Temporary protection device for platform work area

Abstract

A platform operation area temporary protection device is provided, which comprises a fixed support, a first guardrail, a second guardrail, a first connecting rod and a second connecting rod. The fixed support, the first connecting rod and the second connecting rod are arranged on both sides of the protection device in the width direction. The middle part of the first connecting rod is rotatably connected to the fixed support, and the two ends of the first connecting rod are rotatably connected to the first guardrail and the second guardrail respectively. One end of each of the two second connecting rods is rotatably connected to the fixed support, and the other end of each of the two second connecting rods is rotatably connected to the first guardrail and the second guardrail respectively. The protection device can be switched between a first state and a second state by rotating the first connecting rod. In the first state, the first guardrail falls down and the second guardrail rises up; in the second state, the first guardrail rises up and the second guardrail falls down.

Description

Technical Field

[0001] This application relates to the field of safety protection device technology, and in particular to a temporary protective device for platform operation areas. Background Technology

[0002] Some work platforms (especially suspended work platforms) have limited working area, and the adjacent areas of the work platform sometimes need to be used as temporary work areas such as unloading areas. During unloading and other temporary operations, in order to avoid the temporary operations affecting the workers on the work platform, and also to prevent workers from accidentally entering the temporary work area, temporary protective devices are needed to isolate the temporary work area from the other spaces of the work platform.

[0003] CN219100920U provides a flip-up barrier, including a fence and a flip-up guardrail. The fence has at least one entrance / exit, and the flip-up guardrail includes a movable guardrail and a flipping frame. The movable guardrail is fixed to the flipping frame, which is rotatably mounted on one side of the entrance / exit. Flipping the frame causes the movable guardrail to close or open the entrance / exit.

[0004] The aforementioned utility model discloses a flip-up barrier that, when the entrance and exit are opened, does not simultaneously isolate a temporary work area and provide isolation and protection for the temporary work area. Platform staff may accidentally enter the temporary work area, creating a safety hazard. Summary of the Invention

[0005] This application is made in view of the aforementioned state of the prior art. The purpose of this application is to provide a temporary protective device for platform operation areas, which can isolate and protect the temporary operation area during temporary operations.

[0006] This application provides a temporary protective device for a platform work area, which includes a fixed support, a first guardrail, a second guardrail, a first connecting rod, and a second connecting rod.

[0007] The protective device is provided with a fixed bracket, a first connecting rod, and a second connecting rod on both sides in the width direction.

[0008] The middle part of the first connecting rod is rotatably connected to the fixed bracket, and the two ends of the first connecting rod are rotatably connected to the first guardrail and the second guardrail, respectively.

[0009] One end of each of the two second links is rotatably connected to the fixed bracket, and the other end of each of the two second links is rotatably connected to the first guardrail and the second guardrail, respectively.

[0010] The protective device can switch between a first state and a second state as the first link rotates. In the first state, the first guardrail is lowered and the second guardrail is raised; in the second state, the first guardrail is raised and the second guardrail is lowered.

[0011] In at least one possible implementation, the protective device further includes a telescopic device connected to the fixed bracket and the first link respectively, the telescopic movement of which enables the first link to rotate.

[0012] In at least one possible implementation, the telescopic device is one of an electric strut, a pneumatic cylinder, and an electric cylinder.

[0013] The fixed bracket is equipped with a telescopic device control unit to control the telescopic device.

[0014] In at least one possible implementation, the first connecting rod is provided with a counterweight and has an elongated counterweight adjustment hole.

[0015] The counterweight block can slide along the counterweight adjustment elongated hole to make the weight of the first guardrail side and the second guardrail side equal.

[0016] In at least one possible implementation, the fixing bracket includes a connecting rod.

[0017] The connecting rod is T-shaped and includes a vertical rod and a horizontal rod. The horizontal rod extends along the front-rear direction of the protective device, and each end of the horizontal rod forms a second connecting portion to connect two second connecting rods.

[0018] The vertical rod has a first connecting portion for connecting the first connecting rod.

[0019] The second connecting part is higher than the first connecting part.

[0020] In at least one possible implementation, the two ends of the first link are respectively connected to the bottom of the first guardrail and the bottom of the second guardrail.

