Scaffold end guardrail

Abstract

The invention relates to the technical field of scaffold guardrails, in particular to a scaffold end guardrail which comprises supporting columns and mounting discs welded to the supporting columns, a transverse bearing column and a guardrail base body are arranged between the two end supporting columns, a longitudinal bearing column is arranged between the two side supporting columns, a first hanging piece is connected to the transverse bearing column in a clamped mode, and a second hanging piece is connected to the guardrail base body in a clamped mode. A pedal is welded on the first hanging piece; the bearing assembly comprises an end supporting module, a reinforcing module and a corner supporting module, the reinforcing module comprises a positioning piece fixedly installed on the guardrail base body and a reinforcing rod movably installed on the positioning piece, and a second hanging piece is fixedly installed at the top of the reinforcing rod; through the bearing assembly, the pedal can be fastened through the first fastening piece, the stability of the pedal is improved, the end of the guardrail base body is reinforced through the protruding block, the corner of the guardrail base body can be supported in cooperation with the bearing piece, and then the stability and the bearing performance of the guardrail base body are improved.

Description

Technical Field

[0001] This invention relates to the field of scaffolding guardrail technology, specifically to a scaffolding end guardrail. Background Technology

[0002] Scaffolding is a high-altitude work platform used in construction projects to support workers and materials. It is mainly composed of components such as uprights, horizontal bars, diagonal braces, bases, and protective facilities. Common scaffolding is used on construction sites for exterior walls or interior decoration, in places where the floor height is too high for direct construction.

[0003] Among them, scaffolding used for interior decoration is often two or three layers of treadle scaffolding. In order to improve safety during construction, guardrails are usually installed at the ends of the scaffolding. However, in order to facilitate the combination and operation of scaffolding and to cooperate with ladders to climb up and down the scaffolding, there are often large gaps between the guardrails and the uprights, which greatly reduces safety. On the other hand, in actual construction, in order to facilitate the movement of scaffolding and save time, workers often do not carry ladders and directly climb the scaffolding using the guardrails. However, the guardrails are fixed to the uprights and have low load-bearing capacity, which also poses certain safety hazards. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a scaffolding end guardrail, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a scaffold end guardrail, including a support column and a mounting plate welded to the support column, a transverse bearing column and a guardrail base are provided between the two end supports, a longitudinal bearing column is provided between the two side supports, a first hanging piece is snapped onto the transverse bearing column, and a footboard is welded onto the first hanging piece;

[0006] It also includes load-bearing components, including an end support module, a reinforcement module and a corner support module. The reinforcement module includes a positioning component fixedly installed on the guardrail base and a reinforcement rod movably installed with the positioning component. A second hanger is fixedly installed on the top of the reinforcement rod and a protrusion is fixedly installed on the reinforcement rod.

[0007] Preferably, the reinforcement module includes a groove formed on the reinforcement rod and a slider movably mounted on the groove. One end of the slider is fixedly mounted with a first fastener, and the first fastener is located between two adjacent first hangers.

[0008] Preferably, the corner support module includes load-bearing components that are rotatably connected to both sides of the reinforcing rod via torsion springs, and the outer surfaces of both ends of the load-bearing components are provided with metal buffer membranes.

[0009] Preferably, a second stud is fixedly installed on the first fastener, and the second stud passes through the slide groove and extends to the other side of the slide groove, and a second nut is threadedly connected to the outer surface of the second stud.

[0010] Preferably, the upper half of the first fastener is flat and the lower half is hollow and pointed.

[0011] Preferably, the upper half of the first fastener has a mounting groove, a foot bar is provided in the mounting groove, a second fastener is fixedly installed on the foot bar, and the second fastener is located between two adjacent foot pedals.

[0012] Preferably, a first positioning wheel is movably mounted on the outer side of the first fastener, and a second positioning wheel is fixedly mounted on the shaft of the first positioning wheel, with the second positioning wheel located in the mounting groove.

