A support structure for grid with reduced weld seams

Abstract

The present invention relates to the technical field of grid structure, and in particular to a support structure for a grid with reduced welds, comprising a bolt ball, a support plate, a sleeve and a hexagon socket bolt, the bottom end of the sleeve abuts against the bolt ball, the top end of the sleeve is provided with a support groove, the center of the sleeve is provided with a vertical channel, the support plate abuts against the support groove, and the hexagon socket bolt passes through the support plate and the vertical channel and is threadedly connected to the bolt ball; the present invention facilitates the positioning, installation and connection between various components, and the structure is stable after installation. When the support plate and the sleeve are subjected to external force, it is difficult to affect the stability of the connection between the hexagon socket bolt and the support plate, the sleeve and the bolt ball, and the stability of the support no longer depends on the quality of welding, but at the same time the presence of the weld enhances the stability of the support structure.

Description

Technical Field

[0001] The invention relates to the technical field of grid structures, and in particular to a grid support structure capable of reducing welds. Background Art

[0002] The grid structure is widely used in large stadiums, exhibition centers, theaters, shopping malls, airport terminals, waiting halls, factory workshops, warehouses, TV towers, etc. due to its novel structure, reasonable force, light weight, and low steel consumption. The current grid structure has a relatively large span, ranging from 40 meters for the smallest to 130 meters for the largest. The deflection of the grid is relatively large, and the stress state at different positions is different. The deflection changes very unevenly, and the range of variation is large. An equipment platform is set on the grid structure. Since there are running equipment on the platform, the operation of the equipment has strict requirements on the elevation of the platform. Existing support technologies, such as Figure 1 The screw is first welded to the sleeve 3 to form a first weld. After the screw is threadedly connected to the bolt ball 1, the connection between the sleeve 3 and the bolt ball 1 is welded to form a second weld. The connection between the support plate 2 and the sleeve 3 is welded to form a third weld. Due to the existence of three welds, the quality of welding directly affects the stability of the support. When the support plate 2 and the sleeve 3 are subjected to external forces, they are likely to have a negative impact on the connection between the screw and the bolt ball 1. Summary of the invention

[0003] In view of the shortcomings of the above-mentioned prior art, the present invention provides a support structure for a grid with reduced welds, which is convenient for positioning, installation and connection between various components. The structure is stable after installation, and when the support plate and the sleeve are subjected to external force, it is difficult to affect the stability of the connection between the hexagon socket bolt and the support plate, the sleeve and the bolt ball. The stability of the support no longer depends on the quality of welding, but at the same time, the presence of the weld enhances the stability of the support structure.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A support structure for a grid frame that reduces welds, comprising a bolt ball, a support plate, a sleeve and a hexagon socket bolt, wherein the bottom end of the sleeve abuts against the bolt ball, the top end of the sleeve is provided with a support groove, the center of the sleeve is provided with a vertical channel, the support plate abuts against the support groove, and the hexagon socket bolt passes through the support plate and the vertical channel and is threadedly connected to the bolt ball.

[0006] Furthermore, a symmetrical reinforcing rib is provided at the top end of the sleeve, and the top end of the reinforcing rib abuts against the supporting plate.

[0007] Furthermore, the vertical cross-section of the support groove is in an inverted trapezoidal shape, and the height of the connecting head of the hexagon socket bolt is equal to the depth of the support groove.

[0008] Furthermore, the bottom end of the sleeve is provided with an inner cavity, a return spring and a positioning block, the top end of the return spring is fixedly connected to the inner cavity, the bottom end of the return spring is fixedly connected to the positioning block, and the bolt ball is provided with a socket that matches the positioning block.

[0009] Furthermore, the number of the inner cavity, the return spring and the positioning block is 2 and they are symmetrically arranged.

[0010] Furthermore, the hexagon socket bolt includes a threaded portion and a straight rod portion, and a nominal diameter of the threaded portion is smaller than a horizontal cross-sectional diameter of the straight rod portion.

[0011] Furthermore, the vertical channel is provided with an internal thread channel matched with the threaded portion and a straight pipe channel matched with the straight rod portion.

[0012] Furthermore, the connecting head is provided with a vertical edge and a beveled edge matching with the supporting groove.

