Portable safety engineering ladder

Abstract

The utility model discloses a portable safety engineering ladder, which relates to the field of engineering ladders, and comprises a ladder frame, a support frame is mounted on one side of the ladder frame through a movable shaft, a plurality of step plates are fixed in the ladder frame, and dismounting components are arranged on the step plates. The dismounting and mounting assembly comprises a cavity formed in the top of the step plate and two grooves formed in the step plate, an insertion plate is inserted into the cavity, two limiting grooves are formed in the insertion plate, and springs are fixed into the grooves. By arranging the dismounting assembly, when the antiskid plate needs to be dismounted so as to be replaced or cleaned, a user can pull the pull rod through the pull plate, the pull rod can drive the limiting block to move so that the limiting block can move out of the limiting groove, at the moment, the limiting block does not limit and fix the inserting plate any more, and the spring rod extends to push the top plate to move upwards; and the top plate pushes the insertion plate to move upwards, so that the limiting block is aligned with the limiting groove, and then the anti-skid plate can be taken out to be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the field of engineering ladders, in particular to a portable safety engineering ladder. Background Art

[0002] As the name suggests, an engineering ladder is a ladder used for engineering purposes. Nowadays, the general engineering ladder family has expanded. It is no longer like the single herringbone ladder or straight ladder before. It has a variable structure, adjustable height, and variable shape, making it a ladder that is truly suitable for modern engineering.

[0003] According to a Chinese patent with publication number CN220247978U, a portable safety engineering ladder is disclosed. The portable safety engineering ladder is configured with a support rod, a diagonal support rod, a stabilizing rod, a fixed rod and a tool box. The support rod is tilted to one side, and a step plate is installed on one side of the support rod to increase the stability of the support rod and the diagonal support rod during use. The anti-roll bar is pulled out from the inside of the fixed rod and pressed against the ground, which is beneficial to improve the stability effect of the device during use and increase the safety of the device.

[0004] In view of the above-mentioned disclosed patent content, a tread will be provided so that people can climb to a high place to work through the tread. At the same time, anti-skid grooves will be provided on the tread to play an anti-skid role. However, the anti-skid grooves may cause wear after long-term use. In order to ensure the anti-skid effect of the tread, the tread needs to be disassembled and replaced. As a result, when replacing the anti-skid structure, the entire tread needs to be disassembled and replaced, which increases the replacement cost. Moreover, the tread is installed on the ladder frame by multiple bolts. When disassembling, multiple bolts need to be turned and the bolts need to be taken out before the tread can be disassembled. The disassembly and assembly process is relatively troublesome, time-consuming and labor-intensive, thereby reducing the efficiency of disassembly and replacement of the anti-skid plate. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a portable safety engineering ladder to solve the technical problem that it is inconvenient to disassemble and replace the anti-slip structure on the step plate.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a portable safety engineering ladder, comprising a ladder frame, a support frame is installed on one side of the ladder frame through a movable shaft, a plurality of treads are fixed inside the ladder frame, and a disassembly and assembly component is provided on the tread, the disassembly and assembly component comprises a cavity opened at the top of the tread and two grooves opened inside the tread, an insertion plate is inserted into the inside of the cavity, two limit grooves are provided on the insertion plate, a spring is fixed inside the groove, and one end of the spring is connected to a limit block.

[0007] By adopting the above technical solution, the support frame can be rotated through the movable shaft to open the engineering ladder. At the same time, the support frame can play a role in supporting the ladder frame, thereby improving the stability of the ladder frame.

[0008] Furthermore, a pull rod extending to the outside of the ladder frame is installed on one side of the limit block, and a pull plate is installed on the end of the pull rod.

[0009] By adopting the above technical solution, when the limiting block needs to be moved out of the limiting groove, the user can pull the pull rod through the pull plate, and the pull rod will drive the limiting block to move.

[0010] Furthermore, a plurality of spring rods are fixed at the lower interior of the cavity, and the top ends of the spring rods are connected to a top plate.

[0011] By adopting the above technical solution, when the top plate moves downward, it will squeeze the spring rod, causing the spring rod to contract, making it easier to push the top plate upward and reset.

[0012] Furthermore, the top plate is slidably connected to the cavity, and the top of the top plate is in contact with the bottom of the plug plate.

[0013] By adopting the above technical solution, the top plate can slide inside the cavity, and when the top plate moves, it will push the plug plate to move up.