[0013] Preferably, the first positioning wheel and the second positioning wheel are semi-circular, the arc-shaped ends of the first positioning wheel and the second positioning wheel face opposite directions, and the surface of the arc-shaped ends is provided with rubber pads.

[0014] Preferably, a support foot is movably mounted on one end of the foot bar, an adjustment groove is provided on the surface of the support foot, and a third stud is provided in the adjustment groove. A third nut is threadedly connected to the outer surface of the third stud, and a screw hole adapted to the third stud is provided on the mounting groove.

[0015] Preferably, the support foot is bent and wider at the top than at the bottom, with the bottom of the support foot in contact with the surface of the first hanging piece.

[0016] In the above technical solution, the beneficial effects of the present invention are: the load-bearing component enables the first fastener to tighten the pedal, thereby improving its stability, and enables the protrusion to reinforce the end of the guardrail base. In conjunction with the load-bearing component, it can support the corner of the guardrail base, thereby improving the stability and load-bearing performance of the guardrail base.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0018] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0022] Figure 4 This is a three-dimensional exploded view of the connection between the mounting plate and the angle iron of the present invention;

[0023] Figure 5 This is a schematic diagram showing the positional relationship between the guardrail base and the load-bearing components of the present invention;

[0024] Figure 6 This is a schematic diagram showing the positional relationship between the first positioning wheel and the reinforcing rod, and the second positioning wheel and the pedal of the present invention.

[0025] Figure 7 This is a three-dimensional exploded view of the reinforcing bar and the first fastener of the present invention;

[0026] Figure 8 This is a three-dimensional exploded view of the first fastener and the pedal of the present invention.

[0027] In the diagram: 1. Support column; 11. Mounting plate; 12. Horizontal support column; 13. Longitudinal support column; 14. First hanger; 15. Clip; 16. Card; 17. Pedal; 18. Caster wheel; 19. Stop bar; 2. Guardrail base; 21. Angle iron; 22. First stud; 23. First nut; 24. Positioning component; 25. Reinforcing bar; 26. Second hanger; 27. Protrusion; 28. Slide groove; 29. ​​Slider; 210. First fastener; 211. Load-bearing component; 212. Second stud; 213. Second nut; 3. Mounting groove; 31. Step bar; 32. Second fastener; 33. First positioning wheel; 34. Second positioning wheel; 35. Limit bolt; 4. Support foot; 41. Adjustment groove; 42. Third stud; 43. Third nut; 44. Screw hole. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Example 1: Please refer to Figures 1 to 5 The present invention provides a technical solution: a scaffold end guardrail, including a support column 1 and an mounting plate 11 welded to the support column 1, a transverse bearing column 12 and a guardrail base 2 are provided between two end support columns 1, a longitudinal bearing column 13 is provided between two side support columns 1, a first hanging piece 14 is snapped onto the transverse bearing column 12, and a footboard 17 is welded onto the first hanging piece 14.

[0030] It also includes load-bearing components, including end support modules, reinforcement modules and corner support modules. The reinforcement module includes a positioning member 24 fixedly installed on the guardrail base 2, and a reinforcement rod 25 movably installed with the positioning member 24. A second hanging member 26 is fixedly installed on the top of the reinforcement rod 25, and a protrusion 27 is fixedly installed on the reinforcement rod 25.

[0031] The reinforcement module includes a groove 28 formed on the reinforcement rod 25 and a slider 29 movably mounted on the groove 28. One end of the slider 29 is fixedly mounted with a first fastener 210, and the first fastener 210 is located between two adjacent first hangers 14.

[0032] The corner support module includes load-bearing components 211 that are rotatably connected to both sides of the reinforcing rod 25 via torsion springs. Metal buffer membranes are provided on the outer surfaces of both ends of the load-bearing components 211.

[0033] A second stud 212 is fixedly installed on the first fastener 210, and the second stud 212 passes through the slide groove 28 and extends to the other side of the slide groove 28. A second nut 213 is threadedly connected to the outer surface of the second stud 212.

