Pile top concrete elevation control and reinforcement cage lifting wire integrated device and construction method

Abstract

The present application relates to the field of pile construction technology, particularly relates to a pile top concrete elevation control and steel reinforcement cage lifting bar integrated device and use method. Including lifting ring, lifting bar main body, steel reinforcement cage locking mechanism, scale assembly, concrete elevation control device and lifting bar fixing mechanism. The lifting ring is arranged at the top of the lifting bar main body, used for hoisting, the steel reinforcement cage locking mechanism is arranged at the bottom of the lifting bar main body, the scale assembly is installed on one side of the lifting bar main body, used for measuring the length of the lifting bar main body, and the steel reinforcement cage locking mechanism cooperates with the scale assembly to fix the lifting bar main body and the steel reinforcement cage together. The beneficial effects of the present application include: saving materials, accurately controlling the elevation of the steel reinforcement cage, preventing the steel reinforcement cage from floating up, controlling the overfilling height of the pile top concrete, energy saving and environmental protection, reducing construction cost, improving construction quality and the like.

Description

Technical Field

[0001] This invention relates to the field of cast-in-place pile construction technology, and in particular to an integrated device and construction method for controlling the elevation of the pile top concrete and the reinforcing cage. Background Technology

[0002] Lifting bars are an essential auxiliary tool in cast-in-place pile construction. The traditional method uses stirrups as lifting bars. Due to the rigidity and toughness of steel bars, their length is prone to error when connected to the steel cage and support beam. Each steel cage needs at least two lifting bars arranged symmetrically. Currently, most existing lifting bars are disposable, which causes a great waste of steel and increases construction costs. In addition, when using disposable lifting bars, the length of the lifting bars is mostly judged by the experience of the workers, which can cause the steel cage to be sometimes high and sometimes low, which will have a great impact on the later construction.

[0003] Currently, there are some simple rebar lifting devices on the market that can be reused, but their accuracy is not high. If a high-precision measuring device is installed on the lifting bar, it cannot be reused. Therefore, although such lifting devices solve the problem of steel waste, they cannot accurately control the elevation of the rebar cage. Moreover, the rebar cage may float during the concrete pouring process, which will cause the rebar cage to be too high and affect the later construction and the quality of the foundation pile.

[0004] In addition, the inability to control the top elevation of the pile during the grouting process can easily lead to the pile top being too high or the pile length being insufficient, which greatly affects the construction quality. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the integrated device and method for controlling the elevation of the pile top concrete and the lifting bar of the rebar cage provided by the present invention can not only effectively solve the problems of recyclability of the lifting bar of the rebar cage, inaccurate length of the lifting bar, and floating of the rebar cage, but also control the length error of the lifting bar to within 1cm, which can effectively solve the problem of over-pouring of concrete at the pile top.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The integrated device for controlling the concrete elevation at the top of the pile and for lifting the reinforcing cage, and its usage method, including the lifting ring, the main body of the lifting bar, the locking mechanism of the reinforcing cage, the scale assembly, the concrete elevation control device, and the fixing mechanism for the lifting bar;

[0008] The lifting ring is located at the top of the main body of the lifting bar for hoisting. The steel cage locking mechanism is located at the bottom of the main body of the lifting bar. The scale assembly is installed on one side of the main body of the lifting bar for measuring the length of the main body of the lifting bar. The steel cage locking mechanism and the scale assembly cooperate to fix the main body of the lifting bar to the steel cage. The lifting bar fixing mechanism is located at the top of the main body of the lifting bar for fixing the main body of the lifting bar to the pile hole opening. The concrete elevation control device includes a handheld alarm device. An underwater sealed probe is connected to the handheld alarm device through a waterproof wire. The handheld alarm device is located outside the pile hole opening. The underwater sealed probe is installed on the steel cage locking mechanism.

[0009] The length of the main suspension rod is adjustable;

[0010] The steel cage locking mechanism is detachably connected to the bottom of the ruler assembly.

