CN110847172A - A multi-ring porous construction device for cutting off unsolidified cement concrete pile heads - Google Patents

Abstract

The invention relates to a multi-ring multi-hole construction device for cutting unset cement concrete pile heads, which comprises a fan-shaped blade box, a multi-ring multi-hole ring body and a transmission shaft, and is characterized in that the fan-shaped blade box is rotatably connected to the outer part of the transmission shaft through a bearing, the outer wall of the fan-shaped blade box is fixedly connected with the inner wall of the multi-ring multi-hole ring body, the outer side of the transmission shaft is connected with the multi-ring multi-hole ring body through a rectangular steel sheet, elliptical holes are arranged on the multi-ring multi-hole ring body, a plurality of elliptical holes are arranged on the elliptical holes, and are distributed on the multi-ring multi-hole ring body in an annular array manner, circular through holes on the ring body are matched with the elliptical holes on the multi-ring body for use, so that the multi-ring multi-hole construction device can be suitable for concrete piles with various reinforcing steel bars, the wet concrete can be wholly cut off.

Description

A multi-ring porous construction device for cutting off unsolidified cement concrete pile heads

technical field

The invention belongs to the technical field of construction and bridge construction, and in particular relates to a multi-ring and porous construction device for cutting off unsolidified cement concrete pile heads.

Background technique

During the pouring process of the concrete cast-in-place pile, due to the vibration, the cement slurry returns upward and rises together with the air bubbles inside the concrete, forming a floating slurry within a certain range of the top of the pile, so the strength of the concrete at the head of the pile is difficult to guarantee; When the concrete is lowered, the mud and mortar mixture at the pile head gathers the most, resulting in the loose concrete at the pile head, and the strength does not meet the requirements. Therefore, the actual elevation of the pile head during construction of the concrete cast-in-place pile is 500-1000mm higher than the design elevation.

At present, the artificial pile head is usually to remove the useless concrete above the pile elevation with an air pick or other cutting equipment, and then strip out the main reinforcement in the reinforcement cage. This method is time-consuming, labor-intensive, inefficient, and prone to excessive bending of the reinforcement. At the same time, a large amount of dust is easily generated in the process of chiseling, which not only pollutes the environment, but also poses a great harm to the health of construction workers. The mechanical pile head is to use multiple modules combined to adapt to piles of different sizes. Multiple modules are connected in parallel around the pile to squeeze the same section of the pile at the same time through the hydraulic pipeline, so as to realize the cracking of the concrete of the section. , this method will require different devices due to the different positions and quantities of the main reinforcement bars, and the flexibility is poor, and at the same time, a large amount of concrete debris is generated, which is not easy to clean.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a multi-annular porous construction device for cutting off unsolidified cement concrete pile heads, so as to solve the problem that the existing pile heads have high construction strength, low efficiency, relatively large damage to steel bars, and are prone to produce a large number of concrete fragments. crumb problem.

In order to achieve the above object, the present invention provides the following technical solutions: a multi-ring porous construction device for cutting off unsolidified cement concrete pile heads, comprising a fan-shaped blade box, a multi-ring porous annular body, and a transmission shaft, characterized in that the The outside of the transmission shaft is rotatably connected with a fan-shaped blade box through a bearing, the outer wall of the fan-shaped blade box is fixedly connected with the inner wall of the multi-ring porous annular body, and the outer side of the transmission shaft and the multi-ring porous annular body are connected by a rectangular steel sheet. connected, the multi-ring porous annular body is provided with elliptical holes, a number of elliptical holes are arranged in total, and a plurality of the elliptical holes are distributed on the top of the multi-ring porous annular body in an annular array shape, The bottom end of the multi-ring porous annular body is provided with ring pieces, and there are three ring pieces in total. The centers of the three ring pieces are located at the same point, and the three ring pieces are rotatably connected by bearings. , the ring piece is provided with circular through holes corresponding to the number and position of the elliptical holes, and when one of the ring pieces is rotated, a circular through hole corresponding to the position of the steel bars appears at the bottom of the elliptical hole on the multi-ring porous toroid. , the redundant space of the oval hole is blocked by the ring piece to prevent the concrete from seeping up; the diameter of the circular through hole is controlled at 20-26mm, which can adapt to the diameter of the steel bar required by the project; the width of the multi-ring porous ring body exceeds the protection of the concrete pile The sum of the thickness of the layer and the diameter of the steel bar; a fan-shaped blade is placed in the fan-shaped blade box, the fan-shaped blade is provided with several, and a number of the fan-shaped blades are superimposed and placed, and the fan-shaped blade at the bottom layer is fixedly connected with the transmission shaft, except for the bottom layer. The root of the outer fan-shaped blade is movably connected with the transmission shaft through the bearing structure, the side of the fan-shaped blade is provided with a linkage baffle, the transmission shaft drives the bottom fan-shaped blade to rotate, and the linkage baffle drives the other fan-shaped blades to be displayed in turn. or withdraw.

