Adjustable scaffold for construction and installation

Abstract

The invention discloses an adjustable scaffold for construction, installation and construction, and relates to the technical field of scaffolds. Comprising a bottom frame, a protection shell is arranged in the middle of the inner side of the bottom frame, a self-locking motor is arranged on the front side face of the protection shell, four universal wheels are arranged on the bottom side of the bottom frame, and two folding locking mechanisms are arranged above the protection shell; the folding locking mechanism comprises four supporting side arms, the four supporting side arms are hinged to the front side and the rear side of the bottom frame in pairs, an inner sliding groove is formed in the side face of each supporting side arm, a push rod is slidably connected to the inner side of each inner sliding groove, and an inclined supporting rod is rotatably connected to the middle of each push rod; according to the folding scaffold, the folding scaffold does not need to be assembled one by one, the folding scaffold can be locked after being directly unfolded, the building time is shortened, the folding scaffold is automatically locked after being in place through a clamping structure during installation, and the loosening risk caused by the fact that bolts are not tightened is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of scaffolding, and in particular to an adjustable scaffolding for construction and installation work. Background Art

[0002] An adjustable scaffolding is a common support device in building construction and is widely used in high-altitude operations of buildings. Its main function is to provide stable support to ensure that workers can safely carry out various construction operations. A scaffolding that can be adjusted in height by lifting is usually used in high-altitude operation sites to provide flexible support and safety, and is widely used in projects such as construction, decoration, and maintenance. Its design allows operators to adjust the height of the scaffolding according to needs, thus facilitating construction operations at different heights. By reasonably using the liftable scaffolding, work efficiency can be effectively improved, and safety and stability during the construction process can be ensured.

[0003] The patent with the publication number CN222686071U discloses an adjustable scaffolding for building construction, including a scaffolding main body. An adjusting mechanism is arranged on one side surface of the scaffolding main body, a protection mechanism is arranged on one side surface of the scaffolding main body, and a standing board is installed on one side surface of the scaffolding main body. For this adjustable scaffolding for building construction, through the settings of an adjusting frame, an adjusting rotary block, a card slot, a threaded rod, and a base, the height of the scaffolding main body can be adjusted according to construction requirements during use. By rotating the adjusting rotary block, the threaded rod can be driven to move in the threaded groove inside the adjusting frame, and then the base can be lifted or lowered, thus facilitating construction at different heights, improving construction efficiency, and enhancing construction safety. However, this patent still has the problems of being inconvenient to adjust the height or position according to the construction progress and being inconvenient to disassemble. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides an adjustable scaffolding for construction and installation work, solving the problems put forward in the above background art.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: An adjustable scaffolding for construction and installation work, including a bottom frame. A protective shell is arranged in the middle of the inner side of the bottom frame. A self-locking motor is arranged on the front side surface of the protective shell. Four universal wheels are arranged on the bottom side of the bottom frame. Two folding and locking mechanisms are arranged above the protective shell; The folding and locking mechanism includes four support side arms. Two of the four support side arms are grouped together and are respectively hinged to the front and rear sides of the chassis. An inner sliding groove is formed on the side surface of each support side arm. A push rod is slidably connected to the inner side of the inner sliding groove. A diagonal support rod is rotatably connected to the middle of the push rod. Hinge shaft seats are fixedly connected to the inner sides of the left and right ends of the chassis. Hinge shaft blocks are rotatably connected to the outer sides of the ends of the hinge shaft seats away from the chassis. A support frame is fixedly connected to the end of the hinge shaft block away from the hinge shaft seat. A hinge connecting rod is fixedly connected to the upper surface of the hinge shaft block. Receiving rod blocks are fixedly connected to the upper surfaces of the left and right ends of the chassis. Connecting rod blocks are slidably connected to the front and rear ends inside the receiving rod blocks.

[0006] According to the above technical solution, a safety locking mechanism is provided above each folding and locking mechanism, and a protective storage mechanism is provided between the two safety locking mechanisms. The output shaft of the self-locking motor is fixedly connected to a cable winding roller. A steel cable is wound around the outer side of the cable winding roller. A limit block is fixedly connected to the end of the connecting rod block away from the receiving rod block. A limit block strip is fixedly connected to the inner side of the bottom end of the support frame. A threaded support rod is threadedly connected to the end of the support side arm away from the chassis. A support rod knob is fixedly connected to the top end of the threaded support rod.

