Profile steel stress monitoring device

Abstract

The utility model belongs to the technical field of steel bar meter installation, and particularly discloses a profile steel stress monitoring device which comprises a protection box and a steel bar meter installed in the protection box, the two ends of the protection box are connected with the two sides of a profile steel flange respectively, and a transverse supporting rod and a vertical supporting rod are connected into the protection box. The transverse supporting rod is perpendicular to the vertical supporting rod, the two ends of the transverse supporting rod are connected with the two opposite side walls of the protection box respectively, and one end of the vertical supporting rod is connected with the top wall of the protection box. According to the utility model, the installed steel bar meter can be protected, and the steel bar meter is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of steel reinforcement installation technology, specifically to a steel stress monitoring device. Background Technology

[0002] Currently, in tunnel support monitoring, it is necessary to use a monitoring gauge to monitor the stress of the steel arch frame. The commonly used monitoring gauge is the rebar gauge, which is used to monitor the stress of the steel arch frame.

[0003] However, when installing rebar gauges, the common process involves welding them to the web of the steel profile, exposing them to the outside. During shotcreting, these gauges are easily subjected to the enormous impact of the shotcrete, which could potentially cause irreversible damage to the gauges and thus significantly affect data monitoring. Utility Model Content

[0004] This utility model provides a steel stress monitoring device, which aims to protect the installed rebar gauge and prevent damage to it.

[0005] This utility model is achieved through the following technical solution: a steel stress monitoring device, including a protective box and a rebar gauge installed inside the protective box. The two ends of the protective box are respectively connected to both sides of the flange of the steel section. A horizontal support rod and a vertical support rod are connected inside the protective box. The horizontal support rod and the vertical support rod are arranged perpendicularly. The two ends of the horizontal support rod are respectively connected to two side walls of the protective box that are directly opposite each other. One end of the vertical support rod is connected to the top wall of the protective box.

[0006] Compared with existing technologies, this solution has the following advantages and beneficial effects:

[0007] In this solution, by setting up a protective box, the rebar gauge can be installed inside the protective box. The protective box protects the rebar gauge, thus shielding it from damage caused by the impact of sprayed concrete.

[0008] In addition, the vertical and horizontal support rods installed inside the protective box in this solution can improve the strength of the protective box, provide greater support, and reduce the compression of the protective box by the concrete, thus providing better protection for the steel reinforcement.

[0009] Furthermore, there are two transverse support rods, and the reinforcing bar is located between the two transverse support rods.

[0010] In this design, the two horizontal support rods can limit the movement of the rebar gauge on both sides, thereby improving the limiting and fixing effect of the rebar gauge and further ensuring the stability of the rebar gauge installation.

[0011] Furthermore, two vertical support rods are provided, and one side of each of the two vertical support rods is connected to one of the two horizontal support rods.

[0012] In this design, the two vertical support rods and the two horizontal support rods are connected to form a frame structure, which can further improve the support strength of the protective box.

[0013] Furthermore, the protective box is a square steel box.

[0014] This design allows the square protective box to better match the shape and structure of the steel profile, resulting in a better connection and fit between the protective box and the steel profile flange, and improving the installation accuracy of the protective box.

[0015] Furthermore, a lead wire outlet is provided on one side of the protective box.

[0016] The lead wire outlet in this solution can neatly lead out the lead wire of the rebar meter installed in the protective box.

[0017] Furthermore, the lead wire of the steel bar gauge is wrapped with a flexible tube, which extends out of the lead wire outlet.

[0018] In this solution, a flexible tube is wrapped around the lead wire of the rebar gauge. This can prevent the lead wire from being squeezed against the lead wire outlet of the protective box, which would cause the lead wire to break. At the same time, it can also protect the lead wire and prevent it from being broken during the shotcreting process.

[0019] Furthermore, the reinforcing bars are evenly distributed on both the tension side and the compression side of the steel section.

[0020] According to the project requirements, the reinforcing bars can be placed on the tension and compression sides of the steel section. This allows for the measurement of the compression and tension forces on the steel section, thus understanding its stress condition.

[0021] Furthermore, the two ends of the protective box are detachably connected to both sides of the steel flange.

[0022] In this design, the protective box is detachably connected to the steel flange. Compared to welding the protective box to the steel flange, this design avoids the high temperature generated during welding, which could affect the rebar gauge.

[0023] Furthermore, a displacement gauge for detecting the deformation of the protective box is also installed inside the protective box.

