Tensioning device for carbon fiber component

Abstract

The utility model discloses a tensioning device for a carbon fiber component, which comprises a base, an anchoring part is fixed above the base, the other end of the anchoring part is hinged with a T-shaped plate, a transverse plate of the T-shaped plate is connected with a tensioning mechanism through a plurality of tensioning screws, and the tensioning mechanism is connected with the carbon fiber component. The tensioning device has the advantages that the structure is simple and practical, the tensioning device can adapt to the tensioning conditions of carbon fiber components at various angles through the connection mode that the tensioning mechanism is hinged to the anchoring part, and the applicability is wide; the limiting column, the jack and the anti-falling nut on the outer side of the jack in the device can be detached after tensioning is completed, so that turnover use is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge prestressing reinforcement, in particular to a tensioning device for carbon fiber components. Background Art

[0002] Carbon fiber component tensioning is widely used in the external prestressing reinforcement of bridge beams during renovation and expansion. Prestressing uses traditional linear tensioning anchoring devices. This method has a relatively single application scenario and is only suitable for beam reinforcement with flat bottom and sides. Traditional carbon fiber cables or plate tensioning devices are limited by the structural form of the bridge beam. For example, in order to protect the tensioning device from environmental influences and increase its service life, carbon fiber components are tensioned in box beams with variable cross-sections. At this time, due to the variable cross-section problem in the box beam, the beam surface will have a certain curvature, and the linear tensioning device is not applicable. Utility Model Content

[0003] In order to overcome the problem that the prior art is only applicable to prestressing on the plane of the beam, the present utility model provides a tensioning device for carbon fiber components. The technical solution is as follows:

[0004] A tensioning device for a carbon fiber component comprises a base, an anchor is fixed on the top of the base, a T-shaped plate is hinged on the other end of the anchor, a transverse plate of the T-shaped plate is connected to a tensioning mechanism through a plurality of tensioning screws, and the tensioning mechanism is connected to the carbon fiber component.

[0005] Furthermore, the tensioning mechanism includes a tensioning limit piece slidably connected to the tensioning screw, and a side of the tensioning limit piece away from the anchor is pin-connected to the carbon fiber component through a pin shaft. A limiting nut is provided on the tensioning screw, and the limiting nut can resist a side of the tensioning limit piece connected to the carbon fiber cable or plate. A limiting column is slidably provided on the tensioning screw, and a U-shaped groove is provided on the side of the limiting column. The limiting nut is located inside the U-shaped groove, and one end of the limit column opening resists the side of the tensioning limit piece. A jack is fixedly provided on the tensioning screw, and one end of the movable shaft of the jack resists the side of one end of the limiting column.

[0006] Furthermore, anti-dropping nuts are provided at both ends of the tensioning screw.

[0007] Furthermore, a pressure sensor is provided between the cross plate of the T-shaped plate and the anti-dropping nut on the tensioning screw, and the real-time tension applied by the device can be conveniently known through the pressure sensor.

[0008] Furthermore, a plurality of vertical plates are fixed to the lower end surface of the base, and the vertical plates are pre-embedded in the bridge beam body.

[0009] Furthermore, the anchor comprises a pull rod fixed to the upper end surface of the base, one end of the pull rod is hinged to the vertical plate of the T-shaped plate, the other end of the pull rod is vertically provided with a fixing rod, and the inner side surface of the fixing rod is fixedly connected to the side surface of one end of the base.

[0010] Furthermore, reinforcing rods are fixed to both side surfaces of the pull rod, and the reinforcing rods are connected to the base bolts.

[0011] Furthermore, the tensioning limiter is a cross-shaped steel.

[0012] Furthermore, a pad is provided between the limiting column and the movable shaft of the jack and between the jack and the anti-dropping nut.

[0013] Furthermore, a reinforcement plate is fixed to the upper end surface of the base by bolts, and the reinforcement plate is located between the base and the anchor.

