A tower crane standard section with quick variable cross section

Abstract

The utility model discloses a quick variable cross section tower crane standard section. Including inside standard section and a plurality of single support leg, the inside standard section includes a plurality of stand and the support column fixed between a plurality of stand, the single support leg interval setting is in the outside of stand, the upper and lower both ends outside of stand is fixed with first connecting flange respectively, the upper and lower both ends of single support leg are fixed with second connecting flange respectively, first connecting flange is used to realize the fixed between two inside standard sections, or with second connecting flange fixed connection, to fix the single support leg in the outside of inside standard section, second connecting flange is used to realize the single support leg fixed connection of two inside standard section outside. The utility model solves the transportation problem of tower crane standard section, and the whole assembly is simple, reduces the production cost of standard section, improves the utilization of standard section.

Description

Technical Field

[0001] This utility model relates to the field of tower crane technology, specifically to a standard section of a tower crane with a rapidly variable cross-section. Background Technology

[0002] Currently, the main types of standard tower crane sections are integral and modular. Integral standard sections are limited by transportation conditions and cannot be matched with large and super-large tower cranes. While modular standard sections solve the transportation problem, they require high precision in manufacturing, have low on-site assembly efficiency, and require a large number of auxiliary personnel and equipment. With the continuous development of intelligent, green, and environmentally friendly buildings and super-large building structures, the demand for tower cranes is becoming increasingly diversified, and existing tower cranes cannot meet the needs. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a tower crane standard section with a rapidly variable cross-section.

[0004] To achieve the above objectives, this utility model provides a tower crane standard section with a rapidly variable cross-section, comprising an inner standard section and several single legs. The inner standard section includes several columns and support columns fixed between the columns. The single legs are spaced apart on the outer side of the columns. A first connecting flange is fixed to the outer side of the upper and lower ends of each column, and a second connecting flange is fixed to the upper and lower ends of each single leg. The first connecting flange is used to fix two inner standard sections together, or to fix them together with the second connecting flange to fix the single legs on the outer side of the inner standard section. The second connecting flange is used to fix the single legs on the outer side of two inner standard sections together.

[0005] Furthermore, there are four columns.

[0006] Furthermore, the first connecting flange is provided with a plurality of first connecting holes and a plurality of second connecting holes, and the second connecting flange is provided with a plurality of third connecting holes and a fourth connecting hole. The plurality of first connecting holes are used for a plurality of first bolts to pass through to achieve a fixed connection between the two inner standard sections. The second connecting holes and third connecting holes are used for second bolts and locating pins to pass through to achieve a fixed connection between the first connecting flange and the second connecting flange. The fourth connecting hole is used for a third bolt to pass through to achieve a fixed connection between the single leg on the outer side of the two inner standard sections.

[0007] Furthermore, the plurality of first connecting holes are arranged in a circular array with the column as the center.

[0008] Furthermore, there are three connecting holes for both the second and third connections, and the positioning pin is disposed in the middle of the second and third connecting holes.

[0009] Furthermore, a first connecting plate is fixed to the outer side of the column, and a second connecting plate is provided in the middle of the single leg. The first connecting plate and the second connecting plate are bolted together.

[0010] Furthermore, the second connecting flange is located on the side of the first connecting flange away from the column, and the first connecting plate is located on the lower side of the second connecting plate.

[0011] Beneficial effects: This utility model sets the standard section into two parts: an inner standard section and a single leg. The number of inner standard sections can be selected and fixed according to needs, which is suitable for small and medium-sized tower cranes and solves the transportation problem of standard sections for tower cranes. The single leg can be fixed on the outside of the inner standard section as needed, thereby increasing the cross-section of the standard section and making it suitable for large and super-large tower cranes. The overall assembly is simple, reducing the production cost of the standard section and improving the utilization rate of the standard section. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the inner standard section of an embodiment of this utility model; Figure 2 yes Figure 1 A magnified schematic diagram of a portion of region A in the middle; Figure 3 This is a structural schematic diagram of a standard section of a tower crane with a rapidly variable cross-section; Figure 4 yes Figure 3 A magnified schematic diagram of a portion of region B. Detailed Implementation

[0013] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented under the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0014] like Figures 1 to 4As shown, this utility model embodiment provides a tower crane standard section with a rapidly variable cross-section, including an inner standard section 1 and several single legs 2. The inner standard section 1 includes several columns 11 and support columns 12. Preferably, there are four columns 11, which are arranged at the four vertices of a square. There are multiple support columns 12, which are fixed between the columns 11. The single legs 2 are spaced apart on the outside of the columns 11. A first connecting flange 13 is fixed to the outer side of the upper and lower ends of the columns 11, and a second connecting flange 21 is fixed to the upper and lower ends of the single legs 2. The first connecting flange 13 can be used to fix two inner standard sections 1 together. Specifically, the upper and lower inner standard sections 1 can be arranged longitudinally. The first connecting flange 13 at the upper end of the lower inner standard section 1 is fixed to the first connecting flange 13 at the lower end of the upper inner standard section 1, thereby fixing the two inner standard sections 1 together. The first connecting flange 13 is also fixedly connected to the second connecting flange 21, thereby fixing the single legs 2 to the outside of the inner standard section 1. The second connecting flange 21 is also used to fix the single leg 2 on the outer side of the two inner standard sections 1, thereby fixing the two inner standard sections 1 and the single leg 2 on the outer side of the two inner standard sections 1 together, thereby increasing the cross section of the standard section.

