Cast-in-place pile hole forming device

Abstract

The utility model relates to the technical field of cast-in-place pile hole forming, and provides a cast-in-place pile hole forming device which comprises a hollow pipe and further comprises a movable pipe movably embedded in the hollow pipe, and two L-shaped plates are symmetrically and fixedly installed on the outer surface, close to the top, of the movable pipe. The hydraulic telescopic rod is controlled by the controller to start and stretch, the movable pipe is pushed to slide downwards along the interior of the hollow pipe, the rotating rod is inserted into soil, the motor is synchronously controlled by the controller to start, the output shaft of the motor drives the rotating rod to rotate, the spiral piece is synchronously driven to rotate, and drilling operation can be conducted on the soil; and under the cooperation of a movable pipe and a spiral piece, soil can be conveyed upwards, a scraper blade can be driven to rotate through rotation of a rotating rod synchronously, the soil can be dispersed to the periphery in time, in this way, the soil can be discharged out of a hole while drilling is conducted, the soil cleaning difficulty is lowered, and then the hole forming efficiency of the cast-in-place pile is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bored pile hole forming, in particular to a bored pile hole forming device. Background Art

[0002] A cast-in-place pile refers to a pile foundation in which a long cylindrical hole is first drilled in the ground, then concrete is poured in, and the pole tower and foundation connectors are pre-buried. Cast-in-place piles can be divided into bored cast-in-place piles, pipe sinking cast-in-place piles, manually dug cast-in-place piles, and explosive expansion cast-in-place piles according to the different hole-forming methods; according to the different hole-forming processes, cast-in-place piles can be divided into dry-hole cast-in-place piles, mud-wall cast-in-place piles, and manually dug cast-in-place piles. Cast-in-place piles have the advantages of no vibration, no soil squeezing, low noise, and are suitable for use in densely built urban areas, and are widely used in construction.

[0003] In the prior art, for example, the Chinese patent number is: CN218912791U, which is a new bored pile hole forming device, including a thick cylinder, a moving cylinder is arranged in the thick cylinder, a driving motor is installed near the bottom of the inner wall of the moving cylinder, a drill bit is movably connected to the bottom of the moving cylinder through a bearing, the bottom end of the output shaft of the driving motor is fixedly connected to the top of the drill bit, a first threaded rod is arranged in the moving cylinder, the top end of the first threaded rod is movably connected to the top of the inner cavity of the thick cylinder through a bearing, and extends through the inner ring of the bearing to the top of the thick cylinder and is fixedly connected to a worm wheel, a worm is meshed at the rear of the worm wheel, and a first servo motor is fixedly connected to the right end of the worm wheel. The practical new type makes the device stable in use and easy to drill holes through a series of structures.

[0004] Although the above scheme has the above advantages, the disadvantage of the above scheme is that although it can drive the first threaded rod to rotate in the forward and reverse directions through the first servo motor, the worm gear and the worm, the first limit block makes the movable cylinder unable to rotate with the first threaded rod, thereby realizing the upward and downward displacement of the movable cylinder to drive the drill bit to drill holes. It is convenient to use, but it cannot discharge the soil from the hole, so that when the drill bit is taken out of the hole, the soil will fall back into the hole, thereby increasing the difficulty of soil cleaning and reducing the efficiency of bored pile drilling. Utility Model Content

[0005] The object of the present utility model is to solve the problem existing in the prior art that although it can drive the first threaded rod to rotate in both forward and reverse directions through the first servo motor, worm gear and worm, and at the same time, due to the action of the first limit block, the moving cylinder cannot rotate with the first threaded rod, so as to realize the up and down displacement of the moving cylinder to drive the drill bit to drill holes, which is convenient to use. However, it cannot discharge the soil from the holes, so that when the drill bit is taken out from the holes, the soil will fall back into the holes again, thus increasing the difficulty of soil cleaning and further reducing the efficiency of hole forming for cast-in-place piles.

[0006] In order to achieve the above object, the present utility model adopts the following technical solutions: A hole forming device for cast-in-place piles, comprising: a hollow tube, and further comprising:

[0007] A movable tube, movably embedded inside the hollow tube. Two L-shaped plates are symmetrically and fixedly installed on the outer surface of the movable tube near the top. A square frame is fixedly installed on the top of the two L-shaped plates. A rotating rod is movably embedded at the center of the bottom of the square frame. A spiral blade is fixedly wound on the outer surface of the rotating rod. The outer surface of the spiral blade is movably embedded inside the movable tube. A motor is fixedly installed on the top inner wall of the square frame. The output end of the motor is fixedly installed at one end of the rotating rod.