[0024] In this scheme, after installing a displacement gauge inside the protective box, it is possible to observe whether the deformation of the protective box affects the rebar gauge, thereby quickly determining the accuracy of the collected data. At the same time, it is also possible to obtain the amount of compression of the tunnel surrounding rock on the support structure. If the compression deformation is large, the support at that location can be strengthened accordingly to avoid safety accidents.

[0025] Furthermore, it also includes a controller, a temperature sensor, and a cooling unit. The temperature sensor and the cooling unit are located inside the protective box. The temperature sensor can monitor the temperature of the rebar gauge, and both the cooling unit and the temperature sensor are electrically connected to the controller.

[0026] Temperature is a crucial factor affecting the accuracy of the rebar gauge in this solution. Concrete undergoes a hydration reaction during setting, generating a heat effect. A temperature sensor and a cooling unit are installed inside the protective box to monitor the temperature of the rebar gauge at all times. When the temperature exceeds the rebar gauge's operating temperature, the controller will activate the cooling unit. When the temperature returns to normal, the controller will deactivate the cooling unit. The temperature sensor and cooling unit ensure the accuracy of the rebar gauge. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a partial structural schematic diagram of an embodiment of a steel stress monitoring device according to the present invention;

[0029] Figure 2 This is a schematic diagram of the overall structure of an embodiment of a steel stress monitoring device according to the present invention.

[0030] The attached diagram shows the markings and corresponding component names:

[0031] 1. Steel flange; 2. Protective box; 3. Lead wire outlet; 4. Horizontal support rod; 5. Vertical support rod; 6. Reinforcing bar gauge; 7. Temperature sensor; 8. Displacement gauge; 9. Cooling unit. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0033] like Figures 1-2 As shown, a steel stress monitoring device includes a protective box 2 and a rebar gauge 6 installed inside the protective box 2. The two ends of the protective box 2 are respectively connected to both sides of the steel flange 1. The two ends of the protective box 2 are connected to the steel flange 1 by bolts or welding. As one embodiment of this application, the two ends of the protective box 2 are detachably connected to both sides of the steel flange 1 by bolts, which can avoid the high temperature generated by welding from affecting the rebar gauge 6.

[0034] As one embodiment of this application, the protective box 2 is a square steel box, that is, the protective box 2 has a square structure and is made of steel, which has high strength and a higher degree of matching with the steel flange, and the connection is more stable and reliable.

[0035] The protective box 2 has a lead wire outlet 3 on one side. This outlet 3 facilitates the extraction of the lead wire from the rebar gauge 6 installed inside the protective box 2. The lead wire of the rebar gauge 6 is wrapped with a flexible tube, which extends out of the lead wire outlet 3. The flexible tube protects the lead wire from friction and compression at the outlet 3, preventing it from breaking. The lead wire from the rebar gauge 6 is also wrapped with a flexible tube and secured to the steel frame at intervals using existing latches or other fixing devices to prevent it from being broken during shotcreting. The bottom of the protective box 2 is open, facilitating the installation of components inside the protective box 2.

[0036] The protective box 2 is internally connected to a horizontal support rod 4 and a vertical support rod 5. The horizontal support rod 4 and the vertical support rod 5 are arranged perpendicularly. The two ends of the horizontal support rod 4 are respectively connected to the two side walls of the protective box 2 that are directly opposite each other. One end of the vertical support rod 5 is connected to the top wall of the protective box 2. As one embodiment of this application, both the vertical support rod 5 and the horizontal support rod 4 are welded and fixed to the protective box 2.

[0037] In one embodiment of this application, two transverse support rods 4 are provided, and the rebar gauge 6 is located between the two transverse support rods 4, that is, the rebar gauge 6 is confined between the two transverse support rods 4. According to engineering requirements, the rebar gauge 6 inside the protective box 2 is evenly distributed on both the tension and compression sides of the steel section, thus enabling the measurement of compression and tension forces on the steel section and understanding its stress condition. The rebar gauge 6 can be welded and fixed to the top wall of the protective box 2, or the rebar gauge 6 can be welded and fixed to the steel section first, and then the protective box 2 can be installed, so that the protective box 2 covers the outside of the rebar gauge 6.

[0038] Two vertical support rods 5 are provided. One side of each of the two vertical support rods 5 is welded to one of the two horizontal support rods 4. In this way, the two vertical support rods 5 and the two horizontal support rods 4 can further improve the support force and strength of the protective box 2, further reduce deformation, and provide reliable protection for the reinforcing steel bar 6.

