Positioning device for assisting installation of steel box girder

Abstract

The utility model relates to a positioning device for assisting installation of a steel box girder. The positioning device comprises a picking-out rod piece, a limiting vertical rod, an end clamp and a fastening bolt. The limiting vertical rod is vertically arranged on the picking-out rod piece, and one end of the picking-out rod piece is connected with the end clamp through a fastening bolt. Positioning before hoisting can be achieved, the plane position where the steel box girder is in place is locked in advance, and when the steel box girder is hoisted to the side face to be attached to the limiting device, the plane position is aligned.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of steel structure construction, and concretely relates to a positioning device for assisting steel box girder installation. BACKGROUND

[0002] In the steel box girder bridge installation process, the horizontal angle steel is usually welded on the upper pipe of the jig, and a section of angle steel is welded vertically on the horizontal angle steel as a temporary side positioning measure, the conventional method is that when the hoisted object approaches the target position, the inverted chain is used to fine-tune the plane position and elevation, so that the steel box girder is accurately positioned, and the process consumes more time, and there is a large optimization space. SUMMARY

[0003] The utility model aims at overcoming the defects of prior art, and provides a positioning device for assisting steel box girder installation, and solves the problem of long time consumption in installing steel box girder.

[0004] In order to solve the above technical problems, the utility model is realized as follows:

[0005] A positioning device for assisting steel box girder installation, characterized in that it comprises a projecting rod, a limiting vertical rod, an end clamp and a fastening bolt, the limiting vertical rod is vertically arranged on the projecting rod, and the projecting rod is connected with the end clamp through the fastening bolt at one end.

[0006] The positioning device for assisting steel box girder installation, characterized in that the projecting rod (1) comprises horizontal angle steel, a scale, a groove and a bolt hole.

[0007] The horizontal angle steel has a groove on the side surface.

[0008] The scale is horizontally arranged on the upper part of the side surface of the horizontal angle steel, and is used for satisfying the rapid adjustment of the hoisting position of the on-site box girder.

[0009] The bolt hole is used for connecting and fastening the projecting rod and the end clamp through the bolt.

[0010] The positioning device for assisting steel box girder installation, characterized in that the limiting vertical rod comprises vertical angle steel, a reflective sticker, a sliding protrusion, a fastening bolt and an ear plate.

[0011] The vertical angle steel is vertically arranged, and the lower part is embedded in the groove through the sliding protrusion, so that the limiting vertical rod can slide horizontally on the horizontal angle steel, and after the box girder is installed in place, the limiting vertical rod is tightly attached to the web of the box girder to play a certain limiting action, and the limiting vertical rod can move with the displacement of the box girder caused by the vibration load without damaging the device.

[0012] The ear plate is welded with the angle steel at one end, and a bolt hole is arranged vertically at the other end, the screw hole size is capable of allowing the fastening bolt to pass through, the reflective sticker is connected on the vertical angle steel, and the reflective sticker can rotate by 180 degrees around the connection, and is stored in the inside of the vertical angle steel when not in use.

[0013] The positioning device for assisting the installation of the steel box girder has the characteristics that the end clamp comprises two semicircular steel, screw holes and fastening bolts.

[0014] The semicircular steel and the horizontal parts at two ends are provided with bolt holes, and one end is connected and fastened through the fastening bolts.

[0015] The bolt holes are connected and fastened with the horizontal angle steel through the bolts.

[0016] The positioning device for assisting the installation of the steel box girder has the characteristics that the fastening bolts comprise bolts and gaskets, when the semicircular steel is connected on the top circular pipe of the jig, the bolts are sequentially passed through the semicircular steel, the horizontal angle steel and the semicircular steel, the projecting rod and the end clamp are connected and fastened, when the size of the top circular pipe of the jig is large, the gaskets are added in the middle to connect and fasten the horizontal angle steel and the semicircular steel, so that the end clamp can be fastened on the top circular pipe of the jig with different sizes.

[0017] The positioning device for assisting the installation of the steel box girder has the characteristics that the fastening bolts comprise bolts and gaskets, when the semicircular steel is connected on the top circular pipe of the jig, the bolts are sequentially passed through the semicircular steel, the horizontal angle steel and the semicircular steel, the projecting rod and the end clamp are connected and fastened, when the size of the top circular pipe of the jig is large, the gaskets are added in the middle to connect and fasten the horizontal angle steel and the semicircular steel, so that the end clamp can be fastened on the top circular pipe of the jig with different sizes. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model makes further detailed description in connection with the drawings and implementation mode:

[0019] Figure 1 It is structure schematic view of the application.

[0020] Figure 2 It is schematic diagram of the projecting rod.

[0021] Figure 3 It is schematic diagram of the limiting vertical rod.

[0022] Figure 4 It is schematic diagram of the end clamp.

[0023] Figure 5 It is use state diagram. DETAILED DESCRIPTION

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0025] like Figures 1-5 As shown: A positioning device for assisting in the installation of steel box girders includes a cantilevered member 1, a limiting upright 2, an end clamp 3, and a fastening bolt 4; the limiting upright is vertically mounted on the cantilevered member, and one end of the cantilevered member is connected to the end clamp via the fastening bolt.

