Circular tube rod piece reducing welding ball joint comprising hollow connecting hemisphere

Abstract

The utility model discloses a round tube rod piece reducing welding ball joint containing a hollow connecting hemisphere, which comprises a welding ball, a small-diameter round tube, a hollow connecting hemisphere, a cross-shaped annular stiffening rib plate, a circular ring end plate and a round tube rod piece, the hollow connecting hemisphere is connected with the cross-shaped annular stiffening rib plate and the circular ring end plate through butt welding seams and connected with the small-diameter circular pipe through butt welding seams, and the circular pipe rod piece is connected with the circular ring end plate through butt welding seams. The ribbed hollow connecting hemisphere and the small-diameter circular tube are introduced between the circular tube rod piece and the welding ball, so that the diameter of the welding ball can be effectively reduced, the steel consumption and the weight of the welding ball are reduced, meanwhile, manufacturing and mounting of engineering components are facilitated, the engineering progress is greatly accelerated, and good economic benefits can be obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of large span space grid structure, concretely to a kind of pipe rod piece shrinkage welding ball node containing hollow connecting hemisphere. BACKGROUND

[0002] With the rapid development of modern construction technology, the application of large-span space grid structure in the field of construction gradually expands, covering various major engineering projects such as gymnasiums, exhibition centers, airport terminals and commercial complexes. This type of structure has become a popular choice for modern architectural design due to its unique geometric shape and aesthetic effect, as well as its excellent load-bearing capacity and space utilization efficiency. However, in the design and construction of large-span space grid structure, the design of the node connection part has always been an important technical difficulty. Traditional welded ball nodes use large-diameter steel pipes as main rod connections. Although this method can ensure the strength and stiffness of the node, it also brings some problems. First, the use of large-diameter steel pipes not only increases the overall volume and weight of the node, but also puts higher requirements on construction, transportation and installation, leading to an increase in construction cost. Second, the traditional welded ball node often reduces the flexibility and efficiency of space due to its large volume, affecting the overall design aesthetics of the building. In this context, it is particularly necessary to design a new form of welded ball node. The new node design needs to maintain the strength and stiffness of the welded ball, and achieve lightweight by optimizing the diameter of the rod at both ends, thereby reducing the overall weight of the structure. SUMMARY

[0003] The utility model aims at providing a kind of pipe rod piece shrinkage welding ball node containing hollow connecting hemisphere, which will overcome the shortcomings of traditional welded hollow ball node in the above background technology, effectively reduce the diameter of welded ball, reduce the steel consumption and weight of welded ball, thereby reducing the overall steel consumption and weight of space grid structure containing welded ball node.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of pipe rod piece shrinkage welding ball node containing hollow connecting hemisphere, including welded ball, small-diameter pipe, hollow connecting hemisphere, cross ring-shaped stiffening rib plate, circular ring end plate and pipe rod piece, characterized by: the welded ball is connected with small-diameter pipe by butt weld, the hollow connecting hemisphere is connected with cross ring-shaped stiffening rib plate and circular ring end plate by butt weld and connected with small-diameter pipe by butt weld, and the pipe rod piece is connected with circular ring end plate by butt weld.

[0005] Further, the cross-sectional area of the small-diameter pipe and the cross-sectional area of the pipe rod piece are equal.

[0006] Further, the diameter of the hollow connecting hemisphere is equal to the outer diameter of the pipe rod piece.

[0007] Further, the size of the center hole of the cross ring stiffening rib plate is between 1 / 2-1 / 3 of the outer diameter of the circular tube rod, and the outer diameter of the cross ring stiffening rib plate is equal to the inner diameter of the hollow connecting hemisphere.

[0008] Further, the size of the center hole of the circular ring end plate is between 1 / 2-1 / 3 of the outer diameter of the circular tube rod.

[0009] A processing and installation step of a circular tube rod diameter-reducing welded ball joint containing a hollow connecting hemisphere:

[0010] Step one: processing the circular ring end plate according to the engineering requirements in the factory.

[0011] Step two: processing the cross ring stiffening rib plate according to the engineering requirements in the factory.

[0012] Step three: processing the hollow connecting hemisphere according to the engineering requirements in the factory.

[0013] Step four: firstly, welding the cross ring stiffening rib plate with the inner side of the hollow connecting hemisphere in the factory, then welding the circular ring end plate with the circular tube rod, welding the hollow connecting hemisphere with the outer side of the circular ring end plate, and finally welding the small-diameter circular tube with the outer side of the hollow connecting hemisphere.

[0014] Step five: welding the small-diameter circular tube with the welded ball at the construction site, and completing the installation.

[0015] The beneficial effects of the utility model are:

[0016] 1. The joint introduces the ribbed hollow connecting hemisphere and the small-diameter circular tube between the circular tube rod and the welded ball, plays the role of reducing the diameter of the rod, can effectively reduce the diameter of the welded ball, and reduce the steel quantity and weight of the welded ball.

