Portable scaffold for construction work

Abstract

The utility model provides a portable scaffold for construction engineering relates to the technical field of scaffold for construction engineering, include: first side lifting part, second side lifting part, lifting board part, first swing rod, first side lifting part and second side lifting part same structure, first side lifting part and second side lifting part symmetry distribution, first swing rod has two, two first swing rod one end respectively with first side lifting part L shaped support both sides are connected, two first swing rod other end respectively with two second swing rod one end rotation connection, this equipment can carry out simple folding, reduce the floor area, and this equipment below is equipped with universal wheel, can be convenient for manual arbitrary movement equipment, simultaneously, this equipment is equipped with protective net, prevents manual in the course of operation, because of inattentive drop, reduces the risk that personnel has the accident, this equipment can also carry out secondary lifting, utilizes simple structure to increase lifting height, has improved equipment application range.

Description

Technical Field

[0001] This utility model relates to the field of scaffolding technology for construction engineering, and in particular to a portable scaffolding for construction engineering. Background Technology

[0002] Scaffolding is an essential temporary support structure in construction projects, providing a safe and stable working platform for workers to perform high-altitude operations such as masonry, decoration, and equipment installation. Traditional scaffolding often uses steel pipe coupler or portal frame structures, which have strong load-bearing capacity and high stability. However, early steel pipe coupler scaffolding consisted of a large number of steel pipes and connectors, requiring manual assembly of each pipe, which was time-consuming, labor-intensive, and demanded high levels of worker skill. If erected improperly, it could easily lead to structural instability and safety hazards. In addition, traditional scaffolding is bulky, resulting in high transportation and storage costs, making it difficult to adapt to the needs of construction projects that require frequent site changes.

[0003] Therefore, there is a need to invent a portable scaffold for construction projects. This equipment can be easily folded without assembly, reducing the floor space required. It is also equipped with casters at the bottom, making it easy for workers to move the equipment. In addition, the equipment is equipped with a safety net to prevent workers from falling due to negligence during operation, reducing the risk of accidents. The equipment can also be lifted twice, using a simple structure to increase the lifting height, thus expanding the applicability of the equipment. Summary of the Invention

[0004] To address the aforementioned technical problems, this utility model provides a portable scaffolding for construction engineering, thereby solving the problems.

[0005] The technical solution used in this utility model is: a portable scaffold for construction engineering, comprising: a first side lifting part, a second side lifting part, a lifting plate part, a first swing rod and a second swing rod;

[0006] The first side lifting section and the second side lifting section have the same structure and are symmetrically distributed. There are two first swing rods, one end of which is connected to both sides of the L-shaped bracket of the first side lifting section, and the other end of which is rotatably connected to one end of two second swing rods. There are also two second swing rods, the other end of which is connected to both sides of the L-shaped bracket of the second side lifting section. The lifting plate is slidably installed in the middle of the first side lifting section and the second side lifting section.

[0007] The first side lifting section also includes: an L-shaped bracket, motor I, pulleys, a long support rod, a roller, and motor II;

[0008] The L-shaped bracket is equipped with two motors I by screws and nuts. The shafts of the two motors I are rotatably connected to one end of the two first swing rods, respectively. There are two pulleys, which are rotatably mounted on two long support rods, which are fixedly mounted on the L-shaped bracket. There are two reels, whose shafts are fixedly connected to each other, and which are rotatably mounted on the frame of the L-shaped bracket. Motor II is mounted on the frame of the L-shaped bracket by screws and nuts. The shaft of motor II is fixedly connected to the shaft of one of the reels. The steel wire ropes on the two reels pass through the pulleys and are connected to one of the limiting sliders.

