Safe folding ladder for constructional engineering
By designing a construction engineering safety folding ladder with adjustable height sliding ladder legs and pedal structure, the problems of traditional ladder instability and various height requirements are solved, and the stability and portability are improved.
Patent Information
- Application Number
- CN202420954861.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional ladders do not have stability and safety during construction, and due to the fixed height, the need for ladders of different heights leads to wasted storage space and manufacturing costs, and are large in size and inconvenient to transport.
A safety folding ladder for construction projects is designed, adopting a sliding ladder leg and pedal structure with adjustable height, which is fixed by knob switches and positioning holes, which can be folded and stored, increasing the convenience of carrying and transportation.
The stability and height adjustment of the ladder is achieved, the waste of storage space is reduced, the transportation process is simplified, and the construction safety and portability are improved.
Smart Images
Figure CN222253799U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a safety folding ladder for construction engineering. Background Art
[0002] In the current construction process, workers use a lot of tools when performing construction work, and ladders become an indispensable construction tool when performing climbing work.
[0003] Traditional ladders require another worker to hold the ladder during construction to prevent the worker from accidentally falling during construction, so they are not stable and safe. At the same time, traditional ladders are fixed in height. Ladders of different heights are required for construction work at different heights, so ladders of different heights need to be manufactured, resulting in a waste of storage space and manufacturing costs. Traditional ladders are too large in size, requiring a lot of manpower during transportation, and are inconvenient to carry and transport. Utility Model Content
[0004] The utility model aims to provide a safe folding ladder for construction engineering to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safe folding ladder for construction projects, comprising four first ladder legs, a plurality of second ladder legs are arranged above the four first ladder legs, and the bottoms of the four first ladder legs are fixedly connected with anti-slip pads, the tops of the opposite sides of the front and rear two first ladder legs are slidably connected to the bottoms of the front and rear two second ladder legs, the tops of the opposite surfaces of the uppermost two second ladder legs are fixedly connected with mounting nails, mounting holes are opened on the front and rear sides of the left and right sides of the ladder board, the mounting nails are rotatably connected to the inner walls of the mounting holes, pedals are arranged between the front and rear two first ladder legs and the second ladder legs, the lengths of the plurality of pedals decrease successively from bottom to top, and a fixing rod is arranged between the left and right first ladder legs.
[0006] Preferably, the ladder plate includes a left ladder plate and a right ladder plate, the left ladder plate and the right ladder plate are rotatably connected, a handle groove is opened on the left portion of the right ladder plate, a handle is installed in the handle groove, and the handle is rotatably connected to the inner wall of the handle groove.
[0007] Preferably, a first slide groove is provided on the sides of the left and right first ladder legs and the second ladder legs that are away from each other, a second slide groove is provided on the sides of the front and rear second ladder legs that are away from each other, a slider is fixedly connected to the top of the sides of the front and rear second ladder legs that are close to each other, a knob switch is provided inside the slider that passes through the front and rear, and the outer wall of the knob switch is threadedly connected to the second ladder leg.
[0008] Preferably, the pedal is slidably connected to a slide groove 1, the cross section of the slide groove 1 is a convex shape, the slider on the second ladder leg below is slidably connected to a slide groove 2 on the second ladder leg above, a plurality of positioning holes are opened inside the slide groove 2, and the cross section of the slide groove 2 is a convex shape.
[0009] Preferably, a mounting cover is provided under the second ladder leg, and four screws are provided at the bottom of the mounting cover to fix it.
[0010] Preferably, the fixing rod comprises a left fixing rod and a right fixing rod, the left fixing rod and the right fixing rod are rotatably connected, and the left end of the left fixing rod and the right end of the right fixing rod are rotatably connected to the outer walls of the left and right first ladder legs respectively.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: each ladder leg of the folding ladder is equipped with a slider, the outer size of the slider is adapted to the inner size of the second slide slot, a plurality of positioning holes are arranged inside the second slide slot, the ladder is stable by fixing it with the positioning holes through a knob switch, and the height of the ladder can be adjusted by switching different positioning holes through the knob switch, a fixing rod is installed under the ladder leg to fix the ladder body, the left ladder board and the right ladder board are folded from the middle, the knob switches of each ladder leg are released, the slider moves in the second slide slot to shrink and fold the ladder for storage, thereby reducing the waste of storage space, and the right ladder board is provided with a handle, which facilitates the carrying and transportation of the folding ladder. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the connection between the ladder plate and the second ladder leg of the utility model;
[0014] Figure 3 This is a schematic diagram of the structure of the fixing rod of the utility model;
[0015] Figure 4 This is a front structural diagram of the second ladder leg of the utility model;
[0016] Figure 5 This is a schematic diagram of the side structure of the second ladder leg of the utility model;
[0017] Figure 6 This is a schematic diagram of the front structure of the first ladder leg of the utility model;
[0018] Figure 7 This is a schematic diagram of the side structure of the first ladder leg of the utility model.
