Bridge construction prestress tensioning and fixing device

Abstract

The utility model relates to the technical field of bridge construction devices, in particular to a bridge construction prestress tension fixing device which comprises a first fixing ring and a second fixing ring, first mounting holes are formed in the two sides of the outer portion of the first fixing ring, and a first limiting ring and a second limiting ring are arranged on the two sides of the inner portion of the first fixing ring respectively. First mounting shafts are fixedly connected to one side of the outer wall of the first limiting ring and one side of the outer wall of the second limiting ring, first nuts are arranged on one sides of the two first mounting shafts, a plurality of second mounting holes are formed in the outer wall of the second fixing ring, and a connecting ring is arranged in the second fixing ring; and a plurality of placing grooves are formed in one side of the connecting ring. The reinforcing steel bar fixing device has the advantages that the first limiting ring and the second limiting ring are arranged to tension the internal reinforcing steel bars towards the two sides respectively, the reinforcing steel bars are fixed, and the reinforcing steel bars can be inserted into the containing grooves respectively through the arrangement of the containing grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction devices, in particular to a prestressed tensioning and fixing device for bridge construction. Background Art

[0002] Prestressing is the process of adding tension to a component in advance, so that the prestressed component is subjected to compressive stress, which in turn causes it to undergo a certain deformation to cope with the loads on the structure itself, including the load of the component's own weight, wind load, snow load, earthquake load, etc. The prestressed beam is often fixed by anchors, and anchors refer to the permanent anchoring devices used in prestressed concrete. They are anchoring tools used in post-tensioned structures or components to maintain the tension of the prestressed tendons and transfer them to the concrete. They are also called prestressed anchors.

[0003] Prestressed steel bars are widely used in bridge construction. Before the engineering structure components are subjected to external loads, pre-tensioning stress is applied to the steel strands in the tension module to improve the bending resistance and stiffness of the components. However, due to the large number and long length of fine-rolled steel bars, a fixing device is required for reinforcement. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to provide a prestressed tensioning and fixing device for bridge construction to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a prestressed tensioning fixing device for bridge construction, including a first fixing ring and a second fixing ring, both sides of the outside of the first fixing ring are provided with first mounting holes, both sides of the inside of the first fixing ring are provided with first limiting rings and second limiting rings respectively, one side of the outer wall of the first limiting ring and the second limiting ring is fixedly connected with a first mounting shaft, one side of the two first mounting shafts is provided with a first nut, a plurality of second mounting holes are provided on the outer wall of the second fixing ring, a connecting ring is provided inside the second fixing ring, a plurality of placement grooves are provided on one side of the connecting ring, and the inner parts of the plurality of placement grooves are provided with a plurality of The parts are all fixedly connected with a first fixing block, several of the first fixing blocks are provided with connecting grooves on both sides, several of the connecting grooves are provided with limiting shafts inside, several of the limiting shafts are sleeved with springs on the outer walls, one ends of several of the limiting shafts are fixedly connected with a clamping block, several of the placement grooves are provided with a second fixing block inside, several of the second fixing blocks are provided with clamping grooves on both sides, the second fixing ring and one side of the first fixing ring are fixedly connected with a mounting ring, two third mounting holes are provided on both sides of the two mounting rings, several of the third mounting holes are provided with a second mounting shaft on one side, and two second nuts are provided on one side of several of the second mounting shafts.

[0007] The technical effect achieved by adopting the above scheme is: the first installation shaft is respectively inserted into the first installation hole, so that the first limiting ring and the second limiting ring are located inside the first fixing ring, the connecting ring is placed in the second fixing ring, the bolts are respectively threaded into the second installation hole and the fourth installation hole, so that the connecting ring is connected to the second fixing ring, and then the outside of the plurality of steel bars are respectively inserted into the placement groove and the inside of the first limiting ring and the second limiting ring, at this time, the plurality of steel bars are tightly contacted with the plurality of first fixing blocks, and then the clamping block is squeezed into the connecting groove by extruding the limiting shaft and the spring, and then the plurality of second fixing blocks are clamped into the other side of the placement groove, at this time, the clamping block will rebound and be clamped into the clamping groove, at this time, the first fixing block and the second fixing block are tightly fixed to the outside of the steel bar, the first nut is respectively threadedly connected to one side of the outside of the first installation shaft, the first limiting ring and the second limiting ring are pulled closer to both sides to tighten and fix the steel bar, and then the second installation shaft is respectively inserted into the third installation hole, and the second nut is respectively threadedly connected to both sides of the outside of the second installation shaft to connect the first fixing ring and the second fixing ring.