[0009] Preferably, the first side lifting part further includes: a square support plate I, a limiting slide frame, a groove plate I, a groove plate II, a lead screw moving mechanism, and casters;

[0010] Four casters are fixedly installed on the lower end face of the square support plate I; the limiting slide frame is fixedly installed on the L-shaped bracket, and one end of the groove of the limiting slide frame is slidably installed in the slide groove of the groove plate II. The other end of the groove plate II is rotatably installed on the square support plate I. The intermediate shaft of the groove plate II is rotatably connected to the intermediate shafts of the two groove plates I. There are two groove plates I. One end of the two groove plates I is rotatably installed on the L-shaped bracket, and the other end of the two groove plates I is respectively connected to the slider of the two lead screw moving mechanisms.

[0011] Preferably, there are two lead screw moving mechanisms. The bracket of each lead screw moving mechanism is fixedly installed on the square support plate I. The lead screws of the two lead screw moving mechanisms are connected to the pulleys by belts. A motor is fixedly installed on the bracket of one of the lead screw moving mechanisms, and the shaft of the motor is fixedly connected to the shaft of the lead screw of this lead screw moving mechanism.

[0012] Preferably, the lifting plate part includes: a square support plate II, a limiting slider, a supporting base plate, an electric cylinder, a sliding block, a rectangular plate, a motor III, a square base plate, and a protective mechanism;

[0013] There are two square support plates II, each with two fixedly installed limiting sliders. The two limiting sliders on one square support plate II are slidably installed in the grooves of the L-shaped bracket in the first side lifting section, while the two limiting sliders on the other square support plate II are slidably installed in the grooves of the L-shaped bracket in the second side lifting section. There are also two sliding blocks, each slidably installed on a support base plate on the same side. Each sliding block is fixedly connected to the telescopic rod ends of two electric cylinders on the same side. There are four electric cylinders, with the cylinder bodies of two of them fixedly installed on the side of a support base plate. The telescopic rod ends of these two electric cylinders are connected to the telescopic rod ends of two electric cylinders on the same side. The sliding plug on one side is fixedly connected, and the cylinder bodies of the other two electric cylinders are fixedly installed on the side of another supporting base plate. The telescopic rod ends of these two electric cylinders are fixedly connected to the sliding plug on the same side. There are two supporting base plates, and each of the two supporting base plates is fixedly connected to a square support plate II on the same side. A motor III is fixedly installed on the side of each supporting base plate. The shaft of each motor III is fixedly connected to a rectangular plate on the same side. There are two rectangular plates, and each of the two rectangular plates is rotatably installed on a supporting base plate on the same side. Each rectangular plate is fixedly connected to a square base plate. There are four sets of protective drums, and a protective mechanism is fixedly installed on both sides of each square base plate.

[0014] Preferably, the rectangular plate is provided with a groove, and the groove intermittently engages with the sliding block;

[0015] Preferably, there are two square base plates, one of which has a round hole on its side and the other has a round rod on its side.

[0016] Preferably, the protective mechanism includes: a long connecting rod I, a long connecting rod II, and a swing mechanism;

[0017] The long connecting rod I is fixedly installed on the square base plate, and a shielding net is connected between the long connecting rod I and the long connecting rod II; there are two sets of swing mechanisms, which are respectively installed on the long connecting rod I and the long connecting rod II.

[0018] Preferably, the swing mechanism includes: a motor IV, a swing rod I, and a swing rod II;

[0019] The motor IV is fixedly installed on the long connecting rod II. The motor IV is fixedly connected to one end of the swinging long rod II. One end of the swinging long rod II is rotatably connected to one end of the swinging long rod I. The other end of the swinging long rod I is rotatably installed on the long connecting rod I.

[0020] The advantages of this utility model compared with the prior art are:

[0021] 1. This equipment can be easily folded to reduce its footprint, and it is equipped with casters for easy manual movement. Additionally, it features a safety net to prevent workers from falling during operation, reducing the risk of accidents. Furthermore, the equipment can be raised a second time, using its simple structure to increase the lifting height and broaden its applicability.

[0022] This equipment uses motor IV to drive the swing rods II and I to rotate, which in turn moves the long connecting rod II upward, thereby lifting the protective net and reducing the risk of workers falling from heights.

