A scaffold for construction engineering capable of being lifted, lowered and folded

Abstract

The invention discloses a scaffold for construction engineering that can be lifted, folded, and relates to the technical field of scaffolds. The scaffold comprises a base, wherein the four corners of the top of the base are fixedly connected with lower fixing sleeves, and the insides of the four lower fixing sleeves are fixedly connected with sliding rods. A supporting platform is arranged on the top of the base, and an intermediate platform is arranged between the base and the supporting platform. The scaffold for construction engineering that can be lifted, folded, and folded is conducive to folding the whole when not in use, so that the supporting platform is lowered to reduce the occupied space, and it is convenient to enter the room with a short door frame for use when folded, and the height of the supporting platform can be adjusted according to the working height, which is convenient for use, so that two placing plates are opened to both sides respectively, and the placing plates can be used as tool platforms for placing tools, and can also cushion falling objects to prevent them from hitting people, and at the same time cushion the tools to reduce the impact on the tools.

Description

Technical Field

[0001] The invention relates to the technical field of scaffolds, in particular to a scaffold for construction engineering which can be lifted, lowered and folded. Background Art

[0002] Scaffolding is a working platform set up to ensure the smooth progress of each construction process. According to the location of the scaffolding, it can be divided into external scaffolding and internal scaffolding; according to different materials, it can be divided into wooden scaffolding, bamboo scaffolding, and steel pipe scaffolding; according to the structural form, it can be divided into vertical pole scaffolding, bridge scaffolding, door scaffolding, suspended scaffolding, hanging scaffolding, cantilever scaffolding, and climbing scaffolding.

[0003] Since the 1990s, some domestic enterprises have introduced foreign technology and developed a variety of new scaffolding, such as pin-type scaffolding, CRAB module scaffolding, disc scaffolding, square tower scaffolding, and various types of climbing frames.

[0004] The existing coupler type steel pipe scaffolding needs to be manually erected at the construction site when in use. The erection process is slow and time-consuming. After the erection is completed, if the height needs to be adjusted, the support platform needs to be removed and reinstalled in another position. If the working position needs to be changed, such as moving to the interior of a building for construction, and some building door frames are not high enough for the scaffolding to pass through, the scaffolding needs to be dismantled and reinstalled after entering the room, which wastes time. In addition, the existing scaffolding is often accompanied by safety hazards such as tool drops, personnel falls, and scaffolding tilting and overturning when working. With the emergence of a large number of modern large-scale building systems in China, the coupler type steel pipe scaffolding can no longer meet the needs of the development of construction. It is imperative to vigorously develop and promote the application of new scaffolding. Summary of the invention

[0005] The purpose of the present invention is to provide a scaffold for construction projects that can be lifted and folded, so as to solve the problems in the prior art that the fastener-type steel pipe scaffold has a slow construction process, is time-consuming, is inconvenient to enter indoors and is not safe enough.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a scaffold for construction engineering that can be lifted, lowered and folded, comprising a base, four corners of the top of the base are fixedly connected to lower fixing sleeves, four lower fixing sleeves are fixedly connected to sliding rods, a supporting platform is arranged on the top of the base, an intermediate platform is arranged between the base and the supporting platform, connecting rods are fixedly connected to both sides of the bottom of the base, two connecting rods are hinged to hinge blocks at opposite ends, hydraulic cylinders are fixedly connected to the tops of the two hinge blocks, push blocks are fixedly connected to the output ends of the two hydraulic cylinders, one side of the two push blocks is fixedly connected to a rotating shaft, fixed frames are fixedly connected to both sides of the top of the base, and first hinges are hinged to the opposite ends of the two fixing frames. The two said first and second swing rods are respectively hinged on the top ends of the two first swing rods, and the two said second swing rods are respectively hinged on the diagonals on both sides of the bottom of the intermediate platform, and the two said rotating shafts respectively pass through the two first swing rods and are rotatably connected to the two first swing rods, and the fourth swing rods are respectively hinged on the diagonals on both sides of the bottom of the support platform, and the two said fourth swing rods are hinged on the bottom ends of the two third swing rods, and the two said third swing rods are respectively hinged on the diagonals on both sides of the top of the intermediate platform, and the first rotating rod is fixedly connected inside the top end of the second swing rod, and the first gear is fixedly connected to the outside of one end of the first rotating rod, and the second gear is meshingly connected.