[0014] Furthermore, an anti-skid plate is installed on the top of the plug board, and anti-skid grooves are formed on the top of the anti-skid plate.

[0015] By adopting the above technical solution, the provision of the anti-skid plate can play an anti-skid role, making it convenient for workers to stand on the anti-skid plate.

[0016] Furthermore, the anti-skid plate is detachably connected to the tread plate via a plug plate, and the bottom of the anti-skid plate is in contact with the top of the tread plate.

[0017] By adopting the above technical solution, the anti-skid plate can be installed on the step board through the plug plate, and the step board can support the anti-skid plate.

[0018] Furthermore, the limiting block is located inside the limiting groove, and the limiting block is slidably connected to the groove.

[0019] By adopting the above technical solution, when the limiting block moves into the limiting groove, it will limit and fix the plug board to prevent the plug board from moving.

[0020] Furthermore, the top of the limit block and both sides of the bottom of the plug plate are arranged in an inclined manner.

[0021] By adopting the above technical solution, when the inserting plate is inserted into the cavity, the inserting plate will push the limiting block to move, so that the limiting block moves into the groove.

[0022] Furthermore, the outer surface and the back of the ladder frame are both rotatably connected to a first connecting plate, the outer surface and the back of the support frame are both rotatably connected to a second connecting plate, and the first connecting plate and the second connecting plate are connected via a rotating shaft.

[0023] By adopting the above technical solution, the first connecting plate and the second connecting plate can pass through the rotating shaft, and the first connecting plate and the second connecting plate can connect the ladder frame and the supporting frame together.

[0024] Furthermore, a bottom plate is installed at the bottom of the ladder frame and the bottom of the support frame by bolts, and an anti-slip pad is provided at the bottom of the bottom plate.

[0025] By adopting the above technical solution, the provision of the anti-skid pad can play an anti-skid role, so as to improve the stability of the engineering ladder, and the bottom plate can be disassembled and assembled.

[0026] In summary, the utility model mainly has the following beneficial effects:

[0027] The utility model is provided with a disassembly and assembly component. When the anti-skid plate needs to be disassembled for replacement or cleaning, the user can pull the pull rod through the pull plate, and the pull rod will drive the limit block to move, so that the limit block is moved out of the limit groove. At this time, the limit block no longer limits and fixes the plug plate, and the spring rod is extended to push the top plate upward, and the top plate pushes the plug plate upward so that the limit block is aligned with the limit groove. Then the anti-skid plate can be taken out to replace the anti-skid plate, and then the plug plate at the bottom of the anti-skid plate to be replaced is inserted into the cavity. During the insertion, it will push the limit block to slide into the groove and squeeze the spring. When the top plate is pushed down, the top plate squeezes the spring rod. When the plug plate is fully inserted into the cavity, the spring stretches and pushes the limit block to reset and move, so that the limit block is stuck in the limit groove to limit and fix the plug plate, thereby completing the installation of the anti-skid plate. In this way, the anti-skid plate can be quickly disassembled and installed, and then the anti-skid plate can be replaced, avoiding the need to fix the anti-skid plate with multiple bolts. The disassembly and assembly process is simple and convenient, and takes less time, thereby improving the disassembly, assembly and replacement efficiency of the anti-skid plate. At the same time, this disassembly method only requires the disassembly of the anti-skid plate, and there is no need to disassemble the step plate, thereby reducing the replacement cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0029] Figure 2 It is a schematic diagram of the side section structure of the stepping board of the utility model;

[0030] Figure 3 It is a schematic diagram of the three-dimensional partial structure of the tread plate of the utility model;

[0031] Figure 4 This is a schematic diagram of the top plate of the utility model when viewed from above;

[0032] Figure 5 It is a schematic diagram of the three-dimensional partial structure of the plugboard of the utility model;

[0033] Figure 6 For the utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0034] In the figure: 1, ladder frame; 2, support frame; 3, step board; 4, movable shaft; 5, first connecting plate; 6, second connecting plate; 7, bottom plate; 8, anti-skid plate; 9, disassembly and assembly component; 901, cavity; 902, spring rod; 903, top plate; 904, plug plate; 905, limit groove; 906, limit block; 907, groove; 908, spring; 909, pull rod; 910, pull plate. DETAILED DESCRIPTION

[0035] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0036] The following describes an embodiment of the utility model based on its overall structure.