[0023] This equipment uses a motor on one of the lead screw moving mechanism brackets to drive the lead screw of the lead screw moving mechanism to rotate, thereby causing one end of the two channel plates I to slide, which in turn causes one end of the channel plate II to slide on the limiting slide frame, thereby causing the other ends of channel plates II and I to rotate. This allows channel plates II and I to lift the L-shaped bracket, achieving a secondary lifting, which greatly increases the applicability of the equipment. Attached Figure Description

[0024] Figure 1 This is a first-angle structural diagram of the overall structure of this utility model.

[0025] Figure 2 This is a second-angle structural diagram of the overall structure of this utility model.

[0026] Figure 3 This is a structural schematic diagram of the first side lifting part and the first angle of the first swing rod of this utility model.

[0027] Figure 4 This is a structural schematic diagram of the second angle of the first side lifting part and the first swing rod of this utility model.

[0028] Figure 5 This is a structural schematic diagram of the third angle of the first side lifting part and the first swing rod of this utility model.

[0029] Figure 6 This is a structural schematic diagram of the lifting plate portion of this utility model from a first angle.

[0030] Figure 7 This is a structural schematic diagram of the lifting plate portion of this utility model from a second angle.

[0031] Figure 8 This is a schematic diagram of the protective mechanism in the lifting plate part of this utility model.

[0032] Figure 9 This is a schematic diagram of a portion of the protective mechanism in the lifting plate section of this utility model.

[0033] Figure 10 For the present utility model Figure 9 A magnified structural diagram at point A.

[0034] Reference numerals: 1. First side lifting section; 2. Second side lifting section; 3. Lifting plate section; 4. First swing rod; 5. Second swing rod; 101. L-shaped bracket; 102. Motor I; 103. Pulley; 104. Long support rod; 105. Roller; 106. Motor II; 107. Square support plate I; 108. Limiting slide frame; 109. Channel plate I; 110. Channel plate II; 111. Screw moving mechanism; 112. Universal wheel; 301. Square support plate II; 302. Limiting slider; 303. Support base plate; 304. Electric cylinder; 305. Sliding block; 306. Rectangular plate; 307. Motor III; 308. Square base plate; 309. Long connecting rod I; 310. Long connecting rod II; 311. Motor IV; 312. Swinging long rod I; 313. Swinging long rod II. Detailed Implementation

[0035] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model patent. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are merely simplified descriptions for ease of description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model patent. Furthermore, for ease of description, spatial relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the accompanying drawings. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used herein can be interpreted accordingly.

[0037] Implementation, for example Figures 1-10As shown, a portable scaffold for construction engineering includes: a first side lifting part 1, a second side lifting part 2, a lifting plate part 3, a first swing rod 4, and a second swing rod 5;

[0038] The first side lifting section 1 and the second side lifting section 2 have the same structure and are symmetrically distributed. There are two first swing rods 4, one end of which is connected to both sides of the L-shaped bracket 101 of the first side lifting section 1, and the other end of which is rotatably connected to one end of two second swing rods 5. There are two second swing rods 5, and the other end of which is connected to both sides of the L-shaped bracket 101 of the second side lifting section 2. The lifting plate section 3 is slidably installed between the first side lifting section 1 and the second side lifting section 2. Specifically, by swinging the first swing rod 4 and the second swing rod 5 synchronously, the second side lifting part 2 is moved away from the first side lifting part 1. Then, by opening the lifting plate part 3, a person stands on the lifting plate part 3 and uses the first side lifting part 1 and the second side lifting part 2 to move the lifting plate part 3 up and down, thereby moving the person up and down. This makes it easier for people to work in higher areas in construction projects. The lifting plate part 3 is equipped with a protective net. By opening the protective net, people can be prevented from falling off the lifting plate part 3, reducing the probability of danger.