[0007] Preferably, side plates are fixedly connected on both sides of the intermediate platform, two connecting blocks are fixedly connected on one side of the top and the other side of the bottom of the intermediate platform, guide rods are rotatably connected inside the two connecting blocks, and the opposite ends of the two guide rods are fixedly connected to first bevel gears, one end of one of the first rotating rods and one of the second rotating rods are fixedly connected to the second bevel gear, and the two first bevel gears are respectively meshed and connected with the two second bevel gears, and the two guide rods are driven to rotate by the first rotating rod and the second rotating rod when rotating.

[0008] Preferably, the outer sides of the two guide rods are sleeved with guide blocks, the outer sides of the two guide rods are opened with spiral grooves, the interiors of the two guide blocks are adapted to the spiral grooves, one side of the guide block is fixedly connected with a moving block, the moving block is sleeved on the outer sides of the side plates and is slidably connected with the side plates, the tops of the two guide blocks are fixedly connected with support plates, the outer sides of the two support plates are fixedly connected with placement plates, the two placement plates are respectively arranged on the upper and lower sides of the middle platform, the two placement plates are fixedly connected with sliders on the sides away from the two support plates, the tops and bottoms of the two side plates are respectively fixedly connected with slide rails, and the two sliders are slidably connected to the insides of the two slide rails.

[0009] Preferably, railings are fixedly installed on the four sides of the top of the support platform by bolts, the four corners of the support platform are fixedly connected with upper fixing sleeves, the tops of the four upper fixing sleeves are fixedly connected with sliding sleeves, the four lower fixing sleeves respectively penetrate the four upper fixing sleeves and are slidably connected with the four upper fixing sleeves, and springs are sleeved on the outer sides of the four sliding rods, and the two ends of the springs are respectively in contact with the lower fixing sleeve and the upper fixing sleeve, so as to support and buffer the upper fixing sleeve and the support platform.

[0010] Preferably, the four sliding rods respectively pass through the four sliding sleeves and are slidably connected to the four sliding sleeves, the top ends of the four sliding rods are fixedly connected to pistons, the four pistons are respectively slidably connected to the inside of the four sliding sleeves and adapt to the four sliding sleeves, the inside of the four sliding sleeves are filled with buffer solutions, and the inside of the four pistons are provided with multiple through holes in a circular array, so that the sliding rods drive the pistons to slide inside the sliding sleeves, forming a damping effect and improving the buffering capacity.

[0011] Preferably, baffles are fixedly connected to the four sides of the top of the support platform, and rotating blocks are hinged at both ends of the baffles located on the front and rear sides. One side of the two rotating blocks is fixedly connected to a sleeve, and the inside of the two sleeves is rotatably connected to a rotating sleeve, the rear ends of the two sleeves are fixedly connected to forward and reverse motors, and the output ends of the two forward and reverse motors are respectively fixedly connected to the two rotating sleeves.

[0012] Preferably, the two rotating sleeves are fixedly connected with sliding bars on both sides, the two rotating sleeves are slidably connected with threaded rods on both sides, the two threaded rods are opened with transverse grooves on both sides, the two sliding bars are respectively slidably connected to the two transverse grooves, the front ends of the two threaded rods are fixedly connected with hanging plates, the front ends of the two sleeves are fixedly connected with threaded sleeves, the two threaded rods respectively penetrate the two threaded sleeves and are threadedly connected with the two threaded sleeves, the threaded rods are limited by the threaded sleeves, so that the threaded rods can move horizontally when rotating.

