An anti-falling device for a tool-type cantilever scaffold with a flower basket tie rod

Abstract

The present invention discloses a fall prevention device for a tool-type cantilever scaffold with flower basket tie rods, belonging to the technical field of construction engineering, which comprises a plurality of support units; each support unit includes a support box, a fixing frame and a support frame. In the same support unit, two relatively movable support boxes and a plurality of support frames arranged between the two support boxes cooperate with each other, so that no matter where the stepping empty point of the construction worker is, the two cooperate with each other to avoid the situation that the construction worker loses balance after stepping empty and then collides with the scaffold, thereby ensuring the physical safety of the construction worker.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and particularly relates to a fall prevention device for a tool - type cantilever scaffold with flower basket tie rods. Background Art

[0002] A cantilever scaffold, also known as a cantilevered scaffolding, generally refers to a support and fixing frame suspended and installed on the outer wall of a building, providing a platform for construction workers to stand and work on the outer wall of the building. The cantilever scaffold includes an I - shaped steel frame fixed on the outer circle and a scaffold installed on the I - shaped steel frame. When the distance between two I - shaped steel frames is relatively long, in order to facilitate safe construction, wooden boards are usually placed on the corresponding scaffold to facilitate the walking of construction workers. For a tool - type cantilever scaffold with flower basket tie rods, inclined flower basket tie rods are arranged between the ordinary cantilever scaffold and the outer wall to enhance the connection strength between the cantilever scaffold and the outer wall. Since the flower basket tie rods are inclined between the cantilever scaffold and the outer wall, occupying the placement space of the wooden board, there are major safety hazards at this time. When construction workers move on the scaffold, they may step on air, resulting in their bodies hitting the scaffold and causing harm to the bodies of construction workers. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a fall prevention device for a tool - type cantilever scaffold with flower basket tie rods, so as to solve the technical problem in the prior art that when the distance between two I - shaped steel frames is short, it is not convenient to place wooden boards, and when construction workers move on the scaffold, they may step on air, resulting in their bodies hitting the scaffold and causing harm to the bodies of construction workers.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The present invention provides a fall prevention device for a tool - type cantilever scaffold with flower basket tie rods, including a plurality of support units arranged along the length direction of the I - shaped steel frame; each support unit is located between two adjacent I - shaped steel frames; each support unit includes a pair of support boxes capable of moving relative to the corresponding I - shaped steel frame; the opposite side walls between the support boxes in the same support unit have receiving grooves; a fixing frame capable of extending out of the receiving groove is slidably arranged between the support boxes in the same support unit; a pair of rotating disks are rotatably connected to each fixing frame; a plurality of densely arranged support frames are circularly arranged between each pair of rotating disks; the rotating directions of the two pairs of rotating disks in the same support unit are opposite when the construction worker steps on the support frame, the support frame can transport the construction worker in the direction opposite to the falling direction; when the rotating disk rotates, the support frame is always parallel to the I - shaped steel frame.

[0006] Further, a fixed shaft is rotatably connected between the opposite side walls of the support frame close to the vertical edge; a plurality of telescopic rods are sleeved on the fixed shaft along its axial direction; one end of each telescopic rod away from the side wall of the support frame is axially provided with a suspension groove penetrating through the circumferential side of the telescopic rod; a suspension unit is rotatably connected between the opposite side walls of each suspension groove; the other end of the telescopic rod can be telescopic; when the fixed shaft drives the telescopic rod to rotate to be parallel to the support frame, the suspension unit can be suspended to the horizontal edge of the support frame, and at the same time, the other end of each telescopic rod can extend and be connected to the corresponding telescopic rod on the adjacent support frame, and the turntable stops rotating; the distance between adjacent telescopic rods is greater than the diameter of the ankle, and when the telescopic rod rotates, the adjacent two telescopic rods can limit the ankle.