[0019] In the figure: 1. first ladder leg; 2. second ladder leg; 3. ladder board; 4. fixing rod; 5. pedal; 6. right ladder board; 7. left ladder board; 8. slide slot 1; 9. slide slot 2; 10. knob switch; 11. right fixing rod; 12. left fixing rod; 13. mounting nail; 14. mounting hole; 15. handle; 16. positioning hole; 17. slider; 18. anti-slip pad; 19. screw; 20. mounting cover; 21. handle slot. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1 The utility model provides a technical solution: a safe folding ladder for construction engineering, comprising four first ladder legs 1, a plurality of second ladder legs 2 are arranged above the four first ladder legs 1, the tops of the opposite sides of the front and rear two first ladder legs 1 are slidably connected with the bottoms of the lowest front and rear two second ladder legs 2. When the ladder is in use, the first ladder leg 1 and the second ladder leg 2 slide in the slide groove 2 9, which can not only adjust the ladder height according to actual needs, but also fold the ladder for convenient transportation. Steps 5 are arranged between the front and rear two first ladder legs 1 and the second ladder legs 2, and the lengths of the plurality of steps 5 decrease from bottom to top. The steps 5 can slide in the slide groove 1 8, and a fixing rod 4 is arranged between the left and right first ladder legs 1. When folding, the fixing rod 4 rotates upward from the middle, the ladder board 3 is folded from the middle, and the first ladder leg 1 and the second ladder leg 2 slide in the slide groove 2 9 to adjust the ladder height to the lowest, thereby folding the ladder into a minimum state.
[0022] like Figure 2 As shown, the tops of the opposite surfaces of the two uppermost second ladder legs 2 are fixedly connected with mounting nails 13, the uppermost four second ladder legs 2 are provided with ladder plates 3, mounting holes 14 are provided on the left and right sides and the front and rear of the ladder plates 3, the mounting nails 13 are rotatably connected to the inner walls of the mounting holes 14, the ladder plates 3 include a left ladder plate 7 and a right ladder plate 6, the left ladder plate 7 and the right ladder plate 6 are rotatably connected, a handle groove 21 is provided on the left portion of the right ladder plate 6, a handle 15 is installed in the handle groove 21, the handle 15 is rotatably connected to the inner wall of the handle groove 21, when folded, the handle 15 is pulled to drive the ladder plate 3 to rotate upward from the middle, and the provision of the handle 15 facilitates the carrying and transportation of the ladder.
[0023] like Figure 3As shown, a fixing rod 4 is installed under the first ladder leg 1 to fix the ladder body. The fixing rod 4 includes a left fixing rod 12 and a right fixing rod 11. The left fixing rod 12 and the right fixing rod 11 are rotatably connected. The left end of the left fixing rod 12 and the right end of the right fixing rod 11 are rotatably connected to the outer walls of the left and right first ladder legs 1 respectively. When the ladder is in use, the left fixing rod 12 and the right fixing rod 11 rotate relative to each other, and the ladder body can be fixed when they rotate to be parallel to the ground.
[0024] like Figure 4-6 As shown, a mounting cover 20 is provided under the second ladder leg 2, and the mounting cover 20 is fixed by four screws 19. When installing the first ladder leg 1 and the second ladder leg 2, the four screws 19 are loosened, the mounting cover 20 is opened, the slider 17 is inserted into the slide groove 29, and then the mounting cover 20 is fixed. The installation of the mounting cover 20 facilitates the installation of the first ladder leg 1 and the second ladder leg 2. The left and right first ladder legs 1 and the second ladder legs 2 are both provided with a slide groove 8 on the side away from each other, and the front and rear second ladder legs 2 are both provided with a slide groove 29 on the side away from each other. The top of the front and rear second ladder legs 2 are fixedly connected with the slider 17 on the side close to each other. A knob switch 10 is provided inside the slider 17 and runs through it from front to back. The outer wall of the knob switch 10 is threadedly connected to the second ladder leg 2. The pedal 5 is slidably connected to the slide groove 8, and the cross section of the slide groove 8 is a convex shape. The slider 17 on the lower second ladder leg 2 is slidably connected to the slide groove 29 on the upper second ladder leg 2. A plurality of positioning holes 16 are provided inside the slide groove 29, and the cross section of the slide groove 29 is a convex shape. When using the ladder, the knob switch 10 is turned and the ladder can be fixed by fixing the knob switch 10 with the positioning holes 16. The ladder height can be adjusted by fixing the knob switch 10 with different positioning holes 16 in the slide groove 29.