[0008] Preferably, any of the above schemes is that the outsides of the two first installation shafts are respectively inserted into the insides of the two first installation holes, and the two first nuts are respectively threadedly connected to one side of the outsides of the two first installation shafts.

[0009] The technical effect achieved by adopting the above solution is: the first installation shaft is respectively inserted into the first installation hole, so that the first limiting ring and the second limiting ring are located inside the first fixing ring.

[0010] Preferably, any of the above schemes has fourth mounting holes formed on the outside of the connecting ring, the connecting ring is connected to the second fixing ring by bolts, and the outsides of several second fixing blocks are respectively snapped into the insides of several placement grooves.

[0011] The technical effect achieved by adopting the above scheme is: putting the connecting ring into the second fixing ring, threading the bolts into the second mounting hole and the fourth mounting hole respectively, so that the connecting ring is connected to the second fixing ring.

[0012] Preferably, any of the above schemes is that a plurality of the limit shafts are slidably connected to the clamping blocks via respective connecting grooves.

[0013] The technical effect achieved by adopting the above solution is: the clamping block is squeezed into the connecting groove by squeezing the limit shaft and the spring.

[0014] Preferably, in any of the above schemes, a plurality of the clamping blocks are respectively clamped in the interior of the clamping slot.

[0015] The technical effect achieved by adopting the above scheme is: by squeezing the limiting shaft and the spring, the clamping block is squeezed into the connecting groove, and then a plurality of second fixed blocks are clamped into the other side of the placement groove. At this time, the clamping block will rebound and be clamped into the clamping groove. At this time, the first fixed block and the second fixed block are tightly fixed to the outside of the steel bar.

[0016] Preferably, in any of the above schemes, a plurality of the second installation shafts are respectively inserted into the interior of the third installation holes, and a plurality of the second nuts are respectively threadedly connected to one side of the exterior of the plurality of the second installation shafts.

[0017] The technical effect achieved by adopting the above scheme is: the second installation shaft is respectively inserted into the third installation hole, and the second nut is respectively threadedly connected to the two sides of the outside of the second installation shaft to connect the first fixing ring and the second fixing ring.

[0018] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0019] The device tightens the internal steel bars to both sides respectively by setting a first limiting ring and a second limiting ring to fix the steel bars, and each steel bar can be inserted into a plurality of placement grooves by setting a first fixing block and a second fixing block for clamping, thereby improving the stability of the reinforcement, and then the connection is completed by setting a mounting ring to connect the first fixing ring and the second fixing ring, making the connection more firm, thereby solving the problem of using a large number of fine-rolled steel bars and a long length that is inconvenient to fix during bridge construction.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 It is a schematic diagram of the structure according to the first viewing angle of an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the second viewing angle according to an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the structure according to a third viewing angle of an embodiment of the utility model;

[0025] Figure 4 is a schematic diagram of a structure according to a fourth viewing angle of an embodiment of the utility model;

[0026] Figure 5 is a schematic diagram of a fifth viewing angle structure according to an embodiment of the utility model;

[0027] Figure 6 It is a schematic diagram of the sixth viewing angle structure according to an embodiment of the utility model.

