A prestressed tendon tension detection device
By setting a semicircular limit cover and limit assembly on the clamp of the tension detection device, the problem of prestressed ribs not being completely horizontal and vertical during detection is solved, and the accuracy of tension detection is improved.
Patent Information
- Application Number
- CN202420920918.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-29
AI Technical Summary
When using tension detection devices, workers may make the two ends of the prestressed ribs not completely horizontally and perpendicular, resulting in incomplete verticality during pulling, which in turn leads to errors in the tension detection results.
A prestressed rib tension detection device is designed. By setting a semicircular limit cover and limit assembly on the clamp, the prestressed ribs remain horizontally and vertically when clamped, and avoid deviation.
It effectively avoids the offset of the prestressed ribs during clamping, ensures that the prestressed ribs are completely pulled horizontally and vertically when pulling, and improves the accuracy of tension detection.
Smart Images
Figure CN222704436U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tension detection devices, in particular to a prestressed reinforcement material tension detection device. Background Art
[0002] The tension detection device is used to detect the tension of prestressed tendons. The prestressed tendons are made of single or multiple steel bars, steel wires or steel strands. The tension detection device consists of upper and lower bases, round rods, mobile platforms, cylinders, tension sensors, slides, bidirectional screws, motors, and clamps. When performing tension detection on the prestressed tendons, workers start the cylinder on the upper base to move the mobile platform to a suitable position on the round rod, start the motor to rotate the bidirectional screw, and make the clamps on both sides close to each other to clamp the prestressed tendons. Then start the cylinder to pull the prestressed tendons. At the same time, the tension sensor detects the size of the tension. After the prestressed tendons are broken by the tension, the detection is stopped, and the tension of the prestressed tendons is reached.
[0003] The inventors discovered in their daily work that when the tension detection device is in use, because the workers use clamps to clamp the prestressed tendons, the two ends of the prestressed tendons may not be completely horizontal and vertical, so that when the prestressed tendons are pulled, the prestressed tendons are not completely pulled in the horizontal and vertical directions, which leads to errors in the prestressed tendon tension detection results. Utility Model Content
[0004] The utility model aims to solve the problem that in actual use, when workers use clamps to clamp the prestressed tendons, the two ends of the prestressed tendons may not be completely horizontal and vertical, so that when the prestressed tendons are pulled, the prestressed tendons are not completely pulled in the horizontal and vertical directions, which leads to errors in the prestressed tendon tension detection results. A prestressed tendon tension detection device is proposed to solve the problem that in actual use, when workers use clamps to clamp the prestressed tendons, the two ends of the prestressed tendons may not be completely horizontal and vertical, so that when the prestressed tendons are pulled, the prestressed tendons are not completely pulled in the horizontal and vertical directions, which leads to errors in the prestressed tendon tension detection results.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a prestressed tendon tension detection device, comprising two upper and lower distributed bases, a round rod fixedly connected between the bases, the arc surface of the round rod is provided with a protective component, the arc surface of the round rod is slidably connected with a moving platform, a cylinder is installed at the lower end of the upper base, the output end of the cylinder is fixed to the moving platform, a limiting component is provided on one side of the moving platform and the base at the lower side, a slide groove is opened at the upper end of the base, a bidirectional screw is provided on the inner wall of the slide groove, the threads at both ends of the bidirectional screw are opposite, a clamping block is slidably connected to the inner wall of the slide groove, a semicircular limiting cover is fixedly connected to the upper end of the clamping block, the clamping block is threadedly connected to the bidirectional screw, a motor 1 is installed on one side of the base, and the output end of the motor 1 is fixed to the bidirectional screw.
[0006] The effect achieved by the above components is: by setting a limit assembly, when the clamping block clamps the prestressed tendon, motor 1 is started to rotate the bidirectional screw in the slide groove, so that the clamping blocks on both sides are close to each other, and then the prestressed tendon is limited by the semicircular limit cover. Under the common limitation of the semicircular limit covers at the upper and lower ends, the upper and lower ends of the prestressed tendon are horizontal and vertical, so as to avoid the displacement of the prestressed tendon when placed on the clamping block.