[0011] Preferably, the main body of the suspension rod includes a fixed section outer sleeve, a fixed section adjusting rod, and a locking mechanism for locking the fixed section adjusting rod to prevent it from coming loose; the fixed section outer sleeve is a hollow structure, and its inner wall is provided with threads that match the fixed section adjusting rod, and the inner diameter of the fixed section outer sleeve matches the outer diameter of the fixed section adjusting rod; the fixed section outer sleeve and the fixed section adjusting rod are connected by threads, and the length of the main body of the suspension rod is adjusted by rotating the fixed section adjusting rod.

[0012] Preferably, the length of the outer sleeve of the fixed section and the adjusting rod of the fixed section is 50cm;

[0013] The locking mechanism can lock the outer sleeve of the fixed section to the adjusting rod of the fixed section to prevent fraying.

[0014] Preferably, the lower end of the fixed section adjusting rod is connected to a standard section, and the standard section has two lengths: a 50cm standard section and a 100cm standard section.

[0015] Preferably, the bottom of the fixed section adjusting rod is connected to the standard section or the steel cage locking mechanism.

[0016] Preferably, the scale assembly includes a scale telescopic rod with graduations, an anti-slip mechanism, a scale, and a scale positioning mechanism;

[0017] The scale positioning mechanism is set on the top of the main body of the suspension rod, and a positioning hole is provided on the scale positioning mechanism, and a scale pointer is provided at the positioning hole.

[0018] The anti-detachment mechanism is fixed to the lower part of the ruler telescopic rod.

[0019] Preferably, the rebar cage locking mechanism is a U-shaped mechanism, which includes a back plate, an upper wing plate and a lower wing plate on one side of the back plate, a reinforcing rib groove between the upper wing plate and the lower wing plate, a limiting hole for limiting the position of the scale assembly at the end of the upper wing plate, and a fixing hole for fixing the scale assembly at the end of the lower wing plate. The limiting hole, fixing hole and positioning hole are coaxial. The upper end of the scale telescopic rod passes through the positioning hole, and the lower end passes through the limiting hole and is connected to the fixing hole by a thread. The inner wall of the fixing hole is provided with a thread that matches the bottom of the scale telescopic rod. The inner diameter of the fixing hole matches the outer diameter of the bottom of the scale telescopic rod. A second connecting joint is provided at the top of the back plate.

[0020] The inner diameter of the reinforcing rib slot is larger than the diameter of the reinforcing rib.

[0021] The outer diameter of the anti-detachment mechanism is larger than the outer diameter of the limiting hole, and the distance between the anti-detachment mechanism and the limiting hole is 3cm.

[0022] Preferably, the underwater sealed probe of the concrete elevation control device includes an electric motor, and a sleeve for fixing the electric motor is sleeved on the outside of the electric motor, and the sleeve is connected to the back plate of the rebar cage locking mechanism.

[0023] Preferably, the suspension rod fixing mechanism includes a protective sleeve, a support beam, a lifting ring, and a support beam restraint mechanism fixed to the protective sleeve; the bottom of the lifting ring is provided with a first connector, and the lifting ring is connected to the top of the suspension rod body through the first connector.

[0024] The lifting ring includes a first lifting ring hole and a second lifting ring hole. The carrying pole passes through one of the lifting ring holes, and both ends of the carrying pole extend to the upper edge of the protective sleeve. A carrying pole restraint mechanism for fixing the carrying pole is provided at the upper edge of the protective sleeve.

[0025] On the other hand, this invention discloses a construction method for an integrated device for controlling the concrete elevation at the pile top and for raising the reinforcing cage, comprising the following steps:

[0026] S1. Use lifting equipment to hoist the steel cage into the pile hole and temporarily fix the steel cage at the hole opening;

[0027] S2. Calculate the distance from the borehole to the top of the pile. Select a standard section of appropriate length according to the distance. Connect the outer sleeve of the fixed section, the adjusting rod of the fixed section, and the standard section in series to form the main body of the lifting bar. The bottom of the main body of the lifting bar is connected to the locking mechanism of the steel cage.

