Standard knot connecting structure of general tower crane

Abstract

The utility model discloses a standard knot connecting structure of a general tower crane. The standard knot connecting structure comprises a standard knot main body structure and a ladder stand, the four edges of the top of the standard knot body structure are composed of connecting angle steel used for fixing the top end of the crawling ladder. Wherein the crawling ladder is connected with the standard knot main body structure through the connecting assembly; the crawling ladder comprises an inclined crawling ladder and a vertical crawling ladder; the connecting assembly comprises a sliding rail and a sliding block, wherein the sliding rail is formed in the connecting angle steel in the length direction; the number of the fixing pieces is two, and the fixing pieces are detachably connected with the top end of the crawling ladder; the fixing piece slides in the sliding rail so as to be adaptively connected to the tops of crawling ladders with different widths; therefore, an operator can choose to install a vertical ladder stand or an inclined ladder stand, and can also adapt to ladder stands with different widths; therefore, the problem that too much rental resources and management resources are occupied is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, in particular to a standard section connection structure of a universal tower crane. Background Art

[0002] The tower crane tower body is assembled from standard sections, so a ladder is set inside the standard section for operators to climb up and down. At present, the standard section ladders of tower cranes on the market are roughly divided into two categories, one is a straight ladder perpendicular to the horizontal plane, and the other is an inclined ladder at about 75° to the horizontal plane. However, since the two types of ladders have requirements for the installation of standard sections, there are slight differences in the structures of the two standard sections and they cannot be used interchangeably.

[0003] Therefore, when constructing the tower crane body, it is necessary to reserve two different standard sections at the same time, which in turn requires more resources from the leasing unit; and in terms of management, it is easy for the wrong standard section to be sent, resulting in the ladder being unable to be installed. Summary of the invention

[0004] In view of the above technical problems, the utility model provides a standard section connection structure of a universal tower crane.

[0005] Therefore, the purpose of the present invention is to design a standard section connection structure for a universal tower crane, using a fixing member that can be quickly installed at the end of the ladder and can adjust the width; thereby, the present invention can choose to install a straight ladder or an inclined ladder, and can also adapt to ladders of different widths; thereby, the problem of occupying too many rental resources and management resources is solved.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical means:

[0007] A standard section connection structure of a general tower crane comprises a standard section main structure and a ladder; the top four edges of the standard section main structure are composed of connecting angle steels for fixing the top of the ladder; wherein the ladder is connected to the standard section main structure through a connecting assembly; the ladder comprises an inclined ladder and a straight ladder; the connecting assembly comprises:

[0008] A slide rail, which is provided on the connecting angle steel along the length direction;

[0009] Two fixing members are provided and are detachably connected to the top end of the ladder;

[0010] The fixing member slides in the slide rail to adapt to being connected to the top of ladders with different widths.

[0011] The fixing piece is a columnar structure, with a long hollow hole on the side and a through hole for the bolt to pass through inside; the fixing piece is used to expand and squeeze the side wall of the slide rail laterally when the bolt is tightened vertically;

[0012] The bottom of the fixing piece is connected with a cross bar for fixing the ladder.

[0013] The side wall of the slide rail is configured as a concave structure for fitting against the deformed side wall of the fixing member.

[0014] The cross bar is connected and fixed to the top of the ladder via a pin shaft.

[0015] The fixing piece is made of a deformable flexible metal material.

[0016] The bottom four corners of the main structure of the standard section are provided with four connection holes in a circular array around its central axis;

[0017] An inclined ladder platform is fixed at the bottom of the inclined ladder; inclined ladder platform connecting seats are installed in a circular array around the central axis of the inclined ladder platform at the four corners;

[0018] The inclined ladder platform connecting seat is connected to the connecting hole through bolts to detachably fix the inclined ladder platform to the bottom of the standard section main structure.

[0019] Beneficial effects:

[0020] The standard section connection structure designed by the utility model can utilize the fixing parts sliding in the angle steel, thereby allowing the end of the ladder to be quickly installed on the fixing parts with adjustable width; thereby, the present invention can choose to install a straight ladder or an inclined ladder, and can also adapt to ladders of different widths; thereby, the problem of occupying too many rental resources and management resources is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the observation device of the utility model;

[0022] Figure 2 It is a structural schematic diagram of another viewing angle of the observation device of the utility model;

[0023] Figure 3 It is a side view of the observation device of the utility model;

[0024] Figure 4 A top view of the observation device of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the fixing part of the observation equipment of the utility model.

