Railway simply-supported box girder support embedded hole positioning device

Abstract

The utility model discloses a railway simply-supported box girder support embedded hole positioning device which comprises a fixing frame, a plurality of connecting long holes and a plurality of positioning long holes are formed in the fixing frame, and the fixing frame is fixedly connected with a padstone template through bolts at the connecting long holes. And the fixed frame is connected with a plurality of positioners at the plurality of positioning long holes through bolts. The positioning device for the embedded hole of the railway simply-supported box girder support solves the problem that in an existing positioning method, positioning is not accurate due to displacement of a PVC pipe.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning devices, and in particular relates to a positioning device for embedded holes in a railway simply supported box girder support. Background Art

[0002] At present, China's railway operating mileage has exceeded 160,000 kilometers, of which the high-speed railway operating mileage has exceeded 46,000 kilometers. High-speed railway bridges account for a large proportion of the entire line. Among the high-speed railway bridges, simply supported box girders basically account for more than 90% of the length, and the vast majority of simply supported box girders adopt prefabricated erection technology.

[0003] Before the box girder is erected, it is necessary to reserve box girder support anchor bolt holes in the pier top support pad stone for anchoring the box girder support. The current main technology is: before pouring the pier body support pad stone, the pad stone and support position are located by measuring and laying out, and then the pad stone template is installed and fixed according to the layout results. In order to facilitate the reservation of support anchor holes according to the design, after the pad stone template is fixed, the respective reserved hole positions are located according to the support position, and then the PVC pipes of corresponding diameters are placed in the reserved hole positions. The PVC pipes are sealed with multiple layers of tape on the top and bottom to prevent the PVC pipes from entering when pouring the pad stone concrete. The PVC pipes are fixed by welding cross steel bars to the pad stone steel mesh. After completion, the pad stone concrete is poured. After the pad stone concrete reaches the design strength, the PVC pipes embedded in the pad stone concrete are chiseled out to form reserved holes for the subsequent installation of the embedded bolts of the supports. However, in the existing method, concrete vibration can easily cause the PVC pipe to shift; the PVC pipe can easily enter the cement slurry, making it difficult to remove it later; the PVC pipe needs to be manually removed before installing the support, and after the cushion stone concrete reaches the design strength, it is necessary to arrange for manual chiseling to remove the embedded PVC pipe hole by hole before installing the support, which is time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to provide a positioning device for embedded holes of railway simply supported box beam supports, which solves the problem of inaccurate positioning caused by displacement of PVC pipes in existing positioning methods.

[0005] The technical solution adopted by the utility model is a pre-embedded hole positioning device for a railway simply supported box girder support, comprising a fixed frame, a plurality of connecting long holes and a plurality of positioning long holes being opened on the fixed frame, the fixed frame being fixedly connected to a pad stone template at the plurality of connecting long holes by bolts, and the fixed frame being connected to a plurality of positioners at the plurality of positioning long holes by bolts.

[0006] The utility model is also characterized in that:

[0007] The fixed frame includes a first positioning angle iron, which is fixedly connected to the second first positioning angle iron through a first connecting angle iron and a second connecting angle iron. A number of connecting long holes are opened at both ends of the first positioning angle iron and the second first positioning angle iron. The first positioning angle iron and the second first positioning angle iron are fixedly connected to the pad stone template at the connecting long holes by bolts. A number of positioning long holes are opened between the first positioning angle iron and the second first positioning angle iron. The first positioning angle iron and the second first positioning angle iron are fixedly connected to a number of positioners at the positioning long holes by bolts.

[0008] The first positioning angle iron and the second first positioning angle iron are parallel to each other, and the first connecting angle iron and the second connecting angle iron are parallel to each other.

[0009] Several positioners all include a conical steel tube, one end of which is fixedly connected to a top steel plate, and the other end of which is fixedly connected to a bottom steel plate. The top steel plate is fixedly connected to the fixed frame at the positioning long hole by bolts, and a release agent layer is coated on the outer surface of the conical steel tube.

