Anti-deviation tensioning device for precast beam pouring

Abstract

The utility model relates to the technical field of precast beam construction, in particular to a precast beam pouring anti-deviation tensioning device which comprises an anti-deviation tensioning device body, a positioning tool of a 7-shaped structure is arranged on the anti-deviation tensioning device body, and a positioning plate is arranged at the end of the long edge of the positioning tool. The anti-deviation tensioning device body is further provided with a locking lug welded to the beam section fixed end mold, a tensioning screw is connected between the locking lug and the positioning tool, one end of the tensioning screw is sleeved with a first base plate and a first positioning nut, and the other end of the tensioning screw is sleeved with a second base plate and a second positioning nut. According to the precast beam pouring anti-deviation tensioning device, linear data matching is carried out through the 7-shaped positioning tool and the matched beam, the locking lug is welded to the beam section fixing end mold, the tensioning screw is arranged between the positioning tool and the locking lug, fastening connection between the matched beam and the fixing end mold is achieved, and the accuracy of cast-in-place section prefabricating linear data is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated beam construction, in particular to a prefabricated beam casting anti-deviation tensioning device. Background Art

[0002] Precast beam casting is a construction method in concrete structural engineering, mainly used for the manufacture of beams in structures such as bridges and buildings. The concrete mixture is poured into a pre-made mold (also called a formwork) and formed into a beam with a specific shape and size after it solidifies.

[0003] In the existing precast beam casting process, in order to prevent the mold from shifting due to lateral pressure or vibration during concrete pouring, it is necessary to ensure the correct position of the template through a reinforced structure to prevent displacement during pouring. However, the connection between the matching beam and the fixed end mold will cause the matching beam to shift backward due to the lateral pressure and vibration generated by pouring concrete, affecting the accuracy of the linear data of the cast-in-place segmental precast beam. Utility Model Content

[0004] The purpose of the utility model is to provide a precast beam casting anti-deviation tensioning device to solve the problem raised by the above-mentioned background technology that in the current precast beam casting construction on the market, the connection between the matching beam and the fixed end mold will cause the matching beam to shift backward due to the lateral pressure and vibration generated by pouring concrete, thereby affecting the accuracy of the linear data of the cast-in-place segmental precast beam.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a precast beam casting anti-deviation tensioning device, comprising an anti-deviation tensioning device body, the anti-deviation tensioning device body is provided with a positioning tooling with a "7"-shaped structure, and a positioning plate is provided at the end of the long side of the positioning tooling, the anti-deviation tensioning device body is also provided with a locking ear welded to the fixed end mold of the beam section, and a tensioning screw is connected between the locking ear and the positioning tooling, one end of the tensioning screw is provided with a first pad and a first positioning nut, and the other end of the tensioning screw is provided with a second pad and a second positioning nut, the first pad and the second pad are respectively close to the positioning plate and the locking ear, so that the tensioning screw connects and fixes the locking ear and the positioning plate.

[0006] Preferably, the positioning fixture is formed by bending and welding steel plates to form two rectangular structures, and reinforcement plates are welded in both rectangles of the positioning fixture.

[0007] Preferably, a side of the upper end of the positioning tool close to the positioning plate is an open structure, and at least two handles are welded to the upper end of the positioning tool.

[0008] Preferably, two locking ears are provided, and the tightening screw is clamped between the locking ears.

[0009] Preferably, a positioning sleeve is movably sleeved on the tensioning screw via a threaded structure, and an ear plate with a flat plate structure is welded and fixed to a side surface of the positioning sleeve.

[0010] Preferably, a through hole is formed on the ear plate, and a connecting nut is welded and fixed to the ear plate at the through hole.

[0011] Preferably, an adjusting screw is fixed through a connecting nut on the ear plate, and a supporting plate is clamped and fixed at the bottom of the adjusting screw.

[0012] Preferably, a groove movably engaged with the tensioning screw is formed on the positioning plate, and the thickness of the positioning plate is greater than the thickness of the steel plate of the positioning tooling.

[0013] Preferably, the first pad is disposed on the inner side of the positioning tool via an opening of the positioning tool, and the first pad is in contact with and fits the positioning tool.

[0014] Preferably, the first pad and the second pad are both square structures, and the first pad and the second pad are both movably penetrated by the tensioning screw.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the precast beam casting anti-deviation tensioning device matches the linear data with the matching beam through the "7"-shaped positioning tool, welds the locking ear to the fixed end mold of the beam segment, and sets a tensioning screw between the positioning tool and the locking ear to achieve a fastening connection between the matching beam and the fixed end mold, thereby improving the accuracy of the linear data of the cast-in-place segment prefabrication. The precast beam casting anti-deviation tensioning device sets a rotatable and adjustable positioning sleeve on the tensioning screw, so that the tensioning screw can be lifted and lowered through the positioning sleeve and connected to the support plate, thereby achieving the bottom support processing of the tensioning screw, making the tensioning screw structure stable and ensuring the tensioning force of the tensioning screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a side view of a prefabricated beam pouring anti-deviation tensioning device of the utility model;

[0017] Figure 2 This is a top view of a prefabricated beam pouring anti-deviation tensioning device of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure in which a tensioning screw and a support plate of a prefabricated beam casting anti-deviation tensioning device are connected via a positioning sleeve according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the structure in which a tensioning screw and a positioning plate of a precast beam casting anti-deviation tensioning device are connected through a first pad.

