Prestressed floor hole auxiliary device and construction method

Abstract

The application discloses a prestressed floor hole opening auxiliary device and a construction method, and belongs to the technical field of building construction. The prestressed floor hole opening auxiliary device and the construction method are characterized in that the electric push rod is used for contraction movement, so that the electric push rod can drive the telescopic frame to expand, the telescopic frame can drive the concrete perspective instrument to move through another connecting strip, the concrete perspective instrument can detect the running direction of the steel bars at the floor hole opening through the detection head, the operation can automatically realize the detection of the running direction of the steel bars, the convenience of construction operation is improved, the running direction of the steel bars is detected, the electromagnetic valve is immediately opened to discharge the pipe, the paint stored in the shell can flow into the discharge pipe at this time, and is discharged through the discharge head, so that the steel wire can be formed, the running direction of the steel bars can be easily recognized by the staff in the subsequent work, and the purpose of directly marking the steel bars during the detection process is achieved, and the convenience of construction is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a prestressed floor hole auxiliary device and a construction method. BACKGROUND

[0002] At present, the construction of new buildings in cities tends to be saturated, and urban renewal and reconstruction projects gradually increase. The reconstruction project often involves the demolition and reinforcement of the original structure, changes to the original layout and use of the house, thereby extending the service life of the structure and enhancing the use function of the building. For the structure floor hole with prestressed reinforcement, the concrete is often chiseled with a pneumatic pick, which causes great damage to the prestressed reinforcement and easily breaks the prestressed reinforcement, affecting the safety of the structure.

[0003] In order to reduce the damage to the reinforcement when chiseling the concrete, a concrete perspective instrument is generally used to detect the concrete. However, the commonly used concrete perspective instrument needs to be cleaned on the ground first, then manually moved for detection, and then marked according to the detection results after detection. The whole operation process is relatively troublesome, and the stability of the perspective instrument is poor when moving. Moreover, since the construction site is dusty, dust will fall on the surface soon after cleaning, affecting the subsequent marking effect. In addition, the display of the concrete perspective instrument is always exposed outside when not in use, which is easy to be damaged. Therefore, it is of great significance to study a new prestressed floor hole auxiliary device and construction method to solve the above problems. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above and / or existing problems in building construction, the present application is proposed.

[0006] Therefore, the technical problem to be solved by the present application is that the commonly used concrete perspective instrument needs to be cleaned on the ground first, then manually moved for detection, and then marked according to the detection results after detection. The whole operation process is relatively troublesome, and the stability of the perspective instrument is poor when moving. Moreover, since the construction site is dusty, dust will fall on the surface soon after cleaning, affecting the subsequent marking effect. In addition, the display of the concrete perspective instrument is always exposed outside when not in use, which is easy to be damaged.

[0007] To achieve the above purpose, the present application provides the following technical scheme: a prestressed floor hole auxiliary device, comprising,

[0008] The hole detection mechanism comprises a protection assembly and a concrete perspective instrument arranged in the protection assembly, the bottom of the concrete perspective instrument is provided with a detection head, the left side of the concrete perspective instrument is fixedly connected with a liquid storage assembly, the bottom of the liquid storage assembly is communicated with a liquid outlet assembly, the liquid outlet assembly is fixedly connected to the bottom of the concrete perspective instrument, the right side of the concrete perspective instrument is fixedly connected with a telescopic assembly, and one side of the telescopic assembly is fixedly connected to the side wall of the protection assembly.

[0009] The detection auxiliary mechanism comprises a cleaning assembly and a connecting handle arranged at the end of the cleaning assembly, the cleaning assembly is fixedly connected to the bottom of the liquid storage assembly, the connecting handle is slidably connected with a roller body, one end of the roller body is fixedly connected with the connecting handle, the upper side of the connecting handle is fixedly connected with a pull rope rotating assembly, one end of the pull rope rotating assembly is fixedly connected with the side wall of the protection assembly, and the pull rope rotating assembly is fixedly connected to the bottom of the concrete perspective instrument.

[0010] As a further scheme of the present application, the protection assembly comprises a shell, one side of the shell is fixedly connected with a handle, the concrete perspective instrument is arranged in the shell, and the bottom of the shell is fixedly connected with a plurality of anti-skid strips.

[0011] As a further scheme of the present application, the liquid storage assembly comprises a shell body, the shell body is fixedly connected to the concrete perspective instrument, the top of the shell body is provided with a liquid injection end, and one side of the shell body is provided with a scale window.