[0007] Preferably, an extrusion block is provided on the inner wall of the semicircular limiting cover, a rack is slidably inserted on the arc surface of the semicircular limiting cover, the rack and the extrusion block are fixed, a driving mechanism is provided on the upper end of the clamping block, and the rack moves with the help of the driving mechanism.
[0008] The effect achieved by the above components is: through the driving mechanism, the rack starts to slide, thereby pushing the extrusion block to further limit the prestressed tendons.
[0009] Preferably, the driving mechanism comprises a mounting plate fixedly connected to the upper end of the clamping block, and the second motor is mounted on the front side of the mounting plate.
[0010] The effect achieved by the above components is: by setting the mounting plate, the second motor is limited.
[0011] Preferably, the output end of the second motor is fixedly connected with a gear, and the gear and the rack are meshed with each other.
[0012] The effects achieved by the above components are: starting the second motor drives the gear to rotate, thereby causing the rack to move under the action of the gear.
[0013] Preferably, a limiting rod is slidably inserted into the arc surface of the semicircular limiting cover, and the limiting rod is fixed to the extrusion block.
[0014] The effect achieved by the above components is: by setting the limiting rod, the extrusion block is assisted in limiting.
[0015] Preferably, the protection component comprises a moving ring slidably connected to the arc surface of the round rod, the arc surface of the moving ring is fixedly connected to a telescopic rod, and the other end of the telescopic rod is fixedly connected to a semicircular protective cover.
[0016] The effect achieved by the above components is: when protecting the prestressed tendons from tensile fracture and sputtering, the movable ring telescopic rod is dragged so that the two semicircular protective covers are combined to wrap the prestressed tendons.
[0017] Preferably, the arc surface of the semicircular protective cover is fixedly connected with a spring, and the other end of the spring is fixed to the movable ring.
[0018] The effect achieved by the above components is: the telescopic rod is reset by arranging the spring.
[0019] Preferably, a screw rod is inserted into the arc surface thread of the movable ring, and one end of the screw rod is fixedly connected to a rubber pad.
[0020] The effect achieved by the above components is: by twisting the screw rod, the rubber pad is squeezed onto the round rod, thereby fixing the moving ring.
[0021] In summary, the beneficial effects of the utility model are:
[0022] In the utility model, by setting a limit assembly, when the clamping block clamps the prestressed tendon, the motor 1 is started to rotate the bidirectional screw in the slide groove, so that the clamping blocks on both sides are close to each other, and then the prestressed tendon is limited by the semicircular limit cover. Under the common limitation of the semicircular limit covers at the upper and lower ends, the upper and lower ends of the prestressed tendon are horizontal and vertical, so as to avoid the deviation of the prestressed tendon when placed on the clamping block, and solve the problem that when the workers use the clamping block to clamp the prestressed tendon, the two ends of the prestressed tendon may not be completely horizontal and vertical, so that when the prestressed tendon is pulled, the prestressed tendon is not completely pulled in the horizontal and vertical directions, which leads to errors in the prestressed tendon tension detection results. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0024] Figure 2 It is a three-dimensional structural schematic diagram of the limiting component of the utility model;
[0025] Figure 3 For this utility model Figure 2 A is an enlarged schematic diagram of the three-dimensional structure;
[0026] Figure 4 It is a three-dimensional structural schematic diagram of the protective component of the utility model.
[0027] Legend: 1. Base; 2. Limiting assembly; 3. Protective assembly; 4. Round rod; 5. Cylinder; 6. Moving platform; 21. Slide; 22. Bidirectional screw; 23. Motor 1; 24. Clamp; 25. Semicircular limiting cover; 26. Extrusion block; 27. Rack; 28. Driving mechanism; 281. Mounting plate; 282. Motor 2; 283. Gear; 29. Limiting rod; 31. Moving ring; 32. Telescopic rod; 33. Semicircular protective cover; 34. Spring; 35. Screw. DETAILED DESCRIPTION
[0028] Reference Figure 1As shown, the utility model provides a technical solution: a prestressed tendon tension detection device includes two upper and lower distributed bases 1, a round rod 4 is fixedly connected between the bases 1, a protective component 3 is provided on the arc surface of the round rod 4, a moving platform 6 is slidably connected to the arc surface of the round rod 4, a cylinder 5 is installed at the lower end of the upper base 1, the output end of the cylinder 5 and the moving platform 6 are fixed, and a limiting component 2 is provided on one side of the moving platform 6 and the lower base 1.