[0028] In the figure: 1-first fixing ring, 2-second fixing ring, 3-first limiting ring, 4-second limiting ring, 5-first mounting shaft, 6-first nut, 7-connecting ring, 8-first fixing block, 9-connecting groove, 10-limiting shaft, 11-spring, 12-clamping block, 13-second fixing block, 14-clamping groove, 15-second mounting shaft, 16-second nut, 17-mounting ring. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0030] like Figures 1 to 6As shown, a prestressed tensioning fixing device for bridge construction comprises a first fixing ring 1 and a second fixing ring 2, both sides of the outside of the first fixing ring are provided with first mounting holes, both sides of the inside of the first fixing ring 1 are provided with first limiting rings 3 and second limiting rings 4 respectively, one side of the outer wall of the first limiting ring 3 and the second limiting ring 4 is fixedly connected with a first mounting shaft 5, one side of the two first mounting shafts 5 is provided with a first nut 6, a plurality of second mounting holes are provided on the outer wall of the second fixing ring 2, a connecting ring 7 is provided inside the second fixing ring 2, a plurality of placement grooves are provided on one side of the connecting ring 7, and the interiors of the plurality of placement grooves are fixedly connected A first fixing block 8 is connected, connecting grooves 9 are provided on both sides of several first fixing blocks 8, limiting shafts 10 are provided inside several connecting grooves 9, springs 11 are sleeved on the outer walls of several limiting shafts 10, one end of several limiting shafts 10 is fixedly connected with a clamping block 12, a second fixing block 13 is provided inside several placement grooves, clamping grooves 14 are provided on both sides of several second fixing blocks 13, mounting rings 17 are fixedly connected to one side of the second fixing ring 2 and the first fixing ring 1, two third mounting holes are provided on both sides of the two mounting rings 17, a second mounting shaft 15 is provided on one side of several third mounting holes, and several first fixing rings 17 are fixedly connected to one side of the second fixing ring 2 and the first fixing ring 1. Two second nuts 16 are provided on one side of the two mounting shafts 15, so that it is convenient to insert the first mounting shaft 5 into the first mounting hole respectively, so that the first limiting ring 3 and the second limiting ring 4 are located inside the first fixing ring 1, put the connecting ring 7 into the second fixing ring 2, and thread the bolts 701 into the second mounting hole and the fourth mounting hole respectively, so that the connecting ring 7 is connected to the second fixing ring 2, and then the outsides of the plurality of steel bars are respectively inserted into the placement grooves and the first limiting ring 3 and the second limiting ring 4. At this time, the plurality of steel bars are in tight contact with the plurality of first fixing blocks 8, and then the limiting shaft 10 and the spring 11 are squeezed to make The clamping block 12 is squeezed into the connecting groove 9, and then the second fixing blocks 13 are clamped into the other side of the placement groove. At this time, the clamping block 12 will rebound and be clamped into the clamping groove 14. At this time, the first fixing block 8 and the second fixing block 13 are tightly fixed to the outside of the steel bar, and the first nut 6 is threadedly connected to one side of the outside of the first installation shaft 5, and the first limiting ring 3 and the second limiting ring 4 are pulled toward both sides to tighten and fix the steel bar, and then the second installation shaft 15 is respectively inserted into the third installation hole, and the second nut 16 is threadedly connected to both sides of the outside of the second installation shaft 15 to connect the first fixing ring and the second fixing ring 2.

[0031] As an optional technical solution of the present utility model, the outsides of the two first mounting shafts 5 are respectively inserted into the insides of the two first mounting holes, and the two first nuts 6 are respectively threadedly connected to one side of the outsides of the two first mounting shafts 5, so that it is convenient to insert the first mounting shafts 5 into the first mounting holes respectively, so that the first limiting ring 3 and the second limiting ring 4 are located inside the first fixing ring 1.

[0032] As an optional technical solution of the present invention, fourth mounting holes are respectively opened on the outside of the connecting ring 7, and the connecting ring 7 is connected to the second fixing ring 2 by bolts 701. The outsides of several second fixing blocks 13 are respectively clamped in the insides of several placement grooves, so that it is convenient to place the connecting ring 7 into the second fixing ring 2, and the bolts 701 are respectively threaded into the second mounting hole and the fourth mounting hole to connect the connecting ring 7 to the second fixing ring 2.

[0033] As an optional technical solution of the utility model, a plurality of limit shafts 10 and the clamping blocks 12 are respectively connected to the connecting grooves 9 in a sliding connection, so that it is convenient to squeeze the clamping blocks 12 into the connecting grooves 9 by squeezing the limit shafts 10 and the springs 11 .

[0034] As an optional technical solution of the utility model, a plurality of snap-in blocks 12 are snap-into the inside of the snap-in slot 14 respectively, so that it is convenient to squeeze the snap-in blocks 12 into the connecting slot 9 by squeezing the limiting shaft 10 and the spring 11, and then make a plurality of second fixing blocks 13 snap-into the other side of the placement slot. At this time, the snap-in blocks 12 will rebound and snap into the snap-in slot 14. At this time, the first fixing blocks 8 and the second fixing blocks 13 tightly fix the outside of the steel bar.

[0035] As an optional technical solution of the present utility model, a plurality of second mounting shafts 15 are respectively inserted into the interior of the third mounting holes, and a plurality of second nuts 16 are respectively threadedly connected to one side of the exterior of the plurality of second mounting shafts 15. This facilitates the second mounting shafts 15 to be respectively inserted into the third mounting holes, and the second nuts 16 are respectively threadedly connected to both sides of the exterior of the second mounting shafts 15 to connect the first fixing ring and the second fixing ring 2.