[0028] S3. The locking mechanism of the steel cage connected to the two sets of lifting bar bodies connected in step S2 is symmetrically installed on the first reinforcing bar at the top of the steel cage through the reinforcing bar slot.

[0029] S4. Pass the lower end of the telescopic rod of the scale assembly through the limiting hole and connect it to the fixing hole through the thread; adjust the length of the scale assembly according to the calculated distance from the hole to the top of the pile, so that the upper part of the telescopic rod of the scale assembly passes through the scale positioning mechanism; adjust the length of the fixed section outer sleeve and the fixed section adjusting rod so that the scale pointer points to the calculated distance from the hole to the top of the pile; then use the locking mechanism to lock the fixed section outer sleeve and the fixed section adjusting rod to prevent the thread from coming loose.

[0030] S5. Connect the lifting equipment to the first lifting hole of the lifting ring, and simultaneously lift the two sets of lifting rods and lower the steel cage. When the cage is lowered to the level of the scale positioning mechanism and the hole, pass the stretcher through the second lifting hole of the lifting ring and the stretcher restraint mechanism to fix it. Then disassemble the equipment lifting tools to complete the lifting.

[0031] S6. Turn on the concrete elevation control device, the underwater sealed probe will operate, and start pouring concrete. When the concrete is poured to the top elevation of the pile, the coarse aggregate of the concrete will hinder the rotation of the underwater sealed probe's propeller until the propeller is jammed. At this time, the handheld alarm will sound. Turn off the power of the alarm and stop pouring concrete.

[0032] S7. Rotate the scale assembly counterclockwise to separate the lower end of the scale telescopic rod from the fixing hole. Lift the scale assembly to separate the reinforcing bar slot of the rebar cage locking mechanism from the reinforcing bar. Then, the main body of the lifting bar and the rebar cage locking mechanism can be pulled out, realizing the reuse of the scale assembly, the main body of the lifting bar and the rebar cage locking mechanism.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] (1) The suspension rods are easy to assemble and disassemble and can be recycled. In terms of the use of suspension rods, the waste of steel is eliminated and the construction cost is reduced.

[0035] (2) The reusable suspension rod adopts a fixed length plus adjustable length setting method, which can achieve accurate length adjustment. At the same time, through the precise measurement of the ruler, the precise length adjustment of the suspension rod can be further realized, solving the problems of the suspension rod length being unadjustable and the steel cage floating. This device can control the suspension rod length error within 1cm.

[0036] (3) Through the accurate measurement and adjustment of the lifting rod and the effective coordination of the concrete elevation control device, the concrete adjustment and the control of the over-pouring elevation of the pile top concrete within 5cm can be achieved, which can effectively solve the problem of over-pouring of the pile top concrete.

[0037] It offers advantages such as saving materials, precisely controlling the elevation of the reinforcing cage, preventing the reinforcing cage from floating, controlling the over-pouring height of the concrete at the top of the pile, energy saving and environmental protection, reducing construction costs, and improving construction quality. Attached Figure Description

[0038] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0039] Figure 1 This is a schematic diagram of the overall structure of the invention connected to the reinforcing cage;

[0040] Figure 2 This is a schematic diagram of the structure of the present invention;

[0041] Figure 3 This is a schematic diagram of the main fixing section and some components of the suspension rod of the present invention;

[0042] Figure 4 The diagram shows the structure of the 50cm and 100cm standard sections of this invention.

[0043] Figure 5 This is a schematic diagram of the concrete elevation control device of the present invention;

[0044] Figure 6 This is a schematic diagram of the reinforcing rib slot structure of the present invention;

[0045] Figure 7 This is a schematic diagram of the scale component of the present invention;

[0046] Figure 8 For the present invention Figure 2 A magnified structural diagram of the area marked A;

[0047] Figure 9 For the present invention Figure 7 A magnified structural diagram of the area marked B;

[0048] Figure 10 For the present invention Figure 7 A magnified structural diagram of the area marked C;

[0049] Figure 11 For the present invention Figure 2 Top view of location A;

[0050] Figure 12 This is a schematic diagram showing the relationship between the suspension rod device and the protective casing of the present invention.