[0007] According to the above technical solution, the rear end of the protective shell is fixedly connected to the chassis. The self-locking motor is installed in the middle of the front side of the chassis. The hinge shaft block on the right side is twice the length of the hinge shaft block on the left side. The hinge connecting rod is rotatably connected to the diagonal support rod. A contraction spring is arranged inside the connecting rod block, and the middle of the contraction spring is fixed to the inner wall of the receiving rod block, and the front and rear ends of the contraction spring are respectively fixed to the two connecting rod blocks. When the support frame is unfolded by folding and flipping, by manually flipping the support frame, when the support frame is flipped, the hinge shaft block fixed to the support frame rotates around the connected hinge shaft seat. During the flipping process, the bottom of the support frame presses on the inclined surface of the limit block through the limit block strip, so that the inclined surface of the limit block is stressed to push the connecting rod block to extend outward from the inside of the receiving rod block and pull the contraction spring to be compressed and deformed. When the limit block fits the side surface of the support frame and is no longer blocked by the limit block strip, the contraction spring inside the receiving rod block pulls the connecting rod block to contract into the receiving rod block through elastic reset. The connecting rod block pulls the limit block to slide along the limit block strip to the bottom end of the support frame during the above movement process. At this time, the support frames on both the left and right sides are perpendicular to the horizontal plane of the chassis through flipping, which plays a role in quickly locking the support frame. At the same time, when the support frame is flipped through the fixed hinge shaft block, the hinge connecting rod connected to the hinge shaft block will pull the diagonal support rod to move as it flips. The diagonal support rod moves to pull the push rod to move and slide along the inner sliding grooves of the connected support side arms on both sides. The support side arms are quickly unfolded around the connection with the chassis by the sliding of the push rod in the inner sliding grooves. Then, by rotating the support rod knob, the threaded support rod is adjusted to extend downward along the connection of the support side arms and contact the ground.

[0008] According to the above technical solution, the safety locking mechanism includes a lifting frame, the lifting frame is slidably connected to the inner side of the support side arm, the inner side of the lifting frame is slidably connected with a lifting end, the top and bottom sides of the support side arm are fixedly connected with wheel seat plates, two seat plate guide wheels are installed on the side of each wheel seat plate, the bottom inner side of the lifting frame is rotatably connected with a bottom guide wheel of the frame, two bottom side guide wheels are installed on the bottom side of the lifting frame, two top guide wheels are installed on the top of the lifting frame, a metal strip is arranged above each lifting end, a connecting rod is fixedly connected to the middle of the metal strip, and an elastic piece is fixedly connected to the end of the connecting rod away from the metal strip.

[0009] According to the above technical solution, clamping rods are hinged to both bottom ends of the elastic piece, a plurality of equally spaced clamping grooves are formed in the front and rear inner sides of the lifting frame, long sliding strips are slidably connected to the front and rear ends inside the lifting frame, long strip limit blocks are slidably connected to both the upper and lower ends of each long sliding strip, a handle rod is fixedly connected to the bottom side of each long sliding strip, and a toothed handle is rotatably connected to the bottom inside of the front and rear sides of the lifting frame.

[0010] According to the above technical solution, two vertical guide rods are fixedly connected to the inner side of the lifting frame, and the vertical guide rods are slidably connected to the lifting end. The metal strip is fixedly connected to the steel cable, the top end of the steel cable is fixedly connected to the lifting end, both of the clamping rods slide through the inside of the lifting end, the long strip limiting block is fixedly connected to the lifting frame, and the inner side surface of the support side arm in contact with the lifting frame is provided with equally spaced clamping teeth. A spring piece is arranged inside the lifting frame, and both ends of the spring piece are fixedly connected to the lifting frame and the long sliding strip respectively. The top end of the steel cable is fixed on the lifting end. The steel cable bypasses the top guide wheel at the top of the lifting frame from above the lifting end and is led downward to the bottom guide wheel installed on the lifting frame, and then bypasses the bottom guide wheel at the bottom of the frame and is led to the seat plate guide wheel at the top of the support side arm and bypasses this seat plate guide wheel and is led to the seat plate guide wheel at the bottom end of the support side arm. The steel cable bypasses the seat plate guide wheel at the bottom end of the support side arm and is led to the cable winding roller for winding. When the self-locking motor is in the working state and winds the steel cables on the left and right sides, at this time, the cable winding roller rotates counterclockwise. The left steel cable is wound from above the cable winding roller, and the right steel cable is wound from below the cable winding roller. When the cable winding roller winds, it pulls the steel cable to bypass the bottom guide wheel at the bottom of the lifting frame and the bottom side guide wheel, and uses the seat plate guide wheel above the support side arm as a fixed pulley to lift the lifting frame upward and slide upward along the support side arm. At the same time, the steel cable bypassing the bottom guide wheel bypasses the top guide wheel and uses the top guide wheel as a fixed pulley to pull the lifting end upward, so that the lifting end slides upward along the vertical sliding rod inside the lifting frame to achieve lifting. When the steel cable breaks, at this time, the steel cable cannot maintain a taut state, the metal strip loses the traction of the steel cable, and the elastic piece will restore its deformation. The elastic piece in the restored deformed state pushes the two adjacent clamping rods on both sides to pass through the clamping slots of the lifting frame, so that the relative position between the lifting end and the lifting frame becomes stationary. Subsequently, the clamping rod passes through the clamping slot and pushes the long sliding strip, so that the long sliding strip slides along the long strip limiting block and squeezes the spring piece. The movement of the long strip limiting block drives the connected handle rod, so that the handle rod pushes the protruding part of the tooth clamping handle to rotate and clamp on the clamping teeth inside the support side arm.

[0011] According to the above technical solution, the protection and storage mechanism includes a platform cross frame. A platform board is fixedly connected to the platform cross frame. Through plate slots are opened on both the front and rear sides of the platform cross frame. Two short hinge rods are slidably connected to both the front and rear ends of the platform cross frame. The end of the short hinge rod is hinged to a railing. A blocking plate is fixedly connected to the side surface of the railing. A spring groove is opened at the bottom end inside the railing. A spring block is slidably connected to the inner side of the spring groove. A elastic rod is fixedly connected to the bottom surface of the spring block. A lever is fixedly connected to the side surface of the spring block.

