High-safety crawling ladder
By designing high-safety ladders, including curved hoops, middle and top platforms and ladder locks, the problem of insufficient protection of existing ladders is solved, significantly improving the safety of use and preventing staff from falling.
Patent Information
- Application Number
- CN202411678479.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-02-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing ladders have poor protection, and the risk of falling from the ladder when used is high, especially when the climbing height is high, it is easy to cause huge damage to the human body.
A high-safety ladder is designed, including two vertically arranged ladder bodies, intermediate platform and top platform. The ladder body is composed of vertically arranged ladder columns, vertical poles and arc-shaped hoops, and the middle and top platforms provide stability. The ladder lock is used to block the opening at the bottom of the ladder body to prevent falling.
By setting up a clasp, middle and top platforms and ladder locks, a surrounding structure and a stable footing point are formed, which significantly improves the safety during ladder use and prevents the risk of staff falling.
Smart Images
Figure CN119466541A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of ladders, and in particular to a high-safety ladder. Background Art
[0002] Ladders are commonly used equipment installation and maintenance tools. Workers can climb to a high place by using the ladder to install, maintain or disassemble equipment. A ladder is designed in the prior art, including a ladder body, which includes two ladder beams and a plurality of foot tubes arranged between the ladder beams on both sides. When using the ladder, workers can climb along the ladder beams through the foot tubes. However, the protectiveness of this ladder is poor, and the risk of workers falling from the ladder is relatively high. If the climbing height is high, it is easy to cause great damage to the human body, so it needs to be improved. Summary of the invention
[0003] In order to improve the safety of a ladder during use, the present application provides a high-safety ladder.
[0004] The high-safety ladder provided in this application adopts the following technical solution: A high-safety ladder comprises two vertically arranged ladder bodies, an intermediate platform and a top platform, the ladder body comprises two vertically arranged ladder columns, a plurality of vertical poles and a plurality of hoops, the plurality of vertical poles are arranged between the ladder columns on both sides, the hoops are arc-shaped, the two ends of the hoops are respectively connected to the side walls of the ladder columns on both sides, the plurality of hoops are distributed along the length direction of the ladder columns, the two ladder bodies are arranged up and down, the intermediate platform is arranged between the two ladder bodies, the top platform is arranged at the top of the upper ladder body, and a ladder lock is arranged at the bottom end of the lower ladder body.
[0005] By adopting the above technical solution, the setting of the clamp can form an enclosing structure between the ladder column and the vertical pole to prevent the staff from falling when climbing. The setting of the middle platform and the top platform can provide the staff with a stable foothold so that the staff can work or rest. The setting of the ladder lock can block the opening at the bottom of the ladder body to prevent the staff from falling from the opening, thereby improving the safety of the ladder during use.
[0006] Optionally, the ladder lock includes a fixed frame and a pedal, wherein the fixed frame is arranged on a side wall of the ladder column, and the pedal is arranged on a surface of the fixed frame away from the ladder column, and the pedal is located below the clamp.
[0007] By adopting the above technical solution, the ladder lock is configured in the form of a fixed frame and a pedal, which facilitates the rapid assembly or disassembly of the ladder lock, thereby improving the convenience of using the ladder lock.
[0008] Optionally, a sliding block is provided on the side of the fixed frame facing the ladder column, and a clearance groove is provided on the side wall of the ladder column for the sliding block to enter and slide, the clearance groove is opened along the length direction of the ladder column, the interior of the ladder column is hollow, the clearance groove is connected to the interior of the ladder column, and a driving mechanism for driving the ladder lock to slide is provided on the ladder column.
[0009] By adopting the above technical solution, the ladder lock and the ladder column are set in the form of a sliding connection, which makes it easy to adjust the position of the ladder lock to facilitate the staff to enter and exit the ladder body, thereby further improving the convenience of the ladder lock of the present application when in use.
[0010] Optionally, the driving mechanism includes a rotating shaft, a winding drum, a lifting chain and a rotating wrench, the rotating shaft is rotatably connected to the inner wall of the ladder column, the winding drum is sleeved on the peripheral wall of the rotating shaft, the lifting chain is reeled on the peripheral wall of the winding drum, the other end of the lifting chain is connected to a sliding block, one end of the rotating shaft extends out of the ladder column, and the end of the rotating shaft extending out of the ladder column is provided with a prismatic column, the rotating wrench is penetrated by a prismatic hole for the prismatic column to be inserted, the end of the prismatic column passing through the prismatic hole is provided with a limiting plate, the side wall of the ladder column is provided with a plurality of positioning protrusions, and the side wall of the rotating wrench is provided with a positioning groove for the positioning protrusions to be pressed into.