[0020] In the figure: 1. Anti-deviation tensioning device body; 2. Positioning tooling; 3. Locking ear; 4. Tensioning screw; 5. Adjusting screw; 6. Positioning sleeve; 7. Positioning plate; 8. First positioning nut; 9. Handle; 10. Second positioning nut; 11. Second pad; 12. Connecting nut; 13. Support plate; 14. Ear plate; 15. First pad; 16. Reinforcement plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4The utility model provides a technical solution: a prefabricated beam casting anti-deviation tensioning device, including an anti-deviation tensioning device body 1, a positioning tool 2 of a "7"-shaped structure is provided on the anti-deviation tensioning device body 1, the positioning tool 2 is formed by bending and welding steel plates to form two rectangular structures, and reinforcing plates 16 are welded in the two rectangles of the positioning tool 2, this structure makes the positioning tool 2 structure more stable and plays a role in basic positioning, and a positioning plate 7 is provided at the end of the long side of the positioning tool 2, and the side of the upper end of the positioning tool 2 close to the positioning plate 7 is an open structure, and at least two handles 9 are welded on the upper end of the positioning tool 2. This structure can conveniently operate the positioning tool 2 through the handles 9, so that the positioning tool 2 can be clamped on the edge of the matching beam, and the positioning tool can be used to 2 and the matching beam for linear data adjustment, the matching beam and the fixed end mold are fastened and connected as a whole, so as to improve the accuracy of the linear data of the cast-in-place prefabricated segment. The anti-deviated tensioning device body 1 is also provided with a locking ear 3 welded on the fixed end mold of the beam segment, and two locking ears 3 are provided, and the tensioning screw 4 is stuck between the locking ears 3. This structure enables one end of the tensioning screw 4 to be positioned through the locking ear 3, and the tensioning screw 4 is fixed relative to the locking ear 3 through the cooperation of the second pad 11 and the second positioning nut 10, and the tensioning screw 4 is connected between the locking ear 3 and the positioning tool 2, and a positioning sleeve 6 is movably sleeved on the tensioning screw 4 through a threaded structure, and the positioning sleeve 6 has an ear plate 14 of a flat structure welded and fixed on the side, and this structure allows the positioning sleeve 6 to rotate on the tensioning screw 4 for positioning The ear plate 14 is provided with a through hole, and the ear plate 14 is welded and fixed with a connecting nut 12 at the through hole. This structure enables the connecting nut 12 to be relatively stable with respect to the positioning sleeve 6 through the ear plate 14. One end of the tensioning screw 4 is sleeved with a first pad 15 and a first positioning nut 8, and the other end of the tensioning screw 4 is sleeved with a second pad 11 and a second positioning nut 10. The ear plate 14 is penetrated and fixed with an adjusting screw 5 at the connecting nut 12, and the bottom of the adjusting screw 5 is clamped and fixed with the supporting plate 13. This structure can be passed through. By rotating the adjusting screw 5 to adjust the distance between the support plate 13 and the ear plate 14, the relative position of the support plate 13 and the tensioning screw 4 is controlled, so that the tensioning screw 4 is in a relatively horizontal state, and the stability of the tensioning screw 4 is improved. The first pad 15 and the second pad 11 are respectively close to the positioning plate 7 and the lock ear 3, so that the tensioning screw 4 connects and fixes the lock ear 3 and the positioning plate 7. The positioning plate 7 is provided with a groove that is movably engaged with the tensioning screw 4, and the thickness of the positioning plate 7 is greater than the thickness of the steel plate of the positioning fixture 2. This structure provides a sufficiently stable supporting and positioning structure for the tensioning screw 4 through the positioning plate 7 to ensure the tensioning force of the tensioning screw 4. The first pad 15 is disposed on the inner side of the positioning fixture 2 through the opening of the positioning fixture 2, and the first pad 15 is in contact with the positioning fixture 2.This structure allows the first pad 15 to be placed in the positioning fixture 2 from the opening of the positioning fixture 2, so that one end of the tensioning screw 4 can be positioned through the positioning plate 7. The first pad 15 and the second pad 11 are both square structures, and the first pad 15 and the second pad 11 are both movably penetrated with the tensioning screw 4. This structure allows the first pad 15 and the second pad 11 to be conveniently positioned through the square structure, allowing the first pad 15 and the second pad 11 to position the first positioning nut 8 and the second positioning nut 10 respectively. When the first positioning nut 8 and the second positioning nut 10 are tightened, the spacing between the first positioning nut 8 and the second positioning nut 10 can be adjusted, so that the tensioning screw 4 can tighten the locking ear 3 and the positioning fixture 2. Since the locking ear 3 is welded on the fixed end mold of the beam section, the positioning fixture 2 is clamped relative to the matching beam through the "7"-shaped structure, so that after the locking ear 3 and the positioning fixture 2 are tightened, the matching beam and the fixed end mold are also locked, preventing the matching beam from shifting backwards due to the side pressure and vibration of the pouring concrete during the casting process of the cast-in-place beam, thereby ensuring the quality of the project.

