Elevated bridge lifting device for road and bridge construction

Abstract

The utility model provides a viaduct lifting device for road and bridge construction, which comprises a steel pipe, the lower end of the steel pipe is sleeved with a positioning sleeve, the lower end of the positioning sleeve is provided with a base, the upper surface of the base is uniformly provided with a plurality of vertical holes, the upper sides of the vertical holes are provided with convex rings which are concentrically arranged with the vertical holes, and the convex rings are fixedly connected with the base. A straight threaded cylinder is inserted in the convex ring, a connecting ring fixedly connected with the straight threaded cylinder is arranged on the straight threaded cylinder in a sleeving manner, the connecting ring is fixedly connected with the convex ring through a plurality of connecting screws, a first supporting stud is in threaded connection with the interior of the straight threaded cylinder, and the diameter of the first supporting stud is smaller than the inner diameter of the vertical hole; a plurality of expansion pieces used for increasing the contact range of the base and the ground are evenly installed on the upper surface of the base. The steel pipe erecting device has the advantages that a steel pipe can be stably erected on the uneven ground, leveling treatment does not need to be conducted on the uneven ground, the workload is reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an elevated bridge lifting device for road and bridge construction, belonging to the technical field of road and bridge construction. Background Art

[0002] During the construction of roads and bridges, it is necessary to use steel pipes to support the formwork, so that the steel pipes are arranged vertically, wherein the upper end of the steel pipe is against the lower surface of the formwork, and the lower end of the steel pipe is in contact with the ground. Because the ground at the road and bridge construction site is bumpy, the ground under the steel pipe needs to be leveled during the steel pipe erection process. This method increases the workload of steel pipe erection and affects construction efficiency. Therefore, it is necessary to design an elevated bridge lifting device for road and bridge construction that improves construction efficiency. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an elevated bridge lifting device for road and bridge construction to solve the problems raised in the above-mentioned background technology. The utility model can stably install steel pipes on uneven ground without leveling the uneven ground, thereby reducing workload and improving construction efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: an elevated bridge lifting device for road and bridge construction includes a steel pipe, a positioning sleeve is sleeved at the lower end of the steel pipe, a base is installed at the lower end of the positioning sleeve, a plurality of vertical holes are evenly opened on the upper surface of the base, a convex ring arranged concentrically with the vertical hole is provided on the upper side of the vertical hole, the convex ring is connected and fixed to the base, a straight threaded tube is inserted in the convex ring, a connecting ring connected and fixed to the straight threaded tube is sleeved on the straight threaded tube, the connecting ring is connected and fixed to the convex ring by a plurality of connecting screws, a first support stud is threadedly connected to the straight threaded tube, the diameter of the first support stud is smaller than the inner diameter of the vertical hole, and a plurality of extension pieces for increasing the contact range of the base with the ground are evenly installed on the upper surface of the base.

[0005] Furthermore, a plurality of arcuate grooves are equidistantly provided in a circular shape on the annular side surface of the convex ring, a plurality of notches are equidistantly provided in a circular shape on the upper surface of the convex ring, the notches are communicated with the arcuate grooves, an arcuate block is inserted in the arcuate groove, a threaded hole matching with the connecting screw is provided on the upper surface of the arcuate block, a plurality of small holes aligned with the notches are equidistantly provided in a circular shape on the upper surface of the connecting ring, one end of the connecting screw passes through the small hole and the notch and is threadedly connected in the threaded hole, and there is a gap between the connecting ring and the convex ring.

[0006] Furthermore, the extension piece includes a rectangular tube, and a plurality of rectangular tubes are evenly installed on the upper surface of the base through a connecting piece, an insert plate is inserted in the rectangular tube, and a clamping screw for limiting the relative position of the insert plate and the rectangular tube is threadedly connected on the side of the upper surface of the rectangular tube away from the base, and a screw hole is opened on the side of the upper surface of the insert plate that is outside the rectangular tube, the screw hole is arranged vertically, and a second support stud with the same specification as the first support stud is threadedly connected in the screw hole.

