Aluminum alloy scaffolding board

Abstract

The present invention relates to the technical field of building construction, and in particular to an aluminum alloy scaffolding board, comprising a board body, a hook assembly and a pre-tightening assembly; the hook assembly comprises two hooks connected at both ends of the board body, and positioning holes are respectively arranged on the hooks; the pre-tightening assembly comprises a rotating shaft, a ratchet module and a tensioning module; the tensioning module comprises a tensioning steel cable, a tensioning cam, a matching body and an operating nut, and the matching body and the operating nut are coaxially fixed on the rotating shaft, and a matching hole matching the matching body is arranged on the tensioning cam; positioning pins matching the positioning holes are respectively arranged at both ends of the tensioning steel cable; the present invention, through the setting of the tensioning module and the modification of the hook, fixes the scaffolding in the upper and lower directions during use by the tensioning steel cable, thereby avoiding the problem of easy disengagement; the coordination of the tensioning steel cable and the tensioning cam can form a triangle with the tensioning steel cable and the hook by rotating the tensioning cam to a predetermined position, thereby forming a triangular prestress.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to an aluminum alloy scaffolding board. Background Art

[0002] Scaffolding boards, also known as scaffolding sheets, are laid on scaffolding or operating frames (hereinafter collectively referred to as scaffolding) to facilitate workers to walk on them, transfer materials and perform construction work. The structure of scaffolding boards is generally provided with hooks for hanging on the scaffolding and a board body in the middle at both ends. During use, the scaffolding boards are easily damaged due to frequent trampling, which in turn causes safety hazards. Therefore, they need to be replaced regularly, resulting in high costs. In addition, the scaffolding boards are only laid on the scaffolding and operating frames. If a heavy object falls and hits the scaffolding boards, the scaffolding boards will easily fall off the scaffolding after bouncing up under the action of their own elasticity. As a result, when the construction workers do not see the scaffolding boards falling, it is easy to step on the air. Accidents, and dropped scaffolding boards may lead to the expansion of accidents. Therefore, there is a need for an aluminum alloy scaffolding board that can extend the service life and prevent it from falling. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an aluminum alloy scaffolding board which can prolong the service life and avoid falling.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] An aluminum alloy scaffolding board comprises a board body, a hook assembly and a pre-tightening assembly;

[0006] The hook assembly includes two hooks, which are respectively connected to the two ends of the plate in the length direction, and the hooks are respectively provided with positioning holes;

[0007] The plate body comprises a plate surface and a rectangular frame, wherein the plate surface is arranged on the upper surface of the horizontally placed frame; the middle part of the frame is a force-bearing part;

[0008] The pre-tightening assembly comprises a rotating shaft, a ratchet module, and a tensioning module; the ratchet module comprises a ratchet member, a pawl, a spring, a connecting plate, and a connecting column, wherein the connecting plate is connected to the inner wall of the frame through the connecting column; a through hole is provided on the connecting plate for the rotating shaft to pass through, the connecting plate comprises a working surface, a limiting protrusion is provided on the working surface, the pawl is rotatably connected to the working surface, one end of the spring abuts against the limiting protrusion, and the other end abuts against the pawl; the rotating shaft is rotatably connected to the force-bearing part of the frame and passes through the through hole; the ratchet member is coaxially arranged on the rotating shaft on the working surface side and abuts against the pawl;

[0009] The tensioning module comprises a tensioning steel cable, a tensioning cam, a matching body, an operating nut and a wrench. The matching body and the operating nut are coaxially fixed on the rotating shaft. The tensioning cam is provided with a matching hole matching with the matching body. The tensioning cam can be separated and matched with the matching body through the matching hole. Both ends of the tensioning steel cable are respectively provided with positioning pins matching with the positioning holes.