[0012] According to the above technical solution, the lever is slidably connected to the railing. The lever penetrates through the outer surface of the railing from the inside of the spring groove. A square block is provided at the end of the short hinge rod, and clamping holes for cooperating with the elastic rod are formed in the upper side surfaces of the square block. An elastic spring is arranged inside the spring groove, and both ends of the elastic spring are fixedly connected to the elastic block and the railing respectively. In the storage state, the short hinge rod is horizontal with the railing, and the lever connected to the elastic block is pushed by the elastic spring to be clamped in the square block at the end of the short hinge rod. The blocking plate connected to the railing is stored under the platform plate through the through plate groove formed on the side surface of the platform cross frame. At the same time, the length of the railing at the rear is less than that of the railing at the front, so that the front and rear railings are stored in a staggered manner during storage. In addition, when the two blocking plates connected to the railings are stored, the two blocking plates are attached to each other and stored in a staggered manner up and down. When the railing is lifted and lowered on the platform cross frame, the railing is pulled out from the side surface of the platform cross frame, and the railing is flipped to be perpendicular to the short hinge rod. At this time, the lever connected to the elastic block is pushed by the elastic spring to be clamped in the square block at the end of the short hinge rod, so that the railing plays a protective role. When the platform cross frame descends to be close to the ground, the railing is flipped so that the edge of the railing is placed on the supporting side arm, and the blocking plate is used as a ramp pedal to assist in transporting materials or workers walking. When the whole scaffolding needs to be stored, the platform cross frame is hooked on one end of the lifting end and retracted, so that the platform cross frame is flipped around the other hinged lifting end to achieve storage.

[0013] The present invention provides an adjustable scaffolding for construction and installation work. It has the following beneficial effects: In the present invention, by providing a folding and locking mechanism, a stable support structure is provided. The stable support structure can evenly disperse the load, prevent inclination or collapse caused by local overload. At the same time, in high altitude or bad weather such as strong wind and vibration, the scaffolding with good stability can maintain integrity, reduce accidents. In addition, the folding scaffolding does not need to be assembled one by one, and can be directly unfolded and locked, reducing the erection time. When installed, it is automatically locked by the clamping structure after being in place, avoiding the loosening risk caused by the bolts not being tightened; In the present invention, by providing a safety locking mechanism, the lifting frame and the lifting end are lifted and lowered synchronously through the steel cable winding, improving the lifting speed and increasing the rising height. When carrying out operations such as masonry and curtain wall installation on different floors simultaneously, the height of the adjustable scaffolding can be adjusted to match the construction progress, improving the construction efficiency. In addition, compared with the traditional non-self-locking scaffolding, the structure locking avoids the continuous falling of the lifting frame and the lifting end, and can completely avoid the risk of crashing from high altitude, ensuring the safety of workers and personnel below, and improving the safety; In the present invention, by providing a protection and storage mechanism, through flipping the railing, the railing can be quickly retracted, reducing the occupied space, facilitating the movement or storage of the scaffolding in a narrow area. At the same time, after the railing is laid flat, it can be lapped into a ramp channel, facilitating the handling of handcarts, small equipment or building materials, and increasing the safety during the rising process of the platform cross frame. Description of the Drawings

[0014] Figure 1 This is a front three-dimensional structure schematic diagram of the whole invention; Figure 2 This is a rear three-dimensional structure schematic diagram of the whole invention; Figure 3 This is a structure schematic diagram of the whole folding and locking mechanism of the invention; Figure 4 This is the whole of the invention Figure 3 An enlarged structure schematic diagram of A in it; Figure 5 This is a structure schematic diagram of the whole safety locking mechanism of the invention; Figure 6 This is the whole of the invention Figure 5 An enlarged structure schematic diagram of B in it; Figure 7 This is the whole of the invention Figure 5 An enlarged structure schematic diagram of C in it; Figure 8 This is a structure schematic diagram of the whole protection and storage mechanism of the invention; Figure 9 This is the whole of the invention Figure 8 An enlarged structure schematic diagram of D in it.

