Quick disassembly scaffolding

Abstract

The present invention discloses a quick disassembly and assembly scaffold, which comprises: a plurality of unit frames, which are spliced ​​in sequence along the vertical direction, each unit frame comprises two pairs of legs and a plurality of cross bars, any two adjacent legs are connected by at least one horizontally arranged cross bar; the two pairs of legs of any two adjacent unit frames are detachably connected; a working platform, which is detachably connected to the two pairs of legs of the unit frame located at the top; the edge of the working platform is surrounded by a guardrail, and the upper surface is provided with an anti-skid layer; two pairs of universal wheels, which are detachably arranged at the bottom of the four legs corresponding to the unit frame at the bottom. The scaffold of the present invention is assembled and combined by a plurality of unit frames, can be quickly installed and disassembled, and the height of the working platform can be flexibly adjusted according to the working height.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment for building construction, and more specifically, to a quick disassembly and assembly scaffold. Background Art

[0002] Scaffolding is widely used in advertising, municipal administration, transportation, roads and bridges, mining and other departments. Scaffolding is a work platform built to facilitate high-altitude construction operations. Most of the existing scaffoldings are composed of multiple horizontal bars and multiple vertical bars assembled and assembled with each other. During the assembly process, a large number of bolts are used to connect adjacent rods, or the junctions of the rods are connected by welding. The above two connection methods both have the defects of many independent parts, heavy assembly workload, and inability to flexibly adjust the height of the work platform according to construction requirements. The first connection method also has the problem that a large number of bolts will loosen the connection structure due to fatigue and other factors during long-term use, and it is not easy to disassemble; the second connection method cannot be disassembled, which makes it inconvenient to transfer and store. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0004] In order to achieve these purposes and other advantages according to the present invention, a quick disassembly scaffold is provided, which comprises:

[0005] A plurality of unit frames are sequentially spliced ​​in the vertical direction, each unit frame comprises two pairs of legs and a plurality of cross bars, any two adjacent legs are connected by at least one horizontally arranged cross bar; the two pairs of legs of any two adjacent unit frames are detachably connected;

[0006] A working platform is detachably connected to two pairs of legs of the unit frame at the top; a guardrail is arranged around the edge of the working platform; and an anti-slip layer is arranged on the upper surface of the working platform;

[0007] Two pairs of universal wheels are detachably arranged at the bottom of four legs corresponding to the bottom unit frame.

[0008] Preferably, in the quick disassembly and assembly scaffolding, each leg is hollow, and each leg is correspondingly provided with a connecting mechanism, and each connecting mechanism comprises:

[0009] A pair of first slide grooves are symmetrically arranged on the inner wall of the supporting leg; the lower ends of the first slide grooves extend to the bottom of the supporting leg;

[0010] A first limiting groove is arranged on the inner wall of the leg along a circumferential direction, and the first limiting groove is connected to the upper end of the first sliding groove;

[0011] A connecting member is rotatably arranged inside the supporting leg along the circumferential direction, a first clamping groove is arranged at the upper end of the connecting member, and a first clamping block adapted to the first clamping groove is arranged at the lower end;

[0012] A pair of first sliding blocks are symmetrically arranged on both sides of the top of the connecting member, each first sliding block corresponds to a first sliding groove, and the first sliding block can slide in the first sliding groove to the first clamping groove along the vertical direction.

[0013] Preferably, in the quick-disassembly scaffolding, any two adjacent legs are connected by two horizontally arranged cross bars, and each cross bar is a telescopic rod body.

[0014] Preferably, in the quick-disassembly scaffolding, the multiple cross bars correspondingly arranged on the opposite sides each include two unit rods hinged to each other through a first hinge, each unit rod is a telescopic rod body; the free ends of the two unit rods are hinged to the corresponding leg side walls through a second hinge.

[0015] Preferably, in the quick disassembly and assembly scaffolding, the second hinge comprises a central axis and a sleeve rotatably mounted on the central axis, one side of the sleeve is connected to the corresponding unit rod, and one side of the leg is connected to the central axis through a first mounting block; a first through hole is provided on one side of the sleeve, a second through hole is provided on the central axis, and a second slider is provided on the first mounting block for sliding along the length direction of the unit rod; when the sleeve rotates relative to the central axis and the two unit rods are parallel to each other, the centers of the first through hole and the second through hole are located on the same horizontal line, and the second slider can slide horizontally through the first through hole and the second through hole and extend into the central axis.

