Sliding type overhauling crawling ladder suitable for steel structure factory building

Abstract

The utility model discloses a sliding type maintenance ladder stand suitable for a steel structure factory building, which comprises a vertically arranged straight ladder section, a sliding chute and a slide ladder section, the straight ladder section is fixed on the outer vertical surface of the steel structure factory building through a wall connecting piece, the sliding chute is fixed on the straight ladder section, and the ladder stand slides up and down in the sliding chute by means of the slide ladder section. Two different position states of the slide section during use and climbing prevention can be achieved, when the slide section is lowered to abut against the sealing plate, the slide section and the straight ladder section cover the vertical area of the outer vertical face of the steel structure factory building to form a complete climbing ladder area, after use is completed, the slide section is pushed upwards along the sliding groove, downward movement of the slide section is locked in the vertical direction through the arranged pin shaft, and then the slide section is pushed upwards along the sliding groove. At the moment, the lower half portion of the straight ladder section is not provided with step rods, the anti-climbing effect is achieved, the structural stability, the material using economical efficiency, the operation convenience and the safety of the sliding type overhauling ladder stand are improved, the welding quality problem caused by the material thickness is solved, and good economic benefits and social benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building steel structure maintenance ladder installation, and more specifically, to a sliding maintenance ladder suitable for steel structure workshops. Background Art

[0002] In the field of steel structure installation, a steel ladder is attached to the exterior wall and a protective cage is installed on the top as one of the ways to climb up the roof for maintenance. It is used as a guarantee for safe production work. The roof maintenance ladder is closed during daily work and it is forbidden to climb at will. There are three main anti-climbing measures:

[0003] 1. Add a steel flat door to close the steps of the lower steel ladder to prevent climbing;

[0004] Defects: Steel flat doors are usually fixed by using hinges as the connecting axis for rotation, and the hinges are fixed to the steel ladder columns by on-site welding. Since the hinge material is relatively thin and the welding quality cannot be controlled, it is easy to cause desoldering and the material cannot be firmly fixed.

[0005] Second, add a steel cap at the bottom of the safety cage to prevent climbing;

[0006] Defects exist: The steel cap is fixed at the bottom of the cage. According to the specifications, the height of the bottom of the cage from the ground is 3 meters. There are no protective measures during the process of opening the cap, and the operation is in an unsafe state.

[0007] 3. Fix the ladder sections within a certain height range at the bottom of the steel ladder by clamping and using square tubes to make sliding parts. When not in use, the sliding parts are pushed up and locked, and when in use, they are lowered to prevent climbing.

[0008] Defects exist: the clamping and fixing method is local point, which requires high force on the clamped workpiece; the use of square tubes will lead to waste of materials. Utility Model Content

[0009] The utility model aims to provide a sliding maintenance ladder suitable for a steel structure workshop, so as to solve the technical problem of poor safety of the anti-climbing structure provided on the maintenance ladder in the prior art.

[0010] The sled is equipped with a pair of treads, each of which is connected to a vertical cam, and the treads are connected to the vertical cam by a pair of treads, and the treads are connected to the vertical cam by a pair of treads.

[0011] Preferably, a stepping rod is connected to the bottom of each pair of ladder columns to serve as a starting stepping rod.

[0012] Preferably, the ladder column is an angle steel structure, the slide groove is a channel steel structure, the outer side of one side of the angle steel structure is welded to the adjacent end of the wall connecting member, and the outer side of the other side of the angle steel structure is welded to one of the side wing plates of the channel steel structure, and the notches of the two channel steel structures are arranged opposite to each other.

[0013] Preferably, the slide section includes a pair of vertically arranged flat steels, round steels are vertically spaced apart between the pair of flat steels, and the flat steels are matched with the notches of the channel steel structure and can slide up and down inside the notches of the channel steel structure.

[0014] Preferably, the bottom of the sealing plate is arranged higher than the bottom of the ladder column, and the bottom of the ladder column is arranged higher than the ground.

[0015] Preferably, the facade of the steel structure factory building has purlins, the wall connecting members are arranged in the horizontal direction and spaced apart in the vertical direction, one end of each of the wall connecting members is bolted to the purlin, and the other end is welded and fixed to the ladder column.