[0010] The diameter of the tapered steel pipe gradually decreases from the top steel plate to the bottom steel plate.

[0011] Several long connection holes are opened along the length of the pad stone template, and the lengths of several long connection holes are greater than the diameters of the screw rods of the bolts.

[0012] A plurality of positioning long holes are opened along the short direction of the pad stone template, and the lengths of a plurality of positioning long holes are greater than the diameters of the screw rods of the bolts.

[0013] A first rangefinder is provided at the connection between the first positioning angle iron and the first connecting angle iron, and the angle between the ray direction of the first rangefinder and the first positioning angle iron is 45°.

[0014] A second rangefinder is provided at the connection between the first positioning angle iron and the second connecting angle iron, and the angle between the ray direction of the second rangefinder and the first positioning angle iron is 45°.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a positioning device for embedded holes of railway simply supported box beam supports. The positioning of the reserved holes does not need to be affected by the vibrating rod when vibrating concrete, which may cause the PVC pipe to shift, thereby ensuring the accuracy of positioning; the upper and lower openings are sealed when pouring concrete, and the sealed openings are not easily damaged, so concrete will not enter the reserved device; since the reserved hole device has a conical structure with a larger upper part and a smaller lower part, it is easier to dismantle the entire device without the need for subsequent manual chiseling, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a positioning device for embedded holes in a railway simply supported box girder support according to the utility model;

[0018] Figure 2It is an elevation view of A of the embedded hole positioning device for a railway simply supported box girder support of the present invention.

[0019] In the figure, 1. first positioning angle iron, 2. second positioning angle iron, 3. first connecting angle iron, 4. second connecting angle iron, 5. tapered steel pipe, 6. top steel plate, 7. bottom steel plate, 8. release agent layer, 9. first rangefinder, 10. second rangefinder. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] The utility model provides a positioning device for embedded holes of railway simply supported box beam supports, such as Figure 1 As shown, it includes a fixed frame, which is provided with a number of connecting long holes and a number of positioning long holes. The fixed frame is fixedly connected to the shim template by bolts at the several connecting long holes, and the fixed frame is connected to a number of positioners by bolts at the several positioning long holes; the fixed frame includes a first positioning angle iron 1, the first positioning angle iron 1 is fixedly connected to the second first positioning angle iron 2 through the first connecting angle iron 3 and the second connecting angle iron 4, and a number of connecting long holes are provided at both ends of the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to the shim template by bolts at the connecting long holes, and a number of positioning long holes are provided between the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to a number of positioners at the positioning long holes by bolts; the first positioning angle iron 1 and the second first positioning angle iron 2 are parallel to each other, and the first connecting angle iron 3 and the second connecting angle iron 4 are parallel to each other. As Figure 2As shown, several positioners include a tapered steel tube 5, one end of the tapered steel tube 5 is fixedly connected to a capping steel plate 6, and the other end of the tapered steel tube 5 is fixedly connected to a bottom sealing steel plate 7. The capping steel plate 6 and the bottom sealing steel plate 7 are provided to prevent concrete from entering the tapered steel tube 5 during pouring. The capping steel plate 6 is fixed to the fixed frame at the positioning long hole by bolts, and a release agent layer 8 is coated on the outer surface of the tapered steel tube 5 to facilitate demoulding after the concrete pouring is completed; the diameter of the tapered steel tube 5 gradually decreases from the capping steel plate 6 to the bottom sealing steel plate 7, so that the tapered steel tube 5 can be removed from the pad stone concrete; several connecting long holes are opened along the length of the pad stone template, and the length of several connecting long holes is greater than the screw diameter of the bolt, so that the first positioning angle iron 1 and the second first positioning angle iron 2 are installed at the long holes at both ends. Fine-tuning is performed along the inner length; several positioning long holes are opened along the short direction of the pad stone template, and the length of several positioning long holes is greater than the screw diameter of the bolt, so that the positioner can be fine-tuned along the short direction in the positioning long hole between the first positioning angle iron 1 and the second first positioning angle iron 2; a first rangefinder 9 is provided at the connection between the first positioning angle iron 1 and the first connecting angle iron 3, and the angle between the ray direction of the first rangefinder 9 and the first positioning angle iron 1 is 45°; a second rangefinder 10 is provided at the connection between the first positioning angle iron 1 and the second connecting angle iron 4, and the angle between the ray direction of the second rangefinder 10 and the first positioning angle iron 1 is 45°, which is convenient for measuring the distance along the diagonal line of the fixed frame through the first rangefinder 9 and the second rangefinder 10, and performing the final precise positioning adjustment through the distance.