[0016] Preferably, in the quick disassembly scaffold, a through hole is provided on one side of the leg, one end of the second slider is located inside the leg, and the other end passes through the through hole and is slidably connected to the first mounting block and can pass through the first through hole and the second through hole to extend into the central axis; a first spring is sleeved on the second slider, one end of which is connected to one end of the second slider, and the other end is connected to the first mounting block;

[0017] Each connector includes:

[0018] A movable rod is coaxially and vertically slidably disposed inside the supporting leg; a conical pushing block is disposed on one side of the movable rod, which can push one end of the second sliding block until the other end of the second sliding block passes through the first through hole and the second through hole and extends into the central axis;

[0019] A second spring, the upper end of which is connected to the top of the movable rod, and the lower end of which is connected to the inner wall of the supporting leg;

[0020] The first connecting rod has a lower end coaxially and rotatably arranged in the movable rod along the circumferential direction, and an upper end vertically passes through the top of the movable rod and extends to the top of the supporting leg. A guide block is arranged on the top of the first connecting rod, and a pair of first sliding blocks are symmetrically arranged on both sides of the guide block; the middle part of the top surface of the guide block is recessed downward to form a first slot; the lower end of the first connecting rod is provided with a second slot;

[0021] The second connecting rod has an upper end which is coaxial and slides in the movable rod along the vertical direction, and a lower end which passes through the movable rod vertically downward and extends to the bottom of the leg; the middle part of the second connecting rod is rotatably connected to the inner wall of the leg along the circumferential direction; the lower end of the second connecting rod is provided with a first block which is adapted to the first slot, and the upper end is provided with a second block which is adapted to the second slot.

[0022] Preferably, in the quick disassembly and assembly scaffolding, the horizontal cross-sections of the first card slot, the second card slot, the first card block and the second card block are all cross-shaped structures.

[0023] Preferably, in the quick disassembly and assembly scaffolding, the bottom edge of each leg of the unit frame at the bottom extends horizontally outward to form an annular base, and a pair of blind holes are provided on the base;

[0024] A second mounting block is provided on the top of each universal wheel, and the middle part of the top surface of the second mounting block is concave downward to form a third slot for the first slot corresponding to the bottommost leg to be inserted into. A pair of third sliders are symmetrically provided on the top of the second mounting block, and the third sliders can slide along the first slot into the first limiting slot; an annular mounting plate is sleeved on the bottom of the second mounting block, and a pair of mounting holes are symmetrically provided on the mounting plate; threads are provided on the mounting holes and the inner walls of the blind holes;

[0025] When the third slider slides into the first limiting groove along the first slide groove corresponding to the bottom leg, and then rotates in the circumferential direction until the third slider and the first slide groove do not interfere with each other in the vertical direction, a pair of mounting holes correspond to a pair of blind holes one by one, and the blind holes are connected to the mounting holes by bolts.

[0026] Preferably, in the quick disassembly and assembly scaffolding, the bottom of the working platform is provided with a receiving groove for inserting the upper part of the connecting piece on the topmost leg, a pair of second sliding grooves are provided on both sides of the receiving groove for the first slider to slide in the vertical direction, and the bottom is provided with an annular second limiting groove.

[0027] The present invention at least includes the following beneficial effects: the present invention provides a quick-disassembly and assembly scaffolding, which includes a plurality of unit frames and a work platform. The plurality of unit frames are spliced ​​and assembled in sequence, and the legs of each unit frame are distributed in a rectangular array. For each unit frame, any two adjacent legs are connected by at least one horizontally arranged cross bar. The four legs of two upper and lower adjacent unit frames correspond to each other one by one, and the corresponding upper and lower legs are detachably connected, such as by other achievable methods such as snap-on connection. The number of unit frames is determined according to the height of the construction operation. The work platform is spliced ​​on the four legs of the topmost unit frame. The work platform can use the work platform of the existing structure, and a guardrail is arranged circumferentially on the top, and an anti-slip pad is arranged on the upper surface to provide safety protection for construction workers; universal wheels are connected to the four legs of the bottommost unit frame to form a movable scaffolding. Each unit frame and the work platform are prefabricated structures to reduce the number of parts. The components are detachably connected, which realizes the rapid assembly and disassembly of the scaffolding, improves the disassembly and assembly efficiency of the scaffolding, and thus improves the construction efficiency.

[0028] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a quick disassembly and assembly scaffold described in one technical aspect of the present invention;

[0030] Figure 2 It is a structural schematic diagram of a quick disassembly and assembly scaffold in a first state according to another technical solution of the present invention;

[0031] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0032] Figure 4 It is a structural schematic diagram of the quick disassembly and assembly scaffolding in the second state described in another technical solution of the present invention;

[0033] Figure 5 for Figure 4 A partial enlarged view of B in the middle;

[0034] Figure 6 for Figure 4 A partial enlarged view of middle C;

[0035] Figure 7 A top view of a unit frame in an expanded state in another technical solution of the present invention;

[0036] Figure 8 It is a top view of the unit frame in a folded state in another technical solution of the present invention.