[0016] Preferably, the pin shaft is a pin structure, a locking hole is provided at the tail end of the pin structure, and a lock is inserted into the locking hole to lock the pin shaft.

[0017] Preferably, a rubber sleeve is also sleeved on the pin shaft, the rubber sleeve is located between the lock and the head of the pin shaft, and the bottom of the slide section is supported on the rubber sleeve.

[0018] The utility model at least includes the following beneficial effects: the sliding maintenance ladder suitable for steel structure workshops mainly includes a vertically arranged straight ladder section, a slide groove, and a slide section. The straight ladder section is fixed to the outer facade of the steel structure workshop through a wall connecting piece, and the slide groove is fixed on the straight ladder section. Relying on the slide section to slide up and down in the slide groove, the slide section can realize two different position states when in use and when preventing climbing. When the slide section is lowered to contact the sealing plate, it covers the vertical area of ​​the outer facade of the steel structure workshop with the straight ladder section to form a complete ladder area. After use, the slide section is pushed up along the slide groove, and the slide section is locked vertically downward by the arranged pin shaft. At this time, the lower half of the straight ladder section is in a state without a step rod, which plays an anti-climbing role. The sliding maintenance ladder is improved in terms of structural stability, economical material use, convenient operation and safety, solves the welding quality problem caused by material thickness, and has good economic and social benefits.

[0019] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a main structural diagram of the utility model when the slide section is lowered;

[0021] Figure 2 This is a main structural diagram of the utility model when the slide section is pushed upward;

[0022] Figure 3 It is a side structural diagram of the utility model;

[0023] Figure 4 It is a top view structural diagram of the sliding ladder of the utility model in the AA direction;

[0024] Figure 5 It is an enlarged top view of the pin shaft of the utility model.

[0025] Explanation of the reference numerals in the drawings in the specification: 1. straight ladder section, 2. slide ladder section, 3. slide groove, 4. ladder column, 5. step rod, 6. wall connecting piece, 7. sealing plate, 8. pin hole, 9. pin shaft, 10. purlin, 11. lock hole, 12. flat steel, 13. rubber sleeve, 14. cage. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0027] In the description of the present invention, terms such as "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1-5 As shown, the utility model is suitable for a sliding maintenance ladder for a steel structure factory building, comprising a sliding ladder and a guard cage 14, wherein the sliding ladder comprises a vertically arranged straight ladder section 1 and a slide section 2, wherein the guard cage 14 is arranged around the outer side of the upper end of the straight ladder section 1, wherein the straight ladder section 1 comprises a pair of vertically arranged ladder columns 4, wherein a stepping rod 5 is connected between the upper ends of the pair of ladder columns 4 along a vertical interval, wherein each ladder column 4 is detachably fixedly connected to the outer facade of the steel structure factory building by arranging a wall connecting member 6, wherein the pair of ladder columns 4 are ... A slide groove 3 is vertically fixed on one side of the ladder column 4 facing away from the steel structure factory building. The notches of a pair of slide grooves 3 are arranged opposite to each other. The bottom cover of the slide groove 3 is provided with a sealing plate 7. The pair of slide grooves 3 are slidably connected with the slide section 2 together. When the slide section 2 slides to the bottom and abuts against the sealing plate 7, the slide section 2 and the straight ladder section 1 form a complete pedestrian ladder in the vertical direction. A pin hole 8 is opened in the middle of the slide groove 3, and a pin shaft 9 is penetrated in the pin hole 8. The pin shaft 9 is used to support upward and lock the bottom of the slide section 2 to move downward.