[0011] By adopting the above technical solution, when the ladder lock needs to be adjusted, the rotating wrench is pulled to disengage the rotating wrench from the positioning protrusion, so that the rotating wrench can drive the rotating shaft and the winding drum to rotate, thereby unwinding or reeling the lifting chain, so that the ladder lock follows the rotation direction of the rotating wrench to perform corresponding lifting actions. The structure is simple and easy to implement.
[0012] Optionally, a magnetic member is provided on the side wall of the rotating wrench facing the ladder column, and a magnetic attraction groove for the magnetic member to enter is opened on the side wall of the ladder column, and the magnetic member is magnetically attracted to the inner wall of the magnetic attraction groove.
[0013] By adopting the above technical solution, the provision of a magnetic part can improve the stability of the rotating wrench when it is not in use, thereby preventing the rotating wrench from accidentally separating from the positioning protrusion, causing the rotating wrench to spontaneously deflect, thereby effectively improving the overall stability of the drive assembly.
[0014] Optionally, two groups of the rotating shaft, winding drum and lifting chain are provided, and the ladder column, rotating shaft, winding drum and lifting chain correspond to each other one by one. One of the vertical poles is arranged between the winding drums on both sides. The interior of the vertical pole is hollow, and a linkage rod is arranged in the hollow part of the vertical pole. The linkage rod is used to connect the winding drums on both sides.
[0015] By adopting the above technical solution and setting a linkage rod, the staff only needs to rotate the wrench to synchronously drive the two ends of the fixed frame to rise and fall, so as to ensure the stability of the ladder lock and prevent the ladder lock from getting stuck during the lifting process.
[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. The hoop can form an enclosing structure with the ladder column and the vertical pole to prevent the staff from falling when climbing. The middle platform and the top platform can provide a stable foothold for the staff to work or rest. The ladder lock can block the opening at the bottom of the ladder body to prevent the staff from falling from the opening, thereby improving the safety of the ladder during use; 2. The ladder lock and the ladder column are set in a sliding connection form, which is convenient for adjusting the position of the ladder lock to facilitate the staff to enter and exit the ladder body, thereby further improving the convenience of the ladder lock in use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of a high-safety ladder in an embodiment of the present application.
[0018] Figure 2 It is a schematic diagram of the structure of the ladder lock in the embodiment of the present application.
[0019] Figure 3 yes Figure 1 A partial enlarged view of point A in the middle.
[0020] Figure 4 It is a cross-sectional view of the ladder body in the embodiment of the present application.
[0021] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle.
[0022] Explanation of the reference numerals: 1. Ladder body; 11. Ladder column; 111. Make way groove; 112. Positioning protrusion; 113. Magnetic suction groove; 12. Vertical pole; 13. Clamp; 2. Intermediate platform; 3. Top platform; 4. Ladder lock; 41. Fixed frame; 411. Sliding block; 42. Pedal; 5. Driving mechanism; 51. Rotating shaft; 511. Prismatic column; 512. Limiting plate; 52. Winding drum; 53. Lifting chain; 54. Turning wrench; 541. Prismatic hole; 542. Positioning groove; 543. Magnetic part; 6. Linking rod. DETAILED DESCRIPTION
[0023] The following is combined with Figure 1-5 This application is described in further detail.
[0024] The present application embodiment discloses a high-safety ladder. Figure 1 , including two ladder bodies 1, an intermediate platform 2 and a top platform 3. The two ladder bodies 1 are distributed up and down, the intermediate platform 2 is arranged between the two ladder bodies 1, and the top platform 3 is arranged at the top of the upper ladder body 1. The intermediate platform 2 and the top platform 3 provide standing points for workers to rest or work. In this embodiment, the intermediate platform 2 and the top platform 3 are both provided with handrails to improve safety.