[0014] The beneficial effects of the technical solution provided by the embodiment of the utility model are: the device is not only simple and practical in structure, but also can adapt to the tensioning conditions of carbon fiber components at various angles through the hinged connection between the tensioning mechanism and the anchor, and has a wide range of applicability;

[0015] The limiting column, the jack and the anti-dropping nut on the outer side of the jack in the device can be disassembled after the tensioning is completed, so as to facilitate turnover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings used in the embodiments. Obviously, the drawings listed below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 It is a front view schematic diagram of an embodiment of the utility model;

[0019] Figure 3 It is a top view schematic diagram of an embodiment of the utility model.

[0020] In the accompanying drawings, the components represented by each number are listed as follows: 1. Base; 101. Vertical plate; 2. Anchor; 201. Pull rod; 202. Fixing rod; 203. Reinforcing rod; 3. T-plate; 4. Tensioning screw; 5. Tensioning mechanism; 501. Tensioning limiter; 502. Limit nut; 503. Limit column; 504. Jack; 6. Carbon fiber component; 7. Anti-slip nut; 8. Pressure sensor; 9. Pad; 10. Reinforcing plate. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] See also Figures 1 to 3 The embodiment of the utility model provides a tensioning device for a carbon fiber component, including a base 1, an anchor 2 is fixed on the top of the base 1, a T-shaped plate 3 is hinged on the other end of the anchor 2, the cross plate of the T-shaped plate 3 is connected to a tensioning mechanism 5 through a plurality of tensioning screws 4, and a carbon fiber component 6 is connected to the tensioning mechanism 5.

[0023] The tensioning mechanism 5 includes a tensioning limit piece 501 slidably connected to the tensioning screw 4. The side of the tensioning limit piece 501 away from the anchor 2 is pin-connected to the carbon fiber component 6 through a pin shaft. A limiting nut 502 is arranged on the tensioning screw 4, and the limiting nut 502 can resist the side of the tensioning limit piece 501 connected to the carbon fiber component 6. A limiting column 503 is slidably arranged on the tensioning screw 4. A U-shaped groove is provided on the side of the limiting column 503. The limiting nut 502 is located inside the U-shaped groove, and one end of the opening of the limiting column 503 resists the side of the tensioning limit piece 501. A jack 504 is fixedly arranged on the tensioning screw 4, and one end of the movable shaft of the jack 504 resists the side of one end of the limiting column 503.

[0024] Anti-dropout nuts 7 are provided at both ends of the tensioning screw rod 4 ; a pressure sensor 8 is provided between the cross plate of the T-shaped plate 3 and the anti-dropout nuts 7 of the tensioning screw rod 4 .

[0025] A plurality of vertical plates 101 are fixed to the lower end surface of the base 1 ; a reinforcing plate 10 is fixed to the upper end surface of the base 1 by bolts, and the reinforcing plate 10 is located between the base 1 and the anchor 2 .

[0026] The anchor 2 includes a pull rod 201 fixed to the upper end surface of the base 1, one end of the pull rod 201 is hinged to the vertical plate of the T-shaped plate 3, and a fixing rod 202 is vertically arranged at the other end of the pull rod 201, and the inner side surface of the fixing rod 202 is fixedly connected to the side surface of one end of the base 1.

[0027] Reinforcement rods 203 are fixed to both side surfaces of the pull rod 201 , and the reinforcement rods 203 are connected to the base 1 by bolts.

[0028] The tensioning limiter 501 is a cross-shaped steel.

[0029] A backing plate 9 is provided between the limiting column 503 and the movable shaft of the jack 504 and between the jack 504 and the anti-dropping nut 7 .