[0012] As a further scheme of the present application, the bottom of the shell body and the concrete perspective instrument are fixedly connected with moving wheels, and the lower side of the shell is provided with two openings, and the two moving wheels are arranged in the openings.

[0013] As a further scheme of the present application, the telescopic assembly comprises a telescopic frame, the telescopic frame is arranged in the shell, and the two ends of the telescopic frame are connected with the two ends of the electric push rod.

[0014] As a further scheme of the present application, the two ends of the telescopic frame are hingedly connected with two connecting strips respectively, the two connecting strips are fixedly connected to one side of the concrete perspective instrument and the side wall of the shell respectively, a sliding groove is arranged on the connecting strip, a sliding block is slidably connected in the sliding groove, and the sliding block is hingedly connected with the telescopic frame.

[0015] As a further scheme of the present application, the liquid outlet assembly comprises a discharge pipe, the discharge pipe is communicated with the bottom of the shell body, an electromagnetic valve is arranged on the discharge pipe, a liquid outlet head is communicated with the end of the discharge pipe away from the shell body, a fixed block is fixedly connected to the discharge pipe, and the fixed block is fixedly connected to the bottom of the concrete perspective instrument.

[0016] As a further scheme of the present application: the cleaning assembly comprises a swing rod, the connecting handle is arranged on the swing rod, a rotating rod is fixedly connected to the swing rod, the rotating rod is rotatably connected to a first bearing, and the first bearing is fixedly connected to the bottom of the shell.

[0017] One end of the swing rod is fixedly connected with a brush below.

[0018] As a further scheme of the present application: the rope rotating assembly comprises a rotating shaft, the bottom of the rotating shaft is fixedly connected with the connecting handle, the rotating shaft is rotatably connected to a second bearing, the second bearing is fixedly connected to a fixed frame, and the fixed frame is fixedly connected to the bottom of the concrete perspective instrument.

[0019] The rotating shaft is fixedly connected with a rope reel, the rope reel is wound with a rope, the rope is wound around a guide wheel and fixedly connected with the side wall of the shell, and the guide wheel is fixedly connected to the concrete perspective instrument.

[0020] A torsional spring is fixedly connected between the bottom of the second bearing and the rope reel, and the torsional spring is sleeved outside the rotating shaft.

[0021] A construction method of a prestressed floor hole auxiliary device comprises the following steps:

[0022] S1, the floor hole position line is released, and each side is expanded by 150 mm (for anchor sealing);

[0023] S2, the concrete perspective instrument is placed on the floor, then the electric push rod is retracted, the electric push rod drives the telescopic frame to expand, the telescopic frame drives the concrete perspective instrument to move out of the shell through the connecting strip, and the concrete perspective instrument drives the rope reel to move, at this time, the rope reel releases the rope to rotate, the rope reel drives the rotating shaft to rotate, the rotating shaft drives the roller to slide in the connecting handle through the connecting handle, the roller drives the swing rod to swing, the swing rod swings around the rotating rod and drives the brush to clean the floor surface, the concrete perspective instrument scans the position and direction of the prestressed steel bar at the hole through the detection head, and when the position of the steel bar is detected, the electromagnetic valve is opened to discharge the pipe, so that the paint stored in the shell flows out through the liquid outlet to form a steel wire;

[0024] S3, the water drill is used to cut and remove the place without prestressed steel bar at the hole, and the hammer and chisel are used to manually break the concrete at the prestressed steel bar to avoid damaging the prestressed steel bar;

[0025] S4, the angle steel is installed around the hole, and the gap between the angle steel and the hole is filled with high-strength grouting material.

[0026] S5, the lower part of the floor around the hole is pasted with carbon fiber plate with a specification of 100*1.2, and the upper part of the floor around the hole is pasted with 3 layers of carbon fiber cloth, the carbon fiber cloth is extended along the hole edge by 600mm on each side, the width of the carbon fiber cloth is 200mm, and the corner part around the hole is pasted with carbon fiber reinforcing sheet;

[0027] S6, the prestressed steel is anchored by using an open anchor, after anchoring, sandbags or wood stop boards with sufficient strength are stacked on one side of the hole cutting part, and the prestressed steel is slowly and root by root cut off on the other side by using an angle grinder, and the cutting process follows the principle of "slow cutting and slow releasing";

[0028] S7, the cut prestressed steel is tensioned, and the tension control stress reaches 60% of the ultimate tensile strength of the original prestressed steel.