[0025] Reference Figure 1 The ladder body 1 includes two vertically arranged ladder columns 11, a plurality of vertical rods 12 and a plurality of clamps 13. The plurality of vertical rods 12 are connected between the ladder columns 11 on both sides by welding. The clamp 13 is arc-shaped, one end of which is connected to the ladder column 11 on one side, and the other end is connected to the vertical column on the other side. The vertical rods 12 and the clamps 13 are distributed along the length direction of the vertical columns. Within the range surrounded by the ladder columns 11, the vertical rods 12 and the clamps 13, the risk of direct falling of the staff can be effectively reduced to improve safety.
[0026] Reference Figure 1 and Figure 2 A ladder lock 4 is provided at the bottom opening of the ladder body 1, and the ladder lock 4 includes a fixing frame 41 and a pedal 42. The fixing frame 41 is provided on the side wall of the ladder column 11, and the pedal 42 is provided on the surface of the fixing frame 41 away from the ladder column 11. In this embodiment, the pedal 42 is located below the clamp 13 to cover the opening below the clamp 13.
[0027] Reference Figure 2 , Figure 3 and Figure 4 A sliding block 411 is provided on the side wall of the fixed frame 41 facing the ladder column 11. The interior of the ladder column 11 is hollow. A clearance groove 111 is provided on the side wall of the ladder column 11 facing the sliding block 411. The clearance groove 111 is communicated with the interior of the ladder column 11. The clearance groove 111 is opened along the length direction of the ladder column 11. In this embodiment, the sliding block 411 is slidably connected to the interior of the ladder column 11. The cross-section of the sliding block 411 is T-shaped, and the size of the thinner end of the sliding block 411 is adapted to the width of the clearance groove 111; a driving mechanism 5 is provided on the ladder column 11 to drive the ladder lock 4 to rise and fall, thereby facilitating the staff to enter and exit the ladder.
[0028] Reference Figure 2 , Figure 4 and Figure 5The driving mechanism 5 includes two rotating shafts 51, two winding drums 52, two lifting chains 53 and a rotating wrench 54, wherein the ladder column 11, the sliding block 411, the rotating shaft 51, the winding drum 52 and the lifting chain 53 are arranged one by one; the rotating shaft 51 is rotatably connected to the inside of the corresponding ladder column 11. In this embodiment, the two rotating shafts 51 and one of the vertical rods 12 of the ladder body 1 are arranged along the same straight line direction. The vertical rod 12 is hollow inside and is provided with a linkage rod 6 for connecting the rotating shafts 51 on both sides. The winding drum 52 is sleeved on the peripheral wall of the corresponding rotating shaft 51 to rotate with the rotating shaft 51. The lifting chain 53 is wound on the peripheral wall of the winding drum 52, and one end is connected to the corresponding sliding block 411. When the lifting chain 53 is wound or unwound, it can drive the sliding block 411 to rise or fall.
[0029] Reference Figure 4 and Figure 5 One end of a rotating shaft 51 is arranged through the ladder column 11, and a prismatic column 511 is coaxially formed at one end of the rotating shaft 51 passing through the ladder column 11. A rotating wrench 54 is arranged outside the ladder column 11. The rotating wrench 54 includes a disc portion and a wrench portion. The disc portion is penetrated by a prismatic hole 541 for the prismatic column 511 to pass through. A limiting piece 512 is arranged at one end of the prismatic column 511 passing through the prismatic hole 541. The limiting piece 512 cannot pass through the prismatic hole 541, thereby preventing the rotating wrench 54 from falling off. The rotating wrench 54 can slide along the prismatic column 511. By rotating the rotating wrench 54, the rotating shaft 51 can be driven to rotate.
[0030] Reference Figure 4 and Figure 5 A plurality of positioning protrusions 112 are provided on the side wall of the ladder column 11, and a positioning groove 542 is provided on the disc portion of the rotating wrench 54 for the positioning protrusions 112 to be pressed into. When the positioning protrusions 112 are located in the positioning grooves 542, the rotating wrench 54 can be locked to prevent the rotating wrench 54 from rotating; a magnetic member 543 is provided on the side wall of the rotating wrench 54 facing the ladder column 11, and a magnetic suction groove 113 is provided on the side wall of the ladder column 11. The magnetic member 543 is magnetically attracted to the inner wall of the magnetic suction groove 113 to ensure the stability of the rotating wrench 54 and prevent the rotating wrench 54 from falling off from the positioning protrusions 112.