[0036] A prestressed tensioning and fixing device for bridge construction, the working principle is as follows:

[0037] Insert the first mounting shaft 5 into the first mounting hole respectively, so that the first limiting ring 3 and the second limiting ring 4 are located inside the first fixing ring 1, put the connecting ring 7 into the second fixing ring 2, and thread the bolt 701 into the second mounting hole and the fourth mounting hole respectively, so that the connecting ring 7 is connected to the second fixing ring 2, and then insert the outside of the plurality of steel bars into the placement groove and the inside of the first limiting ring 3 and the second limiting ring 4 respectively, at this time, the plurality of steel bars are in tight contact with the plurality of first fixing blocks 8, and then squeeze the limiting shaft 10 and the spring 11 to squeeze the clamping block 12 into the connecting groove 9 , and then make several second fixing blocks 13 snap into the other side of the placement groove, at this time the snap-in block 12 will rebound and snap into the slot 14, at this time the first fixing block 8 and the second fixing block 13 are tightly fixed to the outside of the steel bar, the first nut 6 is respectively threadedly connected to one side of the outside of the first installation shaft 5, the first limiting ring 3 and the second limiting ring 4 are pulled closer to both sides to tighten and fix the steel bar, and then the second installation shaft 15 is respectively inserted into the third installation hole, the second nut 16 is respectively threadedly connected to both sides of the outside of the second installation shaft 15 to connect the first fixing ring and the second fixing ring 2.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The device tightens the internal steel bars to both sides by setting a first limiting ring 3 and a second limiting ring 4 to fix the steel bars. By setting a plurality of placement grooves, each steel bar can be inserted into each groove. Then, by setting a first fixing block 8 and a second fixing block 13 for clamping, the outside of each steel bar is fixed, thereby improving the stability of the reinforcement. Then, by setting a mounting ring 17 to connect the first fixing ring 1 and the second fixing ring 2, the connection is completed, making the connection more firm, thereby solving the problem of using a large number of high-quality rolled steel bars and a long length that is inconvenient to fix during bridge construction.

Claims

1. A prestressed tensioning and fixing device for bridge construction, characterized in that: The invention comprises a first fixing ring (1) and a second fixing ring (2), wherein first mounting holes are provided on both sides of the outside of the first fixing ring, a first limiting ring (3) and a second limiting ring (4) are provided on both sides of the inside of the first fixing ring (1), a first mounting shaft (5) is fixedly connected to one side of the outer wall of the first limiting ring (3) and the second limiting ring (4), a first nut (6) is provided on one side of the two first mounting shafts (5), a plurality of second mounting holes are provided on the outer wall of the second fixing ring (2), a connecting ring (7) is provided inside the second fixing ring (2), a plurality of placement grooves are provided on one side of the connecting ring (7), a plurality of first fixing blocks (8) are fixedly connected to the inside of the plurality of placement grooves, and a plurality of first fixing blocks (8) are provided on both sides. A connecting groove (9) is provided, a plurality of the connecting grooves (9) are provided with a limit shaft (10), the outer walls of the plurality of the limit shafts (10) are sleeved with a spring (11), one end of the plurality of the limit shafts (10) is fixedly connected with a clamping block (12), a plurality of the placement grooves are provided with a second fixing block (13), both sides of the plurality of the second fixing blocks (13) are provided with a clamping groove (14), one side of the second fixing ring (2) and the first fixing ring (1) are fixedly connected with a mounting ring (17), both sides of the two mounting rings (17) are provided with two third mounting holes, one side of the plurality of the third mounting holes is provided with a second mounting shaft (15), and one side of the plurality of the second mounting shafts (15) is provided with two second nuts (16).

2. A prestressed tensioning and fixing device for bridge construction according to claim 1, characterized in that: The exteriors of the two first installation shafts (5) are respectively inserted into the interiors of the two first installation holes, and the two first nuts (6) are respectively threadedly connected to one side of the exteriors of the two first installation shafts (5).

3. A prestressed tensioning and fixing device for bridge construction according to claim 2, characterized in that: The connecting ring (7) is provided with fourth mounting holes on its exterior. The connecting ring (7) is connected to the second fixing ring (2) via bolts (701). The exteriors of a plurality of the second fixing blocks (13) are respectively snap-fitted to the interiors of a plurality of placement grooves.

4. A prestressed tensioning and fixing device for bridge construction according to claim 3, characterized in that: The plurality of limit shafts (10) and the clamping blocks (12) are respectively connected to the grooves (9) in a slidable manner.

5. A prestressed tensioning and fixing device for bridge construction according to claim 4, characterized in that: The plurality of clamping blocks (12) are respectively clamped inside the clamping slots (14).

6. A prestressed tensioning and fixing device for bridge construction according to claim 5, characterized in that: The plurality of second installation shafts (15) are respectively inserted into the interior of the third installation holes, and the plurality of second nuts (16) are respectively threadedly connected to one side of the exterior of the plurality of second installation shafts (15).

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