Prefabricated steel bar truss floor support plate quality detection mechanism and detection method

Abstract

The application discloses a prefabricated steel bar truss floor support plate quality detection mechanism, which comprises a base, a vibration exciter is installed on the base, a steel bar connecting structure one is fixedly installed on the top of the vibration exciter, side supporting legs are rotationally installed at the bottom of the base and are of telescopic structures, an infrared detection module is installed on the side supporting legs, and a steel bar connecting structure two is installed at the end of the side supporting legs. The application can well distinguish unqualified steel bar truss floor support plates and timely return to work by separately setting an additional special detection mechanism to uniformly detect the stability of the steel bar truss floor support plates, thereby improving product quality and avoiding construction accidents caused by poor stability of the steel bar truss floor support plates.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated steel bar truss floor support plate quality detection mechanism and detection method. BACKGROUND

[0002] The steel bar truss floor support plate is a truss composed of upper chords, lower chords and web members connected by resistance spot welding, which is called steel bar truss. The steel bar truss and the bottom plate are connected by resistance spot welding to form a whole combined load-bearing plate, which is called steel bar truss floor support plate. In the prior art, there is no mechanism for specifically detecting the stability of the steel bar truss floor support plate. Only personnel visually observe and manually shake the steel bars of the steel bar truss floor support plate to directly judge, which is difficult to ensure product quality and is prone to construction accidents due to the instability of the steel bar truss floor support plate. SUMMARY

[0003] The purpose of the present application is to solve the problems in the prior art. The prefabricated steel bar truss floor support plate quality detection mechanism and detection method are proposed to solve the problem that there is no mechanism for detecting the stability of the steel bar truss floor support plate in the prior art, which is difficult to ensure product quality and is prone to construction accidents due to the instability of the steel bar truss floor support plate.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] The prefabricated steel bar truss floor support plate quality detection mechanism comprises a base, a vibration exciter mounted on the base and a steel bar connecting structure one fixedly installed on the top of the vibration exciter, a side leg rotatably installed at the bottom of the base and having an extension structure, an infrared detection module installed on the side leg, and a steel bar connecting structure two installed at the end of the side leg.

[0006] Further improved technical scheme based on the above-mentioned scheme, the side leg comprises a fixed rod, a shell and a movable rod, the fixed rod and the shell are fixedly installed, and a cavity is arranged in the shell, a guide rod is installed in the cavity, one end of the movable rod is in sliding fit with the guide rod, and a power coil one is installed at the end, a spring is installed at the corresponding position of the power coil one in the cavity, a power coil two is installed at the free end of the spring and in sliding fit with the inside of the shell, and the magnetic field directions of the power coil one and the power coil two are opposite after being powered.

[0007] Further improved technical scheme based on the above-mentioned scheme, the infrared detection module comprises an infrared emitter installed on the fixed rod and an infrared receiver installed on the movable rod and corresponding to the position of the infrared emitter.

[0008] Further improved technical solutions based on the above scheme, the energized coil one and the end of the movable rod are connected through a flexible assembly, the end of the movable rod is provided with a sliding block, the sliding block is provided with a mounting groove for mounting the energized coil one, the mounting groove is internally provided with a through hole corresponding to the position of the guide rod, the through hole is internally movably mounted with a wedge-shaped guide block, and the wedge-shaped guide block and the back of the energized coil one are connected through a connecting rod, and the energized coil one and the bottom surface of the mounting groove are connected through a flexible piece.

[0009] Further improved technical solutions based on the above scheme, the side of the guide rod corresponding to the position of the through hole is provided with a wedge-shaped groove, and the wedge-shaped guide block and the wedge-shaped groove are one-way adapted and mounted.

[0010] Further improved technical solutions based on the above scheme, the sliding block is mounted with a limiting plate, and the limiting plate is used to limit the mounting position of the energized coil one in the mounting groove.

[0011] The detection method of the prefabricated steel bar truss floor support plate quality detection mechanism is as follows:

[0012] The steel bar connecting structure one is fixed below the steel bar connecting structure one fixing point of the steel bar truss floor support plate top steel bar, two steel bar connecting structure twos are fixed at the two steel bar connecting structure one fixing points of the steel bar truss floor support plate bottom, the power of the energized coil one and the energized coil two is adjusted, the magnetic field directions of the energized coil one and the energized coil two are opposite, the elongation force of the side leg is adjusted, the whole structure is fixed relative to the steel bar truss floor support plate, the working of the vibration exciter is controlled, and when the vibration exciter vibrates, the distance change amplitude between the infrared emitter and the infrared receiver is judged through the infrared receiver.

[0013] Further improved technical solutions based on the above scheme, after the power supply supplies power to the energized coil one and the energized coil two, the energized coil one pushes the connecting rod to move to the inside of the mounting groove, drives the wedge-shaped guide block to move outward along the through hole and is pressed into the wedge-shaped groove on the outer wall of the guide rod to form a one-way anti-backout structure, and at the same time, the energized coil one compresses the flexible piece, the energized coil two also compresses the spring, and the extension length of the movable rod is fixed.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] By setting additional special detection mechanism, the stability of the steel bar truss floor support plate is detected uniformly, so that the unqualified steel bar truss floor support plate can be distinguished, and the product quality is improved, and the construction accidents caused by the poor stability of the steel bar truss floor support plate are avoided.

