Mounting tool for bottom spherical steel structure truss

Abstract

The utility model relates to a mounting tool for a steel structure truss with a spherical bottom. The mounting tool comprises a bottom plate and a connecting piece, the connecting piece comprises a connecting rod A, a connecting rod B, a connecting rod C, a hook plate and three node connecting pieces; the middle of the connecting rod A, the tail end of the connecting rod B and the tail end of the connecting rod C are mutually hinged; the three node connecting pieces are respectively mounted at the head end of the connecting rod A, the head end of the connecting rod B and the head end of the connecting rod C; the node connecting piece comprises a U-shaped clamp and a sleeve matched with the node of the spherical structure. The inclination angle of the connecting piece is adjustable, so that the hinging axes of the connecting rod A, the connecting rod B and the connecting rod C face the sphere center position of the spherical structure; the nodes are respectively sleeved in the three sleeves to enable the nodes to face the center of the sphere, then the three nodes are connected through the rod piece to form an isosceles triangle unit, and the isosceles triangle unit is also located at a correct position and at a correct inclination angle. The labor intensity of workers can be reduced, and the construction efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary installation of spherical steel structure trusses, and in particular to an installation tool for a bottom spherical steel structure truss. Background Technology

[0002] Spherical steel trusses are widely used in stadiums, exhibition halls, conference centers, and other buildings due to their simple structure and aesthetically pleasing appearance. Existing spherical structures are implemented using truss structures composed of members and nodes, and are classified according to grid pattern as geodesic, rib-ring, linked square, Schweidler, and Kärwitt shapes; the linked square is the most widely used spherical structure. This spherical structure is not a complete sphere; its part in contact with the ground is a ring for stable support. The ground-contact portion of the linked square spherical structure requires precise installation, including not only positional accuracy but also the angle of inclination relative to the ground. The linked square spherical structure is composed of triangles and quadrilaterals; the basic unit of the ground-contact portion is an isosceles triangular element; several isosceles triangular elements form a ring; and each isosceles triangular element, including nodes and members, tilts outward at a certain angle; the members tilt inward relatively. In the construction of existing linked square spherical structures, the tilt angle of the isosceles triangular elements requires repeated manual calibration, resulting in high labor intensity and low construction efficiency. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned problems and provide an installation tool for a bottom spherical steel structure truss.

[0004] The technical solution of this utility model is as follows: A bottom spherical steel structure truss installation tool includes a base plate and connectors; the base plate is a ground-connecting component, providing stable support for the installation tool; the connectors are responsible for connecting isosceles triangular units; the connectors include connecting rod A, connecting rod B, connecting rod C, a hook plate, and three node connectors; the middle part of connecting rod A, the tail end of connecting rod B, and the tail end of connecting rod C are hinged to each other, allowing connecting rods A, B, and C to rotate relative to each other; the three node connectors are respectively installed at the beginning of connecting rod A, the beginning of connecting rod B, and the beginning of connecting rod C, for connecting the nodes of the spherical structure; the node connectors include U-shaped clips and connectors to the spherical surface. The structure includes matching sleeves, hinge screws, locking bolts, and fixing screws at its nodes; hinge screws symmetrically penetrate both sides of the U-shaped clip; the hinge screws penetrate the U-shaped clip to provide a rotating pair; the ends of the hinge screws are threaded to the side wall of the sleeve, making the sleeve and hinge screws an integral unit; an adjustment plate extends outward from the side of the sleeve, parallel to the U-shaped clip; the adjustment plate has several adjustment holes arranged around the circumference of the hinge screws; each adjustment hole on the adjustment plate corresponds to a sleeve deflection angle; the locking bolt passes through the U-shaped clip and the adjustment hole to lock the sleeve after deflection; a crossbar is provided at the tail end of connecting rod A; the crossbar is perpendicularly connected to connecting rod A; both ends of the crossbar are provided with a connection to connecting rod A. The transverse elongated hole is described; the U-shaped clip is connected to the end of the crossbar by a fixing screw; the fixing screw passes through the transverse elongated hole; connecting rod A is equivalent to the perpendicular bisector of the crossbar; connecting rods B and C are inclined at equal angles relative to connecting rod A; the node connectors installed on connecting rod A are also located on the perpendicular bisector; the three node connectors are also located at the three vertices of an isosceles triangle, and the installed nodes meet the positional requirements of nodes in an isosceles triangle element; the upper end of the hook plate is fixedly connected to connecting rod A, and the lower end is fitted with a hinge shaft; the base plate extends upward to form a side plate; the hinge shaft passes through the side plate; the lower end of the hook plate forms a rotating pair with the side plate through the hinge shaft, causing the connectors to tilt relative to the base plate. The hinge axes of connecting rods A, B, and C are oriented towards the center of the spherical structure. The lower end of the hook plate has adjustment holes distributed circumferentially around the hinge axis. A locking shaft is also connected through the side plate, passing through the adjustment holes. The tilt angle of the sleeves on each node connector is adjusted so that the axis of each sleeve also faces the center of the sphere. The positions of the three nodes also conform to the positions of the three nodes of an isosceles triangle. Thus, the nodes are fitted into the three sleeves, oriented towards the center of the sphere, and then the three nodes are connected using rods to form an isosceles triangular unit, which is also in the correct position and at the correct tilt angle.