[0029] S8, hole anchor sealing: after the prestressed steel is anchored, cut and tensioned, the hole around is sealed. 2C14 is arranged on each side of the hole, the end is bent by 10d (140mm) and is welded with angle steel, A8@150 is used as the stirrup, after the steel bar is bound, C40 micro-expansion concrete is poured by supporting and pouring.

[0030] Compared with the prior art, the beneficial effects of the present application are that:

[0031] 1. The prestressed floor hole opening auxiliary device and construction method, through the contraction movement of the electric push rod, the electric push rod can drive the telescopic frame to expand, the telescopic frame can drive the concrete perspective instrument to move through the other connecting strip, the concrete perspective instrument can detect the running direction of the steel bar at the floor hole through the detection head, and the operation of detecting the running direction of the steel bar can be automatically realized, the convenience of construction operation is improved, the running direction of the steel bar can be detected, the electromagnetic valve can be opened to discharge the pipe, at this time, the paint stored in the shell can flow into the discharge pipe and be discharged through the discharge head, so that the steel wire can be formed, the subsequent identification of the running direction of the steel bar by the worker is facilitated, and the purpose of directly marking the steel bar during the detection process is achieved, and the convenience of construction is improved.

[0032] 2. The prestressed floor hole opening auxiliary device and construction method, through the contraction of the electric push rod, the telescopic frame can be driven to expand, the telescopic frame can drive the concrete perspective instrument to move, the concrete perspective instrument can drive the detection head to detect the steel bar of the floor, and the concrete perspective instrument drives the rope reel to move, so that the rope reel can release the rope and rotate, the rope reel drives the rotating shaft and the connecting handle to rotate, the connecting handle can slide on the connecting handle through the roller, so that the roller can drive the swing rod to move, the swing rod can swing around the rotating rod, so that the brush can automatically clean the surface of the floor, thereby facilitating subsequent operation, and the brush is located in front of the concrete perspective instrument, so that after cleaning, the concrete perspective instrument can directly detect.

[0033] 3. The prestressed floor hole auxiliary device and construction method, through the extension movement of the electric push rod, the electric push rod drives the telescopic frame to shrink, the telescopic frame drives the concrete perspective instrument to retract through the connecting strip, and the concrete perspective instrument enters the shell, so that the shell can protect the concrete perspective instrument, avoiding the problem that the concrete perspective instrument is exposed to the outside and is easily damaged.

[0034] 4. The prestressed floor hole construction method, (1) the position of the prestressed steel bar in the floor is detected by using the concrete perspective instrument, effectively avoiding damage to the prestressed steel bar during the floor hole process;

[0035] (2) the prestressed steel bar is anchored by using the opening anchor, avoiding shrinkage and springing when the prestressed steel bar is cut off;

[0036] (3) when the hole is opened, the size of the hole is increased by 150mm on each side, and the post-poured concrete can close the anchor, while ensuring the flatness of the hole edge;

[0037] (4) when the prestressed steel bar of the original structure is tensioned, the tension control stress is controlled at 70% of the ultimate tensile strength of the steel bar, the anchor is tensioned again, and the tension control stress reaches 60% of the ultimate tensile strength of the original steel bar, which can ensure that the floor concrete will not crack. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0039] Figure 1 A three-dimensional structural schematic view of the prestressed floor hole auxiliary device and construction method provided by the embodiments of the present application.

[0040] Figure 2 A three-dimensional structural schematic view of the prestressed floor hole auxiliary device and construction method provided by the embodiments of the present application.

[0041] Figure 3 A three-dimensional structural schematic view of the prestressed floor hole auxiliary device and construction method provided by the embodiments of the present application.

[0042] Figure 4 A three-dimensional structural schematic view of the prestressed floor hole auxiliary device and construction method provided by the embodiments of the present application.

[0043] Figure 5A prestressed floor hole auxiliary device and construction method provided by the embodiment of the present application is shown in the structure diagram of the telescopic assembly.

[0044] Figure 6 A prestressed floor hole auxiliary device and construction method provided by the embodiment of the present application is shown in the structure diagram of the telescopic assembly.

[0045] Figure 7 A prestressed floor hole auxiliary device and construction method provided by the embodiment of the present application is shown in the structure diagram of the telescopic assembly.

[0046] Figure 8 A prestressed floor hole auxiliary device and construction method provided by the embodiment of the present application is shown in the structure diagram of the telescopic assembly.

[0047] Figure 9 A prestressed floor hole auxiliary device and construction method provided by the embodiment of the present application is shown in the structure diagram of the telescopic assembly.