[0007] Furthermore, a first knob head is connected and fixed to the upper end of the first supporting stud, and a second knob head is connected and fixed to the upper end of the second supporting stud.

[0008] Furthermore, one end of the first support stud away from the first knob head and one end of the second support stud away from the second knob head are both connected and fixed with a pointed head for being inserted into the ground, and one end of the second support stud away from the first knob head and one end of the second support stud away from the second knob head are both installed with a limiting ring, and the limiting ring is arranged on the upper side of the pointed head.

[0009] Furthermore, the connecting piece includes a connecting ear, and a plurality of connecting ears are evenly installed on the upper surface of the base. Two through holes are symmetrically opened on one side of the connecting ear. The side of the rectangular tube close to the connecting ear is closed, and two screw heads matching the through holes are installed on the closed end of the rectangular tube. The screw head passes through the through hole and is threadedly connected with a nut.

[0010] Furthermore, a circular hole is opened on the side of the upper surface of the rectangular tube away from the base, and an internal threaded sleeve is arranged concentrically with the circular hole just above the circular hole. The internal threaded sleeve is connected and fixed to the rectangular tube, and the clamping screw is threadedly connected in the internal threaded sleeve.

[0011] Furthermore, a plurality of reinforcing ribs are fixed in an annular shape and equidistantly on the outer surface of the lower end of the positioning sleeve, and the reinforcing ribs are connected and fixed to the base.

[0012] Furthermore, the base is a rectangular structure, and the four corners of the base are all rounded.

[0013] Beneficial effects of the utility model:

[0014] 1. Make the lower ends of multiple first support studs contact the ground. The first support studs play the role of lifting the base, so that the base can be stably placed on the uneven ground. There is no need to level the ground where the base is placed, which reduces the workload of steel pipe erection and improves the efficiency of steel pipe erection.

[0015] 2. Use connecting screws to connect the straight thread barrel and the base. When the connecting screws cannot be removed by conventional tools due to rust or other reasons, the connecting screws can be cut off by using the gap between the connecting ring and the convex ring. This provides a backup method for replacing the straight thread barrel and facilitates the reuse of the structure formed by the convex ring and the base.

[0016] 3. Adjust the length of the plug plate in the rectangular tube, so that the length of the structure formed by the plug plate and the rectangular tube changes, so that the lower end of the second support stud contacts the ground, increasing the supported range of the base and further improving the stability of the base layout, that is, improving the stability of the steel pipe erection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0018] Figure 1 A schematic diagram of the structure of an elevated bridge lifting device for road and bridge construction of the utility model;

[0019] Figure 2 It is a schematic diagram of the assembly of the connecting ears, the positioning sleeves and the base in the elevated bridge lifting device for road and bridge construction of the utility model;

[0020] Figure 3 It is a schematic diagram of the assembly of the arc block, the connecting screw, the connecting ring, the convex ring, the straight threaded cylinder and the first supporting stud in the elevated bridge lifting device for road and bridge construction of the utility model;

[0021] Figure 4 It is a schematic diagram of the assembly of the arc block, the convex ring, the connecting ring and the straight threaded cylinder in the elevated bridge lifting device for road and bridge construction of the utility model;

[0022] Figure 5 It is a schematic diagram of the assembly of the convex ring, the positioning sleeve, the rectangular tube, the plug plate and the base in the elevated bridge lifting device for road and bridge construction of the utility model;

[0023] Figure 6 It is a schematic diagram of the assembly of the insert plate and the rectangular tube in the elevated bridge lifting device for road and bridge construction of the utility model;

