Safety protection device for aerial work platform

Abstract

The utility model discloses a kind of aerial work platform safety protection devices, including work platform, the upper end inboard of work platform is equipped with annular fixed seat, annular track groove is equipped in annular fixed seat, annular track groove outside is equipped with annular slot corresponding to annular fixed seat inboard, connecting seat is equipped on annular slot, connecting seat can slide along the annular trajectory of annular track groove, safety rope is equipped on connecting seat, the safety rope is inelastic rope, the maximum length of safety rope is not greater than the maximum height of work platform, safety hook that can be connected with worker is equipped at the end of safety rope.The utility model has can make worker when in danger can be self-helped or increase the sense of security of worker, avoid worker after falling out of work platform and hang in the air and produce panic feeling, avoid affecting the mental health of worker, while avoid worker in the air large amplitude fluctuation and collision with work platform etc.

Description

Technical Field

[0001] This utility model relates to a safety protection device, specifically a safety protection device for a high-altitude work platform. Background Technology

[0002] Working on an aerial work platform is considered high-altitude work. Aerial work safety ropes are a commonly used type of safety protection equipment for high-altitude work. When working at height, the safety rope is connected to a fixed point at a high location. If a worker falls due to improper operation or other reasons, the safety rope can secure the worker and ensure their personal safety.

[0003] Chinese patent application CN111502317A discloses a high-altitude work safety protection stretching device, which includes a main body of the device. The bottom of the main body of the device is provided with a base frame. Both sides of the top of the base frame are provided with side frames. Multiple sets of support rods are fixed at adjacent ends of the side frames. Multiple sets of connecting components are evenly installed at one end of each support rod. A side plate is provided on the side of the side frame away from the base frame. A fixing block is fixed at the middle position of the side plate away from the side frame.

[0004] In existing technologies, if a worker accidentally falls from a work platform, the safety rope attached to the worker is elastic. During the fall, the worker will be pulled and swayed significantly in the air, which may cause the worker to collide with the work platform, resulting in physical injury and panic. In addition, the safety rope is usually of a certain length and can be stretched even longer. If the worker falls off the work platform, he will be suspended in the air, making it impossible for him to reach the work platform for self-rescue (such as climbing back onto the work platform). He can only wait for other personnel to lower the work platform, which will cause panic among the worker and affect his mental health. Utility Model Content

[0005] The purpose of this utility model is to provide a safety protection device for high-altitude work platforms, which solves the problems of existing technology where workers are unable to save themselves and are prone to panic, affecting their mental health.

[0006] The above-mentioned technical objective of this utility model is mainly achieved through the following technical solution: a safety protection device for a high-altitude work platform, including a work platform, an annular fixed seat provided on the inner side of the upper end of the work platform, an annular track groove provided in the annular fixed seat, an annular slot provided on the outer side of the annular track groove corresponding to the inner side of the annular fixed seat, a connecting seat provided on the annular slot that slides with the annular track groove and the annular slot, the connecting seat being able to slide along the annular track groove, a safety rope provided on the portion of the connecting seat located inside the annular fixed seat, the safety rope being a non-elastic rope, the maximum length of the safety rope not exceeding the maximum height of the work platform, and a safety hook provided at the end of the safety rope for connection with the worker.

[0007] As a further preferred technical solution of this utility model, one end of the connecting seat is located in the annular track groove, and the upper and lower sides of the end are provided with first rollers that cooperate with the annular track groove.

[0008] As a further preferred technical solution of this utility model; one end of the connecting seat is located outside the annular slot and is provided with a connecting block at that end, the middle of the connecting block is provided with a fixing groove, the end of the connecting seat is located in the fixing groove and is rotatably connected to the fixing groove, and both ends of the connecting block are provided with second rollers that abut against the inner wall of the annular fixing seat.

[0009] As a further preferred technical solution of this utility model; the safety hook is provided on the outer wall of the fixing block, and the fixing block is provided with a through hole for the safety rope to pass through, and the safety rope passes through the through hole and extends to the outside of the fixing block.

