Hinged support

Abstract

The utility model relates to the field of supports, in particular to a hinged support. Comprising a support base, a side plate is welded to the support base, a bearing plate is welded to the side plate, the side plate is rotatably connected with a first supporting rod piece through a pin shaft, a first gap is reserved between the first supporting rod piece and the side plate, a second supporting rod piece perpendicular to the first supporting rod piece is arranged on the first supporting rod piece, and a second gap is reserved between the second supporting rod piece and the outer portion of the side plate. A second lug plate extending out of the second supporting rod piece is hinged to the first lug plate on the side plate. The second lug plate is in a circular arc shape, bolt holes are formed in the corresponding positions of the first lug plate and the second lug plate, and bolts and nuts are arranged. The bolt hole is quincunx-shaped, the hole diameter is larger than the diameter of the bolt, the nut is parallel to the lug plate, and the diameter of the nut is larger than that of the quincunx-shaped bolt hole, so that the bolt slides in the hole, and the nut cannot penetrate through the hole. According to the scheme, the hinge structure can rotate in two directions.

Description

Technical Field

[0001] The utility model relates to the field of supports, in particular to a hinged support. Background Art

[0002] At present, large-span steel structures are widely used in the construction field. Large-span steel structures are affected by the increase or decrease of external temperature, which will produce a certain extension or shortening in the length direction of the structure. If the supports of large-span steel structures are rigidly connected, the supports will limit the extension or shortening of the structure, and then generate a large internal force at the supports, resulting in huge supports and uneconomical.

[0003] If hinged supports are used, the elongation or shortening of the steel structure in the length direction will not be restricted by the supports, thereby reducing the internal force generated by the supports and reducing the size of the supports. However, the supports currently used are generally one-way hinged supports, which can be used for one-way force-bearing steel structure systems such as plane trusses. One-way hinged supports are not applicable to spatial force-bearing systems such as steel grid structures. Although there are finished products of two-way rotating hinged supports, they are large in size, expensive in cost, and have high requirements for the placement of the lower part. The cost of using them in structural systems with a large number of supports such as steel grid shells is huge, and a small and low-cost two-way hinged support is needed instead. Utility Model Content

[0004] In order to achieve simultaneous articulation and rotation in two vertical directions, the utility model provides a bidirectionally rotatable steel structure support structure, which is suitable for a steel lattice shell structure system and can achieve safe articulation and reduce the internal force of the support.

[0005] The utility model adopts the following technical means:

[0006] A hinge support includes a support base, a side plate welded to the support base, a support plate welded to the side plate, the side plate is rotatably connected to a first support rod through a pin, a first gap is left between the first support rod and the side plate, a second support rod is provided on the first support rod and is perpendicular to the first support rod, a second gap is left between the second support rod and the outside of the side plate, and a second ear plate extending outward from the second support rod is hinged to the first ear plate on the side plate.

[0007] Furthermore, the first support rod and the second support rod are integrally formed to form a cross-shaped support rod.

[0008] Furthermore, the support plate is trapezoidal and welded to the support base.

[0009] Furthermore, the contact surface between the second supporting rod and the supporting plate is in an arc shape.

[0010] Furthermore, the second ear plate is arc-shaped, and bolt holes are provided at positions corresponding to the first ear plate and the second ear plate, and bolts and nuts are provided.

[0011] Furthermore, the design of the arc-shaped contact surface and the ear plate helps to ensure that the movement trajectory of the bolt is coordinated with the rotation direction of the support rod, thereby achieving controllable rotational movement.

[0012] Furthermore, the bolt hole is plum blossom-shaped, the hole diameter is larger than the bolt diameter, and the nut is arranged parallel to the ear plate, and its diameter is larger than the plum blossom-shaped bolt hole, so that the bolt slides in the opening and the nut will not pass through the opening.

[0013] Furthermore, the bolt holes provided on the ear plate are distributed at both ends of the ear plate.

[0014] Furthermore, the distance between the first gap and the second gap is 1 / 50 to 1 / 100 of the height of the side plate.

