A multifunctional ladder for construction

Abstract

The present invention is a multifunctional ladder for construction, including an inclined inverted U-shaped bracket, a plurality of fixed screws, a tread plate and two inclined support rods, a universal self-locking roller is installed at each end of the lower part of the bracket, a movable barrel rod is hinged on one side of the upper part of the support rod, and a socket matching the fixed hole is provided on the movable barrel rod, and a positioning pin is inserted in the socket. The present invention is simple and quick to use, and the present invention can be folded by the hinge between the bracket and the support rod, and the tread plate can be rotated for stepping by components such as inclined rods and connecting rods, and the present invention can be freely moved by the universal self-locking roller. The present invention is convenient for placing materials by rotating the operating plate, etc., and the rotating operating plate of the present invention can be rotated and fixed by the fixing hole, the positioning pin, and the socket, so that the folding of the present invention is also convenient, and the functional diversity of the present invention is further increased.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, in particular to a multifunctional ladder for building construction. Background Art

[0002] In construction, ladders are needed for working at heights. Existing ladders have a single function, are bulky, cannot be folded, are difficult to move, are not convenient for placing materials, lack functional diversity, cannot be rotated according to actual needs, are not simple and flexible, and have a narrow range of applications, resulting in inconvenience and reduced work efficiency. Summary of the Invention

[0003] The present invention aims to solve the deficiencies of the prior art and provides a multifunctional ladder for construction.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a multifunctional ladder for construction, comprising an inclined inverted U-shaped bracket, a tread plate, a plurality of fixing screws and two inclined support rods, the upper end of the support rod is hinged to the bracket, the lower end of the support rod is located on the ground, a gap is left between the two support rods, and an upper cross bar and a lower cross bar distributed up and down are arranged in the gap, the ends of the upper cross bar and the lower cross bar are fixedly connected to the support rod, and the upper cross bar and the lower cross bar are perpendicular to the support rod, the lower part of the support rod is hinged with a diagonal rod, and the other end of the diagonal rod is hinged with a cross bar connected to the end of the bracket The tread is located between the two connecting rods, and the front and rear sides of the end of the tread away from the bracket are hinged to the connecting rod. The bottom surface of the end of the tread away from the bracket is fitted with the top surface of the upper cross bar. A universal self-locking roller is installed at each end of the lower part of the bracket. A movable cylinder rod is hinged on one side of the upper part of one of the support rods. The free end of the movable cylinder rod is covered with a No. 1 fixed ring and is plugged with an L-shaped rod. The end of the L-shaped rod inserted into the movable cylinder rod is covered with a No. 2 fixed ring. Both the No. 1 fixed ring and the No. 2 fixed ring are provided There are several fixing holes evenly distributed around the circumference, and the fixing screw passes through the fixing holes on the relatively aligned No. 1 fixing ring and the fixing holes on the No. 2 fixing ring. Both ends of the fixing screw are connected with fixing nuts. The No. 1 fixing ring and the No. 2 fixing ring are connected together through the fixing screw and the fixing nut. An external thread is provided on the outer wall of the end of the L-shaped rod away from the movable cylinder rod, and the L-shaped rod is threadedly connected to the adjusting cylinder, and the other end of the adjusting cylinder is connected to a limiting column, and a No. 1 positioning block is connected to the limiting column. The other end of the limiting column is rotatably connected to a positioning elbow, and the end of the positioning elbow close to the limiting column is connected There is a limit block that matches the No. 1 positioning block, the other end of the positioning elbow is connected to a positioning column, the other end of the positioning column is rotatably connected to a fixed support plate, the fixed support plate is connected to a rotating operating plate, the positioning column is connected to the No. 2 positioning block, and the fixed support plate is connected to a fixed block that matches the No. 2 positioning block. A fixing hole is provided at the upper end of the support rod, a socket matching the fixing hole is provided on the movable barrel rod, and a positioning pin is inserted in the socket. When the free end of the movable barrel rod is rotated to the upper side, the socket on the movable barrel rod is aligned with the fixing hole, and the positioning pin is inserted into the relatively aligned socket and fixing hole.

