Steel structure net rack jacking support

Abstract

The utility model belongs to the technical field of jacking supports, and particularly relates to a jacking support for a steel structure net rack. The problem that eccentricity is prone to occurring in a single-point jacking mode is solved. The main supporting structure is arranged on the lifting frame and used for bearing the welding ball; one end of each auxiliary supporting structure is fixed to the main supporting structure, and the other end of each auxiliary supporting structure is used for bearing a rod piece welded to the welding ball. The combination of the main supporting structure and the auxiliary supporting structure can effectively reduce the probability of eccentricity in the process that the jacking frame rises step by step.

Description

Technical Field

[0001] The utility model belongs to the technical field of jacking supports, in particular to a steel structure grid jacking support. Background Art

[0002] The grid is a spatial structure formed by connecting multiple rods through nodes in a certain grid form. The basic units that make up the grid are triangular pyramids, triangular prisms, cubes, truncated quadrangular pyramids, etc. These basic units can be combined into plane shapes of triangles, quadrilaterals, hexagons, circles or any other shapes. It has the advantages of spatial force, light weight, high rigidity, and good seismic performance; it can be used as the roof of gymnasiums, theaters, exhibition halls, waiting halls, stadium stand awnings, hangars, two-way large column grid structure workshops and other buildings. The disadvantage is that there are more rods converging on the nodes, and the production and installation are more complicated than the plane structure.

[0003] There are two types of construction and installation methods for grid structures: one is the overall jacking method, overall lifting method and overall hoisting method for ground assembly; the other is the bulk assembly at high altitude, assembly in strips and blocks, and assembly in high altitude sliding. In the overall jacking method, jacking supports are required. In the process of gradual jacking of the grid, the jacking frame gradually rises as the jacking height of the grid increases. In the process of gradual raising of the jacking frame, the standard inter-section of the jacking frame is prone to eccentricity, which in turn causes eccentric force on the jack.

[0004] Since the existing steel structure grid lifting support has a supporting structure for the welding ball, during the lifting process, the single-point lifting method is prone to eccentricity, so it is necessary to design a structure for grid lifting. Summary of the invention

[0005] In order to solve the problem that a single-point jacking method is prone to eccentricity, the utility model provides a steel structure grid jacking support.

[0006] The utility model adopts the following technical scheme: a steel structure grid lifting support, comprising:

[0007] Lifting frame;

[0008] A main support structure, which is arranged on the lifting frame and is used to support the welding ball;

[0009] A plurality of auxiliary support structures are provided, wherein one end of the auxiliary support structure is fixed on the main support structure, and the other end is used for supporting the rod welded with the welding ball.

[0010] In some embodiments, the main support structure includes a support column, a main support hydraulic cylinder fixed to the bottom of the support column, and a ball bearing seat fixed to the top of the support column.

[0011] In some embodiments, the ball bearing seat is a partially hollow spherical structure.

[0012] In some embodiments, the secondary support structure includes a supporting diagonal rod, a supporting ring and a secondary support hydraulic cylinder. One end of the supporting diagonal rod is installed on the supporting column, and the other end is provided with a supporting ring for fixing the rod. A secondary support hydraulic cylinder is provided at the bottom of the supporting diagonal rod for adjusting the height.

[0013] In some embodiments, a first fixing ring is provided at the lower end of the supporting diagonal rod, and the first fixing ring is sleeved on the supporting column and fixed to the supporting column by a first fixing bolt.

[0014] In some embodiments, a first mounting plate is disposed at the upper end of the supporting diagonal rod, and the first mounting plate is parallel to the upper end surface of the lifting frame, and the supporting ring is mounted on the first mounting plate.

[0015] In some embodiments, the first fixing rings of the plurality of supporting diagonal rods are sequentially sleeved on the supporting columns from top to bottom.

[0016] In some embodiments, a partition is provided between the main supporting hydraulic cylinder and the supporting column, a plurality of first fixing rings are sequentially sleeved on the supporting column on the partition, and the upper first fixing ring is pressed on the lower first fixing ring.

[0017] In some embodiments, a fixing groove is further provided on the support column, and a first fixing bolt is rotatably inserted into the fixing groove to ensure the stability of the secondary support structure.

[0018] Compared with the prior art, when fixing the steel grid, the utility model uses the main support structure to support the welding ball, and the auxiliary support structure to support the rod welded to the welding ball, thereby increasing the force points during jacking, enhancing the stability during jacking, and helping to prevent eccentricity. During jacking, the auxiliary support structure not only supports the rod, but also effectively connects the auxiliary support structure to the rod, thereby avoiding the offset between the rod and the auxiliary support structure during jacking. The combination of the main support structure and the auxiliary support structure in the utility model can effectively reduce the probability of eccentricity during the gradual raising of the jacking frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structural diagram of the steel structure grid lifting support;

[0020] Figure 2 It is a schematic diagram of the use status of the steel structure grid lifting support;

[0021] In the figure: 1-lifting frame; 2-support column; 3-main support hydraulic cylinder; 4-ball bearing seat; 5-support diagonal rod; 6-support ring; 7-auxiliary support hydraulic cylinder; 8-first fixing ring; 9-first mounting plate; 10-fixing part; 11-welding ball; 12-rod; 13-partition; 14-first fixing bolt; 15-connecting seat. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] like Figure 1 , 2 As shown, a steel structure grid lifting support includes a lifting frame and a main supporting structure and a secondary supporting structure arranged on the lifting frame. The main supporting structure is used to support a central welding ball, and the secondary supporting structure is used to support rods located in the same plane around the welding ball.

