Safety ladder for climbing operation

Abstract

The utility model provides a safety ladder for climbing operation, which comprises a foot stool and an operation platform, a step leading to the operation platform is arranged on one side of the foot stool, a bottom frame is arranged at the lower end of the foot stool, a movable frame is arranged below the bottom frame, moving wheels are arranged at the bottom of the movable frame, a driving rod is arranged on the movable frame, and the movable frame can move up and down through the driving rod. A blocking piece perpendicular to the driving rod is fixed to the upper end of the driving rod. When the movable frame moves downwards, the moving wheels are lower than the supporting legs of the foot stool to jack up the foot stool to support the safety ladder, and when the movable frame moves upwards, the moving wheels leave the ground, and the supporting legs support the safety ladder; when the moving wheels support the safety ladder, the blocking piece is erected on the second step of the foot stool, the blocking piece protrudes out of the second step and covers the first step next to the second step, and the covering width of the blocking piece is not smaller than two thirds of the width of the first step. According to the utility model, the operation position can be flexibly moved and changed, the operation flexibility is improved, and the operation safety is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a climbing auxiliary device technical field especially relates to a kind of safety ladder for climbing operation. BACKGROUND

[0002] On factory or construction site, climbing ladder is often used to climb operation.The existing climbing ladder generally includes foot support and operation platform, and the operation platform is fixed at the top of the foot support.In order to facilitate operation, the climbing ladder needs to be moved to different operation positions by manual moving or dragging, which is very inconvenient and laborious, especially when the moving distance is far.In order to facilitate the movement of the climbing ladder, a moving wheel is arranged at the bottom of the foot support, but the arrangement of the moving wheel causes many safety accidents, and the moving wheel causes the climbing ladder to slide during operation, resulting in safety accidents.Therefore, it is necessary to develop a climbing safety device that cannot operate without locking the moving wheel during operation. SUMMARY

[0003] The utility model aims at providing a safety ladder for climbing operation to overcome the deficiencies in the prior art.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a safety ladder for climbing operation, comprising a foot support and an operation platform, wherein one side of the foot support is a ladder to the operation platform, and the lower end of the foot support is a bottom frame, a movable frame is arranged below the bottom frame, a moving wheel is arranged at the bottom of the movable frame, a driving rod is arranged on the movable frame and can move up and down through the driving rod, and a blocking piece is fixed at the upper end of the driving rod and arranged vertically thereto; when the movable frame moves down, the moving wheel is lower than the supporting leg of the foot support, the foot support is lifted to support the safety ladder, when the movable frame moves up, the moving wheel leaves the ground, and the supporting leg supports the safety ladder; when the moving wheel supports the safety ladder, the blocking piece is arranged on the second ladder of the foot support, the blocking piece protrudes from the second ladder and covers the first ladder below the second ladder, and the covering width is not less than 2 / 3 of the width of the first ladder.

[0005] Further, the safety ladder for climbing operation described above, the movable frame is connected to the bottom frame by four connecting rods, the four connecting rods are arranged in parallel, the upper end of the connecting rod is hinged to the bottom frame, and the lower end is hinged to the movable frame, the movable frame, the bottom frame and the four connecting rods form a parallelogram 4-link structure, and the bottom frame limits the upward stroke of the movable frame.

[0006] Further, the safety ladder for climbing operation described above, the driving rod is provided with two driving rods, which are symmetrically arranged on the inner side of the foot support and are hinged to the bottom frame and the movable frame, and the lower end of the driving rod is arranged in coincidence or parallel with the connecting rod on one side of the movable frame.

[0007] Further, the safety ladder for climbing operation has the blocking member, the driving rod and the lifting wheel, and the working state of the safety ladder is converted, so that the operation position is changed flexibly, the flexibility is good, and the operation is simple.

[0008] Further, the safety ladder for climbing operation has the blocking member, the driving rod and the lifting wheel, and the working state of the safety ladder is converted, so that the operation position is changed flexibly, the flexibility is good, and the operation is simple.

[0009] Further, the safety ladder for climbing operation has the blocking member, the driving rod and the lifting wheel, and the working state of the safety ladder is converted, so that the operation position is changed flexibly, the flexibility is good, and the operation is simple.

[0010] Further, the safety ladder for climbing operation has the blocking member, the driving rod and the lifting wheel, and the working state of the safety ladder is converted, so that the operation position is changed flexibly, the flexibility is good, and the operation is simple.

[0011] Further, the safety ladder for climbing operation has the blocking member, the driving rod and the lifting wheel, and the working state of the safety ladder is converted, so that the operation position is changed flexibly, the flexibility is good, and the operation is simple.

[0012] Further, the safety ladder for climbing operation has the blocking member, the driving rod and the lifting wheel, and the working state of the safety ladder is converted, so that the operation position is changed flexibly, the flexibility is good, and the operation is simple.