[0016] The steel bar connecting structure one is fixed below the steel bar connecting structure one fixed point of the steel bar truss floor support plate top steel bar, two steel bar connecting structure two are fixed at the two steel bar connecting structure one fixed points of the steel bar truss floor support plate bottom, the power supply of the power coil one and the power coil two is adjusted, the magnetic field direction of the power coil one and the power coil two is opposite, the elongation force of the side leg is adjusted, the whole structure is fixed relative to the steel bar truss floor support plate, the vibration exciter works, and when the vibration exciter vibrates, the distance change amplitude between the infrared emitter and the infrared receiver is judged through the infrared receiver, if the change amplitude is greater than the set value, it is determined that the steel bar truss floor support plate stability is unqualified, if the change amplitude is less than the set value, it is determined that the steel bar truss floor support plate stability is qualified. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the present application;

[0018] Figure 2 It is the side leg internal structure schematic diagram of an embodiment of the present application;

[0019] Figure 3 It is the side leg internal structure schematic diagram of an embodiment of the present application;

[0020] Figure 4 It is Figure 3 The right side view of the power coil one and the slider;

[0021] Figure 5 It is Figure 4 The connection relationship diagram of the power coil one and the slider under working condition;

[0022] Figure 6 It is Figure 4 The connection relationship diagram of the power coil one and the slider under non-working condition. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Example 1, such as Figures 1 to 2 As shown, the prefabricated steel truss floor slab quality inspection mechanism includes a base 4, an exciter 2 installed on the base 4, and a steel bar connection structure 1 (clamping ring) fixedly installed on the top of the exciter 2. A side support leg is rotatably installed at the bottom of the base 4, and the side support leg is a telescopic structure. An infrared detection module is installed on the side support leg, and a steel bar connection structure 2 306 (clamping ring) is installed at the end of the side support leg.

[0026] The side support leg includes a fixed rod 305, a housing 310, and a movable rod 307. The fixed rod 305 and the housing 310 are fixedly installed, and the housing 310 has a cavity inside. A guide rod 309 is installed inside the cavity. One end of the movable rod 307 is slidably engaged with the guide rod 309, and an energized coil 308 is installed at the end. A spring 311 is installed inside the cavity at a position corresponding to the energized coil 308. An energized coil 304 is installed at the free end of the spring 311, and the energized coil 304 is slidably engaged with the inside of the housing 310. When the energized coil 308 and the energized coil 304 are energized, their magnetic field directions are opposite, and the magnitude of their magnetic fields can be adjusted.

[0027] The infrared detection module includes an infrared transmitter 303 mounted on a fixed rod 305 and an infrared receiver 301 mounted on a movable rod 307 and corresponding to the position of the infrared transmitter 303.

[0028] The testing methods and steps for precast reinforced concrete truss floor slabs are as follows:

[0029] The steel bar connecting structure one 1 is fixed below the fixing point of the steel bar connecting structure one 1 on the top steel bar of the steel bar truss floor support plate, two steel bar connecting structures two 306 are respectively fixed at the two steel bar connecting structure one 1 fixing points on the bottom of the steel bar truss floor support plate, the power supply of the energized coil one 308 and the energized coil two 304 is adjusted, the magnetic field directions of the energized coil one 308 and the energized coil two 304 are opposite, the elongation force of the side support leg is adjusted, the whole structure is fixed relative to the steel bar truss floor support plate, the operation of the vibration exciter 2 is controlled, and when the vibration exciter 2 vibrates, the distance change amplitude between the infrared emitter 303 and the infrared receiver 301 is judged through the infrared receiver 301. If the change amplitude is greater than the set value, it is determined that the steel bar truss floor support plate stability is unqualified, and if the change amplitude is less than the set value, it is determined that the steel bar truss floor support plate stability is qualified.

[0030] If only flexible connection is used, when the vibration exciter 2 works, resonance may exist, which may cause low detection accuracy and certain interference problems; or rigid connection is directly used, which may easily cause false position installation and result in inaccurate detection.

[0031] On the basis of the above embodiment, the following improvements are made, as shown in Figures 3 to 6 The end of the movable rod 307 is provided with a sliding block 312, the sliding block 312 is provided with a mounting groove 313 for mounting the energized coil one 308, the inside of the mounting groove 313 is provided with a through hole 314 corresponding to the position of the guide rod 309, the through hole 314 is movably mounted with a wedge-shaped guide block 315, and the wedge-shaped guide block 315 and the back of the energized coil one 308 are rotationally connected through a connecting rod 319, and the energized coil one 308 and the bottom surface of the mounting groove 313 are connected through a flexible piece 316.