[0005] The upper end surface of the bracket is provided with an anti-slip rubber layer.

[0006] The universal self-locking roller is installed on the side of the bracket end away from the support rod.

[0007] Anti-slip rubber pads are provided at the lower ends of the support rod and the bracket.

[0008] The number of fixing screws is greater than 2.

[0009] The top surface of the tread is provided with anti-slip grooves.

[0010] The number of treads is 5.

[0011] The beneficial effects of the present invention are as follows: the present invention overcomes the shortcomings of traditional ladders during use, is easy and quick to use, enables folding by articulating the bracket and the support rod, enables the treads to be rotated for easy stepping by means of components such as inclined rods and connecting rods, enables free movement by means of universal self-locking rollers, facilitates the placement of materials by means of a rotating operating panel, and facilitates the rotation and fixation of the rotating operating panel by means of fixing holes, positioning pins, and jacks, thereby facilitating the folding of the present invention and further increasing the functional diversity of the present invention. The present invention is not only convenient for on-demand self-manufacturing, but also ensures safety and convenience in use, saves time and effort, has a simple structure, reduces space occupation, reduces costs, and improves efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is a schematic diagram of the connection between the rotary operating plate and the adjustment cylinder;

[0014] Figure 3 for Figure 1 A is an enlarged schematic diagram;

[0015] In the figure: 1-bracket; 2-stepping plate; 3-connecting rod; 4-oblique tie rod; 5-support rod; 6-upper crossbar; 7-lower crossbar; 8-universal self-locking roller; 9-movable cylinder rod; 10-No. 1 fixing ring; 11-L-shaped rod; 12-No. 2 fixing ring; 13-fixing screw; 14-fixing nut; 15-adjusting cylinder; 16-limiting column; 17-No. 1 positioning block; 18-limiting block; 19-positioning elbow; 20-positioning column; 21-fixing support plate; 22-rotating operation panel; 23-No. 2 positioning block; 24-fixing block; 25-fixing hole; 26-positioning pin;

[0016] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] like Figures 1 to 3As shown, a multifunctional ladder for construction includes an inclined inverted U-shaped bracket 1, a tread 2, a plurality of fixing screws 13 and two inclined support rods 5. The upper end of the support rod 5 is hinged to the bracket 1, and the lower end of the support rod 5 is located on the ground. A gap is left between the two support rods 5, and an upper cross bar 6 and a lower cross bar 7 are provided in the gap. The ends of the upper cross bar 6 and the lower cross bar 7 are fixedly connected to the support rod 5, and the upper cross bar 6 and the lower cross bar 7 are perpendicular to the support rod 5. The lower part of the support rod 5 is hinged with a diagonal rod 4, and the other end of the diagonal rod 4 is hinged with a connecting rod 3 parallel to the straight section of the end of the bracket 1. The tread 2 is located between the two connecting rods 3. The front and rear sides of the end of the tread 2 away from the bracket 1 are hinged to the connecting rod 3. The bottom surface of the end of the tread 2 away from the bracket 1 is fitted with the top surface of the upper cross bar 6. A universal self-locking roller 8 is installed at each end of the lower part of the bracket 1. A movable cylinder rod 9 is hinged on one side of the upper part of one of the support rods 5. The free end of the movable cylinder rod 9 is sleeved with a No. 1 fixed ring 10 and plugged with an L-shaped rod 11. The L-shaped rod 11 is inserted into one end of the movable cylinder rod 9 and is sleeved with a No. 2 fixed ring 12. A number of fixing holes are evenly distributed on the No. 1 fixing ring 10 and the No. 2 fixing ring 12, and the fixing screw 13 passes through the relatively aligned No. 1 fixing ring. The fixing holes on the fixing ring 10 and the fixing holes on the No. 2 fixing ring 12, both ends of the fixing screw 13 are connected with fixing nuts 14, the No. 1 fixing ring 10 and the No. 2 fixing ring 12 are connected together by the fixing screw 13 and the fixing nut 14, the outer side wall of the L-shaped rod 11 away from the end of the movable cylinder rod 9 is provided with an external thread, and the L-shaped rod 11 is threadedly connected with an adjusting cylinder 15, the other end of the adjusting cylinder 15 is connected with a limiting column 16, the limiting column 16 is connected with a No. 1 positioning block 17, the other end of the limiting column 16 is rotatably connected with a positioning elbow 19, and the end of the positioning elbow 19 close to the limiting column 16 is connected with a limiting block 17 that matches the No. 1 positioning block The positioning block 18 and the other end of the positioning elbow 19 are connected to a positioning column 20, and the other end of the positioning column 20 is rotatably connected to a fixed support plate 21, and a rotating operating plate 22 is connected to the fixed support plate 21. The positioning column 20 is connected to a second positioning block 23, and the fixed support plate 21 is connected to a fixed block 24 that matches the second positioning block 23. A fixing hole 25 is provided at the upper end of the support rod 5, and a socket that matches the fixing hole 25 is provided on the movable cylinder rod 9, and a positioning pin 26 is inserted in the socket. When the free end of the movable cylinder rod 9 is rotated to the top, the socket on the movable cylinder rod 9 is aligned with the fixing hole 25, and the positioning pin 26 is inserted into the relatively aligned socket and fixing hole 25.