[0048] Figure 10 A prestressed floor hole auxiliary device and construction method provided by the embodiment of the present application is shown in the structure diagram of the telescopic assembly.

[0049] In the figure: 100, hole detection mechanism; 101, protection assembly; 1011, shell; 1012, anti-skid strip; 1013, handle; 102, concrete perspective instrument; 103, telescopic assembly; 1031, electric push rod; 1032, telescopic frame; 1033, sliding block; 1034, sliding groove; 1035, connecting strip; 104, moving wheel; 105, liquid storage assembly; 1051, shell; 1052, liquid injection end; 1053, scale window; 106, liquid discharge assembly; 1061, discharge pipe; 1062, electromagnetic valve; 1063, liquid discharge head; 1064, fixed block; 107, detection head; 200, detection auxiliary mechanism; 201, cleaning assembly; 2011, swing rod; 2012, brush; 2013, rotating rod; 2014, first bearing; 202, pull rope rotating assembly; 2021, rotating shaft; 2022, rope; 2023, second bearing; 2024, rope reel; 2025, torsional spring; 2026, fixed frame; 203, connecting handle; 204, connecting handle; 205, roller body; 206, guide wheel. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0051] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details. In other instances, well-known methods have not been described in detail in order not to unnecessarily obscure aspects of the present application. Accordingly, it will be appreciated that the present application can be practiced with modification and alteration, and that the present application be limited by the

[0052] Second, the present application is described in detail in conjunction with the schematic diagram, in the detailed description of the embodiments of the present application, for the convenience of description, the cross-sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions including length, width and depth should be included in actual production.

[0053] Third, the "one embodiment" or "embodiment" referred to herein can include specific features, structures or characteristics in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments.

[0054] Embodiment 1

[0055] As Figures 1-6As shown, the present application provides a technical scheme: a prestressed floor opening auxiliary device, including opening detection mechanism 100, opening detection mechanism 100 includes protection assembly 101 and is arranged in the concrete perspective instrument 102 in protection assembly 101 inside, the bottom of concrete perspective instrument 102 is equipped with detection head 107, concrete perspective instrument 102 can detect the position of the prestressed reinforcement in the floor through detection head 107, effectively avoid the damage to the prestressed reinforcement in the process of floor opening, the left side of concrete perspective instrument 102 is fixedly connected with liquid storage assembly 105, liquid storage assembly 105 includes shell 1051, shell 1051 is fixedly connected on concrete perspective instrument 102, the top of shell 1051 is equipped with liquid injection end 1052, the paint liquid can be stored through shell 1051, and the paint liquid can be conveniently injected into shell 1051 through liquid injection end 1052, one side of shell 1051 is equipped with scale window 1053, the liquid level of paint liquid in shell 1051 can be observed through scale window 1053, which is convenient for liquid injection, the bottom of shell 1051 and concrete perspective instrument 102 is fixedly connected with movable wheel 104, the concrete perspective instrument 102 can be supported through movable wheel 104, and the smooth movement of concrete perspective instrument 102 can be maintained, and the lower portion of shell 1011 is equipped with two openings, wherein the two movable wheels 104 are located in the openings, the movable wheels 104 can move smoothly through the openings, avoid the movable wheels 104 being blocked to cause the concrete perspective instrument 102 unable to move, the bottom of liquid storage assembly 105 is communicated with liquid outlet assembly 106, liquid outlet assembly 106 includes discharge pipe 1061, discharge pipe 1061 is communicated with the bottom of shell 1051, electromagnetic valve 1062 is equipped on discharge pipe 1061, the opening and closing of discharge pipe 1061 can be controlled through electromagnetic valve 1062, so that the discharge of paint liquid is facilitated, discharge pipe 1061 is communicated with liquid outlet head 1063 away from one end of shell 1051, the paint liquid can be guided to discharge from liquid outlet head 1063 through discharge pipe 1061, so that the floor reinforcement can be marked, discharge pipe 1061 is fixedly connected with fixed block 1064, fixed block 1064 is fixedly connected on the bottom of concrete perspective instrument 102, liquid outlet assembly 106 is fixedly connected on the bottom of concrete perspective instrument 102, the right side of concrete perspective instrument 102 is fixedly connected with telescopic assembly 103, telescopic assembly 103 includes telescopic frame 1032, telescopic frame 1032 is located in shell 1011, the two ends of telescopic frame 1032 are connected with the two ends of electric push rod 1031, the telescopic movement of electric push rod 1031 makes that electric push rod 1031 can control the operation of unfolding and shrinking of telescopic frame 1032, so that the automatic movement of concrete perspective instrument 102 for detection operation can be realized, the two ends of telescopic frame 1032 are respectively hinged with two connecting strips 1035, two connecting strips 1035 are respectively fixedly connected on one side of concrete perspective instrument 102 and the side wall of shell 1011, the sliding groove 1034 is formed in connecting strip 1035,The sliding block 1033 can slide in the sliding groove 1034, so that the telescopic frame 1032 can be smoothly extended and retracted. The sliding block 1033 is hinged to the telescopic frame 1032, and one side of the telescopic assembly 103 is fixedly connected to the side wall of the protection assembly 101.

