CN219711433U

CN219711433U - Assembled cat ladder

Info

Publication number: CN219711433U
Application number: CN202320711817.4U
Authority: CN
Inventors: 刘科峰; 李林; 谢馨; 杨光武; 邹敏勇; 单秋伟
Original assignee: China Railway Major Bridge Reconnaissance and Design Institute Co Ltd
Current assignee: China Railway Major Bridge Reconnaissance and Design Institute Co Ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-09-19
Anticipated expiration: 2033-04-03

Abstract

The utility model provides an assembled ladder stand, which aims at the problems that the existing bridge overhauling process adopts the mode of field measurement, blanking and welding to connect a walking ladder stand with a fixed platform, and is long in time consumption, high in cost and not environment-friendly, and is characterized by comprising the following steps: multisection cat ladder body, multisection the cat ladder body links to each other end to end in proper order, and the top the lower extreme of cat ladder body and the upper end of the cat ladder body of its adjacent below pass through the connecting piece and are connected with the simple supporting beam of maintenance platform, wherein, the connecting piece includes fixed swivel mount and inclined ladder adjustable support, fixed swivel mount with simple supporting beam fixed connection, inclined ladder adjustable support with the cat ladder body connection that corresponds, fixed swivel mount with inclined ladder adjustable support articulates, and the articulated axis is on a parallel with simple supporting beam to adjust adjacent two contained angle between the cat ladder body. The ladder stand is simple in structure and convenient to use, and can play a role in enhancing the efficiency.

Description

Assembled cat ladder

Technical Field

The utility model relates to the field of bridge overhaul, in particular to an assembled crawling ladder.

Background

At present, in the field of bridge overhaul, the connection of a walking cat ladder of an overhaul channel and a fixed platform is usually completed by adopting a field measurement, blanking and welding mode, wherein the cat ladder is welded with an existing embedded part on the field, and the mode has a plurality of inconveniences, and may cause permanent damage to the embedded part on the field; secondly, the cutting and welding are carried out on site, which is not beneficial to green and environment-friendly processing; moreover, the welding part is subjected to corrosion prevention treatment on site, and the standard of factory treatment cannot be met; most importantly, the field cutting welding technology has higher cost, can seriously influence the construction progress aiming at a relatively complex field environment, consumes a great amount of time, also causes unnecessary waste on consumable materials, and seriously increases the maintenance cost and difficulty.

Disclosure of Invention

The utility model provides an assembled ladder stand aiming at the defects of the walking ladder stand of the current overhaul channel, which is characterized by comprising the following steps: multisection cat ladder body, multisection the cat ladder body links to each other end to end in proper order, and the top the lower extreme of cat ladder body and the upper end of the cat ladder body of its adjacent below pass through the connecting piece and are connected with the simple supporting beam of maintenance platform, wherein, the connecting piece includes fixed swivel mount and inclined ladder adjustable support, fixed swivel mount with simple supporting beam fixed connection, inclined ladder adjustable support with the cat ladder body connection that corresponds, fixed swivel mount with inclined ladder adjustable support articulates, and the articulated axis is on a parallel with simple supporting beam to adjust adjacent two contained angle between the cat ladder body.

Further, the fixed rotary support is sleeved on the simply supported beam.

Further, the fixed rotary support comprises a U-shaped sleeving part and a fixing plate, the simple supporting beam is installed in a groove of the U-shaped sleeving part, and the fixing plate seals the groove and compresses the simple supporting beam.

Further, bolt holes are formed in two side faces of the U-shaped sleeving part, bolt holes are formed in corresponding positions of the fixing plate, and the fixing plate fixes the U-shaped sleeving part to the simply supported beam through bolts.

Further, the fixed rotary support further comprises a first lug plate, the inclined ladder adjustable support comprises a second lug plate, the first lug plate and the second lug plate are both provided with shaft holes, and the positioning shaft penetrates through the first lug plate and the corresponding shaft holes of the second lug plate.

Further, the top of the U-shaped sleeving part is provided with a mounting plate, the top surface of the mounting plate is provided with a connecting plate, the mounting plate is connected with the connecting plate through bolts, and the first lug plate is arranged on the top surface of the connecting plate.

