CN211229470U - Multi-point suspension scaffold - Google Patents

Abstract

The utility model discloses a multi-point suspension scaffold, which comprises a first frame and a second frame; the first frame and the second frame are both provided with a suspension steel cable and a winch; a pedal and a net rack are arranged between the first frame and the second frame; the pedal is divided into an upper pedal and a lower pedal; the upper pedal and the lower pedal are parallel to each other and have different vertical heights; the corresponding control of the winch is arranged on the first frame and the second frame; one end of the suspension steel cable is provided with a steel cable ring; the steel cable ring is hung on the supporting leg beam; the supporting leg beam is arranged on a building; the net rack comprises a guardrail and a kickplate. The utility model discloses optimize the erection joint mode of current scaffold frame, provide a multiple spot and hang scaffold frame for enough distance and stability have between scaffold frame and the building that hangs, and install and dismantle all sufficient convenience.

Description

Multi-point suspension scaffold

Technical Field

The utility model relates to a construction equipment field specifically is a multiple spot hangs scaffold frame.

Background

The scaffold is various supports erected for workers to operate and work at a high place on a construction site, is a general term in the field of buildings, and is mainly used on an outer wall, interior decoration or a place with a higher floor height and incapable of being directly constructed on the construction site. The scaffold manufacturing material is usually bamboo, wood, steel pipe or synthetic material; at present, scaffolds are also used as templates in part of projects, and are also widely used in the fields of advertising industry, municipal administration, traffic roads and bridges, mines and the like. Returning to the field of construction, the existing scaffold is mainly erected by adopting steel pipes, connecting clamping pieces and other components according to a preset specification, a required fixing structure cannot be temporarily additionally arranged on the existing scaffold in the erecting process, and steel pipes with different specifications are required to be used for different parts of the scaffold, so that the scaffold is more in material types, the scaffold is complex in structure, too much labor is required to be consumed in the assembling and disassembling processes, and the labor intensity is high for a single constructor; meanwhile, the consistency of the connecting structures at different parts of the frame body is low during assembly, so that the uncertainty caused by human factors in the assembly process is increased, and the frame body is easy to have a plurality of potential safety hazards;

SUMMERY OF THE UTILITY MODEL

The utility model provides a to the problem that above-mentioned prior art exists, provide a multiple spot hanging scaffold.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a multipoint suspension scaffolding comprising:

a first frame;

a second frame;

the first frame and the second frame are both provided with a suspension steel cable and a winch; a pedal and a net rack are arranged between the first frame and the second frame; the pedal is divided into an upper pedal and a lower pedal; the upper pedal and the lower pedal are parallel to each other and have different vertical heights;

the corresponding control of the winch is arranged on the first frame and the second frame; one end of the suspension steel cable is provided with a steel cable ring; the steel cable ring is hung on the supporting leg beam; the supporting leg beam is arranged on a building;

the net rack comprises a guardrail and a kickplate.

Preferably, the first frame and the second frame each comprise an upper scaffolding frame and a lower scaffolding frame.

Preferably, a first pedal, a second pedal and a third pedal which are adjacent to each other are arranged between the lower scaffold frames; the third pedal, the first pedal and the second pedal are parallel to each other and have different vertical heights.

Preferably, an upper cross beam and a lower cross beam are connected between the first frame and the second frame; the upper cross beam and the lower cross beam are parallel to each other and are crosswise arranged through a pivot.

Preferably, the first frame and the second frame are composed of hollow metal tubes, and the hollow metal tubes are parallel or perpendicular to each other.

Preferably, the net mount comprises vertical legs connected to the wire and a kickplate located below the wire.

Preferably, the vertical legs are provided on their surfaces with hooking lugs which couple the net mount to the first frame and/or the second frame.

The utility model discloses optimize the erection joint mode of current scaffold frame, provide a multiple spot and hang scaffold frame for enough distance and stability have between scaffold frame and the building that hangs, and install and dismantle all sufficient convenience.

