Steel structure ladder cage base and concrete slab connecting structure

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a steel structure ladder cage base and concrete slab connecting structure which comprises steel structure ladder cage stand columns and a concrete slab, the steel structure ladder cage base is fixed at the lower ends of the steel structure ladder cage stand columns, a connecting piece is embedded in the concrete slab, and the connecting piece comprises a reinforcing steel plate and a sleeve. The multiple sets of sleeves are fixedly arranged on the upper side of the reinforcing steel plate. Bolt holes corresponding to the sleeves are formed in the steel structure ladder cage base, screw rods penetrate through the bolt holes and are in threaded connection with the sleeves, nuts are arranged on the portions, located on the upper side of the steel structure ladder cage base, of the screw rods, and a protective cover is arranged on the upper side of the steel structure ladder cage base. The sleeve and the reinforcing steel plate are anchored in the concrete plate, the steel structure ladder cage base and the concrete plate are connected through the matched bolts, the rigidity and the stability of the joint are effectively improved by matching with the positioning blocks, and bolt deformation caused by component shaking when the ladder cage works is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to building engineering technical field especially relates to a steel structure ladder cage base and concrete slab connecting structure. BACKGROUND

[0002] Steel structure building has the advantages of light weight, high strength, good plasticity and toughness, and excellent plasticity and toughness, and is widely used in building structure design, and the bearing capacity and applicability of the steel structure depend on the connecting strength between the steel structure and the concrete, and to ensure the safety and practicability of the building structure, the connecting structure of the steel structure member and the concrete member is particularly important.

[0003] The existing connecting structure connects the steel structure member and the concrete member through pre-buried bolts or expansion bolts, which is simple to operate, but when installing, the steel structure is heavy, inconvenient to adjust, the member shakes, affects the alignment of the bolt hole, is difficult to keep stable, affects the bolt installation, and needs a positioning device to assist, after installation, there is a gap in the connecting piece fixing, the member shakes when the steel structure ladder cage works, which easily causes the bolt at the connecting position to deform and affects safety, the connecting structure is easily affected by the external environment for a long time, is impacted or corroded, affects the rigidity of the connecting position, and is difficult to reuse after damage. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a steel structure ladder cage base and concrete slab connecting structure.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A steel structure ladder cage base and concrete slab connecting structure, including steel structure ladder cage stand and concrete slab, the steel structure ladder cage stand lower extreme is fixed with steel structure ladder cage base, the concrete slab is pre-buried with connecting piece, the connecting piece includes reinforcing steel plate and sleeve, the sleeve is equipped with multiple groups, and is fixedly set on the reinforcing steel plate upside, the steel structure ladder cage base is opened with bolt hole that corresponds with the sleeve, the bolt hole is penetrated with screw rod, the screw rod is connected with the sleeve screw, and the screw rod is equipped with nut on the steel structure ladder cage base upside, and the steel structure ladder cage base upside is equipped with protective cover.

[0007] Preferably, the concrete slab upside is equipped with lifting lug, the steel structure ladder cage stand is welded and fixed with the steel structure ladder cage base, the steel structure ladder cage base lower side is equipped with positioning block, the concrete slab upper surface is opened with the positioning groove that the positioning block adapts, and the steel structure ladder cage base is in abutment with the concrete slab.

[0008] Preferably, the reinforcing steel plate is located in the middle lower part of the concrete slab, the sleeve top is not higher than the upper surface of the concrete slab, the bolt hole is coaxially arranged with the sleeve, and the diameter of the bolt hole is between the inner diameter and the outer diameter of the sleeve.

[0009] Preferably, the nut is threadedly connected with the screw rod, and a gasket is arranged between the nut and the steel structure ladder cage base.

[0010] Preferably, the top end of the screw rod is provided with a hexagonal head, and the diameter of the circumscribed circle of the hexagonal head is not greater than the minor diameter of the screw rod.

