A reusable steel cage anti-floating device capable of detecting over-filling of concrete

Abstract

The present invention provides a reusable anti-floating device for a steel cage that can detect over-filling of concrete, comprising: a base, an extension component, a mounting seat, a rope measuring component and a test component. The lower end of the base is fixed with a test component for detecting over-filling of concrete, the upper end of the extension component is movably inserted with a mounting seat, and the upper side of the mounting seat is movably mounted with a rope measuring component for detecting over-filling of concrete. Compared with the prior art, the present invention has the following beneficial effects: the test component for detecting over-filling of concrete is combined with the base and the extension component for anti-floating of the steel cage. This innovative design not only solves the problem that the steel cage body is easily floated due to the length of the empty pile, but also ensures the control of the amount of over-filling of concrete, thereby ensuring the construction quality of the engineering pile. In addition, the materials of the device are all common materials on the market, which effectively reduces the project cost, improves the project efficiency, and provides a reliable solution for engineering construction.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete pouring equipment, and in particular relates to a reusable steel cage anti-floating device capable of detecting over-pouring of concrete. Background Art

[0002] Bored piles are a common method for reinforcing the foundations of buildings. With urban development, the demand for basements is increasing, and basements are often deeper. However, the top elevation of a bored pile is usually lower than the bottom elevation of the basement. For ease of construction, the in-situ rotary drilling process is often used. This practice can easily lead to the problem of bored piles being too long. Excessively long bored piles can cause the steel cage to float during concrete pouring. In addition, using the traditional measuring rope method to test the over-concrete height can result in large errors. Therefore, we hope to design a steel cage anti-floating device with a new structure to solve this problem. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention aims to provide a reusable anti-floating device for steel cages that can detect over-pouring of concrete and solve the problems raised in the above-mentioned background technology.

[0004] The present invention is achieved through the following technical solutions: a reusable steel cage anti-floating device capable of detecting over-filling of concrete, comprising: a base, an extension component, a mounting seat, a rope measuring component, and a testing component; the base is movably mounted on the upper side of the upper end of the steel cage body; the upper end of the extension component at the uppermost end of the base is fixedly connected to the inner wall of the upper end of the external steel casing via a U-shaped clip; and a plurality of extension components for adjusting the length are movably mounted on the upper side of the base;

[0005] A test assembly for detecting over-filling of concrete is fixed at the lower end of the base, a mounting seat is movably installed at the upper end of the extension assembly, and a rope measuring assembly for detecting over-filling of concrete is movably installed on the upper side of the mounting seat.

[0006] As a preferred embodiment, the base includes a channel steel, a steel ring, and a reinforcement rib. The inner wall of the steel ring is welded with a reinforcement rib. The reinforcement rib is a regular hexagonal structure. Three channel steels are welded to the inner side of the reinforcement rib in three equal parts. The three channel steels are welded to the inner wall of the steel ring in three equal parts through the reinforcement rib.

[0007] A baffle plate is welded to the inner side of the upper ends of the three channel steels. The upper ends of the three channel steels are open, and one side of the opening of the channel steel is flush with the outer wall of the baffle plate. The upper end of the channel steel away from the baffle plate is provided with three linearly distributed fixing holes from top to bottom.

[0008] A positioning plate 1 is horizontally welded inside the upper side of the first channel steel, the outer end of the first positioning plate is flush with the outer wall of the first baffle, the distance between the upper side of the first positioning plate and the lower end of the baffle is not less than 15 cm, and the middle of the lower end of the three channel steels is recessed upward to form a slot;

[0009] The slot is an inverted V-shaped structural slot. The lower end of the three channel steels is clamped with the circular steel ring at the upper end of the steel cage body through the slot. In actual use, the reinforcement ribs 1 and 2 are both welded by six threaded steel bars with a diameter of 18 mm to form a regular hexagonal structure. The length and diameter of the threaded steel bars can be flexibly selected according to actual use. The channel steel 1 and the channel steel 2 both adopt a 14a model channel steel, and its model can also be selected as needed. The steel ring 1 and the steel ring 2 are both formed by rolling and welding 100 mm wide and 2 mm thick flat steel, and its diameter can be made according to actual use requirements.

[0010] As a preferred embodiment, the extension assembly includes channel steel 2, steel ring 2 and reinforcing rib 2. The inner wall of the steel ring 2 is welded with reinforcing rib 2, and the reinforcing rib 2 is a regular hexagonal structure. Three channel steels 2 distributed in three equal parts are welded on the inner side of the reinforcing rib 2. The three channel steels 2 are welded to the inner wall of the steel ring 2 in three equal parts through the reinforcing rib 2.