Drawings

Fig. 1 is a schematic structural view of the present invention with the bottom plate removed;

FIG. 2 is a schematic structural view of the utility model after the installation of the bottom plate;

FIG. 3 is a side view of FIG. 1;

FIG. 4 is a front view of FIG. 1;

fig. 5 is a schematic structural view of the lower screen plate truss of the present invention;

fig. 6 is a schematic structural view of the upper screen truss of the present invention;

FIG. 7 is a partial cross-sectional view taken along line 7 of FIG. 4;

FIG. 8 is a perspective view of the drop lock assembly in the open position;

FIG. 9 is a perspective view of the drop lock assembly in the closed position;

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The whole scaffold 10 of the present invention can be used alone as shown in fig. 1, or in combination of a plurality of scaffolds. For the purpose of facilitating the explanation of the structure thereof, the present invention will be explained only as a specific embodiment when used alone.

As shown in fig. 1-9, the present invention is composed of two substantially identical frames 12, wherein the two frames 12 are connected to each other by an upper rack 14 and a lower rack 16, which are made of metal material and located at the upper part or the top, and an upper cross member 18 and a lower cross member 20; referring to fig. 2, an upper foot board 22 and a similar lower foot board 24 are also interconnected with the two frames 12 to form a complete scaffold 10.

A pair of winches 26 are provided in each frame 12; each winch 26 is connected to its own frame 12. Each winch 26 carries a length of suspension wire rope 28; the suspension wire 28 terminates in a steel grommet 30 at the upper end; the steel grommet 30 is suspended in the leg beam 32. As shown in fig. 3, the inboard end 34 of each leg beam 32 is pivotally supported on a building 36.

In use, the leg beams 32 spaced at fixed intervals along the roof 38 of the building 36 are deployed by sliding or pivoting outwardly. The suspension wires 28 are unwound from the respective winches 26 to provide sufficient cable ends to provide sufficient wire slack so that the steel grommets 30 can slide around the leg beams 32. Typically, the leg beams 32 are i-beams, but other configurations may be used that meet the relevant specifications for the construction site. A plurality of steel grommets 30 are suspended from one of the leg beams 32 so that the scaffold 10 supports the wall 40 of the column building 36 near but not in contact with it.

As shown in fig. 1-4, the wire loop 30 is generally comprised of a flat metal strip or band 42 that has been formed into a pentagonal shape and has a pair of free ends 44; each free end 44 is provided with a hole 46. The holes 46 on the two free ends 44 are aligned with each other so that the metal strip 42 can accommodate the oval connector 48; the oval connector 48 will in turn grip the cable hole 50 of the suspension cable 28; the use of flat metal straps 42 to form the steel grommet 30 enables the surface of the steel grommet 30 to bond with the flat surface of the leg beam 32, reducing the stress concentration of the steel grommet 30.

Each frame 12 is divided into two sections, an upper scaffold frame 52 and a lower scaffold frame 54; the frame 12 is preferably made of metal. The upper scaffolding frame 52 and the lower scaffolding frame 54 are detachably connected to each other by screw bolts, studs, or the like.

The upper scaffolding frame 52 is generally rectangular in shape and comprises four sections including an upper vertical tube 60, an upper vertical tube 62, an upper horizontal tube 64, and a lower horizontal tube 66; the cross section of the four parts of the pipe is generally circular and is made of steel; four parts of an upper vertical pipe 60, an upper vertical pipe 62, an upper horizontal pipe 64 and a lower horizontal pipe 66 are fixedly connected with each other by welding, as shown in fig. 1 and 2.

As shown in FIG. 3, the top extension tube 68 is bolted or pinned to the bolted connector 56 and removably attached to the inside end 70 of the upper horizontal tube 64. The pin 74 is welded in this inner section 70. Upper horizontal tube 64 has a free end 76 that extends beyond pin 74.

The upper stop plate 80 is attached to a frame pickup plate 82 of the inner section of the top extension tube 68 in the upper scaffolding frame 52. The upper baffle 80 is used as a stopper in the present invention.