[0015] In the figure: 1, chassis; 2, protective shell; 3, self-locking motor; 4, universal wheel; 5, folding and locking mechanism; 51, support side arm; 52, inner chute; 53, push rod; 54, diagonal strut; 55, hinge seat; 56, hinge block; 57, support frame; 58, hinge connecting rod; 59, rod receiving block; 510, connecting rod; 511, limit block; 512, limit block strip; 513, strut knob; 514, threaded strut; 6, safety locking mechanism; 61, lifting frame; 62, lifting end; 63, wheel seat plate; 64, seat plate guide wheel; 65, frame bottom guide wheel; 66, bottom side guide wheel; 67, top guide wheel; 68, metal strip; 69, connecting strip; 610, elastic sheet; 611, clamping rod; 612, clamping groove; 613, long slide bar; 614, long strip limit block; 615, dialing handle rod; 616, toothed handle; 7, protection and storage mechanism; 71, platform cross frame; 72, platform plate; 73, through plate groove; 74, short hinge rod; 75, railing; 76, blocking plate; 77, spring groove; 78, elastic block; 79, lever; 710, elastic rod; 8, cable roller; 9, steel cable. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0017] Please refer toFigures 1-9 , an embodiment of the present invention is: an adjustable scaffolding for construction and installation work, including a chassis 1. A protective housing 2 is provided in the middle of the inner side of the chassis 1. A self-locking motor 3 is provided on the front side of the protective housing 2. Four universal wheels 4 are provided on the bottom side of the chassis 1. Two folding and locking mechanisms 5 are provided above the protective housing 2; The folding and locking mechanism 5 includes four support side arms 51. The four support side arms 51 are divided into two groups and are respectively hinged to the front and rear sides of the chassis 1. An inner chute 52 is provided on the side of each support side arm 51. A push rod 53 is slidably connected to the inner side of the inner chute 52. A diagonal strut 54 is rotatably connected to the middle of the push rod 53. Hinge seat blocks 55 are fixedly connected to the inner sides of the left and right ends of the chassis 1. A hinge block 56 is rotatably connected to the outer side of the end of the hinge seat block 55 away from the chassis 1. A support frame 57 is fixedly connected to the end of the hinge block 56 away from the hinge seat block 55. A hinge connecting rod 58 is fixedly connected to the upper surface of the hinge block 56. Connecting rod blocks 510 are slidably connected to the front and rear ends of the upper surfaces of the left and right ends of the chassis 1.

[0018] A safety locking mechanism 6 is provided above each folding and locking mechanism 5. A protective storage mechanism 7 is provided between the two safety locking mechanisms 6. The output shaft of the self-locking motor 3 is fixedly connected to a cable winding roller 8. A steel cable 9 is wound around the outer side of the cable winding roller 8. A limiting block 511 is fixedly connected to the end of the connecting rod block 510 away from the receiving rod block ; A limiting block bar 512 is fixedly connected to the inner side of the bottom end of the support frame 57. A threaded strut 514 is threadedly connected to the end of the support side arm 51 away from the chassis 1. A strut knob 513 is fixedly connected to the top end of the threaded strut 514.

[0019] The rear end of the protective case 2 is fixedly connected to the chassis 1. The self-locking motor 3 is installed in the middle of the front side of the chassis 1. The hinge block 56 on the right side is twice the length of the hinge block 56 on the left side. The hinge connecting rod 58 is rotatably connected to the diagonal strut 54. A contraction spring is arranged inside the connecting block rod 510, and the middle of the contraction spring is fixedly connected to the inner wall of the rod receiving block 59. The front and rear ends of the contraction spring are respectively fixedly connected to the two connecting block rods 510. When the support frame 57 is unfolded by folding and flipping, by manually flipping the support frame 57, when the support frame 57 is flipped, the hinge block 56 fixed to the support frame 57 rotates around the connected hinge seat 55. During the flipping process, the bottom of the support frame 57 presses on the inclined surface of the limit block 511 through the limit block bar 512, so that the inclined surface of the limit block 511 is stressed to push the connecting block rod 510 to extend outward from the inside of the rod receiving block 59 and pull the contraction spring to be deformed under pressure. When the limit block 511 fits against the side of the support frame 57 and is no longer blocked by the limit block bar 512, the contraction spring inside the rod receiving block 59 pulls the connecting block rod 510 to contract into the rod receiving block 59 through elastic reset. The connecting block rod 510 pulls the limit block 511 to fit against the limit block bar 512 and slide to the bottom end of the support frame 57 during the above movement process. At this time, the support frames 57 on both the left and right sides are perpendicular to the horizontal plane of the chassis 1 through flipping, which plays a role in quickly locking the support frame 57. At the same time, when the support frame 57 flips through the fixed hinge block 56, the hinge connecting rod 58 connected to the hinge block 56 will drive the diagonal strut 54 to move as it flips. The diagonal strut 54 moves to pull the push rod 53 to move and slide along the inner sliding groove 52 of the connected support side arms 51 on both sides. By the sliding of the push rod 53 in the inner sliding groove 52, the support side arms 51 are quickly unfolded around the connection of the chassis 1. Then, by rotating the support rod knob 513, the threaded support rod 514 is adjusted to extend downward along the connection of the support side arms 51 and contact the ground, providing a stable support structure. The stable support structure can evenly disperse the load and prevent tilting or collapse caused by local overload. At the same time, in high altitudes or bad weather such as strong winds and vibrations, the scaffolding with good stability can maintain integrity and reduce accidents. In addition, the folding scaffolding does not need to be assembled one by one and can be directly unfolded and locked, reducing the erection time. During installation, it is automatically locked through the clamping structure after being in place, avoiding the loosening risk caused by the bolts not being tightened.

[0020] The safety locking mechanism 6 includes a lifting frame 61. The lifting frame 61 is slidably connected to the inner side of the support side arm 51. An elevating end 62 is slidably connected to the inner side of the lifting frame 61. Wheel seat plates 63 are fixedly connected to the top and bottom sides of the support side arm 51. Two seat plate guide wheels 64 are installed on the side of each wheel seat plate 63. A bottom guide wheel 65 is rotatably connected to the inner bottom of the lifting frame 61. Two bottom side guide wheels 66 are installed on the bottom side of the lifting frame 61. Two top guide wheels 67 are installed at the top of the lifting frame 61. A metal strip 68 is arranged above each elevating end 62. A connecting bar 69 is fixedly connected to the middle of the metal strip 68. One end of the connecting bar 69 away from the metal strip 68 is fixedly connected to an elastic piece 610.

