Vertical prestressed reinforcement detection device for bridge concrete construction

Abstract

The utility model discloses a vertical prestressed reinforcement detection device for bridge concrete construction, which comprises a concrete block, a vertical reinforcement is fixedly arranged in the middle of the inner side of the concrete block, and a fixing mechanism for fixing a sensor is arranged at the upper end of the vertical reinforcement. The fixing mechanism comprises a fixed sleeve, elastic connecting pieces, clamping jaws, a movable sleeve and an extrusion head, the upper end of the outer side surface of the vertical steel bar is sleeved with the fixed sleeve, the multiple elastic connecting pieces are evenly and fixedly arranged on the outer side surface of the upper end of the fixed sleeve, and the clamping jaws are fixedly arranged at the upper ends of the elastic connecting pieces; the sensor for detecting the vertical prestressed reinforcing steel bar is improved according to the prior art, the sensor for detecting the vertical prestressed reinforcing steel bar can be conveniently and quickly fixed on the outer side surface of the vertical reinforcing steel bar, and the sensor is small in overall size, small in influence on the reinforcing steel bar and high in practicability. Therefore, the subsequent detection result is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar detection devices, and particularly to a vertical prestressed steel bar detection device for bridge concrete construction. Background Technique

[0002] When constructing bridges in the prior art, it is often necessary to detect the vertical prestressed steel bars of the used steel bars. Common methods include the strain gauge sensor detection method: This method involves pasting strain gauges onto the prestressed steel bars and detecting the deformation of the strain gauges during the tensioning process, and then calculating the stress of the prestressed steel bars according to Hooke's law. This method can monitor the stress changes of prestressed steel bars in real time and continuously, but the cost is relatively high and the accuracy is affected by various factors.

[0003] The electromagnetic sensor test method: uses a miniature electromagnetic sensor to test the change in magnetic flux, and then calculates the actual tension force based on the relationship between the vertical prestressed tendon tension force, temperature, and the change in magnetic flux. This method requires accurately measuring the change law of the magnetic flux of the steel bar material with the steel bar stress and temperature, but the on-site test cost is relatively high and it is difficult to be widely applied.

[0004] When fixing sensors in such detection devices in the prior art, such as a vertical prestressed steel bar detection device for bridge concrete construction with the Chinese patent application number 201822109004.X, various detection sensors are fixed on the surface of the steel bar to be detected by means of three-jaw cards during use, and then the prestress detection work of the steel bar is carried out. However, the entire three-jaw card has a relatively large volume, and when fixed on the steel bar surface, it will significantly increase the weight at the uppermost end of the steel bar surface, making the steel bar more likely to shake, thus easily affecting the subsequent detection work. Therefore, an improved vertical prestressed steel bar detection device for bridge concrete construction is needed to solve this problem. Content of the Utility Model

[0005] The purpose of the utility model is to provide a vertical prestressed steel bar detection device for bridge concrete construction to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: A vertical prestressed steel bar detection device for bridge concrete construction, including a concrete block, a vertical steel bar is fixedly arranged in the middle of the inner side of the concrete block, a fixing mechanism for fixing a sensor is arranged at the upper end of the vertical steel bar, the fixing mechanism includes a fixing sleeve, an elastic connecting piece, a claw, a movable sleeve, and an extrusion head. A fixing sleeve is sleeved on the outer surface of the upper end of the vertical steel bar. A plurality of elastic connecting pieces are uniformly and fixedly arranged on the outer surface of the upper end of the fixing sleeve. A claw is fixedly arranged at the upper end of the elastic connecting piece. A movable sleeve is sleeved on the outer surface of the fixing sleeve. An extrusion head is fixedly arranged at the upper end of the movable sleeve. Detection sensors are fixedly arranged on both sides of the lower end of the fixing sleeve. The utility model has good use effect, improves the prior art, and can conveniently and quickly fix the sensor for detecting vertical prestressed steel bars on the outer surface of the vertical steel bar.

[0007] Preferably, a thread is provided on the outer surface of the fixing sleeve, and the movable sleeve is movably screwed on the outer surface of the fixing sleeve through the thread. By rotating the movable sleeve through the thread, the movable sleeve can be driven to move up and down, so that the elastic connecting piece can be squeezed by the extrusion head, and the elastic connecting piece can be tightened to firmly clamp and fix on the outer surface of the vertical steel bar through the claw.

[0008] Preferably, anti-slip grooves are arranged on the outer surface of the movable sleeve, and the anti-slip grooves can facilitate the staff to rotate the movable sleeve.

[0009] Preferably, a chamfer is arranged inside the extrusion head, and the chamfer can facilitate the extrusion of the claw to tighten the elastic card.

[0010] Preferably, the middle part inside the fixing sleeve is hollow, and the hollow fixing sleeve can facilitate sleeving on the outer surface of the vertical steel bar.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. When the vertical steel bar needs to be detected in the utility model, the fixing sleeve can be sleeved on the outer surface of the vertical steel bar. Then, keeping the fixing sleeve stationary, the movable sleeve is rotated through the thread to make the movable sleeve move downward. At this time, the claw can be squeezed by the extrusion head and multiple elastic cards are bent and tightened, so that the claw can tightly clamp on the outer surface of the vertical steel bar. In this way, the fixing of the fixing sleeve and the lower sensor can be completed. In this way, the device of the utility model can conveniently and quickly fix the sensor for detecting vertical prestressed steel bars on the outer surface of the vertical steel bar.