A pair of spaced apart frame pickup plates 82 are bolted or otherwise secured to the upper vertical tubes 60 and 62 and pass through frame plate pins 84. The frame plate pin 84 may be removed in a pair of spaced apart frame pickup plates 82, the frame plate pin 84 being used to form an attachment joint for the winch 26, the winch 26 being connected to each of the upper vertical tubes 60, 62. This arrangement allows the winch 26 to have a suitable connection 86 with the frame plate pin 84 passing through the connection 86. The winch 26 may be separated from a pair of spaced apart frame pickup plates 82 by removing the frame plate pins 84.

Each winch 26 carries a length of suspended wire rope 28 extending between the winch 26 and a wire rope loop 30. These suspension cables 28 each pass through a cable sleeve 88 at the upper end, the cable sleeves 88 stabilizing the frame 12 in the respective suspension cables 28.

The lower scaffold frame 54 is also generally rectangular, consisting of an outer vertical tube 90, an inner vertical tube 92, an upper horizontal tube 94, and a lower horizontal tube 96; similar to the upper scaffolding frame 52, the outer vertical pipe 90, the inner vertical pipe 92, the upper horizontal pipe 94, and the lower horizontal pipe 96 are all made of steel pipes having a circular cross section and are welded and fixed to each other.

The outer and inner vertical tubes 90, 92 have upper and lower ends 98, 100, respectively; upper and lower ends 98 and 100 are detachably connected to lower and lower ends 102 and 104 of upper and lower vertical tubes 60 and 62, respectively; the detachable connection may be a pin or bolt connection, such as bolt connector 56 or the like.

Because the utility model discloses whole volume is great, so fall into scaffold frame 52 and lower scaffold frame 54 two parts with frame 12, help installation and transportation.

The working horizontal tube 106 is connected in a fixed manner to the inside of the inner vertical tube 92 as shown in fig. 3. The outer leg 108 of the inner vertical tube 92 extends downwardly below the lower horizontal tube 96. The outer leg 108 acts on the attachment point at the lower end of the diagonal support plate 110. A work level tube 106 provides support for the lower foot pedal 24.

The lower stop 112 is attached into the inbound end 114 of the working level vial 106. So that the lower stop 112 has the same function as the associated upper stop plate 80. And the lower stop 112 serves to hold the lower foot plates 24 in place and prevent them from sliding toward the building 36.

The scaffold 10 includes a pair of upper footrests 22 and a lower foothold 24, and the upper footrests 22 and the lower foothold 24 have a pair of end hooks 116 to be spaced apart so that the upper footrests 22 and the lower foothold 24 are respectively installed in the lower horizontal pipe 66 or the working horizontal pipe 106. End hook 116 has an associated sliding latch so that upper foot pedal 22 and lower foot pedal 24 do not inadvertently disconnect from their associated tubes.

Each scaffolding 10 is assembled from two spaced apart frames 12 and the frames 12 are connected by securing the lower 66 and work 106 horizontal tubes and the upper 22 and lower 24 footrests. However, to provide sufficient rigidity and resistance to separation of the frame 12, the upper and lower wire frames 14, 16, 18 and 20 are used as stabilizing members.

Referring to fig. 6, the upper wire frame 14 is a wire mesh truss, generally rectangular; and consists of an upper truss top horizontal pipe 120, an upper truss bottom horizontal pipe 122, a left upper truss vertical end pipe 124 and a right upper truss vertical end pipe 126; the tubes are hollow metal tubes with square or rectangular sections; truss wire mesh is typically welded or otherwise secured to the four tubes of the upper net 14 at truss mesh 128.

The top rail 130 of the upper rack 14 is connected to the upper truss top horizontal tube 120 and also to the upper edge of the truss grid 128; welding is generally used. The top guardrail 130 is preferably a circular tube and has a flat attachment end 132; the attachment ends 132 are positioned outboard of the left upper truss vertical end tube 124 and the right upper truss vertical end tube 126. The flat attachment end 132 has an aperture 134.