[0011] Preferably, a U-shaped groove adapted to the steel structure ladder cage stand is formed in the protective cover, and a positioning cap adapted to the screw rod is arranged on the lower side of the protective cover.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The sleeve and the reinforcing steel plate are anchored in the concrete slab, the reinforcing steel plate jointly bears the force transmitted by the ladder cage stand to the concrete slab, the load bearing capacity of the concrete slab is improved, the steel structure ladder cage base is connected with the concrete slab through the matched bolt, the rigidity and stability of the joint are effectively increased through the cooperation of the positioning block, the component is prevented from shaking during the work of the ladder cage, the bolt is prevented from being deformed, and the connection strength and reliability are affected;

[0014] 2. The steel structure ladder cage base and the concrete slab are connected through the nut and the screw rod, the structure is simple, the installation is convenient, the structure can be used repeatedly, the screw rod can be used as a guide positioning structure during installation, the structure is prevented from shaking and affecting the installation, the protective cover is provided, the connecting structure is protected, the influence of the external environment is reduced, and the service life and reliability of the parts are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A front view of a connecting structure of a steel structure ladder cage base and a concrete slab is provided in the utility model;

[0016] Figure 2 A connecting structure in the utility model is enlarged and shown in the figure; Figure 1

[0017] Figure 3 A top view of a connecting structure of a steel structure ladder cage base and a concrete slab is provided in the utility model.

[0018] In the figure: 1, steel structure ladder cage stand; 2, steel structure ladder cage base; 21, positioning block; 22, bolt hole; 3, lifting lug; 4, concrete slab; 5, reinforcing steel plate; 6, sleeve; 7, screw rod; 71, hexagonal head; 8, nut; 81, gasket; 9, protective cover. DETAILED DESCRIPTION ​

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] With reference to Figures 1-3 A steel structure ladder cage base and concrete slab connecting structure, including steel structure ladder cage stand 1 and concrete slab 4, the upper side of concrete slab 4 is provided with lifting lug 3, which facilitates transportation and hoisting, the lower end of steel structure ladder cage stand 1 is fixed with steel structure ladder cage base 2, and the two are welded, the lower side of steel structure ladder cage base 2 is provided with positioning block 21, the upper surface of concrete slab 4 is provided with positioning groove matched with positioning block 21, positioning block 21 improves the lateral compression resistance of the connecting part, protects the connecting structure, and steel structure ladder cage base 2 abuts against concrete slab 4 and is fixedly connected therebetween;

[0021] The connecting piece is embedded in the concrete slab 4, the connecting piece includes a reinforcing steel plate 5 and a sleeve 6, the sleeve 6 is provided with multiple groups, generally two rows and two columns, and is evenly arranged on the outer side of the steel structure ladder cage stand 1, the sleeve 6 is fixedly arranged on the upper side of the reinforcing steel plate 5, and the connection strength is improved by using stick arc welding, the top end of the sleeve 6 is not higher than the upper surface of the concrete slab 4, which is convenient for filling and repairing after removal, avoids the sleeve 6 from protruding and affecting the aesthetic appearance;

[0022] The reinforcing steel plate 5 is located in the middle lower side of the concrete slab 4, the embedding depth of the reinforcing steel plate 5 is generally about three-fourths of the thickness of the concrete slab 4, so as to avoid insufficient strength and concrete cracking, the size of the reinforcing steel plate 5 is within the interval between the steel structure ladder cage base 2 and the concrete slab 4, and is selected according to the size and load of the steel structure ladder cage;

[0023] The steel structure ladder cage base 2 is provided with bolt holes 22 corresponding to the sleeve 6, the bolt holes 22 are coaxially arranged with the sleeve 6, the diameter of the bolt holes 22 is between the inner diameter and the outer diameter of the sleeve 6, so as to avoid that the bolt holes 22 are too large and cause loosening of the connecting part and affect the working stability of the steel structure ladder cage;

[0024] A screw rod 7 is threaded through the bolt hole 22, and the screw rod 7 is threadedly connected with the sleeve 6, can be detached, and is convenient for adjusting the protruding height of the screw rod 7. The screw rod 7 is provided with a nut 8 on the upper side of the steel structure ladder cage base 2. The nut 8 is threadedly connected with the screw rod 7. A gasket 81 is arranged between the nut 8 and the steel structure ladder cage base 2. The sleeve 6, the screw rod 7 and the nut 8 form a connecting structure. The connecting structure is used for fixing and connecting the steel structure ladder cage base 2 and the concrete slab 4. The positioning block 21 prevents the steel structure ladder cage base 2 from horizontally sliding and protects the screw rod 7.

[0025] The screw rod 7 is provided with a hexagonal head 71 at the top end. The hexagonal head 71 is convenient for a construction worker to rotate out the screw rod 7 by using a wrench, is convenient for later removal, and the outer circumferential diameter of the hexagonal head 71 is not greater than the small diameter of the thread of the screw rod 7. The nut 8 is convenient for passing through and avoids interference and damage to the thread.