[0013] Preferably, support blocks are fixedly connected at both ends of the baffle, a dual-axis motor is fixedly connected inside the baffle, screw rods are fixedly connected at both output ends of the dual-axis motor, one end of the two screw rods are rotatably connected to the two support blocks respectively, the thread directions of the two screw rods are set to be opposite, and the two screw rods are driven to rotate by starting the dual-axis motor, and the two movable plates are driven to move in the opposite direction.

[0014] Preferably, the outer sides of the two screw rods are threadedly connected to a movable plate, and one side of the two movable plates is hinged with a pull rod, and the two pull rods are hinged to two sleeves at one end away from the movable plate, so that when the movable plate moves, the pull rod is pulled to move and the sleeve is driven to deflect.

[0015] Preferably, the four corners of the base are fixedly connected with legs, and the bottom ends of the four legs are fixedly connected with universal wheels to facilitate movement. At the same time, the universal wheels have a self-locking function and can remain stable during operation.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present application causes the first swing arm and the second swing arm to gradually become a vertical state, and at the same time, the second swing arm drives the first rotating arm to rotate when deflected, and at the same time, the first rotating arm drives the first gear to rotate, and the first gear drives the second gear and the second rotating arm to rotate in the opposite direction when rotating, so that the second rotating arm drives the third swing arm to rotate in the opposite direction, thereby driving the third swing arm and the second gear to also deflect upward, so as to lift the support platform upward, so as to control the height of the support platform, which is conducive to folding the whole when not in use, so that the support platform can be lowered to reduce the occupied space, and at the same time, it is convenient to enter the room with a short door frame for use when folded, and the height of the support platform can be adjusted according to the working height, which is easy to use.

[0018] 2. The present application enables the support plate to drive the placement plate to move, and at the same time, the first rotating rod drives another placement plate to move when it rotates, and the two placement plates move in opposite directions, so that the two placement plates are opened to both sides respectively, and the placement plate can be used as a tool platform for placing tools. A partition is set above the placement plate, or a tool box is combined with the placement plate. After the placement plate is opened, it is convenient for the staff to take the tools. At the same time, the placement plate can also be used as a protective plate to prevent falling. If a tool accidentally falls while the staff is working, the placement plate can cushion the falling object to prevent it from hitting people, and at the same time cushion the tools to reduce the impact on the tools.

[0019] 3. In the present application, when the support platform is descending, the upper fixed sleeve and the sliding sleeve will be driven to descend. At the same time, when the sliding sleeve is descending, the sliding sleeve and the piston will move relative to each other. The sliding sleeve is filled with a buffer solution, so that the buffer solution inside the sliding sleeve flows through multiple through holes inside the piston to form a damping effect. In this way, the upper fixed sleeve and the support platform are supported and buffered in cooperation with the buffering capacity of the spring, thereby improving the stability of the upper fixed sleeve and the support platform when moving, and thereby improving the safety of the support platform when lifting and lowering.

[0020] 4. In the present application, when the threaded rod is rotated, it moves horizontally, so that the threaded rod drives the hanging plate to move, and the extension distance of the hanging plate is adjusted, so that the hanging plate can be fitted against the wall, support the device and improve stability. The angle of the sleeve can also be adjusted so that the two sleeves drive the two threaded rods to deflect, so that the two threaded rods drive the two hanging plates to be hung with the columns of the building or other supporting structures, so that the two hanging plates sandwich the building structure in the middle, thereby supporting the device, improving the stability of the device during operation, preventing tilting and tipping, and improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a front view structural schematic diagram of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the swing rod of the present invention;

[0024] Figure 4 It is a side view structural schematic diagram of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the fixing frame of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the intermediate platform of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the guide rod of the present invention;

[0028] Figure 8 It is a structural schematic diagram of the railing of the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the sliding sleeve of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the piston of the present invention;

[0031] Fig.11 It is a structural schematic diagram of the baffle of the present invention;

[0032] Fig.12 It is a structural schematic diagram of the threaded rod of the present invention;

[0033] Fig.13 It is a structural schematic diagram of the support platform of the present invention;

[0034] Fig.14 It is a structural schematic diagram of the base of the present invention.