[0011] Baffle 2 is welded to the inner side of the upper ends of the three channel steels 2, and the upper ends of the three channel steels 2 are open. One side of the opening on the side of the channel steel 2 is flush with the outer wall of the baffle 2. Three linearly distributed fixing holes 2 are opened from top to bottom on the upper end of the channel steel 2 away from the baffle 2. In actual use, a circular hole with a diameter of 10 cm is opened on the side of the top of each channel steel 2 close to the steel ring 2. A U-shaped clip is used to connect the top of the channel steel 2 to the external steel casing through the circular hole. The circular hole is used to fix the extension component, so that the base and the steel cage body can be positioned to improve the anti-floating performance of the entire device.

[0012] As a preferred embodiment, a second positioning plate is horizontally welded inside the upper side of the second channel steel, the outer end of the second positioning plate is flush with the outer wall of the second baffle, and the distance between the upper side of the second positioning plate and the lower end of the second baffle is not less than 15 cm;

[0013] The structure and size of the second steel ring are the same as those of the first steel ring, the structure and size of the second reinforcement rib are the same as those of the first reinforcement rib, and the structure and size of the upper end of the first channel steel are the same as those of the upper end of the second channel steel;

[0014] The length of the channel steel two is greater than that of the channel steel one. A square tube is welded to the lower end of each of the three channel steel twos. The cross-sectional length and width of the square tube match the length and width of the inner wall of the baffle two welded to the upper end of the channel steel two. The height of the square tube matches the distance between the baffle two and the top of the channel steel two.

[0015] As a preferred embodiment, the mounting seat includes an insert plate, a mounting ring, and an insert sleeve. Three insert plates distributed in three equal parts are welded to the inner wall of the mounting ring. The welding positions of the three insert plates match the welding positions of the three slots 2.

[0016] The cross-sectional dimension of the insert plate matches that of the square tube, and the height of the insert plate is greater than that of the square tube. An insert tube is welded on the right side of the upper surface of the mounting ring, and an angular hole is provided inside the upper end of the insert tube.

[0017] As a preferred embodiment, the test assembly includes round steel 1, a steel buoy, round steel 2, flat steel, and an axial pressure sensor. The axial pressure sensor is fixed to the lower end of the flat steel, and round steel 2 is installed at the lower end of the axial pressure sensor. The axis of the round steel 2 is collinear with the axis of the axial pressure sensor.

[0018] A steel buoy is fixed to the lower end of the round steel No. 2, and a round steel No. 1 is welded to the inner part of the flat steel near the channel steel No. 1. The side of the round steel No. 1 near the channel steel No. 1 is fixedly connected to the inner wall of the channel steel No. 1. The height of the lower end of the steel buoy is flush with the height of the lower end of the channel steel. In actual use, the diameters of the round steel No. 1 and the round steel No. 2 are both 8mm, the diameter of the flat steel is 100mm, and the size of the steel buoy is an outer diameter of 100mm, an inner diameter of 10mm, a height of 100mm, and a wall thickness of 2.35mm. It has an outer closed and inner hollow structure. The steel buoy is fixed to the bottom of the base by a round steel No. 1 with a diameter of 8mm, so that it can float up and down along the steel cage body. The top of the concrete over-pouring test device adopts a diameter of 100mm. The flat steel is connected to the axial pressure sensor, and the flat steel is fixed to the bottom of one of the channel steels on the base by welding with a round steel with a diameter of 8mm. The axial pressure sensor is connected to the external control system for real-time monitoring of the over-pouring of concrete. The connection method and signal transmission method of the axial pressure sensor and the external control system are existing and will not be repeated here. The size of the steel float can be adjusted according to the specific gravity of the mud. The weight of the steel float and the buoyancy generated by the mud on it can be equal. The main principle is to use the different buoyancy of concrete and cement slurry. The force of the steel float to float and squeeze the axial pressure sensor is different. The different signals sent by the axial pressure sensor are used to judge whether the concrete over-pouring height meets the requirements.

[0019] As a preferred embodiment, the rope measuring assembly includes an insertion rod, a crank handle, a mounting frame, an I-shaped wheel and a plumb bob. The lower end of the mounting frame is welded with an insertion rod, and the lower end of the insertion rod is provided with a ridge rod. The lower end of the insertion rod is movably inserted into the upper end of the insertion tube through the ridge rod.

[0020] A crank is rotatably mounted on the front side of the mounting frame, a rotating shaft is rotatably mounted on the left side of the mounting frame, the rotating connection portion between the crank and the mounting frame is fixedly connected to the front end of the rotating shaft, and a small gear is connected to the outer wall key of the rotating shaft near one end of the crank.