[0032] The side of the guide rod 309 corresponding to the position of the through hole 314 is provided with a wedge-shaped groove 317, and the wedge-shaped guide block 315 and the wedge-shaped groove 317 are one-way adapted and mounted. When the two coils are energized, the energized coil one 308 moves away from the energized coil two 304, and when the clasp ring on the movable rod 307 is tightly mounted on the steel bar, it will continue to move towards the inside of the mounting groove 313 and press the flexible piece 316 (spring), and the wedge-shaped guide block 315 is moved outward through the connecting rod 316 and is inserted into the wedge-shaped groove 317 to form a one-way retreat structure. When the magnetic field disappears, the flexible piece 316 resets the energized coil one 308, and when the vibration exciter 2 works, the movable rod 307, the fixed rod 305 and the shell 310 form a rigid structure to eliminate the problem of interference resonance affecting detection accuracy when flexible connection is used.

[0033] The slider 312 is provided with a limiting plate 318 for limiting the installation position of the energized coil 308 in the installation slot 313. The energized coil 308 is limited and fixed by the limiting plate 318 to prevent the energized coil 308 from moving.

[0034] When the power supply supplies power to the energized coil 308 and the energized coil 304, the energized coil 308 pushes the connecting rod 319 to move towards the inside of the installation slot 313, drives the wedge-shaped guide block 315 to move along the through hole 314 to the outside and is pressed into the wedge-shaped slot 317 on the outer wall of the guide rod 309 to form a one-way anti-backout structure, at the same time, the energized coil 308 compresses the flexible part 316, the energized coil 304 also compresses the spring 311, and the extension length of the movable rod 307 is fixed.

[0035] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this. The alternatives can be the alternatives of partial structures, devices, method steps, or complete technical solutions. According to the technical solutions and the inventive concept of the present application, equivalent alternatives or changes are covered in the protection scope of the present application.

Claims

1. A testing method for the quality inspection of precast assembled steel truss floor slabs, characterized in that, The prefabricated assembled steel truss floor deck quality inspection mechanism includes a base, an exciter installed on the base and a steel reinforcement connection structure one fixedly installed on the top of the exciter, a side support leg rotatably installed on the bottom of the base and the side support leg is a telescopic structure, an infrared detection module is installed on the side support leg and a steel reinforcement connection structure two is installed at the end of the side support leg. The side support leg includes a fixed rod, a housing, and a movable rod. The fixed rod and the housing are fixedly installed, and the housing has a cavity inside. A guide rod is installed inside the cavity. One end of the movable rod is slidably engaged with the guide rod, and an energized coil is installed at the end. A spring is installed inside the cavity at a position corresponding to the energized coil. An energized coil is installed at the free end of the spring, and the energized coil is slidably engaged with the inside of the housing. When the energized coil is energized, the magnetic field directions of the energized coil and the energized coil are opposite. The infrared detection module includes an infrared transmitter mounted on a fixed rod and an infrared receiver mounted on a movable rod corresponding to the position of the infrared transmitter. The first energized coil and the end of the movable rod are connected by a flexible component. The end of the movable rod is provided with a slider, and the slider is provided with a mounting groove for installing the first energized coil. The mounting groove is provided with a through hole corresponding to the position of the guide rod. A wedge-shaped guide block is movably installed inside the through hole. The back of the wedge-shaped guide block and the first energized coil are rotatably connected by a connecting rod. The first energized coil and the bottom surface of the mounting groove are connected by a flexible component. A wedge-shaped groove is provided on one side of the guide rod and the position corresponding to the through hole, and the wedge-shaped guide block and the wedge groove are installed in a one-way adaptation. A limiting plate is installed on the slider, which is used to limit the installation position of the energized coil one inside the mounting slot; The testing steps are as follows: The first rebar connection structure is fixed below the fixing point of the first rebar connection structure at the top of the steel truss floor slab. Two second rebar connection structures are fixed at the two fixing points of the first rebar connection structure at the bottom of the steel truss floor slab. The power supply of the first and second energized coils is adjusted, and the magnetic field directions of the first and second energized coils are opposite. The extension force of the side support legs is adjusted, and the entire structure is fixed relative to the steel truss floor slab. The vibrator is controlled to work, and the change in distance between the infrared transmitter and the infrared receiver is judged by the infrared receiver when the vibrator vibrates. If the change is greater than the set value, the stability of the steel truss floor slab is judged to be unqualified. If the change is less than the set value, the stability of the steel truss floor slab is judged to be qualified.

2. The testing method of the prefabricated assembled steel truss floor slab quality testing mechanism according to claim 1, characterized in that, After the power source supplies power to the first and second energized coils, the first energized coil pushes the connecting rod to move into the mounting groove, and drives the wedge-shaped guide block to move outward along the through hole and press against the wedge-shaped groove on the outer wall of the guide rod to form a one-way anti-reverse structure. At the same time, the first energized coil compresses the flexible part, and the second energized coil also compresses the spring, and the outward extension length of the movable rod is fixed.

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