Structural joint for reinforcing welded ball net rack rod piece and construction method of structural joint

By using the gap clamping method of hinged plates and clamping plates at the connection nodes of the spherical grid and reserving weld components, the problem of insufficient pre-installation strength of rods and nodes is solved, the integrity of the welds is ensured, and the welding strength is improved.

CN120649558APending Publication Date: 2025-09-16JIANGSU FENGLING STEEL STRUCTURE ENGINEERING CO LTD +1
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Patent Information

Application Number
CN202511078267.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-01
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

The pre-installation strength of the rods and nodes at the connection nodes of the existing spherical grid is low, and the welds cannot remain intact after fine-tuning, resulting in insufficient welding strength.

Method used

The gap clamping method between the hinged plate and the clamping plate is adopted. The pre-installation strength of the rod and the spherical node is ensured by reserving the weld assembly, and the integrity of the weld is maintained when the rod is adjusted. The hinged plate is used to fit the bottom of the annular bevel to increase the welding connection surface.

Benefits of technology

The pre-installation strength of the rod and sphere node is improved, ensuring that the weld remains intact after fine-tuning of the rod, thereby enhancing the overall welding strength.

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Abstract

The invention relates to the field of ball net rack rod piece welding, in particular to a structural joint for reinforcing a welded ball net rack rod piece and a construction method of the structural joint, the structural joint comprises ball joint bodies, and rod pieces are arranged above the ball joint bodies and used for connecting all sets of ball joint bodies. The butt-joint rod is inserted into the butt-joint cylinder, the hinged plates are connected with gaps between the clamping plates in a clamped mode, at the moment, due to the counter-acting force of the springs, the positions of the hinged plates are firmly fixed, due to the fact that one set of hinged plates is attached to the bottom of the annular inclined groove, a weld joint is formed, and due to the fact that the multiple sets of hinged plates are arranged, the welding efficiency is greatly improved. When the installation position of the rod piece needs to be finely adjusted, one set of hinge plates can be attached to the bottom of the annular inclined groove all the time, so that the integrity of a welding seam is guaranteed, the connecting face during welding is enlarged, the firmness of the ball joint and the rod piece during pre-installation can be guaranteed through the mode, and the overall welding strength can also be guaranteed.
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Description

Technical Field

[0001] The invention relates to the field of ball grid frame rod welding, and in particular to a structural node for reinforcing a ball grid frame rod by welding and a construction method thereof. Background Art

[0002] A spherical truss is a spatial structure composed of multiple rods connected by nodes in a grid pattern. It offers advantages such as spatial force resistance, light weight, high rigidity, and excellent seismic resistance. It is widely used in roof structures for buildings such as gymnasiums, theaters, exhibition halls, waiting rooms, stadium awnings, and aircraft hangars. The connections between the rods are welded using nodes to ensure the overall strength of the spherical truss.

[0003] The Chinese invention patent application with announcement number CN214219989U is a flexible node connection structure for reinforcing grid rods. It includes an original grid, a newly added grid, an extension rod and a connecting part. The extension rod is composed of an original grid extension rod and a newly added grid extension rod. The original grid extension rod and the newly added grid extension rod extend outward from the original grid node ball and the newly added grid node ball respectively, and are connected and fixed by the connecting part at the extension end. The axes of the connected original grid extension rod and the newly added grid extension rod are in a straight line. This device has a simple structure. The original grid and the newly added grid are fixedly connected by the extension rod using the connecting part. It can not only improve the connectivity between the newly added grid and the original grid, thereby reinforcing the original grid, but also the bolt connection in the connecting part is easy to disassemble, making the application of the newly added grid more flexible.

[0004] The connection nodes of the existing spherical grids and the rods are generally connected by welding. However, in the existing construction process, the rods and the connection nodes need to be pre-installed to facilitate the subsequent welding work. However, the pre-installed connection strength between the existing rods and the nodes is relatively low, which is not convenient for the subsequent welding work. In addition, the existing welding simply welds the two together without reserving welds between the connections to increase the contact surface of the welding and increase the firmness of the connection. Even if welds are left when the rods and the connection nodes are prefabricated, it is impossible to ensure that there are no errors in each connection due to the overall construction of the grid. When errors occur, the butt joints of the rods and the connection nodes need to be adjusted, which makes it impossible to ensure the integrity and standardization of the welds after assembly, and thus the overall welding strength cannot be guaranteed.