[0024] In the figure: 1-steel pipe, 2-positioning sleeve, 3-base, 4-first supporting stud, 5-connecting ear, 6-rectangular tube, 7-plug plate, 8-second supporting stud, 9-vertical hole, 10-through hole, 11-reinforcement rib, 12-convex ring, 13-straight threaded cylinder, 14-connecting ring, 15-connecting screw, 16-arc block, 17-limiting ring, 18-pointed head, 19-small hole, 20-threaded hole, 21-arc groove, 22-notch, 23-screw hole, 24-clamping screw, 25-screw head, 26-nut, 27-internal threaded sleeve. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] See also Figure 1 and Figure 2 The utility model provides a technical solution: an elevated bridge lifting device for road and bridge construction, including a steel pipe 1, a positioning sleeve 2 is provided at the lower end of the steel pipe 1, a base 3 is installed at the lower end of the positioning sleeve 2, the base 3 is a rectangular structure, and the four corners of the base 3 are processed with rounded corners, wherein the outer surface of the lower end of the positioning sleeve 2 is annular and equidistantly fixed with multiple reinforcing ribs 11, so that the reinforcing ribs 11 are connected and fixed to the base 3, the mechanical strength of the connection between the positioning sleeve 2 and the base 3 is improved, the lower end of the steel pipe 1 is inserted in the positioning sleeve 2, and the steel pipe 1 and the base 3 are plugged in.

[0027] See also Figure 1-Figure 3 The upper surface of the base 3 is evenly provided with a plurality of vertical holes 9, and a convex ring 12 is arranged concentrically with the vertical hole 9 on the upper side of the vertical hole 9, and the convex ring 12 is connected and fixed to the base 3, and a straight threaded tube 13 is inserted in the convex ring 12, and a connecting ring 14 connected and fixed to the straight threaded tube 13 is sleeved on the straight threaded tube 13, and the connecting ring 14 is connected and fixed to the convex ring 12 through a plurality of connecting screws 15, and the straight threaded tube 13 is internally threadedly connected with a first supporting stud 4, and the upper end of the first supporting stud 4 is connected and fixed with a first knob head, and the diameter of the first supporting stud 4 is smaller than the inner diameter of the vertical hole 9. When the ground on which the base 3 is located is uneven, the first supporting studs 4 in the plurality of straight threaded tubes 13 are screwed so that the lower ends of the plurality of first supporting studs 4 are in contact with the ground. At this time, the first supporting stud 4 plays the role of lifting the base 3, so that the base 3 can be stably placed on the bumpy ground, and there is no need to level the ground on which the base 3 is placed, thereby reducing the workload of erecting the steel pipe 1 and improving the efficiency of erecting the steel pipe 1.

[0028] See also Figure 1 , Figure 3 , Figure 4 and Figure 5The convex ring 12 has a plurality of arc grooves 21 formed in an annular manner and equidistantly on its annular side surface, a plurality of notches 22 formed in an annular manner and equidistantly on its upper surface, the notches 22 communicate with the arc groove 21, an arc block 16 is inserted in the arc groove 21, a threaded hole 20 matching the connecting screw 15 is formed on the upper surface of the arc block 16, a plurality of small holes 19 aligned with the notches 22 are formed in an annular manner and equidistantly on its upper surface of the connecting ring 14, one end of the connecting screw 15 passes through the small hole 19 and the notch 22 and is threadedly connected in the threaded hole 20, a gap exists between the connecting ring 14 and the convex ring 12, so that the arc block 16 with the threaded hole 20 is inserted in the arc groove 21 of the convex ring 12, so that the arc block 16 and the convex ring 12 are plugged in, so that the straight thread barrel 1 3 is inserted into the convex ring 12. At this time, there is a gap between the connecting ring 14 and the convex ring 12, so that the connecting screw 15 passes through the small hole 19 and the notch 22 and is screwed into the threaded hole 20 to complete the assembly of the straight threaded tube 13 and the base 3. On the one hand, the convex ring 12 can partially increase the thickness of the base 3 where the connecting screw 15 is installed, without increasing the thickness of the base 3 as a whole. When the connecting screw 15 cannot be disassembled by conventional tools due to rust or other reasons, the connecting screw 15 can be cut off by using the gap between the connecting ring 14 and the convex ring 12, which provides a backup method for replacing the straight threaded tube 13, so that the arc block 16 with the remaining connecting screw 15 can be taken out from the arc groove 21 and replaced, which is convenient for the reuse of the structure formed by the convex ring 12 and the base 3.