[0039] The first side lifting part 1 also includes: an L-shaped bracket 101, a motor I 102, a pulley 103, a long support rod 104, a roller 105, and a motor II 106;

[0040] Two motors I 102 are mounted on the L-shaped bracket 101 with screws and nuts. The shafts of the two motors I 102 are rotatably connected to one end of the two first swing rods 4, respectively. There are two pulleys 103, which are rotatably mounted on two long support rods 104, and the two long support rods 104 are fixedly mounted on the L-shaped bracket 101. There are two reels 105, whose shafts are fixedly connected to each other, and the two reels 105 are rotatably mounted on the frame of the L-shaped bracket 101. A motor II 106 is mounted on the frame of the L-shaped bracket 101 with screws and nuts. The shaft of the motor II 106 is fixedly connected to the shaft of one of the reels 105. The steel wire ropes on the two reels 105 pass through the pulleys 103 and are connected to one of the limit sliders 302. Specifically, the motor II 106 drives the two reels 105 to rotate, thereby driving the steel wire ropes to pull the lifting plate part 3 up and down.

[0041] In one optional embodiment of this utility model, such as Figure 3As shown, the first side lifting part 1 also includes: a square support plate I 107, a limiting slide frame 108, a channel plate I 109, a channel plate II 110, a lead screw moving mechanism 111, and a caster wheel 112;

[0042] Four casters 112 are fixedly installed on the lower end face of the square support plate I 107; a limiting slide bracket 108 is fixedly installed on the L-shaped bracket 101, and one end of the channel plate II 110 is slidably installed in the slide groove of the limiting slide bracket 108; the other end of the channel plate II 110 is rotatably installed on the square support plate I 107; the intermediate shaft of the channel plate II 110 is rotatably connected to the intermediate shafts of two channel plates I 109; there are two channel plates I 109, and one end of each channel plate I 109 is rotatably installed on the L-shaped bracket 101; the two channel plates... The other end of plate I 109 is connected to the slider of each of the two lead screw moving mechanisms 111. Specifically, the motor on the bracket of one of the lead screw moving mechanisms 111 drives the lead screw of the lead screw moving mechanism 111 to rotate, thereby causing one end of the two slotted plates I 109 to slide, which in turn causes one end of the slotted plate II 110 to slide on the limiting slide frame 108, thereby causing the other ends of the slotted plates II 110 and I 109 to rotate, so that the slotted plates II 110 and I 109 lift the L-shaped bracket 101.

[0043] In one optional embodiment of this utility model, such as Figures 3-5 As shown, there are two lead screw moving mechanisms 111. The bracket of each lead screw moving mechanism 111 is fixedly installed on the square support plate I107. The lead screws of the two lead screw moving mechanisms 111 are connected to the pulleys by belts. A motor is fixedly installed on the bracket of one of the lead screw moving mechanisms 111, and the shaft of the motor is fixedly connected to the shaft of the lead screw of this lead screw moving mechanism 111.

[0044] In one optional embodiment of this utility model, such as Figure 6 , Figure 7 As shown, the lifting plate part 3 includes: square support plate II 301, limiting slider 302, supporting base plate 303, electric cylinder 304, sliding block 305, rectangular plate 306, motor III 307, square base plate 308, and protective mechanism.