Preferably, the upper end of the transmission shaft is provided with a level bubble and a lifting ring.

Preferably, a plurality of the rectangular steel sheets are provided, and the plurality of the rectangular steel sheets are distributed on the outer wall of the transmission shaft in a ring-shaped array, and the interior of the rectangular steel sheets is provided with a water pipe and a micro vibrator.

Preferably, the number and position of the linkage baffles on the plurality of sector blades correspond to each other, the linkage baffles are located on both sides of the sector blades, the thickness of the linkage baffles on the sides is greater than the thickness of the sector blades, and each of the plurality of sector blades The fan-shaped blades above and below can be driven by the linkage baffle on the side.

Preferably, a motor is installed on the top end of the transmission shaft, the motor is rotatably connected to the transmission shaft through a rotating shaft, and a support frame is fixedly installed on the outer side of the motor.

Preferably, the transmission shaft and the rectangular steel sheet are provided with water pipes, the lower end of the transmission shaft and the bottom and side surfaces of the rectangular steel sheet are provided with water spray holes, and the lower end of the transmission shaft and the water spray holes on the bottom surface of the rectangular steel sheet When inclined upward, the water spray holes on the side of the rectangular steel sheet are inclined downward, the end of the water pipe extends to the water spray hole, and the initial end of the water pipe is connected to a high-pressure water source through a pipe.

Preferably, an electromagnetic spring is provided between the root ring of the fan-shaped blade on the top layer and the inner upper wall of the fan-shaped blade box.

Compared with the prior art, the present invention has the following beneficial effects:

(1) In the present invention, the circular through holes on the ring sheet are used in conjunction with the elliptical holes on the multi-ring porous toroid, which can be applied to concrete piles with various reinforcement numbers, positions, diameters, and distributions, with strong flexibility and a wide range of applications. wide. The diameter of the circular through hole of the present invention can be adapted to the diameter of the steel bar required by the project. According to the actual distribution of the steel bar in the cement concrete pile, the circular through hole above the ring piece can be adjusted by adjusting the corresponding ring pieces on the bottom surface of the multi-ring porous toroid. Corresponding to the elliptical holes on the multi-ring porous annular body, the excess space of the elliptical holes is blocked by the remaining ring pieces, which can adapt to the distribution of steel bars in various quantities and positions.

(2) The present invention utilizes the combination of the fan-shaped blade and the multi-ring porous annular body, which can cut off the wet concrete as a whole. The fan-shaped blade is expanded in turn through the linkage baffle to form an approximate circular plane, which is used in combination with the multi-ring porous toroid whose width exceeds the sum of the thickness of the concrete pile protection layer and the diameter of the steel bar, which can simply and efficiently divide the concrete at the elevation into The upper and lower parts are convenient for the overall removal of the concrete above the elevation in the later stage, and the section is approximately flat, the construction efficiency is high, the construction period is shortened, and the cost is low.

(3) The side of the fan-shaped blade adopted in the present invention is provided with a linkage baffle, so that adjacent fan-shaped blades can be mutually driven and retracted. The other fan-shaped blades are driven to expand and retract to form an approximate plane, which can realize the folding and shrinking of the fan-shaped blades, reduce the volume of the device, save space, and effectively cut off the concrete as a whole.

(4) The fan-shaped blade of the device of the present invention cuts off the concrete before it is solidified, which can reduce dust and noise, prevent the concrete residue from splashing, and ensure the health and safety of the construction workers. Secondary utilization of solidified concrete avoids secondary cleaning of concrete and reduces engineering waste.

(5) The micro-vibrator in the rectangular steel sheet of the device of the present invention can level the device, ensure that the divided concrete surface is approximately a plane, and make the concrete under the elevation vibrated to enhance the strength of the concrete, In addition, the micro-vibrator is activated when cleaning the fan blades to remove concrete residues from the gap between the blades.

(6) The device of the present invention can adjust the expansion and contraction of the electromagnetic spring when the fan-shaped blade is unfolded and cleaned, stretches when the fan-shaped blade is unfolded, and squeezes the fan-shaped blade to make it more compact so that the fan-shaped blade will not fall off during the unfolding process. The fan-shaped blade shrinks in the process of retracting, so that the fan-shaped blade is loosened, which is beneficial to cleaning the concrete residue between the gaps of the fan-shaped blade, so as to reduce the damage to the device.