[0010] When the aluminum alloy scaffolding board needs to be installed, the hooks at both ends of the board body are respectively hung on the scaffolding, and the positioning pins at both ends of the tensioning steel cable are respectively inserted into the positioning holes of the two hooks to form a limit binding to the scaffolding; the matching hole of the tensioning cam is matched and fixed with the matching body, and the rotating shaft is driven to rotate by the cooperation of the wrench and the operating nut, thereby driving the tensioning cam to rotate, and the protruding part of the tensioning cam is aligned with the tensioning steel cable, and at the same time, the protruding part of the tensioning cam is extended out from the bottom of the frame by the rotation of the wrench, so that the tensioning steel cable is tensioned to form a triangular force-bearing prestressed structure, and the installation is completed;

[0011] When the aluminum alloy scaffolding board needs to be disassembled, the wrench is used in conjunction with the operating nut to simultaneously move the pawl so that the pawl is separated from the ratchet wheel. The wrench is then turned to rotate the tensioning cam and then to relax the tensioning cable. The tensioning cam is separated from the mating body. The locating pin is removed from the locating hole and the tensioning cable is tied to the rotating shaft. The wrench is turned to roll the tensioning cable into the rotating shaft and the aluminum alloy scaffolding board is then disassembled after the tensioning cable is stored.

[0012] Preferably, a limiting groove is provided on the protruding portion of the tensioning cam, and the limiting groove is aligned with the tensioning cable.

[0013] Preferably, the edges of the tensioning cam are rounded.

[0014] Preferably, a bubble level is provided on the surface of the tensioning cam.

[0015] Preferably, a protection plate of the ratchet member is provided on the connecting plate, and the protection plate and the ratchet are arranged opposite to each other.

[0016] Preferably, the plate surface, frame, rotating shaft, ratchet wheel, pawl, tensioning cam, fitting body and operating nut are all made of the same aluminum alloy.

[0017] Preferably, the plate surface is punched to obtain a plurality of slots, and the punching process is achieved by cooperation between a punching head and a concave die;

[0018] During the punching process, the punching head is located above the die, and the hole diameter of the die is larger than the diameter of the punching head;

[0019] The lower surface of the plate surface is arranged upward between the punching head and the concave die for punching.

[0020] Preferably, the outer surface of the tension cable is coated with an elastic layer.

[0021] Preferably, scale lines are provided on the outer surface of the tensioning cable.

[0022] Preferably, after the wrench is rotated so that the tensioning cable is wound on the rotating shaft and stored, the protruding part of the tensioning cam is directed toward one end of the length direction of the plate body, the tensioning cam is matched and fixed with the matching body, and the aluminum alloy scaffolding board is disassembled.

[0023] The beneficial effects of the present invention are as follows: by setting up the tensioning module in combination with the modification of the existing hook assembly, it is possible to improve the existing scaffolding board, and by respectively setting locating pins that cooperate with the locating holes at both ends of the tensioning steel cable, the tubular scaffolding can be fixed in the upper and lower directions during use, thereby avoiding the problem in the prior art that only the hook is fixed from the upper side of the scaffolding pipe and is easy to fall out when hit by a heavy object, thereby ensuring safety and stability; at the same time, the cooperation of the tensioning steel cable and the tensioning cam can form a triangle with the tensioning steel cable and the hook by rotating the tensioning cam to a predetermined position, thereby forming a triangular prestress, and the tensioning cam transmits the force received to the tensioning cam. The rotating shaft is transmitted to the frame, which can improve the load-bearing effect of the frame; the tensioning cam is provided with a matching hole that cooperates with the matching body, so that the tensioning cam can be stored after separation, avoiding the aluminum alloy scaffolding boards from occupying space when they are stacked layer by layer, and at the same time, the ratchet assembly can avoid the reversal of the tensioning cam, which is convenient for adjustment and force stability; and the tensioning steel cable can be stored through the rotating shaft, and the ratchet assembly prevents the tensioning steel cable from automatically loosening, thereby ensuring the neatness of the aluminum alloy scaffolding board; the aluminum alloy scaffolding board of the present application can achieve stability while improving the load-bearing capacity, killing two birds with one stone, and at the same time, there is not much modification content, and the existing scaffolding board does not need to modify the mold, which will not excessively increase the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of an aluminum alloy scaffolding board from a first angle according to a specific embodiment of the present invention;