[0029] The straight ladder section 1, the slide section 2, the chute 3, the wall connection 6, and the cage 14 are manufactured in the factory and can be assembled and welded by various steel materials to ensure processing accuracy and welding quality. After forming a whole, they are hot-dip galvanized. The straight ladder section 1 is detachably fixed to the facade of the steel structure factory building through the angle steel of the wall connection 6. As the main supporting body of the entire sliding maintenance ladder, the straight ladder section 1 is executed according to the design atlas. For example, the bottom of the cage 14 is designed to be about 3000mm above the ground, and the stepping distance is about 100mm. The distance also meets the requirements of the design drawings, which is convenient for stepping up and down. No step rod 5 is set at the bottom of the straight stair section 1, and the slide section 2 has a step structure of a complete area. A slide groove 3 with a length of 2400mm is welded on the outer side of the straight stair section 1, that is, the side facing away from the steel structure factory building, and the slide section 2 with a length of 1200mm is placed in the slide groove 3 from top to bottom. The sealing plate 7 at the bottom of the slide groove 3 limits the support of the slide section 2, and a circular pin hole 8 is opened on the side of the slide groove 3 at a height of about 1700mm from the ground.

[0030] When the slide section 2 is lowered along the slide groove 3 until it contacts the sealing plate 7, it covers the vertical area of ​​the outer facade of the steel structure factory building to form a complete ladder. The maintenance personnel can climb the slide section 2 and the straight ladder section 1 from the ground in turn to reach the maintenance place. After use, the slide section 2 is pushed up along the slide groove 3, and the pin shaft 9 is inserted into the pin hole 8 to just below the bottom end of the slide section 2 to temporarily support and fix the slide section 2, which plays a locking role. At this time, the lower half of the straight ladder section 1 is in a state of no ladder section, which plays an anti-climbing role.

[0031] The utility model is suitable for the sliding maintenance ladder of steel structure workshops, which is improved in structural stability, economical use of materials, convenient operation and safety, solves the welding quality problem caused by material thickness, eliminates the steel door and replaces it with a sliding part, which is more economical.

[0032] In another technical solution, Figure 1-2 As shown, the bottom of the pair of ladder columns 4 is connected to a stepping rod 5 as the starting stepping rod 5. The starting stepping rod 5 is retained to form a whole with the ladder columns 4, and the structural stability is guaranteed.

[0033] In another technical solution, Figure 1-5 As shown, the ladder column 4 is an angle steel structure, the slide groove 3 is a channel steel structure, the outer side of one side of the angle steel structure is welded to the adjacent end of the wall connecting member 6, and the outer side of the other side of the angle steel structure is welded to one of the side wing plates of the channel steel structure, and the notches of the two channel steel structures are arranged opposite to each other.

[0034] In terms of materials and processing, angle steel and channel steel are used for production. The slide 3 can be made of 5# channel steel and connected to the straight ladder section 1 by welding. The installation range is controlled within 510-2950mm from the ground. The bottom of the slide 3 uses a steel plate of the same thickness as the sealing plate 7 for welding and sealing. After the slide section 2 is lowered, it falls on the sealing plate 7 to be more stable, and no additional pin shaft is required for locking.

[0035] In another technical solution, Figure 4-5 As shown, the slide section 2 includes a pair of vertically arranged flat steels 12, and round steels are connected between the pair of flat steels 12 along vertical intervals. The flat steels 12 are arranged in cooperation with the notches of the channel steel structure and can slide up and down inside the notches of the channel steel structure.

[0036] The slide section 2 is made of flat steel 12 and round steel. The slide section 2 is made of a flat steel 12 with a length of 1200 mm and four round steels. The round steel is used as a step structure. The shape of the flat steel 12 is similar to the inner side of the channel steel, and the processing is convenient.

[0037] In another technical solution, Figure 1-2As shown, the bottom of the sealing plate 7 is arranged higher than the bottom of the ladder column 4, and the bottom of the ladder column 4 is arranged higher than the ground, which reduces the setting length of the overall ladder, reduces the production cost, and prevents climbing.

[0038] In another technical solution, Figure 1-3 As shown, the facade of the steel structure factory building is provided with purlins 10, and the wall connecting members 6 are arranged in the horizontal direction and spaced apart in the vertical direction. One end of each of the wall connecting members 6 is bolted to the purlin 10, and the other end is welded and fixed to the ladder column 4.

[0039] In terms of installation, the wall connecting piece 6 and the ladder column 4 are welded, and the wall connecting piece 6 and the wall purlin 10 are bolted, so that the straight ladder section 1 and the wall attachment as a whole are easy to remove from the wall.

