Adjustable assembly type tower crane foundation construction ladder

By designing an adjustable prefabricated tower crane foundation construction ladder, the problem of the ladder's length and angle being non-adjustable was solved, enabling the construction ladder to be flexible and reusable, thus improving construction efficiency and safety.

CN223805894UActive Publication Date: 2026-01-16SHANGHAI CONSTRUCTION NO 7 (GROUP) CO LTD
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Patent Information

Application Number
CN202423205408.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-01-16
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing tower crane construction ladders cannot adjust the length and angle of the ladder, making them difficult to reuse and unable to adapt to the needs of different construction environments.

Method used

An adjustable prefabricated tower crane foundation construction ladder was designed, including an adjustable prefabricated frame, a telescopic ladder body, and omnidirectional fixed wheels. The ladder body angle and length can be adjusted by bolt connection, and it is equipped with non-fixed outriggers to adapt to changes in the tower crane foundation.

Benefits of technology

It enables flexible adjustment of the construction ladder, expands its application range, facilitates reuse, and improves construction efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an adjustable assembly type tower crane foundation construction ladder which is structurally designed to comprise an assembly type frame body and a telescopic ladder body, and universal fixed wheels and the telescopic ladder body are combined for use, so that the adjustable assembly type tower crane foundation construction ladder is convenient to use and high in practicability. The angle and the length of the ladder body of the construction ladder can be adjusted according to actual conditions, the construction ladder can be used in a turnover mode, all the components in the assembly type frame body are designed to be adjustable anchoring, on-site assembly can be easily carried out, the distance is adjustable, repeated utilization is convenient, and the application range of the same tower crane foundation construction ladder is widened.
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Description

TECHNICAL FIELD

[0001] The utility model relates to construction technology field especially relates to an adjustable assembly type tower crane foundation construction ladder. BACKGROUND

[0002] In the construction process of deep foundation pit engineering, the layout position of the tower crane is often affected by multiple factors, and the distance between the tower crane foundation platform and the support beam trestle may be too large, and the tower crane foundation platform cannot be reached without the help of the construction ladder. In view of this situation, the general treatment method is to measure the site after the ladder position is set, and the manufacturer customizes the required construction ladder according to the measured data, and finally the construction ladder is transported to the site for welding and assembly. Because the construction ladder in this method is customized, the length and angle of the ladder body are fixed and cannot be changed, so after use, if there is a demand for reuse in other places, the old ladder needs to be reprocessed and modified before it can be reused. If the length of the ladder body is not enough or the angle is too large, reprocessing and modification cannot meet the demand, and the old ladder can only be disassembled and processed, and cannot be reused.

[0003] In view of the problem that the tower crane construction ladder in the prior art can only be prefabricated and cannot adjust the length and angle of the ladder body, it is difficult to put into circulation, the technical personnel in the field have been looking for a solution. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an adjustable assembly type tower crane foundation construction ladder to solve the problem that the tower crane construction ladder in the prior art can only be prefabricated and cannot adjust the length and angle of the ladder body, and it is difficult to put into circulation.

[0005] In order to solve the above technical problem, the utility model provides an adjustable assembly type tower crane foundation construction ladder, which comprises:

[0006] The assembly type frame body comprises two mutually parallel support units, two vertical fixed square steels arranged between the two support units and a fixed round steel; wherein each support unit comprises a T-shaped support, a movable support, a Y-shaped support and an inclined support, the top end of the Y-shaped support is lifted and perpendicular to one side of a right angle of the T-shaped support, the movable support is perpendicular to the other side of the right angle of the T-shaped support and crosses the Y-shaped support, and the two can be adjusted and anchored along the vertical side; the inclined support is arranged between the two sides of the other right angle of the T-shaped support;

[0007] Two telescopic ladder bodies, each telescopic ladder body comprises a main ladder square steel and a vice ladder square steel, the vice ladder square steel is sleeved in the main ladder square steel and can be telescoped relative to the main ladder square steel;

[0008] Two pairs of universal fixed wheels, a fixed round steel is arranged between the two pairs of universal fixed wheels, and the two universal fixed wheels in each pair of universal fixed wheels are oppositely arranged to jointly hold the end of a T-shaped support of the main ladder square steel and the assembly type frame body anchored between the two universal fixed wheels.

[0009] Optionally, in the adjustable assembly type tower crane foundation construction ladder, two universal fixed wheels cooperate with two bolts to hold the end of a T-shaped support of the main ladder square steel and the assembly type frame body anchored between the two universal fixed wheels, so that the T-shaped support and the main ladder square steel rotate around the respective bolts.

