Steel truss girder assembling support with adjustable longitudinal slope

Abstract

The utility model relates to a longitudinal slope adjustable steel truss girder assembling support which comprises a base and an assembling jig frame, a vertical supporting rod is welded to the middle position of the upper surface of the base, first hinge plates are arranged on the front side and the rear side of the top of the vertical supporting rod, and second hinge plates are arranged on the front side and the rear side of the middle position of the lower surface of the assembling jig frame. Lower connecting lug plate sets are welded to the left side and the right side of the upper surface of the base, a lower connecting pin shaft is installed between the lower connecting lug plate sets, a lower steel wire rope is connected to the lower connecting pin shaft, upper connecting lug plate sets are correspondingly welded to the left side and the right side of the lower surface of the assembling jig frame, and an upper connecting pin shaft is installed between the upper connecting lug plate sets. Upper steel wire ropes and lower steel wire ropes are connected to the upper connecting pin shafts, and turnbuckles are arranged between the upper steel wire ropes. The beam bottom longitudinal slope adjusting device reduces beam bottom longitudinal slope adjusting difficulty in the on-site assembling construction process of the steel truss girder component, improves assembling construction efficiency of the steel truss girder, and is simple, reliable, low in manufacturing cost and capable of being repeatedly used.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge steel structure assembly construction, in particular to a steel truss assembly bracket with adjustable longitudinal slope. Background Art

[0002] Steel truss bridges are widely used in large and medium span bridges and super-large span bridges due to their advantages such as light weight, high rigidity and suitability for industrial manufacturing. Steel truss components are generally processed and manufactured in steel structure processing plants and then transported to the construction site for assembly. When steel trusses are assembled on site, the elevation accuracy of the assembly frame is required to be high. For bridges with longitudinal slopes, the assembly frame is usually made by welding and cutting steel legs. The current frame has the disadvantages of low accuracy and poor versatility. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the prior art and provides a steel truss beam assembling bracket with adjustable longitudinal slope.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A steel truss assembly bracket with adjustable longitudinal slope comprises a base, an assembly frame is arranged above the base, a vertical support rod is welded to the middle position of the upper surface of the base, a first hinge plate is arranged on the front and rear sides of the top of the vertical support rod, a second hinge plate is arranged on the front and rear sides of the middle position of the lower surface of the assembly frame, the first hinge plate and the second hinge plate are hinged by a center pin and an anti-drop nut, lower connecting ear plate groups are welded to the left and right sides of the upper surface of the base, a lower connecting pin is installed between the lower connecting ear plate groups by a lower locking nut, a lower steel wire rope is connected to the lower connecting pin, upper connecting ear plate groups are welded to the left and right sides of the lower surface of the assembly frame correspondingly, an upper connecting pin is installed between the upper connecting ear plate groups by an upper locking nut, an upper steel wire rope is connected to the upper connecting pin, and a basket screw is arranged between the corresponding lower steel wire rope and upper steel wire rope.

[0006] The first hinge plate and the second hinge plate are correspondingly provided with central pin shaft holes, and the pin shaft rod of the central pin shaft is penetrated in the central pin shaft hole.

[0007] The lower connecting ear plate group comprises two lower connecting ear plates arranged front and back, the two lower connecting ear plates are provided with lower connecting pin shaft holes, and the pin shaft rods of the lower connecting pin shafts are passed through the lower connecting pin shaft holes.

[0008] The upper connecting ear plate group comprises two upper connecting ear plates arranged front and back, upper connecting pin shaft holes are opened on the two upper connecting ear plates, and the pin shaft rods of the upper connecting pin shafts are passed through the upper connecting pin shaft holes.