[0005] Preferably, the locking shaft is made of a fixing bolt; the threaded end of the locking bolt is threaded with a fixing nut; the threaded engagement between the locking bolt and the fixing nut prevents the locking bolt from easily falling off.

[0006] Preferably, there are two side plates, symmetrically arranged on both sides of the hook plate; the locking shaft passes through the two side plates, so that the locking shaft is in a horizontal state, ensuring the locking effect on the hook plate.

[0007] Preferably, the first ends of connecting rod A, connecting rod B, and connecting rod C are all provided with coaxial cavities A and fastening nails A that penetrate the cavities A; the node connector also includes a telescopic shaft that matches the cavity A; the outer end of the telescopic shaft is connected to the midpoint of the U-shaped clip; the telescopic shaft is inserted into the cavity A and locked by the fastening nails A; by the cooperation between the telescopic shaft and the cavity A, and the mutual hinge relationship between connecting rod A, connecting rod B, and connecting rod C, the distance between the three nodes is changed, so that the installation tool can adapt to the installation of isosceles triangular units of different sizes and shapes, thereby increasing the applicability of the installation tool.

[0008] Furthermore, the transverse cross-sections of the telescopic shaft and the cavity A are both matching polygons; the cooperation between the telescopic shaft and the cavity A also restricts the relative rotation between the telescopic shaft and the cavity A, ensuring the dimensional accuracy of the node connectors.

[0009] Furthermore, the tail end of connecting rod A is provided with a coaxial cavity B, a telescopic rod B inserted into cavity B, and a fastening pin B; telescopic rod B is locked to the tail end of connecting rod A by fastening pin B; a crossbar is set on telescopic rod B; through the cooperation of cavity B and telescopic rod B, it can adapt to changes in node position.

[0010] Preferably, the bottom spherical steel truss installation tool further includes a locking nut; a circular ring A parallel to the connecting rod A is provided in the middle of the connecting rod A; a circular ring B parallel to the connecting rod B is fixedly connected to the first end of the connecting rod B; a circular ring C parallel to the connecting rod C is fixedly connected to the first end of the connecting rod C; a central shaft is coaxially fixedly connected to the center of the circular ring C; the central shaft passes through the circular ring B and the circular ring A in sequence and is threadedly connected to the locking nut; the central shaft cooperates with the circular ring A and the circular ring B to realize the hinge connection between the connecting rod A, the connecting rod B, and the connecting rod C.

[0011] Furthermore, a coaxial fitting ring is provided at the center of ring B; the outer wall of the fitting ring is connected to the inner wall of ring A; the inner wall of the fitting ring is connected to the outer wall of the central shaft; the fitting ring isolates the central shaft from ring A, preventing the rotation of connecting rod C from affecting connecting rod A.

