CN219910175U

CN219910175U - Foldable safety ladder cage

Info

Publication number: CN219910175U
Application number: CN202321595586.1U
Authority: CN
Inventors: 孙同心; 张功祥; 孟震东; 聂硕硕; 林勇
Original assignee: Jining Hao Tong Engineering Machinery Co ltd
Current assignee: Jining Hao Tong Engineering Machinery Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-10-27
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a foldable safety ladder cage which comprises a lower underframe, wherein a plurality of symmetrically arranged main locking frames are arranged at the upper end of the lower underframe, folding upright posts are connected to the main locking frames in a penetrating and sliding mode, a protective net is arranged between the front folding upright posts and the rear folding upright posts, connecting rod seats are arranged on the side walls of the folding upright posts, an upper underframe is arranged between the connecting rod seats, a folding ladder is arranged between the upper underframe and the lower underframe, a telescopic ring is arranged on the folding ladder, a supporting rod is connected to the folding ladder in a rotating mode, and an adjusting mechanism for adjusting the supporting rod is arranged on the lower underframe. According to the utility model, the lengths of the folding upright posts in the main locking frame are changed, so that the folding upright posts push the upper underframe to move upwards and are matched with the supporting rods to push the folding ladder, the effect of adjusting the angle of the folding ladder is achieved, and the adaptability of the rotating shaft is improved.

Description

Foldable safety ladder cage

Technical Field

The utility model relates to the technical field of folding safety ladder cages, in particular to a folding safety ladder cage.

Background

At present, the safety ladder cage structure produced by domestic large-scale engineering machinery manufacturers is socket joint type, each upright post is independently arranged on four corners of an upper chassis and a lower chassis, two bolts are respectively arranged on the upper chassis and the lower chassis and are fastened with the chassis, the height of each upright post is 2 meters, an installer stands on each corner during installation, a crane lifts each upright post to be aligned with a chassis sleeve by workers and is installed in the chassis sleeve, then the lifting crane is locked by bolts, the movable space of the crane during installation is limited, two feet can only stand on the chassis square tubes with the width of 8cm, the lifting crane cannot be moved at will, the labor and the time of workers are wasted, and the time for installing the ladder cage with the height of 50 meters is more than 10 hours. And as the height of the ladder cage is increased, the distance between workers and the ground is increased, and the safety coefficient is also lower. Therefore, the problems of safety and timeliness of the installation of the ladder cage need to be solved.

Such as publication (bulletin) number: the field of folding type safety ladder cages is proposed in CN215671307U, and particularly relates to a modularized folding type safety ladder cage for engineering. The folding ladder comprises an upper folding ladder and a lower folding ladder, the upper folding ladder and the lower folding ladder are hinged together through a hinge, the lower end of the lower folding ladder is hinged to one side of the lower chassis, the upper end of the upper folding ladder is detachably connected to an upper end frame, and the lower side of the folding ladder is provided with a supporting rod. The utility model provides a modularized foldable safety ladder cage for engineering, which aims at the defects of the prior art that the installation speed is high and the safety of the installation process is high, but the angle of a folding ladder cannot be adjusted, and the angle of the folding ladder cannot be adjusted according to the actual use requirement, so that the adaptability of a device is reduced, and meanwhile, the linkage of the device is reduced.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a foldable safety ladder cage which aims at improving the adaptability of a rotating shaft by enabling the lengths of a plurality of folding upright posts in a main locking frame to change so that the folding upright posts push an upper underframe to move upwards and are matched with a supporting rod to push a folding ladder to achieve the effect of adjusting the angle of the folding ladder.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a collapsible safety ladder cage, includes the chassis down, chassis upper end is equipped with the main locking frame that a plurality of symmetries set up down, and is a plurality of all run through sliding connection on the main locking frame has folding stand, front and back two be equipped with the protection network between the folding stand, a plurality of folding stand lateral wall all is equipped with the connecting rod seat, and is a plurality of be equipped with the chassis jointly between the connecting rod seat, upward be equipped with the folding ladder between chassis and the chassis down, be equipped with the expansion ring on the folding ladder, rotate on the folding ladder and be connected with the bracing piece, be equipped with the adjustment mechanism who is used for adjusting the bracing piece down on the chassis, a plurality of all be equipped with in the main locking frame and be used for carrying out elevating system that goes up and down to the folding stand.

Preferably, the adjusting mechanism comprises a moving groove arranged on the lower underframe, a transverse screw rod is connected to the moving groove in a penetrating and rotating mode, a moving block is connected to the outer wall of the transverse screw rod in a threaded mode, the moving block is connected with the moving groove in a sliding mode, and the lower end of the supporting rod is connected with the moving block in a rotating mode.