[0013] Compared with the prior art, the safety ladder for climbing operation has the following beneficial effects: the blocking member, the driving rod and the lifting wheel are arranged, the working state of the safety ladder is converted, the operation position is changed flexibly, the flexibility is good, and the operation is simple; the worker must remove the blocking member before climbing the ladder for operation, the removal of the blocking member drives the driving rod to move, the movable frame is lifted as a whole, the lifting wheel is separated from the ground, the supporting leg supports the ground, the safety ladder does not move during operation, and the safety accident caused by the worker not locking the lifting wheel is avoided; the movable fence is arranged on the operation platform, and the operation safety is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor.

[0015] Figure 1 It is a schematic view of the safety ladder for climbing operation according to the present application.

[0016] Figure 2 It is a main view structural schematic diagram of the safety ladder for climbing operation of the utility model;

[0017] In the figure: 1, foot support; 11, bottom frame; 12, supporting foot; 13, ladder two; 14, ladder one; 2, operation platform; 3, movable frame; 4, moving wheel; 5, drive rod; 6, blocking piece; 61, extension rod; 62, handle; 7, connecting rod; 8, movable fence; 81, movable rod; 82, clamping seat; 83, pin shaft; 9, fixed fence; 91, reinforcing plate; 10, foot pad. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] Embodiment 1

[0020] As shown in Figure 1 , 2 A safety ladder for climbing operation, comprising a foot support 1 and an operation platform 2, one side of the foot support 1 is a ladder to the operation platform, the lower end of the foot support 1 is a bottom frame 11, the bottom frame 11 is provided with a movable frame 3 below, the movable frame 3 is provided with a moving wheel 4 at the bottom, the movable frame 3 is provided with a drive rod 5 on the upper end and can move up and down through the drive rod 5, the upper end of the drive rod 5 is fixedly provided with a blocking piece 6 arranged perpendicularly thereto; when the movable frame 3 moves downward, the moving wheel 4 is lower than the supporting foot 12 of the foot support 1, the moving wheel 4 lifts the foot support 1 to support the safety ladder, when the movable frame 3 moves upward, the moving wheel 4 leaves the ground, the supporting foot 12 abuts against the ground to support the safety ladder; when the moving wheel 4 supports the safety ladder, the blocking piece 6 is arranged on the ladder two 13 of the foot support 1, and the blocking piece 6 protrudes from the ladder two 13 and covers the next ladder one 14 of the ladder two 13, and the covering width is not less than 2 / 3 of the width of the ladder one 14.

[0021] The sum of the heights of the first ladder 14, the second ladder 13 and the supporting leg 12 is greater than 0.6 meters, so that the height of the blocking piece 6 to the ground is greater than 0.6 meters, and the blocking piece 6 covers 2 / 3 of the first ladder 14, so that the worker is not convenient to step on the first ladder and is not convenient to directly step on the second ladder, so that the worker must remove the blocking piece from the second ladder 13 before climbing the ladder, and the removal of the blocking piece 6 can drive the driving rod 5 to move, so that the movable frame 3 is lifted as a whole, the moving wheel 4 is separated from the ground, and the supporting leg 12 abuts against the ground to support the safety ladder, so that the safety ladder will not be displaced during operation, and safety accidents caused by the worker not locking the moving wheel are avoided. The utility model not only can flexibly move and change the operation position, improves the operation flexibility, but also ensures the operation safety.

[0022] As shown in Figure 1 , 2 , the movable frame 3 is connected with the bottom frame 11 through four connecting rods 7, the four connecting rods 7 are arranged in parallel, the upper end of the connecting rod 7 is hinged to the bottom frame 11, the lower end is hinged to the movable frame 3, and the movable frame 3, the bottom frame 11 and the four connecting rods 7 form a parallelogram 4 connecting rod structure. When the blocking piece 6 is pushed backward, the movable frame 3 moves upward, and after moving a distance, it is limited by the bottom surface of the bottom frame 11, the connecting rod 7 and the bottom frame 11 limit the backward rotation stroke of the driving rod 5, so that the handle 62 of the blocking piece 6 is not too far away from the ladder, and the worker is convenient to operate.

[0023] As shown in Figure 1 , 2 , the driving rod 5 is provided with two, which are symmetrically arranged in the inside of the foot stool 1 and are hinged to the bottom frame 11 and the movable frame 3, and the lower end of the driving rod 5 is coincidentally arranged or arranged in parallel with the connecting rod 7 arranged on one side of the movable frame 3, and the position of the driving rod 5 can be adjusted according to actual needs, and in the embodiment, the driving rod 5 is coincidentally arranged with the connecting rod 7.