[0025] Figure 2 It is a schematic diagram of a first state of an aluminum alloy scaffolding board according to a specific embodiment of the present invention;

[0026] Figure 3 for Figure 2 Enlarged view of part A;

[0027] Figure 4 It is a schematic diagram of a second state of an aluminum alloy scaffolding board according to a specific embodiment of the present invention;

[0028] Figure 5 for Figure 4 Enlarged view of part B;

[0029] Explanation of reference numerals: 1. Plate body; 11. Plate surface; 12. Frame; 13. Slot hole; 2. Hook assembly; 21. Hook; 22. Positioning hole; 3. Preload assembly; 31. Rotating shaft; 32. Ratchet; 33. Pawl; 34. Spring; 35. Connecting plate; 351. Protective plate; 36. Connecting column; 37. Tensioning cam; 371. Matching hole; 372. Limiting groove; 373. Bubble level; 38. Matching body; 39. Operating nut. DETAILED DESCRIPTION

[0030] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0031] Please refer to Figures 1 to 5 , an aluminum alloy scaffolding board, comprising a board body 1, a hook assembly 2 and a pre-tightening assembly 3;

[0032] The hook assembly 2 includes two hooks 21, and the two hooks 21 are respectively connected to the two ends of the plate body 1 in the length direction, and the hooks 21 are respectively provided with positioning holes 22;

[0033] The plate body 1 includes a plate surface 11 and a rectangular frame 12, wherein the plate surface 11 is arranged on the upper surface of the horizontally placed frame 12; the middle portion of the frame 12 is a force-bearing portion;

[0034] The preload assembly 3 includes a rotating shaft 31, a ratchet module, and a tensioning module; the ratchet module includes a ratchet member 32, a pawl 33, a spring 34, a connecting plate 35 and a connecting column 36, and the connecting plate 35 is connected to the inner wall of the frame 12 through the connecting column 36; the connecting plate 35 is provided with a through hole for the rotating shaft 31 to pass through, the connecting plate 35 includes a working surface, a limiting protrusion is provided on the working surface, the pawl 33 is rotatably connected to the working surface, one end of the spring 34 is against the limiting protrusion, and the other end is against the pawl 33; the rotating shaft 31 is rotatably connected to the force-bearing part of the frame 12 and passes through the through hole; the ratchet member 32 is coaxially arranged on the rotating shaft 31 on the working surface side and is against the pawl 33;

[0035] The tensioning module comprises a tensioning steel cable, a tensioning cam 37, a matching body 38, an operating nut 39 and a wrench. The matching body 38 and the operating nut 39 are coaxially fixed on the rotating shaft 31. The tensioning cam 37 is provided with a matching hole 371 that matches with the matching body 38. The tensioning cam 37 can be separated and matched with the matching body 38 through the matching hole 371. Both ends of the tensioning steel cable are respectively provided with positioning pins that match with the positioning holes 22.

[0036] When the aluminum alloy scaffolding board needs to be installed, the hooks 21 at both ends of the board body 1 are respectively hung on the scaffolding, and the positioning pins at both ends of the tensioning cable are respectively inserted into the positioning holes 22 of the two hooks 21 to form a limit binding to the scaffolding; the matching hole 371 of the tensioning cam 37 is matched and fixed with the matching body 38, and the rotating shaft 31 is driven to rotate by the cooperation of the wrench and the operating nut 39, thereby driving the tensioning cam 37 to rotate, and the protruding part of the tensioning cam 37 is aligned with the tensioning cable, and at the same time, the protruding part of the tensioning cam 37 is extended out from the bottom of the frame 12 by the rotation of the wrench, so that the tensioning cable is tensioned to form a triangular force-bearing prestressed structure, and the installation is completed;

[0037] When the aluminum alloy scaffolding board needs to be disassembled, the wrench is used in conjunction with the operating nut 39 to simultaneously move the pawl 33 so that the pawl 33 is separated from the ratchet wheel 32, and the wrench is then turned to rotate the tensioning cam 37 to rotate and then relax the tensioning cable; the tensioning cam 37 is separated from the mating body 38; the locating pin is removed from the locating hole 22 and the tensioning cable is tied to the rotating shaft 31. The wrench is rotated to roll the tensioning cable into the rotating shaft 31 and the aluminum alloy scaffolding board is disassembled after it is stored.