[0034] Specifically, both ends of the transverse support column 12 and the longitudinal support column 13 are welded with clamps 15. A wedge-shaped groove is formed in the middle of the clamp 15, into which a card 16 with the same wedge-shaped cross-section is inserted. The width of the card 16 matches the width of the slot on the mounting plate 11. During assembly, the clamp 15 can be aligned with the corresponding slot on the mounting plate 11, and then the card 16 can be inserted into the clamp 15 and pass through the mounting plate 11. It can then be tightened with a hammer. A slanted groove is formed at the upper end of the card 16 to facilitate removal during later disassembly. Angle iron 21 also has clamps 15. However, to facilitate misaligned installation with the transverse support column 12, a first stud 22 is fixedly installed at the end of the clamp 15 on the angle iron 21. A first nut 23 is threaded onto the outer surface of the first stud 22 to fix the clamp 15 to the angle iron 21. Then, the angle iron 21 is fixed to the mounting plate 11 using the card 16, thus completing the installation of the guardrail base 2. After the basic structure of the support column 1, the horizontal support column 12 and the longitudinal support column 13 is assembled, the tread plate 17 is installed on the horizontal support column 12 using the first hanger 14, thus completing the installation of the scaffold base. Among them, the adjacent tread plates 17 are in contact with each other after installation, and there is a gap between the adjacent first hangers 14, that is, the width of the first hanger 14 is smaller than the width of the tread plate 17. On the one hand, the overall weight is reduced, and on the other hand, the gap facilitates the installation of the first hanger 14. The support column 1 is also fixedly installed with the clip head 15 and the card 16 to enhance the overall structural stability of the scaffold. Diagonal bracing can also be used here. The bottom of the support column 1 is equipped with casters 18 for moving the scaffold.

[0035] During the assembly process, when one side of the guardrail base 2 is installed, the reinforcing bar 25 needs to be suspended on the transverse bearing column 12 and placed inside the positioning member 24. Then, the other guardrail base 2 is fixed so that the two positioning members 24 limit the reinforcing bar 25. After the limit is set, the positioning member 24 is placed between the protrusions 27. On the one hand, the mutual interference between the protrusions 27 and the positioning member 24 can be used to position the reinforcing bar 25. On the other hand, when workers climb over the guardrail base 2, the end of the guardrail base 2 is supported by the protrusions 27, which can improve the load-bearing capacity of the guardrail base 2.

[0036] Furthermore, in traditional systems, the pedal 17 is evenly spaced from two adjacent longitudinal support columns 13 after assembly, thus preventing the pedal 17 from wobbling. However, with prolonged use at the construction site, the pedal 17 is prone to deformation, leading to displacement between the pedals and causing workers to lose their balance. In this invention, after the reinforcing bar 25 is positioned, the fastener 210 is pulled down to be positioned between two adjacent first hangers 14, and the first hangers 14 on both sides are squeezed together. Then, the second nut 213 is tightened to fix the fastener 210, thereby making the pedals 17 in close contact and improving stability. It should be noted that the width of the second nut 213 is greater than the width of the groove 28, so that when it is tightened, it can contact the surface of the reinforcing bar 25 to complete the fixation of the fastener 210.

[0037] Furthermore, when the fastener 210 is pulled down, the slider 29 also moves down. As the slider 29 moves down, it drives one end of the load-bearing component 211, thereby driving the other end of the load-bearing component 211 and causing it to tilt upwards. This provides support to the corner below the guardrail base 2, further improving the load-bearing capacity of the guardrail base 2, as shown in the attached instruction manual. Figure 2 As shown at point a; preferably, the load-bearing component 211 is connected by a torsion spring. When the load-bearing component 211 is not driven, its end is in a horizontal state, which is convenient for the slider 29 to drive. This can avoid the weight of the load-bearing component 211 from affecting its initial state, and at the same time facilitates automatic reset when disassembling.

[0038] Example 2: Please refer to Figures 5 to 8 The upper half of the first fastener 210 is flat, and the lower half is hollow and pointed.