[0010] Optionally, in the adjustable assembly type tower crane foundation construction ladder, each universal fixed wheel comprises a disc body and a bolt hole formed along the circumference of the disc body.

[0011] Optionally, in the adjustable assembly type tower crane foundation construction ladder, a group of bolt holes are formed on the bodies of the two sides of a right angle formed by the T-shaped support to support the anchoring of the movable support and the Y-shaped support after position adjustment along the respective vertical sides.

[0012] Optionally, in the adjustable assembly type tower crane foundation construction ladder, a group of bolt holes are formed on the middle sections of the bodies of the movable support and the Y-shaped support to support the anchoring of the movable support and the Y-shaped support after vertical intersection.

[0013] Optionally, in the adjustable assembly type tower crane foundation construction ladder, it further comprises two non-fixed legs, one end of each non-fixed leg is anchored to a vice-ladder square steel of a telescopic ladder body through a bolt, and the other end is placed on the tower crane foundation.

[0014] Optionally, in the adjustable assembly type tower crane foundation construction ladder, each non-fixed leg comprises a leg, a steel pad and an anti-skid pad, one end of the leg is anchored to a vice-ladder square steel of a telescopic ladder body through a bolt, and the other end is welded to the steel pad, and the anti-skid pad is arranged between the steel pad and the tower crane foundation.

[0015] Optionally, in the adjustable assembly type tower crane foundation construction ladder, the anti-skid pad is a rubber anti-skid pad.

[0016] Optionally, in the adjustable assembly type tower crane foundation construction ladder, it further comprises two patterned steel plates, which are respectively extended and laid on the two T-shaped supports and the two telescopic ladder bodies and are welded and fixed thereto.

[0017] Optionally, in the adjustable assembly type tower crane foundation construction ladder, it further comprises two guardrails, which are respectively extended and arranged above a T-shaped support and a telescopic ladder body, and the bottoms thereof are welded and fixed to the two.

[0018] The adjustable assembly type tower crane foundation construction ladder has at least the following beneficial effects:

[0019] 1) The combination use of the universal fixed wheel and the telescopic ladder body makes the ladder body angle and length of the construction ladder adjustable, can be used in rotation, and expands the application range of the same tower crane foundation construction ladder.

[0020] 2) The components in the assembly type frame body can be anchored and adjusted, can be easily assembled on site, the distance is adjustable, is convenient to reuse, and expands the application range of the same tower crane foundation construction ladder.

[0021] 3) The non-fixed connecting relationship between the non-fixed supporting leg and the tower crane foundation can adapt to slight torsion occurring in the use process of the tower crane, and prevents the steel ladder platform from being deformed due to excessive torsion.

[0022] 4) The construction ladder is simple in material selection, convenient in manufacturing and installation, firm in welding and bolt connection, durable, safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a side view of the adjustable assembly type tower crane foundation construction ladder in an embodiment of the utility model;

[0024] Figure 2 is a top view of the adjustable assembly type tower crane foundation construction ladder in an embodiment of the utility model;

[0025] Figure 3 is a perspective view of the adjustable assembly type tower crane foundation construction ladder in an embodiment of the utility model;

[0026] Figure 4 is a schematic view of the adjustable assembly type tower crane foundation construction ladder of the utility model when being installed on a supporting beam.

[0027] In the drawings:

[0028] 1-T type support; 2-movable support; 3-Y type support; 4-inclined support; 5-fixed square steel; 6-universal fixed wheel; 7-main ladder square steel; 8-secondary ladder square steel; 9-supporting leg; 10-steel base plate; 11-anti-skid pad; 12-ribbed steel plate; 13-guardrail; 14-fixed round steel. DETAILED DESCRIPTION

[0029] The adjustable assembly type tower crane foundation construction ladder provided by the utility model will be further described in detail in combination with the drawings and specific embodiments. The advantages and characteristics of the utility model will be clearer according to the following description and claims. It should be noted that the drawings are all very simplified and use non-precise proportions, and are only used to facilitate and clearly assist the purpose of describing the embodiments of the utility model.

[0030] The utility model will be described further in detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the utility model, so they only show the structure related to the utility model.