[0022] Example 1

[0023] The embedded hole positioning device for railway simply supported box beam support proposed in this embodiment is as follows: Figure 1 As shown, it includes a fixed frame, which is provided with a plurality of connecting long holes and a plurality of positioning long holes. The fixed frame is fixedly connected to the pad stone template at the plurality of connecting long holes by bolts, and the fixed frame is connected to a plurality of positioners at the plurality of positioning long holes by bolts.

[0024] Example 2

[0025] The embedded hole positioning device for railway simply supported box beam support proposed in this embodiment is as follows: Figure 1As shown, it includes a fixed frame, which is provided with a plurality of connecting long holes and a plurality of positioning long holes. The fixed frame is fixedly connected to the pad stone template at the plurality of connecting long holes by bolts, and the fixed frame is connected to a plurality of positioners at the plurality of positioning long holes by bolts; the fixed frame includes a first positioning angle iron 1, the first positioning angle iron 1 is fixedly connected to the second first positioning angle iron 2 through the first connecting angle iron 3 and the second connecting angle iron 4, a plurality of connecting long holes are provided at both ends of the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to the pad stone template at the connecting long holes by bolts, a plurality of positioning long holes are provided between the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to a plurality of positioners at the positioning long holes by bolts; the first positioning angle iron 1 and the second first positioning angle iron 2 are parallel to each other, and the first connecting angle iron 3 and the second connecting angle iron 4 are parallel to each other.

[0026] Example 3

[0027] The embedded hole positioning device for railway simply supported box beam support proposed in this embodiment is as follows: Figure 1 As shown, it includes a fixed frame, which is provided with a number of connecting long holes and a number of positioning long holes. The fixed frame is fixedly connected to the shim template by bolts at the several connecting long holes, and the fixed frame is connected to a number of positioners by bolts at the several positioning long holes; the fixed frame includes a first positioning angle iron 1, the first positioning angle iron 1 is fixedly connected to the second first positioning angle iron 2 through the first connecting angle iron 3 and the second connecting angle iron 4, and a number of connecting long holes are provided at both ends of the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to the shim template by bolts at the connecting long holes, and a number of positioning long holes are provided between the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to a number of positioners at the positioning long holes by bolts; the first positioning angle iron 1 and the second first positioning angle iron 2 are parallel to each other, and the first connecting angle iron 3 and the second connecting angle iron 4 are parallel to each other. As Figure 2 As shown, several positioners include a conical steel tube 5, one end of the conical steel tube 5 is fixedly connected to a top steel plate 6, and the other end of the conical steel tube 5 is fixedly connected to a bottom steel plate 7. The top steel plate 6 is fixedly connected to the fixed frame at the positioning long hole by bolts, and the outer surface of the conical steel tube 5 is coated with a release agent layer 8.