[0037] Embodiment 1:

[0038] A portable safety engineering ladder, such as Figure 1-Figure 6 As shown, it includes a ladder frame 1, a support frame 2 is installed on one side of the ladder frame 1 through a movable shaft 4, and the support frame 2 can be rotated by the movable shaft 4 to open the engineering ladder. At the same time, the support frame 2 can support the ladder frame 1 and improve the stability of the ladder frame 1. When carrying the engineering ladder, the support frame 2 can be rotated to one side of the ladder frame 1 to reduce the volume of the engineering ladder, thereby facilitating the staff to carry it. A plurality of treads 3 are fixed inside the ladder frame 1, and a disassembly assembly 9 is provided on the treads 3. An anti-skid plate 8 is installed on the top of the plug plate 904, and the top of the anti-skid plate 8 is provided with anti-skid patterns. The setting of the anti-skid plate 8 can play an anti-skid role, which is convenient for the staff to stand on the anti-skid plate 8. The outer surface and back of the ladder frame 1 are rotatably connected with a first connecting plate 5, and the outer surface and back of the support frame 2 are rotatably connected with a second connecting plate 6. The first connecting plate 5 and the second connecting plate 6 are connected by a rotating shaft. The first connecting plate 5 and the second connecting plate 6 can pass through the rotating shaft, and at the same time, the first connecting plate 5 and the second connecting plate 6 can connect the ladder frame 1 and the support frame 2 together.

[0039] Specifically, the disassembly and assembly component 9 includes a cavity 901 opened at the top of the stepping plate 3 and two grooves 907 opened inside the stepping plate 3. A plug plate 904 is inserted into the cavity 901. Two limit grooves 905 are opened on the plug plate 904. A spring 908 is fixed inside the groove 907, and one end of the spring 908 is connected to a limit block 906. The limit block 906 is located inside the limit groove 905. The limit block 906 is slidably connected to the groove 907. When the limit block 906 moves into the limit groove 905, it will limit and fix the plug plate 904 to prevent the plug plate 904 from moving. The top of the limit block 906 and the bottom of the plug plate 904 are both inclined, so that when the plug plate 904 is inserted into the cavity 901, the plug plate 904 will push the limit block 906 to move, so that the limit block 906 moves into the groove 907.

[0040] Specifically, a pull rod 909 extending to the outside of the ladder frame 1 is installed on one side of the limit block 906, and a pull plate 910 is installed on the end of the pull rod 909. When the limit block 906 needs to be moved out from the limit groove 905, the user can pull the pull rod 909 through the pull plate 910, and the pull rod 909 will drive the limit block 906 to move. The anti-skid plate 8 is detachably connected to the step board 3 through the plug plate 904, and the bottom of the anti-skid plate 8 contacts the top of the step board 3 so that the anti-skid plate 8 can be installed on the step board 3 through the plug plate 904, and the step board 3 can support the anti-skid plate 8.

[0041] Embodiment 2:

[0042] Based on the above-mentioned embodiment 1, when the staff pulls the pull rod 909 to move the limit block 906 out from the limit groove 905, it is necessary to misalign the limit block 906 and the limit groove 905 to facilitate the staff to take out the anti-slip plate 8, so the following structure is set.

[0043] Specifically, multiple spring rods 902 are fixed at the lower part of the interior of the cavity 901, and the top end of the spring rods 902 is connected to the top of the top plate 903. When the top plate 903 moves downward, it will squeeze the spring rods 902, causing the spring rods 902 to contract, making it easier to push the top plate 903 upward and reset, so that the limit block 906 and the limit groove 905 are misaligned, making it convenient for subsequent staff to take out the anti-slip plate 8. The top plate 903 is slidably connected to the cavity 901, and the top of the top plate 903 contacts the bottom of the plug plate 904, so that the top plate 903 slides inside the cavity 901, and when the top plate 903 moves, it will push the plug plate 904 to move upward.

[0044] Embodiment three:

[0045] On the basis of the above-mentioned first embodiment, in order to improve the stability of the ladder frame 1 and the support frame 2, the following structure is provided.

[0046] See also Figure 1The bottom of the ladder frame 1 and the bottom of the support frame 2 are both installed with a bottom plate 7 by bolts, and an anti-skid pad is provided at the bottom of the bottom plate 7. The setting of the anti-skid pad can play an anti-skid role so as to improve the stability of the engineering ladder. At the same time, the bottom plate 7 can be disassembled and assembled.