[0035] Numbers in the figure: 1, base; 2, lower fixing sleeve; 3, slide rod; 4, upper fixing sleeve; 5, support platform; 6, middle platform; 7, connecting rod; 8, fixing frame; 9, hinge block; 10, hydraulic cylinder; 11, push block; 12, rotating shaft; 13, first swing rod; 14, second swing rod; 15, first rotating rod; 16, second rotating rod; 17, first gear; 18, third swing rod; 19, second gear; 20, fourth swing rod; 21, side plate; 22, slide rail; 23, slider; 24, connecting block; 25, guide rod; 26 , guide block; 27, moving block; 28, support plate; 29, placement plate; 30, sliding sleeve; 32, spring; 33, piston; 34, baffle; 35, rotating block; 36, sleeve; 37, threaded rod; 38, forward and reverse motor; 39, rotating sleeve; 40, slide bar; 41, horizontal groove; 42, threaded sleeve; 43, hanging plate; 44, support block; 45, screw rod; 46, dual-axis motor; 47, moving plate; 48, pull rod; 49, railing; 50, support leg; 51, universal wheel; 52, first bevel gear; 53, second bevel gear. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Example: Figure 1-Figure 14As shown, the present invention provides a technical solution for a scaffold for construction engineering that can be lifted and folded, including a base 1, the four corners of the base 1 are fixedly connected with legs 50, the bottom ends of the four legs 50 are fixedly connected with universal wheels 51, which are easy to move, and the universal wheels 51 have a self-locking function, so that they can remain stable during work, the four corners of the top of the base 1 are fixedly connected with lower fixing sleeves 2, the four lower fixing sleeves 2 are fixedly connected with sliding rods 3 inside, a supporting platform 5 is arranged on the top of the base 1, and an intermediate platform 6 is arranged between the base 1 and the supporting platform 5, connecting rods 7 are fixedly connected to both sides of the bottom of the base 1, and hinge blocks 9 are hinged at the opposite ends of the two connecting rods 7, and hydraulic cylinders 10 are fixedly connected to the tops of the two hinge blocks 9, and push blocks 11 are fixedly connected to the output ends of the two hydraulic cylinders 10, and one side of the two push blocks 11 is fixedly connected to a rotating shaft 12, and the top of the base 1 is fixedly connected to both sides. There is a fixed frame 8, and the opposite ends of the two fixed frames 8 are hinged with a first swing rod 13, and the tops of the two first swing rods 13 are hinged with a second swing rod 14, and the tops of the two second swing rods 14 are respectively hinged with the diagonals on both sides of the bottom of the intermediate platform 6, and the two rotating shafts 12 respectively penetrate the two first swing rods 13 and are rotatably connected with the two first swing rods 13, and the fourth swing rods 20 are hinged at the diagonals on both sides of the bottom of the supporting platform 5, and the bottom ends of the two fourth swing rods 20 are hinged with a third swing rod 18, and the bottom ends of the two third swing rods 18 are respectively hinged with the diagonals on both sides of the top of the intermediate platform 6, and the first rotating rod 15 is fixedly connected inside the top of the second swing rod 14, and the first gear 17 is fixedly connected to the outside of one end of the first rotating rod 15, and the second rotating rod 16 is fixedly connected inside the bottom end of the third swing rod 18, and the second gear 19 is fixedly connected to the outside of one end of the second rotating rod 16, and the first gear 17 and the second gear 19 are meshed.