[0031] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0033] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] Please refer to Figure 1 , the adjustable assembly type tower crane foundation construction ladder comprises:

[0035] The assembled frame body comprises two mutually parallel support units, two vertical fixed square steels 5 arranged between the two support units, and a fixed round steel 14. Each support unit comprises a T-shaped support 1, a movable support 2, a Y-shaped support 3, and an inclined support 4. The top end of the Y-shaped support 3 is lifted and perpendicular to one side of a right angle of the T-shaped support 1. The movable support 2 is perpendicular to the other side of the right angle of the T-shaped support 1. The two supports can be adjusted and anchored along the respective vertical sides. The inclined support 4 is arranged between the other two sides of the right angle of the T-shaped support 1. Two telescopic ladders each comprise a main ladder square steel 7 and a vice ladder square steel 8. The vice ladder square steel 8 is sleeved in the main ladder square steel 7 and can be telescopically moved relative to the main ladder square steel 7. Two pairs of universal fixed wheels are arranged between the two telescopic ladders. The two universal fixed wheels in each pair are oppositely arranged to jointly hold and anchor the end of the main ladder square steel 7 and the T-shaped support 1 of the assembled frame body.

[0036] Preferably, the T-shaped support 1, the movable support 2, the Y-shaped support 3, and the inclined support 4 are all made of square steel. The connection between some square steels can be considered to be changed to sliding connection by adding guide rails.

[0037] As shown in Figure 2 , the two universal fixed wheels cooperate with two bolts to hold and anchor the end of the main ladder square steel 7 and the T-shaped support 1 of the assembled frame body between them, so that the T-shaped support 1 and the main ladder square steel 7 rotate around the respective bolts. Each universal fixed wheel comprises a disc body and a bolt hole formed along the circumference of the disc body.

[0038] Preferably, a group of bolt holes are formed on the bodies of the two sides of the right angle formed by the T-shaped support 1 to support the anchoring of the movable support 2 and the Y-shaped support 3 after position adjustment along the respective vertical sides. A group of bolt holes are formed on the middle sections of the bodies of the movable support 2 and the Y-shaped support 3 to support the anchoring of the movable support 2 and the Y-shaped support 3 after vertical intersection.

[0039] Further, the adjustable assembled tower crane foundation construction ladder further comprises two non-fixed legs. One end of each non-fixed leg is anchored to the vice ladder square steel 8 of a telescopic ladder body by a bolt, and the other end is placed on the tower crane foundation. Each non-fixed leg comprises a leg 9, a steel pad 10, and a non-slip pad 11. One end of the leg 9 is anchored to the vice ladder square steel 8 of a telescopic ladder body by a bolt, and the other end is welded to the steel pad 10. The non-slip pad 11 is arranged between the steel pad 10 and the tower crane foundation. Preferably, the non-slip pad 11 is a rubber non-slip pad.

[0040] Further, please refer to Figure 1 and Figure 3The adjustable assembled tower crane foundation construction ladder further comprises two patterned steel plates 12, which are respectively extended and laid on the two T-shaped supports 1 and the two telescopic ladder bodies and are welded and fixed with the two T-shaped supports 1 and the two telescopic ladder bodies, and the patterned steel plates 12 serve as construction ladder passage plates for personnel to pass through.

[0041] Further, referring to Figure 1 and Figure 3 The adjustable assembled tower crane foundation construction ladder further comprises two guardrails 13, which are respectively arranged above the T-shaped support 1 and the telescopic ladder body, and the bottom portions of the two guardrails 13 are welded and fixed with the T-shaped support 1 and the telescopic ladder body, so as to protect the safety of personnel passing through the construction ladder passage.

[0042] Preferably, the guardrails 13 are divided into left and right sides, wherein the left side guardrail is arranged in a manner similar to the anti-falling guardrails on the two sides of the support beam at the construction site, and can be appropriately changed; and the right side guardrail and the patterned steel plate 12 can be considered to be arranged in a telescopic manner and are synchronous with the extracted length of the auxiliary ladder square steel 8.

[0043] Specifically, referring to Figure 4 In actual application of the adjustable assembled tower crane foundation construction ladder, the two T-shaped supports 1 of the assembled tower crane foundation construction ladder are arranged on the support beam and are attached to two boundary lines, and the inclined support 4 is welded on one side; the position of the movable square steel 2 and the Y-shaped support 3 is adjusted according to the width and height of the support beam, so that the movable square steel 2 and the Y-shaped support 3 are attached to the other two boundary lines of the support beam, and the movable square steel 2 and the Y-shaped support 3 are fixed on the T-shaped support 1 by bolts; after the universal fixing wheel 6 is fixed by bolts, the fixed square steel 5 is welded on the T-shaped support 1.

[0044] The main ladder square steel 7 and the universal fixing wheel 6 are anchored by bolts, the extracted length of the auxiliary ladder square steel 8 is adjusted according to the distance between the support beam and the tower crane foundation on site, and then the main ladder square steel 7 and the auxiliary ladder square steel 8 are anchored by bolts. The supporting leg 9 and the steel backing plate 10 are welded, and after the main ladder square steel 7 and the auxiliary ladder square steel 8 are anchored by bolts, the supporting leg 9 is placed at a suitable position of the tower crane foundation, and a non-slip pad 11 is arranged between the steel backing plate 10 and the tower crane foundation. The patterned steel plate 12 is laid on the side of the ladder body and is welded with the T-shaped support 1, the main ladder square steel 7 and the auxiliary ladder square steel 8; finally, the guardrail 13 is welded on the T-shaped support 1, the main ladder square steel 7 and the auxiliary ladder square steel 8.