[0019] The upper surface of the bracket 1 is provided with an anti-slip rubber layer.

[0020] The universal self-locking roller 8 is mounted on the end of the bracket 1 at a side away from the support rod 5 .

[0021] The lower ends of the support rod 5 and the bracket 1 are provided with anti-slip rubber pads.

[0022] The number of the fixing screws 13 is greater than two.

[0023] The top surface of the tread plate 2 is provided with anti-slip grooves.

[0024] The number of the treads 2 is 5.

[0025] When the present invention is working, it is moved to the position where it needs to be used according to the needs of use. The setting of the universal self-locking roller 8 facilitates the movement of the present invention, and then the support rod 5 is rotated around the bracket 1 until it cannot be rotated. At this time, the stepping plate 2 will be fully unfolded and reach a horizontal state, and the staff can hold the bracket 1 and step onto the stepping plate 2 to perform high-altitude operations. When it is necessary to use the rotating operating plate 22 to place materials, it is only necessary to rotate the movable barrel rod 9 in the vertical plane until the free end of the rotating operating plate 22 is rotated to the top, and the socket on the movable barrel rod 9 is aligned with the fixing hole 25, and then the positioning pin 26 is inserted into the aligned socket and fixing hole 25 to fix the movable barrel rod 9. After the movable barrel rod 9 is fixed, the rotating operating plate 22 is rotated in the vertical plane until it cannot be rotated, that is, the limit block 18 is aligned with the fixed hole 25. After the first positioning block 17 is positioned, the rotating operating plate 22 is rotated horizontally until it cannot rotate any further. The second positioning block 23 is positioned by the fixed block 24. The rotating operating plate 22 is now at an angle optimal for the operator to use the rotating operating plate 22. After use, the rotating operating plate 22 is rotated horizontally until it cannot rotate any further. Then, the rotating operating plate 22 is rotated vertically until it cannot rotate any further. The positioning pin 26 is then removed from the aligned insertion and fixing holes 25. The free end of the movable cylindrical rod 9 is rotated downward. The bracket 1 and support rod 5 are then retracted. The treads 2 are now fully closed and in a vertical position. The entire device is in its maximum folded position, minimizing space usage. The operator can then hold the bracket 1 and remove the device using the universal self-locking rollers 8. This ensures easy and quick operation. The simple ladder device of the present invention saves time and effort, is convenient and quick to use, and is safe and efficient. Therefore, using a ladder for high-altitude work becomes particularly convenient, reducing costs and improving efficiency.