[0021] As a preferred embodiment, an I-shaped wheel is rotatably mounted inside the right side of the mounting frame, a large gear is keyed to the front side of the I-shaped wheel, and the large gear is meshed and connected to the small gear. A guide hole is formed by penetrating downwards through the bottom of the left end of the mounting frame, and a guide cylinder is welded to the upper side of the inner wall of the left front end of the mounting frame;

[0022] A locking rod is slidably inserted into the guide cylinder, a tip is provided at the lower end of the rod, a handle is provided at the upper end of the rod, and the tip is movably inserted into the tooth groove of the pinion gear;

[0023] A rope is wound around the middle of the I-shaped wheel, and the I-shaped wheel is fixedly connected to the upper end of the plumb bob through the rope and the ring. The plumb bob is teardrop-shaped as a whole. The rope is movably passed through the guide hole, and a distance mark is provided on the outer wall of the rope.

[0024] After adopting the above technical solution, the beneficial effects of the present invention are as follows: by providing a base, an extension component and a test component, the test component for testable concrete over-pouring is combined with the base and the extension component for the anti-floating of the steel cage. This innovative design not only solves the problem that the steel cage body is easily floated due to the empty pile being too long, but also ensures the control of the amount of concrete over-pouring, thereby ensuring the construction quality of the engineering pile. In addition, the materials of this device are all common materials on the market, which effectively reduces project costs, improves project benefits, and provides a reliable solution for engineering construction.

[0025] The setting of the rope test component improves the traditional rope test method. This method is only used temporarily when the test component fails. It can ensure that the entire pouring process continues and does not need to be stopped for maintenance due to test component failure, providing protection for engineering construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 The present invention is a schematic diagram of the overall structure of a reusable steel cage anti-floating device capable of detecting concrete over-pouring.

[0028] Figure 2 The present invention is a schematic diagram of the connection between the base and the extension component of a reusable steel cage anti-floating device capable of detecting concrete over-pouring.

[0029] Figure 3 The present invention is a schematic diagram of the base structure of a reusable steel cage anti-floating device capable of detecting concrete overfilling.

[0030] Figure 4 The diagram is a schematic diagram of the extended component structure of a reusable steel cage anti-floating device capable of detecting concrete over-pouring.

[0031] Figure 5 The present invention is a schematic diagram of the connection between a mounting base and a rope detection assembly of a reusable steel cage anti-floating device capable of detecting concrete overfilling.

[0032] Figure 6 The present invention is a schematic diagram of a rope detection component structure of a reusable steel cage anti-floating device capable of detecting concrete overfilling and reusable steel cage anti-floating device.

[0033] Figure 7 The figure is a schematic diagram of a test assembly structure of a reusable steel cage anti-floating device capable of detecting concrete overfilling and a reusable steel cage anti-floating device according to the present invention.

[0034] Figure 8 The present invention is a schematic diagram of a plumb bob structure of a reusable steel cage anti-floating device capable of detecting concrete overfilling.

[0035] Figure 9 This is a schematic diagram of the connection between the extension component of the present invention and the external steel casing.

[0036] In the figure, 100-reinforcement cage body;

[0037] 200-base, 210-channel steel 1, 211-baffle 1, 212-fixing hole 1, 213-positioning plate 1, 214-slot, 220-steel ring 1, 230-reinforcement rib 1;

[0038] 300- extension assembly, 310- channel steel 2, 311- baffle 2, 312- fixing hole 2, 313- positioning plate 2, 314- square tube, 315- fixing hole 3, 320- steel ring 2, 330- reinforcing rib 2;

[0039] 400-mounting seat, 410-insertion plate, 420-mounting ring, 430-insertion tube;

[0040] 500-rope measurement assembly, 510-insertion rod, 520-crank handle, 530-mounting frame, 531-guide hole, 532-guide cylinder, 540-spool, 550-locking rod, 560-rotating shaft, 570-pinion gear, 580-large gear, 590-plumb bob, 591-lifting ring, 592-rope;

[0041] 600-test assembly, 610-round steel 1, 620-steel buoy, 630-round steel 2, 640-flat steel, 650-axial pressure sensor. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0043] See also Figures 1 to 9 The present invention provides a technical solution: a reusable steel cage anti-floating device capable of detecting over-filling of concrete, comprising: a base 200, an extension component 300, a mounting base 400, a rope measuring component 500, and a testing component 600. The base 200 is movably mounted on the upper side of the upper end of the steel cage body 100. The upper end of the extension component 300 at the uppermost end of the base 200 is fixedly connected to the inner wall of the upper end of the external steel casing via a U-shaped buckle. A plurality of extension components 300 for adjusting the length are movably mounted on the upper side of the base 200.

[0044] A test assembly 600 for detecting over-filling of concrete is fixed at the lower end of the base 200, a mounting seat 400 is movably mounted on the upper end of the extension assembly 300, and a rope measuring assembly 500 for detecting over-filling of concrete is movably mounted on the upper side of the mounting seat 400.

[0045] See also Figures 1 to 4 The base 200 includes a channel steel 210, a steel ring 220, and a reinforcing rib 230. The inner wall of the steel ring 220 is welded with a reinforcing rib 230. The reinforcing rib 230 is a regular hexagonal structure. Three channel steels 210 are welded to the inner wall of the steel ring 220 in three equal parts. The three channel steels 210 are welded to the inner wall of the steel ring 220 in three equal parts through the reinforcing rib 230.