[0012] Furthermore, the height of the fitting ring is comparable to the thickness of ring A, which allows the locking nut to fully limit the axial movement of ring A, ensuring that ring A, ring B, and ring C are tightly fitted together, and that connecting rod A, connecting rod B, and connecting rod C are all in the same plane.

[0013] Preferably, the base plate is provided with expansion bolt mounting holes for installing expansion bolts to ensure a stable connection between the base plate and the ground.

[0014] Furthermore, there are four expansion bolt mounting holes, symmetrically arranged on both sides of the side plate, to ensure a uniform and stable connection between the base plate and the ground.

[0015] The beneficial effects of this utility model are as follows: The bottom spherical steel structure truss installation tool of this utility model has the following advantages:

[0016] (1) The inclination angle of the connectors in this utility model is adjustable, so that the hinge axes of connecting rod A, connecting rod B, and connecting rod C are oriented toward the center of the spherical structure; the nodes are respectively fitted into the three sleeves, so that they are oriented toward the center of the sphere, and then the three nodes are connected by rods to form an isosceles triangle unit, and the isosceles triangle unit is also in the correct position and at the correct inclination angle. This utility model can reduce the labor intensity of workers and improve construction efficiency;

[0017] (2) The telescopic shaft of this utility model cooperates with the cavity A, and the hinges of connecting rod A, connecting rod B and connecting rod C change the distance between the three nodes, so that the installation tool can adapt to the installation of isosceles triangle units of different sizes and shapes, thereby increasing the applicability of the installation tool. Attached Figure Description

[0018] Figure 1 This utility model is a three-dimensional installation tool for a bottom spherical steel structure truss. Figure 1 ;

[0019] Figure 2 This utility model is a three-dimensional installation tool for a bottom spherical steel structure truss. Figure 2 ;

[0020] Figure 3 yes Figure 1 Rear view;

[0021] Figure 4 yes Figure 3 AA section view;

[0022] Figure 5 yes Figure 3 BB cross-sectional view;

[0023] Figure 6 yes Figure 4 CC section view;

[0024] Figure 7 This is a 3D view of connector A;

[0025] Figure 8 This is a schematic diagram illustrating the working principle of the bottom spherical steel structure truss installation tool of this utility model;

[0026] In the diagram: 00. Isosceles triangular element, 01. Node, 02. Rod.

[0027] 1. Base plate, 11. Side plate, 111. Locking shaft, 112. Fixing nut, 12. Expansion bolt mounting hole, 2. Connecting parts, 21. Connecting rod A, 211. Crossbar, 2111. Horizontal elongated hole, 212. Cavity B, 213. Telescopic rod B, 214. Fastening nail B, 215. Ring A, 22. Connecting rod B, 221. Ring B, 2211. Fitting ring, 23. Connecting rod C, 2 31. Circular ring C, 2311. Central shaft, 24. Hook plate, 241. Hinge shaft, 242. Adjusting hole, 25. Node connector, 251. U-shaped clip, 252. Sleeve, 2521. Adjusting plate, 25211. Adjusting hole, 253. Hinge screw, 254. Locking bolt, 255. Fixing screw, 256. Telescopic shaft, 26. Cavity A, 27. Fastening nail A, 3. Locking nut. Detailed Implementation