[0026] The steel structure ladder cage base 2 is provided with a protective cover 9 on the upper side. The protective cover 9 is provided with a U-shaped groove which is matched with the steel structure ladder cage stand 1. The protective cover 9 is convenient for installation. The lower side of the protective cover 9 is provided with a positioning cap which is matched with the screw rod 7. The positioning cap is used for protecting the connecting structure, preventing collision and rain, and improving the aesthetic appearance.

[0027] In the embodiment, the reinforcing steel plate 5 and the sleeve 6 are preselected, welded and fixed, and pre-buried in the corresponding positions of the concrete slab 4. After the concrete slab 4 is solidified and can bear pressure, the steel structure ladder cage is assembled. The steel structure ladder cage stand 1 and the steel structure ladder cage base 2 are welded. One or two screw rods 7 are rotated into the sleeve 6 as a positioning and guiding structure, which is convenient for quickly positioning the steel structure ladder cage base 2. The screw rod 7 passes through the bolt hole 22. Then, other screw rods 7 are installed. After being rotated to the appropriate height, the gasket 81 and the nut 8 are installed. After being fixed, the protective cover 9 is installed for waterproof protection.

[0028] After the construction is completed, when the steel structure ladder cage is removed, the hexagonal head 71 is directly rotated to detach the screw rod 7 and the nut 8, which is convenient for subsequent repeated use. The steel structure ladder cage base 2 is removed. The sleeve 6 is plugged and the surface is repaired.

[0029] The above merely describes a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0030] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting, in accordance with the example embodiments of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0031] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale as the dimensions of the parts shown therein are for the purpose of providing an illustration of the example embodiments only. Technical, methods and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered part of the specification as appropriate. In all examples shown and discussed herein, any specific values are to be interpreted as merely illustrative and not limiting. Thus, other examples of example embodiments can have different values. It is noted that like numbers and letters refer to like elements throughout the several views of the drawings and, as such, no further discussion with regard thereto is deemed necessary.

Claims

1. A connection structure between a steel structure ladder cage base and a concrete slab, comprising a steel structure ladder cage column (1) and a concrete slab (4), characterized in that, The lower end of the steel structure ladder cage column (1) is fixed with a steel structure ladder cage base (2). A connector is embedded in the concrete slab (4). The connector includes a reinforcing steel plate (5) and a sleeve (6). The sleeve (6) is provided in multiple sets and is fixedly set on the upper side of the reinforcing steel plate (5). The steel structure ladder cage base (2) is provided with bolt holes (22) corresponding to the sleeve (6). A screw (7) passes through the bolt holes (22). The screw (7) is threadedly connected to the sleeve (6). A nut (8) is provided on the upper side of the steel structure ladder cage base (2). A protective cover (9) is provided on the upper side of the steel structure ladder cage base (2).

2. The connection structure between the steel structure ladder cage base and the concrete slab according to claim 1, characterized in that, The concrete slab (4) is provided with a lifting lug (3) on the upper side, and the steel structure ladder cage column (1) is welded and fixed to the steel structure ladder cage base (2); The steel structure ladder cage base (2) is provided with a positioning block (21) on the lower side, and the upper surface of the concrete slab (4) is provided with a positioning groove that matches the positioning block (21). The steel structure ladder cage base (2) abuts against the concrete slab (4).

3. The connection structure between the steel structure ladder cage base and the concrete slab according to claim 1, characterized in that, The reinforcing steel plate (5) is located in the lower middle part of the concrete slab (4), and the top of the sleeve (6) is not higher than the upper surface of the concrete slab (4). The bolt hole (22) is coaxially arranged with the sleeve (6), and the diameter of the bolt hole (22) is between the inner diameter and the outer diameter of the sleeve (6).

4. The connection structure between the steel structure ladder cage base and the concrete slab according to claim 1, characterized in that, The nut (8) is threadedly connected to the screw (7), and a washer (81) is provided between the nut (8) and the steel structure ladder cage base (2).

5. The connection structure between the steel structure ladder cage base and the concrete slab according to claim 1, characterized in that, The screw (7) has a hexagonal head (71) at its top end, and the diameter of the circumscribed circle of the hexagonal head (71) is not greater than the minor diameter of the screw (7).

6. The connection structure between the steel structure ladder cage base and the concrete slab according to claim 1, characterized in that, The protective cover (9) has a U-shaped groove adapted to the steel structure ladder column (1), and the lower side of the protective cover (9) has a positioning cap adapted to the screw (7).

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