[0039] The upper half of the first fastener 210 has a mounting groove 3, a foot bar 31 is provided in the mounting groove 3, and a second fastener 32 is fixedly installed on the foot bar 31, and the second fastener 32 is located between two adjacent foot pedals 17.

[0040] A first positioning wheel 33 is movably mounted on the outer side of the first fastener 210. A second positioning wheel 34 is fixedly mounted on the shaft of the first positioning wheel 33, and the second positioning wheel 34 is located in the mounting groove 3.

[0041] The first positioning wheel 33 and the second positioning wheel 34 are semi-circular, with the arc-shaped ends of the first positioning wheel 33 and the second positioning wheel 34 facing opposite directions, and rubber pads are provided on the surface of the arc-shaped ends.

[0042] One end of the foot bar 31 is movably mounted with a support foot 4. The surface of the support foot 4 is provided with an adjustment groove 41, and a third stud 42 is provided in the adjustment groove 41. A third nut 43 is threadedly connected to the outer surface of the third stud 42. A screw hole 44 adapted to the third stud 42 is provided on the mounting groove 3.

[0043] The support leg 4 is bent and wider at the top than at the bottom, with the bottom of the support leg 4 in contact with the surface of the first hanging piece 14.

[0044] Based on Example 1, after the first fastener 210 is installed, the two pedals 31 are installed into the mounting slot 3. At this time, the second fastener 32 is located between adjacent pedals 17 that are not fastened by the first fastener 210. In this way, on the one hand, all pedals 17 can be fastened, further improving the stability of the pedals 17. On the other hand, when the pedals 17 are fastened only by the first fastener 210, due to the deformation of the edges of the pedals 17, the edges of other adjacent pedals 17 that are no longer flat due to deformation are squeezed against each other, which can easily cause them to warp upwards or downwards. Due to the presence of the second fastener 32, when the first fastener 210 is fastened, there is no need to press down excessively, avoiding warping. When the second fastener 32 is installed later, the second fastener 32 can assist the first fastener 210 in fastening all pedals 17 and limit their movement, thereby preventing the problem of warping.

[0045] During the installation of the footrest 31, the initial positions of the first positioning wheel 33 and the second positioning wheel 34 are reversed compared to their post-installation positions. That is, before installation, the arc-shaped end of the first positioning wheel 33 faces downwards, and the arc-shaped end of the second positioning wheel 34 faces upwards, providing a position for the footrest 31. After the footrest 31 is installed, the first positioning wheel 33 is rotated so that its arc-shaped end faces upwards and abuts against the bottom of the reinforcing bar 25. During climbing, the load-bearing component 211 supports the corner of the guardrail base 2. At this time, the end of the load-bearing component 211 in contact with the guardrail base 2 receives force and transmits it to the end of the slider 29 in contact, thus transmitting the force to the slider 29. The slider 29 is fixed by the friction between the second nut 213 and the surface of the reinforcing bar 25. When the transmitted force is greater than the frictional force, the second nut 213 is prone to loosening, causing the first fastener 210 to move upwards, resulting in instability in the fastening operation between the first fastener 210 and the second fastener 32. However, after the first positioning wheel 33 is pressed against the bottom of the reinforcing rod 25, the first positioning wheel 33 can limit the first fastener 210 and share the force with the second nut 213 when the load-bearing component 211 transmits the force to the slider 29, thereby improving the stability of the first fastener 210. When the first positioning wheel 33 rotates, it will drive the second positioning wheel 34 to rotate, so that the arc end of the second positioning wheel 34 faces downwards, thereby fixing the pedal 31, so that the pedal 31 completes the operation of fastening the pedal 17, as shown in the instruction manual. Figure 6 As shown at point b, the surface of the first positioning wheel 33 is also provided with a threaded connection to a limiting bolt 35. By tightening the limiting bolt 35, it is brought into close contact with the first fastener 210. The friction between the limiting bolt 35 and the first fastener 210 can limit the first positioning wheel 33.