[0010] As a further preferred technical solution of this utility model; the safety rope end is provided with a movable block, the outer wall of the fixed block is provided with a sliding groove arranged along the axis of the through hole, the side wall of the movable block is provided with a slider that slides with the sliding groove, and a first locking pin threadedly connected to the movable block is provided on the movable block, one end of the first locking pin is located on the outside of the movable block, and the other end of the first locking pin can abut against the bottom of the sliding groove.

[0011] As a further preferred technical solution of this utility model; a second locking pin is threadedly connected to the fixing block through the fixing block, one end of the second locking pin extends into the through hole and the end of the second locking pin is provided with an elastic pad, the side of the through hole opposite to the side where the second locking pin is located is provided with a groove that cooperates with the end of the second locking pin, the other end of the second locking pin is located outside the fixing block and the end of the second locking pin is provided with a slot and a locking piece that cooperates with the slot.

[0012] Therefore, this utility model has the advantages of preventing workers from falling off the work platform and being unable to contact it, allowing workers to maintain contact with the side wall of the work platform in case of danger to facilitate self-rescue or increase workers' sense of security, preventing workers from panicking while suspended in the air after falling off the work platform, avoiding affecting the mental health of workers, and preventing workers from colliding with the work platform due to large-scale ups and downs in the air. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 yes Figure 1 A structural cross-sectional view of the annular fixing seat in the middle;

[0015] Figure 3 yes Figure 1 A cross-sectional view of the safety rope and its two ends in the middle;

[0016] Figure 4 yes Figure 1 A schematic diagram of the structure of the fixed block. Detailed Implementation

[0017] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0018] like Figure 1-2As shown, a safety protection device for an aerial work platform includes a work platform 1. An annular fixing seat 2 is provided on the inner side of the upper end of the work platform 1, encircling the inner side of the work platform 1. Workers walk and work inside the annular fixing seat 2. An annular track groove 21 is provided inside the annular fixing seat 21. An annular slot 211 is provided on the outer side of the annular track groove 21 corresponding to the inner side of the annular fixing seat 211. A connecting seat 22 is provided on the annular slot 211 that slides and engages with the annular track groove 21 and the annular slot 211. The 11 connection guides and limits the connecting seat 22, and adds positioning to the connecting seat 22 to ensure that the connecting seat slides along the annular track groove 21 within the annular track groove 21. It also strengthens the connection structure between the connecting seat 22 and the annular track groove 21 to prevent detachment and increase the tensile strength in case a worker accidentally falls off the work platform. The connecting seat 22 can slide along the annular trajectory of the annular track groove 21. A safety rope 3 is provided on the portion of the connecting seat 22 located inside the annular fixed seat 2, and the end of the safety rope 3 is provided with a safety hook 30 that can be connected to the worker. After the safety rope 3 is connected to the worker via the safety hook 30, the other end of the safety rope 3 is fixedly connected to the connecting seat 22, which serves to protect the worker. When the worker is working, the safety rope 3 can slide along the annular track groove 21 through the connecting seat 22 to get closer to the worker and avoid pulling that would affect the worker's normal work. The safety rope 3 is a non-elastic rope, and its maximum length does not exceed the maximum height of the work platform 1. The safety rope 3 is not elastic to avoid large-scale undulation and swaying due to elasticity when the worker accidentally falls off the work platform, reducing the worker's panic and preventing the worker from colliding with the work platform and getting injured. At the same time, the maximum length of the safety rope 3 ensures that the worker is close to the work platform when he accidentally falls off the work platform and can grab on with his hands for self-rescue or to increase his sense of security. It also minimizes the risk of the worker accidentally falling off the work platform and ensures that the worker can move freely on the work platform to work.