[0008] Preferably, a plurality of support rods are arranged in a circumferential array on the outer surface of the hollow tube. Vertical rods are fixedly installed at the tops of the plurality of support rods near the top of the hollow tube. The tops of the plurality of vertical rods are fixedly installed at the bottom of the cross-shaped plate away from the center. Through the above settings, it is convenient to install the hydraulic telescopic rod.

[0009] Preferably, a hydraulic telescopic rod is fixedly embedded at the center of the top of the cross-shaped plate. One end of the hydraulic telescopic rod is fixedly installed at the center of the top of the square frame. The hydraulic telescopic rod is controlled by a controller to start and extend, so as to push the square frame to move downward.

[0010] Preferably, a plurality of sliding strips are fixedly installed in a circumferential array on the inner wall of the hollow tube. A plurality of sliding grooves are arranged in a circumferential array on the outer surface of the movable tube. The outer surfaces of the plurality of sliding strips are respectively movably embedded inside the plurality of sliding grooves. With the cooperation of the sliding grooves and the sliding strips, a certain guiding effect is achieved.

[0011] Preferably, a plurality of scraping plates are fixedly installed in a circumferential array on the outer surface of the rotating rod near the square frame. The number of the plurality of scraping plates is three. Through the rotation of the scraping plates, the soil can be timely dispersed to the surrounding.

[0012] Preferably, support disks are fixedly installed at the bottoms of the plurality of support rods. Two inserting rods are symmetrically and movably embedded at the tops of the plurality of support disks. Through the above settings, it is convenient to fix this device.

[0013] Preferably, a ring is rotatably connected to the bottom of the movable pipe, and a plurality of crushing blades are fixedly installed at the bottom of the ring in a circumferential array. By driving the rotation of the crushing blades through the ring, the soil below the movable pipe, that is, the soil at the edge of the hole, can be crushed.

[0014] Preferably, a plurality of round rods are fixedly installed on the inner wall of the ring in a circumferential array, and one ends of the plurality of round rods are fixedly installed on the outer surface of the rotating rod away from the square frame in a circumferential array. By rotating the rotating rod, the round rods can be driven to rotate, and the ring can be synchronously driven to rotate.

[0015] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0016] 1. In the present utility model, by controlling the hydraulic telescopic rod to start through the controller, it is extended, pushing the square frame downward, driving the movable pipe to slide downward along the inside of the hollow pipe, and synchronously making the slide block slide inside the chute, so that the rotating rod is inserted into the soil. Synchronously, by controlling the motor to start through the controller, its output shaft drives the rotating rod to rotate, and synchronously drives the spiral blade to rotate, so as to drill the soil. And with the cooperation of the movable pipe and the spiral blade, the soil can be conveyed upward. Synchronously, by rotating the rotating rod, the scraper can be driven to rotate, and the soil can be timely dispersed to the surrounding. In this way, the soil can be discharged from the hole while drilling, thereby reducing the difficulty of soil cleaning and further improving the hole-forming efficiency of the cast-in-place pile.

[0017] 2. In the present utility model, by rotating the rotating rod, the round rods can be driven to rotate, and synchronously drive the ring and the crushing blades to rotate. By rotating the crushing blades, the soil below the movable pipe, that is, the soil at the edge of the hole, can be crushed, which is convenient for inserting the movable pipe into the hole and thus convenient for the soil to be discharged from the hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic side view structure diagram of a hole-forming device for cast-in-place piles provided by the present utility model;

[0019] Figure 2 It is a schematic bottom view structure diagram of a hole-forming device for cast-in-place piles provided by the present utility model;

[0020] Figure 3 It is a schematic cross-sectional structure diagram of a hole-forming device for cast-in-place piles provided by the present utility model;

[0021] Figure 4 It is a hole-forming device for cast-in-place piles provided by the present utility model Figure 3 The enlarged structure diagram at A in it.