[0038] The middle platform 6 is fixedly connected to side plates 21 on both sides, and two connecting blocks 24 are fixedly connected to one side of the top and the other side of the bottom of the middle platform 6. The two connecting blocks 24 are rotatably connected to guide rods 25 inside. The opposite ends of the two guide rods 25 are fixedly connected to first bevel gears 52. One end of one of the first rotating rods 15 and one of the second rotating rods 16 is fixedly connected to the second bevel gear 53. The two first bevel gears 52 are respectively meshed and connected with the two second bevel gears 53. The two guide rods 25 are driven to rotate by the first rotating rod 15 and the second rotating rod 16 when rotating. Guide blocks 26 are sleeved on the outer sides of the two guide rods 25. A spiral groove is provided on the outer side of the guide rod 25, and the interior of the two guide blocks 26 is adapted to the spiral groove. A moving block 27 is fixedly connected to one side of the guide block 26, and the moving block 27 is sleeved on the outer side of the side plate 21 and is slidably connected to the side plate 21. The tops of the two guide blocks 26 are fixedly connected to support plates 28, and the outer sides of the two support plates 28 are fixedly connected to placement plates 29. The two placement plates 29 are respectively arranged on the upper and lower sides of the middle platform 6, and the two placement plates 29 are fixedly connected to the sliders 23 on the sides away from the two support plates 28. The tops and bottoms of the two side plates 21 are respectively fixedly connected to slide rails 22, and the two sliders 23 are slidably connected to the insides of the two slide rails 22.

[0039] The four sides of the top of the support platform 5 are fixed with railings 49 by bolts, the four corners of the support platform 5 are fixedly connected with an upper fixing sleeve 4, the tops of the four upper fixing sleeves 4 are fixedly connected with sliding sleeves 30, the four lower fixing sleeves 2 respectively penetrate the four upper fixing sleeves 4 and are slidably connected to the four upper fixing sleeves 4, the outer sides of the four sliding rods 3 are sleeved with springs 32, the two ends of the springs 32 are respectively in contact with the lower fixing sleeve 2 and the upper fixing sleeve 4, support and buffer the upper fixing sleeve 4 and the support platform 5, the four sliding rods 3 respectively penetrate the four sliding sleeves 30 and are slidably connected to the four sliding sleeves 30, the tops of the four sliding rods 3 are fixedly connected with pistons 33, the four pistons 33 are respectively slidably connected to the inside of the four sliding sleeves 30 and adapted to the four sliding sleeves 30, the inside of the four sliding sleeves 30 are filled with buffers, and the inside of the four pistons 33 are provided with a plurality of through holes in an annular array, so that the sliding rod 3 drives the piston 33 to slide inside the sliding sleeve 30, forming a damping effect and improving the buffering capacity.

[0040] Baffles 34 are fixedly connected to the four sides of the top of the support platform 5, and rotating blocks 35 are hinged at both ends of the baffles 34 located on the front and rear sides. Sleeves 36 are fixedly connected to one side of the two rotating blocks 35. Rotating sleeves 39 are rotatably connected to the two sleeves 36. The rear ends of the two sleeves 36 are fixedly connected to forward and reverse motors 38. The output ends of the two forward and reverse motors 38 are respectively fixedly connected to the two rotating sleeves 39. Slide bars 40 are fixedly connected to the two rotating sleeves 39 on both sides. Threaded rods 37 are slidably connected to the two rotating sleeves 39. Transverse grooves 41 are opened on both sides of the two threaded rods 37. The two slide bars 40 are slidably connected to the inside of the two transverse grooves 41 respectively. The front ends of the two threaded rods 37 are fixedly connected to hanging plates 43. The front ends of the two sleeves 36 are fixedly connected to threaded sleeves 42. The two threaded rods 37 pass through the two threaded sleeves 42 respectively and are connected to the two The threaded sleeves 42 are threadedly connected, and the threaded rod 37 is limited by the threaded sleeves 42, so that the threaded rod 37 can move horizontally when rotating. Support blocks 44 are fixedly connected to both ends of the baffle 34, and a double-axis motor 46 is fixedly connected to the baffle 34. Lead screws 45 are fixedly connected to the two output ends of the double-axis motor 46. One end of the two lead screws 45 is respectively rotatably connected to the two support blocks 44, and the thread directions of the two lead screws 45 are set to be opposite. The double-axis motor 46 is started to drive the two lead screws 45 to rotate, and drive the two moving plates 47 to move in the opposite direction. The outer sides of the two lead screws 45 are threadedly connected to the moving plates 47, and one side of the two moving plates 47 is hinged with pull rods 48. The two pull rods 48 are hinged to the two sleeves 36 at one end away from the moving plate 47, so that when the moving plate 47 moves, the pull rod 48 is pulled to move, and the sleeve 36 is driven to deflect.