[0051] In the diagram: 1-Lifting ring, 101-First lifting ring hole, 102-Second lifting ring hole, 103-First connecting joint, 2-Lifting rod body, 210-Fixed section outer sleeve, 220-Fixed section adjusting rod, 230-Locking mechanism, 240-Standard section, 3-Reinforcing cage locking mechanism, 310-Reinforcing bar slot, 311-Upper wing plate, 312-Lower wing plate, 313-Back plate, 320-Limiting hole, 330-Fixing hole, 340-Second connecting head, 4-Scale assembly, 410-Scale telescopic rod, 411-Scale rod, 420-Scale rod end connecting mechanism, 421- Button, 422-Spring plate, 430-Scale, 440-Anti-detachment mechanism, 450-Scale bottom fixing joint, 460-Scale positioning mechanism, 461-Positioning hole, 462-Scale pointer, 5-Concrete elevation control device, 501-Motor, 502-Propeller, 510-Underwater sealed probe, 520-Waterproof wire, 530-Handheld alarm, 540-Sleeve, 6-Reinforcing cage, 610-Reinforcing bar, 620-Stirrup, 630-Main bar, 7-Hanging bar fixing mechanism, 701-Casing, 702-Lever restraint mechanism, 703-Lever. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0053] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0054] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0055] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. 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.

[0056] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0057] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0058] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0059] like Figure 1-12 As shown,

[0060] The integrated device for controlling the concrete elevation at the top of the pile and for lifting the reinforcing cage, and its usage method, includes a lifting ring 1, a lifting bar body 2, a reinforcing cage locking mechanism 3, a ruler assembly 4, a concrete elevation control device 5, and a lifting bar fixing mechanism 7.

[0061] The lifting ring 1 is set on the top of the lifting bar body 2 for lifting. The rebar cage locking mechanism 3 is set on the bottom of the lifting bar body 2. The ruler assembly 4 is installed on one side of the lifting bar body 2 for measuring the length of the lifting bar body 2. The rebar cage locking mechanism 3 and the ruler assembly 4 cooperate to fix the lifting bar body 2 and the rebar cage 6 together. The lifting bar fixing mechanism 7 is set on the top of the lifting bar body 2 for fixing the lifting bar body 2 to the pile hole opening. The concrete elevation control device 5 includes a handheld alarm 530. The underwater sealed probe 510 is connected to the handheld alarm 530 through a waterproof wire 520. The handheld alarm 530 is located outside the pile hole opening. The underwater sealed probe 510 is set on the rebar cage locking mechanism 3.

[0062] The length of the main body 2 of the suspension rod is adjustable;

[0063] The bottom of the rebar cage locking mechanism 3 is detachably connected to the scale assembly 4.

[0064] The main body 2 of the suspension rod includes a fixed section outer tube 210, a fixed section adjusting rod 220, and a locking mechanism 230 for locking the fixed section adjusting rod 220 to prevent it from coming loose. The fixed section outer tube 210 has a hollow structure, and its inner wall is provided with threads that match the fixed section adjusting rod 220. The inner diameter of the fixed section outer tube 210 matches the outer diameter of the fixed section adjusting rod 220. The fixed section outer tube 210 and the fixed section adjusting rod 220 are connected by threads, and the length of the main body 2 of the suspension rod is adjusted by rotating the fixed section adjusting rod 220.

[0065] The length of the outer sleeve 210 of the fixed section and the adjusting rod 220 of the fixed section is 50cm.

[0066] The locking mechanism 230 can lock the outer sleeve 210 of the fixed section to the adjusting rod 220 of the fixed section to prevent the wire from coming loose.