[0019] like Figure 1-3As shown, one end of the connecting seat 22 is located inside the annular track groove 21, and both the upper and lower sides of this end are provided with first rollers 23 that cooperate with the annular track groove 21. The two first rollers 23 are respectively located on the upper and lower sides of the connecting seat 22 and cooperate with the inner wall of the annular track groove 21, so that the first rollers 23 can move along the annular track groove 21 to adjust the position of the safety rope 3. The setting of the annular track groove 21 and the annular slot 22 limits the connection between the connecting seat 22 and the first rollers 23, strengthens the connection between the connecting seat 22 and the annular track groove 21, and prevents the connecting seat 22 from detaching from the annular track groove 21. One end of the connecting seat 22 is located outside the annular slot 211, and this end is provided with a connecting block 24. The middle part of the connecting block 24 is provided with a fixing groove 241. The end of the connecting seat 22 is located inside the fixing groove 241 and is rotatably connected to the fixing groove 241. The connecting seat 22 and the connecting block 24 are rotatably connected, so that the connecting seat 22 can move. When moving to a corner, the angle can be adjusted adaptively to avoid breakage or damage caused by the rigid connection between the connecting block 24 and the connecting seat 22 when turning, thus enhancing adaptability. The setting of the fixing groove 241 can increase the rotation range of the end of the connecting seat 22, which can make way and facilitate connection. Both ends of the connecting block 24 are provided with second rollers 242 that abut against the inner wall of the annular fixing seat 2. The second rollers 242 can cooperate with the first rollers 23 to clamp the connecting seat 22 between the annular slots 211 and support the sliding of the connecting seat 22 and the connecting block 24, thereby enhancing the structural stability between the connecting seat 22 and the connecting block 24. At the same time, the second rollers 242 at both ends of the connecting block 24 can increase the contact area with the inner wall of the annular fixing seat 2, thereby enhancing the connection stability between the connecting block 24 and the connecting seat 22 and the annular fixing seat 2 and ensuring the smoothness of the movement of the connecting seat 22.

[0020] like Figure 3-4As shown, the safety hook 30 is disposed on the outer wall of the fixed block 31. The fixed block 31 has a through hole 311 for the safety rope 3 to pass through. The safety rope 3 passes through the through hole 311. The inner diameter of the through hole 311 is similar to the outer diameter of the safety rope 3. The safety rope 3 extends to the outside of the fixed block 31 through the through hole 311. The end of the safety rope 3 passes through the through hole 311 and connects to the outer wall of the fixed block 31. When the safety hook 30 is connected to the worker, the contact area with the safety rope 3 can be increased through the through hole 31, which strengthens static friction and improves the connection strength with the safety rope. The end of the safety rope 3 is provided with a movable block 32. The outer wall of the fixed block 31 has a sliding groove 312 arranged along the axial direction of the through hole 311. The side wall of the movable block 32 has a slider 321 that slides with the sliding groove 312. The movable block 32 passes through the outer wall of the fixed block 31. The slider 321 is connected to the slide groove 312, so the fixed block 31 can move along the slide groove 312 via the slider 321 to extend or shorten the length of the safety rope 3 within a small range to accommodate workers of different heights and body types. The movable block 32 is provided with a first locking post 33 that is threadedly connected to the movable block 32. One end of the first locking post 33 is located on the outside of the movable block 32, and the other end of the first locking post 33 can abut against the bottom of the slide groove 312. The first locking post 33 can rotate through the threaded connection with the movable block 32 to move closer to or away from the bottom of the slide groove 312, so as to lock or unlock the movable block 32, thereby locking the length of the safety rope 3 and strengthening the connection between the fixed block 31 and the safety rope 3, preventing the safety rope 3 from coming loose from the fixed block 31.

