Safety protection type upright climbing ladder

Abstract

The utility model discloses a safety protection type upright climbing ladder which comprises a climbing ladder body and an anti-falling cage fixed on the climbing ladder body, a horizontal rotating shaft fixedly connected to the climbing ladder body is arranged on one side of the lower port of the anti-falling cage, and a blocking door is mounted on the horizontal rotating shaft; a fixing plate is arranged on the climbing ladder body below the horizontal rotating shaft, an operating rod rotating upwards is hinged to the fixing plate, the operating rod has a locking state and an unlocking state, a connecting rod is hinged to the operating rod, and the end, away from the operating rod, of the connecting rod is hinged to a rotating arm fixedly arranged on the horizontal rotating shaft in a sleeving mode and drives the rotating arm to rotate up and down; a first locking plate is arranged on the operating rod, and a second locking plate matched with the first locking plate is arranged on the fixing plate. The climbing ladder has the advantages that the blocking door can be easily opened and closed, a worker is not affected to climb the climbing ladder body upwards, meanwhile, non-workers are effectively prevented from climbing up at will, and unnecessary safety accidents such as falling and falling are avoided.

Description

Technical Field

[0001] This utility model relates to the field of factory exterior wall maintenance technology, and in particular to a safety-protected vertical ladder. Background Technology

[0002] Vertical ladders are indispensable access devices on the exterior walls of factory buildings, allowing workers to climb to the roof for inspection and maintenance. Currently, national standards require the installation of fall arrestors starting at 2 meters above the ground on vertical ladders to prevent workers from falling while climbing. However, the lowest anti-slip step of the ladder should be as low as possible to the ground to facilitate climbing. If the bottom of the ladder is too low, non-workers can easily climb it and reach the roof, causing greater risks of falls and other safety hazards. Summary of the Invention

[0003] The purpose of this utility model is to provide a safe and protective vertical ladder to address the shortcomings of existing technologies.

[0004] To achieve the above objectives, the present invention can adopt the following technical solution:

[0005] The safety protection type vertical ladder of this utility model includes a vertically arranged ladder body and a fall arrestor cage fixed to the ladder body; a horizontal rotating shaft fixed to the ladder body is provided on one side of the lower port of the fall arrestor cage, and a stop door for blocking the lower port of the fall arrestor cage is installed on the horizontal rotating shaft; a fixed plate is provided on the ladder body located below the horizontal rotating shaft, and an upward rotating control lever is hinged to the fixed plate. The control lever has a locked state fixed to the upper edge of the fixed plate and an unlocked state of upward rotation. A connecting rod is hinged to the control lever, and the end of the connecting rod away from the control lever is hinged to a rotating arm fixed to the horizontal rotating shaft, driving the rotating arm to rotate up and down; a first locking plate is provided on the control lever, and a second locking plate matching the first locking plate is provided on the fixed plate.

[0006] Furthermore, the connecting rod includes an upper connecting rod hinged to the rotating arm and a lower connecting rod hinged to the operating lever. The upper connecting rod is a hollow tube, and the upper end of the lower connecting rod has a length adjusting screw that passes through the upper connecting rod. The lower end of the upper connecting rod is rotatably connected to a screw nut that is screwed onto the length adjusting screw. When the stop door becomes loose due to repeated flipping, the length adjusting screw can be extended into the upper connecting rod by rotating the screw nut, thereby shortening the distance between the upper and lower connecting rods. This pulls the rotating arm downward so that the stop door can be more tightly sealed to the lower end of the anti-fall cage, overcoming the loosening of the stop door and improving its service life.

[0007] Furthermore, the gate is a door panel structure or a space frame structure.

[0008] Furthermore, a flexible rubber sleeve is fitted onto the end of the control lever away from the fixed plate, and anti-slip protrusions are evenly distributed on the outer wall of the flexible rubber sleeve.

[0009] Furthermore, the lower end of the ladder body is 0.7~0.9m above the ground, and the lower end of the fall arrestor is 2~2.5m above the ground.

[0010] The advantages of this utility model are its simple structure and ease of installation and operation. The opening and closing of the door can be easily achieved through the control lever, which does not affect the workers climbing the ladder body while effectively preventing unauthorized climbers from climbing up and avoiding unnecessary falls or other safety accidents. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 yes Figure 1 Enlarged view of part A.

[0013] Figure 3 yes Figure 1 Enlarged view of part B.

[0014] Figure 4 This is a diagram showing the door in the open position. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0017] like Figure 1-4As shown, the safety protection type vertical ladder of this utility model includes a vertically arranged ladder body 1. The ladder body 1 consists of a pair of parallel uprights 1.1 and a plurality of anti-slip steps 1.2 evenly arranged between the two uprights 1.1. When actually installed on the outer wall of the factory building, its lower end is 0.7~0.9m from the ground. At this time, a fall arrestor 2 is installed on the ladder body 1, starting from a distance of 2~2.5m from the ground. The fall arrestor 2 covers the climbing side of the ladder body 1, and its inner side forms a protective passage for workers to climb upward.