[0046] Furthermore, during climbing, when the worker steps on the end of the foot bar 31 away from the second positioning wheel 34, the second positioning wheel 34 is subjected to greater force. By installing a support foot 4 at the end of the foot bar 31, the end of the foot bar 31 can be supported, improving its stability. On the other hand, the support foot 4 can be used to position the pedal 17 adjacent to the longitudinal support column 13, preventing the pedal 17 from lifting due to compression during the fastening process. It should be noted that because different pedals 17 may have different degrees of deformation, the distance between adjacent pedals 17 will be different. Therefore, the height of the first fastener 210 and the second fastener 32 after installation will also be slightly different. Therefore, when setting the support foot 4, an adjustment groove 41 can be set on the support foot 4, and deformable rubber pads can be set at the arc-shaped ends of the first positioning wheel 33 and the second positioning wheel 34 to adapt to the height changes of the first fastener 210 and the second fastener 32.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A scaffolding end guardrail, comprising a support column (1) and a mounting plate (11) welded to the support column (1), characterized in that: A transverse support column (12) and a guardrail base (2) are provided between the two end support columns (1), and a longitudinal support column (13) is provided between the two side support columns (1). A first hanger (14) is snapped onto the transverse support column (12), and a footboard (17) is welded onto the first hanger (14). It also includes load-bearing components, including end support modules, reinforcement modules and corner support modules. The reinforcement module includes a positioning component (24) fixedly installed on the guardrail base (2) and a reinforcement rod (25) movably installed with the positioning component (24). A second hanger (26) is fixedly installed on the top of the reinforcement rod (25) and a protrusion (27) is fixedly installed on the reinforcement rod (25).

2. A scaffolding end guardrail according to claim 1, characterized in that: The reinforcement module includes a groove (28) formed on the reinforcement rod (25) and a slider (29) movably mounted on the groove (28). One end of the slider (29) is fixedly mounted with a first fastener (210), and the first fastener (210) is located between two adjacent first hangers (14).

3. A scaffolding end guardrail according to claim 1, characterized in that: The corner support module includes load-bearing components (211) that are rotatably connected to both sides of the reinforcing bar (25) by torsion springs. The outer surfaces of both ends of the load-bearing components (211) are provided with metal buffer membranes.

4. A scaffolding end guardrail according to claim 2, characterized in that: A second stud (212) is fixedly installed on the first fastener (210), and the second stud (212) passes through the slide groove (28) and extends to the other side of the slide groove (28). A second nut (213) is threaded on the outer surface of the second stud (212).

5. A scaffolding end guardrail according to claim 2, characterized in that: The upper half of the first fastener (210) is flat, and the lower half is hollow and pointed.

6. A scaffolding end guardrail according to claim 2, characterized in that: The upper half of the first fastener (210) is provided with a mounting groove (3), a foot bar (31) is provided in the mounting groove (3), a second fastener (32) is fixedly installed on the foot bar (31), and the second fastener (32) is located between two adjacent pedals (17).

7. A scaffolding end guardrail according to claim 6, characterized in that: A first positioning wheel (33) is movably mounted on the outside of the first fastener (210), and a second positioning wheel (34) is fixedly mounted on the shaft of the first positioning wheel (33), and the second positioning wheel (34) is located in the mounting groove (3).

8. A scaffolding end guardrail according to claim 7, characterized in that: The first positioning wheel (33) and the second positioning wheel (34) are semi-circular. The arc ends of the first positioning wheel (33) and the second positioning wheel (34) face opposite directions, and the surface of the arc ends is provided with rubber pads.

9. A scaffolding end guardrail according to claim 6, characterized in that: One end of the foot bar (31) is movably mounted with a support foot (4). The surface of the support foot (4) is provided with an adjustment groove (41), and a third stud (42) is provided in the adjustment groove (41). A third nut (43) is threadedly connected to the outer surface of the third stud (42). A screw hole (44) adapted to the third stud (42) is provided on the mounting groove (3).

10. A scaffolding end guardrail according to claim 9, characterized in that: The support foot (4) is bent and wider at the top than at the bottom. The bottom of the support foot (4) is in contact with the surface of the first hanging piece (14).

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