[0031] The implementation principle of a high-safety ladder in the embodiment of the present application is as follows: when using the ladder, the staff climbs upward along the ladder body 1 below, and when entering the range of the clamp 13, pulls the rotating wrench 54 to disengage the rotating wrench 54 from the positioning protrusion 112, rotates the rotating wrench 54, drives the rotating shaft 51 and the winding drum 52 to rotate forward, and reels the lifting chain 53 on the peripheral wall of the winding drum 52. At this time, the ladder lock 4 rises and blocks the bottom opening of the bottom ladder body 1 to prevent the staff from falling. After adjusting to the appropriate position, push the rotating wrench 54 toward the ladder column 11; when the staff completes the work, they only need to rotate the rotating wrench 54 in the opposite direction to achieve the descent of the ladder lock 4, making it convenient for the staff to leave the ladder.
[0032] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A high-safety ladder, characterized by: The invention comprises two vertically arranged ladder bodies (1), an intermediate platform (2) and a top platform (3); the ladder body (1) comprises two vertically arranged ladder columns (11), a plurality of vertical rods (12) and a plurality of hoops (13); the plurality of vertical rods (12) are arranged between the ladder columns (11) on both sides; the hoops (13) are arc-shaped; the two ends of the hoops (13) are respectively connected to the side walls of the ladder columns (11) on both sides; the plurality of hoops (13) are distributed along the length direction of the ladder columns (11); the two ladder bodies (1) are arranged up and down; the intermediate platform (2) is arranged between the two ladder bodies (1); the top platform (3) is arranged at the top of the upper ladder body (1); and a ladder lock (4) is arranged at the bottom of the lower ladder body (1).
2. A high-safety ladder according to claim 1, characterized in that: The ladder lock (4) comprises a fixing frame (41) and a pedal (42), wherein the fixing frame (41) is arranged on a side wall of a ladder column (11), and the pedal (42) is arranged on a surface of the fixing frame (41) away from the ladder column (11), and the pedal (42) is located below the clamp (13).
3. A high-safety ladder according to claim 2, characterized in that: A sliding block (411) is arranged on a side of the fixing frame (41) facing the ladder column (11); a clearance groove (111) for the sliding block (411) to enter and slide is provided on a side wall of the ladder column (11); the clearance groove (111) is provided along the length direction of the ladder column (11); the interior of the ladder column (11) is hollow; the clearance groove (111) is communicated with the interior of the ladder column (11); and a driving mechanism (5) for driving the ladder lock (4) to slide is provided on the ladder column (11).
4. A high-safety ladder according to claim 3, characterized in that: The driving mechanism (5) comprises a rotating shaft (51), a winding drum (52), a lifting chain (53) and a rotating wrench (54); the rotating shaft (51) is rotatably connected to the inner wall of the ladder column (11); the winding drum (52) is sleeved on the peripheral wall of the rotating shaft (51); the lifting chain (53) is rolled up on the peripheral wall of the winding drum (52); the other end of the lifting chain (53) is connected to the sliding block (411); one end of the rotating shaft (51) extends out of the ladder column (11); the rotating shaft (5 1) A prismatic column (511) is arranged at one end extending out of the ladder column (11), a prismatic hole (541) is provided through the rotating wrench (54) for the prismatic column (511) to be inserted, a limiting piece (512) is arranged at one end of the prismatic column (511) passing through the prismatic hole (541), a plurality of positioning protrusions (112) are arranged on the side wall of the ladder column (11), and a positioning groove (542) is provided on the side wall of the rotating wrench (54) for the positioning protrusions (112) to be pressed into.
5. A high-safety ladder according to claim 4, characterized in that: A magnetic piece (543) is provided on the side wall of the rotating wrench (54) facing the ladder column (11), and a magnetic attraction groove (113) for the magnetic piece (543) to enter is opened on the side wall of the ladder column (11), and the magnetic piece (543) is magnetically attracted to the inner wall of the magnetic attraction groove (113).
6. A high-safety ladder according to claim 4, characterized in that: The rotating shaft (51), the winding drum (52), and the lifting chain (53) are each provided with two groups, and the ladder column (11), the rotating shaft (51), the winding drum (52), and the lifting chain (53) correspond to each other one by one. One of the vertical rods (12) is provided between the winding drums (52) on both sides, and the vertical rod (12) is hollow inside. A linkage rod (6) is provided in the hollow part of the vertical rod (12), and the linkage rod (6) is used to connect the winding drums (52) on both sides.