[0015] Furthermore, an outward expansion hole is opened at the connection between the side plate and the pin shaft, the inner hole diameter is the same as the pin shaft diameter, and the outer hole diameter gradually increases, with a change angle of 30°-50°.

[0016] The utility model has the following beneficial effects:

[0017] By utilizing the gap formed between the support rod and the side plate and the hinged structure formed by the arc-shaped contact surface and the ear plate, the axial or radial rotation of the cross-shaped support rod relative to the pin is achieved through the displacement of the bolt in the hole.

[0018] The support is hinged and rotated in two directions, so that the steel structure can expand and contract more freely and adapt to changes in the outside world. For spatial force systems, such as steel lattice shell structures, bidirectional hinged supports can better adapt to the deformation of the structure in three-dimensional space and improve the stability and safety of the structure. In addition, the bidirectional hinge design of the support can reduce the internal force caused by the elongation or shortening of the structure in two directions, which helps to reduce the load at the support, reduce the size of the support, and improve the economy of the structure.

[0019] The integrated design of the support member reduces the number of components and simplifies the structure, thereby reducing the cost of manufacturing and installation. The support plate adopts a trapezoidal design, which helps to reduce the volume of the support. The trapezoidal structure can reduce the use of materials while providing sufficient support. The above design and technical means play an important role in reducing the use of materials, simplifying the structure, and reducing the difficulty of manufacturing, resulting in the small size and low cost of the support structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a support structure of a specific implementation of the utility model;

[0021] Figure 2 It is a cross-sectional view taken along line AA of a specific implementation of the utility model;

[0022] Figure 3 It is a BB cross-sectional view of a specific implementation of the utility model;

[0023] Figure 4 It is a CC cross-sectional view of a specific implementation of the utility model;

[0024] Figure 5 It is a DD cross-sectional view of a specific implementation of the utility model;

[0025] Figure 6 It is a cross-sectional view of an EE of a specific implementation of the utility model;

[0026] Figure 7 It is a FF three-dimensional diagram of a specific implementation of the utility model;

[0027] Figure 8 A three-dimensional diagram of the arrangement of lugs and bolts for a specific implementation of the utility model;

[0028] Fig. 9 This is a schematic diagram of the structure of the utility model rotating along the radial direction of the pin shaft;

[0029] Fig.10 It is a schematic diagram of the structure of the utility model rotating along the axial direction of the pin shaft.

[0030] The numbers in the figure are: 1. support base; 2. support plate; 3. pin shaft; 4. second support rod; 5. second gap; 6. side plate; 7. second ear plate; 8. bolt; 9. nut; 10. bolt hole; 11. first support rod; 12. first ear plate; 13. outward expansion hole; 14. first gap. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-8 Schematic diagram, the support is provided with a pin shaft 3 in the span direction (main force direction). The first support rod 11 is connected with the pin shaft 3, and the first support rod 11 and the second support rod 4 are integrally formed to form a cross-shaped support rod, which can rotate along the axial direction of the pin shaft 3.

[0033] In this embodiment, a certain distance, namely a first gap 14 , is left between the two side plates 6 of the pin shaft 3 and the first support rod 11 . The distance is 1 / 50 to 1 / 100 of the height of the side plates 6 and can serve as a limiting displacement for the radial rotation of the support rod along the pin shaft 3 .

[0034] In this embodiment, a trapezoidal support plate 2 is disposed on the outer sides of the two side plates 6 of the pin shaft 3 to enhance the rigidity of the side plates 6 outside the plane.

[0035] In this embodiment, a certain distance is left between the second support rod 4 and the two side plates 6 of the pin shaft 3, namely the second gap 13. The distance is 1 / 50 to 1 / 100 of the height of the side plates of the pin shaft, which can serve as a limiting displacement for the radial rotation of the support rod along the pin shaft 3.

[0036] In this embodiment, the contact surface of the second support rod 4 with the support plate 2 of the two side plates 6 of the pin shaft 3 is arc-shaped, and second ear plates 7 extend to both sides. The second ear plates 7 are arc-shaped in both directions.