[0067] It should be emphasized that the fixed section outer sleeve 210 and the fixed section adjusting rod 220 are key components of this device, which can achieve adjustment of any length with an accuracy controllable within 1cm.

[0068] The lower end of the fixed section adjusting rod 220 can be connected to the standard section 240, which has two lengths: 50cm and 100cm.

[0069] When the length of the suspension rod exceeds 1m, a standard section 240 is added to the lower part of the fixed section adjusting rod 220. A 50cm or 100cm standard section can be selected according to the specific length requirements.

[0070] It should be noted that the fixed section outer sleeve 210 and the fixed section adjusting rod 220 are necessary components of the main body 2 of the suspension rod. The fixed section outer sleeve 210 and the fixed section adjusting rod 220 are standard sizes, both with a length of 50cm. This part can provide suspension rod lengths with a spacing of 50cm-100cm. In other words, this device is not suitable when the suspension rod length is less than 50cm, because the suspension rod is too short and the steel cage can be simply fixed.

[0071] Depending on the specific length requirements, the bottom of the fixed section adjusting rod 220 can be connected to the standard section or the steel cage locking mechanism.

[0072] The scale assembly 4 includes a scale telescopic rod 410 with graduations, an anti-detachment mechanism 440, a scale 430, and a scale positioning mechanism 460;

[0073] It should be noted that the telescopic ruler 410 is composed of several interconnected ruler rods 411. Each ruler rod 411 is provided with an interconnected button 421. The button 421 is fixed to the inner wall of the end of the ruler rod 411 by a spring plate 422. Under the action of external force, the button 421 moves horizontally inward to the inside of the ruler rod 411. When connecting, the adjacent ruler rod 411 causes the button 421 to pop out from the locking hole on the side wall of the adjacent ruler rod 411, thereby connecting the two adjacent ruler rods 411. The spring plate 422 can be replaced by a spring with the same function.

[0074] The scale positioning mechanism 460 is set on the top of the suspension rod body 2. The scale positioning mechanism 460 is provided with a positioning hole 461 and a scale pointer 462 is provided at the positioning hole 461.

[0075] The anti-detachment mechanism 440 is fixed to the lower part of the scale telescopic rod 410. The anti-detachment mechanism 440 is a ring mechanism sleeved on the scale telescopic rod 410. The outer diameter of the anti-detachment mechanism 410 is larger than the outer diameter of the limiting hole 320. The distance between the anti-detachment mechanism 410 and the limiting hole 320 is 3cm.

[0076] The rebar cage locking mechanism 3 is a U-shaped mechanism. The rebar cage locking mechanism 3 includes a back plate 313. An upper wing plate 311 and a lower wing plate 312 are provided on one side of the back plate 313. A reinforcing rib groove 310 is provided between the upper wing plate 311 and the lower wing plate 312. A limiting hole 320 for limiting the position of the ruler assembly 4 is provided at the end of the upper wing plate 311. A fixing hole 330 for fixing the ruler assembly 4 is provided at the end of the lower wing plate 312. The limiting hole 320, the fixing hole 330 and the positioning hole 461 are coaxial. The upper end of the ruler telescopic rod 410 passes through the positioning hole 461 and the lower end passes through the limiting hole 320 and is connected to the fixing hole 330 by a thread. The inner wall of the fixing hole 330 is provided with a thread that matches the bottom of the ruler telescopic rod 410. The inner diameter of the fixing hole 330 matches the outer diameter of the bottom of the ruler telescopic rod 410. A second connecting joint 340 is provided on the top of the back plate 313.

[0077] The inner diameter of the reinforcing rib groove 310 is larger than the diameter of the reinforcing rib.

[0078] The underwater sealed probe 510 of the concrete elevation control device 5 includes a motor 501. A sleeve 540 for fixing the motor 501 is sleeved on the outside of the motor 501. The sleeve 540 is connected to the back plate 313 of the steel cage locking mechanism 3.