[0040] In another technical solution, Figure 5 As shown, the pin shaft 9 is a pin structure, and a lock hole 11 is opened at the tail end of the pin structure. A lock is inserted into the lock hole 11 to lock the pin shaft 9 to prevent the slide section 2 from moving down at will for climbing. A lock with a key that is easy to pass through the lock hole 11 can be selected.

[0041] In another technical solution, Figure 5 As shown, a rubber sleeve 13 is also sleeved on the pin shaft 9 , and the rubber sleeve 13 is located between the lock and the head of the pin shaft 9 , and the bottom of the slide section 2 is supported on the rubber sleeve 13 .

[0042] The head of the pin shaft 9 is limited to the outside of the slide groove 3, and the rod section of the pin shaft 9 is located in the notch of the slide groove 3. The rubber sleeve 13 is arranged on the rod part of the pin shaft 9 to protect the pin shaft 9 to a certain extent. After the slide section 2 slides down, it directly contacts the rubber sleeve 13, which plays a buffering role, increases the friction of the contact surface, and provides a more stable support without hindering the setting and use of the lock.

[0043] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the drawings shown and described herein.

Claims

1. A sliding maintenance ladder suitable for steel structure workshops, characterized in that: The utility model comprises a sliding ladder and a protective cage. The sliding ladder comprises a vertically arranged straight ladder section and a slide section. The protective cage is arranged on the outer side of the upper end of the straight ladder section. The straight ladder section comprises a pair of vertically arranged ladder columns. A step rod is connected along the vertical interval between the upper ends of the pair of ladder columns. Each ladder column is detachably fixed to the facade of the steel structure factory building by arranging a wall connecting piece. Slide grooves are respectively fixed vertically on the sides of the ladder columns of the pair of ladder columns facing away from the steel structure factory building. The grooves of the pair of slide grooves are arranged oppositely. The bottom cover of the slide grooves is provided with a sealing plate. The slide section is slidably connected in the pair of slide grooves together. When the slide section slides to the bottom and contacts the sealing plate, the slide section and the straight ladder section form a complete pedestrian ladder in the vertical direction. A pin hole is opened in the middle of the slide groove. A pin shaft is passed through the pin hole. The pin shaft is used to support upward and lock the bottom of the slide section to move downward.

2. The sliding maintenance ladder suitable for steel structure workshops as claimed in claim 1, characterized in that: A stepping rod is connected to the bottom of a pair of ladder columns to serve as a starting stepping rod.

3. The sliding maintenance ladder suitable for steel structure workshops as claimed in claim 1 is characterized in that: The ladder column is an angle steel structure, and the slide groove is a channel steel structure. The outer side of one side of the angle steel structure is welded to the adjacent end of the wall connecting member, and the outer side of the other side of the angle steel structure is welded to one side wing plate of the channel steel structure. The notches of the two channel steel structures are arranged opposite to each other.

4. The sliding maintenance ladder suitable for steel structure workshops as claimed in claim 3 is characterized in that: The slide section includes a pair of vertically arranged flat steels, between which round steels are connected at vertical intervals, and the flat steels are matched with the notches of the channel steel structure and can slide up and down inside the notches of the channel steel structure.

5. The sliding maintenance ladder suitable for steel structure workshops as described in claim 1 is characterized in that: The bottom of the sealing plate is arranged higher than the bottom of the ladder column, and the bottom of the ladder column is arranged higher than the ground.

6. The sliding maintenance ladder suitable for steel structure workshops as claimed in claim 1, characterized in that: The facade of the steel structure factory building is provided with purlins, the wall connecting members are arranged in the horizontal direction and spaced apart in the vertical direction, one end of each of the wall connecting members is bolted to the purlin, and the other end is welded and fixed to the ladder column.

7. The sliding maintenance ladder suitable for steel structure workshops as claimed in claim 1, characterized in that: The pin shaft is a pin structure, a locking hole is provided at the tail end of the pin structure, and a lock is inserted into the locking hole to lock the pin shaft.

8. The sliding maintenance ladder suitable for steel structure workshops as claimed in claim 7, characterized in that: A rubber sleeve is also sleeved on the pin shaft, the rubber sleeve is located between the lock and the head of the pin shaft, and the bottom of the slide section is supported on the rubber sleeve.

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