[0021] At both ends of the bottom side of the elastic sheet 610, there are clamping rods 611 hinged and connected. On the front and rear inner sides of the lifting frame 61, there are a plurality of equally spaced clamping grooves 612 opened. Inside the front and rear ends of the lifting frame 61, there are long sliding strips 613 slidably connected. At the upper and lower ends of each long sliding strip 613, there are long strip limit blocks 614 slidably connected. At the side of the bottom end of each long sliding strip 613, there is a handle rod 615 fixedly connected. Inside the bottom ends of the front and rear sides of the lifting frame 61, there is a toothed handle 616 rotatably connected.

[0022] Two vertical guide rods are fixedly connected to the inner side of the lifting frame 61, and the vertical guide rods are slidably connected to the lifting end 62. The metal strip 68 is fixedly connected to the steel cable 9, and the top end of the steel cable 9 is fixedly connected to the lifting end 62. Both of the clamping rods 611 slide through the inside of the lifting end 62. The long strip limit block 614 is fixedly connected to the lifting frame 61. The inner side of the support side arm 51 in contact with the lifting frame 61 is provided with equally spaced clamping teeth. A spring piece is arranged inside the lifting frame 61, and both ends of the spring piece are fixedly connected to the lifting frame 61 and the long sliding strip 613 respectively. The top end of the steel cable 9 is fixed on the lifting end 62. The steel cable 9 bypasses the top guide wheel 67 at the top of the lifting frame 61 from above the lifting end 62 and is led downward to the bottom guide wheel 66 installed on the lifting frame 61, and is led around the bottom guide wheel 65 at the bottom of the frame and then to the seat plate guide wheel 64 at the top of the support side arm 51 and bypasses the seat plate guide wheel 64 and is led to the seat plate guide wheel 64 at the bottom end of the support side arm 51. The steel cable 9 bypasses the seat plate guide wheel 64 at the bottom end of the support side arm 51 and is led to the cable winding roller 8 for winding. When the self-locking motor 3 is in the working state and winds the steel cables 9 on the left and right sides, at this time, the cable winding roller 8 rotates counterclockwise. The left steel cable 9 is wound from above the cable winding roller 8, and the right steel cable 9 is wound from below the cable winding roller 8. When the cable winding roller 8 winds, it pulls the steel cable 9 to bypass the bottom guide wheel 65 at the bottom of the lifting frame 61 and the bottom guide wheel 66 and uses the seat plate guide wheel 64 above the support side arm 51 as a fixed pulley, so that the lifting frame 61 is lifted upward and slides upward along the support side arm 51. At the same time, the steel cable 9 bypassing the bottom guide wheel 65 bypasses the top guide wheel 67, and uses the top guide wheel 67 as a fixed pulley to pull the lifting end 62 upward, so that the lifting end 62 slides upward along the vertical sliding rod inside the lifting frame 61 to achieve lifting. When the steel cable 9 breaks, at this time, the steel cable 9 cannot maintain a taut state, and the metal strip 68 loses the traction of the steel cable 9, which will cause the elastic piece 610 to recover its deformation. The elastic piece 610 that has recovered its deformation pushes the two adjacent clamping rods 611 to pass through the clamping groove 612 of the lifting frame 61, so that the relative position between the lifting end 62 and the lifting frame 61 becomes stationary. Subsequently, the clamping rod 611 passes through the clamping groove 612 and pushes the long sliding strip 613, so that the long sliding strip 613 slides along the long strip limit block 614 and compresses the spring piece. The movement of the long strip limit block 614 drives the connected handle rod 615, so that the handle rod 615 pushes the protruding part of the tooth clamping handle 616 to rotate and clamp on the clamping teeth inside the support side arm 51. The steel cable 9 is wound to lift the lifting frame 61 and the lifting end 62 synchronously, improving the lifting speed and increasing the lifting height. When carrying out operations such as masonry and curtain wall installation on different floors at the same time, the height of the scaffolding can be adjusted to match the construction progress, improving the construction efficiency. In addition, compared with the traditional non-self-locking scaffolding, the structure is locked to prevent the lifting frame 61 and the lifting end 62 from continuing to fall, which can completely avoid the risk of falling from a height, ensure the safety of workers and personnel below, and improve the safety performance.

[0023] The protective storage mechanism 7 includes a platform cross-frame 71. A platform board 72 is fixedly connected to the upper part of the platform cross-frame 71. Through-board grooves 73 are opened on both the front and rear sides of the platform cross-frame 71. Two short hinge rods 74 are slidably connected to both the front and rear ends of the platform cross-frame 71. The end of the short hinge rod 74 is hinged to a railing 75. A blocking plate 76 is fixedly connected to the side of the railing 75. A spring groove 77 is opened at the inner bottom end of the railing 75. A spring block 78 is slidably connected to the inner side of the spring groove 77. A elastic rod 710 is fixedly connected to the bottom surface of the spring block 78. A toggle rod 79 is fixedly connected to the side of the spring block 78.