[0029] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 A plurality of connecting ears 5 are evenly installed on the upper surface of the base 3, and a rectangular tube 6 is provided on one side of the plurality of connecting ears 5. Two through holes 10 are symmetrically opened on one side of the connecting ear 5. The side of the rectangular tube 6 close to the connecting ear 5 is closed. Two screw heads 25 matching the through holes 10 are installed on the closed end of the rectangular tube 6, so that the screw heads 25 pass through the through holes 10 and are threadedly connected with nuts 26 to complete the assembly of the rectangular tube 6 and the base 3. A plug plate 7 is inserted in the rectangular tube 6, and a circular hole is opened on the side of the upper surface of the rectangular tube 6 away from the base 3. An internal threaded sleeve 27 arranged concentrically with the circular hole is provided directly above the circular hole. The internal threaded sleeve 27 is connected and fixed to the rectangular tube 6, and a clamping screw 24 used to limit the relative position of the plug plate 7 and the rectangular tube 6 is threadedly connected in the internal threaded sleeve 27 to complete the threaded connection of the clamping screw 24 and the rectangular tube 6, and improve the stability of the assembly of the clamping screw 24 and the rectangular tube 6.

[0030] See also Figure 1 , Figure 2 , Figure 5 and Figure 6A vertically arranged screw hole 23 is provided on one side of the upper surface of the plug plate 7 outside the rectangular tube 6, and a second support stud 8 with the same specification as the first support stud 4 is threadedly connected to the screw hole 23. A second knob head is connected and fixed to the upper end of the second support stud 8. An end of the first support stud 4 away from the first knob head and an end of the second support stud 8 away from the second knob head are both connected and fixed with a pointed head 18 for being inserted into the ground. A limit ring 17 is installed on an end of the second support stud 8 away from the first knob head and an end of the second support stud 8 away from the second knob head. The limit ring 17 is arranged on the upper side of the pointed head 18. The pointed head 18 facilitates the lower ends of the first supporting stud 4 and the second supporting stud 8 to be inserted into the ground, the limiting ring 17 increases the contact range of the first supporting stud 4 and the second supporting stud 8 with the ground, and the length of the plug plate 7 in the rectangular tube 6 is adjusted, so that the length of the structure formed by the plug plate 7 and the rectangular tube 6 changes, and the second supporting stud 8 is screwed into the screw hole 23 to make the lower end of the second supporting stud 8 contact the ground. At this time, the structure formed by the second supporting stud 8, the plug plate 7 and the rectangular tube 6 increases the supported range of the base 3, further improving the stability of the arrangement of the base 3, that is, improving the stability of the erection of the steel pipe 1.

[0031] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An elevated bridge lifting device for road and bridge construction, comprising a steel pipe (1), characterized in that: The lower end of the steel pipe (1) is sleeved with a positioning sleeve (2), and the lower end of the positioning sleeve (2) is installed with a base (3). The upper surface of the base (3) is evenly provided with a plurality of vertical holes (9). The upper side of the vertical hole (9) is provided with a convex ring (12) arranged concentrically with the vertical hole (9). The convex ring (12) is connected and fixed to the base (3). A straight threaded tube (13) is inserted in the convex ring (12). The straight threaded tube (13) is sleeved with a connecting ring (14) connected and fixed to the straight threaded tube (13). The connecting ring (14) is connected and fixed to the convex ring (12) through a plurality of connecting screws (15). The straight threaded tube (13) is internally threaded with a first supporting stud (4). The diameter of the first supporting stud (4) is smaller than the inner diameter of the vertical hole (9). The upper surface of the base (3) is evenly provided with a plurality of extension pieces for increasing the contact range between the base (3) and the ground.