As shown in fig. 8 and 9, the tubing in the frame 12 is typically provided with locks 140 to interconnect the tubing. The lock 140 is a vertically oriented fall arrest lock. When lock 140 is attached to a horizontal pipe, such as upper horizontal pipe 64 or lower horizontal pipe 96, then lock 140 will slide generally horizontally between the locking and unlocking portions. In both directions, the structure and function are the same. Suitable biasing elements, such as springs or the like, may be used to retain the lock in its locked position.

The generally U-shaped lock slide 142 in the lock 140 has an inner leg 144 formed with an elongated closed aperture 146. The locking pin 148 is first provided with an attached internal spacer 150. The closed bore 146 is then slid over the locking pin 148 with the inner spacer 150 on the outside. A second outer spacer 152 is then slid onto the locking pin 148 and welded in place. Now, the locking slide 142 is secured to the locking pin 148 between the two spacer washers 150; thus, the lock slide 142 is secured between the two spacer washers 150. The lock slide 142 is free to slide along the length of the elongated closed bore 146. The lock slide 142 is retained on the lock pin 148 by spaced, welded inner and outer washers 150 and 152, respectively.

Since the outer leg 154 of the U-shaped lock slide 142 is connected to the inner leg 144 by a web 156. The outer leg 154 has a downwardly opening slot 158 and is spaced from the inner leg 144. Web 156 is connected so that it will engage with a riser 160 of lock pin 148.

In use, one of these drop or slide locks 140 is secured in place to the stent frame tube. The inner ends of the locking pins 148 are inside of the inner spacer 150, inserted into appropriately positioned holes in the selected pipe, and the inner spacer 150 is welded to the pipe. It is also possible to have the inboard end of the locking pin 148 extend through the associated tube and hold it in place by a cotter pin or snap lock pin or possibly by bolting. Once the locking pin 148 has been properly positioned, the locking slide 142 is raised.

The attachment end 132 of the top rail 130 of the headnet 14 can be attached to the lock 140 by passing the outer stand tube 160 of the locking pin 148 through the hole 134. Once completed, the lock slide can be slid to its closed position. Once this is done at both ends of the headframe 14, the headframe 14 can be securely placed between the two spaced apart scaffolding frames 12.

It should be noted that the upper net cages 14 are located outside of the frames 12, that is, the sides of the upper vertical tubes 60 of both scaffolding frames 12 are further from the building 36.

A lower frame 16 of similar construction to the upper frame 14 is visible in fig. 5. The lower net rack 16 includes spaced left and right vertical risers 160 and 162, a kickplate 164, a pair of diagonal pipes 166, and a guardrail 168.

The kick plate 164 and the fence 168 cooperate to form a generally rectangular rigid frame to which a truss wire mesh 170 is secured, the mesh 170 being substantially identical to the truss mesh 128 used on the top head rack 14.

Wire mesh 170 is secured between riser 160, riser 162, kick plate 164 and guardrail 168 by welding or any other suitable securing means. Risers 160 and 162 and diagonal tubes 166 are preferably square or rectangular hollow metal tubes. This facilitates attachment of the wire mesh 170 to them by welding. The guard bar 168 is preferably a circular metal tube. It has a flat end 172 with an aperture 174 which is the same as the corresponding portion of the top rail 130 of the upper rack 14.

As shown in fig. 5 and 7, is generally L-shaped in side view at the kick plate 164 of the lower rack 16. It has a vertical leg 180, the vertical leg 180 having an outer surface 182 on which the wire mesh 170 is welded and an inner surface 184 on which the lower end of the diagonal tube 166 is welded. The bottom plate 186 of the L-shaped kick plate 164 is generally horizontal in the use position of the lower rack 16. The hook ears 188 are secured into the vertical risers 160, 162 of the lower net mount 16. The hooking ears 1888 are sized and positioned to engage a respective one of the upper or inner vertical tubes 60, 92 when the lower rack 16 is attached to the respective upper rack frame portion. As shown in fig. 1-4, between the lower scaffolding frames 54.

When the lower rack 16 is secured to the upper scaffolding frame 52 through the use of drop or slide locks 140, similar to the securing previously associated with the upper rack 14.