[0013] Due to the adoption of the above technical solution, the beneficial effects of the present invention compared with the prior art are as follows:

[0014] 1) The present invention first determines the relative position of the sleeve and the bolt ball, and then determines the relative position of the support plate and the sleeve. The hexagon socket bolt passes through the support plate and the straight pipe channel in sequence and then is threadedly connected with the internal thread channel and the bolt ball. The present invention facilitates the positioning, installation and connection between various components. After installation, the structure is stable. When the support plate and the sleeve are subjected to external force, it is difficult to affect the stability of the connection between the hexagon socket bolt and the support plate, the sleeve and the bolt ball.

[0015] 2) The present invention performs one welding in the gap between the vertical edge and the support groove, and there is a weld. The stability of the support no longer depends on the quality of the welding, but at the same time, the existence of this weld enhances the stability of the support structure;

[0016] 3) The present invention moves the sleeve around the screw hole of the bolt ball. When the positioning block is aligned with the insertion hole, the positioning block pops out into the insertion hole under the action of the reset spring, thereby quickly determining the relative position of the sleeve and the bolt ball. The vertical section of the support groove is in an inverted trapezoidal shape, which is convenient for determining the relative installation position of the support plate and the sleeve. The reinforcing rib plate conflicts with the support plate, and the supporting capacity of the support plate is enhanced by the reinforcing rib plate.

[0017] 4) The nominal diameter of the threaded portion of the present invention is smaller than the horizontal cross-sectional diameter of the straight rod portion, which not only facilitates the threaded portion to pass through the straight pipe channel and be threadedly connected with the internal threaded channel and the screw hole of the bolt ball, but also reduces the gap between the straight rod portion and the straight pipe channel, thereby enhancing the stability of the connection between the hexagon socket bolt and the support plate and sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments protected by the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural schematic diagram of a support under existing technical conditions;

[0020] Figure 2 It is a schematic diagram of the structure of the support of the present invention;

[0021] Figure 3 is a schematic diagram of the structure of the sleeve;

[0022] Figure 4 It is a structural schematic diagram of a hexagon socket bolt;

[0023] Figure 5 It is a structural schematic diagram of the pallet;

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1-bolt ball, 2-support plate, 3-sleeve, 4-hexagon socket bolt, 5-support groove, 6-vertical channel, 7-reinforcement rib, 8-connector, 9-inner cavity, 10-reset spring, 11-positioning block, 12-socket, 13-threaded part, 14-straight rod part, 15-inner thread channel, 16-straight pipe channel, 17-vertical edge, 18-bevel edge. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-5 As shown, a support structure for a grid with reduced welds includes a bolt ball 1, a support plate 2, a sleeve 3 and a hexagon socket bolt 4, the bottom end of the sleeve 3 abuts against the bolt ball 1, the top end of the sleeve 3 is provided with a support groove 5, the center of the sleeve 3 is provided with a vertical channel 6, the support plate 2 abuts against the support groove 5, and the hexagon socket bolt 4 passes through the support plate 2 and the vertical channel 6 and is threadedly connected to the bolt ball 1.

[0028] During installation, first make the bottom end of the sleeve 3 contact with the periphery of the screw hole of the bolt ball 1, then make the bottom surface at the center of the support plate 2 contact with the support groove 5 at the top of the sleeve 3, and the hexagon socket bolt 4 passes through the support plate 2 and the vertical channel 6 in turn, and tighten the hexagon socket bolt 4 with an L-shaped wrench until the screw rod of the hexagon socket bolt 4 is completely connected with the screw hole of the bolt ball 1.

[0029] The top of the sleeve 3 is provided with symmetrical reinforcing ribs 7, and the top of the reinforcing ribs 7 abuts against the support plate 2. The reinforcing ribs 7 abut against the support plate 2, and the supporting capacity of the support plate 2 is enhanced by the reinforcing ribs 7.

[0030] Among them, the vertical cross-section of the support groove 5 is an inverted trapezoidal shape, which is convenient for determining the relative installation position of the support plate 2 and the sleeve 3. The height of the connecting head 8 of the hexagon socket bolt 4 is equal to the depth of the support groove 5. After the support is installed, the top surface of the connecting head 8 is flush with the top surface of the support plate 2.

[0031] The bottom end of the sleeve 3 is provided with an inner cavity 9, a return spring 10 and a positioning block 11, the top end of the return spring 10 is fixedly connected to the inner cavity 9, the bottom end of the return spring 10 is fixedly connected to the positioning block 11, and the bolt ball 1 is provided with a socket 12 that matches the positioning block 11. The sleeve 3 is moved around the screw hole of the bolt ball 1, and when the positioning block 11 is aligned with the socket 12, the positioning block 11 pops out into the socket 12 under the action of the return spring 10, thereby quickly determining the relative position of the sleeve 3 and the bolt ball 1.