[0021] The two second links are respectively connected to the upper parts of the first guardrail and the second guardrail.

[0022] In at least one possible implementation, in the first state, the first guardrail is on the ground; in the second state, the second guardrail is on the ground.

[0023] In the second state, the second guardrail is spaced apart from the fixed bracket in the front-rear direction of the protective device, and the first link and the second link form side guardrails on both sides in the width direction.

[0024] In at least one possible implementation, the first guardrail and the second guardrail have the same weight and shape.

[0025] In at least one possible implementation, the protective device further includes a balanced state in which both the first guardrail and the second guardrail are raised, thereby opening both sides of the protective device in the front-rear direction.

[0026] In at least one possible implementation, the protective device further includes a booster spring, the two ends of which are respectively connected to the fixed bracket and the first connecting rod.

[0027] The temporary protective device for platform work areas provided in this application includes a first guardrail and a second guardrail, which can switch between a first state and a second state. This protective device can isolate and protect the temporary work area during temporary work, preventing other workers from accidentally entering the temporary work area. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the first state of the protective device according to one embodiment of this application.

[0029] Figure 2 This is a side view structural diagram of the first state of a protective device according to one embodiment of this application.

[0030] Figure 3 This is a top view of the protective device in a first state according to one embodiment of the present application.

[0031] Figure 4 This is a side view structural diagram of the protective device in its balanced state according to one embodiment of this application.

[0032] Figure 5 This is a side view structural diagram of the second state of the protective device according to one embodiment of this application.

[0033] Figure 6 This is a top view structural diagram of the second state of the protective device according to one embodiment of this application.

[0034] Figure 7 This is a schematic diagram of the structure of the fixing bracket of the protective device according to one embodiment of the present application.

[0035] Figure 8 This is a schematic diagram of the structure of the first link of a protective device according to one embodiment of this application.

[0036] Explanation of reference numerals in the attached figures

[0037] 10 Fixed brackets

[0038] 11 First connecting part

[0039] 12 Second connecting part

[0040] 13. Telescopic device control unit

[0041] 14 Linkage connectors

[0042] 141 Vertical rod

[0043] 142 crossbars

[0044] 20 First guardrail

[0045] 21 First guardrail shock-absorbing pad

[0046] 30 Second guardrail

[0047] 31 Second guardrail shock-absorbing pad

[0048] 40 First Link

[0049] 41 Counterweight

[0050] 42 counterweight adjustment elongated hole

[0051] 50 Second Link

[0052] 60 Telescopic device Detailed Implementation

[0053] Exemplary embodiments of this application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are for teaching those skilled in the art how to implement this application only, and are not intended to exhaustively describe all possible methods of this application, nor to limit the scope of this application.

[0054] The embodiments of this application provide a temporary protective device for a platform operation area (hereinafter, sometimes simply referred to as a "protective device"), such as Figures 1 to 6 As shown, it may include a fixed bracket 10, a first guardrail 20, a second guardrail 30, a first connecting rod 40, a second connecting rod 50, and a telescopic device 60.

[0055] Specifically, such as Figure 1 and Figure 7 As shown, the protective device may include two fixed supports 10, which are respectively arranged in the width direction of the protective device. Figure 1 The fixed bracket 10 can form a first connecting part 11 and a second connecting part 12. The first connecting rod 40 can be rotatably connected to the first connecting part 11 of the fixed bracket 10, and the second connecting rod 50 can be rotatably connected to the second connecting part 12 of the fixed bracket 10. The fixed bracket 10 can be fixedly connected to the ground or the base plate of the work platform, etc.

