Threaded steel anchor bar drawing detection device

Abstract

The utility model provides a kind of screw thread steel bar planting drawing detection device, it is related to screw thread steel bar planting drawing detection technical field, including telescopic electric jar and tension sensor, the top of tension sensor is equipped with clamping fixed component, the clamping fixed component includes the mount rack fixedly connected in the top of tension sensor, the inboard of mount rack is provided with fixed plate, the inner wall of mount rack is threadedly connected with base, the side of base is equipped with electric telescopic rod, the horizontal position of fixed plate is adjusted by electric telescopic rod, subsequently, motor drives bidirectional screw rod rotation, the relative movement of two groups of nut on it along axial with screw rod rotation, corresponding fixed plate is driven to synchronize close, to realize the stable clamping of screw thread steel, by adjusting the distance between nut, different diameter reinforcing steel bar can be flexibly adapted, the setting of rubber pad further enhances friction and plays protective effect, to effectively improve the adaptability of detection device to multiple specifications screw thread steel.

Description

Technical Field

[0001] This utility model relates to the field of pull-out testing technology for rebar anchoring, and in particular to a pull-out testing device for rebar anchoring. Background Technology

[0002] Rebar anchoring typically refers to an engineering technique in which threaded steel bars (i.e., rebar) are inserted into pre-drilled holes in a concrete structure after drilling and cleaning the holes, and then the holes are filled with a special structural adhesive (such as epoxy resin-based adhesive) to fix the steel bars. This technique is mainly used for building structure reinforcement, repair, and connection between new and old concrete.

[0003] Existing rebar pull-out testing devices are typically designed for specific specifications of rebar, resulting in poor adaptability when faced with rebars of different diameters and lengths, making it difficult to meet the testing needs of various specifications.

[0004] To address these issues, we have developed a rebar pull-out testing device. Utility Model Content

[0005] This invention provides a rebar pull-out detection device, which solves the problems mentioned in the background art.

[0006] This utility model provides a rebar pull-out detection device, including a telescopic electric cylinder and a tension sensor. The top of the tension sensor is equipped with a clamping and fixing assembly, which includes a mounting bracket fixedly connected to the top of the tension sensor, and a fixing plate is provided on the inner side of the mounting bracket.

[0007] Preferably, the inner wall of the mounting bracket is threadedly connected to a base, and an electric telescopic rod is installed on one side of the base.

[0008] Preferably, a base is installed on the other side of the electric telescopic rod, and a motor is installed on the outer side of the base.

[0009] Preferably, a coupling is connected to one side of the motor via a key, and a double-ended screw is connected to the other side of the coupling via a key. A nut is fitted onto the surface of the double-ended screw, and the nut is fixedly connected to the fixing plate. A rubber pad is adhered to the surface of the fixing plate.

[0010] Preferably, sliders are fixedly connected to both sides of the nut, and a groove is provided on the inner side of the base.

[0011] Preferably, the telescopic electric cylinder and the tension sensor are connected by a thread, and a controller is mounted on the surface of the telescopic electric cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The horizontal position of the fixing plate is adjusted by the electric telescopic rod. Then, the motor drives the bidirectional screw to rotate. The two sets of nuts on it move relative to each other along the axial direction as the screw rotates, causing the corresponding fixing plates to move closer synchronously, thereby achieving stable clamping of the rebar. By adjusting the distance between the nuts, it can flexibly adapt to steel bars of different diameters. The rubber pad further enhances the friction and plays a protective role, thus effectively improving the adaptability of the detection device to various specifications of rebar. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model; Figure 2 This is a schematic diagram of the overall side view structure proposed in this utility model; Figure 3 This is a schematic diagram of the clamping and fixing component structure proposed in this utility model.

[0015] In the diagram: 1. Telescopic electric cylinder; 2. Tension sensor; 3. Clamping and fixing assembly; 301. Mounting bracket; 302. Base; 303. Electric telescopic rod; 304. Base; 305. Motor; 306. Coupling; 307. Double-acting screw; 308. Nut; 309. Fixing plate; 310. Rubber pad; 311. Slider; 312. Slide groove; 4. Controller. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0017] See Figure 1-3 A rebar pull-out detection device includes a telescopic electric cylinder 1 and a tension sensor 2. A clamping and fixing assembly 3 is installed on the top of the tension sensor 2. The clamping and fixing assembly 3 includes a mounting bracket 301 fixedly connected to the top of the tension sensor 2. A fixing plate 309 is provided on the inner side of the mounting bracket 301, and the rebar is clamped by the fixing plate 309.