[0007] Further, the suspension unit includes a plurality of first connection blocks; the first connection block closest to the suspension groove is rotatably connected between the opposite side walls of the suspension groove; a second connection block is arranged between adjacent first connection blocks; both ends of each second connection block are respectively rotatably connected to the adjacent first connection blocks; a plurality of groups of rotation grooves are axially formed in the horizontal edge of the support frame along the length direction of the support frame; each group of rotation grooves is distributed along the height direction of the support frame; a magnetic strip capable of approaching the notch of the rotation groove is rotatably connected in each rotation groove; the magnetic poles at both ends of each magnetic strip are opposite; the magnetic pole of each first connection block is opposite to that of one end of the magnetic strip; when the telescopic rod rotates to be parallel to the support frame, the first connection block closest to the suspension groove rotates, and the first connection block farthest from the suspension groove is sequentially adsorbed to each magnetic strip in the corresponding group one by one and finally adsorbed on the magnetic strip farthest from the suspension groove, and the rotation direction of the first connection block is the same as that of the turntable.

[0008] Further, an elastic groove is formed in each support frame; a buffer plate is slidably arranged in each elastic groove through a spring.

[0009] The beneficial effects of the present invention are as follows:

[0010] 1. When a construction worker steps on air, the body loses balance and falls with the foot that steps on air. The two support boxes between the I-shaped steel frames move relatively until they are spliced together; it takes a certain amount of time for the construction worker to step on air and fall from the scaffolding. The relative movement of the two support boxes enables the foot that steps on air of the construction worker to step on the top side wall of the relatively moving support box that is being spliced, so as to provide a support point for the construction worker.

[0011] 2. Even when the feet of a construction worker fall through the gap between the relatively moving support boxes, when the feet land at the position in the horizontal diameter direction of the rotating disc, the two support frames at this position are in contact with each other. When the feet step on these two support frames, the rotating disc rotates in the opposite direction to the falling direction, thereby indirectly driving the feet to move upward. Since the support frames are always in a state with the center of gravity downward and always in a horizontal state parallel to the I-shaped steel frame, no matter which support frame at the gap the feet step on, the rotation of the rotating disc can drive the feet to move upward, thereby providing an upward auxiliary force to the construction worker and helping the construction worker climb back onto the scaffold.

[0012] 3. The two relatively moving support boxes in the same support unit and the several support frames arranged between the two support boxes cooperate with each other, so that no matter where the stepping empty point of the construction worker is, the two cooperate with each other to avoid the situation where the construction worker loses balance after stepping empty and then collides with the scaffold, thus ensuring the physical safety of the construction worker.

[0013] Other advantages, objectives, and features of the present invention will be described in the subsequent specification, and to some extent, will be obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present invention. The objectives and other advantages of the present invention can be achieved through the following specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] To make the objectives, technical solutions, and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0015] Figure 1 It is a three-dimensional view of the application of the anti-falling device of the present invention;

[0016] Figure 2 It is a three-dimensional view of the support box of the present invention;

[0017] Figure 3 It is a three-dimensional view of the support frame of the present invention;

[0018] Figure 4 It is a three-dimensional view of the telescopic rod of the present invention;

[0019] Figure 5 It is a three-dimensional view of the suspension unit of the present invention;

[0020] Figure 6 For the present invention Figure 3 Local enlarged view of part A in.

[0021] The reference signs in the drawings are as follows: I-shaped steel frame 1, support box 2, fixed frame 3, rotating disc 4, support frame 5, fixed shaft 6, telescopic rod 7, suspension groove 8, first connecting block 9, second connecting block 10, rotating groove 11, magnetic strip 12, buffer plate 13. Detailed implementation mode