[0022] Legend Explanation:

[0023] 1. Hollow tube; 101. Support rod; 102. Support plate; 103. Insert rod; 104. Movable tube; 105. Slide groove; 106. Slide bar; 2. Vertical rod; 201. Cross-shaped plate; 202. Hydraulic telescopic rod; 203. Square frame; 204. Rotating rod; 205. Scraper; 206. Motor; 207. L-shaped plate; 208. Spiral piece; 3. Round rod; 301. Ring; 302. Crushing blade. Detailed implementation mode

[0024] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0025] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0026] Embodiment 1, as Figures 1 to 4 shown, the present invention provides a device for forming a hole in a cast-in-place pile, including: a hollow tube 1, and further including: a movable tube 104, movably embedded inside the hollow tube 1. Two L-shaped plates 207 are symmetrically and fixedly installed on the outer surface of the movable tube 104 near the top. The tops of the two L-shaped plates 207 are fixedly installed with a square frame 203. A rotating rod 204 is movably embedded at the center of the bottom of the square frame 203. A spiral piece 208 is fixedly wound on the outer surface of the rotating rod 204. The outer surface of the spiral piece 208 is movably embedded inside the movable tube 104. A motor 206 is fixedly installed on the top inner wall of the square frame 203. The output end of the motor 206 is fixedly installed at one end of the rotating rod 204. A plurality of support rods 101 are arranged in a circumferential array on the outer surface of the hollow tube 1. A vertical rod 2 is fixedly installed at the top of each of the plurality of support rods 101 near the top of the hollow tube 1. The tops of the plurality of vertical rods 2 are fixedly installed at the bottom of the cross-shaped plate 201 away from the center. A hydraulic telescopic rod 202 is fixedly embedded at the center of the top of the cross-shaped plate 201. One end of the hydraulic telescopic rod 202 is fixedly installed at the center of the top of the square frame 203. A plurality of slide bars 106 are fixedly installed in a circumferential array on the inner wall of the hollow tube 1. A plurality of slide grooves 105 are arranged in a circumferential array on the outer surface of the movable tube 104. The outer surfaces of the plurality of slide bars 106 are respectively movably embedded inside the plurality of slide grooves 105. A plurality of scrapers 205 are fixedly installed in a circumferential array on the outer surface of the rotating rod 204 near the square frame 203. The number of the plurality of scrapers 205 is three. The bottoms of the plurality of support rods 101 are fixedly installed with support plates 102. Two insert rods 103 are symmetrically and movably embedded at the top of each of the plurality of support plates 102.

[0027] In this embodiment, the device is fixed by inserting the insertion rod 103 into the soil. Then, the controller is used to control the hydraulic telescopic rod 202 to start and extend, pushing the square box 203 downward. With the cooperation of the L-shaped plate 207, the movable pipe 104 is driven to slide downward along the inside of the hollow pipe 1, and at the same time, the slide bar 106 slides inside the chute 105. With the cooperation of the chute 105 and the slide bar 106, a certain guiding effect is achieved, so that the rotating rod 204 is inserted into the soil. At the same time, the controller is used to control the motor 206 to start, and its output shaft drives the rotating rod 204 to rotate, synchronously driving the spiral blade 208 to rotate, so as to drill the soil. With the cooperation of the movable pipe 104 and the spiral blade 208, the soil can be conveyed upward. At the same time, with the rotation of the rotating rod 204, the scraping plate 205 can be driven to rotate. Through the rotation of the scraping plate 205, the soil can be timely dispersed around, so that the soil can be discharged from the hole while drilling, thus reducing the difficulty of soil cleaning and improving the efficiency of bored pile hole formation.

[0028] Embodiment 2, as Figures 1 to 4 shown, a circular ring 301 is rotatably connected to the bottom of the movable pipe 104. A plurality of crushing blades 302 are fixedly installed at the bottom of the circular ring 301 in a circumferential array. A plurality of round rods 3 are fixedly installed on the inner wall of the circular ring 301 in a circumferential array. One ends of the plurality of round rods 3 are fixedly installed on the outer surface of the rotating rod 204 away from the square box 203 in a circumferential array.

[0029] In this embodiment, through the rotation of the rotating rod 204, the round rod 3 can be driven to rotate, synchronously driving the circular ring 301 and the crushing blades 302 to rotate. Through the rotation of the crushing blades 302, the soil below the movable pipe 104, that is, the soil at the edge of the hole, can be crushed, which is convenient for inserting the movable pipe 104 into the hole, thus facilitating the discharge of soil from the hole.