[0045] It can be understood that the above examples are only examples for better understanding the technical solutions of the embodiments of the present application, and are not the only limitation of the embodiments.

[0046] Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0047] Obviously, various modifications and changes can be made to the utility model by those skilled in the art without departing from the spirit and scope of the utility model. Thus, if these modifications and changes belong within the scope of the utility model claims and their equivalents, the utility model also intends to include these modifications and changes.

Claims

1. An adjustable assembly type tower crane foundation construction ladder, characterized in that, The utility model relates to a tower crane, which comprises: an assembled frame body, including two mutually parallel support units, two vertical fixed square steels (5) arranged between the two support units and a fixed round steel (14); each support unit comprises a T-shaped support (1), a movable support (2), a Y-shaped support (3) and an inclined support (4); the top end of the Y-shaped support (3) is lifted and perpendicular to one side of a right angle of the T-shaped support (1); the movable support (2) is perpendicular to the other side of the right angle of the T-shaped support (1) and crosses the Y-shaped support (3) perpendicularly; the two supports can be adjusted and anchored along the respective vertical sides; the inclined support (4) is arranged between the other two sides of the right angle of the T-shaped support (1); two telescopic ladders, each comprising a main ladder square steel (7) and a vice ladder square steel (8); the vice ladder square steel (8) is sleeved in the main ladder square steel (7) and can be telescopically moved relative to the main ladder square steel (7); two pairs of universal fixed wheels, the fixed round steel (14) is arranged between the two pairs of universal fixed wheels; two universal fixed wheels (6) in each pair of universal fixed wheels are oppositely arranged to jointly hold and anchor the end of the main ladder square steel (7) and the T-shaped support (1) of the assembled frame body located between the two universal fixed wheels.

2. The adjustable assembly tower foundation construction ladder of claim 1, wherein, The two universal fixed wheels (6) cooperate with two bolts to jointly hold and anchor the end of the main ladder square steel (7) and the T-shaped support (1) of the assembled frame body located between the two universal fixed wheels, so that the T-shaped support (1) and the main ladder square steel (7) can rotate around the respective bolts.

3. The adjustable assembly tower foundation construction ladder of claim 1, wherein, Each universal fixed wheel comprises a disc body and a bolt hole formed along the circumference of the disc body.

4. The adjustable assembly tower foundation construction ladder of claim 1, wherein, A group of bolt holes are formed on the bodies of the two sides of the right angle of the T-shaped support (1) to support the anchoring of the movable support (2) and the Y-shaped support (3) after position adjustment along the respective vertical sides.

5. The adjustable assembly tower foundation construction ladder of claim 1, wherein, A group of bolt holes are formed on the middle sections of the bodies of the movable support (2) and the Y-shaped support (3) to support the anchoring of the movable support (2) and the Y-shaped support (3) after vertical crossing.

6. The adjustable assembly tower foundation construction ladder of claim 1, wherein, The utility model also comprises: two non-fixed legs, one end of each non-fixed leg is anchored to the vice ladder square steel (8) of a telescopic ladder by a bolt, and the other end is placed on the tower crane foundation.

7. The adjustable assembly tower foundation construction ladder of claim 6, wherein, Each non-fixed leg comprises a leg (9), a steel pad (10) and an anti-skid pad (11); one end of the leg (9) is anchored to the vice ladder square steel (8) of a telescopic ladder by a bolt, and the other end is welded to the steel pad (10); the anti-skid pad (11) is arranged between the steel pad (10) and the tower crane foundation.

8. The adjustable assembly tower foundation construction ladder of claim 7, wherein, The anti-skid pad (11) is a rubber anti-skid pad.

9. The adjustable assembly tower foundation construction ladder according to any one of claims 1 to 8, characterized in that The utility model also comprises: two patterned steel plates (12) respectively extending and being laid on the two T-shaped supports (1) and the two telescopic ladders and being welded and fixed thereto.

10. The adjustable assembly tower foundation construction ladder according to any one of claims 1 to 8, characterized in that The utility model also comprises: two guardrails (13) respectively extending and being arranged above a T-shaped support (1) and a telescopic ladder, and the bottoms of the two guardrails (13) are welded and fixed to the T-shaped support (1) and the telescopic ladder.