[0024] The toggle rod 79 is slidably connected to the railing 75. The toggle rod 79 penetrates through the outer surface of the railing 75 from the inner side of the spring groove 77. A square block is provided at the end of the short hinge rod 74, and positioning holes for cooperating with the elastic rod 710 are opened on the upper side surfaces of the square block. An elastic spring is arranged inside the spring groove 77, and both ends of the elastic spring are fixedly connected to the spring block 78 and the railing 75 respectively. In the storage state, the short hinge rod 74 and the railing 75 are kept horizontal, and the toggle rod 79 connected to the spring block 78 is pushed by the elastic spring to be stuck in the square block at the end of the short hinge rod 74. The blocking plate 76 connected to the railing 75 is stored under the platform board 72 through the through-board groove 73 opened on the side surface of the platform cross-frame 71. At the same time, the length of the railing 75 at the rear side is less than that of the railing 75 at the front side, so that the two front and rear railings 75 are stored in a staggered manner during storage. In addition, when the two blocking plates 76 connected to the two railings 75 are stored, the two blocking plates 76 are attached to each other and stored in a vertically staggered manner. When the railing 75 is lifted or lowered on the platform cross-frame 71, the railing 75 is pulled out from the side surface of the platform cross-frame 71, and the railing 75 is flipped to be perpendicular to the short hinge rod 74. At this time, the toggle rod 79 connected to the spring block 78 is pushed by the elastic spring to be stuck in the square block at the end of the short hinge rod 74, so that the railing 75 plays a protective role. When the platform cross-frame 71 descends to be close to the ground, the railing 75 is flipped so that the edge of the railing 75 is placed on the support side arm 51, and the blocking plate 76 is used as a ramp pedal to assist in transporting materials or workers walking. When the whole scaffold needs to be stored, the platform cross-frame 71 is hooked on one end of the lifting end 62 and retracted, so that the platform cross-frame 71 rotates around the other hinged lifting end 62 to achieve storage. By flipping the railing 75, the railing 75 can be quickly retracted, reducing the occupied space and facilitating the movement or storage of the scaffold in a narrow area. At the same time, after the railing 75 is laid flat, it can be lapped into a ramp channel, which is convenient for the handling of trolleys, small equipment or building materials.