[0056] The fixed bracket 10 may include a connecting rod 14, which may be T-shaped, meaning the connecting rod 14 includes a vertical rod 141 and a horizontal rod 142. The horizontal rod 142 may run in the front-to-back direction, i.e. Figure 1 Extending in the X direction. Two second connecting portions 12 can be formed at each end of the horizontal bar 142, connecting to two second connecting rods 50 respectively, particularly to the ends of the two second connecting rods 50. A first connecting portion 11 can be formed on the vertical bar 141, connecting to the middle (particularly the center) of the first connecting rod 40. The vertical height of the second connecting portion 12 on the connecting rod connector 14 can be higher than the first connecting portion 11. The connecting rod connector 14 can be disposed on the side of the fixed bracket 10 near the second guardrail 30, that is, disposed in the front-rear direction (…). Figure 1 (In the X direction) the side away from the edge of the platform and close to the temporary work area A of the platform. It is understood that the weight and center of gravity of the structures on both sides of the vertical bar 141 can be the same so that the first guardrail 20 and the second guardrail 30 can be raised at the same time to form a balanced state.

[0057] Furthermore, such as Figure 1 As shown, the first guardrail 20 and the second guardrail 30 can be connected to the first link 40 and the second link 50, respectively. The first guardrail 20 can be rotatably connected to one end of the first link 40 near the edge of the platform and to the second link 50 near the edge of the platform. The second guardrail 30 can be rotatably connected to the other end of the first link 40 and to another second link 50. For example, taking the side of the guardrail that contacts the ground when it falls as the bottom, the two ends of the first link 40 can be connected to the bottom of the first guardrail 20 and the second guardrail 30, respectively, and the two second links 50 can be connected to the upper parts of the first guardrail 20 and the second guardrail 30, respectively.

[0058] The protective device has a first state, a second state, and a balanced state, which can be switched with the rotation of the first link 40 and the second link 50. The first state is as follows: Figure 1 , Figure 2 and Figure 3 As shown, the first guardrail 20 rotates until it contacts the ground (or platform base, etc.), and the second guardrail 30 rotates accordingly until it rises. The second state is as follows. Figure 5 and Figure 6 As shown, the first guardrail 20 rotates to rise, and the second guardrail 30 rotates accordingly until it contacts the ground (or platform base, etc.). The equilibrium state is as follows. Figure 4 As shown, the first link 40 rotates to a horizontal or approximately horizontal position, at which point both the first guardrail 20 and the second guardrail 30 rise.

[0059] It is understandable that during normal platform operation, the protective device can be in its first state, in which case the first guardrail 20 is lowered and together with other guardrails along the platform edge forms a protective guardrail for the platform edge. In the first state, the front-to-back direction of the connecting rod 14 ( Figure 1 The second connecting rods 50 on both sides (in the X direction) can be in an asymmetrical state. At this time, the angle formed by the first guardrail 20 and the connected second connecting rod 50 can be greater than the angle formed by the second guardrail 30 and the connected second connecting rod 50. When temporary operations such as temporary unloading are performed on the platform, the protective device can switch to the second state. In this state, the first guardrail 20 rises, creating a gap in the guardrail at the edge of the platform to allow goods to enter and exit. Simultaneously, the second guardrail 30 falls, forming a side guardrail together with the first connecting rod 40 and the second connecting rod 50 to isolate and protect the temporary work area A. In the second state, the front-to-back direction of the connecting rod connector 14 ( Figure 1 The second connecting rods 50 on both sides (in the X direction) can be in an asymmetrical state. In this case, the angle formed by the first guardrail 20 and its connected second connecting rod 50 can be smaller than the angle formed by the second guardrail 30 and its connected second connecting rod 50. It can be understood that the rotation and deformation that occur during the transformation of the protective device can be a buffered process. During the transformation, the vertical height changes of the first guardrail 20 and the second guardrail 30 can be opposite.

[0060] It is understandable that, in a balanced state, both the first guardrail 20 and the second guardrail 30 are raised, at which point both sides of the protective device in the front and rear directions are open. In a balanced state, the front and rear directions of the connecting rod 14 ( Figure 1 The second connecting rods 50 on both sides (in the X direction) can be in a symmetrical state (symmetrical relative to the connecting rod connector). At this time, the angle formed by the first guardrail 20 and the second connecting rod 50 it connects to can be equal to (or approximately equal to) the angle formed by the second guardrail 30 and the second connecting rod 50 it connects to. When the work platform needs to enter large cargo or requires a larger temporary work area, the protective device can be kept in a balanced state.