[0009] The beneficial effects of the utility model are as follows: the utility model reduces the difficulty of adjusting the longitudinal slope of the bottom of the beam during the on-site assembly construction of the steel truss beam components, improves the assembly construction efficiency of the steel truss beams, is simple and reliable, has a low cost and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 A schematic diagram of the hinge connection between the first hinge plate and the second hinge plate;

[0012] Figure 3 It is a connection diagram of the lower connecting ear plate group and the upper connecting ear plate group;

[0013] Figure 4 It is a schematic diagram of the utility model when in use;

[0014] In the figure: 1-base; 2-assembly tire frame; 3-vertical support rod; 4-first hinge plate; 5-second hinge plate; 6-center pin; 7-anti-drop nut; 8-lower connecting ear plate group; 9-lower locking nut; 10-lower connecting pin; 11-lower wire rope; 12-upper connecting ear plate group; 13-upper locking nut; 14-upper connecting pin; 15-upper wire rope; 16-basket screw; 17-first reinforcing steel ring plate; 18-second reinforcing steel ring plate; 19-third reinforcing steel ring plate;

[0015] 801-lower connecting ear plate; 1201-upper connecting ear plate;

[0016] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0017] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0018] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] A steel truss assembly bracket with adjustable longitudinal slope, such as Figures 1 to 3 As shown, it includes a base 1, an assembly tire frame 2, a vertical support rod 3, a first hinge plate 4, a second hinge plate 5, a center pin 6, an anti-drop nut 7, a lower connecting ear plate group 8, a lower locking nut 9, a lower connecting pin 10, a lower steel wire rope 11, an upper connecting ear plate group 12, an upper locking nut 13, an upper connecting pin 14, an upper steel wire rope 15, a basket screw 16, a first reinforcing steel ring plate 17, a second reinforcing steel ring plate 18 and a third reinforcing steel ring plate 19.

[0022] An assembling tire frame 2 is provided above the base 1, a vertical support rod 3 is welded to the middle position of the upper surface of the base 1, a first hinge plate 4 is provided on the front and rear sides of the top of the vertical support rod 3, a second hinge plate 5 is provided on the front and rear sides of the middle position of the lower surface of the assembling tire frame 2, the first hinge plate 4 and the second hinge plate 5 are hinged by a center pin 6 and an anti-drop nut 7, a lower connecting ear plate group 8 is welded to the left and right sides of the upper surface of the base 1, a lower connecting pin 10 is installed between the lower connecting ear plate groups 8 through a lower locking nut 9, and a lower steel wire rope 11 is connected to the lower connecting pin 10, an upper connecting ear plate group 12 is welded to the left and right sides of the lower surface of the assembling tire frame 2, an upper connecting pin 14 is installed between the upper connecting ear plate groups 12 through an upper locking nut 13, an upper steel wire rope 15 is connected to the upper connecting pin 14, and a basket screw 16 is provided between the corresponding lower steel wire rope 11 and the upper steel wire rope 15.

[0023] The first hinge plate 4 and the second hinge plate 5 are provided with corresponding central pin holes, and the pin rods of the central pin 6 are passed through the central pin holes.

[0024] The lower connecting ear plate group 8 includes two lower connecting ear plates 801 arranged front and rear, and lower connecting pin shaft holes are opened on the two lower connecting ear plates 801, and the pin shaft rods of the lower connecting pin shaft 10 are inserted into the lower connecting pin shaft holes.

[0025] The upper connecting ear plate group 12 includes two upper connecting ear plates 1201 arranged front and rear, and upper connecting pin shaft holes are opened on the two upper connecting ear plates 1201, and the pin shaft rods of the upper connecting pin shaft 14 are inserted into the upper connecting pin shaft holes.

[0026] The first hinge plate 4 is provided with a first reinforcing steel ring plate 17 on one side of the center pin hole, and the second hinge plate 5 is provided with a first reinforcing steel ring plate 17 on one side of the center pin hole. The center of the first reinforcing steel ring plate 17 coincides with the center of the center pin hole, and the inner diameter of the first reinforcing steel ring plate 17 is equal to the diameter of the center pin hole.

[0027] The lower connecting ear plate 801 is provided with a second reinforcing steel ring plate 18 on one side of the lower connecting pin hole. The center of the second reinforcing steel ring plate 18 coincides with the center of the lower connecting pin hole, and the inner diameter of the second reinforcing steel ring plate 18 is equal to the diameter of the lower connecting pin hole.