[0056] In this embodiment, the telescopic frame 1032 is driven to expand by the electric push rod 1031, so that the telescopic frame 1032 can drive the concrete perspective instrument 102 to move through the other connecting strip 1035. The concrete perspective instrument 102 can detect the steel bars at the opening of the floor slab and detect the direction of the steel bars through the detection head 107. The operation can automatically detect the direction of the steel bars, improve the convenience of the construction operation, and detect the direction of the steel bars. Then, the electromagnetic valve 1062 is opened to open the discharge pipe 1061. At this time, the paint stored in the shell 1051 can flow into the discharge pipe 1061 and be discharged through the discharge head, so that the steel bar line can be formed. The staff can identify the direction of the steel bars in the subsequent work, and the purpose of directly marking the steel bars can be achieved during the detection process, improving the convenience of the construction.

[0057] Embodiment 2

[0058] Combined with the accompanying drawings Figures 4-5 and the accompanying drawings Figures 7-10The detection auxiliary mechanism 200 comprises a cleaning assembly 201 and a connecting handle 204 formed at the end of the cleaning assembly 201, the cleaning assembly 201 comprises a swing rod 2011, the connecting handle 204 is formed on the swing rod 2011, the swing rod 2011 is fixedly connected with a rotating rod 2013, the rotating rod 2013 is rotationally connected in a first bearing 2014, the smooth rotation of the rotating rod 2013 can be ensured through the first bearing 2014, the rotating resistance of the rotating rod 2013 is reduced, and the swing rod 2011 can be swung around the rotating rod 2013 as the center, the cleaning area of the floor is increased, the first bearing 2014 is fixedly connected to the bottom of the shell 1051, a brush 2012 is fixedly connected below one end of the swing rod 2011, the floor surface can be cleaned through the brush 2012, the paint laying is facilitated, and the accuracy of the marking is ensured, the cleaning assembly 201 is fixedly connected to the bottom of the liquid storage assembly 105, a roller 205 is slidingly connected in the connecting handle 204, the connecting handle 204 provides a movement space for the roller 205, the roller 205 can be smoothly rotated, and the roller 205 can also drive the swing rod 2011 to swing, one end of the roller 205 is fixedly connected with a connecting handle 203, a pull rope rotating assembly 202 is fixedly connected above the connecting handle 203, the pull rope rotating assembly 202 comprises a rotating shaft 2021, the bottom of the rotating shaft 2021 is fixedly connected with the connecting handle 203, the rotating shaft 2021 is rotationally connected in a second bearing 2023, the rotating shaft 2021 can be stably rotated through the second bearing 2023, a rope reel 2024 can be stably rotated to wind and unwind a rope 2022, the second bearing 2023 is fixedly connected to a fixed frame 2026, the fixed frame 2026 is fixedly connected to the bottom of the concrete perspective instrument 102, the rotating shaft 2021 is fixedly connected with the rope reel 2024, the rope 2022 is wound on the rope reel 2024, the rope 2022 is wound on the guide wheel 206 and fixedly connected with the side wall of the shell 1011, the rope 2022 can be guided through the guide wheel 206, the wear of the rope 2022 is reduced, one end of the rope 2022 is connected with the shell 1011, the rope reel 2024 is moved to unwind the rope 2022 to realize the rotary motion, the guide wheel 206 is fixedly connected to the concrete perspective instrument 102, the second bearing 2023 is fixedly connected between the rope reel 2024 and below, a torsional spring 2025 is fixedly connected between the rope reel 2024 and below, the torsional force of the torsional spring 2025 can drive the rope reel 2024 to automatically wind the rope 2022 during the retraction of the concrete perspective instrument 102, the torsional spring 2025 is sleeved outside the rotating shaft 2021, one end of the pull rope rotating assembly 202 is fixedly connected with the side wall of the protection assembly 101, and the pull rope rotating assembly 202 is fixedly connected to the bottom of the concrete perspective instrument 102.