[0079] The suspension rod fixing mechanism 7 includes a protective sleeve 701, a support beam 703, a lifting ring 1, and a support beam restraint mechanism 702 fixed on the protective sleeve 701; the bottom of the lifting ring 1 is provided with a first connector 103, and the lifting ring 1 is connected to the top of the suspension rod body 2 through the first connector 103.

[0080] The lifting ring 1 includes a first lifting ring hole 101 and a second lifting ring hole 102. The carrying bar 703 passes through one of the lifting ring holes, and both ends of the carrying bar 703 extend to the upper edge of the protective sleeve 701. A carrying bar restraint mechanism 702 for fixing the carrying bar 703 is provided on the upper edge of the protective sleeve 701.

[0081] The construction method for the integrated device for controlling the concrete elevation at the pile top and the reinforcing cage lifting bars includes the following steps:

[0082] S1. Use lifting equipment to hoist the steel cage 6 into the pile hole and temporarily fix the steel cage 6 at the hole opening.

[0083] S2. Calculate the distance from the borehole to the top of the pile. Select a standard section 240 of suitable length according to the distance. Connect the fixed section outer sleeve 210, the fixed section adjusting rod 220, and the standard section 240 in series to form the main body 2 of the lifting bar. The bottom of the main body 2 of the lifting bar is connected to the locking mechanism 3 of the steel cage.

[0084] The calculation method is as follows: The pile top elevation is given in the design drawings and is assumed to be 20m. The borehole elevation is measured on-site by a level or RTK instrument and is assumed to be 25m. Then the distance from the borehole to the pile top is 25m-20m=5m.

[0085] S3. The locking mechanism 3 of the steel cage connected to the main body 2 of the two sets of suspension bars connected in step S2 is symmetrically installed on the first reinforcing bar at the top of the steel cage 6 through the reinforcing bar slot 310.

[0086] S4. Pass the lower end of the scale telescopic rod 410 of the scale assembly 4 through the limiting hole 320 and connect it to the fixing hole 330 through the thread; adjust the length of the scale assembly 4 according to the calculated distance from the hole to the top of the pile, so that the upper part of the scale telescopic rod 410 of the scale assembly 4 passes through the scale positioning mechanism 460. Adjust the length of the fixed section outer sleeve 210 and the fixed section adjusting rod 220 so that the scale pointer 462 points to the scale value of the calculated distance from the hole to the top of the pile; then use the locking mechanism 230 to lock the fixed section outer sleeve 210 and the fixed section adjusting rod 220 to prevent the thread from coming loose.

[0087] S5. Connect the lifting equipment to the first lifting hole 101 of the lifting ring 1, and simultaneously lift the two sets of lifting bar bodies 2 and lower the steel cage 6. When the cage is lowered to the level of the ruler positioning mechanism 460 and the hole, pass the lever 703 through the second lifting hole 102 of the lifting ring and the lever restraint mechanism 702 to fix it. Then disassemble the equipment lifting tool and the lifting is completed.

[0088] S6. Turn on the concrete elevation control device 5, the underwater sealed probe 510 will operate, and the concrete will be poured. When the concrete is poured to the top elevation of the pile, the coarse aggregate of the concrete will hinder the rotation of the propeller of the underwater sealed probe 510 until the propeller is jammed. At this time, the handheld alarm 530 will sound an alarm. Turn off the power of the alarm and stop the concrete pouring.

[0089] S7. Rotate the scale assembly 4 counterclockwise to separate the lower end of the scale telescopic rod 410 from the fixing hole 330. Lift the scale assembly 4 to separate the reinforcing bar slot 310 of the steel cage locking mechanism 3 from the reinforcing bar. Then, the main body of the lifting bar 2 and the steel cage locking mechanism can be pulled out, so that the scale assembly 4, the main body of the lifting bar 2 and the steel cage locking mechanism 3 can be reused.

