阅读说明：本技术 一种适于检修用的锁闭式安全型人行爬梯 (Locking type safety type pedestrian ladder suitable for overhauling ) 是由 王坚 吴金洋 李杏 吉明军 杨春生 汪佑雄 何锁岩 刘捷 陈辉 余世鹏 吴昊 于 2019-12-05 设计创作，主要内容包括：本发明涉及一种适于检修用的锁闭式安全型人行爬梯,包括由左右上部立柱、梯笼、若干上部踏步和带扶手的顶部左右护栏构成的上部爬梯,由左右下部立柱和若干下部踏步构成的下部爬梯,及包括由含盖板、盖板横杆、两端凸伸状限位轴和凸伸状左右旋转支轴构成的盖板构件,和由合页、挂锁孔座及挂扣件构成的锁定牵引机构的可锁式盖板组件。盖板构件上的限位轴安置在左右下部立柱上的限位安装孔内,旋转支轴安设在左右上部立柱上的限位安装孔,挂扣件设置在上下部踏步之间,实现上部爬梯和上部爬梯的牵引互连,并由锁定机构控制盖板处于水平阻挡人员进入的位置或处于垂直允许人员进入的位置,并在梯笼和带扶手的顶部左右护栏的护卫下安全通行。(The invention relates to a locking type safe pedestrian ladder suitable for maintenance, which comprises an upper ladder composed of left and right upper upright posts, a ladder cage, a plurality of upper steps and left and right guardrails at the top part with handrails, a lower ladder composed of left and right lower upright posts and a plurality of lower steps, a cover plate component composed of a cover plate, a cover plate cross rod, limit shafts with convex extending shapes at two ends and left and right rotating support shafts with convex extending shapes, and a locking type cover plate component of a locking traction mechanism composed of a hinge, a padlock hole seat and a fastener. The limit shaft on the cover plate component is arranged in the limit mounting holes on the left and right lower upright posts, the rotary fulcrum shaft is arranged in the limit mounting holes on the left and right upper upright posts, the hanging fastener is arranged between the upper step and the lower step to realize the traction interconnection of the upper ladder stand and the upper ladder stand, the cover plate is controlled by the locking mechanism to be in a position horizontally blocking personnel from entering or a position vertically allowing personnel to enter, and the cover plate safely passes under the guardrails of the ladder cage and the left and right guardrails on the top with handrails.)

1. The utility model provides a be suitable for safe type people's cat ladder of locking formula of overhauing usefulness which characterized in that main part includes upper portion cat ladder (1), lower part cat ladder (2) and lockable apron subassembly (3), wherein:

the upper ladder (1) comprises a left upper upright post (11), a right upper upright post (11), an upper ladder cage (12), a plurality of upper steps (13) and an L-shaped convex top left guardrail (14) with handrails (141) thereon;

the lower crawling ladder (2) comprises a left lower upright post (21), a right lower upright post (21) and a plurality of lower steps (22);

the lockable cover plate component (3) comprises a cover plate member (31) and a locking traction mechanism (32), wherein the cover plate member (31) consists of a cover plate (311), a plurality of cover plate cross rods (312) arranged on the cover plate (311), two end-protruding limiting shafts (313) arranged at the tail end of the cover plate (311) at intervals, and two end-protruding left-right rotating fulcrum shafts (314), and the locking traction mechanism (32) consists of a hinge (321), a padlock hole seat (322) and a hanging fastener (323);

the main body of the upper ladder cage (12) is in an arc cylindrical frame shape and comprises a plurality of arc-shaped transverse steel bars (121) and a plurality of longitudinal steel bars (122) which are longitudinally fixedly welded and interconnected with the arc-shaped transverse steel bars (121);

the main body of the left and right upper upright posts (11) is in a long rod shape, a plurality of upper steps (13) are fixedly arranged between the inner side surfaces of a left rod body and a right rod body, a plurality of circular arc-shaped transverse steel bars (121) of the upper ladder cage (12) are fixedly arranged between the outer side surfaces of the left rod body and the right rod body, a limiting mounting hole A (112) of the rotating fulcrum shaft (314) is correspondingly and oppositely arranged on the left rod body and the right rod body near the lower end part, a padlock hole seat (322) is fixedly arranged on the outer side surface, and an L-shaped outer convex top left guardrail (14) with a handrail (141) is fixedly arranged on the top;