[0059] The telescopic assembly 103 comprises a telescopic frame 1032 located in the shell 1011, two ends of the telescopic frame 1032 are connected with two ends of the electric push rod 1031, two ends on the two sides of the telescopic frame 1032 are respectively hinged with two connecting strips 1035, the two connecting strips 1035 are respectively fixedly connected on one side of the concrete perspective instrument 102 and the side wall of the shell 1011, a sliding groove 1034 is formed in the connecting strip 1035, and a sliding block 1033 is slidably connected in the sliding groove 1034 and hinged with the telescopic frame 1032.

[0060] In the embodiment, the telescopic frame 1032 is driven to expand by the electric push rod 1031, so that the telescopic frame 1032 can drive the concrete perspective instrument 102 to move, the movement of the concrete perspective instrument 102 can drive the detection head 107 to detect the steel bars on the floor, the concrete perspective instrument 102 drives the rope disc 2024 to move, so that the rope disc 2024 releases the rope 2022 and rotates, the rope disc 2024 drives the rotating shaft 2021 and the connecting handle 203 to rotate, the connecting handle 203 can drive the roller body 205 to slide on the connecting handle 204, so that the roller body 205 can drive the swing rod 2011 to move, the swing rod 2011 swings around the rotating rod 2013, and the brush 2012 can automatically clean the surface of the floor, so that the subsequent operation is facilitated, and the brush 2012 is located in front of the concrete perspective instrument 102, so that the concrete perspective instrument 102 can directly perform the detection operation after cleaning.

[0061] Embodiment 3

[0062] Combined with the accompanying drawings Figure 3 and the accompanying drawings Figure 5 , it is concluded that the telescopic assembly 103 comprises a telescopic frame 1032 located in the shell 1011, two ends of the telescopic frame 1032 are connected with two ends of the electric push rod 1031, two ends on the two sides of the telescopic frame 1032 are respectively hinged with two connecting strips 1035, the two connecting strips 1035 are respectively fixedly connected on one side of the concrete perspective instrument 102 and the side wall of the shell 1011, a sliding groove 1034 is formed in the connecting strip 1035, and a sliding block 1033 is slidably connected in the sliding groove 1034 and hinged with the telescopic frame 1032.

[0063] The protection assembly 101 comprises the shell 1011, one side of the shell 1011 is fixedly connected with a handle 1013, the concrete perspective instrument 102 is located in the shell 1011, and the bottom of the shell 1011 is fixedly connected with a plurality of anti-skid strips 1012.

[0064] In this embodiment: through the extension movement of the electric push rod 1031, the electric push rod 1031 drives the telescopic frame 1032 to perform the contraction movement, the telescopic frame 1032 drives the concrete perspective instrument 102 to retract through the connecting strip 1035, and the concrete perspective instrument 102 enters the shell 1011, so that the shell 1011 can play a protective role on the concrete perspective instrument 102, avoiding the problem that the concrete perspective instrument 102 is exposed to the outside world and is easily damaged.

[0065] A construction method of a prestressed floor hole auxiliary device, comprising the following steps:

[0066] S1, release the floor hole position line, and expand outward by 150mm on each side for anchor closure;

[0067] S2, place the concrete perspective instrument 102 on the floor, then retract the electric push rod 1031 to drive the telescopic frame 1032 to expand, the telescopic frame 1032 drives the concrete perspective instrument 102 to move out of the shell 1011 through the connecting strip 1035, and the concrete perspective instrument 102 drives the rope reel 2024 to move, at this time the rope reel 2024 releases the rope 2022 to rotate, the rope reel 2024 drives the rotating shaft 2021 to rotate, the rotating shaft 2021 drives the roller body 205 to slide in the connecting handle 204 through the connecting handle 203, the roller body 205 drives the swing rod 2011 to swing, the swing rod 2011 swings around the rotating rod 2013 and drives the brush 2012 to perform floor surface cleaning work, so that the concrete perspective instrument 102 scans the position and direction of the prestressed steel bar at the hole through the detection head 107, and when the position of the steel bar is detected, the electromagnetic valve 1062 is opened to open the discharge pipe 1061, so that the paint stored in the shell 1051 flows out through the liquid outlet head 1063 to form a steel wire;

[0068] S3, use a water drill to cut and remove the place without prestressed steel bars at the hole, and manually break the concrete at the place with prestressed steel bars by using a hammer and a chisel to avoid damaging the prestressed steel bars;