[0030] Instructions for use: When using the device, the vertical plate 101 and the fixing rod 202 of the base 1 are pre-buried in the beam of the bridge, and then the T-shaped plate 3 is installed on the anchor 2, and the tensioning screw 4 is installed on the T-shaped plate 3, and then the pressure sensor 8, the tensioning mechanism 5, the limit column 503, the jack 504, the pad 9 and the anti-slip nut 7 are installed on the tensioning screw 4, and then the carbon fiber component 6 is connected to one side of the tensioning mechanism 5 through the pin shaft, and then the jack is used to fix the carbon fiber component 6 on the side of the tensioning mechanism 5. The 504 multi-carbon fiber component 6 is tensioned. After the tensioning operation is completed, the limiting nut 502 can be screwed to make it tightly against the tensioning mechanism 5, and then the jack 504, the anti-dropping nut on the outside of the jack 504, the pad 9 and the limiting column 503 can be disassembled and used in rotation; when the tensioning operation is needed, the jack 504, the anti-dropping nut on the outside of the jack 504, the pad 9 and the limiting column 503 will be installed again, and then the jack can be operated for tensioning.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A tensioning device for a carbon fiber component, characterized in that: The invention comprises a base (1), an anchor (2) being fixed on the top of the base (1), a T-shaped plate (3) being hingedly connected to the other end of the anchor (2), a transverse plate of the T-shaped plate (3) being connected to a tensioning mechanism (5) via a plurality of tensioning screws (4), and a carbon fiber component (6) being connected to the tensioning mechanism (5).

2. The tensioning device for a carbon fiber member according to claim 1, characterized in that: The tensioning mechanism (5) comprises a tensioning limiter (501) slidably connected to the tensioning screw rod (4); a side of the tensioning limiter (501) away from the anchor member (2) is pin-connected to the carbon fiber component (6) via a pin shaft; a limit nut (502) is provided on the tensioning screw rod (4), and the limit nut (502) can abut against a side of the tensioning limiter (501) connected to the carbon fiber component (6); a limit column (503) is slidably provided on the tensioning screw rod (4); a U-shaped groove is provided on a side of the limit column (503); the limit nut (502) is located inside the U-shaped groove, and an open end of the limit column (503) abuts against a side of the tensioning limiter (501); a jack (504) is fixedly provided on the tensioning screw rod (4), and one end of a movable shaft of the jack (504) abuts against a side of one end of the limit column (503).

3. The tensioning device for a carbon fiber member according to claim 2, characterized in that: Anti-drop nuts (7) are provided at both ends of the tensioning screw rod (4).

4. The tensioning device for a carbon fiber member according to claim 3, characterized in that: The tensioning screw rod (4) is provided with a pressure sensor (8) between the transverse plate of the T-shaped plate (3) and the anti-dropping nut (7).

5. The tensioning device for a carbon fiber member according to claim 1, characterized in that: A plurality of vertical plates (101) are fixed to the lower end surface of the base (1).

6. The tensioning device for a carbon fiber member according to claim 1, characterized in that: The anchor (2) comprises a pull rod (201) fixed to the upper end surface of the base (1), one end of the pull rod (201) being hinged to the vertical plate of the T-shaped plate (3), and a fixing rod (202) being vertically arranged at the other end of the pull rod (201), and the inner side surface of the fixing rod (202) being fixedly connected to the side surface of one end of the base (1).

7. The tensioning device for a carbon fiber member according to claim 6, characterized in that: Reinforcement rods (203) are fixed to both side surfaces of the pull rod (201), and the reinforcement rods (203) are bolted to the base (1).

8. The tensioning device for a carbon fiber member according to claim 2, characterized in that: The tensioning limiter (501) is a cross-shaped steel.

9. The tensioning device for a carbon fiber member according to claim 3, characterized in that: A pad (9) is provided between the limiting column (503) and the movable shaft of the jack (504), and between the jack (504) and the anti-drop nut (7).

10. The tensioning device for a carbon fiber member according to claim 1, characterized in that: A reinforcing plate (10) is fixed to the upper end surface of the base (1) by means of bolts, and the reinforcing plate (10) is located between the base (1) and the anchor (2).

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