the main body of the left and right lower upright posts (21) is in a long rod shape, a plurality of lower steps (22) are fixedly arranged between the inner side surfaces of the left and right rod bodies, limit mounting holes B (211) of the limit shafts (313) are correspondingly and oppositely arranged on the left and right rod bodies near the upper end part, and hinges (321) are fixedly arranged on the outer side surfaces;

the hanging fastener (323) is filled by a flexible steel wire rope, one end of the hanging fastener is fixedly or fixedly sleeved on the uppermost lower step (22) of the lower crawling ladder (2), and the other end of the hanging fastener is fixedly or fixedly sleeved on the upper step (13) which is close to the lower end of the upper crawling ladder (1) and is close to the uppermost lower step (22) in the locking state;

in an assembly state during working, the upper crawling ladder (1) and the upper crawling ladder (2) are arranged in the limit mounting holes B (211) on the left lower upright post and the right lower upright post (21) through the limit shafts (313) on the cover plate member (31), the rotating fulcrum shafts (314) are arranged in the limit mounting holes A (112) on the left upper upright post and the right upper upright post (11), and the hanging fasteners (323) arranged between the upper step (12) and the lower step (22) realize traction interconnection; in a non-working state, the hinge (321) and the padlock hole seat (322) are locked and limited mutually, the hanging fastener (323) is in a loose state, the cover plate (311) is in a horizontal position, and the state that people enter the padlock is blocked; under the working state, after the left and right lower side edges of the left and right guardrails (14) at the top L-shaped convex top of the upper ladder stand (1) are hung and held on the edges of the operation floors for supporting, and the hinge (321) and the padlock hole seat (322) are unlocked, the lower ladder stand (2) droops under the action of gravity to drive and pull down the cover plate member (31), so that the cover plate (311) rotates downwards for 90 degrees and is drawn close to the lower upright post (21), the hanging fastener (323) is in a tensioning state, and is wholly in a stable opening state under the traction limit of the hanging fastener (323), personnel are allowed to enter, and safely pass under the guard of the left and right guardrails (14) at the top L-shaped convex top with the handrail (141) on the top of the upper ladder cage (12); the cover plate (311) is pushed upwards in the non-working state without the requirement of a user, the lower crawling ladder can be driven to move upwards, the cover plate (31) tends to be closed, the pedestrian crawling ladder can be locked when the hinge (321) is aligned with the padlock hole seat (322), the phenomenon that irrelevant personnel climb at will can be effectively prevented, or the fact that internal components are complete and undamaged in the storage state is guaranteed, and safety management is facilitated.

Technical Field

The invention relates to the technical field of auxiliary facilities for capital construction, in particular to a locking type safe pedestrian ladder which is convenient, safe and reliable to use, convenient to lock and manage when not used and suitable for maintenance.

Background

In recent years, with the rapid development of the building industry, the building maintenance safety requirement is higher and higher, and the development of engineering regularization, standardization and tool is inevitable. Compared with a regular building construction site, the pedestrian ladder is not obvious, but is an indispensable facility for security inspection and maintenance on the construction site at ordinary times. The pedestrian ladder at the construction site is very simple, has no handrail or guardrail, is free from passing in an open space during use, has extremely poor safety, and is a great potential safety hazard on the construction site at present. How to make the pedestrian ladder stand become not only convenient for the pedestrian to pass safely, but also convenient for on-the-spot safety control, effectively serve to play due role in the construction of capital construction civilization and safety in production, therefore, the crawling ladder becomes one of the great problems that the industry faces and needs to be solved urgently at present. Therefore, a shaped, normalized and tooled crawling ladder which is convenient to process, simple to install, safe and reliable to use, suitable for emergency use in a capital construction site and capable of ensuring safe up-and-down passing of operators is needed to be researched and developed.

Disclosure of Invention

The invention aims to overcome the potential safety hazard of the existing simple type pedestrian ladder in the capital construction, and provides the locking type safe pedestrian ladder which has the advantages of simple, scientific and reasonable structure, convenience in use, safety and reliability in work, capability of ensuring the safe passage of constructors and suitability for site maintenance of a construction site.