[0038] As can be seen from the above description, by setting up the tensioning module in combination with the modification of the existing hook assembly 2, it is possible to implement improvements on the existing scaffolding board. By respectively providing positioning pins that cooperate with the positioning holes 22 at both ends of the tensioning steel cable, the tubular scaffolding can be fixed in both the upper and lower directions during use, thereby avoiding the problem in the prior art that only the hook 21 is fixed from the upper side of the scaffolding pipe and is easy to fall out when hit by a heavy object, thereby ensuring safety and stability. At the same time, the cooperation between the tensioning steel cable and the tensioning cam 37 can form a triangle with the tensioning steel cable and the hook 21 by rotating the tensioning cam 37 to a predetermined position, thereby forming a triangular prestress, and the tensioning cam 37 transmits the force received to the rotating shaft 31. , the rotating shaft 31 is transmitted to the frame 12, which can improve the load-bearing effect of the frame 12; the matching hole 371 that cooperates with the matching body 38 is provided on the tensioning cam 37, so that the storage of the tensioning cam 37 after separation can be realized, so as to avoid the aluminum alloy scaffolding boards occupying space when they are stacked layer by layer. At the same time, the reversal of the tensioning cam 37 can be avoided through the ratchet assembly, which is convenient for adjustment and force stability; and the tensioning steel cable can be stored through the rotating shaft 31, and the tensioning steel cable will not be automatically loosened through the ratchet assembly, so as to ensure the neatness of the aluminum alloy scaffolding board; through the aluminum alloy scaffolding board of the present application, stability can be achieved while improving the load-bearing capacity, killing two birds with one stone, and at the same time, there is not much modification content, and the existing scaffolding board does not need to modify the mold, which will not excessively increase the production cost.

[0039] Furthermore, a limiting groove 372 is provided on the protruding portion of the tensioning cam 37 , and the limiting groove 372 is aligned with the tensioning cable.

[0040] It can be seen from the above description that the setting of the limiting groove 372 can achieve the limitation of the steel cable, which is convenient for operation and avoids the disengagement of the tensioning steel cable.

[0041] Furthermore, the edge of the tensioning cam 37 is rounded.

[0042] It can be seen from the above description that the edge of the tensioning cam 37 is rounded, and since the tensioning cam 37 is protruding when in use, the protruding part is prevented from causing harm to the construction workers.

[0043] Furthermore, a bubble level 373 is provided on the surface of the tensioning cam 37 .

[0044] From the above description, it can be known that the bubble level 373 can be used to determine whether the tensioning cam 37 rotates a predetermined angle to avoid exceeding a predetermined range, which would cause the tensioning cam 37 to fail, the pre-tensioning force to be excessive, or the pre-tensioning force to be insufficient under the tension of the tensioning cable.

[0045] Furthermore, a protection plate 351 of the ratchet member is disposed on the connecting plate 35 , and the protection plate 351 and the ratchet pawl 33 are disposed opposite to each other.

[0046] It can be seen from the above description that the protection plate 351 is provided to protect the ratchet, and is provided as an object with the pawl 33 to avoid interference with the pawl 33 .

[0047] Furthermore, the plate surface 11, the frame 12, the rotating shaft 31, the ratchet member 32, the pawl 33, the tensioning cam 37, the fitting body 38, and the operating nut 39 are all made of the same aluminum alloy.