[0069] S4, install angle steels around the hole, and fill the gap between the angle steels and the hole with high-strength grouting material;

[0070] S5, paste carbon fiber plates with a specification of 100*1.2 at the lower part of the floor around the hole, paste 3 layers of carbon fiber cloth at the upper part of the floor around the hole, the carbon fiber cloth extends along the hole edge by 600mm on each side, the width of the carbon fiber cloth is 200mm, and carbon fiber reinforcing sheets are pasted at the corners around the hole;

[0071] S6, anchor the prestressed steel bars by using an opening anchor, pile up sandbags or wood stop plates with sufficient strength on one side of the cutting place at the hole after anchoring, slowly cut off the prestressed steel bars on the other side by using an angle grinder, and the cutting process follows the principle of "slow cutting and slow release";

[0072] S7, the cut prestressed steel bar is tensioned, and the tension control stress reaches 60% of the ultimate tensile strength of the original prestressed steel bar.

[0073] S8, hole opening anchor sealing: after the prestressed steel bar anchoring, cutting and tensioning are completed, the hole opening is sealed around. 2C14 is arranged on each side of the hole opening, the end is bent by 10d140mm and welded with angle steel, A8@150 is used for stirrup, and after the steel bar binding is completed, C40 micro-expansion concrete is poured.

[0074] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various different exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) using no more than the common general knowledge of the art, and without adversely affecting the inherent novel teaching and advantages of the subject matter described in this application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Accordingly, all such modifications are intended to be included within the scope of the application. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the generality of the application. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the application as expressed in the appended claims. Accordingly, the application is not limited to particular embodiments described, but extends to various modifications that still fall within the scope of the appended claims.

[0075] Furthermore, in order to provide a concise description of exemplary embodiments, all features of an actual implementation can not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the application, or those unrelated to enabling the application).

[0076] It is to be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0077] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced, without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An auxiliary device for opening holes in prestressed floor slabs, characterized in that: include, The hole detection mechanism (100) includes a protective component (101) and a concrete imaging device (102) disposed inside the protective component (101). The bottom of the concrete imaging device (102) is provided with a detection head (107). A liquid storage component (105) is fixedly connected to the left side of the concrete imaging device (102). The bottom of the liquid storage component (105) is connected to a liquid outlet component (106). The liquid outlet component (106) is fixedly connected to the bottom of the concrete imaging device (102). A telescopic component (103) is fixedly connected to the right side of the concrete imaging device (102). One side of the telescopic component (103) is fixedly connected to the side wall of the protective component (101). The detection auxiliary mechanism (200) includes a cleaning component (201) and a connecting handle (204) opened at the end of the cleaning component (201). The cleaning component (201) is fixedly connected to the bottom of the liquid storage component (105). A roller (205) is slidably connected in the connecting handle (204). A connecting handle (203) is fixedly connected to one end of the roller (205). A pull rope rotating component (202) is fixedly connected above the connecting handle (203). One end of the pull rope rotating component (202) is fixedly connected to the side wall of the protective component (101). The pull rope rotating component (202) is fixedly connected to the bottom of the concrete imaging instrument (102). The telescopic assembly (103) includes a telescopic frame (1032), which is located in the housing (1011), and the two ends of the telescopic frame (1032) are connected to the two ends of the electric push rod (1031). The two ends of the telescopic frame (1032) are respectively hinged to two connecting strips (1035). The two connecting strips (1035) are respectively fixedly connected to one side of the concrete imaging instrument (102) and the side wall of the outer shell (1011). A sliding groove (1034) is provided on the connecting strip (1035). A slider (1033) is slidably connected inside the sliding groove (1034). The slider (1033) is hinged to the telescopic frame (1032). The liquid outlet assembly (106) includes a discharge pipe (1061), which is connected to the bottom of the housing (1051). A solenoid valve (1062) is provided on the discharge pipe (1061). A liquid outlet head (1063) is connected to one end of the discharge pipe (1061) away from the housing (1051). A fixing block (1064) is fixedly connected to the discharge pipe (1061), and the fixing block (1064) is fixedly connected to the bottom of the concrete imaging device (102). The cleaning assembly (201) includes a swing arm (2011), a connecting handle (204) is provided on the swing arm (2011), a rotating rod (2013) is fixedly connected to the swing arm (2011), and the rotating rod (2013) is rotatably connected in a first bearing (2014), which is fixedly connected to the bottom of the housing (1051). A brush (2012) is fixedly connected to the lower end of one end of the swing rod (2011). The pull rope rotating assembly (202) includes a rotating shaft (2021), the bottom of which is fixedly connected to a connecting handle (203). The rotating shaft (2021) is rotatably connected in a second bearing (2023), which is fixedly connected to a fixing frame (2026). The fixing frame (2026) is fixedly connected to the bottom of the concrete imaging device (102). A rope reel (2024) is fixedly connected to the rotating shaft (2021), and a rope (2022) is wound on the rope reel (2024). The rope (2022) passes over the guide wheel (206) and is fixedly connected to the side wall of the outer casing (1011). The guide wheel (206) is fixedly connected to the concrete perspective instrument (102). A torsion spring (2025) is fixedly connected between the lower part of the second bearing (2023) and the rope reel (2024), and the torsion spring (2025) is sleeved on the outside of the rotating shaft (2021).