[0046] A baffle 211 is welded to the inner side of the upper end of each of the three channel steels 210. The upper ends of the three channel steels 210 are open, and one side of the opening of the side of the channel steel 210 is flush with the outer wall of the baffle 211. Three fixing holes 212 are linearly distributed from top to bottom on the upper end of the channel steel 210 away from the baffle 211.

[0047] A positioning plate 213 is welded horizontally to the inner portion of the upper side of the channel steel 210. The outer end of the positioning plate 213 is flush with the outer wall of the baffle 211. The distance between the upper side of the positioning plate 213 and the lower end of the baffle 211 is not less than 15 cm. The middle of the lower end of the three channel steels 210 is recessed upward to form a slot 214.

[0048] The clamping groove 214 is an inverted V-shaped structural groove. The lower ends of the three channel steels 210 are clamped with the circular steel ring at the upper end of the steel cage body 100 through the clamping groove 214. In actual use, the reinforcement rib 1 230 and the reinforcement rib 2 330 are both welded by six threaded steel bars with a diameter of 18 mm to form a regular hexagonal structure. The length and diameter of the threaded steel bars can be flexibly selected according to actual use. The channel steel 1 210 and the channel steel 2 310 both adopt a 14a model channel steel, and its model can also be selected as needed. The steel ring 1 220 and the steel ring 2 320 are both rolled and welded with 100 mm wide and 2 mm thick flat steel 640, and its diameter can be made according to actual use requirements.

[0049] The extension assembly 300 includes a second channel steel 310, a second steel ring 320, and a second reinforcement rib 330. The second reinforcement rib 330 is welded to the inner wall of the second steel ring 320. The second reinforcement rib 330 has a regular hexagonal structure. Three second channel steels 310 are welded to the inner wall of the second reinforcement rib 330 in three equal parts. The three second channel steels 310 are welded to the inner wall of the second steel ring 320 in three equal parts through the second reinforcement rib 330.

[0050] Baffle 2 311 is welded to the inner side of the upper end of the three channel steels 2 310. The upper ends of the three channel steels 2 310 are open. One side of the opening on the side of the channel steel 2 310 is flush with the outer wall of the baffle 2 311. Three linearly distributed fixing holes 2 312 are opened from top to bottom on the upper end of the channel steel 2 310 away from the baffle 2 311. In actual use, a circular hole with a diameter of 10 cm is opened on the side of the top of each channel steel 2 310 close to the steel ring 2 320. A U-shaped clip is used to connect the top of the channel steel 2 310 to the external steel casing through the circular hole. The circular hole is used to fix the extension component 300, so as to position the base 200 and the steel cage body 100 to improve the anti-floating performance of the entire device.

[0051] A second positioning plate 313 is horizontally welded to the inner side of the upper side of the second channel steel 310. The outer end of the second positioning plate 313 is flush with the outer wall of the second baffle 311. The distance between the upper side of the second positioning plate 313 and the lower end of the second baffle 311 is not less than 15 cm.

[0052] The structure and size of the second steel ring 320 are the same as those of the first steel ring 220 , the structure and size of the second reinforcement rib 330 are the same as those of the first reinforcement rib 230 , and the structure and size of the upper end of the first channel steel 210 are the same as those of the upper end of the second channel steel 310 ;

[0053] The length of channel steel 2 310 is greater than that of channel steel 1 210. A square tube 314 is welded to the lower end of each of the three channel steels 2 310. The cross-sectional length and width of the square tube 314 match the length and width of the inner wall of the baffle 2 311 welded to the upper end of the channel steel 2 310. The height of the square tube 314 matches the distance between the baffle 2 311 and the top of the channel steel 2 310.

[0054] As a first embodiment of the present invention, by providing a base 200 and an extension component 300, in actual use, the base 200 abuts against the steel bars at the upper end of the steel cage through the three channel steels 210 thereon, so as to achieve the purpose of fixing the steel cage, and the overall length of the extension component 300 and the base 200 can be adjusted according to the actual empty pile length. When the extension component 300 is added to the upper side of the base 200, the upper sides of the three channel steels 210 on the base 200 are aligned with the square tubes 314 at the lower ends of the three channel steels 2 310 on the extension component 300, and the three square tubes 314 are processed and inserted into the upper sides of the three channel steels 210 respectively until the bottoms of the three square tubes 314 abut against the upper sides of the positioning plates 213 on the upper sides of the channel steels 210. At this time, the surface extension component 300 is aligned with the base 200, and can be fixed by bolts through the fixing holes 212 on the channel steel 210 and the fixing holes 315 on the square tubes 314.