[0048] From the above description, it can be seen that the board surface 11, frame 12, rotating shaft 31, ratchet 32, pawl 33, tensioning cam 37, fitting body 38 and operating nut 39 are all made of the same aluminum alloy material, which reduces electrochemical corrosion at the contact points, especially since the working environment of the scaffolding is open-air and needs to face the problem of rain.

[0049] Furthermore, the plate surface 11 is punched to obtain a plurality of slots 13, wherein the punching process is performed by using a punching head and a die to cooperate to achieve the punching;

[0050] During the punching process, the punching head is located above the die, and the hole diameter of the die is larger than the diameter of the punching head;

[0051] The lower surface of the plate surface 11 is arranged upward between the punching head and the die for punching.

[0052] From the above description, it can be seen that during the punching process, holes are punched from the bottom of the board surface 11 upwards, and the aperture of the matching die is larger than the diameter of the punching head, so that the formed slot hole 13 can form a certain upward protrusion, similar to the shape of a crater. Through this shape, the friction force can be increased, avoiding accidents caused by the friction of the board surface 11 decreasing on rainy days, thereby improving safety.

[0053] Furthermore, the outer surface of the tensioning cable is coated with an elastic layer.

[0054] It can be seen from the above description that the provision of the elastic layer can prevent the tensioning cable from breaking and causing sharp edges that may harm construction workers.

[0055] Furthermore, scale lines are arranged on the outer surface of the tensioning cable.

[0056] From the above description, it can be seen that by setting the scale lines, after tensioning, the scale lines can be measured manually using a ruler to detect whether the tensioning cable is excessively deformed. If excessively deformed, the machine can be replaced.

[0057] Furthermore, after the wrench is rotated so that the tensioning cable is wound on the rotating shaft 31 and is stored, the protruding part of the tensioning cam 37 is directed toward one end of the length direction of the board body 1, and the tensioning cam 37 is fixed with the matching body 38 to remove the aluminum alloy scaffolding board.

[0058] It can be seen from the above description that by storing the tensioning cam 37, it is possible to avoid damage caused by collision during disassembly and transportation after disassembly, thereby ensuring the service life.

[0059] Embodiment 1

[0060] An aluminum alloy scaffolding board comprises a board body 1, a hook assembly 2 and a pre-tightening assembly 3;

[0061] The hook assembly 2 includes two hooks 21, and the two hooks 21 are respectively connected to the two ends of the plate body 1 in the length direction, and the hooks 21 are respectively provided with positioning holes 22;

[0062] The plate body 1 includes a plate surface 11 and a rectangular frame 12, wherein the plate surface 11 is arranged on the upper surface of the horizontally placed frame 12; the middle portion of the frame 12 is a force-bearing portion;

[0063] The preload assembly 3 includes a rotating shaft 31, a ratchet module, and a tensioning module; the ratchet module includes a ratchet member 32, a pawl 33, a spring 34, a connecting plate 35 and a connecting column 36, and the connecting plate 35 is connected to the inner wall of the frame 12 through the connecting column 36; the connecting plate 35 is provided with a through hole for the rotating shaft 31 to pass through, the connecting plate 35 includes a working surface, a limiting protrusion is provided on the working surface, the pawl 33 is rotatably connected to the working surface, one end of the spring 34 is against the limiting protrusion, and the other end is against the pawl 33; the rotating shaft 31 is rotatably connected to the force-bearing part of the frame 12 and passes through the through hole; the ratchet member 32 is coaxially arranged on the rotating shaft 31 on the working surface side and is against the pawl 33;

[0064] The tensioning module comprises a tensioning steel cable, a tensioning cam 37, a matching body 38, an operating nut 39 and a wrench. The matching body 38 and the operating nut 39 are coaxially fixed on the rotating shaft 31. The tensioning cam 37 is provided with a matching hole 371 that matches with the matching body 38. The tensioning cam 37 can be separated and matched with the matching body 38 through the matching hole 371. Both ends of the tensioning steel cable are respectively provided with positioning pins that match with the positioning holes 22.