[0032] The number of the inner cavity 9, the return spring 10 and the positioning block 11 is 2 and they are symmetrically arranged.

[0033] The hexagon socket bolt 4 includes a threaded portion 13 and a straight shank portion 14 , and the nominal diameter of the threaded portion 13 is smaller than the horizontal cross-sectional diameter of the straight shank portion 14 .

[0034] The vertical channel 6 is provided with an internal threaded channel 15 matched with the threaded portion 13 and a straight pipe channel 16 matched with the straight rod portion 14. The nominal diameter of the threaded portion 13 is smaller than the horizontal cross-sectional diameter of the straight rod portion 14, which not only facilitates the threaded portion 13 to pass through the straight pipe channel 16 and be threadedly connected with the internal threaded channel 15 and the screw hole of the bolt ball 1, but also reduces the gap between the straight rod portion 14 and the straight pipe channel 16, and enhances the stability of the connection between the hexagon socket bolt 4 and the support plate 2 and the sleeve 3.

[0035] The connector 8 is provided with a vertical edge 17 and a bevel 18 matched with the support groove 5. The bevel 18 fits the support groove 5, and the gap between the vertical edge 17 and the support groove 5 facilitates welding between the connector 8 and the support groove 5 after the hexagon socket bolt 4 is screwed, thereby improving the stability of the connection between the hexagon socket bolt 4 and the support plate 2, the sleeve 3, and the bolt ball 1.

[0036] Example

[0037] During installation of the present invention, the bottom end of the sleeve 3 is first moved against the periphery of the screw hole of the bolt ball 1 until the positioning block 11 pops out and enters the insertion hole 12 to determine the relative positions of the sleeve 3 and the bolt ball 1, and then the bottom surface at the center of the support plate 2 is made to contact the support groove 5 at the top end of the sleeve 3, and the threaded portion 13 of the hexagon socket bolt 4 passes through the support plate 2 and the straight pipe channel 16 in turn, and is threadedly connected with the internal thread channel 15 and the screw hole of the bolt ball 1 in turn until the top surface of the connector 8 is flush with the top surface of the support plate 2, the bevel 18 of the connector 8 is fitted with the support groove 5, and welding is performed once in the gap between the vertical edge 17 and the support groove 5.

[0038] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A support structure for a grid frame with reduced weld seams, comprising a bolt ball (1), a support plate (2), a sleeve (3) and a hexagon socket bolt (4), characterized in that: The bottom end of the sleeve (3) abuts against the bolt ball (1), the top end of the sleeve (3) is provided with a support groove (5), the center of the sleeve (3) is provided with a vertical channel (6), the support plate (2) abuts against the support groove (5), and the hexagon socket bolt (4) passes through the support plate (2) and the vertical channel (6) and is threadedly connected to the bolt ball (1); The bottom end of the sleeve (3) is provided with an inner cavity (9), a return spring (10) and a positioning block (11); the top end of the return spring (10) is fixedly connected to the inner cavity (9); the bottom end of the return spring (10) is fixedly connected to the positioning block (11); and the bolt ball (1) is provided with a socket (12) that matches the positioning block (11); The number of the inner cavity (9), the return spring (10) and the positioning block (11) is 2 and they are symmetrically arranged; The vertical cross-section of the support groove (5) is in an inverted trapezoidal shape, and the height of the connecting head (8) of the hexagon socket bolt (4) is equal to the depth of the support groove (5); The connecting head (8) is provided with a vertical edge (17) and a bevel edge (18) matching with the supporting groove (5); The top surface of the connecting head (8) is flush with the top surface of the supporting plate (2), the bevel edge (18) of the connecting head (8) is in contact with the supporting groove (5), and a welding is performed in the gap between the vertical edge (17) and the supporting groove (5).

2. The support structure for a grid with reduced welds according to claim 1, characterized in that: A symmetrical reinforcing rib (7) is provided at the top end of the sleeve (3), and the top end of the reinforcing rib (7) abuts against the support plate (2).

3. The support structure for a grid with reduced welds according to claim 1, characterized in that: The hexagon socket bolt (4) comprises a threaded portion (13) and a straight rod portion (14); the nominal diameter of the threaded portion (13) is smaller than the horizontal cross-sectional diameter of the straight rod portion (14).

4. The support structure for a grid with reduced welds according to claim 3, characterized in that: The vertical channel (6) is provided with an internal thread channel (15) matching with the threaded portion (13) and a straight pipe channel (16) matching with the straight rod portion (14).

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