[0045] There are two square support plates II 301, and two limiting sliders 302 are fixedly installed on each square support plate II 301. The two limiting sliders 302 on one square support plate II 301 are slidably installed in the slide groove of the L-shaped bracket 101 of the first side lifting part 1, and the two limiting sliders 302 on the other square support plate II 301 are slidably installed in the slide groove of the L-shaped bracket 101 of the second side lifting part 2; there are two sliding inserts 305, and the two sliding inserts 305 are respectively slidably installed in the same... On a supporting base plate 303 on one side, each sliding block 305 is fixedly connected to the telescopic rod end of two electric cylinders 304 on the same side. There are four electric cylinders 304. The cylinder bodies of two electric cylinders 304 are fixedly mounted on the side of one supporting base plate 303, and the telescopic rod ends of these two electric cylinders 304 are fixedly connected to the sliding blocks 305 on the same side. The cylinder bodies of the other two electric cylinders 304 are fixedly mounted on the side of another supporting base plate 303, and the telescopic rod ends of these two electric cylinders 304 are fixedly connected to the sliding blocks 305 on the same side. The sliding insert 305 is fixedly connected; there are two support base plates 303, each fixedly connected to a square support plate II 301 on the same side. A motor III 307 is fixedly installed on the side of each support base plate 303, and the shaft of each motor III 307 is fixedly connected to a rectangular plate 306 on the same side. There are two rectangular plates 306, each rotatably mounted on a support base plate 303 on the same side; each rectangular plate 306 is fixedly connected to a square base plate 308; there are four sets of protective drums, and a protective mechanism is fixedly installed on both sides of each square base plate 308. Specifically, the motor III 307 drives the rectangular plate 306 and the square base plate 308 to rotate, causing the groove on the rectangular plate 306 to rotate towards the sliding insert 305. Then, the electric cylinder 304 extends and retracts, causing the sliding insert 305 to move, thus inserting it into the groove of the rectangular plate 306, preventing the rectangular plate 306 and the square base plate 308 from rotating arbitrarily.

[0046] In one optional embodiment of this utility model, such as Figure 6 , Figure 7 As shown, the rectangular plate 306 has a groove, which intermittently engages with the sliding block 305;

[0047] There are two square base plates 308. One square base plate 308 has a round hole on its side, and the other square base plate 308 has a round rod on its side. When both square base plates 308 are raised to a parallel state, the round rod on the side of one square base plate 308 can be inserted into the round hole on the side of the other square base plate 308.

[0048] In one optional embodiment of this utility model, such as Figures 8-10 As shown, the protective mechanism includes: long connecting rod I 309, long connecting rod II 310, and a swing mechanism;

[0049] Long connecting rod I 309 is fixedly installed on the square base plate 308, and a shielding net is connected between long connecting rod I 309 and long connecting rod II 310; there are two sets of swing mechanisms, which are respectively installed on long connecting rod I 309 and long connecting rod II 310.

[0050] In one optional embodiment of this utility model, such as Figure 10 As shown, the swing mechanism includes: motor IV 311, swing rod I 312 and swing rod II 313;

[0051] Motor IV 311 is fixedly installed on long connecting rod II 310. Motor IV 311 is fixedly connected to one end of swinging long rod II 313. One end of swinging long rod II 313 is rotatably connected to one end of swinging long rod I 312. The other end of swinging long rod I 312 is rotatably installed on long connecting rod I 309. Specifically, motor IV 311 drives swinging long rod II 313 and swinging long rod I 312 to rotate, thereby driving long connecting rod II 310 to move upward, thereby causing long connecting rod II 310 to lift the shielding net, which can reduce the risk of workers falling from height.

[0052] Working principle:

[0053] This equipment can be easily folded to reduce its footprint, and it is equipped with casters 112 at the bottom for easy manual movement. Additionally, it features a safety net to prevent workers from falling due to negligence during operation, reducing the risk of accidents. Furthermore, the equipment can be raised a second time, using its simple structure to increase the lifting height and broaden its applicability.

[0054] The electric cylinder 304 extends and retracts, causing the sliding block 305 to move, thereby pulling the sliding block 305 out of the groove in the rectangular plate 306. Then, the motor III 307 of the first side lifting part 1 drives the rectangular plate 306 and the square base plate 308 to rotate, thereby rotating the rectangular plate 306 and the square base plate 308 to a position flush with the supporting base plate 303. The motor I 102 of the first side lifting part 1 and the second side lifting part 2 respectively drive the first swing rod 4 and the second swing rod 5 to swing synchronously, thereby driving the second side lifting part 2 to move away from the first side lifting part 1.