[0029] The specific settings and functions of the limit component 2 and the protection component 3 are described in detail below.
[0030] Reference Figure 2 and Figure 3 As shown, in this embodiment: a slide groove 21 is provided at the upper end of the base 1, and a bidirectional screw 22 is provided on the inner wall of the slide groove 21, and the threads at both ends of the bidirectional screw 22 are opposite, and a clamping block 24 is slidably connected to the inner wall of the slide groove 21, and a semicircular limiting cover 25 is fixedly connected to the upper end of the clamping block 24, and the clamping block 24 and the bidirectional screw 22 are threadedly connected. A motor 23 is installed on one side of the base 1, and the output end of the motor 23 is fixed to the bidirectional screw 22. By setting a limiting component 2, when the clamping block 24 clamps the prestressed tendon, the motor 23 is started to rotate the bidirectional screw 22 in the slide groove 21, so that the clamping blocks 24 on both sides are close to each other, and then the prestressed tendon is limited by the semicircular limiting cover 25. Under the common limiting of the semicircular limiting covers 25 at the upper and lower ends, the upper and lower ends of the prestressed tendon are horizontally vertical, so as to avoid the prestressed tendon from being offset when placed on the clamping block 24. The inner wall of the semicircular limiting cover 25 is provided with an extruding block 26, and the semicircular limiting cover 25 A rack 27 is inserted in the circular arc surface for sliding, and the rack 27 and the extrusion block 26 are fixed. A driving mechanism 28 is provided at the upper end of the clamping block 24, and the rack 27 moves with the help of the driving mechanism 28. Through the driving mechanism 28, the rack 27 starts to slide, thereby pushing the extrusion block 26 to further limit the prestressed tendons. The driving mechanism 28 includes a mounting plate 281 fixedly connected to the upper end of the clamping block 24, and a second motor 282 is installed on the front of the mounting plate 281. By setting the mounting plate 281, the second motor 282 is limited. A gear 283 is fixedly connected to the output end of the second motor 282, and the gear 283 is meshed with the rack 27. Starting the second motor 282 drives the gear 283 to rotate, so that the rack 27 moves under the action of the gear 283. A limiting rod 29 is inserted in the circular arc surface for sliding, and the limiting rod 29 and the extrusion block 26 are fixed. By setting the limiting rod 29, the extrusion block 26 is assisted in limiting.
[0031] Reference Figure 4As shown, in this embodiment: the protection component 3 includes a moving ring 31 slidably connected to the arc surface of the round rod 4, the arc surface of the moving ring 31 is fixedly connected with a telescopic rod 32, and the other end of the telescopic rod 32 is fixedly connected with a semicircular protective cover 33. When protecting the prestressed tendon from stretching, fracture and sputtering, the moving ring 31 is dragged to stretch the telescopic rod 32 so that the two semicircular protective covers 33 are combined to wrap the prestressed tendon, the arc surface of the semicircular protective cover 33 is fixedly connected with a spring 34, and the other end of the spring 34 is fixed to the moving ring 31. By setting the spring 34, the telescopic rod 32 is reset, and a screw rod 35 is threadedly inserted into the arc surface of the moving ring 31, and one end of the screw rod 35 is fixedly connected with a rubber pad. The screw rod 35 is twisted to squeeze the rubber pad onto the round rod 4, thereby fixing the moving ring 31.