[0028] Example 1: See Figure 1-8An installation tool for a bottom spherical steel truss includes a base plate 1 and connectors 2. The base plate 1 is a ground-connecting component that provides stable support for the installation tool. Connectors 2 are responsible for connecting isosceles triangular elements 00. Connectors 2 include connecting rod A 21, connecting rod B 22, connecting rod C 23, hook plate 24, and three node connectors 25. The middle part of connecting rod A 21, the tail end of connecting rod B 22, and the tail end of connecting rod C 23 are hinged to each other, allowing connecting rods A 21, B 22, and C 23 to rotate relative to each other. The three node connectors 25 are respectively installed at the beginning of connecting rod A 21, the beginning of connecting rod B 22, and the beginning of connecting rod C 23, for connecting nodes 01 of the spherical structure. The node connectors 25 include U-shaped clips 251 and are connected to the spherical structure. The structure consists of a matching sleeve 252, hinge screw 253, locking bolt 254, and fixing screw 255 at node 01; hinge screws 253 symmetrically penetrate both sides of the U-shaped clip 251; the hinge screws 253 penetrate the U-shaped clip 251 to provide a rotating pair; the ends of the hinge screws 253 are threaded to the side wall of the sleeve 252, making the sleeve 252 and the hinge screws 253 an integral unit; an adjusting plate 2521 extends outward from the side of the sleeve 252, parallel to the U-shaped clip 251; the adjusting plate 2521 has several adjusting holes 25211 arranged around the circumference of the hinge screws 253; each adjusting hole 25211 on the adjusting plate 2521 corresponds to the sleeve 252 deflecting at an angle; the locking bolt 254 penetrates the U-shaped clip 251 and the adjusting holes 25211, thus... The sleeve 252 is now locked after deflection; a crossbar 211 is provided at the tail end of the connecting rod A 21; the crossbar 211 is perpendicularly connected to the connecting rod A 21; both ends of the crossbar 211 are provided with transverse elongated holes 2111 symmetrical about the connecting rod A 21; the U-shaped clip 251 is connected to the end of the crossbar 211 by a fixing screw 255; the fixing screw 255 passes through the transverse elongated hole 2111; the connecting rod A 21 is equivalent to the perpendicular bisector of the crossbar 211; the angles of inclination of the connecting rod B 22 and the connecting rod C 23 relative to the connecting rod A 21 are equal; the node connector 25 installed on the connecting rod A 21 is also located on the perpendicular bisector; the three node connectors 25 are also located at the three vertices of the isosceles triangle, and the node 01 installed thereon conforms to the node 01 in the isosceles triangle element 00. Positional requirements: The upper end of the hook plate 24 is fixedly connected to the connecting rod A 21, and the lower end is through which a hinge shaft 241 is installed; the seat plate extends upward to form a side plate 11; the hinge shaft 241 passes through the side plate 11; the lower end of the hook plate 24 forms a rotating pair with the side plate 11 through the hinge shaft 241, so that the connecting piece 2 is tilted relative to the base plate 1; the hinge shafts 241 of the connecting rod A 21, connecting rod B 22, and connecting rod C 23 face the center of the spherical structure; the lower end of the hook plate 24 is provided with adjustment holes 242 distributed circumferentially around the hinge shaft 241; the side plate 11 is also through which a locking shaft 111 is connected; the locking shaft 111 passes through the adjustment holes 242; the tilt angle of the sleeves 252 on each node connecting piece 25 is adjusted so that the axis of each sleeve 252 also faces the center of the sphere;The positions of the three nodes 01 also conform to the positions of the three nodes 01 of an isosceles triangle; thus, nodes 01 are respectively fitted into the three sleeves 252, oriented towards the center of the sphere, and then the three nodes 01 are connected by the rod 02 to form an isosceles triangular unit 00, which is also in the correct position and at the correct tilt angle.

[0029] Compared with the prior art, the tilt angle of the connector 2 in this invention is adjustable, allowing the hinge axis 241 of connecting rods A 21, B 22, and C 23 to face the center of the spherical structure. Nodes 01 are respectively fitted into the three sleeves 252, oriented towards the center of the sphere, and then the three nodes 01 are connected by rods 02 to form an isosceles triangular unit 00, which is also in the correct position and tilt angle. This invention can reduce the labor intensity of workers and improve construction efficiency.

[0030] The locking shaft 111 is made of a fixing bolt; the threaded end of the locking bolt 254 is threaded with a fixing nut 112; the threaded engagement between the locking bolt 254 and the fixing nut 112 prevents the locking bolt 254 from easily falling off.