Preferably, the lifting mechanism comprises a sliding plate arranged at the lower end of the folding upright post, the sliding plate is in sliding connection with the inner wall of the main locking frame, an internal thread groove is formed in the sliding plate and the lower end of the folding upright post, and a longitudinal screw rod is connected in the internal thread groove in a penetrating threaded manner.

Preferably, a plurality of chambers are formed in the lower underframe, the transverse screw penetrates through the two chambers on the same side and the right side wall of the lower underframe, the lower ends of the longitudinal screws penetrate through the main locking frame and extend into the chambers, bevel gears are arranged on the tail ends of the lower ends of the longitudinal screws and the outer walls of the transverse screws, which are located in the two chambers, and the bevel gears are meshed with each other.

Preferably, a middle upright post is arranged between the upper underframe and the lower underframe, and an auxiliary locking frame is arranged on the outer wall of the middle upright post.

Preferably, the outer walls of the two transverse screws are respectively provided with a belt wheel, and the two belt wheels are connected through belt transmission.

The utility model has the beneficial effects that:

1. the lengths of the folding upright posts in the main locking frame are changed, so that the folding upright posts push the upper underframe to move upwards, and the folding upright posts are matched with the supporting rods to push the folding ladder, so that the effect of adjusting the angle of the folding ladder is achieved, and the adaptability of the rotating shaft is improved.

2. Through setting up under the meshing effect of bevel gear between vertical screw rod and the horizontal screw rod to and threaded connection between internal thread groove and the vertical screw rod, when making one of them horizontal screw rod rotate, can accomplish the linkage of whole device, improve the linkage nature of device.

Drawings

FIG. 1 is a schematic front view of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present utility model;

fig. 3 is an enlarged schematic view of the structure at B in fig. 1 according to the present utility model.

In the figure: the device comprises a lower underframe, a main locking frame 2, a folding upright post 3, a connecting rod seat 4, an upper underframe 5, a middle upright post 6, a folding ladder 7, an auxiliary locking frame 8, a supporting rod 9, a telescopic ring 10, a protective net 11, a transverse screw rod 12, a chamber 13, a belt wheel 14, a moving block 15, a bevel gear 16, a sliding plate 17, an internal thread groove 18 and a longitudinal screw rod 19.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-3, a foldable safety ladder cage comprises a lower chassis 1, the upper end of the lower chassis 1 is provided with a plurality of symmetrically arranged main locking frames 2, a plurality of main locking frames 2 are all connected with folding upright posts 3 in a penetrating and sliding manner, a protective net 11 is arranged between the front folding upright posts 3 and the rear folding upright posts 3, the side walls of the folding upright posts 3 are all provided with connecting rod seats 4, an upper chassis 5 is jointly arranged between the upper chassis 5 and the lower chassis 1, a folding ladder 7 is arranged on the folding ladder 7, a supporting rod 9 is rotatably connected on the folding ladder 7, an adjusting mechanism for adjusting the supporting rod 9 is arranged on the lower chassis 1, the adjusting mechanism comprises a moving groove formed in the lower chassis 1, a transverse screw 12 is connected on the moving groove in a penetrating and rotating manner, the outer wall of the transverse screw 12 is in threaded connection with a moving block 15, the moving block 15 is connected with the moving groove in a sliding manner, and the lower end of the supporting rod 9 is rotatably connected with the moving block 15.

Lifting mechanisms for lifting the folding upright posts 3 are arranged in the plurality of main locking frames 2, the lifting mechanisms comprise sliding plates 17 arranged at the lower ends of the folding upright posts 3, the sliding plates 17 are slidably connected with the inner walls of the main locking frames 2, internal thread grooves 18 are formed in the lower ends of the sliding plates 17 and the folding upright posts 3, longitudinal screw rods 19 penetrate through the internal thread grooves 18 and are connected with the internal thread grooves in a threaded manner, the lengths of the plurality of folding upright posts 3 in the main locking frames 2 are changed, so that the plurality of folding upright posts 3 push the upper bottom frame 5 to move upwards and are matched with the supporting rods 9 to push the folding ladders 7, the angle of the folding ladders 7 is adjusted, and the adaptability of the rotating shaft is improved.

A plurality of chambers 13 are formed in the lower underframe 1, the transverse screw rods 12 penetrate through the two chambers 13 on the same side and the side wall on the right side of the lower underframe 1, the lower ends of the two longitudinal screw rods 19 penetrate through the main locking frame 2 and extend into the chambers 13, bevel gears 16 are arranged on the outer walls of the lower ends of the longitudinal screw rods 19 and the outer walls of the transverse screw rods 12, which are located in the two chambers 13, and the bevel gears 16 are meshed with each other.

A middle upright post 6 is arranged between the upper underframe 5 and the lower underframe 1, and an auxiliary locking frame 8 is arranged on the outer wall of the middle upright post 6.