[0013] 2. When the utility model is used, the overall volume is small, and the influence on the steel bar itself is small, so that the subsequent detection results will not be affected. Description of the Drawings

[0014] Figure 1 This is a schematic diagram of the overall structure of a vertical prestressed steel bar detection device for bridge concrete construction according to the present utility model;

[0015] Figure 2 This is a structural view of the fixing mechanism in a vertical prestressed steel bar detection device for bridge concrete construction according to the present utility model;

[0016] Figure 3 This is a vertical prestressed steel bar detection device for bridge concrete construction according to the present utility model Figure 2 sectional view.

[0017] In the figure: 1, concrete block; 2, vertical steel bar; 3, fixed sleeve; 4, elastic connecting piece; 5, claw; 6, movable sleeve; 7, extrusion head; 8, thread; 9, anti-slip groove; 10, chamfer; 11, detection sensor. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3 , the present utility model provides a technical solution: a vertical prestressed steel bar detection device for bridge concrete construction, including a concrete block 1, a vertical steel bar 2 is fixedly arranged in the middle of the inner side of the concrete block 1, a fixing mechanism for fixing a sensor is arranged at the upper end of the vertical steel bar 2, the fixing mechanism includes a fixed sleeve 3, an elastic connecting piece 4, a claw 5, a movable sleeve 6, and an extrusion head 7. A fixed sleeve 3 is sleeved on the outer surface of the upper end of the vertical steel bar 2. A plurality of elastic connecting pieces 4 are uniformly fixedly arranged on the outer surface of the upper end of the fixed sleeve 3. A claw 5 is fixedly arranged at the upper end of the elastic connecting piece 4. A movable sleeve 6 is sleeved on the outer surface of the fixed sleeve 3. An extrusion head 7 is fixedly arranged at the upper end of the movable sleeve 6. Detection sensors 11 are fixedly arranged on both sides of the lower end of the fixed sleeve 3.

[0020] Threads 8 are provided on the outer surface of the fixed sleeve 3. The movable sleeve 6 is movably screwed on the outer surface of the fixed sleeve 3 through the threads 8. By rotating the movable sleeve 6 through the threads 8, the movable sleeve 6 can be driven to move up and down, so that the elastic connecting piece 4 can be squeezed by the extrusion head 7, so that the elastic connecting piece 4 is tightened to firmly clamp and fix on the outer surface of the vertical steel bar 2 through the claw 5;

[0021] The outer surface of the movable sleeve 6 is provided with anti-slip grooves 9, through which the staff can conveniently rotate the movable sleeve 6;

[0022] The inside of the extrusion head 7 is provided with a chamfer 10, through which the clamping claws 5 can be conveniently extruded, so that the elastic cards are tightened.

[0023] The middle part of the inner side of the fixed sleeve 3 is hollow, through which it can be conveniently sleeved on the outer surface of the vertical steel bar 2.

[0024] Working principle: When using this device and it is necessary to detect the vertical steel bar 2, the fixed sleeve 3 can be sleeved on the outer surface of the vertical steel bar 2. Subsequently, keep the fixed sleeve 3 stationary, and then rotate the movable sleeve 6 through the thread 8 to make the movable sleeve 6 move downward. At this time, the extrusion head 7 can extrude the clamping claws 5 and make the plurality of elastic cards bend and tighten, so that the clamping claws 5 can tightly hold the outer surface of the vertical steel bar 2. In this way, the fixation of the fixed sleeve 3 and the lower sensor can be completed. In this way, this device can conveniently and quickly fix the sensor for detecting the vertical prestressed steel bar on the outer surface of the vertical steel bar 2;

[0025] And when this device is used, the overall volume is small, and the influence on the steel bar itself is small, so that the subsequent detection results will not be affected.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical prestressed steel bar detection device for bridge concrete construction, comprising a concrete block (1), characterized in that: A vertical steel bar (2) is fixedly arranged in the middle inside the concrete block (1). A fixing mechanism for fixing a sensor is arranged at the upper end of the vertical steel bar (2). The fixing mechanism includes a fixing sleeve (3), an elastic connecting piece (4), a claw (5), a movable sleeve (6), and an extrusion head (7). A fixing sleeve (3) is sleeved on the outer surface of the upper end of the vertical steel bar (2). A plurality of elastic connecting pieces (4) are evenly and fixedly arranged on the outer surface of the upper end of the fixing sleeve (3). A claw (5) is fixedly arranged at the upper end of the elastic connecting piece (4). A movable sleeve (6) is sleeved on the outer surface of the fixing sleeve (3). An extrusion head (7) is fixedly arranged at the upper end of the movable sleeve (6). Detection sensors (11) are fixedly arranged on both sides of the lower end of the fixing sleeve (3).

2. The vertical prestressed steel bar detection device for bridge concrete construction according to claim 1, wherein: Threads (8) are formed on the outer surface of the fixing sleeve (3). The movable sleeve (6) is movably screwed on the outer surface of the fixing sleeve (3) through the threads (8).

3. The vertical prestressed steel bar detection device for bridge concrete construction according to claim 1, characterized in that: Anti-slip grooves (9) are arranged on the outer surface of the movable sleeve (6).

4. The vertical prestressed steel bar detection device for bridge concrete construction according to claim 1, characterized in that: A chamfer (10) is arranged inside the extrusion head (7).

5. The vertical prestressed steel bar detection device for bridge concrete construction according to claim 1, characterized in that: The middle part inside the fixing sleeve (3) is hollow.

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