[0037] In this embodiment, two bolt holes 10 are formed on each side of the ear plate 7, and the openings are in a plum blossom shape, and the size is slightly larger than the diameter of the bolt 8. The nut 9 is circular in size, arranged parallel to the ear plate, and the diameter needs to be larger than the plum blossom shape of the opening. The bolt 8 can slide in the opening without the nut 9 passing through the opening. The openings on the ear plate are arranged at both ends of the arc-shaped ear plate.

[0038] In this embodiment, the area where the support plate 2 of the two side plates of the pin shaft connects with the second support rod 4 also extends the first ear plate 12 to both sides, and a bolt hole 10 is opened and a bolt 8 and a nut 9 are set at a position corresponding to the second ear plate 7 of the second support rod 4. The shape of the opening is the same as the shape of the opening of the second ear plate 7.

[0039] In this embodiment, holes are opened at the connection between the two side plates 6 and the pin shaft 3. The diameter of the hole on the inner side is the same as the diameter of the pin shaft 3, and the diameter of the hole increases toward the outer side to form a trumpet shape. The change angle can be 30° to 50°.

[0040] See also Fig. 9 and 10 In this embodiment, the hinge structure formed by the bolt-connected ear plate and the arc contact surface allows the support to rotate along the radial direction of the pin shaft 3 or along the axial direction of the pin shaft 3. This is mainly achieved by the rotation of the arc-shaped ear plate and the displacement of the bolt in the plum blossom-shaped bolt hole.

[0041] It is understood in the art that the support hinge rotation in this application refers to the structural rotation allowed at a specific position in the building structure, which can be very small and is a means of controlling the rotation introduced for specific structural design and performance requirements, rather than the rotational movement of any system or object in the ordinary sense.

Claims

1. A hinge support, characterized in that , comprising a support base (1), a side plate (6) welded to the support base (1), a support plate (2) welded to the side plate (6), the side plate (6) being rotatably connected to a first support rod (11) via a pin shaft (3), a first gap (14) being reserved between the first support rod (11) and the side plate (6), a second support rod (4) being arranged on the first support rod (11) and being perpendicular thereto, a second gap (5) being reserved outside the second support rod (4) and the side plate (6), a second ear plate (7) extending outward from the second support rod (4) being hinged to the first ear plate (12) on the side plate (6).

2. The hinge support according to claim 1, characterized in that: The first support rod (11) and the second support rod (4) are integrally formed to form a cross-shaped support rod.

3. The hinge support according to claim 1, characterized in that: The supporting plate (2) is trapezoidal and is welded to the support base (1).

4. The hinge support according to claim 1, characterized in that: The contact surface between the second supporting rod (4) and the supporting plate (2) is in an arc shape.

5. The hinge support according to claim 4, characterized in that: The second ear plate (7) is in an arc shape. Bolt holes (10) are provided at positions corresponding to the first ear plate (12) and the second ear plate (7), and bolts (8) and nuts (9) are provided.

6. The hinge support according to claim 5, characterized in that: The bolt hole (10) is plum blossom-shaped, and its hole diameter is larger than the diameter of the bolt (8). The nut (9) is arranged parallel to the ear plate, and its diameter is larger than the plum blossom-shaped bolt hole (10), so that the bolt (8) slides in the opening without the nut (9) passing through the opening.

7. The hinge support according to claim 5, characterized in that: The bolt holes (10) provided on the ear plate are distributed at both ends of the ear plate.

8. The hinge support according to claim 1, characterized in that: The distance between the first gap (14) and the second gap (5) is 1 / 50 to 1 / 100 of the height of the side plate (6).

9. The hinge support according to claim 1, characterized in that: An outer expansion hole (13) is provided at the connection between the side plate (6) and the pin shaft (3), wherein the inner hole diameter is the same as the diameter of the pin shaft (3), and the outer hole diameter gradually increases, with a change angle of 30°-50°.

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