[0090] It should be noted that this application incorporates a published patent: a cross-shaped concrete torque electronic probe device and its operation method (patent number: ZL201510348711.2), which combines the rebar cage lifting device with the pile top concrete control device. This can effectively solve problems such as the recycling of lifting bars, controlling the floating of the rebar cage, and controlling the over-pouring of concrete at the pile top. The optimized device can solve a series of technical problems in the construction of cast-in-place piles.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pile top concrete elevation control and reinforcement cage lifting bar integrated device, characterized in that: The concrete elevation control device comprises a lifting ring, a lifting bar body, a reinforcing cage locking mechanism, a scale assembly, a concrete elevation control device and a lifting bar fixing mechanism. The lifting ring is arranged at the top of the lifting bar body and used for lifting, the reinforcing cage locking mechanism is arranged at the bottom of the lifting bar body, the scale assembly is arranged at one side of the lifting bar body and used for measuring the length of the lifting bar body, the reinforcing cage locking mechanism cooperates with the scale assembly to fix the lifting bar body and the reinforcing cage together, the lifting bar fixing mechanism is arranged at the top of the lifting bar body and used for fixing the lifting bar body at the pile hole opening, and the concrete elevation control device comprises a handheld alarm instrument, an underwater sealed probe connected with the handheld alarm instrument through a waterproof wire, wherein the handheld alarm instrument is arranged outside the pile hole opening, and the underwater sealed probe is arranged on the reinforcing cage locking mechanism. The length of the lifting bar body is adjustable. The reinforcing cage locking mechanism is detachably connected with the bottom of the scale assembly. The lifting bar body comprises a fixed section outer sleeve, a fixed section adjusting rod and a locking mechanism used for locking the fixed section adjusting rod to prevent thread shedding, the fixed section outer sleeve has a hollow structure, an inner wall of the fixed section outer sleeve is provided with a thread matching the fixed section adjusting rod, the inner diameter of the fixed section outer sleeve matches the outer diameter of the fixed section adjusting rod, the fixed section outer sleeve is connected with the fixed section adjusting rod through the thread, and the length of the lifting bar body is adjusted by rotating the fixed section adjusting rod. The length of the fixed section outer sleeve and the fixed section adjusting rod is 50 cm. The locking mechanism can lock the fixed section outer sleeve and the fixed section adjusting rod to prevent thread shedding. The lower end of the fixed section adjusting rod is connected with a standard section, and the length of the standard section comprises two specifications, i.e., a 50 cm standard section and a 100 cm standard section. The bottom of the fixed section adjusting rod is connected with the standard section or the reinforcing cage locking mechanism.

2. The pile top concrete elevation control and reinforcement cage suspender integrated device according to claim 1, characterized in that: The scale assembly comprises a scale telescopic rod with a scale, an anti-shedding mechanism, a scale ruler and a scale positioning mechanism. The scale positioning mechanism is arranged at the top of the lifting bar body, a positioning hole is arranged on the scale positioning mechanism, and a scale pointer is arranged at the positioning hole. The anti-shedding mechanism is fixed at the lower part of the scale telescopic rod.

3. The pile top concrete elevation control and reinforcement cage tie bar integrated device according to claim 2, characterized in that: The reinforcing cage locking mechanism is a U-shaped mechanism, the reinforcing cage locking mechanism comprises a back plate, an upper wing plate and a lower wing plate are arranged on one side of the back plate, a reinforcing rib clamping groove is arranged between the upper wing plate and the lower wing plate, a limiting hole for limiting the position of the scale assembly is arranged at the end of the upper wing plate, a fixing hole for fixing the scale assembly is arranged at the end of the lower wing plate, the limiting hole, the fixing hole and the positioning hole are coaxial, the upper end of the scale telescopic rod passes through the positioning hole, the lower end passes through the limiting hole and is connected with the fixing hole through a thread, the inner wall of the fixing hole is provided with a thread matching the bottom of the scale telescopic rod, the inner diameter of the fixing hole matches the outer diameter of the bottom of the scale telescopic rod, and a second connecting joint is arranged at the top of the back plate. The inner diameter of the reinforcing rib clamping groove is greater than the diameter of the reinforcing rib. The outer diameter of the anti-shedding mechanism is greater than the outer diameter of the limiting hole, and the distance between the anti-shedding mechanism and the limiting hole is 3 cm.