[0061] Preferably, the first guardrail 20 and the second guardrail 30 can be rectangular frame structures, that is, they can be formed by combining multiple horizontal members and multiple vertical members. For example, the first guardrail 20 and the second guardrail 30 can be composed of two vertical members and four horizontal members. The weight and shape of the first guardrail 20 and the second guardrail 30 can be the same. Optionally, the cross-sections of the horizontal and vertical members of the fixing bracket 10, the first guardrail 20, and the second guardrail 30 can be circular or square, etc.

[0062] Preferred, such as Figure 4As shown, the bottom of the first guardrail 20 may be provided with a first guardrail shock-absorbing pad 21, and the bottom of the second guardrail 30 may be provided with a second guardrail shock-absorbing pad 31 (with the end of the guardrail that contacts the ground or base plate when it falls as the bottom). The first guardrail shock-absorbing pad 21 and the second guardrail shock-absorbing pad 31 may be rubber shock-absorbing pads.

[0063] Preferred, such as Figure 8 As shown, the first connecting rod 40 may be equipped with a counterweight 41 and form a counterweight adjustment elongated hole 42. The counterweight adjustment elongated hole 42 may be located in the middle of the first connecting rod 40 and extend in the same direction as the first connecting rod 40. The counterweight 41 may slide along the counterweight adjustment elongated hole 42 to adjust the center of gravity of the first connecting rod 40, thereby changing the torque on both sides of the first connecting rod 40. The counterweight 41 may be slidably connected to the first connecting rod 40 using locking bolts or the like. It is understood that since there may be certain errors in the weight, center of gravity, etc. of the actual structure, the weight and center of gravity of the counterweight 41 may be adjusted during the debugging and installation of the protective device to make the weight and center of gravity on both sides (i.e., both sides of the vertical rod 141) of the protective device the same (i.e., symmetrical on both sides) so that the protective device can reach a balanced state. During the debugging and installation process, the counterweight 41 may slide along the counterweight adjustment elongated hole 42. After the debugging and installation are completed, the counterweight 41 may be locked with locking bolts or the like to prevent the counterweight 41 from sliding arbitrarily during normal use of the protective device. Optionally, the first link 40 may also be provided with a locking device to lock the first link when the protective device is in a balanced state, thereby limiting the rotation of the first link 40 relative to the fixed bracket 10.

[0064] The telescopic device 60 can be connected to the fixed bracket 10 and the first connecting rod 40 respectively. The telescopic movement of the telescopic device 60 can cause the first connecting rod 40 to rotate about the first connecting part 11 as an axis, thereby driving the protective device to switch between the first state and the second state. It can be understood that a telescopic device 60 can be provided on each side of the protective device in the width direction (i.e., on the two fixed brackets), or a telescopic device 60 can be provided on only one side.

[0065] Preferably, the telescopic device 60 can be an electric strut, or an automatic telescopic device such as a pneumatic cylinder, electric cylinder, or hydraulic cylinder. It is understood that the telescopic device 60 can be connected to an external power source such as an air pump, hydraulic pump, or motor. The telescopic device 60 can be adapted to the parameters such as stroke and torque required for the transformation of the protective device.

[0066] Preferably, a telescopic device control unit 13 can be provided on the fixed bracket 10, allowing operators to control the telescopic device 60. For example, the telescopic device control unit 13 may include multiple operation buttons, such as a start button and a stop button.

[0067] Optionally, the protective device may not have the telescopic device 60, but instead have a structure such as a booster spring to manually change the state of the protective device. For example, the two ends of the booster spring can be connected to the fixed bracket 10 and the first link 40, respectively.

[0068] It is understood that terms such as "front-back direction" and "width direction" in this application are only used to facilitate understanding when describing the specific structure of the protective device, and do not impose any restrictions on the installation direction of the protective device in actual use.

[0069] The following is a brief description of some of the beneficial effects of the above-described embodiments of this application.

[0070] The temporary protective device for platform work areas provided in this application can include a first guardrail and a second guardrail. The vertical height changes of the first guardrail and the second guardrail can be opposite, allowing the protective device to switch between a first state and a second state. This enables the protective device to provide both normal edge protection and temporary isolation protection for the work area during temporary operations. The protective device can include a telescopic device, particularly an automatic telescopic device such as an electric strut, which makes the operation of the protective device more convenient.