[0037] Explanation of the reference numerals in the specification: unit frame 1, cross bar 11, unit rod 111, first hinge 112, support leg 12, working platform 2, accommodating slot 21, second slide slot 22, second limiting slot 23, universal wheel 3, second mounting block 31, third slot 32, third slider 33, mounting plate 34, mounting hole 35, first slide slot 41, first limiting slot 42, movable rod 43, ejection block 44, second spring 45, first connecting rod 46, guide block 47, first slot 471, second connecting rod 48, first slider 49, second hinge 5, central axis 51, second through hole 511, sleeve 52, first through hole 521, first mounting block 53, second slider 54, first spring 55. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0039] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0040] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial channels unless otherwise specified.

[0041] In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0042] like Figures 1 to 8 As shown, the present invention provides a quick disassembly and assembly scaffold, which comprises:

[0043] A plurality of unit frames 1 are sequentially spliced ​​in the vertical direction, each unit frame 1 comprises two pairs of legs 12 and a plurality of cross bars 11, any two adjacent legs 12 are connected by at least one horizontally arranged cross bar 11; the two pairs of legs 12 of any two adjacent unit frames 1 are detachably connected;

[0044] A working platform 2 is detachably connected to two pairs of legs 12 of the unit frame 1 at the top; a guardrail is arranged around the edge of the working platform 2; and an anti-slip layer is arranged on the upper surface of the working platform 2;

[0045] Two pairs of universal wheels 3 are detachably arranged at the bottom of the four supporting legs 12 corresponding to the bottommost unit frame 1.

[0046] In the above technical scheme, the present invention provides a quick disassembly and assembly scaffolding, which includes a plurality of unit frames 1 and a work platform 2. The plurality of unit frames 1 are assembled in sequence, and the legs 12 of each unit frame 1 are distributed in a rectangular array. For each unit frame 1, any two adjacent legs 12 are connected by at least one horizontally arranged cross bar 11. The four legs 12 of two upper and lower adjacent unit frames 1 correspond to each other one by one, and the corresponding upper and lower legs 12 can be detachably connected, such as by other achievable methods such as snap-on connection. The number of unit frames 1 is determined according to the height of the construction operation, and the work platform 2 is spliced ​​to the four legs of the top unit frame 1. On the legs 12, the working platform 2 can select the working platform 2 of the existing structure, with a guardrail arranged circumferentially on the top and an anti-slip mat arranged on the upper surface to provide safety protection for the construction workers; the four legs 12 of the bottom unit frame 1 are connected with universal wheels 3 to form a movable scaffolding, and the universal wheels are provided with brake elements using existing technical means to position the scaffolding when the scaffolding does not need to be moved; each unit frame 1 and the working platform 2 are prefabricated structures to reduce the number of parts, and the components are detachably connected to realize the rapid assembly and disassembly of the scaffolding, improve the disassembly and assembly efficiency of the scaffolding, and thus improve the construction efficiency.

[0047] In another technical solution, in the quick disassembly and assembly scaffolding, each leg 12 is hollow, and each leg 12 is correspondingly provided with a connecting mechanism, and each connecting mechanism includes:

[0048] A pair of first slide grooves 41 are symmetrically arranged on the inner wall of the leg 12; the lower ends of the first slide grooves 41 extend to the bottom of the leg 12;

[0049] A first limiting groove 42 is circumferentially arranged on the inner wall of the leg 12, and the first limiting groove 42 is connected to the upper end of the first sliding groove 41;

[0050] A connecting member is rotatably arranged inside the supporting leg 12 along the circumferential direction, wherein a first clamping groove 471 is arranged at the upper end of the connecting member, and a first clamping block adapted to the first clamping groove 471 is arranged at the lower end;

[0051] A pair of first sliders 49 are symmetrically arranged on both sides of the top of the connecting member, each first slider 49 corresponds to a first slide groove 41 , and the first slider 49 can slide in the first slide groove 41 to the first clamping groove 471 along the vertical direction.

[0052] In the above technical solution, a connecting mechanism is correspondingly arranged on each leg 12, so that when two upper and lower adjacent unit frames 1 are spliced, the upper and lower corresponding legs 12 are detachably connected through the connecting mechanism. Specifically, each leg 12 is hollow, and each connecting mechanism includes a pair of first slide grooves 41 symmetrically arranged on both sides of the lower inner wall of the leg 12, an annular first limiting groove 42 connected to the upper end of the first slide groove 41, and a connecting piece arranged inside the leg 12, and the upper end of the connecting piece is provided with a first card groove 471 and a pair of first sliders 49, the lower end of the connecting member is provided with a first block which can be inserted into the first slot 471 (lower leg 12), the pair of first sliders 49 are arranged one by one with the pair of first slide grooves 41, for two adjacent unit frames 1, each first slider 49 on the leg 12 of the lower unit frame 1 (hereinafter referred to as the lower leg 12) can slide vertically along the first slide groove 41 on the leg 12 of the upper unit frame 1 (hereinafter referred to as the upper leg 12) and can slide to the first limit of the upper leg 12 The first block of the lower leg 12 is inserted into the first slot 471 (upper leg 12) when the first slider 49 slides into the first limiting slot 42. After all the unit frames 1 are assembled, all the legs 12 located on the same vertical line, the first block and the first slot 471 are connected by the matching arrangement (no displacement in the circumferential direction), and each first slider 49 can be driven to rotate circumferentially in the corresponding first limiting slot 42 by rotating the connecting piece relative to the leg 12 until the first slider 49 is aligned with the first limiting slot 42. The first slide grooves 41 are located at positions that do not interfere with each other in the vertical direction, that is, each first slider 49 is limited in the corresponding first limiting groove 42 in the vertical direction, and then all the legs 12 located on the same vertical line are connected (no displacement occurs in the vertical direction), so that multiple unit frames 1 are connected, and finally the working platform 2 is detachably connected to the four legs 12 of the unit frame 1 located at the top, and a pair of universal wheels 3 is detachably connected to the four legs 12 of the unit frame 1 located at the bottom, so that the entire scaffolding is quickly installed;