[0024] The lifting frame 1 adopts a scissor lift frame. The main support structure includes a support column 2, a main support hydraulic cylinder 3 fixed to the bottom of the support column 2, and a ball support seat 4 fixed to the top of the support column 2. The support column 2 is vertically arranged, and the main support hydraulic cylinder 3 is also vertically arranged, and the upper and lower ends are respectively fixedly connected to the support column 2 and the upper end surface of the lifting frame 1, and the ball support seat 4 is a partially hollow spherical structure, so that the welding ball can be supported.

[0025] The secondary support structure includes a supporting diagonal rod 5, a supporting ring 6 and a secondary support hydraulic cylinder 7. A first fixing ring 8 is arranged at the bottom of the supporting diagonal rod 5. The first fixing ring 8 is sleeved on the outside of the supporting column 2 and fixed to the supporting column 2 by a first fixing bolt 14. A first mounting plate 9 is integrally arranged on the top of the supporting diagonal rod 5. The first mounting plate 9 is parallel to the upper end surface of the lifting frame 1, and the supporting ring 6 is installed on the first mounting plate 9.

[0026] In order to enable the supporting ring 6 to stably support the rods welded with the welding ball, to effectively connect the auxiliary supporting structure with the rods, and to support rods of different diameters, fixing parts such as binding straps and pipe clamps are provided on the supporting ring. The number of auxiliary supporting structures is set according to the number of rods to be supported, the height of the supporting ring 6 is set according to the height of the rods to be supported, and the first fixing rings 8 at the bottom of the multiple supporting diagonal rods 5 are arranged up and down and sleeved on the supporting column 2. The auxiliary supporting hydraulic cylinder 7 is installed on the upper end surface of the lifting frame 1 and is perpendicular to the upper end surface of the lifting frame 1. A connecting seat 15 is provided on the lower side of the middle part or the middle upper part of the supporting diagonal rod 5. The output shaft end of the auxiliary supporting hydraulic cylinder 7 is connected to the connecting seat 15, thereby providing a stable supporting effect on the supporting diagonal rod 5.

[0027] A partition 13 is provided between the main support hydraulic cylinder 3 and the support column 2. A plurality of first fixing rings 8 are sequentially sleeved on the support column 2 on the partition 13, and the upper first fixing ring 8 is pressed on the lower first fixing ring 8, effectively preventing the first fixing ring from shifting downward during jacking. A fixing groove is also provided on the support column, and the first fixing bolt is rotatably inserted into the fixing groove to ensure the stability of the secondary support structure.

[0028] A secondary support structure is provided to support the rods welded to the welding balls, increase the stress points, and enhance the stability during jacking. The secondary support structure is effectively connected to the rods, thereby avoiding the offset between the rods and the secondary support structure during jacking. The combination of the main support structure and the secondary support structure can effectively reduce the probability of eccentricity during the gradual raising of the jacking frame.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A steel structure grid lifting support, characterized in that: include: Lifting frame; A main support structure, which is arranged on the lifting frame and is used to support the welding ball; The main support structure includes a support column, a main support hydraulic cylinder fixed to the bottom of the support column, and a ball support seat fixed to the top of the support column; the ball support seat is a partially hollow spherical structure; A plurality of auxiliary support structures, one end of each auxiliary support structure is fixed to the main support structure, and the other end is used to support the rod welded to the welding ball; The auxiliary support structure includes a supporting diagonal rod, a supporting ring and an auxiliary support hydraulic cylinder. One end of the supporting diagonal rod is installed on the supporting column, and the other end is provided with a supporting ring for fixing the rod. The auxiliary support hydraulic cylinder is provided at the bottom of the supporting diagonal rod for adjusting the height.

2. The steel structure grid lifting support according to claim 1 is characterized in that: A first fixing ring is arranged at the lower end of the supporting diagonal rod. The first fixing ring is sleeved on the supporting column and fixed to the supporting column by a first fixing bolt.

3. The steel structure grid lifting support according to claim 1 is characterized in that: A first mounting plate is arranged at the upper end of the supporting inclined rod, and the first mounting plate is parallel to the upper end surface of the lifting frame, and the supporting ring is mounted on the first mounting plate.

4. The steel structure grid lifting support according to claim 2 is characterized in that: The first fixing rings of the plurality of supporting oblique rods are sequentially sleeved on the supporting columns from top to bottom.

5. The steel structure grid lifting support according to claim 4 is characterized in that: A partition is arranged between the main supporting hydraulic cylinder and the supporting column, and a plurality of first fixing rings are sequentially sleeved on the supporting column on the partition, and the upper first fixing ring is pressed on the lower first fixing ring.

6. The steel structure grid lifting support according to claim 1, characterized in that: The support column is also provided with a fixing groove, and the first fixing bolt is rotatably inserted into the fixing groove to ensure the stability of the auxiliary supporting structure.

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