[0041] When the present solution is in use, the universal wheel 51 at the bottom of the base 1 is moved to move the base 1 to a specified position, and the hydraulic cylinder 10 is controlled to start, so that the hydraulic cylinder 10 drives the push block 11 to lift, so that the push block 11 and the rotating shaft 12 push the first swing rod 13 to deflect upward, and when the first swing rod 13 deflects upward, it drives the second swing rod 14 to deflect, and the first swing rod 13 and the second swing rod 14 move up at the same time. Since the middle platform 6 limits the second swing rod 14, the first swing rod 13 and the second swing rod 14 gradually become vertical. At the same time, the second swing rod 14 drives the first rotating rod 15 to rotate when deflecting, and the first rotating rod 15 drives the first gear 17 to rotate. When the first gear 17 rotates, it drives the second gear 19 and the second rotating rod 16 to rotate in the opposite direction, so as to achieve the above-mentioned effect. The second rotating rod 16 drives the third swing rod 18 to rotate in the opposite direction, thereby driving the third swing rod 18 and the second gear 19 to deflect upward, so as to lift the support platform 5 upward, so as to control the height of the support platform 5, which is conducive to folding the whole when not in use, so that the support platform 5 can be lowered to reduce the occupied space, and it is convenient to enter the room with a short door frame when folded. At the same time, the height of the support platform 5 can be adjusted according to the working height, which is convenient for use. When using this solution, the staff can enter the top of the support platform 5 in advance, and then lift the person when the support platform 5 is lifted, or an escalator can be installed on the side of the support platform 5 in an articulated manner. When the support platform 5 is lifted, it will drive the escalator to rise. A separation solution can also be adopted to set up a separate escalator for climbing.

[0042] When the first swing arm 13 is driven by the hydraulic cylinder 10 to deflect, the second swing arm 14 is driven to deflect, so that the second swing arm 14 drives the first rotating rod 15 and the first gear 17 to rotate, and the first gear 17 drives the second gear 19 and the second rotating rod 16 to rotate. When the second rotating rod 16 rotates, it drives the first bevel gear 52 to rotate, so that the first bevel gear 52 drives the guide rod 25 to rotate when rotating, and when the guide rod 25 rotates, it drives the guide block 26 and the support plate 28 to move horizontally, and then the guide block 26 drives the moving block 27 to slide on the outside of the side plate 21, and the guide block 26 is limited to maintain the stability of the guide block 26. When the guide block 26 moves, it also drives the support plate 28 to move, and makes The support plate 28 drives the placement plate 29 to move, and at the same time, the first rotating rod 15 drives the other placement plate 29 to move when it rotates, and the two placement plates 29 move in opposite directions, so that the two placement plates 29 are opened to both sides respectively. The placement plate 29 can be used as a tool platform for placing tools. A partition is set above the placement plate 29, or a tool box is combined with the placement plate 29. After the placement plate 29 is opened, it is convenient for the staff to take the tools. At the same time, the placement plate 29 can also be used as a protective plate to prevent falling. If a tool falls accidentally while the staff is working, the placement plate 29 can cushion the falling object to prevent it from hitting people, and at the same time cushion the tools to reduce the impact on the tools.