[0053] When the scaffolding needs to be disassembled, the working platform 2 is disassembled from the topmost unit frame 1, the pair of universal wheels 3 are disassembled from the bottommost unit frame 1, and the connecting piece is rotated relative to the support leg 12 to drive the first slider 49 to rotate in a circle in the corresponding first limiting groove 42, and rotate to the position where the first slider 49 corresponds to the corresponding first slide groove 41 in the vertical direction, and then the topmost unit frame 1 is lifted up in the vertical direction, and the first slider 49 slides out in the vertical direction along the corresponding first slide groove 41, and the topmost unit frame 1 is completely separated from the unit frame 1 below it, and the topmost unit frame 1 can be moved to an idle position, and all the unit frames 1 are lifted up and disassembled in the same way until all the connected multiple unit frames 1 are disassembled into a single one, and the disassembly of the scaffolding is completed.

[0054] In the present technical solution, by arranging matching first sliders 49-first slide grooves 41, first limit grooves 42, and first card grooves 471-first card blocks at the upper and lower ends of the legs 12, the upper and lower corresponding legs 12 are connected, and the self-locking of the connection between the upper and lower corresponding legs 12 is further achieved by rotating the first slider 49. The upper and lower unit frames 1 can be connected without additional connecting parts. The structure is simple, and disassembly and assembly are convenient and quick.

[0055] In another technical solution, any two adjacent legs 12 of the quick disassembly scaffold are connected by two horizontally arranged cross bars 11, and each cross bar 11 is a telescopic rod. The cross bars 11 are arranged to be telescopic, and can be retracted in an idle state to reduce the volume of the scaffold in an idle state, which is convenient for storage or movement; the size of the unit frame 1 can also be adjusted according to the size of the working platform 2, so that the unit frame 1 can be applied to working platforms 2 of different sizes.

[0056] In another technical solution, the multiple cross bars 11 correspondingly arranged on the two opposite sides of the quick disassembly scaffolding each include two unit rods 111 hinged to each other through a first hinge 112, and each unit rod 111 is a telescopic rod body; the free ends of the two unit rods 111 are hinged to the corresponding side walls of the legs 12 through a second hinge 5. Figures 7-8 As shown in the figure, the cross bar 11 symmetrically arranged on the left and right sides is a telescopic bar, and the cross bar 11 symmetrically arranged on the upper and lower sides includes two unit rods 111 hinged to each other by a first hinge 112. The two unit rods 111 can be relatively rotated to further fold the unit frame 1 to reduce the volume of the unit frame 1 in an idle state; the two unit rods 111 are rotated in a direction close to the center of the scaffolding body, and the two unit rods 111 can be folded to reduce the volume of the unit frame 1 for easy storage. When needed, the two unit rods 111 are rotated in a direction away from the center of the scaffolding body until the two unit rods 111 form a straight cross bar 11, and the unit frame 1 can be unfolded to form a square frame.

[0057] In another technical solution, the quick disassembly scaffolding, the second hinge 5 includes a central axis 51 and a sleeve 52 rotatably sleeved on the central axis 51, one side of the sleeve 52 is connected to the corresponding unit rod 111, and one side of the leg 12 is connected to the central axis 51 through a first mounting block 53; a first through hole 521 is provided on one side of the sleeve 52, a second through hole 511 is provided on the central axis 51, and a second slider 54 is slidably provided on the first mounting block 53 along the length direction of the unit rod 111; when the sleeve 52 rotates relative to the central axis 51, the two unit rods 111 are parallel to each other in a straight line (such as Figure 7 As shown), the centers of the first through hole 521 and the second through hole 511 are located on the same horizontal line, and the second slider 54 can slide horizontally through the first through hole 521 and the second through hole 511 to extend into the central axis 51.