[0065] When the aluminum alloy scaffolding board needs to be installed, the hooks 21 at both ends of the board body 1 are respectively hung on the scaffolding, and the positioning pins at both ends of the tensioning cable are respectively inserted into the positioning holes 22 of the two hooks 21 to form a limit binding to the scaffolding; the matching hole 371 of the tensioning cam 37 is matched and fixed with the matching body 38, and the rotating shaft 31 is driven to rotate by the cooperation of the wrench and the operating nut 39, thereby driving the tensioning cam 37 to rotate, and the protruding part of the tensioning cam 37 is aligned with the tensioning cable, and at the same time, the protruding part of the tensioning cam 37 is extended out from the bottom of the frame 12 by the rotation of the wrench, so that the tensioning cable is tensioned to form a triangular force-bearing prestressed structure, and the installation is completed;

[0066] When the aluminum alloy scaffolding board needs to be disassembled, the wrench is used in conjunction with the operating nut 39 to simultaneously move the pawl 33 so that the pawl 33 is separated from the ratchet wheel 32, and the wrench is then turned to rotate the tensioning cam 37 to rotate and then relax the tensioning cable; the tensioning cam 37 is separated from the mating body 38; the locating pin is removed from the locating hole 22 and the tensioning cable is tied to the rotating shaft 31. The wrench is rotated to roll the tensioning cable into the rotating shaft 31 and the aluminum alloy scaffolding board is disassembled after it is stored.

[0067] A limiting groove 372 is provided on the protruding portion of the tensioning cam 37 , and the limiting groove 372 is aligned with the tensioning cable.

[0068] The edges of the tensioning cam 37 are rounded.

[0069] A bubble level 373 is provided on the surface of the tensioning cam 37 .

[0070] The connecting plate 35 is provided with a protection plate 351 of the ratchet member, and the protection plate 351 and the ratchet pawl 33 are arranged opposite to each other.

[0071] The plate surface 11 , the frame 12 , the rotating shaft 31 , the ratchet wheel 32 , the pawl 33 , the tensioning cam 37 , the fitting body 38 , and the operating nut 39 are all made of the same aluminum alloy.

[0072] The plate surface 11 is punched to obtain a plurality of slots 13, wherein the punching process is performed by using a punching head and a die to cooperate to achieve the punching;

[0073] During the punching process, the punching head is located above the die, and the hole diameter of the die is larger than the diameter of the punching head;

[0074] The lower surface of the plate surface 11 is arranged upward between the punching head and the die for punching.

[0075] The outer surface of the tensioning steel cable is covered with an elastic layer.

[0076] Scale lines are arranged on the outer surface of the tensioning cable.

[0077] After the wrench is turned to reel the tensioning cable into the rotating shaft 31 and complete the storage, the protruding part of the tensioning cam 37 is directed toward one end of the length direction of the board body 1, and the tensioning cam 37 is fixed with the matching body 38 to remove the aluminum alloy scaffolding board.

[0078] Embodiment 2

[0079] An aluminum alloy scaffolding board comprises a board body 1, a hook assembly 2 and a pre-tightening assembly 3;

[0080] The hook assembly 2 includes two hooks 21, and the two hooks 21 are respectively connected to the two ends of the plate body 1 in the length direction, and the hooks 21 are respectively provided with positioning holes 22;

[0081] The plate body 1 includes a plate surface 11 and a rectangular frame 12, wherein the plate surface 11 is arranged on the upper surface of the horizontally placed frame 12; the middle portion of the frame 12 is a force-bearing portion;

[0082] The preload assembly 3 includes a rotating shaft 31, a ratchet module, and a tensioning module; the ratchet module includes a ratchet member 32, a pawl 33, a spring 34, a connecting plate 35 and a connecting column 36, and the connecting plate 35 is connected to the inner wall of the frame 12 through the connecting column 36; the connecting plate 35 is provided with a through hole for the rotating shaft 31 to pass through, the connecting plate 35 includes a working surface, a limiting protrusion is provided on the working surface, the pawl 33 is rotatably connected to the working surface, one end of the spring 34 is against the limiting protrusion, and the other end is against the pawl 33; the rotating shaft 31 is rotatably connected to the force-bearing part of the frame 12 and passes through the through hole; the ratchet member 32 is coaxially arranged on the rotating shaft 31 on the working surface side and is against the pawl 33;