[0026] The protruding member 1 includes: a horizontal angle steel 11, a scale 12, a groove 13, and a bolt hole 14;

[0027] The horizontal angle steel 11 has a groove 13 on its side, and the size of the groove should be such that the sliding protrusion 23 can be embedded in it and slide horizontally.

[0028] The scale 12 is horizontally arranged on the upper side of the horizontal angle steel 11 to facilitate rapid adjustment of the box girder hoisting position on site.

[0029] The bolt hole 14 is used to allow the rod 1 to be fastened to the end clamp 3 by bolts;

[0030] The limiting pole 2 includes: vertical angle steel 21, reflective sticker 22, sliding protrusion 23, fastening bolt 24, and ear plate 25;

[0031] The vertical angle steel 21 is set vertically, and the lower part is fixed in the groove 13 by the sliding protrusion 23, which allows the limiting rod 2 to slide horizontally on the horizontal angle steel 11. After the box girder is installed in place, it closely adheres to the web of the box girder to play a certain limiting role. It moves with the displacement of the box girder caused by vibration load without damaging the device.

[0032] One end of the ear plate 25 is firmly welded to the angle steel 21, and the other end is provided with a vertical bolt hole. The size of the bolt hole is such that the fastening bolt 24 can pass through. At the same time, the reflective sticker 22 is connected to the vertical angle steel 21, and the reflective sticker 22 can rotate 180° around the connection point and be stored inside the vertical angle steel 21 when not in use.

[0033] The end clamp 3 includes: two approximately semi-circular steel profiles 31 and 32, a screw hole 34, and a fastening bolt 33;

[0034] The semi-circular steel sections 31 and 32 have bolt holes at their horizontal ends, and one end is fastened by a fastening bolt 33.

[0035] The bolt hole 34 is connected and fastened to the horizontal angle steel 11 by a through bolt;

[0036] The fastening bolt 4 comprises a bolt and a gasket, when the semicircular steel is connected to the top circular pipe 35 of the jig, it is sequentially threaded through the semicircular steel 31, the horizontal angle steel 11, the semicircular steel 32, so that the cantilever member 1 and the end clamp 3 are connected and fastened, when the size of the top circular pipe of the jig is large, the horizontal angle steel 11 and the semicircular steel 31, 32 are connected and fastened by adding a gasket in the middle, so that the end clamp 3 can be fastened on the top circular pipe of the jig with different sizes; when the top is a square pipe or the like, the shape of the end clamp 3 can be changed, and its function is not changed.

[0037] The above is only an embodiment of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the embodiment, those skilled in the art can still modify the technical solutions described in the foregoing embodiment or make equivalent replacement to some technical features, but any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning device for assisting in the installation of steel box girders, characterized in that: It includes a protruding rod (1), a limiting upright (2), an end clamp (3), and a fastening bolt (4); the limiting upright is vertically set on the protruding rod, and one end of the protruding rod is connected to the end clamp through the fastening bolt.

2. The positioning device for assisting in the installation of steel box girders according to claim 1, characterized in that: The protruding rod (1) includes: a horizontal angle steel (11), a scale (12), a groove (13), and a bolt hole (14); The horizontal angle steel (11) has a groove (13) on its side. The scale (12) is horizontally arranged on the upper side of the horizontal angle steel (11) to meet the needs of rapid adjustment of the hoisting position of the box girder on site; The bolt hole (14) is used to pull out the rod (1) and the end clamp (3) and fasten them together with bolts.

3. A positioning device for assisting in the installation of steel box girders according to claim 2, characterized in that: The limiting pole (2) includes: vertical angle steel (21), reflective sticker (22), sliding protrusion (23), fastening bolt (24), and ear plate (25); The vertical angle steel (21) is set vertically, and the lower part is fixed in the groove (13) by the sliding protrusion (23), which allows the limiting rod (2) to slide horizontally on the horizontal angle steel (11). After the box girder is installed, it closely adheres to the web of the box girder to play a certain limiting role. It moves with the displacement caused by the vibration load of the box girder and does not damage the device. One end of the ear plate (25) is firmly welded to the angle steel (21), and the other end is provided with a vertical bolt hole. The size of the bolt hole is such that the fastening bolt (24) can pass through. At the same time, the reflective sticker (22) is connected to the vertical angle steel (21) and the reflective sticker (22) can rotate 180° around the connection point. When not in use, it is stored inside the vertical angle steel (21).

4. A positioning device for assisting in the installation of steel box girders according to claim 3, characterized in that: The end clamp (3) includes: two semi-circular steel profiles (31) (32), screw holes (34), and fastening bolts (33); The semi-circular steel sections (31) and (32) have bolt holes at their horizontal ends, and one end is fastened by a fastening bolt (33). The bolt hole (34) is fastened to the horizontal angle steel (11) by passing through bolts.

5. A positioning device for assisting in the installation of steel box girders according to claim 4, characterized in that: The fastening bolt (4) includes a bolt and a washer. When the semi-circular steel is connected to the top round tube (35) of the frame, it passes through the semi-circular steel (31), the horizontal angle steel (11), and the semi-circular steel (32) in sequence, so that the protruding rod (1) and the end clamp (3) are connected and fastened. When the size of the top round tube of the frame is large, the horizontal angle steel (11) and the semi-circular steel (31) (32) are connected and fastened by adding a washer in the middle, so that the end clamp (3) can be fastened on the top round tube of the frame of different sizes.

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