[0021] like Figure 3-4As shown, a second locking pin 34, threadedly connected to the fixing block 31, is threaded through the fixing block 31. One end of the second locking pin 34 extends into the through hole 311, and an elastic pad 340 is provided at this end. A groove 313, which mates with the end of the second locking pin 34, is provided on the side of the through hole 311 opposite to the side where the second locking pin 34 is located. The second locking pin 34 allows the safety rope 3 to be locked onto the fixing block 31 via threads, further strengthening the connection between the fixing block 31 and the safety rope 3 and preventing the safety rope 3 from loosening. The second locking pin 34 can be rotated via threads, causing the end of the second locking pin 34 and its elastic pad 340 to press the safety rope 3 into the groove 313 and deform, enhancing the locking effect on the safety rope 3. The elastic pad 340 can be made of rubber or silicone to increase friction with the safety rope 3, improve connection strength, and reduce... To reduce wear on the safety rope 3 and extend its service life, the other end of the second locking pin 34 is located outside the fixing block 31 and has a slot 341 and a locking piece 342 that cooperates with the slot 341. The locking piece 342 is inserted into the slot 341. During normal use, the locking piece 342 is stored on the work platform, separated from the second locking pin 34, to prevent workers or others from accidentally touching it and causing the second locking pin 34 to loosen from the safety rope 3, which would cause the safety rope 3 to detach under tension and break in case of danger. At the same time, when workers need to adjust the length of the safety rope, they can take the locking piece 342 and insert it into the slot to rotate the second locking pin 34, loosen the safety rope 3, and loosen the first locking pin 33 to adjust the length of the safety rope 3, achieving double locking of the safety lock, making it safer to use and giving workers more peace of mind.

[0022] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A safety guard for an aerial work platform, comprising a work platform (1), characterized in that: The upper inner side of the working platform (1) is provided with an annular fixed seat (2), and the annular fixed seat (2) is provided with an annular track groove (21). The outer side of the annular track groove (21) is provided with an annular slot (211) corresponding to the inner side of the annular fixed seat (2). The annular slot (211) is provided with a connecting seat (22) that slides with the annular track groove (21) and the annular slot (211). The connecting seat (22) can slide along the annular track groove (21). The part of the connecting seat (22) located inside the annular fixed seat (2) is provided with a safety rope (3). The safety rope (3) is a non-elastic rope. The maximum length of the safety rope (3) is not greater than the maximum height of the working platform (1). The end of the safety rope (3) is provided with a safety hook (30) that can be connected to the worker.

2. The aerial work platform safety shield of claim 1, wherein: One end of the connecting seat (22) is located in the annular track groove (21), and the upper and lower sides of this end are provided with first rollers (23) that cooperate with the annular track groove (21).

3. The aerial work platform safety shield according to claim 1 or 2, characterized in that: One end of the connecting seat (22) is located outside the annular slot (211) and is provided with a connecting block (24). The middle part of the connecting block (24) is provided with a fixing groove (241). The end of the connecting seat (22) is located inside the fixing groove (241) and is rotatably connected to the fixing groove (241). Both ends of the connecting block (24) are provided with second rollers (242) that abut against the inner wall of the annular fixing seat (2).

4. The aerial work platform safety shield of claim 1, wherein: The safety hook (30) is provided on the outer wall of the fixing block (31). The fixing block (31) has a through hole (311) for the safety rope (3) to pass through. The safety rope (3) passes through the through hole (311) and extends to the outside of the fixing block (31).

5. The aerial work platform safety shield of claim 4, wherein: The safety rope (3) has a movable block (32) at its end. The outer wall of the fixed block (31) has a sliding groove (312) arranged along the axial direction of the through hole (311). The side wall of the movable block (32) has a slider (321) that slides with the sliding groove (312). The movable block (32) has a first locking post (33) threadedly connected to the movable block (32). One end of the first locking post (33) is located on the outside of the movable block (32), and the other end of the first locking post (33) can abut against the bottom of the sliding groove (312).

6. The aerial work platform safety shield of claim 4, wherein: The fixing block (31) is provided with a second locking post (34) threadedly connected to the fixing block (31). One end of the second locking post (34) extends into the through hole (311) and the end is provided with an elastic pad (340). The through hole (311) is provided with a groove (313) that mates with the end of the second locking post (34) on the side opposite to the side where the second locking post (34) is located. The other end of the second locking post (34) is located outside the fixing block (31) and the end is provided with a slot (341) and a locking piece (342) that mates with the slot (341).

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