[0028] Example 4

[0029] The embedded hole positioning device for railway simply supported box beam support proposed in this embodiment is as follows: Figure 1As shown, it includes a fixed frame, which is provided with a number of connecting long holes and a number of positioning long holes. The fixed frame is fixedly connected to the shim template by bolts at the several connecting long holes, and the fixed frame is connected to a number of positioners by bolts at the several positioning long holes; the fixed frame includes a first positioning angle iron 1, the first positioning angle iron 1 is fixedly connected to the second first positioning angle iron 2 through the first connecting angle iron 3 and the second connecting angle iron 4, and a number of connecting long holes are provided at both ends of the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to the shim template by bolts at the connecting long holes, and a number of positioning long holes are provided between the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to a number of positioners at the positioning long holes by bolts; the first positioning angle iron 1 and the second first positioning angle iron 2 are parallel to each other, and the first connecting angle iron 3 and the second connecting angle iron 4 are parallel to each other. As Figure 2 As shown, several positioners include a conical steel tube 5, one end of the conical steel tube 5 is fixedly connected to a top steel plate 6, and the other end of the conical steel tube 5 is fixedly connected to a bottom steel plate 7. The top steel plate 6 is fixed to the fixed frame at the positioning long hole by bolts, and a release agent layer 8 is coated on the outer surface of the conical steel tube 5; the diameter of the conical steel tube 5 gradually decreases from the top steel plate 6 to the bottom steel plate 7.

[0030] Example 5

[0031] The embedded hole positioning device for railway simply supported box beam support proposed in this embodiment is as follows: Figure 1 As shown, it includes a fixed frame, which is provided with a number of connecting long holes and a number of positioning long holes. The fixed frame is fixedly connected to the shim template by bolts at the several connecting long holes, and the fixed frame is connected to a number of positioners by bolts at the several positioning long holes; the fixed frame includes a first positioning angle iron 1, the first positioning angle iron 1 is fixedly connected to the second first positioning angle iron 2 through the first connecting angle iron 3 and the second connecting angle iron 4, and a number of connecting long holes are provided at both ends of the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to the shim template by bolts at the connecting long holes, and a number of positioning long holes are provided between the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to a number of positioners at the positioning long holes by bolts; the first positioning angle iron 1 and the second first positioning angle iron 2 are parallel to each other, and the first connecting angle iron 3 and the second connecting angle iron 4 are parallel to each other. As Figure 2As shown, several positioners include a conical steel tube 5, one end of the conical steel tube 5 is fixedly connected to a top steel plate 6, and the other end of the conical steel tube 5 is fixedly connected to a bottom steel plate 7. The top steel plate 6 is fixed to the fixed frame at the positioning long hole by bolts, and a release agent layer 8 is coated on the outer surface of the conical steel tube 5; the diameter of the conical steel tube 5 gradually decreases from the top steel plate 6 to the bottom steel plate 7; several connecting long holes are opened along the long direction of the pad stone template, and the length of several connecting long holes is greater than the screw diameter of the bolt; several positioning long holes are opened along the short direction of the pad stone template, and the length of several positioning long holes is greater than the screw diameter of the bolt.

[0032] Example 6

[0033] The embedded hole positioning device for railway simply supported box beam support proposed in this embodiment is as follows: Figure 1 As shown, it includes a fixed frame, which is provided with a number of connecting long holes and a number of positioning long holes. The fixed frame is fixedly connected to the shim template by bolts at the several connecting long holes, and the fixed frame is connected to a number of positioners by bolts at the several positioning long holes; the fixed frame includes a first positioning angle iron 1, the first positioning angle iron 1 is fixedly connected to the second first positioning angle iron 2 through the first connecting angle iron 3 and the second connecting angle iron 4, and a number of connecting long holes are provided at both ends of the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to the shim template by bolts at the connecting long holes, and a number of positioning long holes are provided between the first positioning angle iron 1 and the second first positioning angle iron 2, the first positioning angle iron 1 and the second first positioning angle iron 2 are fixed to a number of positioners at the positioning long holes by bolts; the first positioning angle iron 1 and the second first positioning angle iron 2 are parallel to each other, and the first connecting angle iron 3 and the second connecting angle iron 4 are parallel to each other. As Figure 2 As shown, several positioners all include a conical steel tube 5, one end of the conical steel tube 5 is fixedly connected to a top steel plate 6, and the other end of the conical steel tube 5 is fixedly connected to a bottom steel plate 7. The top steel plate 6 is fixed to the fixed frame at the positioning long hole by bolts, and the outer surface of the conical steel tube 5 is coated with a release agent layer 8; the diameter of the conical steel tube 5 gradually decreases from the top steel plate 6 to the bottom steel plate 7; several connecting long holes are opened along the long direction of the pad stone template, and the length of several connecting long holes is greater than the screw diameter of the bolt; several positioning long holes are opened along the short direction of the pad stone template, and the length of several positioning long holes is greater than the screw diameter of the bolt; a first rangefinder 9 is provided at the connection between the first positioning angle iron 1 and the first connecting angle iron 3, and the angle between the ray direction of the first rangefinder 9 and the first positioning angle iron 1 is 45°; a second rangefinder 10 is provided at the connection between the first positioning angle iron 1 and the second connecting angle iron 4, and the angle between the ray direction of the second rangefinder 10 and the first positioning angle iron 1 is 45°.