(7) After the device of the present invention cuts off the concrete, the water spray holes can repeatedly clean the concrete residues on the fan-shaped blade and other components, so as to prevent the device from being damaged in the later stage and ensure that the device can be used normally again.

Description of drawings

Fig. 1 is the overall schematic diagram of the present invention;

2 is a schematic diagram of the bottom surface of the circular through hole adjustment of the present invention;

Fig. 3 is the fan-shaped blade unfolding process diagram of the present invention;

4 is a schematic diagram of a fan-shaped blade of the present invention;

5 is a sectional view of a fan-shaped blade box of the present invention;

Fig. 6 is a fan-shaped blade linkage effect diagram of the present invention;

Fig. 7 is the rectangular steel sheet schematic diagram of the present invention;

Figure 8 is a construction effect diagram of the present invention.

In the picture: 1- Sector blade box, 2- Oval hole, 3- Multi-ring porous ring body, 4- Transmission shaft, 5- Rectangular steel sheet, 6- Water jet hole, 7- Hanging ring, 8- Level bubble, 9-ring piece, 10-linked baffle plate, 11-sector blade, 12-round through hole, 13-miniature vibrator, 14-electromagnetic spring, 15-motor, 16-support frame.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-8, the present invention provides the following technical solutions: a multi-ring porous construction device for cutting off unsolidified cement concrete pile heads, comprising a fan-shaped blade box 1, a multi-ring porous annular body 3, and a transmission shaft 4 , is characterized in that, the outside of the transmission shaft 4 is rotatably connected with the fan-shaped blade box 1 through the bearing, the outer wall of the fan-shaped blade box 1 is fixedly connected with the inner wall of the multi-ring porous annular body 3, and the outer side of the transmission shaft 4 is connected with the multi-ring porous circular ring body. The ring bodies 3 are connected by a rectangular steel sheet 5, and the multi-ring porous circular ring body 3 is provided with elliptical holes 2, and a number of elliptical holes 2 are arranged in total. The top of the annular body 3 and the bottom end of the multi-ring porous annular body 3 are provided with a ring piece 9. There are three ring pieces 9 in total. The bearing is rotatably connected, the ring piece 9 is provided with circular through holes 12 corresponding to the number and position of the oval holes 2, and when one of the ring pieces 9 is rotated, the bottom of the oval hole 2 on the multi-ring porous annular body 3 appears with the steel bar. The circular through hole 12 corresponding to the position, the excess space of the oval hole 2 is blocked by the remaining ring pieces 9 to prevent concrete from seeping up; the diameter of the circular through hole 12 is controlled at 20-26mm, which can adapt to the diameter of the steel bar required by the project; The circular through hole 12 on the sheet 9 is used in conjunction with the oval hole 2 on the multi-ring porous toroid 3, and can be applied to concrete piles with various reinforcement numbers, positions, diameters and distributions; Sector blades 11, there are several sector blades 11, several sector blades 11 are stacked and placed, the bottom sector blade 11 is fixedly connected with the transmission shaft 4, and the root of the sector blades 11 except the bottom layer can be connected to the transmission shaft 4 through the bearing structure. The side of the fan blade 11 is provided with a linkage baffle 10, the transmission shaft 4 drives the bottom fan blade 11 to rotate, and then the linkage baffle 10 drives the other sector blades 11 to be displayed or retracted in sequence. The width of the multi-ring porous annular body 3 exceeds the sum of the thickness of the concrete pile protection layer and the diameter of the steel bar. The expanded fan-shaped blade 11 is used in combination with the multi-ring porous annular body 3, which can cut off the wet concrete as a whole.

The upper end of the transmission shaft 4 is provided with a level bubble 8 and a lifting ring 7 .

A plurality of rectangular steel sheets 5 are provided, and the plurality of rectangular steel sheets 5 are distributed on the outer wall of the transmission shaft 4 in an annular array.

The number and position of the linkage baffles 10 on the plurality of sector blades 11 correspond to each other, the linkage baffles 10 are located on both sides of the sector blades 11, the thickness of the side linkage baffles 10 is greater than the thickness of the sector blades 11, and several sector blades 11 Each of them can drive the fan-shaped blades 11 above and below it to move through the linkage baffle 10 on the side.

A motor 15 is installed on the top of the transmission shaft 4 , and the motor 15 is rotatably connected to the transmission shaft 4 through a rotating shaft. A support frame 16 is fixedly installed on the outer side of the motor 15 .