2. The elevated bridge lifting device for road and bridge construction according to claim 1 is characterized in that: The convex ring (12) has a plurality of arc grooves (21) formed in an annular shape and equidistantly formed on the annular side surface; the convex ring (12) has a plurality of notches (22) formed in an annular shape and equidistantly formed on the upper surface; the notches (22) are communicated with the arc grooves (21); an arc block (16) is inserted in the arc groove (21); a threaded hole (20) matched with the connecting screw (15) is formed on the upper surface of the arc block (16); a plurality of small holes (19) aligned with the notches (22) are formed in an annular shape and equidistantly formed on the upper surface of the connecting ring (14); one end of the connecting screw (15) passes through the small hole (19) and the notch (22) and is threadedly connected in the threaded hole (20); and a gap exists between the connecting ring (14) and the convex ring (12).

3. The elevated bridge lifting device for road and bridge construction according to claim 1 is characterized in that: The extension piece comprises a rectangular tube (6), a plurality of rectangular tubes (6) are evenly mounted on the upper surface of the base (3) via a connecting piece, a plug plate (7) is inserted in the rectangular tube (6), a clamping screw (24) for limiting the relative position of the plug plate (7) and the rectangular tube (6) is threadedly connected on the side of the upper surface of the rectangular tube (6) away from the base (3), a screw hole (23) is provided on the side of the upper surface of the plug plate (7) outside the rectangular tube (6), the screw hole (23) is arranged vertically, and a second support stud (8) having the same specification as the first support stud (4) is threadedly connected in the screw hole (23).

4. The elevated bridge lifting device for road and bridge construction according to claim 3 is characterized in that: A first knob head is connected and fixed to the upper end of the first supporting stud (4), and a second knob head is connected and fixed to the upper end of the second supporting stud (8).

5. The elevated bridge lifting device for road and bridge construction according to claim 4 is characterized in that: One end of the first support stud (4) away from the first knob head and one end of the second support stud (8) away from the second knob head are both connected and fixed with a pointed head (18) for being inserted into the ground, and one end of the second support stud (8) away from the first knob head and one end of the second support stud (8) away from the second knob head are both installed with a limiting ring (17), and the limiting ring (17) is arranged on the upper side of the pointed head (18).

6. The elevated bridge lifting device for road and bridge construction according to claim 3 is characterized in that: The connecting piece comprises a connecting ear (5), a plurality of connecting ears (5) are evenly mounted on the upper surface of the base (3), two through holes (10) are symmetrically provided on one side of the connecting ear (5), a side of the rectangular tube (6) close to the connecting ear (5) is closed, and two screw heads (25) matching with the through holes (10) are mounted on the closed end of the rectangular tube (6), and the screw head (25) passes through the through hole (10) and is threadedly connected with a nut (26).

7. The elevated bridge lifting device for road and bridge construction according to claim 3 is characterized by: A circular hole is formed on the upper surface of the rectangular tube (6) at a side away from the base (3); an internal threaded sleeve (27) is arranged concentrically with the circular hole just above the circular hole; the internal threaded sleeve (27) is connected and fixed to the rectangular tube (6); and the clamping screw (24) is threadedly connected in the internal threaded sleeve (27).

8. The elevated bridge lifting device for road and bridge construction according to claim 1 is characterized by: The outer surface of the lower end of the positioning sleeve (2) is annularly and equidistantly fixed with a plurality of reinforcing ribs (11), and the reinforcing ribs (11) are connected and fixed to the base (3).

9. The elevated bridge lifting device for road and bridge construction according to claim 1 is characterized by: The base (3) is a rectangular structure, and the four corners of the base (3) are all processed with rounded corners.

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