[0055] Subsequently, the rectangular plate 306 and the square base plate 308 are rotated by the motor Ⅲ307 of the second side lifting part 2, so that the rectangular plate 306 and the square base plate 308 are rotated to a position flush with the supporting base plate 303. The motor Ⅰ102 of the first side lifting part 1 and the second side lifting part 2 respectively drive the first swing rod 4 and the second swing rod 5 to swing synchronously, thereby driving the second side lifting part 2 to move closer to the first side lifting part 1. At this time, when both square base plates 308 are raised to a parallel state, as the square base plate 308 of the second side lifting part 2 moves towards the square base plate 308 of the first side lifting part 1, the round rod on the side of one square base plate 308 will be inserted into the round hole on the side of the other square base plate 308, and the two square base plates 308 are combined into one.

[0056] Then, workers stand on the square base plate 308. Subsequently, the motor IV 311 drives the swing rod II 313 and the swing rod I 312 to rotate, thereby driving the long connecting rod II 310 to move upward, which in turn causes the long connecting rod II 310 to lift the shielding net, thus reducing the risk of workers falling from a height.

[0057] The motor II 106 drives the two rollers 105 to rotate, which in turn drives the wire rope to pull the limit slider 302, thereby moving the square base plate 308 up and down; thus facilitating manual operation at different heights as needed.

[0058] The motor on one of the lead screw moving mechanisms 111 drives the lead screw of the lead screw moving mechanism 111 to rotate, thereby causing one end of the two channel plates I 109 to slide, which in turn causes one end of the channel plate II 110 to slide on the limiting slide frame 108, thereby causing the other ends of the channel plates II 110 and I 109 to rotate, so that the channel plates II 110 and I 109 lift the L-shaped bracket 101, realizing a secondary lifting, which greatly increases the applicability of the equipment.

[0059] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable scaffolding for construction projects, characterized in that, include: First side lifting section (1), second side lifting section (2), lifting plate section (3), first swing rod (4), and second swing rod (5); The first side lifting part (1) and the second side lifting part (2) have the same structure and are symmetrically distributed. There are two first swing rods (4), one end of which is connected to both sides of the L-shaped bracket (101) of the first side lifting part (1) and the other end of which is rotatably connected to one end of the two second swing rods (5). There are two second swing rods (5), the other end of which is connected to both sides of the L-shaped bracket (101) of the second side lifting part (2). The lifting plate part (3) is slidably installed in the middle of the first side lifting part (1) and the second side lifting part (2). The first side lifting part (1) further includes: an L-shaped bracket (101), a motor I (102), a pulley (103), a long support rod (104), and a roller (105). Two motors I (102) are mounted on the L-shaped bracket (101) by screws and nuts. The shafts of the two motors I (102) are rotatably connected to one end of the two first swing rods (4). There are two pulleys (103), which are rotatably mounted on two long support rods (104), and the two long support rods (104) are fixedly mounted on the L-shaped bracket (101). There are two rollers (105), whose shafts are fixedly connected to each other, and the two rollers (105) are rotatably mounted on the frame of the L-shaped bracket (101).

2. The portable scaffolding for construction projects according to claim 1, characterized in that, The first side lifting part (1) further includes: motor II (106), square support plate I (107), limiting slide frame (108), trough plate I (109), trough plate II (110), screw moving mechanism (111), and caster wheel (112). Four casters (112) are fixedly installed on the lower end face of the square support plate I (107); the limiting slide frame (108) is fixedly installed on the L-shaped bracket (101), and one end of the groove plate II (110) is slidably installed in the slide groove of the limiting slide frame (108), and the other end of the groove plate II (110) is rotatably installed on the square support plate I (107). The intermediate shaft of the groove plate II (110) is rotatably connected to the intermediate shaft of the two groove plates I (109). There are two groove plates I (109), one end of the two groove plates I (109) is rotatably installed on the L-shaped bracket (101), and the other ends of the two groove plates I (109) are respectively connected to the sliders of the two lead screw moving mechanisms (111); the motor II (106) is installed on the frame of the L-shaped bracket (101) by screws and nuts. The shaft of (106) is fixedly connected to the shaft of one of the reels (105), and the wire ropes on the two reels (105) pass through the pulley (103) and are connected to one of the limiting sliders (302).