[0026] In addition, the adjustment cylinder 15 and the L-shaped rod 11 work together to adjust the position of the rotating operating plate 22 from the movable cylinder rod 9, making it convenient for the user to take and place materials on the rotating operating plate 22.

[0027] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or they are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A multifunctional ladder for construction, characterized in that: The utility model comprises an inclined inverted U-shaped bracket, a plurality of fixing screws, a tread plate and two inclined support rods, the upper end of the support rod is hinged with the bracket, the lower end of the support rod is located on the ground, a gap is left between the two support rods, and an upper cross bar and a lower cross bar distributed up and down are arranged in the gap, the ends of the upper cross bar and the lower cross bar are fixedly connected with the support rod, and the upper cross bar and the lower cross bar are perpendicular to the support rod, the lower part of the support rod is hinged with an oblique tie rod, and the other end of the oblique tie rod is hinged with a connecting rod parallel to the straight section of the bracket end, the tread plate is located between the two connecting rods, and the tread plate is located between the two connecting rods. The front and rear sides of the end of the step plate away from the bracket are hinged to the connecting rod, the bottom surface of the end of the step plate located at the top away from the bracket is in contact with the top surface of the upper cross bar, and a universal self-locking roller is installed at each end of the lower part of the bracket. A movable cylinder rod is hinged on one side of the upper part of one of the support rods, and a No. 1 fixed ring is sleeved on the free end of the movable cylinder rod, and an L-shaped rod is inserted into the end of the L-shaped rod inserted into the movable cylinder rod. A No. 2 fixed ring is sleeved on the end, and a number of fixing holes evenly distributed around the circumference are provided on the No. 1 fixed ring and the No. 2 fixed ring, and the fixing screw penetrates Through the fixing holes on the aligned No. 1 fixing ring and the fixing holes on the No. 2 fixing ring, both ends of the fixing screw are connected with fixing nuts, the No. 1 fixing ring and the No. 2 fixing ring are connected together through the fixing screw and the fixing nut, an external thread is provided on the outer wall of the end of the L-shaped rod away from the movable cylinder rod, and the L-shaped rod is threadedly connected with an adjusting cylinder, the other end of the adjusting cylinder is connected with a limiting column, the limiting column is connected with a No. 1 positioning block, the other end of the limiting column is rotatably connected with a positioning elbow, and the end of the positioning elbow close to the limiting column is connected with a matching No. 1 positioning block. A limit block is matched, the other end of the positioning elbow is connected with a positioning column, the other end of the positioning column is rotatably connected to a fixed support plate, the fixed support plate is connected to a rotating operating plate, the positioning column is connected to a No. 2 positioning block, and the fixed support plate is connected to a fixed block matching the No. 2 positioning block. A fixing hole is provided at the upper end of the support rod, a socket matching the fixing hole is provided on the movable barrel rod, and a positioning pin is inserted in the socket. When the free end of the movable barrel rod rotates to the upper side, the socket on the movable barrel rod is aligned with the fixing hole, and the positioning pin is inserted into the aligned socket and fixing hole.

2. The multifunctional ladder for construction according to claim 1, characterized in that: The upper end surface of the bracket is provided with an anti-skid rubber layer.

3. The multifunctional ladder for construction according to claim 2, characterized in that: The universal self-locking roller is installed on the side of the bracket end away from the support rod.

4. The multifunctional ladder for construction according to claim 3, characterized in that: Anti-skid rubber pads are provided at the lower ends of the support rod and the bracket.

5. The multifunctional ladder for construction according to claim 4, characterized in that: The number of fixing screws is greater than 2.

6. The multifunctional ladder for construction according to claim 5, characterized in that: The top surface of the tread is provided with anti-slip grooves.

7. The multifunctional ladder for construction according to claim 6, characterized in that: The number of treads is 5.

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