The transmission shaft 4 and the rectangular steel sheet 5 are provided with water pipes. The lower end of the transmission shaft 4 and the bottom and side surfaces of the rectangular steel sheet 5 are provided with water spray holes 6. The water spray holes 6 on the lower end of the transmission shaft 4 and the bottom surface of the rectangular steel sheet 5 are upward Inclined, the water spray hole 6 on the side of the rectangular steel sheet 5 is inclined downward, the end of the water pipe extends to the water spray hole 6, and the initial end of the water pipe is connected to a high-pressure water source through a pipe.

An electromagnetic spring 14 is provided between the root ring of the fan-shaped blade 11 on the top layer and the inner upper wall of the fan-shaped blade box 1 .

The working principle and use process of the present invention: when the present invention is in use, the concrete is poured, and the concrete is poured into the concrete mold to the elevation; the circular through hole 12 is adjusted according to the position and distribution of the steel bars, by rotating the multi-ring porous annular body 3. One of the three ring pieces 9 on the lower side, so that the circular through hole 12 above corresponds to the position of the steel bar, and the circular through hole 12 corresponding to the steel bar coincides with the oval hole 2 for the steel bar to pass through, Rotate the remaining ring pieces 9 so that the non-circular through-hole part coincides with the oval-shaped hole 2, and close the part without steel bars on the oval-shaped hole 2 to prevent the infiltration of concrete in the later stage. In order to ensure that the circular through-hole 12 can insert the steel bar, The diameter of the circular through hole 12 is controlled at 20-26mm, which can adapt to the diameter of the steel bar required by the project; place the device, pass the steel bar through the pre-adjusted circular through hole 12, and then place the device at the elevation of the concrete pile head; steel bar protection , After the device is placed at the elevation, put a PVC casing on the steel bar above the elevation. The upper and lower openings of the casing are blocked with soft elastic materials and fixed with iron wires to fix the PVC casing and prevent concrete from infiltrating into the pipe; supplementary irrigation Pile head, continue to pour concrete above the device until it reaches 500-1000mm above the elevation; the device is leveled, and the micro-vibrator 13 on the corresponding rectangular steel sheet 5 is activated according to the specific construction conditions to level the device. The leveling bubble 8 at the upper end of the transmission shaft 4 is level judged; the fan-shaped blade 11 is displayed, and the motor 15 placed on the upper end of the transmission shaft 4 is activated to drive the transmission shaft 4 to rotate, and the transmission shaft 4 drives the bottom fan-shaped blade 11 to display, and passes through the fan-shaped blade. The linkage baffle 10 on the edge of the 11 makes the remaining fan blades 11 displayed in sequence; for waste recycling, the device and the excess concrete above the device are taken away through the lifting ring 7 with a hoist, and the device is cleaned and recycled; the fan blades are cleaned, and the motor is adjusted 15 The reverse direction makes the fan-shaped blade 11 retract. During this process, the lower end of the transmission shaft 4 and the water spray holes 6 on the side and bottom of the rectangular steel sheet 5 spray water to clean the concrete residues on the upper and lower sides of the fan-shaped blade 11; The water pipe cleans the concrete residue on the multi-ring porous ring body 3 and the transmission shaft 4 to reduce the damage to the device; repeat cleaning, after the preliminary cleaning, the fan blade 11 is expanded and retracted repeatedly, and the concrete residue on the fan blade 11 is cleaned repeatedly. , and repeat the cleaning of the residual concrete on the whole unit.

When placing the device, the fan-shaped blade 11 and the fan-shaped blade box 1 have a certain thickness, and the thickness can be controlled within 50mm, and the device is placed within 50mm below the concrete level.

When the device is leveled, the level is determined according to the level bubble 8 at the upper end of the transmission shaft 4, and then the micro-vibrator 13 in the rectangular steel sheet 5 at the corresponding position is activated to level the device.

The electromagnetic spring 14 is controlled by the control power supply. When the fan-shaped blade 11 is displayed, it is energized and stretched, so that the linkage effect of the fan-shaped blade 11 is better. When cleaning the fan-shaped blade 11, it shrinks to make the fan-shaped blade 11 slightly loose, which is more conducive to cleaning the fan-shaped blade. Concrete residue between the gaps between the blades 11.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. without more restrictions. An element defined by the phrase "comprising an... does not preclude the presence of additional identical elements in a process, method, article or apparatus comprising said element".