[0058] In the above technical solution, the first hinge 112 includes a central axis 51, a sleeve 52 rotatably sleeved on the central axis 51 (one end), one side of the sleeve 52 is connected to the unit rod 111, and one side of the leg 12 is connected to the central axis 51 (the other end) through a first mounting block 53. The unit rod 111 is hinged to the side of the leg 12 through the sleeve 52, the central axis 51 and the first mounting block 53; the sleeve 52 and the central axis 51 are respectively provided with a first through hole 521 and a second through hole 511, and a second slider 54 is provided on the first mounting block 53. When the two unit rods 111 are unfolded and the scaffold is installed, Figure 7 As shown, the two unit rods 111 rotate to a state parallel to each other to form a cross bar 11 connecting the two front legs 12. At this time, the second slider 54 is slid along the length direction of the unit rod 111, and the second slider 54 slides horizontally through the first through hole 521 and the second through hole 511 to extend into the central axis 51, limiting the sleeve 52, and the sleeve 52 cannot rotate relative to the central axis 51, thereby realizing temporary positioning of the unit rod 111 in the unfolded state; when the scaffolding is disassembled and the unit frame 1 needs to be folded and stored, the second slider 54 is moved in the opposite direction, and the second slider 54 slides horizontally out of the central axis 51 and moves to a position that does not interfere with the first through hole 521 and the second through hole 511, the unit rod 111 and the leg 12 can rotate relative to each other, and the two unit rods 111 can also rotate relative to each other, and the unit frame 1 can be folded to the position as shown. Figure 8 Shown in stowed state.

[0059] In another technical solution, the quick disassembly scaffolding is provided with a through hole on one side of the leg 12, one end of the second slider 54 is located inside the leg 12, and the other end passes through the through hole to be slidably connected with the first mounting block 53 and can pass through the first through hole 521 and the second through hole 511 to extend into the central axis 51; the second slider 54 is sleeved with a first spring 55, one end of which is connected to one end of the second slider 54, and the other end is connected to the first mounting block 53;

[0060] Each connector includes:

[0061] The movable rod 43 is coaxially and vertically slidably disposed inside the supporting leg 12; a conical pushing block 44 is disposed on one side of the movable rod 43, which can push one end of the second sliding block 54, and push the second sliding block 54 until the other end of the second sliding block 54 passes through the first through hole 521 and the second through hole 511 and extends into the central axis 51;

[0062] A second spring 45, the upper end of which is connected to the top of the movable rod 43, and the lower end of which is connected to the inner wall of the leg 12;

[0063] The first connecting rod 46 has a lower end coaxially and rotatably arranged in the movable rod 43 along the circumferential direction, and an upper end vertically passes through the top of the movable rod 43 and extends to the top of the leg 12. A guide block is provided on the top of the first connecting rod 46, and a pair of first sliders 49 are symmetrically arranged on both sides of the guide block; the middle part of the top surface of the guide block is recessed downward to form a first clamping groove 471; the lower end of the first connecting rod 46 is provided with a second clamping groove;

[0064] The second connecting rod 48 has an upper end which is coaxial and slides in the movable rod 43 along the vertical direction, and a lower end which vertically passes through the movable rod 43 and extends to the bottom of the support leg 12; the middle part of the second connecting rod 48 is rotatably connected to the inner wall of the support leg 12 along the circumferential direction; the lower end of the second connecting rod 48 is provided with a first block which is adapted to the first slot 471, and the upper end is provided with a second block which is adapted to the second slot.

[0065] In the above technical solution, a through hole is provided on one side of the leg 12, and each second slider 54 is provided with a corresponding through hole. One end of each second slider 54 is a wedge-shaped structure and is located inside the leg 12, and the other end passes through the through hole and is slidably connected with the first mounting block 53 along the length direction of the unit rod 111;

[0066] Each connecting member includes: a movable rod 43 that can slide in the vertical direction inside the support leg 12, a second spring 45 that elastically connects the lower end of the movable rod 43 to the inner wall of the support leg 12, a first connecting rod 46 that rotates with the movable rod 43, and a second connecting rod 48 that is adapted to engage with the first connecting rod 46 through a second slot and a second block (the first block and the first slot 471 can move in the vertical direction, but cannot rotate in the circumferential direction, so that the first connecting rod 46 and the second connecting rod 48 can be relatively displaced in the vertical direction, but cannot be relatively displaced in the circumferential direction, and the movements of the first connecting rod 46 and the second connecting rod 48 in the circumferential direction are linked); a conical push-out block 44 that is adapted to one end of the second slider 54 is provided on one side of the movable rod 43, and for any unit frame 1, In other words, when the upper unit frame 1 or the working platform 2 is lowered and assembled with each other, the upper unit frame 1 or the working platform 2 generates downward pressure on the guide block at the upper end of the leg 12 of the unit frame 1. After the first slider 49 on the guide block moves into the first limiting groove 42 in the upper unit frame 1 or into the second limiting groove 23 in the receiving groove of the working platform 2, the upper unit frame 1 or the working platform 2 continues to move downward for a certain distance, and presses the guide block on the unit frame 1 downward for a certain distance, driving the movable rod 43 to move downward, and then driving the push block 44 to move downward. The downward movement of the push block 44 will horizontally push the second slider 54, and push the second slider 54 until the other end of the second slider 54 passes through the first through hole 521 and the second through hole 511 and extends into the central axis 51, thereby realizing the locking of the two unit rods 111 in the unfolded state;

[0067] The first spring 55 and the second spring 45 are provided to help the movable rod 43 and the second sliding block 54 to automatically return to their original position during the disassembly and assembly process, thereby enabling the unit frame 1 to be folded and stored after disassembly and assembly.