[0055] After the installation is completed, the baffle 1 211 located on the upper side of the channel steel 1 210 can limit and strengthen the square tube 314 to improve the bending resistance. If an extension component 300 needs to be added to the upper side of the base 200, the installation method is the same as the above method. The square tube 314 at the lower end of the subsequent extension component 300 is inserted into the upper side of the required extension component 300 until it abuts against the baffle 2 311, and then fixed in the same way. The present invention only needs to weld and assemble the raw materials as required, without other complicated processes. After the production of the present invention is completed, wait for When the steel cage body 100 is lowered to the bottom of the hole, a sling is used to place it on the top of the steel cage body 100, and then the U-shaped clip is used to connect and fix it to the steel casing. By dividing the entire reusable steel cage anti-floating device into a base 200 and multiple extension components 300, the entire device has strong flexibility in use and can cope with empty pile lengths of different sizes, greatly improving the reusability of the entire device. There is no need to subsequently produce steel cage anti-floating devices matching empty pile lengths of different sizes on site, saving production time and helping to improve engineering pouring efficiency.

[0056] The following are the steps in the actual construction of the present invention:

[0057] 1. Measurement and layout

[0058] Before construction, GPS is used to measure and place the position of each pile. Before drilling, a total station is used to determine the center position of the pile. During drilling, control points are often used to check the pile hole position using a total station or a cross line.

[0059] 2. Casing burial

[0060] The casing adopts a 9m deep casing and is buried according to the staked-out pile position (using a cross-controlled pile position). The casing needs to be 0.3m above the ground, with a slurry opening left at the top of the casing. The center of the casing should coincide with the center of the measured pile position, and the deviation should be controlled within 50mm.

[0061] 3. Mud Preparation

[0062] During the drilling process, the mud indicators should be adjusted in time according to geological changes; before pouring concrete, the relative density of the mud within 500mm of the bottom of the hole should be less than 1.25; the sand content should not be greater than 8%, and the viscosity should not be greater than 28s.

[0063] 4. Hole forming construction

[0064] The foundation pit engineering pile holes are drilled using a rotary drilling rig. After the rotary drilling rig is in place, the pile position is checked to ensure accurate positioning. After slurrying is completed, drilling is started at a low speed. Normal drilling begins after the entire drill bit enters the soil layer. During the drilling process, the deviation of the pile position is checked regularly and corrected in time to ensure that the pile position deviation, axis and vertical axis direction do not exceed 50mm, and the verticality deviation is not more than 1%.

[0065] 5. Clearing the Holes

[0066] (1) First hole cleaning: After the hole reaches the required depth, the diameter, depth and verticality are fully inspected and qualified. Then the hole is cleaned by positive cycle method. After the hole cleaning is completed and the self-inspection is qualified, the various parameters of the pile hole are measured together with the supervision engineer.

[0067] (2) Second hole cleaning: After hoisting the steel cage and conduit, and before pouring underwater concrete, the performance indicators of the mud in the hole and the thickness of the sediment at the bottom of the hole should be checked again. If they do not meet the requirements, a second hole cleaning should be carried out.

[0068] The mud indicators and the thickness of the open space sediment after the above-mentioned primary and secondary hole cleaning should meet the design requirements.

[0069] 6.Reinforcement cage production and splicing

[0070] The existing base 200 and the extension component 300 are assembled according to the actual length of the empty pile (if none of the splicing schemes meet the empty pile length requirements, the steel cage can be produced on site according to the design drawings).

[0071] 7. Steel cage hoisting

[0072] According to the weight of the steel cage and on-site working conditions, select appropriate crane and sling to lift and lower the steel cage.

[0073] 8. Anti-floating steel cage

[0074] After the steel cage is lowered to the designed elevation and fixed with hanging bars, the crane for hoisting the steel cage is used to lift the device of the present invention (attached to the specification) Figure 1 ) Hoist and lower to the top of the steel cage.

[0075] 9. Concrete pouring

[0076] Calculate the first pouring amount according to the actual construction situation on site, and pour the bored piles. During the pouring process, the buried depth of the conduit should be controlled at 2 to 6 meters. After the concrete is poured to a certain height, the concrete will fill the steel buoy 620 of this device (attached to the instruction manual). Figure 3 ) After floating, the axial pressure sensor 650 is squeezed, and the pouring can be stopped when the pressure gauge data changes (if the axial pressure sensor 650 fails, the mounting base 400 and the rope measuring component 500 can be installed, and the rope measuring component 500 can be used for detection to ensure that the pouring can proceed smoothly).

[0077] Please refer to 1 to Figure 3 、 Figure 7 The mounting base 400 includes an insert plate 410, a mounting ring 420, and an insert tube 430. The inner wall of the mounting ring 420 is welded with three insert plates 410 distributed in three equal parts. The welding positions of the three insert plates 410 match the welding positions of the three slots 2.