[0025] When the support frame 57 is folded and unfolded, the support frame 57 is manually flipped over to allow the support frame 57 to flip over, and the hinge block 56 fixed to the support frame 57 flips and rotates around the connected hinge seat 55. During the flipping process, the bottom of the support frame 57 applies pressure to the inclined surface of the limit block 511 through the limit block bar 512, so that the inclined surface of the limit block 511 is forced to push the connecting rod 510 to extend outward from the inside of the retracting rod block 59 and pull the contraction spring to deform under pressure. When the limit block 511 is in contact with the side of the support frame 57 and is no longer blocked by the limit block bar 512, the contraction spring inside the retracting rod block 59 is reset by elastic force and pulls the connecting rod 510 to retract into the retracting rod block 59. During the above movement, the connecting rod 510 pulls the limit block 511 to fit the limit block bar 512 and slide to the bottom end of the support frame 57. At this time, the support frames 57 on the left and right sides are kept perpendicular to the horizontal plane of the base frame 1 by flipping, which plays a role in quickly locking the support frame 57. When the support frame 57 is turned over by the fixed hinge block 56, the hinge connecting rod 58 connected to the hinge block 56 will pull the diagonal support rod 54 to move with the turning, and the movement of the diagonal support rod 54 will pull the push rod 53 to move and slide along the inner slide groove 52 of the supporting side arms 51 connected on both sides. The push rod 53 slides in the inner slide groove 52 to allow the supporting side arms 51 to quickly unfold around the connection of the base frame 1, and then the threaded support rod 514 is adjusted by turning the support rod knob 513 to extend downward along the connection of the supporting side arms 51 to contact the ground, providing a stable support structure. The stable support structure can evenly distribute the load and prevent tilting or collapse caused by local overload. At the same time, at high altitude or in bad weather such as strong wind and vibration, the scaffold with good stability can maintain its integrity and reduce accidents. In addition, the foldable scaffold does not need to be assembled one by one, and can be locked directly after it is unfolded, which reduces the construction time. During installation, it is automatically locked after it is in place through the snap-fit structure to avoid the risk of loosening caused by untightened bolts. The top end of the steel cable 9 is fixed on the lifting end 62. The steel cable 9 bypasses the top guide wheel 67 at the top of the lifting frame 61 above the lifting end 62 and is led downward to the bottom guide wheel 66 installed on the bottom side of the lifting frame 61. Then it bypasses the bottom guide wheel 65 at the bottom of the frame and is led to the seat plate guide wheel 64 at the top of the support side arm 51 and bypasses this seat plate guide wheel 64 and is led to the seat plate guide wheel 64 at the bottom end of the support side arm 51. The steel cable 9 bypasses the seat plate guide wheel 64 at the bottom end of the support side arm 51 and is led to the cable winding roller 8 for winding. When the self-locking motor 3 is in the working state and winds the steel cables 9 on both left and right sides, at this time, the cable winding roller 8 rotates counterclockwise. The left steel cable 9 is wound from above the cable winding roller 8, and the right steel cable 9 is wound from below the cable winding roller 8. When the cable winding roller 8 winds, it pulls the steel cable 9 to bypass the bottom guide wheel 65 and the bottom side guide wheel 66 at the bottom of the lifting frame 61 and uses the seat plate guide wheel 64 above the support side arm 51 as a fixed pulley, so that the lifting frame 61 is lifted upward and slides upward along the support side arm 51. At the same time, the steel cable 9 bypassing the bottom guide wheel 65 bypasses the top guide wheel 67 and uses the top guide wheel 67 as a fixed pulley to pull the lifting end 62 upward, so that the lifting end 62 slides upward along the vertical sliding rod inside the lifting frame 61 to achieve lifting. When the steel cable 9 breaks, at this time, the steel cable 9 cannot maintain a taut state. The metal strip 68 loses the traction of the steel cable 9, which will allow the elastic piece 610 to restore its deformation. The restored elastic piece 610 pushes the connected two-side clamping rods 611 to pass through the clamping slots 612 of the lifting frame 61, making the relative position between the lifting end 62 and the lifting frame 61 stationary. Subsequently, the clamping rod 611 passing through the clamping slot 612 pushes the long sliding bar 613, so that the long sliding bar 613 slides along the long strip limiting block 614 and presses the spring piece. The movement of the long strip limiting block 614 drives the connected handle lever 615, so that the handle lever 615 pushes the protruding part of the tooth clamping handle 616 to rotate and be stuck on the clamping teeth inside the support side arm 51. Through the winding of the steel cable 9, the lifting frame 61 and the lifting end 62 are lifted synchronously, improving the lifting speed and increasing the lifting height. When carrying out operations such as masonry and curtain wall installation on different floors simultaneously, the height of the scaffolding can be adjusted to match the construction progress, improving the construction efficiency. In addition, compared with the traditional non-self-locking scaffolding, through structural locking, it is possible to prevent the lifting frame 61 and the lifting end 62 from continuing to fall, completely avoiding the risk of high-altitude crashes, ensuring the safety of workers and people below, and enhancing safety; In the storage state, the short hinge rod 74 is horizontal with the railing 75, and the elastic spring is used to push the lever 79 connected to the elastic block 78 to be stuck in the square at the end of the short hinge rod 74. The blocking plate 76 connected to the railing 75 is stored under the platform plate 72 through the through plate groove 73 starting from the side of the platform cross frame 71. At the same time, the length of the railing 75 at the rear is less than that of the railing 75 at the front, and the front and rear railings 75 are stored in a staggered manner during storage. In addition, when the blocking plates 76 connected to the two railings 75 are stored, the two blocking plates 76 are attached to each other and stored in a staggered manner up and down in the storage state. When the railing 75 is lifted and lowered on the platform cross frame 71, the railing 75 is pulled out from the side of the platform cross frame 71, and the railing 75 is flipped to be perpendicular to the short hinge rod 74. At this time, the elastic spring pushes the lever 79 connected to the elastic block 78 to be stuck in the square at the end of the short hinge rod 74, so that the railing 75 plays a protective role. When the platform cross frame 71 descends to be close to the ground, the railing 75 is flipped so that the edge of the railing 75 is placed on the support side arm 51, and the blocking plate 76 is used as a ramp pedal to assist in transporting materials or workers walking. When the entire scaffolding needs to be stored, the platform cross frame 71 is hooked on one end of the lifting end 62 and retracted, so that the platform cross frame 71 is flipped around the other hinged lifting end 62 to achieve storage. By flipping the railing 75, the railing 75 can be quickly retracted, reducing the occupied space and facilitating the movement or storage of the scaffolding in a narrow area. At the same time, after the railing 75 is laid flat, it can be lapped into a ramp channel, which is convenient for the handling of handcarts, small equipment or building materials.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An adjustable scaffolding for construction and installation work, comprising a bottom frame (1), characterized in that: A protective shell (2) is arranged in the middle of the inner side of the chassis (1). A self-locking motor (3) is arranged on the front side of the protective shell (2). Four universal wheels (4) are arranged on the bottom side of the chassis (1). Two folding and locking mechanisms (5) are arranged above the protective shell (2). The folding and locking mechanism (5) includes four support side arms (51). The four support side arms (51) are divided into two groups of two and are respectively hinged to the front and rear sides of the chassis (1). An inner sliding groove (52) is formed on the side surface of each support side arm (51). A push rod (53) is slidably connected inside the inner sliding groove (52). A diagonal strut (54) is rotatably connected to the middle of the push rod (53). Hinge seat blocks (55) are fixedly connected to the inner sides of the left and right ends of the chassis (1). A hinge block (56) is rotatably connected to the outer side of one end of the hinge seat block (55) away from the chassis (1). A support frame (57) is fixedly connected to the end of the hinge block (56) away from the hinge seat block (55). A hinge connecting rod (58) is fixedly connected to the upper surface of the hinge block (56). Receiving rod blocks (59) are fixedly connected to the upper surfaces of the left and right ends of the chassis (1). Connecting rod blocks (510) are slidably connected inside the front and rear ends of the receiving rod blocks (59).