[0005] Therefore, it is necessary to invent a structural node for welding ball grid rod reinforcement and a construction method thereof to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a structural node for reinforcing the rods of a welded ball grid and a construction method thereof. The pre-installation strength of the rods and the spherical nodes is ensured by clamping the gaps between the hinged plates and each group of clamping plates. No matter how the rods are adjusted, there will always be a group of hinged plates in contact with the bottom of the annular bevel, so that the welds always remain intact, so as to solve the problems in the prior art of low pre-installation strength of the rods and spherical nodes and the inability of the welds to remain intact after fine-tuning of the rods, thereby reducing the overall welding strength.

[0007] In order to achieve the above object, the present invention provides the following technical solution: a structural node for welding ball grid rod reinforcement, comprising a spherical node, a rod is provided above the spherical node, and the rod is used to connect each group of spherical nodes; A pre-installed fixing component is provided in the spherical node and is used for pre-installation between the rod and the spherical node; The weld reservation component is arranged between the spherical node and the rod member, and is used to reserve a welding gap between the spherical node and the rod member.

[0008] As a preferred solution of the present invention, the pre-installed fixing component includes docking holes, which are opened on the surface of the spherical node and are opened at different angles on the surface of the spherical node.

[0009] As a preferred solution of the present invention, a docking tube is fixedly connected to the surface of the spherical node, and the docking tube is connected to the corresponding docking hole, and a reinforcement frame is installed between each group of the docking tubes.

[0010] As a preferred solution of the present invention, a sliding cavity is provided at the bottom of the docking hole, a push rod is slidably connected in the sliding cavity, a push plate is installed above the push rod, and the push plate is arranged inside the docking tube.

[0011] As a preferred solution of the present invention, a spring is sleeved on the push rod, the upper part of the spring is in contact with the push plate, and the lower part of the spring is in contact with the docking hole.

[0012] As a preferred solution of the present invention, the weld pre-set assembly includes a clamping plate, which is sequentially installed downward on the inside of the docking sleeve, and four groups are installed in a circular array with the center of the docking sleeve as the axis.

[0013] As a preferred solution of the present invention, a docking rod is installed below the rod, and multiple sets of hinged plates are sequentially installed downward on the surface of the docking rod, and four sets are installed in a circular array with the center of the docking rod as the axis.

[0014] As a preferred solution of the present invention, the docking rod passes through the interior of the docking tube, and the lower part of the docking rod is in contact with the push plate, and the hinge plate is plugged into the gaps between the groups of clamping plates.

[0015] The construction method for a structural node for welding a spherical grid member to reinforce the structural node includes the structural node for welding a spherical grid member to reinforce the structural node as described above, and the specific processing steps are as follows: S1: Insert the rod into the docking tube in the corresponding direction according to the required installation position, and then stagger the hinge plate and the push plate; S2: After being inserted into the corresponding position, the rod is rotated to engage the gaps between the hinge plate and each group of push plates; S3: At this time, the subsequent hinged plate just forms a new space with the lowest surface of the annular bevel, thereby reserving the position of the weld.

[0016] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows: By inserting the docking rod into the docking tube and clamping the hinge plate with the gap between each group of clamping plates, the position of the hinge plate is firmly fixed due to the reaction force of the spring, and one group of hinge plates fits the bottom of the annular bevel groove to form a weld. Since there are multiple groups of hinge plates, when the installation position of the rod needs to be fine-tuned, one group of hinge plates will always fit the bottom of the annular bevel groove, thereby ensuring the integrity of the weld and increasing the connection surface during welding. In this way, the firmness of the spherical node and the rod during pre-installation can be guaranteed, and the overall welding strength can also be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the hinged plate and the card plate structure of the present invention; Figure 3 This is a schematic diagram of the planing structure of the butt joint sleeve of the present invention; Figure 4 It is a schematic diagram of the hinged plate layout structure of the present invention; Figure 5 For the present invention Figure 2 A in the middle is an enlarged structural diagram; Figure 6 For the present invention Figure 2 A in the middle is an enlarged structural diagram; Figure 7 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0019] Description of reference numerals: 001, spherical node; 101, rod; 002, pre-installed fixing component; 201, docking hole; 202, docking tube; 203, sliding cavity; 204, push rod; 205, spring; 206, push plate; 207, reinforcement frame; 003, weld reserved component; 301, clamping plate; 302, docking rod; 303, hinged plate; 304, annular bevel groove. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] The present invention provides Figure 1-7 The structural node for welding spherical grid rod reinforcement shown includes a spherical node 001, and a rod 101 is arranged above the spherical node 001. The rod 101 is used to connect each group of spherical nodes 001; The pre-installation fixing assembly 002 is provided in the spherical node 001 and is used for pre-installation between the rod 101 and the spherical node 001; The weld reservation component 003 is arranged between the spherical node 001 and the rod 101 and is used to reserve a welding gap between the spherical node 001 and the rod 101.