[0078] The cross-sectional dimensions of the insert plate 410 match those of the square tube 314 , and the height of the insert plate 410 is greater than that of the square tube 314 . An insert tube 430 is welded to the right side of the upper surface of the mounting ring 420 , and an angular hole is provided inside the upper end of the insert tube 430 .

[0079] Test assembly 600 includes round steel 1 610, steel buoy 620, round steel 2 630, flat steel 640, and axial pressure sensor 650. Axial pressure sensor 650 is fixed to the lower end of flat steel 640, and round steel 2 630 is mounted to the lower end of axial pressure sensor 650. The axis of round steel 2 630 is collinear with the axis of axial pressure sensor 650.

[0080] The lower end of round steel 630 is fixed with steel buoy 620, and the inner part of flat steel 640 close to channel steel 210 is welded with round steel 610. The side of round steel 610 close to channel steel 210 is fixedly connected to the inner wall of channel steel 210. The height of the lower end of steel buoy 620 is flush with the height of the lower end of channel steel 210. In actual use, the diameters of round steel 610 and round steel 630 are both 8mm, the diameter of flat steel 640 is 100mm, and the dimensions of steel buoy 620 are 100mm outer diameter, 10mm inner diameter, 100mm height, and 2.3mm wall thickness. 5mm, with an externally closed and internally hollow structure. The steel buoy 620 is fixed to the bottom of the base 200 via an 8mm diameter round steel 610, allowing it to float up and down along the steel cage body 100. The top of the concrete overfilling test device is connected to an axial pressure sensor 650 using a 100mm diameter flat steel 640. The flat steel 640 is fixed to the bottom of one of the channel steels 210 on the base 200 by welding with an 8mm diameter round steel 630. The axial pressure sensor 650 is connected to an external control system for real-time monitoring of concrete overfilling.

[0081] The connection method and signal transmission method between the axial pressure sensor 650 and the external control system are existing and will not be elaborated here. The size of the steel float 620 can be adjusted according to the specific gravity of the mud. The weight of the steel float 620 and the buoyancy generated by the mud on it can be equal. The main principle is to use the difference between the buoyancy of concrete and the buoyancy of cement slurry. The force of the steel float 620 to float and squeeze the axial pressure sensor 650 is different. The different signals sent by the axial pressure sensor 650 are used to judge whether the concrete over-pouring height meets the requirements.

[0082] As the second embodiment of the present invention, based on the above-mentioned first embodiment, the setting of the test component 600, the test component 600 in combination with the base 200 and the extension component 300 can effectively prevent the occurrence of the steel cage floating phenomenon. At the same time, the concrete over-pouring height test replaces the traditional manual combined measuring rope method, improves the accuracy of the test, ensures the quality of the pile foundation, reduces the consumption of concrete, and increases the benefits of the project. The main raw materials are 14a channel steel, flat steel 640, steel bars and axial pressure sensors 650, and the materials are all common materials on the market, which makes the manufacturing cost of the entire device lower, which helps to reduce the construction cost of engineering construction.

[0083] See also Figure 1 、 Figure 2 、 Figures 5 to 8 The rope measuring assembly 500 includes an insert rod 510, a crank handle 520, a mounting frame 530, an I-shaped wheel 540 and a plumb bob 590. The insert rod 510 is welded to the lower end of the mounting frame 530. The lower end of the insert rod 510 is provided with a ridge rod. The lower end of the insert rod 510 is movably inserted into the upper end of the insert tube 430 through the ridge rod.

[0084] A crank 520 is rotatably mounted on the front side of the mounting frame 530, and a rotating shaft 560 is rotatably mounted on the left side of the mounting frame 530. The rotating connection part between the crank 520 and the mounting frame 530 is fixedly connected to the front end of the rotating shaft 560, and a small gear 570 is connected to the outer wall key of the rotating shaft 560 near one end of the crank 520.

[0085] A spool 540 is rotatably mounted within the right side of the mounting frame 530. A large gear 580 is keyed to the front of the spool 540. The large gear 580 is meshed with a small gear 570 for transmission connection. A guide hole 531 is formed downwardly through the bottom of the left end of the mounting frame 530. A guide cylinder 532 is welded to the upper side of the inner wall of the left front end of the mounting frame 530.

[0086] A locking rod 550 is slidably inserted into the guide cylinder 532. The lower end of the insertion rod 510 is provided with a tip, and the upper end of the insertion rod 510 is provided with a handle. The tip is movably inserted into the tooth groove of the pinion 570.

[0087] A rope 592 is wound around the middle of the I-shaped pulley 540. The I-shaped pulley 540 is fixedly connected to the upper end of the plumb bob 590 through the rope 592 and the ring 591. The plumb bob 590 is teardrop-shaped as a whole. The rope 592 is movably inserted into the guide hole 531, and a distance mark is set on the outer wall of the rope 592.