[0015] For ease of fixing, the first connecting flange 13 has multiple first connecting holes 131 and multiple second connecting holes 132, and the second connecting flange 21 has multiple third connecting holes 211 and fourth connecting holes 212. When directly fixing the two inner standard sections 1, multiple first bolts 3 are passed through the multiple first connecting holes 131 of the upper and lower first connecting flanges 13, and multiple nuts are used to fix the two inner standard sections 1 together. When it is necessary to increase the cross-section of the standard section, second bolts 4 and locating pins 5 are passed through the corresponding second connecting holes 132 and third connecting holes 211, and several nuts are used to fix the first connecting flange 131 and the second connecting flange 21. When fixing the two standard sections with increased cross-sections, multiple third bolts 6 are passed through the fourth connecting holes 212 of the upper and lower second connecting flanges 21, and nuts are used to fix the single legs 2 on the outside of the two inner standard sections 1. Since the single legs 2 are already fixed to the first connecting flanges 13 on the inner standard sections 1 through the second connecting flanges 21, the two standard sections with increased cross-sections are thus fixed together. The four single legs 2, once fixed, are positioned at the four vertices of a larger square.

[0016] In this embodiment of the invention, the plurality of first connecting holes 131 are preferably arranged in a circular array with the column 11 as the center, which provides better stability when the two inner standard sections 1 are directly fixed. The aforementioned second connecting holes 132 are located outside the first connecting holes 131. There are three second connecting holes 132 and three third connecting holes 211. The two outer, oppositely arranged second connecting holes 132 and three connecting holes 211 are used for the second bolt 4 to pass through for fixing, and the positioning pin 5 is located in the middle second connecting hole 132 and three connecting hole 211.

[0017] To further improve stability, it is preferable to fix a first connecting plate 14 to the outside of the column 11, and a second connecting plate 22 is provided in the middle of the single leg 2. The first connecting plate 14 and the second connecting plate 22 are fixedly connected by a number of fourth bolts 7. The second connecting flange 21 is preferably located on the side of the first connecting flange 13 away from the column 11, that is, the upper second connecting flange 21 is located on the upper side of the upper first connecting flange 13, and the lower second connecting flange 21 is located on the lower side of the lower first connecting flange 13. The first connecting plate 14 is preferably located on the lower side of the second connecting plate 22.

[0018] The above description is merely a preferred embodiment of this utility model. It should be noted that for those skilled in the art, other parts not specifically described are existing technology or common knowledge. Several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A standard section for a tower crane with a rapidly variable cross-section, characterized in that, The device includes an inner standard section and several single legs. The inner standard section includes several columns and support columns fixed between the columns. The single legs are spaced apart on the outer side of the columns. The upper and lower outer sides of the columns are respectively fixed with first connecting flanges, and the upper and lower outer sides of the single legs are respectively fixed with second connecting flanges. The first connecting flanges are used to fix two inner standard sections together, or to fix them to the outer side of the inner standard section. The second connecting flanges are used to fix the single legs on the outer side of two inner standard sections together.

2. The standard section of a tower crane with a rapidly variable cross-section according to claim 1, characterized in that, There are four pillars.

3. A tower crane standard section with rapidly variable cross-section according to claim 1, characterized in that, The first connecting flange is provided with a plurality of first connecting holes and a plurality of second connecting holes, and the second connecting flange is provided with a plurality of third connecting holes and a fourth connecting hole. The plurality of first connecting holes are used for a plurality of first bolts to pass through to achieve a fixed connection between the two inner standard sections. The second connecting holes and third connecting holes are used for second bolts and locating pins to pass through to achieve a fixed connection between the first connecting flange and the second connecting flange. The fourth connecting hole is used for a third bolt to pass through to achieve a fixed connection between the single leg on the outer side of the two inner standard sections.

4. A tower crane standard section with rapidly variable cross-section according to claim 3, characterized in that, The plurality of first connecting holes are arranged in a circular array with the column as the center.

5. A tower crane standard section with rapidly variable cross-section according to claim 3, characterized in that, There are three connecting holes in both the second and third connections, and the positioning pin is located in the middle of the second and third connecting holes.

6. A tower crane standard section with rapidly variable cross-section according to claim 3, characterized in that, A first connecting plate is fixed to the outside of the column, and a second connecting plate is provided in the middle of the single leg. The first connecting plate and the second connecting plate are bolted together.

7. A tower crane standard section with rapidly variable cross-section according to claim 6, characterized in that, The second connecting flange is located on the side of the first connecting flange away from the column, and the first connecting plate is located on the lower side of the second connecting plate.

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