[0028] The upper connecting ear plate 1201 is provided with a third reinforcing steel ring plate 19 on one side of the upper connecting pin shaft hole. The center of the third reinforcing steel ring plate 19 coincides with the center of the upper connecting pin shaft hole, and the inner diameter of the third reinforcing steel ring plate 19 is equal to the diameter of the upper connecting pin shaft hole.

[0029] The second hinged plate 5 is an arc-shaped plate structure.

[0030] When the utility model is used, Figure 4 As shown, when the longitudinal slope of the steel truss segment above the assembly frame 2 needs to be adjusted, the total length of the lower steel wire rope 11 and the upper steel wire rope 15 is changed by adjusting the basket screw 16, and the distance between the corresponding lower connecting pin 10 and the upper connecting pin 14 is changed, thereby changing the angle.

[0031] The utility model reduces the difficulty of adjusting the longitudinal slope of the bottom of the beam during the on-site assembly construction of the steel truss beam components, improves the assembly construction efficiency of the steel truss beams, is simple and reliable, has low cost and can be reused.

[0032] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A steel truss assembly bracket with adjustable longitudinal slope, characterized in that: The invention comprises a base (1), an assembly frame (2) is arranged above the base (1), a vertical support rod (3) is welded at the middle position of the upper surface of the base (1), a first hinge plate (4) is arranged at the front and rear sides of the top of the vertical support rod (3), a second hinge plate (5) is arranged at the front and rear sides of the middle position of the lower surface of the assembly frame (2), the first hinge plate (4) and the second hinge plate (5) are hingedly connected by a center pin (6) and an anti-drop nut (7), a lower connecting ear plate group (8) is welded at the left and right sides of the upper surface of the base (1), and the lower connecting ear plates A lower connecting pin (10) is installed between the groups (8) through a lower locking nut (9), and a lower steel wire rope (11) is connected to the lower connecting pin (10). Upper connecting ear plate groups (12) are welded correspondingly on the left and right sides of the lower surface of the assembled tire frame (2), and an upper connecting pin (14) is installed between the upper connecting ear plate groups (12) through an upper locking nut (13), and an upper steel wire rope (15) is connected to the upper connecting pin (14). A basket screw (16) is provided between the corresponding lower steel wire rope (11) and the upper steel wire rope (15).

2. The steel truss beam assembly bracket with adjustable longitudinal slope according to claim 1, characterized in that: The first hinge plate (4) and the second hinge plate (5) are provided with corresponding central pin holes, and the pin rods of the central pin (6) are inserted into the central pin holes.

3. The steel truss beam assembly bracket with adjustable longitudinal slope according to claim 2, characterized in that: The lower connecting ear plate group (8) comprises two lower connecting ear plates (801) arranged front and rear, the two lower connecting ear plates (801) are provided with lower connecting pin shaft holes, and the pin shaft rods of the lower connecting pin shafts (10) are inserted into the lower connecting pin shaft holes.

4. The steel truss beam assembly bracket with adjustable longitudinal slope according to claim 3, characterized in that: The upper connecting ear plate group (12) comprises two upper connecting ear plates (1201) arranged front and rear, and upper connecting pin shaft holes are opened on the two upper connecting ear plates (1201), and the pin shaft rods of the upper connecting pin shaft (14) are inserted into the upper connecting pin shaft holes.

5. The steel truss beam assembly bracket with adjustable longitudinal slope according to claim 4, characterized in that: A first reinforcing steel ring plate (17) is provided on one side of the central pin shaft hole of the first hinge plate (4) and on one side of the central pin shaft hole of the second hinge plate (5).

6. The steel truss beam assembly bracket with adjustable longitudinal slope according to claim 5, characterized in that: The lower connecting ear plate (801) is provided with a second reinforcing steel ring plate (18) on one side of the lower connecting pin shaft hole.

7. The steel truss beam assembly bracket with adjustable longitudinal slope according to claim 6, characterized in that: The upper connecting ear plate (1201) is provided with a third reinforcing steel ring plate (19) on one side of the upper connecting pin shaft hole.

8. The steel truss beam assembly bracket with adjustable longitudinal slope according to claim 7, characterized in that: The second hinged plate (5) is an arc-shaped plate structure.

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