[0068] In another technical solution, in the quick disassembly and assembly scaffold, the horizontal cross-sections of the first card slot 471, the second card slot, the first card block, and the second card block are all cross-shaped structures.

[0069] In another technical solution, in the quick disassembly and assembly scaffolding, the bottom edge of each leg 12 of the unit frame 1 at the bottom extends horizontally outward to form an annular base, and a pair of blind holes are provided on the base;

[0070] A second mounting block 31 is provided on the top of each universal wheel 3, and the middle part of the top surface of the second mounting block 31 is concave downward to form a third clamping groove 32 for the first clamping block corresponding to the bottommost leg 12 to be inserted into. A pair of third sliding blocks 33 are symmetrically provided on the top of the second mounting block 31, and the third sliding blocks 33 can slide along the first sliding groove 41 into the first limiting groove 42; an annular mounting plate 34 is sleeved on the bottom of the second mounting block 31, and a pair of mounting holes 35 are symmetrically provided on the mounting plate 34; threads are provided on the mounting holes 35 and the inner wall of the blind hole;

[0071] When the third slider 33 slides into the first limiting groove 42 along the first slide groove 41 corresponding to the bottom leg 12, and then rotates in the circumferential direction until the third slider 33 and the first slide groove 41 do not interfere with each other in the vertical direction, a pair of mounting holes 35 correspond one-to-one to a pair of blind holes, and the blind holes are connected to the mounting holes 35 by bolts.

[0072] In the above technical scheme, the present invention discloses a method for realizing the detachable connection between the universal wheel 3 and the unit frame 1 located at the bottom. Specifically, the bottom edge of each leg 12 of the unit frame 1 located at the bottom extends horizontally outward to form an annular base, and a pair of blind holes are arranged on the base; a second mounting block 31 is arranged on the top of each universal wheel 3, and the design of the second mounting block 31 is consistent with that of the guide block. A first clamping block arranged at the lower end of the connecting member of the leg 12 is arranged on the second mounting block 31 to be inserted into a third clamping groove 32, and a third sliding block 33 is also arranged on the second mounting block 31 to slide along a pair of first sliding grooves 41 arranged at the lower end of the leg 12. The second mounting block 31 is also partially different from the guide block in structure, and a mounting plate 34 is also arranged on the second mounting block 31, and mounting holes 35 corresponding to the blind holes are arranged on the mounting plate 34, and the inner walls of the blind holes and the mounting holes 35 are both provided with threads;

[0073] The bottom unit frame 1 can be connected to the universal wheel 3 first, and then the remaining unit frames 1 are stacked on the bottom unit frame 1, and then the working platform 2 is connected to the top unit frame 1, and finally the second mounting block 31 is rotated to drive all the connecting parts to rotate. The specific steps are as follows:

[0074] Step 1: Connect the four legs 12 of the bottom unit frame 1 to the four universal wheels 3 one by one, insert the second mounting block 31 on each universal wheel 3 into the lower end of the corresponding leg 12, and during the insertion process, the third slider 33 on the second mounting block 31 slides along the first slide groove 41 on the leg 12 of the bottom unit frame 1, and at the same time, the first card block on the leg 12 of the bottom unit frame 1 is inserted into the third card groove 32 on the second mounting block 31, and after being inserted into place, the third slider 33 moves into the first limiting groove 42;

[0075] Step 2, stack other unit frames 1 on top of the bottom unit frame 1, and for two unit frames 1 adjacent to each other, the upper unit frame 1 is lowered relative to the lower unit frame 1 in the vertical direction, and each leg 12 of the upper unit frame 1 is placed on the leg 12 of the lower unit frame 1, and the guide block on the leg 12 of the lower unit frame 1 is inserted into the leg 12 of the upper unit frame 1. At the same time, the first card block at the lower end of the leg 12 of the upper unit frame 1 is inserted into the first card groove 471 in the guide block of the leg 12 of the lower unit frame 1, and the first slider 49 on the guide block of the leg 12 of the lower unit frame 1 moves along the first slide groove 41 of the leg 12 of the upper unit frame 1 to the first limiting groove 42;