Claims

1. The embedded hole positioning device for railway simply supported box girder support is characterized by: The fixing frame comprises a plurality of connecting long holes and a plurality of positioning long holes, wherein the fixing frame is fixedly connected to the shim template by bolts at the plurality of connecting long holes, and the fixing frame is connected to a plurality of positioners by bolts at the plurality of positioning long holes; The fixed frame includes a first positioning angle iron (1), the first positioning angle iron (1) is fixedly connected to the second first positioning angle iron (2) through a first connecting angle iron (3) and a second connecting angle iron (4), a plurality of connecting long holes are provided at both ends of the first positioning angle iron (1) and the second first positioning angle iron (2), the first positioning angle iron (1) and the second first positioning angle iron (2) are fixedly connected to the pad stone template at the connecting long holes by bolts, a plurality of positioning long holes are provided between the first positioning angle iron (1) and the second first positioning angle iron (2), the first positioning angle iron (1) and the second first positioning angle iron (2) are fixedly connected to a plurality of positioners at the positioning long holes by bolts; The first positioning angle iron (1) and the second first positioning angle iron (2) are parallel to each other, and the first connecting angle iron (3) and the second connecting angle iron (4) are parallel to each other; Several of the positioners include a conical steel tube (5), one end of the conical steel tube (5) is fixedly connected to a top steel plate (6), the other end of the conical steel tube (5) is fixedly connected to a bottom steel plate (7), the top steel plate (6) is fixedly connected to the fixed frame at the positioning long hole by bolts, and the outer surface of the conical steel tube (5) is coated with a release agent layer (8).

2. The embedded hole positioning device for railway simply supported box beam support according to claim 1, characterized in that: The diameter of the tapered steel pipe (5) gradually decreases along the direction from the top steel plate (6) to the bottom steel plate (7).

3. The embedded hole positioning device for railway simply supported box beam support according to claim 2, characterized in that: Several of the long connecting holes are opened along the length of the pad stone template, and the lengths of several of the long connecting holes are greater than the diameters of the screw rods of the bolts.

4. The embedded hole positioning device for railway simply supported box beam support according to claim 3, characterized in that: Several of the positioning long holes are opened along the short direction of the pad stone template, and the lengths of several of the positioning long holes are greater than the diameters of the screw rods of the bolts.

5. The embedded hole positioning device for railway simply supported box beam support according to claim 4, characterized in that: A first distance meter (9) is provided at the connection between the first positioning angle iron (1) and the first connecting angle iron (3), and the angle between the ray direction of the first distance meter (9) and the first positioning angle iron (1) is 45°.

6. The embedded hole positioning device for railway simply supported box beam support according to claim 5, characterized in that: A second distance meter (10) is provided at the connection between the first positioning angle iron (1) and the second connecting angle iron (4), and the angle between the ray direction of the second distance meter (10) and the first positioning angle iron (1) is 45°.

Images