[0071] It is understood that, in this application, when the number of parts or components is not specifically limited, the number can be one or more, where multiple refers to two or more. For cases where the number of parts or components shown in the drawings and / or described in the specification is, for example, two, three, four, etc., this specific number is generally exemplary and not restrictive, and can be understood as multiple, i.e., two or more; however, this does not mean that this application excludes the case of one.

[0072] It should be understood that the above embodiments are merely exemplary and are not intended to limit this application. Those skilled in the art can make various modifications and changes to the above embodiments under the teachings of this application without departing from the scope of this application.

Claims

1. A temporary protective device for a platform work area, characterized in that, It includes a fixed bracket (10), a first guardrail (20), a second guardrail (30), a first connecting rod (40), and a second connecting rod (50). The protective device has a fixed bracket (10), a first connecting rod (40) and two second connecting rods (50) on both sides in the width direction. The middle part of the first connecting rod (40) is rotatably connected to the fixed bracket (10), and the two ends of the first connecting rod (40) are rotatably connected to the first guardrail (20) and the second guardrail (30) respectively. One end of each of the two second links (50) on the same side is rotatably connected to the fixed bracket (10) on the same side, and the other end of each of the two second links (50) is rotatably connected to the first guardrail (20) and the second guardrail (30) respectively. The protective device can switch between a first state and a second state as the first link (40) rotates. In the first state, the first guardrail (20) is lowered and the second guardrail (30) is raised; in the second state, the first guardrail (20) is raised and the second guardrail (30) is lowered. In the first state, the first guardrail (20) is on the ground; in the second state, the second guardrail (30) is on the ground. In the second state, the second guardrail (30) is spaced apart from the fixed bracket (10) in the front-rear direction of the protective device, and the first link (40) and the second link (50) form side guardrails on both sides in the width direction.

2. The temporary protective device for platform operation areas according to claim 1, characterized in that, It also includes a telescopic device (60), which is connected to the fixed bracket (10) and the first connecting rod (40) respectively. The telescopic movement of the telescopic device (60) can cause the first connecting rod (40) to rotate.

3. The temporary protective device for platform operation areas according to claim 2, characterized in that, The telescopic device (60) is one of an electric strut, a pneumatic cylinder, and an electric cylinder. The fixed bracket (10) is provided with a telescopic device control unit (13) to control the telescopic device (60).

4. The temporary protective device for platform operation areas according to claim 1, characterized in that, The first connecting rod (40) is provided with a counterweight (41) and has a counterweight adjustment elongated hole (42). The counterweight (41) can slide along the counterweight adjustment elongated hole (42) to make the weights on the first guardrail (20) side and the second guardrail (30) side equal.

5. The temporary protective device for platform operation areas according to claim 1, characterized in that, The fixed bracket (10) includes a connecting rod (14). The connecting rod connector (14) is "T" shaped. The connecting rod connector (14) includes a vertical rod (141) and a horizontal rod (142). The horizontal rod (142) extends along the front-rear direction of the protective device. Two second connecting parts (12) are formed at both ends of the horizontal rod (142) to connect two second connecting rods (50). The vertical rod (141) has a first connecting portion (11) for connecting the first connecting rod (40). The second connecting part (12) is higher than the first connecting part (11).

6. The temporary protective device for platform operation areas according to claim 1, characterized in that, The two ends of the first connecting rod (40) are respectively connected to the bottom of the first guardrail (20) and the bottom of the second guardrail (30). The two second links (50) are respectively connected to the upper parts of the first guardrail (20) and the second guardrail (30).

7. The temporary protective device for platform operation areas according to claim 1, characterized in that, The first guardrail (20) and the second guardrail (30) have the same weight and shape.

8. The temporary protective device for platform operation areas according to claim 1, characterized in that, The protective device also includes a balanced state in which both the first guardrail (20) and the second guardrail (30) are raised, so that both sides of the protective device are open in the front and rear directions.

9. The temporary protective device for platform operation areas according to claim 1, characterized in that, It also includes a booster spring, the two ends of which are connected to the fixed bracket (10) and the first connecting rod (40), respectively.

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