[0076] Step 3: The work platform 2 is lowered in the vertical direction, and the four receiving grooves on the work platform 2 correspond one by one to the four legs 12 of the topmost unit frame 1. The guide blocks on the upper ends of the four legs 12 of the topmost unit frame 1 are respectively inserted into the four receiving grooves. During the insertion process, the first slider 49 on the guide block on the upper ends of the legs 12 of the topmost unit frame 1 corresponds one by one to the second slide groove 22 in the corresponding receiving groove, and can slide along the second slide groove 22 to the second limiting groove 23;

[0077] Step 4: Rotate the second mounting block 31 in the circumferential direction to drive the third slider 33 and all the first sliders 49 to rotate in a circle. The third slider 33 rotates to a position where it does not interfere with the first slide groove 41 in the vertical direction (the projections of the third slider 33 and the first slide groove 41 in the vertical direction do not overlap, and the third slider 33 will not slide in the vertical direction and be limited in the first limiting groove 42, ensuring that the universal wheel 3 and the bottom leg 12 will not be relatively displaced in the vertical direction, and the universal wheel 3 is connected to the bottom unit frame 1), and the top first slider 49 rotates to a position where it does not interfere with the second slide groove 22 in the vertical direction (the projections of the first slider 49 and the second slide groove 22 in the vertical direction do not overlap, and the first slider 49 will not slide in the vertical direction and be limited in the second limiting groove 23, ensuring that the working platform 2 The remaining first sliders 49 are rotated to a position where they do not interfere with the first slide groove 41 in the vertical direction (the vertical projections of the first slider 49 and the first slide groove 41 do not overlap, and the first slider 49 will not slide in the vertical direction and is limited in the first limiting groove 42, ensuring that there will be no vertical relative displacement between the two adjacent legs 12, connecting the two adjacent unit frames 1). After rotating into place, the mounting holes 35 on the mounting plate 34 correspond exactly to the blind holes on the legs 12 of the bottom unit frame 1, and the blind holes are connected to the mounting holes 35 by bolts, thereby positioning the second mounting block 31 and avoiding unnecessary displacement of the second mounting block 31.

[0078] In another technical solution, in the quick disassembly and assembly scaffolding, the bottom of the work platform 2 is provided with a receiving groove 21 for inserting the upper part of the connecting piece on the topmost leg 12, a pair of second slide grooves 22 for the first slider 49 to slide in the vertical direction are provided on both sides of the receiving groove 21, and an annular second limit groove 23 is provided at the bottom. The receiving groove 21, the second slide groove 22 and the second limit groove 23 are provided at the bottom of the work platform 2 to realize the detachable connection between the leg 12 of the topmost unit frame 1 and the bottom of the work platform 2, and the synchronous self-locking of multiple unit frames 1 and the work platform 2 can be realized by rotating the connecting piece. The connection between the leg 12 of the topmost unit frame 1 and the work platform 2 is consistent with the connection method of any two corresponding legs 12 mentioned above. The first slider 49 on the leg 12 of the topmost unit frame 1 slides upward along the second slide groove 22 of the work platform 2 to the second limit groove 23. When the connecting piece rotates, the first slider 49 The block 49 rotates in the second limiting groove 23 until the first slider 49 and the second slide groove 22 do not interfere with each other. The first slider 49 is limited in the second limiting groove 23 of the working platform 2, that is, the working platform 2 is fixedly connected to the support leg 12 of the topmost unit frame 1. During disassembly, the connecting piece also rotates to drive the first slider 49 to rotate in the second limiting groove 23 until the first slider 49 and the second slide groove 22 correspond to each other in the vertical direction. The working platform 2 is lifted up, and the first slider 49 is completely removed from the second slide groove 22, and the working platform 2 can be removed from the topmost unit frame 1.

[0079] Preferably, in order to improve the stability of the connection between the unit frames 1 and the unit frames 1, and between the unit frames 1 and the working platform 2, a rubber pad is provided on the inner wall of each first limiting groove 42 and the second limiting groove 23, and the rubber pad can also play a shock-absorbing role.

[0080] The number of devices and processing scales described here are used to simplify the description of the present invention. Applications, modifications and variations of the present invention will be obvious to those skilled in the art.

[0081] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. Rapid disassembly and assembly scaffolding, characterized by: include: A plurality of unit frames are sequentially spliced ​​in the vertical direction, each unit frame comprises two pairs of legs and a plurality of cross bars, any two adjacent legs are connected by at least one horizontally arranged cross bar; the two pairs of legs of any two adjacent unit frames are detachably connected; A working platform is detachably connected to two pairs of legs of the unit frame at the top; a guardrail is arranged around the edge of the working platform; and an anti-slip layer is arranged on the upper surface of the working platform; Two pairs of universal wheels, which are detachably arranged at the bottom of the four legs corresponding to the bottommost unit frame; Wherein, each leg is provided with a corresponding connection mechanism, and each connection mechanism comprises: A pair of first slide grooves are symmetrically arranged on the inner wall of the supporting leg; the lower ends of the first slide grooves extend to the bottom of the supporting leg; A first limiting groove is circumferentially arranged on the inner wall of the leg, and the first limiting groove is connected to the upper end of the first sliding groove; A connecting member is rotatably arranged inside the supporting leg along the circumferential direction, a first clamping groove is arranged at the upper end of the connecting member, and a first clamping block adapted to the first clamping groove is arranged at the lower end; A pair of first sliding blocks are symmetrically arranged on both sides of the top of the connecting member, each first sliding block corresponds to a first sliding groove, and the first sliding block can slide in the first sliding groove to the first clamping groove along the vertical direction.