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (7)

1. The utility model provides a cut porous construction equipment of multiple ring of unset cement concrete pile head, includes fan-shaped blade box (1), the porous tourus of multiple ring (3), transmission shaft (4), its characterized in that, there is fan-shaped blade box (1) transmission shaft (4) outside through bearing rotatable coupling, the outer wall of fan-shaped blade box (1) and the inner wall fixed connection of the porous tourus of multiple ring (3), the outside of transmission shaft (4) links to each other through rectangle steel sheet (5) with the porous tourus of multiple ring (3), be equipped with oval hole (2) on the porous tourus of multiple ring (3), oval hole (2) are provided with a plurality of altogether, a plurality of oval hole (2) are annular array form and distribute on the porous tourus of multiple ring (3), the bottom of the porous tourus of multiple ring (3) is equipped with ring piece (9), ring piece (9) are provided with threely, the centers of the three ring pieces (9) are located at the same point, the three ring pieces (9) are rotatably connected through a bearing, circular through holes (12) corresponding to the elliptical holes (2) in number and position are formed in the ring pieces (9), one of the ring pieces (9) is rotated, the circular through holes (12) corresponding to the positions of the reinforcing steel bars appear at the bottoms of the elliptical holes (2) in the multi-ring porous circular ring body (3), and redundant gaps of the elliptical holes (2) are blocked by the ring pieces (9) to prevent concrete from permeating upwards; the diameter of the circular through hole (12) is controlled to be 20-26mm, so that the diameter of the steel bar can be adapted to the diameter of the engineering required steel bar; the width of the multi-ring porous ring body (3) exceeds the sum of the thickness of the concrete pile protective layer and the diameter of the reinforcing steel bar; fan-shaped blade (11) have been placed in fan-shaped blade box (1), fan-shaped blade (11) are provided with a plurality of, a plurality of fan-shaped blade (11) stack is placed, the bottom fan-shaped blade (11) and transmission shaft (4) fixed connection, and the root of fan-shaped blade (11) except the bottom layer passes through bearing structure and is movably connected with transmission shaft (4), the side of fan-shaped blade (11) is equipped with linkage baffle (10), transmission shaft (4) drive fan-shaped blade (11) of bottom rotate, and linkage baffle (10) drive other fan-shaped blade (11) and demonstrate in proper order or withdraw.

2. The multi-ring multi-hole construction device for cutting the unset cement concrete pile head according to claim 1, wherein: the upper end of the transmission shaft (4) is provided with a leveling bubble (8) and a hanging ring (7).

3. The multi-ring multi-hole construction device for cutting the unset cement concrete pile head according to claim 1, wherein: the rectangular steel sheet (5) is provided with a plurality of rectangular steel sheets (5) which are distributed on the outer wall of the transmission shaft (4) in an annular array shape, and a water service pipe and a micro-vibrator (13) are arranged inside the rectangular steel sheets (5).

4. The multi-ring multi-hole construction device for cutting the unset cement concrete pile head according to claim 1, wherein: the number position of linkage baffle (10) on a plurality of fan-shaped blade (11) corresponds each other, and linkage baffle (10) are located the both sides of fan-shaped blade (11), and the thickness of the linkage baffle (10) of side is greater than the thickness of fan-shaped blade (11), and every in a plurality of fan-shaped blade (11) all can drive fan-shaped blade (11) motion of its top and below through linkage baffle (10) of side.

5. The multi-ring multi-hole construction device for cutting the unset cement concrete pile head according to claim 1, wherein: motor (15) are installed on the top of transmission shaft (4), motor (15) are through pivot and transmission shaft (4) rotatable coupling, the outside fixed mounting of motor (15) has support frame (16).

6. The multi-ring multi-hole construction device for cutting the unset cement concrete pile head according to claim 3, wherein: the water supply pipe is arranged inside the transmission shaft (4) and the rectangular steel sheet (5), water spraying holes (6) are formed in the lower end of the transmission shaft (4), the bottom surface of the rectangular steel sheet (5) and the side surfaces of the transmission shaft (4), the water spraying holes (6) in the lower end of the transmission shaft (4) and the bottom surface of the rectangular steel sheet (5) are inclined upwards, the water spraying holes (6) in the side surfaces of the rectangular steel sheet (5) are inclined downwards, the tail end of the water supply pipe extends to the water spraying holes (6), and the initial end of the water supply pipe is connected with a high.

7. The multi-ring multi-hole construction device for cutting the unset cement concrete pile head according to claim 1, wherein: an electromagnetic spring (14) is arranged between the root ring of the top fan-shaped blade (11) and the inner upper wall of the fan-shaped blade box (1).

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