Further, the ramp adjustable support includes two oppositely disposed second ear plates, the first ear plate being interposed between the two second ear plates.

Further, one end of the positioning shaft is provided with a limiting step, and the other end of the positioning shaft is provided with a positioning pin.

Further, the inclined ladder adjustable support comprises an upper clamping block and a lower clamping block, and the upper clamping block is fixedly connected with the lower clamping block so as to clamp the end part of the longitudinal beam of the ladder body.

Further, the front end of the lower clamping block is provided with an extension plate, and the second lug plate is arranged at the front end of the extension plate.

According to the utility model, an assembly type mounting structure is adopted, after the upper and lower connecting pieces of the ladder stand are connected with the steel structure of the platform, the on-site complex platform can be matched with the on-site complex platform in a rotation and translation mode, after all the connecting pieces are clamped, the ladder stand cannot move, shift and the like, and can be kept in an original state all the time, so that the ladder stand can be used in various environments. The utility model has simple structure and strong practicability, can not pollute the surrounding environment in the using process, and greatly improves the maintenance efficiency and reduces the maintenance cost and difficulty due to simple using mode.

Drawings

The features and advantages of the present utility model will be more clearly understood by reference to the accompanying drawings, which are illustrative and should not be construed as limiting the utility model in any way, in which:

FIG. 1 is a partial schematic view of an assembled ladder of the present utility model;

FIG. 2 is a front view of an assembled ladder stand of the present utility model;

FIG. 3 is a side view of the assembled ladder of the present utility model;

fig. 4 is a schematic structural view of a connecting piece of an assembled ladder stand according to the present utility model.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

The utility model provides an assembled cat ladder, which is mainly used in a bridge overhaul scene and specifically comprises the following steps: multisection cat ladder body 10, multisection cat ladder body 10 connects gradually end to end, the top the lower extreme of cat ladder body 10 and rather than the upper end of adjacent below cat ladder body 10 pass through the connecting piece and are connected with the simple beam 3 of maintenance platform 8, wherein, the connecting piece includes fixed swivel mount 1 and inclined ladder adjustable support 2, fixed swivel mount 1 with simple beam 3 fixed connection, inclined ladder adjustable support 2 with the correspondence cat ladder body 10 is connected, fixed swivel mount 1 with inclined ladder adjustable support 2 articulates, and the articulated axis is on a parallel with simple beam 3 to adjust two adjacent contained angles between the cat ladder body 10. The angle between each two adjacent ladder bodies 10 can be adjusted at will according to the field requirement in the use process, and the adjusted angle is fixed by the fastener to prevent displacement.

The fixed rotary support 1 is sleeved on the simply supported beam 3. Further, the adjacent ladder bodies 10 are sleeved on the same simple supporting beams 3, and a plurality of simple supporting beams 3 can be adopted to connect a plurality of ladder bodies 10 according to requirements.

Further, the fixed rotary support 1 comprises a rectangular sleeving part 101 and a fixing plate 102, the simple beam 3 is installed in a groove of the rectangular sleeving part 101, and the fixing plate 102 covers the groove and presses the simple beam 3 tightly.

Further, bolt holes are formed in both side surfaces of the rectangular sleeve 101, bolt holes are formed in corresponding positions of the fixing plate 102, and the fixing plate 102 fixes the rectangular sleeve 101 to the simply supported beam 3 by bolts.

Further, the fixed rotary support 1 further comprises a first ear plate 103, the inclined ladder adjustable support 2 comprises a second ear plate 201, the first ear plate 103 and the second ear plate 201 are respectively provided with a shaft hole, and the positioning shaft 7 passes through the shaft holes of the first ear plate 103 and the corresponding second ear plate 201. The first ear plate 103 and the second ear plate 201 may set an included angle according to needs, and after being set, the positions are fixed.

Further, the top of the sleeve-shaped portion 101 is provided with a mounting plate 5, a connecting plate 6 is mounted on the top surface of the mounting plate 5, the mounting plate 5 is connected with the connecting plate 6 through bolts, and the first lug plate 103 is arranged on the top surface of the connecting plate 6.