2. The quick disassembly and assembly scaffolding according to claim 1, characterized in that: Any two adjacent legs are connected by two horizontally arranged cross bars, and each cross bar is a telescopic rod body.

3. The quick disassembly and assembly scaffolding according to claim 2, characterized in that: The multiple cross bars correspondingly arranged on the two opposite sides each include two unit rods hinged to each other through a first hinge, and each unit rod is a telescopic rod body; the free ends of the two unit rods are hinged to the corresponding side walls of the supporting legs through a second hinge.

4. The quick disassembly and assembly scaffolding according to claim 3, characterized in that: The second hinge includes a central axis and a sleeve rotatably mounted on the central axis, one side of the sleeve is connected to the corresponding unit rod, and one side of the leg is connected to the central axis through a first mounting block; a first through hole is provided on one side of the sleeve, a second through hole is provided on the central axis, and a second slider is provided on the first mounting block for sliding along the length direction of the unit rod; when the sleeve rotates relative to the central axis and the two unit rods are parallel to each other, the centers of the first through hole and the second through hole are located on the same horizontal line, and the second slider can slide horizontally through the first through hole and the second through hole and extend into the central axis.

5. The quick disassembly and assembly scaffolding according to claim 4, characterized in that: A through hole is provided on one side of the leg, one end of the second slider is located inside the leg, and the other end passes through the through hole and is slidably connected to the first mounting block and can pass through the first through hole and the second through hole to extend into the central axis; a first spring is sleeved on the second slider, one end of which is connected to one end of the second slider, and the other end is connected to the first mounting block; Each connector includes: A movable rod is coaxially and vertically slidably disposed inside the supporting leg; a conical pushing block is disposed on one side of the movable rod, which can push one end of the second sliding block until the other end of the second sliding block passes through the first through hole and the second through hole and extends into the central axis; A second spring, the upper end of which is connected to the top of the movable rod, and the lower end of which is connected to the inner wall of the supporting leg; The first connecting rod has a lower end coaxially and rotatably arranged in the movable rod along the circumferential direction, and an upper end vertically passes through the top of the movable rod and extends to the top of the supporting leg. A guide block is arranged on the top of the first connecting rod, and a pair of first sliding blocks are symmetrically arranged on both sides of the guide block; the middle part of the top surface of the guide block is recessed downward to form a first slot; the lower end of the first connecting rod is provided with a second slot; The second connecting rod has an upper end which is coaxial and slides in the movable rod along the vertical direction, and a lower end which passes through the movable rod vertically downward and extends to the bottom of the leg; the middle part of the second connecting rod is rotatably connected to the inner wall of the leg along the circumferential direction; the lower end of the second connecting rod is provided with a first block which is adapted to the first slot, and the upper end is provided with a second block which is adapted to the second slot.

6. The quick disassembly and assembly scaffolding according to claim 5, characterized in that: The horizontal cross sections of the first card slot, the second card slot, the first card block, and the second card block are all cross-shaped structures.

7. The quick disassembly and assembly scaffolding according to claim 6, characterized in that: The bottom edge of each leg of the unit frame located at the bottom extends horizontally outward to form an annular base, and a pair of blind holes are provided on the base; A second mounting block is provided on the top of each universal wheel, and the middle part of the top surface of the second mounting block is concave downward to form a third slot for the first slot corresponding to the bottommost leg to be inserted into. A pair of third sliders are symmetrically provided on the top of the second mounting block, and the third sliders can slide along the first slot into the first limiting slot; an annular mounting plate is sleeved on the bottom of the second mounting block, and a pair of mounting holes are symmetrically provided on the mounting plate; threads are provided on the mounting holes and the inner walls of the blind holes; When the third slider slides into the first limiting groove along the first slide groove corresponding to the bottom leg, and then rotates in the circumferential direction until the third slider and the first slide groove do not interfere with each other in the vertical direction, a pair of mounting holes correspond to a pair of blind holes one by one, and the blind holes are connected to the mounting holes by bolts.

8. The quick disassembly and assembly scaffolding according to claim 6, characterized in that: The bottom of the working platform is provided with a receiving groove for inserting the upper part of the connecting piece on the topmost leg, a pair of second sliding grooves for the first sliding block to slide along the vertical direction are provided on both sides of the receiving groove, and a second annular limiting groove is provided at the bottom.

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