[0022] As Figures 1 - 6 shown, the present invention provides a fall prevention device for a tool-type cantilever scaffold of a flower basket tie rod, including a plurality of support units arranged along the length direction of the I-shaped steel frame 1; each support unit is located between two adjacent I-shaped steel frames 1; each support unit includes a pair of support boxes 2 capable of moving relative to the corresponding I-shaped steel frame 1; the opposite side walls between the two support boxes 2 in the same support unit have receiving grooves; a fixing frame 3 capable of extending out of the receiving groove is slidably arranged between the two support boxes 2 in the same support unit; a pair of rotating disks 4 are rotatably connected to each fixing frame 3; a plurality of densely arranged support frames 5 are circularly arrayed between each pair of rotating disks 4; the support frames 5 are rotatably connected between each pair of rotating disks 4 through connecting shafts, and vertical suspension rods (not shown in the figure) are respectively arranged at the four corners of the lower side wall of the support frames 5. When the rotating disks 4 rotate, the support frames 5 are always parallel to the I-shaped steel frame 1, that is, the center of gravity of the support frames 5 is always downward; the rotating directions of the two pairs of rotating disks 4 in the same support unit are opposite when rotating. When a construction worker steps on the support frame 5, the rotating disks 4 rotate, so that the support frame 5 can transport the construction worker in the direction opposite to the falling direction; in the initial state, the two pairs of rotating disks 4 in each support unit are close to each other and in a rotating state, and the fixing frame 3 drives the corresponding rotating disks and the circularly arrayed support frames 5 to be in a state of extending out of the support box 2. When the two pairs of rotating disks 4 in the same support unit rotate to the horizontal diameter direction of the rotating disks 4, the support frames 5 on the two pairs of rotating disks 4 can contact each other.

[0023] Principle and beneficial effects of the above technical solution:

[0024] When a construction worker steps on the air, the body loses balance and follows the foot that steps on the air and falls. The two support boxes 2 located between the I-shaped steel frames 1 move relative to each other until they are spliced together; it takes a certain amount of time for the construction worker to step on the air and fall from the scaffold. The relative movement of the two support boxes 2 enables a foot that steps on the air of the construction worker to step on the top side wall of the relatively moving support box 2, thereby providing a support point for the construction worker.

[0025] In the initial state, the two pairs of rotating disks 4 in each support unit are close to each other and in a rotating state. When the two pairs of rotating disks 4 in the same support unit rotate to the horizontal diameter direction of the rotating disk 4, the respective support frames 5 on the two pairs of rotating disks 4 can come into contact with each other. Even when a construction worker's foot falls through the gap between the relatively moving support boxes 2, when the foot lands at the position in the horizontal diameter direction of the rotating disk 4, the two support frames 5 here are in a state of mutual contact. When the foot steps on these two support frames 5, the rotating disk 4 rotates in the direction opposite to the falling direction, thereby indirectly driving the foot to move upward. Since the support frame 5 is always in a state with its center of gravity facing downward and is always in a horizontal state parallel to the I-beam frame 1, no matter which support frame 5 at the gap the foot steps on, through the rotation of the rotating disk 4, the foot can be driven to move upward, thereby providing an upward auxiliary force to the construction worker and helping the construction worker climb back onto the scaffolding.

[0026] The two relatively moving support boxes 2 in the same support unit and the several support frames 5 arranged between the two support boxes 2 cooperate with each other, so that no matter where the construction worker's stepping empty point is, the two cooperate with each other to avoid the situation where the construction worker loses balance after stepping empty and causes the body to collide with the scaffolding, thereby ensuring the safety of the construction worker's body.

[0027] If a support box 2 that always blocks the gap is directly installed between two I-beams, when the gap between the I-beams needs to be adjusted, the length of the originally adapted support box 2 is insufficient, resulting in a gap still existing between the support box 2 and the I-beams; while in this application, two support boxes 2 are used and relative movement only occurs when stepping empty. Even when the gap between the I-beams needs to be adjusted, they can still be spliced together, thereby avoiding the problem of insufficient distance of a single support box 2.

[0028] In this embodiment, as Figure 3 、 4 shown, a fixed shaft 6 is rotatably connected between the opposite side walls of the support frame 5 close to the vertical edge; a number of telescopic rods 7 are sleeved along the axial direction of the fixed shaft 6; one end of each telescopic rod 7 away from the side wall of the support frame 5 is axially provided with a suspension groove 8 penetrating the circumferential side of the telescopic rod 7; a suspension unit is rotatably connected between the opposite side walls of each suspension groove 8; the other end of the telescopic rod 7 can be telescopic; when the fixed shaft 6 drives the telescopic rod 7 to rotate to be parallel to the support frame 5, the suspension unit can be suspended to the horizontal edge in the length direction of the support frame 5. At the same time, the other end of each telescopic rod 7 can extend and be magnetically connected to the circumferential side of the corresponding telescopic rod 7 on the adjacent support frame 5, and the rotating disk 4 stops rotating; the distance between adjacent telescopic rods 7 is greater than the diameter of the ankle. When the telescopic rod 7 rotates, the adjacent two telescopic rods 7 can limit the ankle.