[0017] 2. Under the condition of meeting the strength and rigidity, by limiting the size of the cross ring stiffening rib plate and the circular ring end plate, the steel quantity of the cross ring stiffening rib plate and the circular ring end plate is minimized, so that the overall steel quantity and weight of the circular tube rod diameter-reducing welded ball joint containing the hollow connecting hemisphere are reduced.

[0018] 3. In the joint connection, the welding work between the cross ring stiffening rib plate, the hollow connecting hemisphere, the circular ring end plate and the circular tube rod is all completed in the factory, the welding quality can be guaranteed, and the standardized industrialized production is realized.

[0019] 4. The engineering component manufacturing and installation are facilitated, the engineering progress is greatly accelerated, and better economic benefits can be obtained. DRAWINGS

[0020] Fig. 1 It is the overall structure section schematic view of the utility model.

[0021] Fig. 2 is the whole structure perspective view of the utility model.

[0022] Mark explanation: 1-welding ball; 2-small diameter pipe; 3-hollow connecting hemisphere; 4-cross ring stiffening rib plate; 5-ring end plate; 6-tube rod. Specific embodiments

[0023] In order to make the utility model purpose, technical scheme and advantage more clearly, below will combine the drawings in the utility model embodiment, and make further detailed description to the utility model.

[0024] The schematic diagram of the tube rod with hollow connecting hemisphere of the utility model welding ball node is as shown in Figs. 1-2 Small diameter pipe 2, hollow connecting hemisphere 3, cross ring stiffening rib plate 4, ring end plate 5, tube rod 6, first, the tube rod 6 is connected with the ring end plate 5 through butt weld, the cross ring stiffening rib plate 4 is connected with the hollow connecting hemisphere 3 through butt weld, then the hollow connecting hemisphere 3 is connected with the outer side of the ring end plate 5 and the small diameter pipe 2 through butt weld, this structure makes that only the other end of the small diameter pipe 2 needs to be welded with the welding ball 1 in the construction site, and the node connection can be completed, compared with the traditional welding ball node, since the diameter of the rod is reduced at both ends, the diameter of the welding ball can be reduced, and the steel quantity and self weight of the node are reduced.

[0025] The processing and installation steps of the utility model are as follows: the ring end plate 5 is processed in the factory according to engineering requirements; the cross ring stiffening rib plate 4 is processed in the factory according to engineering requirements; the hollow connecting hemisphere 3 is processed in the factory according to engineering requirements; the cross ring stiffening rib plate 4 is welded with the inner side of the hollow connecting hemisphere 3 in the factory, the ring end plate 5 is welded with the tube rod 6, then the hollow connecting hemisphere 3 is welded with the outer side of the ring end plate 5, finally the small diameter pipe 2 is welded with the outer side of the hollow connecting hemisphere 3; the components connected according to the above process in the factory are transported to the construction site, the small diameter pipe 2 is welded with the welding ball 1 in the construction site, and the installation is completed.

Claims

1. A reduced diameter welded spherical joint of a tubular member comprising a welded sphere (1), a small diameter tubular member (2), a hollow connecting hemisphere (3), a cross-shaped annular stiffening rib plate (4), a circular ring end plate (5) and a tubular member (6), characterized in that: The welding ball (1) is connected with the small diameter circular tube (2) through butt weld, the hollow connecting hemisphere (3) is connected with the cross ring shaped stiffening rib plate (4) and the circular ring end plate (5) through butt weld and is connected with the small diameter circular tube (2) through butt weld, and the circular tube rod (6) is connected with the circular ring end plate (5) through butt weld.

2. The reduced diameter welded spherical node of a tubular member with hollow connecting hemispheres according to claim 1, characterized in that: The cross section area of the small diameter circular tube (2) is equal to the cross section area of the circular tube rod (6).

3. The reduced diameter welded spherical node of a tubular member with hollow connecting hemispheres according to claim 1, characterized in that: The diameter of the hollow connecting hemisphere (3) is equal to the outer diameter of the circular tube rod (6).

4. The reduced diameter welded spherical node of tubular leg members with hollow connecting hemispheres of claim 1, wherein: The size of the central hole of the cross ring shaped stiffening rib plate (4) is between 1 / 2-1 / 3 of the outer diameter of the circular tube rod (6), and the outer diameter of the cross ring shaped stiffening rib plate (4) is equal to the inner diameter of the hollow connecting hemisphere (3).

5. The reduced diameter welded spherical node of tubular leg members with hollow connecting hemispheres of claim 1, wherein: The size of the central hole of the circular ring end plate (5) is between 1 / 2-1 / 3 of the outer diameter of the circular tube rod (6).

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