The invention discloses a locking type safe pedestrian ladder suitable for overhauling, which is characterized in that a main body comprises an upper ladder stand, a lower ladder stand and a lockable cover plate component, wherein:

the upper ladder stand comprises a left upper upright post, a right upper upright post, an upper ladder cage, a plurality of upper steps and an L-shaped outer convex top left guardrail and an L-shaped outer convex top guardrail with handrails;

the lower crawling ladder comprises a left lower upright column, a right lower upright column and a plurality of lower steps;

the lockable cover plate component comprises a cover plate, a plurality of cover plate cross rods arranged on the cover plate, a cover plate component and a locking traction mechanism, wherein the cover plate component is composed of a limit shaft with two convex ends and a left-right rotating fulcrum shaft with two convex ends which are arranged at the tail end of the cover plate at intervals, and the locking traction mechanism is composed of a hinge, a padlock hole seat and a hanging fastener;

the upper ladder cage main body is in an arc cylindrical frame shape and comprises a plurality of arc-shaped transverse steel bars and a plurality of longitudinal steel bars which are longitudinally fixedly welded and interconnected with the arc-shaped transverse steel bars;

the left and right upper upright post bodies are in a long rod shape, the upper steps are fixedly arranged between the inner side surfaces of the left and right rod bodies, the arc-shaped transverse steel bars of the upper ladder cage are fixedly arranged between the outer side surfaces of the left and right rod bodies, the limiting mounting holes A of the rotating fulcrum shaft are correspondingly and oppositely arranged on the left and right rod bodies close to the lower end part, the padlock hole seats are fixedly arranged on the outer side surfaces, and the left and right guardrails with L-shaped outer convex tops and armrests are fixedly arranged on the top end parts of the padlock hole seats;

the left and right lower upright post bodies are in a long rod shape, the plurality of lower steps are fixedly arranged between the inner side surfaces of the left and right rod bodies, the limiting mounting holes B of the limiting shaft are correspondingly and oppositely arranged on the left and right rod bodies close to the upper end part, and the hinge is fixedly arranged on the outer side surface;

the hanging fastener is filled by a flexible steel wire rope, one end of the hanging fastener is fixedly or fixedly sleeved on the lower step at the uppermost end of the lower crawling ladder, and the other end of the hanging fastener is fixedly or fixedly sleeved on the upper step which is close to the lower end of the upper crawling ladder and is close to the lower step at the uppermost end in a locking state and is close to the lower step at the uppermost end;

in an assembly state during working, the upper crawling ladder and the upper crawling ladder are arranged in the limit mounting holes B on the left and right lower upright posts through the limit shafts on the cover plate members, the rotating fulcrum shafts are arranged in the limit mounting holes A on the left and right upper upright posts, and the hanging fasteners arranged between the upper step and the lower step realize traction interconnection; in a non-working state, the hinge and the padlock hole seat are locked and limited mutually, the hanging fastener is in a loose state, and the cover plate is in a horizontal position to block people from entering the padlock hole seat; under the working state, the left and right lower side edges of the left and right guardrails at the top of the upper ladder stand are hung and held on the edges of the operation floors for supporting, hinge and padlock hole seats to be unlocked, the lower ladder stand droops under the action of gravity to drive and pull down a cover plate member, so that the cover plate rotates downwards by 90 degrees and is drawn close to the lower upright post, the hanging fastener is in a tensioning state, and the whole body is in a stable opening state under the traction limit of the hanging fastener, so that personnel can enter the hanging ladder, and can safely pass under the guards of the left and right guardrails at the top of the upper ladder cage and the L-shaped outer convex top with handrails at the top; in addition, the cover plate is pushed upwards in a non-working state without the requirement of a user, the lower crawling ladder can be driven to move upwards, the cover plate tends to be closed, the pedestrian crawling ladder can be locked when the hinge is aligned with the padlock hole seat, the phenomenon that irrelevant personnel climb at will can be effectively prevented, or the fact that internal components are complete and lossless in a storage state is guaranteed, and safety management is facilitated.

The locking type safety pedestrian ladder suitable for overhauling is an integrated safety operation facility which is convenient to use on the construction site and is organically combined by the upper ladder with the safety facility and the simple lower ladder through the locking type cover plate component.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is an assembled schematic view of a lockable cover assembly in accordance with an embodiment of the invention;

fig. 3 is a schematic structural view of a cover member according to an embodiment of the present invention.

In the figure:

1. upper ladder 11, upper upright post 112, limit mounting hole A12 and upper ladder cage

121. Transverse reinforcing steel bars 122, longitudinal reinforcing steel bars 13, upper step 14, top left and right guardrails

141. Handrail 2, lower ladder 21, lower upright post 211 and limit mounting hole B

22. Lower step 3, lockable deck assembly 31, deck member 311, deck

312. Cover plate cross bar 313, limit shaft 314, left-right rotating fulcrum 32 and locking traction mechanism

321. Hinge 322, padlock hole seat 323, hanging fastener

Detailed Description

The invention will be further described with reference to the figures and the exemplary embodiments.