[0039] As another implementation of this application, such as Figure 2 As shown, a displacement meter 8 is also installed inside the protective box 2 to detect the deformation of the protective box 2. By placing the displacement meter 8 inside the square steel box, it is possible to observe whether the deformation of the square protective box 2 affects the steel gauge 6, thereby quickly judging the accuracy of the collected data. At the same time, it is also possible to obtain the amount of compression of the tunnel surrounding rock on the support structure. If the compression deformation is large, the support at that part can be strengthened accordingly to avoid safety accidents.

[0040] As another implementation of this application, such as Figure 2 As shown, a steel stress monitoring device further includes a controller, a temperature sensor 7, and a cooling unit 9. The temperature sensor 7 and the cooling unit 9 are located inside a protective box 2. The temperature sensor 7 monitors the temperature of the steel reinforcement gauge 6. Both the cooling unit 9 and the temperature sensor 7 are electrically connected to the controller. The controller receives the input signal from the temperature sensor 7 and outputs a signal to control the opening and closing of the cooling unit 9 according to a preset temperature value. Both the cooling unit 9 and the temperature sensor 7 are existing technologies. The cooling unit 9 can use a heat sink, and the temperature sensor 7 uses a temperature sensor, both existing technologies.

[0041] Temperature is a crucial factor affecting the accuracy of the rebar gauge 6. Concrete undergoes a hydration reaction during setting, generating heat. A temperature sensor 7 and a cooling unit 9 are installed inside the protective box 2 to continuously monitor the temperature of the rebar gauge 6. When the monitored temperature exceeds the operating temperature of the rebar gauge 6, the controller activates the switch at the lead of the cooling unit 9, initiating the cooling device. When the temperature returns to normal, the cooling unit 9 stops operating. The temperature sensor 7 and the cooling unit 9 ensure the accuracy of the rebar gauge 6.

[0042] In another embodiment of this application, the leads of the rebar gauge 6, displacement gauge 8, temperature sensor 7, and cooling unit 9 are fixed to the steel profile at intervals, and the outside of the leads of the rebar gauge 6, displacement gauge 8, temperature sensor 7, and cooling unit 9 are all wrapped with flexible tubing to prevent the lead wires from being broken by the sprayed concrete; a flexible tubing is installed at the lead wire outlet 3 of the protective box 2, and the leads of the rebar gauge 6, displacement gauge 8, temperature sensor 7, and cooling unit 9 are all led out from the flexible tubing at the lead wire outlet 3. This can prevent the lead wires from being squeezed or rubbed at the lead wire outlet 3 of the protective box 2, thus preventing the lead wires from breaking.

[0043] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel section stress monitoring device, characterized in that, The device includes a protective box and a steel reinforcement bar installed inside the protective box. The two ends of the protective box are connected to the two sides of the steel flange, respectively. The protective box is equipped with a horizontal support rod and a vertical support rod. The horizontal support rod and the vertical support rod are set perpendicularly. The two ends of the horizontal support rod are connected to the two side walls of the protective box that are directly opposite each other, respectively. One end of the vertical support rod is connected to the top wall of the protective box.

2. The steel stress monitoring device according to claim 1, characterized in that, There are two transverse support rods, and the steel bar is located between the two transverse support rods.

3. The steel stress monitoring device according to claim 2, characterized in that, Two vertical support rods are provided, and one side of each of the two vertical support rods is connected to one of the two horizontal support rods.

4. The steel stress monitoring device according to claim 1, characterized in that, The protective box is a square steel box.

5. The steel stress monitoring device according to claim 1, characterized in that, The protective box has a lead wire outlet on one side.

6. The steel section stress monitoring device according to claim 5, characterized in that, The reinforcing bar gauge has a flexible tube wrapped around its lead wire, which extends out of the lead wire outlet.

7. The steel stress monitoring device according to claim 1, characterized in that, The steel bars are evenly distributed on both the tension side and the compression side of the steel section.

8. The steel stress monitoring device according to claim 1, characterized in that, The two ends of the protective box are detachably connected to both sides of the steel flange.

9. A steel stress monitoring device according to any one of claims 1-8, characterized in that, The protective box is also equipped with a displacement gauge to detect the deformation of the protective box.

10. A steel stress monitoring device according to any one of claims 1-8, characterized in that, It also includes a controller, a temperature sensor, and a cooling unit. The temperature sensor and the cooling unit are located inside the protective box. The temperature sensor can monitor the temperature of the steel bar gauge. Both the cooling unit and the temperature sensor are electrically connected to the controller.

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