[0047] The working principle of the utility model is as follows: first, when the engineering ladder is needed, the worker can pull the support frame 2 so that the support frame 2 rotates through the movable shaft 4, and then the engineering ladder can be opened, and the worker can step onto the step board 3 so that the worker can work at a high place. When the engineering ladder needs to be carried, the support frame 2 can be rotated to one side of the ladder frame 1 so as to reduce the volume of the engineering ladder and facilitate the worker to carry the engineering ladder;

[0048] When the anti-slip plate 8 needs to be removed for replacement or cleaning, the user can pull the pull rod 909 through the pull plate 910, and the pull rod 909 will drive the limit block 906 to move, so that the limit block 906 moves out of the limit groove 905. At this time, the limit block 906 no longer limits and fixes the plug plate 904, and the spring rod 902 extends to push the top plate 903 upward, and the top plate 903 pushes the plug plate 904 upward, so that the limit block 906 is aligned with the limit groove 905. Then the anti-slip plate 8 can be taken out for replacement or cleaning. The plug-in plate 904 at the bottom of the anti-slip plate 8 to be replaced is inserted into the cavity 901. During the insertion, it will push the limit block 906 to slide into the groove 907 and squeeze the spring 908. At the same time, it will push the top plate 903 downward, so that the top plate 903 squeezes the spring rod 902. When the plug-in plate 904 is fully inserted into the cavity 901, the spring 908 stretches and pushes the limit block 906 to reset and move, so that the limit block 906 is stuck in the limit groove 905, so as to limit and fix the plug-in plate 904, thereby completing the installation of the anti-slip plate 8.

[0049] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A portable safety engineering ladder, comprising a ladder frame (1), characterized in that: A support frame (2) is installed on one side of the ladder frame (1) via a movable shaft (4); a plurality of treads (3) are fixed inside the ladder frame (1); and a disassembly assembly (9) is provided on the tread (3); the disassembly assembly (9) comprises a cavity (901) opened at the top of the tread (3) and two grooves (907) opened inside the tread (3); a plug-in plate (904) is inserted into the cavity (901); two limit grooves (905) are opened on the plug-in plate (904); a spring (908) is fixed inside the groove (907); and one end of the spring (908) is connected to a limit block (906).

2. A portable safety engineering ladder according to claim 1, characterized in that: A pull rod (909) extending to the outside of the ladder frame (1) is installed on one side of the limit block (906), and a pull plate (910) is installed at the end of the pull rod (909).

3. A portable safety engineering ladder according to claim 1, characterized in that: A plurality of spring rods (902) are fixed at the lower part of the cavity (901), and the top ends of the spring rods (902) are connected to a top plate (903).

4. A portable safety engineering ladder according to claim 3, characterized in that: The top plate (903) is slidably connected to the cavity (901), and the top of the top plate (903) is in contact with the bottom of the plug plate (904).

5. The portable safety engineering ladder according to claim 1, characterized in that: An anti-skid plate (8) is installed on the top of the plug plate (904), and anti-skid grooves are formed on the top of the anti-skid plate (8).

6. A portable safety engineering ladder according to claim 5, characterized in that: The anti-skid plate (8) is detachably connected to the stepping plate (3) via a plug plate (904), and the bottom of the anti-skid plate (8) is in contact with the top of the stepping plate (3).

7. A portable safety engineering ladder according to claim 1, characterized in that: The limiting block (906) is located inside the limiting groove (905), and the limiting block (906) is slidably connected to the groove (907).

8. The portable safety engineering ladder according to claim 1, characterized in that: The top of the limit block (906) and both sides of the bottom of the plug plate (904) are arranged in an inclined manner.

9. A portable safety engineering ladder according to claim 1, characterized in that: The outer surface and the back of the ladder frame (1) are both rotatably connected to a first connecting plate (5), and the outer surface and the back of the support frame (2) are both rotatably connected to a second connecting plate (6), and the first connecting plate (5) and the second connecting plate (6) are connected via a rotating shaft.

10. The portable safety engineering ladder according to claim 1, characterized in that: The bottom of the ladder frame (1) and the bottom of the support frame (2) are both mounted with a bottom plate (7) via bolts, and an anti-slip pad is provided at the bottom of the bottom plate (7).

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