[0043] When the support platform 5 descends, it will drive the upper fixed sleeve 4 and the sliding sleeve 30 to descend. At the same time, when the sliding sleeve 30 descends, it will cause the sliding sleeve 30 and the piston 33 to move relative to each other. The sliding sleeve 30 is filled with a buffer solution, so that the buffer solution inside the sliding sleeve 30 flows through the multiple through holes inside the piston 33 to form a damping effect. In this way, the upper fixed sleeve 4 and the support platform 5 are supported and buffered in cooperation with the buffering capacity of the spring 32, thereby improving the stability of the upper fixed sleeve 4 and the support platform 5 when moving, and further improving the safety of the support platform 5 when lifting.

[0044] When the support platform 5 is lifted, the double-axis motor 46 is started to drive the two screw rods 45 to rotate, so that the two screw rods 45 drive the two moving plates 47 to move in the opposite direction when rotating, so that the two moving plates 47 drive the pull rod 48 to move, and the pull rod 48 pushes the sleeve 36 to deflect, so that the angle of the sleeve 36 corresponds to the wall surface of the current working area, and then the forward and reverse motors 38 are started to drive the rotating sleeve 39 to rotate, so that the rotating sleeve 39 drives the slide bar 40 to rotate, and the slide bar 40 limits the horizontal groove 41, thereby driving the threaded rod 37 to rotate synchronously, and the threaded rod 37 slides inside the rotating sleeve 39 and rotates with the threaded rod 37. The sleeve 42 is threadedly connected, and when the threaded rod 37 moves horizontally while rotating, the threaded rod 37 drives the hanging plate 43 to move. By adjusting the extension distance of the hanging plate 43, the hanging plate 43 can be fitted against the wall, thereby supporting the device and improving stability. The angle of the sleeve 36 can also be adjusted so that the two sleeves 36 drive the two threaded rods 37 to deflect, so that the two threaded rods 37 drive the two hanging plates 43 to be hung with the columns of the building or other structures that can provide support, so that the two hanging plates 43 sandwich the building structure in the middle, thereby supporting the device, improving the stability of the device during operation, preventing tilting and tipping, and improving safety.

[0045] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A scaffold for construction engineering that can be lifted, lowered, or folded, comprising a base (1), characterized in that: The four corners of the top of the base (1) are fixedly connected to lower fixing sleeves (2), and the four lower fixing sleeves (2) are fixedly connected to sliding rods (3) inside. A supporting platform (5) is provided on the top of the base (1), and an intermediate platform (6) is provided between the base (1) and the supporting platform (5). Connecting rods (7) are fixedly connected to both sides of the bottom of the base (1), and two connecting rods (7) are hinged to hinge blocks (9) at opposite ends. The tops of the two hinge blocks (9) are fixedly connected to hydraulic cylinders (10), and the output ends of the two hydraulic cylinders (10) are fixedly connected to push blocks (11). The two push blocks (11) are fixedly connected to a rotating shaft (12) on one side, the top of the base (1) is fixedly connected to a fixing frame (8) on both sides, the opposite ends of the two fixing frames (8) are hinged to a first swing rod (13), the tops of the two first swing rods (13) are hinged to a second swing rod (14), the tops of the two second swing rods (14) are respectively hinged to the diagonal positions on both sides of the bottom of the intermediate platform (6), the two rotating shafts (12) respectively penetrate the two first swing rods (13) and are rotatably connected to the two first swing rods (13), the bottom of the support platform (5) is hinged to a second swing rod (14) on both sides of the diagonal positions. The fourth swing rods (20) are hinged at their bottom ends to the third swing rods (18), and the bottom ends of the second third swing rods (18) are hinged to the diagonal positions on both sides of the top of the intermediate platform (6) respectively; the top of the second swing rod (14) is fixedly connected to the first rotating rod (15), and the first gear (17) is fixedly connected to the outside of one end of the first rotating rod (15); the bottom of the third swing rod (18) is fixedly connected to the second rotating rod (16), and the second gear (19) is fixedly connected to the outside of one end of the second rotating rod (16); the first gear (17) and the second gear (19) are fixedly connected to each other. ) are meshingly connected, both sides of the intermediate platform (6) are fixedly connected to side plates (21), one side of the top and the other side of the bottom of the intermediate platform (6) are fixedly connected to two connection blocks (24), the two connection blocks (24) are rotatably connected to guide rods (25) inside, the two guide rods (25) are fixedly connected to first bevel gears (52) at opposite ends, one end of one of the first rotating rods (15) and one end of one of the second rotating rods (16) are fixedly connected to second bevel gears (53), and the two first bevel gears (52) are meshingly connected to the two second bevel gears (53) respectively.

