the grooved rod 51 and the sliding rod 54 is to limit the left and right deviation of the second fixed plate 32 when it moves, and the role of the pulley 53 is to make the second fixed plate 32 move more smoothly. , reducing friction. In some preferred embodiments, a protective box is provided at the chain assembly 37 to prevent the chain assembly 37 from accidentally pinching people and accumulating dust. In this embodiment, the frame top 10 and the first fixed plate 31 are detachably connected by a locking structure. The locking structure is a locking tongue 58 provided on the first fixed plate 31 and a lock 57 provided at the frame top 10. When encountering the following scenario, the lock between the first fixed plate 31 and the frame top 10 can be released by the locking structure, so that the first fixed plate 31 can be manually slid to other positions to meet special scenario requirements: for example, above the position of an elevator shaft, there is a pedestrian staircase on the left and a road on the right. When the pedestrian staircase is in heavy use and the road is closed, the first fixed plate 31 can be moved to the left together with the other components, focusing on strengthening the safety under the pedestrian staircase, while allowing good ventilation under the road, greatly improving space utilization.

[0041] It should be noted that the diagram is merely a simplified diagram, and the number of the second fixing plate 32 , the first oblique rod 33 , and the second oblique rod 34 is adjusted according to the actual situation (protection area).

[0042] Furthermore, two support rods are vertically provided, and the upper and lower ends of the supporting plate 41 are passed through the two support rods. The scissors structure includes a hinged seat 45 installed on each of the supporting plates 41, and a scissors rod 42 continuously provided on each of the hinged seat 45; the third driving assembly includes a cylinder 44 installed on the frame top 10, and a fixed seat 43 on the supporting plate 41 fixed to the edge, and the protruding end of the cylinder 44 is connected to the fixed seat 43.

[0043] It can be understood that when it is necessary to drive multiple load-bearing plates 41 to move, the farthest load-bearing plate 41 is driven to move by the oil cylinder 44, and the farthest load-bearing plate 41 drives the remaining load-bearing plates 41 to move at equal intervals through the scissors-type structure (the first load-bearing plate 41 is fixed on the frame rod 11). The cooperation between the load-bearing plate 41 and the scissors-type anti-fall net 30 provides double-layer protection for the work site.

[0044] The first servo motor 24 , the second servo motor 36 and the hydraulic cylinder 44 are all electrically connected to the built-in system.

[0045] In summary, the multifunctional protective device in the above-mentioned embodiment of the present invention has a built-in system that controls the operation of different driving components according to the monitoring status of the sensing component, so that the entire protective device can, under appropriate circumstances, fully support the overall structure in terms of supporting safety, ventilation, and functionality.

[0046] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations 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 any one or more embodiments or examples.

[0047] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A multifunctional protective device, characterized in that: It includes a support frame, and a scissors-type anti-fall net, a protective reel and a sliding curtain door arranged in the support frame. The protective reel, the scissors-type anti-fall net, and the sliding curtain door are arranged in sequence from top to bottom. The protective reel includes a reel shell, a rotating shaft arranged in the reel shell, a fire-proof engineering cloth rolled on the rotating shaft, and a first drive component that drives the fire-proof engineering cloth to be extended and retracted along the support frame. The scissors-type anti-fall net includes a scissors-type net body and a second drive component that drives the scissors-type net body to be extended and retracted along the support frame. The sliding curtain door includes a support rod horizontally arranged in the support frame, a plurality of bearing plates arranged at intervals in the support rod, a scissors-type structure connecting the plurality of bearing plates, and a third drive component that drives the bearing plates to slide along the support rod. The multifunctional protective device also includes an induction component arranged at the work site, the induction component is electrically connected to the built-in system, and the built-in system is electrically connected to the first drive component, the second drive component and the third drive component.

2. The multifunctional protective device according to claim 1, characterized in that: The supporting frame includes a frame top and two frame rods arranged opposite to each other below the frame top.

3. The multifunctional protective device according to claim 2, characterized in that: The reel housing is fixed to one side of the frame top close to the frame rod, a strip hole is provided below the reel housing for the free end of the fireproof engineering cloth to extend out, and a vortex spring is provided between the rotating shaft and the reel housing.

4. The multifunctional protective device according to claim 3, characterized in that: A first sliding groove is provided on each of the two frame rods, and the first driving assembly includes a first servo motor arranged in the first sliding groove, a ball screw connected to the first servo motor and rotating in the first sliding groove, a edging covered on the free end of the fireproof engineering cloth, and two sliding blocks arranged at both ends of the edging, and the sliding blocks are threadedly connected to the ball screw.

5. The multifunctional protective device according to claim 2, characterized in that: The scissors net body includes a first fixed plate detachably connected to the bottom of the frame top, and multiple second fixed plates located below the first fixed plate. The scissors net body also includes a first diagonal rod and a second diagonal rod rotatably arranged between the first fixed plate and the second fixed plate, and between adjacent second fixed plates. The first diagonal rod and the second diagonal rod are cross-arranged, and a rotating rod is rotatably provided between the first diagonal rod and the second diagonal rod. The first fixed plate and the second fixed plate are provided with second sliding grooves for the first diagonal rod and the second diagonal rod to slide.

6. The multifunctional protective device according to claim 5, characterized in that: The two frame rods are each provided with a third sliding groove, and the second driving assembly includes a driving shaft horizontally arranged between the two frame rods, two friction driving wheels respectively arranged at both ends of the driving shaft, a bearing seat connecting the driving shaft and the second fixed plate at the bottom, and a second servo motor fixedly connected to the second fixed plate at the bottom, a chain assembly connecting the second servo motor and the driving shaft, the second driving assembly also includes two pulleys respectively arranged at both ends of the second fixed plate, a groove-shaped rod vertically arranged on the supporting frame, and a sliding rod arranged on the second fixed plate, the groove-shaped rod is penetrated by a sliding groove, the sliding rod is slidably arranged in the sliding groove, the pulley abuts against the inner side wall of the third sliding groove, the inner side wall of the third sliding groove is provided with a supporting rail, and the friction driving wheel is slidably connected to the supporting rail.

7. The multifunctional protective device according to claim 2, characterized in that: Two support rods are vertically provided, and the upper and lower ends of the bearing plate are passed through the two support rods. The scissor structure includes a hinge seat installed on each of the bearing plates, and a scissor rod continuously provided on each of the hinge seats.

8. The multifunctional protective device according to claim 7, characterized in that: The third driving assembly includes an oil cylinder installed on the top of the frame and a fixing seat fixed to the edge of the supporting plate, and the protruding end of the oil cylinder is connected to the fixing seat.

9. The multifunctional protective device according to claim 1, characterized in that: The sensing components include vehicle and pedestrian sensors, dust sensors, and fire sensors.

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