[0088] As the third embodiment of the present invention, based on the above second embodiment, the setting of the rope measuring assembly 500 improves the traditional rope measuring method. In actual use, if the pressure shaft pressure sensor 650 fails, the user can directly quickly insert the mounting base 400 installed with the test assembly 600 into the upper end of the extension assembly 300, so that the plug plate 410 is plugged into the upper end of the second channel steel 310, and the mounting ring 420 is abutted against the upper end of the second channel steel 310, thereby quickly installing the mounting base 400 on the upper end of the extension assembly 300, and then the handle 5 can be shaken. 20 drives the small gear 570 on the front side of the rotating shaft 560 to rotate. Since the small gear 570 is meshed with the large gear 580 for transmission connection, the large gear 580 is driven to rotate, thereby driving the spool 540 to rotate and lower the wound rope 592. The rope 592 passes through the rotating shaft 560 and enters the guide hole 531. Under the action of the plumb bob 590 at the end, it is vertically downward (the plumb bob 590 will not contact any parts on the extension component 300 or the base 200 when it falls, and will not affect the pouring of concrete). The length of the rope 592 lowered is determined by the length of the pile.

[0089] After lowering to the specified length, the locking rod 550 is inserted downward to lock the small gear 570, thereby fixing the length of the rope 592. Since the outer wall of the rope 592 is provided with a distance mark (the distance mark can be set as a conspicuous mark, and the distance mark can be accurate to centimeters, which is convenient for controlling the retraction and extension length of the rope 592), after the concrete reaches the bottom of the plumb bob 590, the bottom of the plumb bob 590 has a supporting force, and its downward and retracting force will be weakened. The part of the rope 592 at the position of the rotating shaft 560 will become loose. Once looseness occurs, it means that the concrete has been poured to the bottom position of the plumb bob 590, and the pouring can be stopped. This method is only used temporarily when the test component 600 fails. It can ensure that the entire pouring process continues and does not need to be stopped for maintenance due to a failure of the test component 600, providing protection for engineering construction.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A reusable steel cage anti-floating device capable of detecting overfilling of concrete, comprising: A base (200), an extension component (300), a mounting seat (400), a rope measuring component (500) and a test component (600), wherein the base (200) is movably mounted on the upper side of the upper end of the steel cage body (100), and the upper end of the extension component (300) at the uppermost end of the base (200) is fixedly connected to the inner wall of the upper end of the external steel casing through a U-shaped buckle, characterized in that a plurality of extension components (300) for adjusting the length are movably mounted on the upper side of the base (200); The base (200) comprises a channel steel (210), a test assembly (600) for detecting overfilling of concrete is fixed at the lower end of the base (200), a mounting seat (400) is movably inserted at the upper end of the extension assembly (300), and a rope measuring assembly (500) for detecting overfilling of concrete is movably mounted on the upper side of the mounting seat (400); The extension component (300) includes a second channel steel (310), a second steel ring (320) and a second reinforcing rib (330). The inner wall of the second steel ring (320) is welded with a second reinforcing rib (330). The second reinforcing rib (330) is a regular hexagonal structure. Three second channel steels (310) distributed in three equal parts are welded on the inner side of the second reinforcing rib (330). The three second channel steels (310) are welded to the inner wall of the second steel ring (320) in three equal parts through the second reinforcing rib (330). The inner sides of the upper ends of the three channel steels (310) are all welded with baffle plates (311). The upper ends of the three channel steels (310) are designed to be open. One side of the side opening of the channel steel (310) is flush with the outer wall of the baffle plate (311). The upper end of the channel steel (310) is away from the side of the baffle plate (311) and is provided with three linearly distributed fixing holes (312) from top to bottom. A second positioning plate (313) is welded transversely to the interior of the upper side of the second channel steel (310), the outer end of the second positioning plate (313) is flush with the outer wall of the second baffle (311), and the distance between the upper side of the second positioning plate (313) and the lower end of the second baffle (311) is not less than 15 cm; The test assembly (600) includes round steel 1 (610), a steel float (620), round steel 2 (630), a flat steel (640), and an axial pressure sensor (650), wherein the axial pressure sensor (650) is fixed to the lower end of the flat steel (640), and the round steel 2 (630) is installed at the lower end of the axial pressure sensor (650), and the axis of the round steel 2 (630) is collinear with the axis of the axial pressure sensor (650); A steel buoy (620) is fixed to the lower end of the round steel 2 (630), and the flat steel (640) is welded to the round steel 1 (610) near the inner side of the channel steel 1 (210). The side of the round steel 1 (610) near the channel steel 1 (210) is fixedly connected to the inner wall of the channel steel 1 (210), and the height of the lower end of the steel buoy (620) is flush with the height of the lower end of the channel steel 1 (210).