[0025] like Figure 7 As shown, the bottoms of the four first ladder legs 1 are all fixedly connected with anti-skid pads 18, which can prevent the ladder from sliding when in use and prevent workers from accidentally falling.
[0026] Working principle: when folding the ladder, release all the knob switches 10, press the ladder board 3 to reduce the height of the ladder body to the minimum, fold the left fixing rod 12 and the right fixing rod 11 upward from the middle, fold the right ladder board 6 and the left ladder board 7 upward from the middle, and fix the knob switch 10 with the highest positioning hole 16 in the second slide 9, so that the ladder can be folded into the smallest state. When using the ladder, according to actual work needs, adjust the knob switch 10 and fix it with different positioning holes 16 in the second slide 9, fix the ladder at the required height, and lay the ladder board 3 and the fixing rod 4 flat for use.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A safety folding ladder for construction engineering, comprising four first ladder legs (1), a plurality of second ladder legs (2) being arranged above the four first ladder legs (1), and anti-slip pads (18) being fixedly connected to the bottoms of the four first ladder legs (1), characterized in that: The tops of the opposite sides of the two front and rear first ladder legs (1) are slidably connected to the bottoms of the two front and rear second ladder legs (2) at the bottom, the tops of the opposite surfaces of the two uppermost second ladder legs (2) are fixedly connected with mounting nails (13), the four uppermost second ladder legs (2) are provided with ladder plates (3), the left and right sides of the ladder plates (3) are provided with mounting holes (14) at the front and rear, the mounting nails (13) are rotatably connected to the inner walls of the mounting holes (14), pedals (5) are provided between the two front and rear first ladder legs (1) and the second ladder legs (2), the lengths of the pedals (5) decrease from bottom to top, and a fixing rod (4) is provided between the left and right first ladder legs (1).
2. A construction engineering safety folding ladder according to claim 1, characterized in that: The ladder plate (3) comprises a left ladder plate (7) and a right ladder plate (6), wherein the left ladder plate (7) is rotatably connected to the right ladder plate (6), and a handle groove (21) is provided on the left portion of the right ladder plate (6), a handle (15) is installed in the handle groove (21), and the handle (15) is rotatably connected to the inner wall of the handle groove (21).
3. A construction engineering safety folding ladder according to claim 1, characterized in that: A first slide groove (8) is provided on the side of the left and right first ladder legs (1) and the second ladder legs (2) that are away from each other, a second slide groove (9) is provided on the side of the front and rear second ladder legs (2) that are away from each other, a slider (17) is fixedly connected to the top of the side of the front and rear second ladder legs (2) that are close to each other, a knob switch (10) is provided inside the slider (17) and runs through the front and rear, and the outer wall of the knob switch (10) is threadedly connected to the second ladder leg (2).
4. A construction engineering safety folding ladder according to claim 1, characterized in that: The pedal (5) is slidably connected to the first slide groove (8), the cross section of the first slide groove (8) is a convex shape, the slider (17) on the second ladder leg (2) below is slidably connected to the second slide groove (9) on the second ladder leg (2) above, a plurality of positioning holes (16) are provided inside the second slide groove (9), and the cross section of the second slide groove (9) is a convex shape.
5. A construction engineering safety folding ladder according to claim 1, characterized in that: A mounting cover (20) is provided below the second ladder leg (2), and four screws (19) are provided at the bottom of the mounting cover (20) to fix it.
6. A construction engineering safety folding ladder according to claim 1, characterized in that: The fixing rod (4) comprises a left fixing rod (12) and a right fixing rod (11), the left fixing rod (12) being rotatably connected to the right fixing rod (11), and the left end of the left fixing rod (12) and the right end of the right fixing rod (11) being rotatably connected to the outer walls of the left and right first ladder legs (1), respectively.