The upper and lower wire frames 14, 16 are mounted in a slightly overlapping or meshed fashion. The lower rack 16 is installed first and then the upper rack 14 is installed. The guard rails 168 of the lower rack 16 are under or on the outside of the truss lattice 128 of the subsequently installed upper rack 14. The upper rack 14 is positioned above or within the railing 168 of the lower rack 16. This mounting and engagement of the catch ears 188 of the lower rack 16 with the exterior.

Bottom plate 186 of each kick plate 164 is associated with and covers an associated outer edge of one of upper footboard 22 or lower footboard 24. In FIG. 7, the lower foot pedal 24 is shown generally at the kick plate 164, the kick plate 164 being adjacent to and covering the outer edge of the lower foot pedal 24, the lower foot pedal 24 being supported by the spaced apart working horizontal tubes 106 of the lower scaffold frame 54.

An upper rack 14 and a lower rack 16, each including a guardrail, an upper guardrail or a middle guardrail, are securely connected to its associated portion of the scaffold frame 12 and connect the two scaffold frame 12 portions together to solidify and reinforce the multi-point suspended scaffold. In the lower rack 16, an integral kick plate 164 further adds rigidity to each such lower rack 16 while also providing the required barrier so that the worker cannot extend his feet out of the rack. In addition, when a truss is used in conjunction with lower scaffold frame 54, railing 168 of lower network frame 16 effectively closes the space inside lower footboard 24 and upper footboard 22, again reducing the gaps or spaces that should not exist outside of the design.

By providing the upper and lower cross members 18, 20, further structural rigidity is provided to the assembled multi-point suspension bracket. Each of these beams is a generally X-shaped assembly of two elongated metal tubes 190 or tubes 192, the tubes 190 being connected to each other at pivots 194 that are equidistant at their ends. Those ends 196 are provided as flat ends with holes that are not specifically seen and in this case are engaged by a slide lock 198. These slide locks 198 are identical in construction to the lock slide 142. The horizontally oriented slide lock 198 provides a biasing element, such as a spring, so that additional force, other than friction, may be relied upon to retain the slide lock 19 in its closed position. The upper cross member 18 and the lower cross member 20 are identical in structure and function. Which combine with upper and lower net mounts 14, 16 and upper and lower footrests 22, 24 to securely connect adjacent support frames 12 to provide the resulting multi-point suspension support in accordance with the present invention.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (7)

1. A multipoint suspension scaffold, comprising:

a first frame;

a second frame;

the first frame and the second frame are both provided with a suspension steel cable and a winch; a pedal and a net rack are arranged between the first frame and the second frame; the pedal is divided into an upper pedal and a lower pedal; the upper pedal and the lower pedal are parallel to each other and have different vertical heights;

the corresponding control of the winch is arranged on the corresponding steel cable on the first frame and the second frame; one end of the suspension steel cable is provided with a steel cable ring; the steel cable ring is hung on the supporting leg beam; the supporting leg beam is arranged on a building;

the net rack comprises a guardrail and a kickplate.

2. The multipoint suspension scaffold according to claim 1, characterized in that: the first and second frames each include an upper scaffolding frame and a lower scaffolding frame.

3. The multipoint suspension scaffold according to claim 2, characterized in that: a first pedal, a second pedal and a third pedal which are adjacent to each other are arranged between the lower scaffold frames; the third pedal, the first pedal and the second pedal are parallel to each other and have different vertical heights.

4. The multipoint suspension scaffold according to claim 1, characterized in that: an upper cross beam and a lower cross beam are connected between the first frame and the second frame; the upper cross beam and the lower cross beam are parallel to each other and are arranged in a crossed manner through a pivot.

5. The multipoint suspension scaffold according to claim 1, characterized in that: the first frame and the second frame are composed of hollow metal tubes, and the hollow metal tubes are parallel or perpendicular to each other.

6. The multipoint suspension scaffold according to claim 1, characterized in that: the net mount includes vertical legs connected to the wire mesh and a kick plate located below the wire mesh.

7. The multipoint suspension scaffold according to claim 6, characterized in that: the surface of the vertical leg is provided with a hook ear which combines the net rack to the first frame and/or the second frame.

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