[0024] As shown in Figure 1 , the blocking piece 6 is a U-shaped frame, comprising two extension rods 61 and a handle 62 arranged between the two extension rods 61, one end of the extension rod 61 is fixedly connected with the upper end of the driving rod 5, the handle 62 is made of a circular pipe, which is convenient to hold, and the driving rod 61 and the extension rod 5 are both made of square steel.

[0025] Embodiment 2

[0026] Based on the structure of embodiment 1, as shown in Figure 1 , 2As shown, the working platform 2 is provided with a movable fence 8 on one side of the ladder and a fixed fence 9 on the other side. Specifically, the movable fence 8 comprises a movable rod 81, a clamping seat 82 and a pin shaft 83, one end of the movable rod 81 is hinged to the fixed fence 9 through the pin shaft 83, the other end is movably connected to the clamping seat 82, and the inner side of the clamping seat 82 is provided with a magnet, which is located in a circular tube of the fixed fence. The clamping seat 82 is fixed on the fixed fence 9, and fences are also provided on both sides of the ladder. When the workers work on the working platform, the movable rod 81 can be rotated and clamped into the clamping seat 82, and the movable end of the movable rod 81 is attracted to the clamping seat 82 by the magnet, so that the movable fence 8 is stable when closed, and the working platform is closed with the fixed fence 9 to improve the operation safety.

[0027] In addition, as Figure 1 As shown, the fixed fence 9 is provided with a reinforcing plate 91 on one side facing the movable fence 8, so that the structure of the fixed fence 9 is more stable.

[0028] The bottom of the supporting leg 12 is provided with a foot pad 10, and the supporting area of the foot pad 10 is larger than that of the supporting leg 12. In order to further improve the skid resistance of the foot pad, a skid pad, skid lines or the like can be arranged on the ground of the foot pad. The foot pad 10 is connected to the supporting leg 12 through an adjusting screw, so that the height of the supporting leg 12 to the ground can be adjusted, and the flexibility is better.

[0029] For those skilled in the art, it is obvious that the present application is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present application is described in the specification, each embodiment does not contain only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be combined to form other embodiments which can be understood by those skilled in the art.

Claims

1. A safety ladder for climbing work, comprising a foot frame and a working platform, wherein one side of the foot frame is a step leading to the working platform, and the lower end of the foot frame is a bottom frame, characterized in that: A movable frame is provided under the bottom frame, and a moving wheel is provided at the bottom of the movable frame. A driving rod is provided on the movable frame and can move up and down through the driving rod, and a blocking member arranged perpendicular to it is fixed to the upper end of the driving rod; when the movable frame moves downward, the moving wheel is lower than the supporting foot of the tripod, and the tripod is lifted to support the safety ladder; when the movable frame moves upward, the moving wheel leaves the ground, and the supporting foot supports the safety ladder; when the moving wheel supports the safety ladder, the blocking member is erected on the second step of the tripod, and the blocking member protrudes from the second step and covers the next step one of the second step, and its covering width is not less than 2 / 3 of the width of the first step.

2. The safety ladder for climbing work according to claim 1, characterized in that: The movable frame is connected to the bottom frame through four connecting rods. The four connecting rods are arranged in parallel, and the upper ends of the connecting rods are hinged to the bottom frame, and the lower ends are hinged to the movable frame. The movable frame, the bottom frame and the four connecting rods form a parallelogram 4-link structure, and the bottom frame stops the upper movement of the movable frame.

3. The safety ladder for climbing work according to claim 2, characterized in that: There are two driving rods, which are symmetrically arranged on the inner side of the tripod and hinged with the bottom frame and the movable frame. The lower end of the driving rod is overlapped or parallel to the connecting rod on one side of the movable frame.

4. The safety ladder for climbing work according to claim 1, characterized in that: The blocking member is a U-shaped frame, comprising two extension rods and a handle arranged between the two extension rods. One end of the extension rod is fixedly connected to the upper end of the driving rod, and the handle is made of a round tube.

5. The safety ladder for climbing work according to claim 1, characterized in that: A movable fence is provided on one side of the working platform facing the stairs, and fixed fences are provided on the other sides.

6. The safety ladder for climbing work according to claim 5, characterized in that: The movable fence includes a movable rod, a base, and a pin shaft. One end of the movable rod is hinged to the fixed fence through the pin shaft, and the other end is movably connected to the base. The base is fixed on the fixed fence.

7. The safety ladder for climbing work according to claim 6, characterized in that: A magnet is provided on the inner side of the card seat.

8. The safety ladder for climbing work according to claim 5, characterized in that: A reinforcement plate is provided on the side of the fixed fence facing the movable fence.

9. The safety ladder for climbing work according to claim 1, characterized in that: A foot pad is provided at the bottom of the supporting foot, and the foot pad is connected to the supporting foot through an adjusting screw.

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