[0029] The principle and beneficial effects of the above technical solution:

[0030] Since the center of gravity of the support frame 5 always points downward, when the foot steps on the support frame 5, due to inertia, the foot will drive the support frame 5 to rotate around the connecting shaft, resulting in a sprained ankle. To solve this problem, when the foot steps on the support frame 5, the fixed shaft 6 rotates towards the direction close to the foot landing point. When the telescopic rod 7 rotates to be parallel to the support frame 5, since the distance between adjacent telescopic rods 7 is greater than the diameter of the ankle, when the telescopic rod 7 rotates, two adjacent telescopic rods 7 can limit the ankle. At the same time, the telescopic rods 7 at other positions rotate and are suspended to the horizontal edge in the length direction of the support frame 5 through the suspension units in the suspension grooves 8, thus completing the limitation of the instep. When the telescopic rod 7 rotates to be parallel to the support frame 5, the telescopic end at the other end of the telescopic shaft extends out and is magnetically connected to the periphery of the corresponding telescopic rod 7 on the adjacent support frame 5. At this time, the rotation of the support frame 5 around the connecting shaft is restricted. At the same time, the rotating disc 4 can rotate and transport the foot fixed on the support frame 5 upward, so that the foot can be prevented from being sprained while the foot is being transported and moved.

[0031] In this embodiment, as Figures 4 - 6 shown, the suspension unit includes a number of first connecting blocks 9; the first connecting block 9 closest to the suspension groove 8 is rotatably connected between the opposite side walls of the suspension groove 8; a second connecting block 10 is arranged between adjacent first connecting blocks 9; both ends of each second connecting block 10 are respectively rotatably connected to adjacent first connecting blocks 9; a number of groups of rotating grooves 11 are formed in the horizontal edge of the support frame 5 along the length direction of the support frame 5; each group of rotating grooves 11 is distributed along the height direction of the support frame 5; a magnetic strip 12 that can approach the notch of the rotating groove 11 is rotatably connected in each rotating groove 11; the magnetic strip 12 is perpendicular to the length direction of the support frame 5; both ends of each magnetic strip 12 have opposite magnetic poles; the first connecting block 9 has an opposite magnetic pole to one end of the magnetic strip 12; when the telescopic rod 7 rotates to be parallel to the support frame 5, the first connecting block 9 closest to the suspension groove 8 rotates, and the first connecting block 9 farthest from the suspension groove 8 is successively adsorbed to each magnetic strip 12 in the corresponding group one by one and finally adsorbed to the magnetic strip 12 farthest from the suspension groove 8, and the rotation direction of the first connecting block 9 is the same as the rotation direction of the rotating disc 4; the initial state of each magnetic strip 12 is close to the top wall of the corresponding rotating groove 11.

[0032] The principle and beneficial effects of the above technical solution:

[0033] When the fixed shaft 6 rotates towards the direction of the foot to be parallel to the horizontal direction of the support frame 5, the first connecting block 9 closest to the suspension groove 8 rotates in the same direction as the fixed shaft 6 and can turn over from above the instep, thus avoiding hitting the instep. At the same time, the first connecting block 9 farthest from the suspension groove 8 is placed on the side wall of the support frame 5. Since the initial state of each magnetic strip 12 is close to the top wall of the corresponding rotating groove 11, after the first connecting block 9 is adsorbed on the uppermost magnetic strip 12, control the magnetic block to rotate downward, thereby driving the first connecting block 9 to pull downward, so that the first connecting block 9 is adsorbed to the next magnetic strip 12. Under the action of the chain reaction, the suspension unit is in a straightened state. Cooperating with the horizontal telescopic rod 7, it can better limit the foot; when the turntable 4 drives the foot to the highest point, control all the magnetic strips 12 to rotate in the opposite direction, so that the magnetic strips 12 and the first connecting block 9 have the same-named magnetic poles facing each other. After the first connecting block 9 is affected by the magnetic force, it moves away from the side wall of the support frame 5 and rotates in cooperation with the fixed shaft 6 to release the limit on the foot, allowing the construction worker to lift the foot smoothly.