[0022] Furthermore, in the above structure, the pre-installed fixing component 002 includes a docking hole 201 , which is opened on the surface of the spherical node 001 and is opened at different angles on the surface of the spherical node 001 .

[0023] By opening the docking holes 201 at different angles, the spherical node 001 can be compatible with the installation requirements of the rods 101 at different angles.

[0024] Furthermore, in the above structure, a docking tube 202 is fixedly connected to the surface of the spherical node 001 , and the docking tube 202 is connected to the corresponding docking hole 201 , and a reinforcement frame 207 is installed between each group of docking tubes 202 .

[0025] The reinforcing frame 207 can make the connection between each group of docking tubes 202 more firmly.

[0026] Furthermore, in the above structure, a sliding cavity 203 is provided at the bottom of the docking hole 201 , a push rod 204 is slidably connected in the sliding cavity 203 , a push plate 206 is installed above the push rod 204 , and the push plate 206 is arranged inside the docking tube 202 .

[0027] Through the sliding connection between the sliding cavity 203 and the push rod 204 , the push plate 206 can slide up and down inside the docking sleeve 202 .

[0028] Furthermore, in the above structure, a spring 205 is sleeved on the push rod 204 , the upper portion of the spring 205 is in contact with the push plate 206 , and the lower portion of the spring 205 is in contact with the docking hole 201 .

[0029] The position of the push plate 206 in the docking sleeve 202 can be maintained by the spring 205 .

[0030] Furthermore, in the above structure, the weld reservation assembly 003 includes a clamping plate 301, which is sequentially installed downward on the inside of the docking tube 202, and four groups are installed in a circular array with the center of the docking tube 202 as the axis.

[0031] Furthermore, in the above structure, a docking rod 302 is installed below the rod 101, and multiple sets of hinge plates 303 are sequentially installed downward on the surface of the docking rod 302, and four sets are installed in a circular array with the center of the docking rod 302 as the axis.

[0032] Furthermore, in the above structure, the docking rod 302 passes through the interior of the docking tube 202 , and the lower portion of the docking rod 302 is in contact with the push plate 206 , and the hinge plate 303 is plugged into the gaps between the groups of clamping plates 301 .

[0033] The docking rod 302 and the docking tube 202 are connected by inserting the gaps between the hinged plate 303 and each group of push plates 206, and the upper hinged plate 303 fits with the bottom of the annular inclined groove 304 to form a gap, which is a gap reserved for welding.

[0034] The construction method for the structural node for welding the spherical grid rod members to reinforce the structural node includes the above structural node for welding the spherical grid rod members to reinforce the structural node, and the specific processing steps are as follows: S1: Insert the rod 101 into the docking sleeve 202 in the corresponding direction according to the required installation position, and then interlace the hinge plate 303 and the push plate 206; S2: After being inserted into the corresponding position, the rod 101 is rotated to engage the gaps between the hinge plate 303 and each group of push plates 206; S3: At this time, the subsequent hinged plate 303 forms a new space with the lowest surface of the annular bevel groove 304, thereby reserving a position for the weld.