[0083] The tensioning module comprises a tensioning steel cable, a tensioning cam 37, a matching body 38, an operating nut 39 and a wrench. The matching body 38 and the operating nut 39 are coaxially fixed on the rotating shaft 31. The tensioning cam 37 is provided with a matching hole 371 that matches with the matching body 38. The tensioning cam 37 can be separated and matched with the matching body 38 through the matching hole 371. Both ends of the tensioning steel cable are respectively provided with positioning pins that match with the positioning holes 22.

[0084] When the aluminum alloy scaffolding board needs to be installed, the hooks 21 at both ends of the board body 1 are respectively hung on the scaffolding, and the positioning pins at both ends of the tensioning cable are respectively inserted into the positioning holes 22 of the two hooks 21 to form a limit binding to the scaffolding; the matching hole 371 of the tensioning cam 37 is matched and fixed with the matching body 38, and the rotating shaft 31 is driven to rotate by the cooperation of the wrench and the operating nut 39, thereby driving the tensioning cam 37 to rotate, and the protruding part of the tensioning cam 37 is aligned with the tensioning cable, and at the same time, the protruding part of the tensioning cam 37 is extended out from the bottom of the frame 12 by the rotation of the wrench, so that the tensioning cable is tensioned to form a triangular force-bearing prestressed structure, and the installation is completed;

[0085] When the aluminum alloy scaffolding board needs to be disassembled, the wrench is used in conjunction with the operating nut 39 to simultaneously move the pawl 33 so that the pawl 33 is separated from the ratchet wheel 32, and the wrench is then turned to rotate the tensioning cam 37 to rotate and then relax the tensioning cable; the tensioning cam 37 is separated from the mating body 38; the locating pin is removed from the locating hole 22 and the tensioning cable is tied to the rotating shaft 31. The wrench is rotated to roll the tensioning cable into the rotating shaft 31 and the aluminum alloy scaffolding board is disassembled after it is stored.

[0086] A limiting groove 372 is provided on the protruding portion of the tensioning cam 37 , and the limiting groove 372 is aligned with the tensioning cable.

[0087] The edges of the tensioning cam 37 are rounded.

[0088] A bubble level 373 is provided on the surface of the tensioning cam 37 .

[0089] The connecting plate 35 is provided with a protection plate 351 of the ratchet member, and the protection plate 351 and the ratchet pawl 33 are arranged opposite to each other.

[0090] The plate surface 11 is punched to obtain a plurality of slots 13, wherein the punching process is performed by using a punching head and a die to cooperate to achieve the punching;

[0091] During the punching process, the punching head is located above the die, and the hole diameter of the die is larger than the diameter of the punching head;

[0092] The lower surface of the plate surface 11 is arranged upward between the punching head and the die for punching.

[0093] After the wrench is turned to reel the tensioning cable into the rotating shaft 31 and complete the storage, the protruding part of the tensioning cam 37 is directed toward one end of the length direction of the board body 1, and the tensioning cam 37 is fixed with the matching body 38 to remove the aluminum alloy scaffolding board.