2. The adjustable scaffolding for construction and installation construction according to claim 1, characterized in that: A safety locking mechanism (6) is arranged above each folding and locking mechanism (5). A protective storage mechanism (7) is arranged between the two safety locking mechanisms (6). The output shaft of the self-locking motor (3) is fixedly connected to a cable winding roller (8). A steel cable (9) is wound around the outer side of the cable winding roller (8). A limit block (511) is fixedly connected to the end of the connecting rod block (510) away from the receiving rod block (59). A limit block bar (512) is fixedly connected to the inner side of the bottom end of the support frame (57). A threaded support rod (514) is threadedly connected to the end of the support side arm (51) away from the chassis (1). A support rod knob (513) is fixedly connected to the top end of the threaded support rod (514).

3. The adjustable scaffolding for construction and installation construction according to claim 2, wherein: The rear end of the protective shell (2) is fixedly connected to the chassis (1). The self-locking motor (3) is installed in the middle of the front side of the chassis (1). The hinge block (56) on the right side is twice the length of the hinge block (56) on the left side. The hinge connecting rod (58) is rotatably connected to the diagonal strut (54). A contraction spring is arranged inside the connecting rod block (510). The middle of the contraction spring is fixedly connected to the inner wall of the receiving rod block (59). The front and rear ends of the contraction spring are respectively fixedly connected to the two connecting rod blocks (510).

4. The adjustable scaffold for construction and installation according to claim 3, wherein: The safety locking mechanism (6) includes a lifting frame (61), the lifting frame (61) is slidably connected to the inner side of the support side arm (51), the inner side of the lifting frame (61) is slidably connected with a lifting end (62), both the top and bottom sides of the support side arm (51) are fixedly connected with wheel seat plates (63), two seat plate guide wheels (64) are installed on the side of each wheel seat plate (63), the bottom inner side of the lifting frame (61) is rotatably connected with a bottom guide wheel (65) of the frame, two bottom side guide wheels (66) are installed on the bottom side of the lifting frame (61), two top guide wheels (67) are installed on the top of the lifting frame (61), a metal strip (68) is arranged above each lifting end (62), a connecting rod (69) is fixedly connected to the middle of the metal strip (68), and an elastic piece (610) is fixedly connected to the end of the connecting rod (69) away from the metal strip (68).

5. An adjustable scaffolding for construction and installation work according to claim 4, characterized in that: Both bottom ends of the elastic piece (610) are hinged and connected with clamping rods (611), a plurality of equally spaced clamping grooves (612) are formed on the front and rear inner sides of the lifting frame (61), long sliding strips (613) are slidably connected to the inside of the front and rear ends of the lifting frame (61), long strip limit blocks (614) are slidably connected to the upper and lower ends of each long sliding strip (613), a handle rod (615) is fixedly connected to the bottom side of each long sliding strip (613), and a toothed handle (616) is rotatably connected to the inside of the bottom of the front and rear sides of the lifting frame (61).

6. The adjustable scaffolding for construction and installation work according to claim 5, characterized in that: Two vertical guide rods are fixedly connected to the inner side of the lifting frame (61), and the vertical guide rods are slidably connected with the lifting end (62), the metal strip (68) is fixedly connected with a steel cable (9), the top end of the steel cable (9) is fixedly connected with the lifting end (62), both clamping rods (611) slide through the inside of the lifting end (62), the long strip limit blocks (614) are fixedly connected with the lifting frame (61), equally spaced clamping teeth are formed on the inner side of the support side arm (51) in contact with the lifting frame (61), and a spring piece is arranged inside the lifting frame (61), and both ends of the spring piece are fixedly connected with the lifting frame (61) and the long sliding strip (613) respectively.

7. An adjustable scaffolding for construction and installation construction according to claim 6, characterized in that: The protection and storage mechanism (7) includes a platform cross frame (71), a platform plate (72) is fixedly connected to the platform cross frame (71), through plate grooves (73) are formed on both the front and rear sides of the platform cross frame (71), two short hinge rods (74) are slidably connected to both the front and rear ends of the platform cross frame (71), a railing (75) is hinged to the end of the short hinge rod (74), a blocking plate (76) is fixedly connected to the side of the railing (75), a spring groove (77) is formed at the bottom end inside the railing (75), a spring block (78) is slidably connected to the inside of the spring groove (77), an elastic rod (710) is fixedly connected to the bottom surface of the spring block (78), and a lever (79) is fixedly connected to the side of the spring block (78).

8. The adjustable scaffolding for construction and installation construction according to claim 7, wherein: The shift lever (79) is slidably connected to the railing (75). The shift lever (79) penetrates through the outer surface of the railing (75) from the inside of the spring groove (77). The end of the short hinge rod (74) is provided with a square block, and clamping holes for cooperating with the elastic rod (710) are formed in the upper side surfaces of the square block. An elastic spring is arranged inside the spring groove (77), and both ends of the elastic spring are fixedly connected to the elastic block (78) and the railing (75) respectively. One end of the platform cross frame (71) is provided with a hook-shaped structure, and the other end of the platform cross frame (71) is rotatably connected to the left lifting end (62).

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