[0018] Furthermore, the inner wall of the mounting bracket 301 is threadedly connected to a base 302, and an electric telescopic rod 303 is installed on one side of the base 302. The horizontal position of the base 304 is adjusted by the electric telescopic rod 303, thereby adjusting the horizontal position of the fixing plate 309.

[0019] Furthermore, a base 304 is installed on the other side of the electric telescopic rod 303, and a motor 305 is installed on the outside of the base 304. The motor 305 controls the bidirectional screw 307 to rotate through the coupling 306.

[0020] Furthermore, a coupling 306 is connected to one side of the motor 305 by a flat key, and a double-acting screw 307 is connected to the other side of the coupling 306 by a flat key. A nut 308 is fitted onto the surface of the double-acting screw 307, and the nut 308 is fixedly connected to the fixing plate 309. A rubber pad 310 is adhered to the surface of the fixing plate 309. Two sets of nuts 308 and fixing plates 309 are provided on the surface of the double-acting screw 307, and they are arranged in a mirror image.

[0021] Furthermore, sliders 311 are fixedly connected to both sides of the nut 308, and a groove 312 is provided on the inner side of the base 304. The nut 308 slides through the sliders 311 and the groove 312.

[0022] Furthermore, the telescopic electric cylinder 1 and the tension sensor 2 are connected by a thread, and a controller 4 is mounted on the surface of the telescopic electric cylinder 1. The telescopic electric cylinder 1 provides linear motion to simulate pulling force.

[0023] As can be seen from the above technical solution, during use, the horizontal position of the fixing plate 309 is adjusted by the electric telescopic rod 303 so that the fixing plate 309 is located on both sides of the threaded steel. Then, the motor 305 drives the bidirectional screw 307 to rotate, and the two sets of nuts 308 on it move relative to each other along the axial direction as the bidirectional screw 307 rotates, causing the corresponding fixing plate 309 to move closer synchronously, thereby achieving stable clamping of the threaded steel. Then, the telescopic electric cylinder 1 retracts inward to achieve the pull-out test of the threaded steel. During this process, the tension sensor 2 monitors the tension data in real time. When the predetermined tension is reached, the data is transmitted to the controller 4, so that the controller 4 controls the telescopic electric cylinder 1 to prevent excessive tension. This completes the use of a threaded steel rebar pull-out detection device.

[0024] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the applications disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0025] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The above embodiments of this utility model do not constitute a limitation on the scope of protection of this utility model.

Claims

1. A rebar pull-out detection device, comprising a telescopic electric cylinder (1) and a tension sensor (2), characterized in that, The top of the tension sensor (2) is equipped with a clamping and fixing assembly (3), which includes a mounting bracket (301) fixedly connected to the top of the tension sensor (2), and a fixing plate (309) is provided on the inner side of the mounting bracket (301).

2. The rebar pull-out testing device according to claim 1, characterized in that, The mounting bracket (301) has a base (302) threadedly connected to its inner wall, and an electric telescopic rod (303) is installed on one side of the base (302).

3. The rebar pull-out testing device according to claim 2, characterized in that, A base (304) is installed on the other side of the electric telescopic rod (303), and a motor (305) is installed on the outside of the base (304).

4. The rebar pull-out testing device according to claim 3, characterized in that, A coupling (306) is connected to one side of the motor (305) via a key, and a double-ended screw (307) is connected to the other side of the coupling (306) via a key. A nut (308) is fitted onto the surface of the double-ended screw (307), and the nut (308) is fixedly connected to the fixing plate (309). A rubber pad (310) is adhered to the surface of the fixing plate (309).

5. The rebar pull-out testing device according to claim 4, characterized in that, The nut (308) is fixedly connected to two sides by sliders (311), and the base (304) has a groove (312) on its inner side.

6. The rebar pull-out testing device according to claim 1, characterized in that, The telescopic electric cylinder (1) and the tension sensor (2) are connected by a thread, and a controller (4) is installed on the surface of the telescopic electric cylinder (1).

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