4. The pile top concrete elevation control and reinforcement cage tie bar integrated device according to claim 3, characterized in that: The underwater sealing probe of the concrete elevation control device comprises a motor, a sleeve is arranged outside the motor to fix the motor, and the sleeve is connected with the back plate of the reinforcement cage locking mechanism.

5. The pile top concrete elevation control and reinforcement cage tie bar integrated device according to claim 4, characterized in that: The hanging reinforcement fixing mechanism comprises a sleeve, a carrying rod, a lifting ring, and a carrying rod restraint mechanism fixed on the sleeve; the bottom of the lifting ring is provided with a first connecting head, and the lifting ring is connected to the top of the hanging reinforcement main body through the first connecting head, The lifting ring comprises a first lifting ring hole and a second lifting ring hole, the carrying rod passes through one of the lifting ring holes, and the two ends of the carrying rod extend to the upper edge of the sleeve, and a carrying rod restraint mechanism is arranged at the upper edge of the sleeve to fix the carrying rod.

6. A construction method using the apparatus of claim 5, characterized by: The method comprises the following steps: S1, using a hoisting device to hoist the reinforcement cage into the pile hole, and temporarily fixing the reinforcement cage at the hole opening position; S2, calculating the distance from the hole opening to the pile top, selecting a standard section with a suitable length according to the distance, and connecting the fixed section sleeve, the fixed section adjusting rod and the standard section in series to form a hanging reinforcement main body, and connecting the bottom of the hanging reinforcement main body with the reinforcement cage locking mechanism; S3, symmetrically installing the reinforcement cage locking mechanisms connected by the two groups of hanging reinforcement main bodies of step S2 on the first reinforcing bar at the top of the reinforcement cage through the reinforcing bar clamping grooves; S4, passing the lower end of the scale telescopic rod of the scale assembly through the limiting hole and connecting it with the fixed hole through a screw; adjusting the length of the scale assembly according to the calculated distance from the hole opening to the pile top, so that the upper part of the scale telescopic rod of the scale assembly passes through the scale positioning mechanism; adjusting the length of the fixed section sleeve and the fixed section adjusting rod to make the scale pointer point to the scale value which is the calculated distance from the hole opening to the pile top; then locking the fixed section sleeve and the fixed section adjusting rod by using the locking mechanism to prevent the screw from being loosened; S5, connecting the first lifting ring hole of the lifting ring with the hoisting device, and hoisting up the two groups of hanging reinforcement main bodies to lower the reinforcement cage, when the lowering reaches the position where the scale positioning mechanism is flush with the hole opening, passing the carrying rod through the second lifting ring hole of the lifting ring and the carrying rod restraint mechanism for fixing, and then disassembling the equipment lifting device, and the hoisting is completed; S6, opening the concrete elevation control device, and operating the underwater sealing probe to start pouring concrete, when the concrete is poured to the position of the pile top elevation, the coarse aggregate of the concrete will hinder the rotation of the propeller of the underwater sealing probe until the propeller is stuck, at this time, the hand-held alarm instrument alarms, the power of the alarm instrument is turned off, and the pouring of the concrete is stopped; S7, counterclockwise rotating the scale assembly to separate the lower end of the scale telescopic rod from the fixed hole, lifting up the scale assembly, separating the reinforcing bar clamping groove of the reinforcement cage locking mechanism from the reinforcing bar, and then pulling out the hanging reinforcement main body and the reinforcement cage locking mechanism, so as to realize the repeated use of the scale assembly, the hanging reinforcement main body and the reinforcement cage locking mechanism.

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