The outer walls of the two transverse screws 12 are respectively provided with a belt wheel 14, the two belt wheels 14 are connected through belt transmission, and under the meshing action of the bevel gears 16 between the longitudinal screws 19 and the transverse screws 12 and the threaded connection between the internal thread grooves 18 and the longitudinal screws 19, when one transverse screw 12 rotates, the linkage of the whole device can be completed, and the linkage of the device is improved.

When the folding ladder cage is used, the whole ladder cage is installed by utilizing the prior art, one transverse screw rod 12 is rotated by utilizing the prior art, two transverse screw rods 12 are rotated by utilizing the transmission connection of the belt wheel 14 and the belt between the two transverse screw rods 12, the sliding connection of the moving block 15 and the moving groove is utilized, the threaded connection of the moving block 15 and the transverse screw rods 12 is utilized, the moving block 15 is moved, the moving block 15 is in rotary connection with the supporting rod 9, the supporting rod 9 is in rotary connection with the folding ladder 7, the supporting rod 9 pushes the folding ladder 7 to move, meanwhile, the rotating shaft 7 is pushed to move by pushing the supporting rod 9, and simultaneously, the rotating shafts 7 are matched with the folding ladder by pushing the upper supporting rods 5 due to the rotation of the two transverse screw rods 12 and the meshing effect of the bevel gears 16 between the transverse screw rods 12 and the longitudinal screw rods 19, the longitudinal screw rods 19 are rotated by utilizing the threaded connection of the longitudinal screw rods 19 and the internal thread grooves 18, and the sliding connection of the sliding plates 17 and the inner walls of the main locking frame 2 are utilized, the lengths of the longitudinal screw rods 19 positioned in the internal thread grooves 18 are changed, and the lengths of the vertical columns 3 positioned in the main locking frame 2 are changed, and the vertical columns 3 are pushed to move, so that the vertical columns 3 are pushed to move upwards, and the folding ladder 7 is matched with the folding ladder 7, and the folding angle is adjusted.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a collapsible safety ladder cage, includes chassis (1), its characterized in that, chassis (1) upper end is equipped with main locking frame (2) that a plurality of symmetries set up down, and is a plurality of all run through sliding connection has folding stand (3) on main locking frame (2), two around be equipped with protection network (11) between folding stand (3), a plurality of folding stand (3) lateral wall all is equipped with connecting rod seat (4), a plurality of be equipped with chassis (5) jointly between connecting rod seat (4), be equipped with folding ladder (7) between chassis (5) and lower chassis (1), be equipped with expansion ring (10) on folding ladder (7), it is connected with bracing piece (9) to rotate on folding ladder (7), be equipped with on lower chassis (1) and be used for carrying out the adjustment mechanism who adjusts bracing piece (9), a plurality of all be equipped with in main locking frame (2) and be used for carrying out elevating system that goes up and down folding stand (3).

2. The foldable safety ladder cage according to claim 1, characterized in that the adjusting mechanism comprises a moving groove arranged on the lower underframe (1), a transverse screw rod (12) is connected to the moving groove in a penetrating and rotating mode, a moving block (15) is connected to the outer wall of the transverse screw rod (12) in a threaded mode, the moving block (15) is connected with the moving groove in a sliding mode, and the lower end of the supporting rod (9) is connected with the moving block (15) in a rotating mode.

3. The foldable safety ladder cage according to claim 2, characterized in that the lifting mechanism comprises a sliding plate (17) arranged at the lower end of the folding upright post (3), the sliding plate (17) is slidably connected with the inner wall of the main locking frame (2), an inner thread groove (18) is formed in the lower ends of the sliding plate (17) and the folding upright post (3), and a longitudinal screw (19) is connected in the inner thread groove (18) in a penetrating threaded manner.

4. A foldable safety ladder cage according to claim 3, characterized in that a plurality of chambers (13) are formed in the lower chassis (1), the transverse screw (12) penetrates through the two chambers (13) on the same side and the right side wall of the lower chassis (1), the lower ends of the two longitudinal screws (19) penetrate through the main locking frame (2) and extend into the chambers (13), bevel gears (16) are arranged on the outer walls of the lower ends of the longitudinal screws (19) and the outer walls of the transverse screw (12) located in the two chambers (13), and the bevel gears (16) are meshed.

5. The foldable safety ladder cage according to claim 4, characterized in that a central column (6) is arranged between the upper underframe (5) and the lower underframe (1), and a secondary locking frame (8) is arranged on the outer wall of the central column (6).

6. A collapsible ladder basket according to claim 5, wherein the outer walls of both said transverse screws (12) are provided with pulleys (14), the two pulleys (14) being connected by a belt drive.