[0094] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An aluminum alloy scaffolding board, characterized in that: It includes a plate body, a hook assembly and a pre-tightening assembly; The hook assembly includes two hooks, which are respectively connected to the two ends of the plate in the length direction, and the hooks are respectively provided with positioning holes; The plate body comprises a plate surface and a rectangular frame, wherein the plate surface is arranged on the upper surface of the horizontally placed frame; the middle part of the frame is a force-bearing part; The pre-tightening assembly comprises a rotating shaft, a ratchet module, and a tensioning module; the ratchet module comprises a ratchet member, a pawl, a spring, a connecting plate, and a connecting column, wherein the connecting plate is connected to the inner wall of the frame through the connecting column; a through hole is provided on the connecting plate for the rotating shaft to pass through, the connecting plate comprises a working surface, a limiting protrusion is provided on the working surface, the pawl is rotatably connected to the working surface, one end of the spring abuts against the limiting protrusion, and the other end abuts against the pawl; the rotating shaft is rotatably connected to the force-bearing part of the frame and passes through the through hole; the ratchet member is coaxially arranged on the rotating shaft on the working surface side and abuts against the pawl; The tensioning module comprises a tensioning steel cable, a tensioning cam, a matching body, an operating nut and a wrench. The matching body and the operating nut are coaxially fixed on the rotating shaft. The tensioning cam is provided with a matching hole matching with the matching body. The tensioning cam can be separated and matched with the matching body through the matching hole. Both ends of the tensioning steel cable are respectively provided with positioning pins matching with the positioning holes. When the aluminum alloy scaffolding board needs to be installed, the hooks at both ends of the board body are respectively hung on the scaffolding, and the positioning pins at both ends of the tensioning steel cable are respectively inserted into the positioning holes of the two hooks to form a limit binding to the scaffolding; the matching hole of the tensioning cam is matched and fixed with the matching body, and the rotating shaft is driven to rotate by the cooperation of the wrench and the operating nut, thereby driving the tensioning cam to rotate, and the protruding part of the tensioning cam is aligned with the tensioning steel cable, and at the same time, the protruding part of the tensioning cam is extended out from the bottom of the frame by the rotation of the wrench, so that the tensioning steel cable is tensioned to form a triangular force-bearing prestressed structure, and the installation is completed; When the aluminum alloy scaffolding board needs to be disassembled, the wrench is used in conjunction with the operating nut to simultaneously move the pawl so that the pawl is separated from the ratchet wheel. The wrench is then turned to rotate the tensioning cam and then to relax the tensioning cable. The tensioning cam is separated from the mating body. The locating pin is removed from the locating hole and the tensioning cable is tied to the rotating shaft. The wrench is turned to roll the tensioning cable into the rotating shaft and the aluminum alloy scaffolding board is then disassembled after the tensioning cable is stored.

2. The aluminum alloy scaffolding board according to claim 1 is characterized in that: A limiting groove is arranged on the protruding portion of the tensioning cam, and the limiting groove is aligned with the tensioning cable.

3. The aluminum alloy scaffolding board according to claim 1 is characterized in that: The edge of the tensioning cam is rounded.

4. The aluminum alloy scaffolding board according to claim 1, characterized in that: A bubble level is arranged on the surface of the tensioning cam.

5. The aluminum alloy scaffolding board according to claim 1, characterized in that: The connecting plate is provided with a protection plate of the ratchet member, and the protection plate and the ratchet pawl are arranged opposite to each other.

6. The aluminum alloy scaffolding board according to claim 1, characterized in that: The plate surface, frame, rotating shaft, ratchet wheel, pawl, tensioning cam, matching body and operating nut are all made of the same aluminum alloy.

7. The aluminum alloy scaffolding board according to claim 1, characterized in that: The plate surface is punched to obtain a plurality of slots, and the punching process is achieved by cooperation of a punching head and a concave die; During the punching process, the punching head is located above the die, and the hole diameter of the die is larger than the diameter of the punching head; The lower surface of the plate surface is arranged upward between the punching head and the concave die for punching.

8. The aluminum alloy scaffolding board according to claim 1, characterized in that: The outer surface of the tensioning steel cable is covered with an elastic layer.

9. The aluminum alloy scaffolding board according to claim 1, characterized in that: Scale lines are arranged on the outer surface of the tensioning cable.

10. The aluminum alloy scaffolding board according to claim 1, characterized in that: After the wrench is rotated to roll the tensioning steel cable onto the rotating shaft and complete storage, the protruding part of the tensioning cam is directed toward one end of the length direction of the plate body, and the tensioning cam is matched and fixed with the matching body, and then the aluminum alloy scaffolding board is disassembled.

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