2. The prestressed floor slab opening auxiliary device as described in claim 1, characterized in that: The protective component (101) includes a housing (1011), a handle (1013) is fixedly connected to one side of the housing (1011), the concrete imaging device (102) is located in the housing (1011), and a number of anti-slip strips (1012) are fixedly connected to the bottom of the housing (1011).

3. The prestressed floor slab opening auxiliary device as described in claim 2, characterized in that: The liquid storage assembly (105) includes a housing (1051), which is fixedly connected to a concrete imaging device (102). The top of the housing (1051) is provided with an injection end (1052), and a scale window (1053) is provided on one side of the housing (1051).

4. The prestressed floor slab opening auxiliary device as described in claim 3, characterized in that: The bottom of the housing (1051) and the concrete fluorometer (102) are both fixedly connected with moving wheels (104), and the bottom of the housing (1011) is provided with two openings, in which the two moving wheels (104) are located.

5. A construction method for a prestressed floor slab opening auxiliary device as described in any one of claims 1-4, characterized in that, Includes the following steps: S1. Mark the location line of the floor slab opening and extend it outward by 150mm on each side for anchor sealing; S2. Place the concrete imaging camera (102) on the floor slab, and then retract the electric push rod (1031) to cause the electric push rod (1031) to drive the telescopic frame (1032) to unfold. The telescopic frame (1032) drives the concrete imaging camera (102) to move out of the outer shell (1011) through the connecting strip (1035), and the concrete imaging camera (102) drives the rope reel (2024) to move. At this time, the rope reel (2024) releases the rope (2022) to rotate. The rope reel (2024) drives the rotating shaft (2021) to rotate. The rotating shaft (2021) is connected to the connecting handle (203). The roller (205) slides in the connecting handle (204), causing the roller (205) to drive the swing rod (2011) to swing. The swing rod (2011) swings around the rotating rod (2013) and drives the brush (2012) to clean the floor surface. The concrete imaging instrument (102) scans the position and direction of the prestressed steel bars in the floor slab at the opening through the detection head (107). When the steel bar position is detected, the discharge pipe (1061) is opened through the solenoid valve (1062), so that the paint liquid stored inside the shell (1051) flows out through the liquid outlet (1063) to form the steel bar line. S3. Where there are no prestressed steel bars at the opening, water drill cutting is used to cut and remove them. Where there are prestressed steel bars, the concrete is manually broken up with a hammer and chisel to avoid damaging the prestressed steel bars. S4. Angle steel is installed around the opening, and the gap between the angle steel and the opening is filled with high-strength grout. S5. Carbon fiber sheets with a specification of 100×1.2 are pasted on the lower part of the floor slab around the opening. Three layers of carbon fiber cloth are pasted on the upper part of the floor slab around the opening. The carbon fiber cloth extends 600mm along the edge of the opening on each side and has a width of 200mm. Carbon fiber reinforcing sheets are pasted at the corners of the opening. S6. Use open anchorages to anchor the prestressed steel bars. After anchoring, pile sandbags or wooden baffles with sufficient strength on one side of the opening where it is cut, and use an angle grinder to slowly cut the prestressed steel bars one by one on the other side. The cutting process follows the principle of "slow cutting and slow release". S7. Tension the cut prestressed steel bars, and control the tensioning stress to reach 60% of the original prestressed steel bars' ultimate tensile strength. S8. Anchorage sealing at the opening: After the prestressed steel bars are anchored, cut, and tensioned, the opening is sealed around the perimeter. Two C14 steel bars are installed on each side of the opening, with the ends bent by 10d (140mm) and welded to the angle steel. The stirrups are set with A8@150. After the steel bars are tied, C40 micro-expansion concrete is poured.

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