[0034] In this embodiment, as Figure 3 shown, an elastic groove is formed in each support frame 5; a buffer plate 13 is slidably arranged in each elastic groove through a spring.

[0035] The principle and beneficial effects of the above technical solution:

[0036] After the foot steps on the buffer plate 13, the force is relieved and the spring stores energy. When the telescopic rod 7 releases the limit on the foot, the spring releases the energy, thereby providing an upward force to the construction worker to help the construction worker climb back onto the scaffolding.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A fall prevention device for a tool-type cantilever scaffold with a flower basket tie rod, characterized in that: It includes a number of support units arranged along the length direction of the I-shaped steel frame; each support unit is located between two adjacent I-shaped steel frames; each support unit includes a pair of support boxes capable of relative movement from the corresponding I-shaped steel frame; the opposite side walls between the support boxes in the same support unit have accommodation grooves; a fixing frame capable of extending out of the accommodation groove is slidably arranged between the support boxes in the same support unit; a pair of rotating discs is rotatably connected to each fixing frame; a number of densely arranged support frames are circularly arrayed between each pair of rotating discs; the rotating directions of the two pairs of rotating discs in the same support unit are opposite when a construction worker steps on the support frame, the support frame can transport the construction worker in the direction opposite to the falling direction; when the rotating disc rotates, the support frame is always parallel to the I-shaped steel frame.

2. The anti-falling device for the tool-type cantilever scaffold of the flower basket tie rod according to claim 1, characterized in that: A fixing shaft is rotatably connected between the opposite side walls of the support frame close to the vertical edge; a number of telescopic rods are sleeved along the axial direction of the fixing shaft; one end of each telescopic rod away from the side wall of the support frame is axially provided with a suspension groove penetrating through the circumferential side of the telescopic rod; a suspension unit is rotatably connected between the opposite side walls of each suspension groove; the other end of the telescopic rod can be telescopic; when the fixing shaft drives the telescopic rod to rotate to be parallel to the support frame, the suspension unit can be suspended to the horizontal edge of the support frame, and at the same time, the other end of each telescopic rod can extend out and be connected to the corresponding telescopic rod on the adjacent support frame, and the rotating disc stops rotating; the distance between adjacent telescopic rods is greater than the diameter of the ankle, and when the telescopic rod rotates, the two adjacent telescopic rods can limit the ankle.

3. The anti-falling device for the tool-type cantilever scaffold with flower basket tie rods according to claim 2, characterized in that: The suspension unit includes a number of first connecting blocks; the first connecting block closest to the suspension groove is rotatably connected between the opposite side walls of the suspension groove; a second connecting block is arranged between adjacent first connecting blocks; both ends of each second connecting block are rotatably connected to the adjacent first connecting blocks; a number of groups of rotating grooves are axially opened along the length direction of the horizontal edge of the support frame; each group of rotating grooves is distributed along the height direction of the support frame; a magnetic strip capable of approaching the notch of the rotating groove is rotatably connected in each rotating groove; the magnetic poles at both ends of each magnetic strip are opposite; the magnetic pole of each first connecting block is opposite to that of one end of the magnetic strip; when the telescopic rod rotates to be parallel to the support frame, the first connecting block closest to the suspension groove rotates, and the first connecting block farthest from the suspension groove is sequentially adsorbed to each magnetic strip in the corresponding group one by one and finally adsorbed to the magnetic strip farthest from the suspension groove, and the rotating direction of the first connecting block is the same as that of the rotating disc.

4. The anti-falling device for the tool-type cantilever scaffold with flower basket tie rods according to claim 1, characterized in that: An elastic groove is opened in each support frame; a buffer plate is slidably arranged in each elastic groove through a spring.

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