[0031] There are two side plates 11, symmetrically arranged on both sides of the hook plate 24; the locking shaft 111 passes through the two side plates 11, so that the locking shaft 111 is in a horizontal state, ensuring the locking effect on the hook plate 24.

[0032] The first ends of connecting rod A 21, connecting rod B 22, and connecting rod C 23 are all provided with coaxial cavities A 26 and fastening nails A 27 penetrating cavities A 26; the node connector 25 also includes a telescopic shaft 256 that matches the cavity A 26; the outer end of the telescopic shaft 256 is connected to the midpoint of the U-shaped clip 251; the telescopic shaft 256 is inserted into the cavity A 26 and locked by the fastening nails A 27; by the cooperation between the telescopic shaft 256 and the cavity A 26, and the mutual hinge relationship between connecting rod A 21, connecting rod B 22, and connecting rod C 23, the distance between the three nodes 01 is changed, so that the installation tool can adapt to the installation of isosceles triangular units 00 of different sizes and shapes, increasing the applicability of the installation tool.

[0033] The transverse cross-sections of the telescopic shaft 256 and the cavity A 26 are both matching polygons; the fit between the telescopic shaft 256 and the cavity A 26 also restricts the relative rotation between them, ensuring the dimensional accuracy of the node connector 25. In this embodiment, the transverse cross-sections of the telescopic shaft 256 and the cavity A 26 are both rectangles.

[0034] The tail end of the connecting rod A 21 is provided with a coaxial cavity B 212, a telescopic rod B 213 inserted into the cavity B 212, and a fastening nail B 214; the telescopic rod B 213 is locked to the tail end of the connecting rod A 21 by the fastening nail B 214; the crossbar 211 is set on the telescopic rod B 213; through the cooperation of the cavity B 212 and the telescopic rod B 213, it can adapt to the change of the position of node 01.

[0035] The bottom spherical steel truss installation tool also includes a locking nut 3; a circular ring A 215 parallel to the connecting rod A 21 is provided in the middle of the connecting rod A 21; a circular ring B 221 parallel to the connecting rod B 22 is fixedly connected to the first end of the connecting rod B 22; a circular ring C 231 parallel to the connecting rod C 23 is fixedly connected to the first end of the connecting rod C 23; a central shaft 2311 is coaxially fixed to the center of the circular ring C 231; the central shaft 2311 passes through the circular ring B 221 and the circular ring A 215 in sequence and is threadedly connected to the locking nut 3; the central shaft 2311 cooperates with the circular ring A 215 and the circular ring B 221 to realize the hinge connection between the connecting rod A 21, the connecting rod B 22, and the connecting rod C 23.

[0036] Ring A 215 is located at the upper part of the transverse section of connecting rod A 21; ring B 221 is located at the middle part of the transverse section of connecting rod B 22; ring C 231 is located at the bottom of the transverse section of connecting rod C 23.

[0037] The center of the ring 221 has a coaxial fitting ring 2211; the outer wall of the fitting ring 2211 is connected to the inner wall of the ring 215; the inner wall of the fitting ring 2211 is connected to the outer wall of the central shaft 2311; the fitting ring 2211 isolates the central shaft 2311 from the ring 215, so as to prevent the rotation of the connecting rod 23 from affecting the connecting rod 21.

[0038] The height of the fitting ring 2211 is equivalent to the thickness of the ring A 215, so that the locking nut 3 can fully limit the axial movement of the ring A 215, ensuring that the ring A 215, ring B 221, and ring C 231 are tightly attached, and the connecting rod A 21, connecting rod B 22, and connecting rod C 23 are all in the same plane.

[0039] Example 2: Example 2 is basically the same as Example 1, and the similarities will not be repeated. The difference is that the base plate 1 is provided with expansion bolt mounting holes 12 for installing expansion bolts so that the base plate 1 is stably connected to the ground.

[0040] There are four expansion bolt mounting holes 12, which are symmetrically arranged on both sides of the side plate 11 to ensure that the base plate 1 is evenly and stably connected to the ground.