[0032] Working principle:
[0033] When testing the tension of the prestressed tendon, the worker starts the cylinder 5 on the upper base 1 to move the movable platform 6 to a suitable position on the round rod 4, starts the motor to rotate the bidirectional screw 22, and makes the clamping blocks 24 on both sides approach each other to clamp the prestressed tendon, and then starts the cylinder 5 to pull the prestressed tendon. At the same time, the tension sensor detects the magnitude of the tension. After the prestressed tendon is broken by the tension, the detection is stopped to reach the magnitude of the prestressed tendon tension. When the clamping block 24 clamps the prestressed tendon, the motor 23 is started to rotate the bidirectional screw 22 in the slide 21, so that the clamping blocks 24 on both sides approach each other, and then the prestressed tendon is limited by the semicircular limiting cover 25. Under the common limitation of the semicircular limiting covers 25 at the upper and lower ends, the upper and lower ends of the prestressed tendon are horizontal and vertical. In order to avoid the displacement of the prestressed tendon when it is placed on the clamp block 24, the driving mechanism 28 is used to make the rack 27 start to slide, thereby pushing the extrusion block 26, and further limiting the prestressed tendon. By setting the mounting plate 281, the motor 282 is limited, and the motor 282 is started to drive the gear 283 to rotate, so that the rack 27 moves under the action of the gear 283. By setting the limiting rod 29, the extrusion block 26 is assisted in limiting. When protecting the prestressed tendon from stretching, fracture and sputtering, the moving ring 31 telescopic rod 32 is dragged so that the two semicircular protective covers 33 are combined to wrap the prestressed tendon. By setting the spring 34, the telescopic rod 32 is reset, and the screw rod 35 is twisted to squeeze the rubber pad onto the round rod 4, thereby fixing the moving ring 31.
[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.
Claims
1. A prestressed steel bar tension detection device, comprising two upper and lower distributed bases (1), characterized in that: A round rod (4) is fixedly connected between the bases (1), a protective assembly (3) is provided on the arc surface of the round rod (4), a moving platform (6) is slidably connected to the arc surface of the round rod (4), a cylinder (5) is installed at the lower end of the upper base (1), the output end of the cylinder (5) and the moving platform (6) are fixed, a limiting assembly (2) is provided on one side of the moving platform (6) and the lower base (1), and a slide groove (21) is provided at the upper end of the base (1). The inner wall of the slide groove (21) is provided with a bidirectional screw (22), the threads at both ends of the bidirectional screw (22) are opposite, the inner wall of the slide groove (21) is slidably connected with a clamping block (24), the upper end of the clamping block (24) is fixedly connected with a semicircular limiting cover (25), the clamping block (24) and the bidirectional screw (22) are threadedly connected, and a motor (23) is installed on one side of the base (1), and the output end of the motor (23) is fixed to the bidirectional screw (22).
2. A prestressed reinforcement tension detection device according to claim 1, characterized in that: The inner wall of the semicircular limiting cover (25) is provided with an extrusion block (26), the arc surface of the semicircular limiting cover (25) is slidably inserted with a rack (27), the rack (27) and the extrusion block (26) are fixed, and the upper end of the clamping block (24) is provided with a driving mechanism (28), and the rack (27) moves with the help of the driving mechanism (28).
3. A prestressed reinforcement tension detection device according to claim 2, characterized in that: The driving mechanism (28) comprises a mounting plate (281) fixedly connected to the upper end of the clamping block (24), and a second motor (282) is mounted on the front side of the mounting plate (281).
4. A prestressed reinforcement tension detection device according to claim 3, characterized in that: The output end of the second motor (282) is fixedly connected with a gear (283), and the gear (283) and the rack (27) are meshed with each other.
5. A prestressed reinforcement tension detection device according to claim 4, characterized in that: A limiting rod (29) is slidably inserted into the arc surface of the semicircular limiting cover (25), and the limiting rod (29) is fixed to the extrusion block (26).
6. A prestressed reinforcement tension detection device according to claim 1, characterized in that: The protection component (3) comprises a moving ring (31) slidably connected to the arc surface of the round rod (4); the arc surface of the moving ring (31) is fixedly connected to a telescopic rod (32); and the other end of the telescopic rod (32) is fixedly connected to a semicircular protective cover (33).
7. A prestressed reinforcement tension detection device according to claim 6, characterized in that: The arc surface of the semicircular protective cover (33) is fixedly connected to a spring (34), and the other end of the spring (34) is fixed to the moving ring (31).
8. A prestressed reinforcement tension detection device according to claim 7, characterized in that: A screw rod (35) is inserted into the circular arc surface of the movable ring (31) through a threaded insert, and one end of the screw rod (35) is fixedly connected to a rubber pad.