[0030] Working principle: When in use, the device is fixed by inserting the insertion rod 103 into the soil. Then, the hydraulic telescopic rod 202 is controlled by the controller to start and extend, pushing the square box 203 downward. With the cooperation of the L-shaped plate 207, the movable pipe 104 is driven to slide downward along the inside of the hollow pipe 1, and simultaneously the slide bar 106 slides inside the chute 105. With the cooperation of the chute 105 and the slide bar 106, a certain guiding effect is achieved, enabling the rotating rod 204 to be inserted into the soil. At the same time, the motor 206 is controlled by the controller to start, and its output shaft drives the rotating rod 204 to rotate, simultaneously driving the spiral blade 208 to rotate, so as to drill the soil. With the cooperation of the movable pipe 104 and the spiral blade 208, the soil can be transported upward. At the same time, with the rotation of the rotating rod 204, the scraper 205 can be driven to rotate. Through the rotation of the scraper 205, the soil can be timely dispersed around, so that the soil can be discharged from the hole while drilling, thereby reducing the difficulty of soil cleaning and further improving the efficiency of bored pile hole formation. At the same time, with the rotation of the rotating rod 204, the round rod 3 can be driven to rotate, simultaneously driving the ring 301 and the crushing blade 302 to rotate. Through the rotation of the crushing blade 302, the soil below the movable pipe 104, that is, the soil at the edge of the hole, can be crushed, which is convenient for inserting the movable pipe 104 into the hole and thus convenient for the soil to be discharged from the hole.

[0031] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A bored pile hole forming device, comprising: The hollow tube (1) is characterized by further comprising: A movable tube (104) is movably embedded in the interior of the hollow tube (1); two L-shaped plates (207) are symmetrically fixedly mounted on the outer surface of the movable tube (104) near the top; a square frame (203) is fixedly mounted on the top of the two L-shaped plates (207); a rotating rod (204) is movably embedded in the center of the bottom of the square frame (203); a spiral sheet (208) is fixedly wound around the outer surface of the rotating rod (204); the outer surface of the spiral sheet (208) is movably embedded in the interior of the movable tube (104); a motor (206) is fixedly mounted on the top of the inner wall of the square frame (203); and the output end of the motor (206) is fixedly mounted on one end of the rotating rod (204).

2. A bored pile hole forming device according to claim 1, characterized in that: The outer surface of the hollow tube (1) is provided with a plurality of support rods (101) in a circular array, and a vertical rod (2) is fixedly mounted on the top of the plurality of support rods (101) near the hollow tube (1), and the tops of the plurality of vertical rods (2) are fixedly mounted on the bottom of the cross-shaped plate (201) away from the center.

3. A bored pile hole forming device according to claim 2, characterized in that: A hydraulic telescopic rod (202) is fixedly embedded at the center of the top of the cross-shaped plate (201), and one end of the hydraulic telescopic rod (202) is fixedly mounted at the center of the top of the square frame (203).

4. A bored pile hole forming device according to claim 2, characterized in that: The inner wall of the hollow tube (1) is fixedly mounted with a plurality of slide bars (106) in a circular array, the outer surface of the movable tube (104) is provided with a plurality of slide grooves (105) in a circular array, and the outer surfaces of the plurality of slide bars (106) are movably embedded in the interior of the plurality of slide grooves (105).

5. A bored pile hole forming device according to claim 3, characterized in that: A plurality of scrapers (205) are fixedly mounted on the outer surface of the rotating rod (204) close to the square frame (203) in a circular array, and the number of the plurality of scrapers (205) is three.

6. A bored pile hole forming device according to claim 2, characterized in that: A support plate (102) is fixedly mounted on the bottom of each of the plurality of support rods (101), and two insertion rods (103) are symmetrically and movably embedded on the top of each of the plurality of support plates (102).

7. A bored pile hole forming device according to claim 4, characterized in that: The bottom of the movable tube (104) is rotatably connected to a circular ring (301), and the bottom of the circular ring (301) is fixedly mounted with a plurality of crushing blades (302) in a circular array.

8. A bored pile hole forming device according to claim 7, characterized in that: A plurality of round rods (3) are fixedly mounted on the inner wall of the circular ring (301) in a circular array, and one end of the plurality of round rods (3) is fixedly mounted in a circular array on the outer surface of the rotating rod (204) away from the square frame (203).

Images