In figures 1, 2 and 3 the locking safety pedestrian ladder of the invention, suitable for service, is characterized in that the main body comprises an upper ladder 1, a lower ladder 2 and a lockable cover assembly 3, wherein:

the upper ladder stand 1 comprises a left upper upright post 11, a right upper upright post 11, an upper ladder cage 12, a plurality of upper steps 13 and an L-shaped convex top left guardrail 14 with handrails 141;

the lower crawling ladder 2 comprises a left lower upright column 21, a right lower upright column 21 and a plurality of lower steps 22;

the lockable cover plate component 3 comprises a cover plate member 31 consisting of a cover plate 311, a plurality of cover plate cross bars 312 arranged on the cover plate 311, a limiting shaft 313 with two convex ends and a left-right rotating fulcrum 314 with two convex ends, which are arranged at the tail end of the cover plate 311 at intervals, and a locking traction mechanism 32 consisting of a hinge 321, a padlock hole seat 322 and a fastener 323;

the upper ladder cage 12 is in the shape of an arc cylindrical frame and comprises a plurality of arc-shaped transverse steel bars 121 and a plurality of longitudinal steel bars 122 which are longitudinally fixedly welded and interconnected with the arc-shaped transverse steel bars 121;

the left and right upper upright posts 11 are long rod-shaped, the upper steps 13 are fixedly arranged between the inner side surfaces of the left and right rod bodies, the arc-shaped transverse steel bars 121 of the upper ladder cage 12 are fixedly arranged between the outer side surfaces of the left and right rod bodies, the limiting mounting holes A112 of the rotating fulcrum shaft 314 are correspondingly and oppositely arranged on the left and right rod bodies near the lower end part, and the L-shaped outer convex top left and right guardrails 14 with handrails 141 are fixedly arranged on the top end parts of the padlock hole seats 322 which are fixedly arranged on the outer side surfaces;

the left and right lower upright posts 21 are long rod-shaped, the lower steps 22 are fixedly arranged between the inner side surfaces of the left and right rod bodies, the limiting mounting holes B211 of the limiting shaft 313 are correspondingly and oppositely arranged on the left and right rod bodies near the upper end part, and the hinges 321 are fixedly arranged on the outer side surfaces;

the hanging fastener 323 is served by a flexible steel wire rope, one end of the hanging fastener is fixedly or fixedly sleeved on the uppermost lower step 22 of the lower crawling ladder 2, and the other end of the hanging fastener is fixedly or fixedly sleeved on the upper step 13 which is close to the lower end of the upper crawling ladder 1 and is close to the uppermost lower step 22 in a locking state;

in an assembly state during operation, the upper ladder stand 1 and the upper ladder stand 2 are arranged in the limit mounting holes B211 on the left lower upright post 21 and the right lower upright post 21 through the limit shaft 313 on the cover plate member 31, the rotating fulcrum shaft 314 is arranged in the limit mounting holes A112 on the left upper upright post 11 and the right upper upright post 11, and the hanging fastener 323 arranged between the upper step 12 and the lower step 22 realizes traction interconnection; in a non-working state, the hinge 321 and the padlock hole seat 322 are locked and limited mutually, the hanging fastener 323 is in a loose state, the cover plate 311 is in a horizontal position, and the state that people enter the padlock is blocked; under the working condition, the upper ladder stand 1 is hung and held on the edge of a working floor by the left and right lower side edges of the left and right guardrails 14 at the top of the L-shaped outer convex top part of the upper ladder stand 1 for supporting, after the hinge 321 and the padlock hole seat 322 are unlocked, the lower ladder stand 2 droops under the action of gravity to drive and pull down the cover plate member 31, so that the cover plate 311 rotates downwards for 90 degrees, the lower upright post 21 is closed, the hanging fastener 323 is in a tensioning state, and the whole is in a stable opening state under the traction limit of the hanging fastener 323, so that personnel can enter the upper ladder stand 12 and the guard of the left and right guardrails 14 at the top of the L-shaped outer convex top part with the handrail 141 at.

In addition, the cover plate 311 is pushed upwards in the non-working state without the requirement of the upper part, so that the lower crawling ladder can be driven to move upwards, the cover plate 31 tends to be closed, the pedestrian crawling ladder can be locked when the hinges 321 are aligned with the padlock hole seats 322, the phenomenon that irrelevant personnel climb at will or the internal components are complete and lossless in the storage state can be effectively prevented, and safety management is facilitated.