Claims

1. A tool for installing a bottom spherical steel truss, characterized in that, The system includes a base plate and connectors. The connectors include connecting rod A, connecting rod B, connecting rod C, a hook plate, and three node connectors. Connecting rod A (middle section), connecting rod B (tail end), and connecting rod C (tail end) are hinged together. The three node connectors are respectively installed at the beginning of connecting rod A, connecting rod B, and connecting rod C. Each node connector includes a U-shaped clip, a sleeve matching the node of the spherical structure, a locking bolt, and a fixing screw. Hinged screws symmetrically penetrate both sides of the U-shaped clip. The ends of the hinged screws are threaded to the side wall of the sleeve. An adjusting plate extends outward from the side of the sleeve, parallel to the U-shaped clip. The adjusting plate is equipped with… Several adjustment holes are arranged circumferentially around the hinge screw; a locking bolt passes through the U-shaped clip and the adjustment holes; a crossbar is provided at the tail end of the connecting rod A; the crossbar is perpendicularly connected to the connecting rod A; both ends of the crossbar are provided with transverse elongated holes symmetrical about the connecting rod A; the U-shaped clip is connected to the end of the crossbar by a fixing screw; the fixing screw passes through the transverse elongated hole; the upper end of the hook plate is fixedly connected to the connecting rod A, and the lower end is fitted with a hinge shaft; a side plate extends upward from the base plate; the hinge shaft passes through the side plate; the lower end of the hook plate is provided with adjustment holes circumferentially distributed around the hinge shaft; a locking shaft is also connected through the side plate; the locking shaft passes through the adjustment holes.

2. The installation tool for the bottom spherical steel structure truss according to claim 1, characterized in that: There are two side plates, symmetrically arranged on both sides of the hook plate; the locking shaft passes through the two side plates.

3. The installation tool for the bottom spherical steel structure truss according to claim 1, characterized in that: The first end of connecting rod A, the first end of connecting rod B, and the first end of connecting rod C are all provided with a coaxial cavity A and a fastening nail A that penetrates the cavity A; the node connector also includes a telescopic shaft that matches the cavity A; the outer end of the telescopic shaft is connected to the midpoint of the U-shaped clip; the telescopic shaft is inserted into the cavity A and locked by the fastening nail A.

4. The installation tool for the bottom spherical steel structure truss according to claim 3, characterized in that: The transverse cross-sections of the telescopic shaft and the cavity A are both matching polygons.

5. The installation tool for the bottom spherical steel structure truss according to claim 3, characterized in that: The tail end of connecting rod A is provided with a cavity B coaxially arranged, a telescopic rod B inserted into the cavity B, and a fastening nail B; the telescopic rod B is locked to the tail end of connecting rod A by the fastening nail B; a crossbar is set on the telescopic rod B.

6. The installation tool for the bottom spherical steel structure truss according to claim 1, characterized in that: It also includes a locking nut; a circular ring A parallel to the connecting rod A is provided in the middle of the connecting rod A; a circular ring B parallel to the connecting rod B is fixedly connected to the first end of the connecting rod B; a circular ring C parallel to the connecting rod C is fixedly connected to the first end of the connecting rod C; a central shaft is fixedly connected to the center of the circular ring C coaxially; the central shaft passes through the circular ring B and the circular ring A in sequence and is then threadedly connected to the locking nut.

7. The installation tool for the bottom spherical steel structure truss according to claim 6, characterized in that: The center of ring B has a coaxial fitting ring; the outer wall of the fitting ring is connected to the inner wall of ring A; the inner wall of the fitting ring is connected to the outer wall of the central axis.

8. The installation tool for the bottom spherical steel structure truss according to claim 7, characterized in that: The height of the ring is roughly the same as the thickness of the ring armor.

9. The installation tool for the bottom spherical steel structure truss according to claim 1, characterized in that: The base plate is equipped with expansion bolt mounting holes.

10. The installation tool for the bottom spherical steel structure truss according to claim 9, characterized in that: There are four expansion bolt mounting holes, symmetrically arranged on both sides of the side plate.

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