3. The portable scaffolding for construction projects according to claim 2, characterized in that, There are two lead screw moving mechanisms (111). The bracket of each lead screw moving mechanism (111) is fixedly installed on the square support plate I (107). The lead screws of the two lead screw moving mechanisms (111) are connected to the pulleys by belts. A motor is fixedly installed on the bracket of one of the lead screw moving mechanisms (111), and the shaft of the motor is fixedly connected to the shaft of the lead screw of this lead screw moving mechanism (111).

4. The portable scaffolding for construction projects according to claim 1, characterized in that, The lifting plate part (3) includes: square support plate II (301), limiting slider (302), supporting base plate (303), electric cylinder (304), sliding block (305), rectangular plate (306), motor III (307), square base plate (308), and protective mechanism; There are two square support plates II (301), and two limiting sliders (302) are fixedly installed on each square support plate II (301). The two limiting sliders (302) on one square support plate II (301) are slidably installed in the groove of the L-shaped bracket (101) of the first side lifting part (1), and the two limiting sliders (302) on the other square support plate II (301) are slidably installed in the groove of the L-shaped bracket (101) of the second side lifting part (2). There are two sliding blocks (305), and the two sliding blocks (305) are respectively slidably installed on a support base plate (303) on the same side. Each sliding block (305) is fixedly connected to the telescopic rod end of two electric cylinders (304) on the same side. There are four electric cylinders (304), and the cylinder body of two of the electric cylinders (304) is fixedly installed on a support base plate (303). On the side, the telescopic rod ends of the two electric cylinders (304) are fixedly connected to the sliding plug (305) on the same side, and the cylinder body of the other two electric cylinders (304) is fixedly installed on the side of another support base plate (303); there are two support base plates (303), and the two support base plates (303) are respectively fixedly connected to a square support plate II (301) on the same side. A motor III (307) is fixedly installed on the side of each support base plate (303), and the shaft of each motor III (307) is fixedly connected to a rectangular plate (306) on the same side. There are two rectangular plates (306), and the two rectangular plates (306) are respectively rotatably installed on a support base plate (303) on the same side; each rectangular plate (306) is fixedly connected to a square base plate (308); there are four sets of protective drums, and a protective mechanism is fixedly installed on both sides of each square base plate (308).

5. The portable scaffolding for construction projects according to claim 4, characterized in that, The rectangular plate (306) is provided with a groove, which intermittently engages with the sliding block (305).

6. The portable scaffolding for construction projects according to claim 4, characterized in that, There are two square base plates (308), one of which has a round hole on its side and the other has a round rod on its side.

7. The portable scaffolding for construction projects according to claim 4, characterized in that, The protective mechanism includes: long connecting rod I (309), long connecting rod II (310), and a swing mechanism; The long connecting rod I (309) is fixedly installed on the square base plate (308), and a shielding net is connected between the long connecting rod I (309) and the long connecting rod II (310); there are two sets of swing mechanisms, and the two sets of swing mechanisms are respectively installed on the long connecting rod I (309) and the long connecting rod II (310).

8. The portable scaffolding for construction projects according to claim 7, characterized in that, The swing mechanism includes: motor IV (311), swing rod I (312) and swing rod II (313). The motor Ⅳ (311) is fixedly installed on the long connecting rod Ⅱ (310). The motor Ⅳ (311) is fixedly connected to one end of the swing rod Ⅱ (313). One end of the swing rod Ⅱ (313) is rotatably connected to one end of the swing rod Ⅰ (312). The other end of the swing rod Ⅰ (312) is rotatably installed on the long connecting rod Ⅰ (309).

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