[0026] In the figure: 1. Main structure of standard section; 2. Ladder connecting angle steel; 21. Slide rail; 22. Fixing piece; 221. Hollow hole; 222. Through hole; 3. Inclined ladder platform connecting hole; 4. Inclined ladder connecting rod; 5. Inclined ladder; 6. Handrail; 7. Inclined ladder platform; 8. Inclined ladder platform connecting seat; 9. Straight ladder connecting bracket; 10. Straight ladder connecting pin; 11. Straight ladder. DETAILED DESCRIPTION

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] A standard section connection structure of a universal tower crane comprises a standard section main structure and a ladder; the top four edges of the standard section main structure are composed of connecting angle steels for fixing the top end of the ladder; the ladder comprises a straight ladder and an inclined ladder; the structure comprises: a slide rail which is provided on the connecting angle steel along the length direction; two fixing pieces which are provided and are detachably connected to the top end of the ladder; the fixing pieces slide in the slide rails to adapt to being connected to the top end of the ladder at different widths.

[0030] The fixing piece is a columnar structure, with a long hollow hole on the side and a through hole inside for the bolt to pass through; the fixing piece is used to expand and squeeze the side wall of the slide rail when the bolt is tightened vertically; the bottom of the fixing piece is connected to a crossbar for fixing the ladder. The side wall of the slide rail is set as a concave structure to fit the side wall of the fixing piece after deformation.

[0031] The cross bar is connected and fixed to the top of the ladder through a pin shaft; the cross bar specifically includes a straight ladder connecting bracket for connecting the straight ladder and an inclined ladder connecting rod for connecting the inclined ladder.

[0032] In order to ensure that the fixing piece can be smoothly stuck in the inside of the slide rail, the fixing piece is made of a deformable flexible metal material; specifically, the fixing piece can be made of stainless steel, copper and other materials.

[0033] Four connecting holes are provided at the four corners of the bottom of the main structure of the standard section in a circular array around its own central axis; an inclined ladder platform is fixed to the bottom of the inclined ladder; wherein, an inclined ladder platform connecting seat is installed at the four corners of the inclined ladder platform in a circular array around its own central axis; the inclined ladder platform connecting seat is connected to the connecting holes by bolts, so as to detachably fix the inclined ladder platform to the bottom of the main structure of the standard section.

[0034] Working principle:

[0035] When installing the inclined ladder, first pre-fix the fixings inside the slide rails, and then install the two inclined ladder connecting rods on the fixings by bolts respectively; at this time, with the fixing of the bolts, the fixings are deformed and fixed on the slide rails inside the ladder connection angle steel, and the other end of the inclined ladder connecting rod is fixed on the top of the inclined ladder; then, install the four inclined ladder platform connecting seats on the inclined ladder platform connecting holes by bolts. Next, install the inclined ladder platform on the four inclined ladder platform connecting seats by bolts, and the upper end of the inclined ladder is fastened to the inclined ladder connecting plate, and the lower end is fixed to the inclined ladder platform.

[0036] When a straight ladder needs to be replaced, first remove the inclined ladder connecting rod, inclined ladder, handrail, inclined ladder platform, and inclined ladder platform connecting seat; then, adjust the position of the fixing parts in the slide rail, and fix the fixing parts to the two straight ladder connecting brackets; then, fix the straight ladder connecting brackets to the top of the straight ladder; finally, install and fix the straight ladder connecting brackets through the straight ladder connecting pin shaft to complete the fixation of the straight ladder width, and install the straight ladder platform on the transverse web of the standard section main structure; thereby, the change from an inclined ladder to a straight ladder is completed.

Claims

1. A standard section connection structure of a general tower crane, comprising a standard section main structure and a ladder; the top four edges of the standard section main structure are composed of connecting angle steels for fixing the top of the ladder; wherein, The ladder is connected to the standard section main structure through a connecting assembly; the ladder includes an inclined ladder and a straight ladder; Characterized in that the connecting component comprises: A slide rail, which is provided on the connecting angle steel along the length direction; Two fixing members are provided and are detachably connected to the top end of the ladder; The fixing member slides in the slide rail to adapt to being connected to the top of ladders with different widths.

2. The standard section connection structure of a universal tower crane according to claim 1, characterized in that: The fixing piece is a columnar structure, with a long hollow hole on the side and a through hole for the bolt to pass through inside; the fixing piece is used to expand and squeeze the side wall of the slide rail laterally when the bolt is tightened vertically; The bottom of the fixing piece is connected with a cross bar for fixing the ladder.

3. The standard section connection structure of a universal tower crane according to claim 2, characterized in that: The side wall of the slide rail is configured as a concave structure for fitting against the deformed side wall of the fixing member.

4. The standard section connection structure of a universal tower crane according to claim 2, characterized in that: The cross bar is connected and fixed to the top of the ladder via a pin shaft.

5. The standard section connection structure of a universal tower crane according to claim 3, characterized in that: The fixing piece is made of a deformable flexible metal material.

6. The standard section connection structure of a universal tower crane according to claim 1, characterized in that: The bottom four corners of the main structure of the standard section are provided with four connection holes in a circular array around its central axis; An inclined ladder platform is fixed at the bottom of the inclined ladder; inclined ladder platform connecting seats are installed in a circular array around the central axis of the inclined ladder platform at the four corners; The inclined ladder platform connecting seat is connected to the connecting hole through bolts to detachably fix the inclined ladder platform to the bottom of the standard section main structure.

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