Further, the ramp adjustable support 2 comprises two oppositely arranged second lugs 201, and the first lug 103 is inserted between the two second lugs 201.

Further, one end of the positioning shaft 7 is provided with a limiting step, and the other end of the positioning shaft is provided with a positioning pin.

Further, the inclined ladder adjustable support 2 includes an upper clamping block 202 and a lower clamping block 203, and the upper clamping block 202 and the lower clamping block 203 are fixedly connected to clamp the end portion of the longitudinal beam of the ladder body 10.

Further, an extension plate 204 is disposed at the front end of the lower clamping block 203, and the second ear plate 201 is disposed at the front end of the extension plate 204.

According to the utility model, the fixed rotary support 1 is connected with the simple supporting beams 3 of the platform, the adjustable supporting seats 2 of the inclined ladder are connected at the upper end and the lower end of the ladder body 10, and as the simple supporting beams 3 of the platform are influenced by concrete embedded parts, the heights and angles of the simple supporting beams 3 of each layer of platform are different, the fixed rotary support 1 of the platform drives the ladder body through the positioning shaft 7 to adaptively adjust the angles, so that the ladder is not influenced by the changes of the angles and the height errors of the platform during installation, the installation is very easy, the upper clamping blocks 202 and the lower clamping blocks 203 of the ladder body are fastened after the angles and the heights are adjusted, and finally the hand guard 4 is adjusted to be in place according to the required heights, so that the installation of the ladder is completed, and the maintenance work can be carried out. The utility model has simple structure and convenient use, and can play the role of enhancing the effect.

In the present utility model, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A fabricated ladder stand, comprising: multisection cat ladder body, multisection the cat ladder body links to each other end to end in proper order, and the top the lower extreme of cat ladder body and the upper end of the cat ladder body of its adjacent below pass through the connecting piece and are connected with the simple supporting beam of maintenance platform, wherein, the connecting piece includes fixed swivel mount and inclined ladder adjustable support, fixed swivel mount with simple supporting beam fixed connection, inclined ladder adjustable support with the cat ladder body connection that corresponds, fixed swivel mount with inclined ladder adjustable support articulates, and the articulated axis is on a parallel with simple supporting beam to adjust adjacent two contained angle between the cat ladder body.

2. The assembled ladder of claim 1, wherein the stationary swivel mount is nested within the simply supported beam.

3. The assembled ladder stand of claim 2, wherein the fixed swivel mount comprises a tee shaped sleeve and a fixed plate, the simply supported beam is mounted in a groove of the tee shaped sleeve, and the fixed plate covers the groove and compresses the simply supported beam.

4. The assembled ladder stand of claim 3, wherein the two sides of the tee-shaped sleeved part are provided with bolt holes, the fixing plate is provided with bolt holes at corresponding positions, and the fixing plate fixes the tee-shaped sleeved part to the simply supported beam through bolts.

5. The modular ladder of claim 3 or 4, wherein the fixed swivel mount further comprises a first ear plate and the ramp adjustable mount comprises a second ear plate, the first ear plate and the second ear plate each being provided with an axle aperture, and a positioning axle passing through the axle apertures of the first ear plate and the corresponding second ear plate.

6. The assembled cat ladder of claim 5, wherein the top of the tee shaped sleeve is provided with a mounting plate, the top surface of the mounting plate is provided with a connecting plate, the mounting plate is connected with the connecting plate through bolts, and the first lug plate is arranged on the top surface of the connecting plate.

7. The modular ladder of claim 5, wherein the ramp adjustable mount includes two oppositely disposed second ear panels, the first ear panel interposed between the two second ear panels.

8. The assembled ladder of claim 5, wherein one end of the positioning shaft is provided with a limiting step, and the other end of the positioning shaft is provided with a positioning pin.

9. The modular ladder of claim 5, wherein the ramp adjustable mount comprises an upper clamp block and a lower clamp block fixedly connected to clamp an end of a longitudinal beam of the ladder body.

10. The assembled ladder of claim 9, wherein the lower clamp block front end is provided with an extension plate and the second ear plate is disposed at the front end of the extension plate.