[0035] like Figure 1-7As shown, by inserting the docking rod 302 into the docking cylinder 202, the hinge plate 303 and the card plate 301 are in a staggered position. When inserted into the corresponding position, the docking rod 302 is rotated to drive the hinge plate 303 to be inserted into the gap between each group of card plates 301. At this time, due to the entry of the docking rod 302, the push plate 206 below is squeezed, so that the push plate 206 squeezes the spring 205, so that the push plate 206 forms an upward reaction force, thereby firmly fixing the hinge plate 303 and each group of card plates 301. The upper set of hinged plates 303 fits in with the bottom of the annular bevel groove 304, thereby forming a gap. Moreover, due to the multiple sets of hinged plates 303, when the rod 101 is adjusted, one of the multiple sets of hinged plates 303 always fits in with the bottom of the annular bevel groove 304, and there will be no incomplete welds. In this way, the firmness of the spherical node 001 and the rod 101 during pre-installation can be ensured, and it can also be ensured that the weld will not change when the installation position of the rod 101 is fine-tuned, thereby ensuring the overall welding strength.

[0036] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A structural node for welding ball grid rod reinforcement, comprising a ball node (001), characterized in that: A rod (101) is provided above the spherical nodes (001), and the rod (101) is used to connect each group of spherical nodes (001); A pre-installation fixing assembly (002) is arranged in the spherical node (001) and is used for pre-installation between the rod (101) and the spherical node (001); The weld reservation component (003) is arranged between the spherical node (001) and the rod (101) and is used to reserve a weld gap between the spherical node (001) and the rod (101).

2. The structural node for welding ball grid rod reinforcement according to claim 1, characterized in that: The pre-installed fixing component (002) comprises a docking hole (201), wherein the docking hole (201) is provided on the surface of the spherical node (001) and is provided at different angles on the surface of the spherical node (001).

3. The structural node for welding ball grid rod reinforcement according to claim 2, characterized in that: A docking tube (202) is fixedly connected to the surface of the spherical node (001), and the docking tube (202) is connected to the corresponding docking hole (201). A reinforcement frame (207) is installed between each group of the docking tubes (202).

4. The structural node for welding ball grid rod reinforcement according to claim 3, characterized in that: A sliding cavity (203) is provided at the bottom of the docking hole (201), a push rod (204) is slidably connected in the sliding cavity (203), a push plate (206) is installed above the push rod (204), and the push plate (206) is arranged inside the docking tube (202).

5. The structural node for welding ball grid rod reinforcement according to claim 4, characterized in that: The push rod (204) is sleeved with a spring (205), the upper portion of the spring (205) is in contact with the push plate (206), and the lower portion of the spring (205) is in contact with the docking hole (201).

6. The structural node for welding ball grid rod reinforcement according to claim 1, characterized in that: The weld seam pre-set assembly (003) comprises a clamping plate (301), which is sequentially mounted downwardly on the inside of the docking sleeve (202), and four groups of the clamping plates (301) are mounted in a circular array with the center of the docking sleeve (202) as the axis.

7. The structural node for welding ball grid rod reinforcement according to claim 1, characterized in that: A docking rod (302) is installed below the rod (101), and a plurality of hinge plates (303) are sequentially installed downward on the surface of the docking rod (302), with four sets of hinge plates installed in a circular array with the center of the docking rod (302) as the axis.

8. The structural node for welding ball grid rod reinforcement according to claim 7, characterized in that: The docking rod (302) passes through the interior of the docking tube (202), and the lower portion of the docking rod (302) is in contact with the push plate (206), and the hinge plate (303) is plugged into the gaps between the groups of clamping plates (301).

9. A construction method for a structural node for welding a spherical grid member to reinforce a structure, comprising the structural node for welding a spherical grid member to reinforce a structure according to any one of claims 1 to 8, characterized in that: The processing steps are as follows: S1: inserting the rod (101) into the docking sleeve (202) in the corresponding direction according to the required installation position, and then staggering the hinge plate (303) and the push plate (206); S2: After being inserted into the corresponding position, the rod (101) is rotated to engage the gaps between the hinge plate (303) and each group of push plates (206); S3: At this time, the subsequent hinged plate (303) and the lowest surface of the annular bevel groove (304) just form a new space, thereby reserving the position of the weld.

Citation Information

Patent Citations

  • Flexible joint connecting structure for reinforcing net rack rod piece

    CN214219989U