2. The scaffolding for construction projects that can be lifted and folded according to claim 1 is characterized in that: The four sides of the top of the support platform (5) are fixedly mounted with railings (49) by means of bolts, the four corners of the support platform (5) are fixedly connected with upper fixing sleeves (4), the tops of the four upper fixing sleeves (4) are fixedly connected with sliding sleeves (30), the four lower fixing sleeves (2) respectively penetrate the four upper fixing sleeves (4) and are slidably connected with the four upper fixing sleeves (4), and the outer sides of the four sliding rods (3) are sleeved with springs (32), and the two ends of the springs (32) are respectively in contact with the lower fixing sleeves (2) and the upper fixing sleeves (4).

3. The scaffolding for construction engineering that can be lifted and folded according to claim 1 is characterized in that: The four sliding rods (3) respectively penetrate the four sliding sleeves (30) and are slidably connected to the four sliding sleeves (30); the top ends of the four sliding rods (3) are fixedly connected to pistons (33); the four pistons (33) are slidably connected to the inside of the four sliding sleeves (30) and are adapted to the four sliding sleeves (30); the inside of the four sliding sleeves (30) are filled with buffer solutions; and the inside of the four pistons (33) are provided with a plurality of through holes in a ring array.

4. The scaffolding for construction projects capable of lifting and folding according to claim 1 is characterized in that: The four sides of the top of the support platform (5) are fixedly connected to baffles (34), both ends of the baffles (34) located at the front and rear sides are hinged with rotating blocks (35), one side of the two rotating blocks (35) is fixedly connected to a sleeve (36), the inside of the two sleeves (36) is rotatably connected to a rotating sleeve (39), the rear ends of the two sleeves (36) are fixedly connected to forward and reverse motors (38), and the output ends of the two forward and reverse motors (38) are fixedly connected to the two rotating sleeves (39) respectively.

5. The scaffolding for construction projects capable of lifting and folding according to claim 4 is characterized in that: Slide bars (40) are fixedly connected to both sides of the two rotating sleeves (39), threaded rods (37) are slidably connected to both sides of the two rotating sleeves (39), transverse grooves (41) are formed on both sides of the two threaded rods (37), the two slide bars (40) are slidably connected to the inside of the two transverse grooves (41), the front ends of the two threaded rods (37) are fixedly connected to hanging plates (43), the front ends of the two sleeves (36) are fixedly connected to threaded sleeves (42), and the two threaded rods (37) respectively penetrate the two threaded sleeves (42) and are threadedly connected to the two threaded sleeves (42).

6. The scaffolding for construction engineering that can be lifted and folded according to claim 5 is characterized in that: Both ends of the baffle (34) are fixedly connected to support blocks (44), a dual-axis motor (46) is fixedly connected to the baffle (34), both output ends of the dual-axis motor (46) are fixedly connected to screw rods (45), one end of the two screw rods (45) is rotatably connected to the two support blocks (44) respectively, and the thread directions of the two screw rods (45) are arranged to be opposite.

7. The scaffolding for construction projects capable of lifting and folding according to claim 6, characterized in that: The outer sides of the two screw rods (45) are both threadedly connected to a moving plate (47), one side of the two moving plates (47) is hinged with a pull rod (48), and the ends of the two pull rods (48) away from the moving plate (47) are respectively hinged to two sleeves (36).

8. The scaffolding for construction engineering that can be lifted and folded according to claim 1 is characterized in that: The four corners of the base (1) are fixedly connected to supporting legs (50), and the bottom ends of the four supporting legs (50) are fixedly connected to universal wheels (51).

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