[0018] A horizontal rotating shaft 3 fixed to the ladder body 1 is provided on one side of the lower port of the fall arrestor cage 2. A door 4 for blocking the lower port of the fall arrestor cage 2 is installed on the horizontal rotating shaft 3. Specifically, the horizontal rotating shaft 3 is mounted on a fixed block 5 and can rotate along its own axis. The fixed block 5 is welded to one side of the upright 1.1 of the ladder body 1, and the axis of the horizontal rotating shaft 3 is perpendicular to the axis of the upright 1.1 and the anti-slip step 1.2 of the ladder body 1. At this time, the door 4 is a door panel structure or a grid structure fixed to the horizontal rotating shaft 3, which can rotate up and down with the rotation of the horizontal rotating shaft 3 to open or close the lower port of the fall arrestor cage 2.

[0019] A fixing plate 6 is installed on the ladder body 1 located below the horizontal pivot 3. The fixing plate 6 is located directly below the fixing block 5 (i.e., welded to the same upright 1.1 as the fixing block 5). A control lever 7 that can rotate upward is hinged to the fixing plate 6. The control lever 7 has a locking state that is fixed to the upper edge of the fixing plate 6 (e.g., ...). Figure 1 As shown), and the unlocked state when rotated upwards (as shown). Figure 4 (As shown in the diagram) A connecting rod 8 is hinged to the control lever 7. The end of the connecting rod 8 away from the control lever 7 is hinged to a rotating arm 9 fixed on a horizontal rotating shaft 3, which can drive the rotating arm 9 to rotate up and down, thereby enabling the control lever 7 to easily open and close the gate 4. To make the control lever 7 more comfortable to hold, a flexible rubber sleeve 12 can be fitted onto the end of the control lever away from the fixed plate. Anti-slip protrusions are evenly distributed on the outer wall of the flexible rubber sleeve 12. The anti-slip protrusions are integrally formed with the flexible rubber sleeve 12 and are fixed on the control lever 7 to increase the friction when holding it.

[0020] To extend the service life of the gate 4, the connecting rod 8 specifically includes an upper connecting rod 8.1 hinged to the rotating arm 9 and a lower connecting rod 8.2 hinged to the operating lever 7. The upper connecting rod 8.1 is a hollow tube and is coaxially arranged with the lower connecting rod 8.2. The upper end of the lower connecting rod 8.2 has a length adjusting screw 8.3 that passes through the upper connecting rod 8.1, while the lower end of the upper connecting rod 8.1 is rotatably connected to a screw nut 8.4 that is screwed onto the length adjusting screw 8.3. When the gate 4 is repeatedly flipped and becomes loose, the screw nut 8.4 can be rotated to extend the length adjusting screw 8.3 into the upper connecting rod 8.1, thereby shortening the distance between the upper connecting rod 8.1 and the lower connecting rod 8.2, tightening the downward pull of the rotating arm 9 so that the gate 4 can be more tightly sealed to the lower end of the anti-fall cage 2, overcoming the loosening of the gate 4 and extending its service life.

[0021] In addition, a first locking plate 10 is provided on the control lever 7, and a second locking plate 11 matching the first locking plate 10 is provided on the fixed plate 6. The first locking plate 10 has a first locking hole, and the second locking plate 11 has a second locking hole. When the control lever 7 is in the locked state, the first locking plate 10 and the second locking plate 11 fit together, and the first locking hole on the first locking plate 10 and the second locking hole on the second locking plate 11 are aligned. Thus, the first locking plate 10 and the second locking plate 11 can be easily locked by a lock body, thereby fixing the control lever 7 in the locked state. This prevents non-staff members from arbitrarily rotating the control lever 7 to open the door 4 downwards, effectively preventing non-staff members from arbitrarily climbing the ladder body 1 and avoiding unnecessary falls and other safety accidents.

Claims

1. A safety-protected vertical ladder, comprising a vertically arranged ladder body and a fall arrestor cage fixed to the ladder body; characterized in that: A horizontal pivot fixed to the ladder body is provided on one side of the lower port of the fall arrestor cage. A stop door for blocking the lower port of the fall arrestor cage is installed on the horizontal pivot. A fixed plate is provided on the ladder body located below the horizontal pivot. An upward-rotating control lever is hinged to the fixed plate. The control lever has a locked state where it is fixed to the upper edge of the fixed plate and an unlocked state where it rotates upward. A connecting rod is hinged to the control lever. The end of the connecting rod away from the control lever is hinged to a rotating arm fixed to the horizontal pivot, driving the rotating arm to rotate up and down. A first locking plate is provided on the control lever, and a second locking plate that matches the first locking plate is provided on the fixed plate.

2. The safety-protected vertical ladder according to claim 1, characterized in that: The connecting rod includes an upper connecting rod hinged to the rotating arm and a lower connecting rod hinged to the operating lever. The upper connecting rod is a hollow tube. The upper end of the lower connecting rod has a length adjusting screw that passes through the upper connecting rod. The lower end of the upper connecting rod is rotatably connected to a screw nut that is screwed onto the length adjusting screw.

3. The safety-protected vertical ladder according to claim 1, characterized in that: The gate is a door panel structure or a space frame structure.

4. The safety-protected vertical ladder according to claim 1, characterized in that: A flexible rubber sleeve is fitted onto the end of the control lever away from the fixed plate.

5. The safety-protected vertical ladder according to claim 4, characterized in that: The outer wall of the flexible rubber sleeve is evenly covered with anti-slip protrusions.

6. The safety-protected vertical ladder according to claim 1, characterized in that: The lower end of the ladder body is 0.7~0.9m above the ground, and the lower end of the fall arrestor is 2~2.5m above the ground.

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