2. The reusable anti-floating device for steel cage capable of detecting overfilling of concrete as claimed in claim 1, characterized in that: The base (200) further comprises a steel ring (220) and a reinforcing rib (230), wherein the inner wall of the steel ring (220) is welded with the reinforcing rib (230), wherein the reinforcing rib (230) is a regular hexagonal structure, and three channel steels (210) distributed in three equal parts are welded on the inner side of the reinforcing rib (230), wherein the three channel steels (210) are welded to the inner wall of the steel ring (220) in three equal parts through the reinforcing rib (230); A baffle plate 1 (211) is welded to the inner side of the upper ends of the three channel steels 1 (210), and the upper ends of the three channel steels 1 (210) are designed to be open. One side of the side opening of the channel steel 1 (210) is flush with the outer wall of the baffle plate 1 (211), and three fixing holes 1 (212) are opened from top to bottom on the side away from the baffle plate 1 (211). A positioning plate (213) is welded transversely to the interior of the upper side of the channel steel (210), the outer end of the positioning plate (213) is flush with the outer wall of the baffle (211), the distance between the upper side of the positioning plate (213) and the lower end of the baffle (211) is not less than 15 cm, and the middle of the lower ends of the three channel steels (210) are recessed upward to form a slot (214); The clamping groove (214) is an inverted V-shaped structural groove, and the lower ends of the three channel steels (210) are clamped with the circular steel ring at the uppermost end of the steel cage body (100) through the clamping groove (214).

3. The reusable anti-floating device for steel cage capable of detecting overfilling of concrete as claimed in claim 1, characterized in that: The structure and size of the second steel ring (320) are the same as those of the first steel ring (220), the structure and size of the second reinforcement rib (330) are the same as those of the first reinforcement rib (230), and the structure and size of the upper end portion of the first channel steel (210) are the same as those of the upper end portion of the second channel steel (310); The length of the second channel steel (310) is greater than the length of the first channel steel (210), and a square tube (314) is welded to the lower end of each of the three second channel steels (310). The cross-sectional length and width of the square tube (314) match the length and width of the inner wall of the baffle plate 2 (311) welded to the upper end of the second channel steel (310), and the height of the square tube (314) matches the distance between the baffle plate 2 (311) and the top of the second channel steel (310).

4. The reusable anti-floating device for steel cage capable of detecting overfilling of concrete as claimed in claim 3, characterized in that: The mounting seat (400) comprises an insert plate (410), a mounting ring (420) and an insert cylinder (430); three insert plates (410) distributed in three equal parts are welded to the inner wall of the mounting ring (420); the welding positions of the three insert plates (410) match the welding positions of the three slots 2; The cross-sectional dimensions of the insert plate (410) match those of the square tube (314), and the height of the insert plate (410) is greater than that of the square tube (314). An insert tube (430) is welded to the right side of the upper surface of the mounting ring (420), and an angular hole is provided inside the upper end of the insert tube (430).

5. The reusable anti-floating device for steel cage capable of detecting overfilling of concrete as claimed in claim 4, characterized in that: The rope measuring assembly (500) includes an inserting rod (510), a crank handle (520), a mounting frame (530), an I-shaped wheel (540), and a plumb bob (590). The lower end of the mounting frame (530) is welded with an inserting rod (510). The lower end of the inserting rod (510) is provided with a ridge rod. The lower end of the inserting rod (510) is movably inserted into the upper end of the inserting tube (430) through the ridge rod. A crank handle (520) is rotatably mounted on the front side of the mounting frame (530), and a rotating shaft (560) is rotatably mounted on the left side of the mounting frame (530). The rotating connection portion between the crank handle (520) and the mounting frame (530) is fixedly connected to the front end of the rotating shaft (560), and a pinion (570) is keyed to the outer wall of one end of the rotating shaft (560) close to the crank handle (520).

6. The reusable anti-floating device for steel cage capable of detecting overfilling of concrete as claimed in claim 5, characterized in that: An I-shaped wheel (540) is rotatably mounted inside the right side of the mounting frame (530), a large gear (580) is keyed to the front side of the I-shaped wheel (540), and the large gear (580) is meshed and transmission-connected with the small gear (570). A guide hole (531) is formed through the bottom of the left end of the mounting frame (530), and a guide cylinder (532) is welded to the upper side of the inner wall of the left front end of the mounting frame (530); A locking rod (550) is slidably inserted into the guide cylinder (532), a tip is provided at the lower end of the insertion rod (510), a handle is provided at the upper end of the insertion rod (510), and the tip is movably inserted into the tooth groove of the pinion (570); A rope (592) is wound around the middle of the I-shaped wheel (540). The I-shaped wheel (540) is fixedly connected to the upper end of a plumb bob (590) via the rope (592) and a hanging ring (591). The plumb bob (590) is in a teardrop-shaped structure. The rope (592) is movably inserted into the guide hole (531). A distance mark is provided on the outer wall of the rope (592).

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