[0023] Working principle: When using the anti-deviated tensioning device for casting precast beams, first, respectively put the first pad 15 and the second pad 11 on the tensioning screw 4, and then screw the first positioning nut 8 and the second positioning nut 10 on the tensioning screw 4, and when fixing the template for casting the precast beam, weld the locking ear 3 to the fixed end mold of the beam section, and then clamp the tensioning screw 4 between the locking ears 3, the second positioning nut 10 is close to the second pad 11, and the second pad 11 is close to the locking ear 3, the first pad 15 is clamped into the positioning fixture 2 from the upper end opening of the positioning fixture 2, and the tensioning screw 4 is clamped on the positioning plate 7, and then the positioning fixture 2 is taken by the handle 9 and the positioning fixture 2 is clamped relative to the matching beam through the "7"-shaped structure to complete the positioning fixture 2 and the matching beam. The linear data of the beam is adjusted, and then the adjusting screw 5 is rotated through the positioning of the connecting nut 12, and the distance between the support plate 13 and the ear plate 14 is adjusted, so that the support plate 13 supports the tensioning screw 4 to ensure that the tensioning screw 4 is installed relatively horizontally, and then the first positioning nut 8 and the second positioning nut 10 are tightened respectively, so that the positioning tooling 2 and the locking ear 3 are tightened by the tensioning screw 4 to achieve the fastening between the matching beam and the fixed end mold, so that the matching beam and the fixed end mold are connected as a whole to avoid the matching beam from shifting backwards due to the side pressure and vibration of the pouring concrete during the casting process of the cast-in-place beam. The reinforcement plate 16 is used to strengthen the structure of the positioning tooling 2 to ensure the reliable use of the main body 1 of the anti-deviation tensioning device, thereby completing a series of tasks.

[0024] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A precast beam casting anti-deviation tensioning device, comprising an anti-deviation tensioning device body (1), characterized in that: The main body (1) of the anti-deviation tensioning device is provided with a positioning fixture (2) of a "7"-shaped structure, and a positioning plate (7) is provided at the end of the long side of the positioning fixture (2). The main body (1) of the anti-deviation tensioning device is also provided with a locking ear (3) welded to the fixed end mold of the beam section, and a tensioning screw (4) is connected between the locking ear (3) and the positioning fixture (2). One end of the tensioning screw (4) is sleeved with a first pad (15) and a first positioning nut (8), and the other end of the tensioning screw (4) is sleeved with a second pad (11) and a second positioning nut (10). The first pad (15) and the second pad (11) are respectively close to the positioning plate (7) and the locking ear (3), so that the tensioning screw (4) connects and fixes the locking ear (3) and the positioning plate (7).

2. The precast beam casting anti-deviating tensioning device according to claim 1 is characterized in that: The positioning fixture (2) is formed by bending and welding steel plates to form two rectangular structures, and reinforcing plates (16) are welded and engaged in the two rectangles of the positioning fixture (2).

3. The precast beam casting anti-deviating tensioning device according to claim 1 is characterized in that: The upper end of the positioning tool (2) is provided with an open structure on one side close to the positioning plate (7), and at least two handles (9) are welded to the upper end of the positioning tool (2).

4. The precast beam casting anti-deviating tensioning device according to claim 1, characterized in that: The locking ears (3) are provided with two, and the tightening screw (4) is clamped between the locking ears (3).

5. The precast beam casting anti-deviating tensioning device according to claim 1, characterized in that: The tightening screw rod (4) is provided with a positioning sleeve (6) movably sleeved via a threaded structure, and an ear plate (14) of a flat plate structure is welded and fixed to the side surface of the positioning sleeve (6).

6. The precast beam casting anti-deviation tensioning device according to claim 5, characterized in that: The ear plate (14) is provided with a through hole, and a connecting nut (12) is welded and fixed to the ear plate (14) at the through hole.

7. The precast beam casting anti-deviating tensioning device according to claim 6, characterized in that: An adjusting screw rod (5) is fixedly passed through the ear plate (14) via a connecting nut (12), and a supporting plate (13) is clamped and fixedly connected to the bottom of the adjusting screw rod (5).

8. The precast beam casting anti-deviating tensioning device according to claim 1, characterized in that: The positioning plate (7) is provided with a groove for movably engaging with the tensioning screw (4), and the thickness of the positioning plate (7) is greater than the thickness of the steel plate of the positioning tool (2).

9. The precast beam casting anti-deviating tensioning device according to claim 8, characterized in that: The first pad (15) is disposed inside the positioning tool (2) through an opening of the positioning tool (2), and the first pad (15) is in contact and fit with the positioning tool (2).

10. The precast beam casting anti-deviating tensioning device according to claim 1, characterized in that: The first pad (15) and the second pad (11) are both square structures, and the first pad (15) and the second pad (11) are both movably penetrated by the tensioning screw rod (4).

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