Square prefabricated part hole forming device

Abstract

The utility model relates to the technical field of square drilling, in particular to a square prefabricated part hole forming device, the lower end of a main shaft extends to the outer side of the lower end of a forming cylinder and is provided with a drill bit, the outer wall of the main shaft is provided with four groups of scraping fan blade plates which are distributed in a circumferential array, and the upper ends of the scraping fan blade plates are provided with a plurality of groups of scraping plates; the drilling device has the beneficial effects that the scraping fan blade plate and the scraping plate are arranged between the drill bit and the drilling spiral piece and are matched with each other, so that in the drilling lifting process, soil at the corner position collapses, the scraping fan blade plate and the scraping plate are located at the lower end of the drilling spiral piece, and the drilling spiral piece is located on the outer side of the lower end of the forming cylinder. According to the continuous drilling forming device, soil ascends through rotation flow guide of the scraping fan blade plate, the soil is loosened through the scraping plate, then the ascending soil is brought out in cooperation with spiral rotation of the drilling spiral piece, manual cleaning is avoided, and continuous drilling forming construction is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of square drilling, in particular to a square prefabricated component hole forming device. Background Art

[0002] In the process of construction, in most cases it is necessary to drill a square hole. In the prior art, when drilling and excavating a square hole, a square outer cylinder and a spiral rod are usually used. The spiral rod is rotated to drill a circular hole, and the spiral rotation brings out the soil. At the same time, the lifting and squeezing of the square outer cylinder is used to cause the soil at the four corners between the circular hole and the inner wall of the square cylinder to collapse, thereby realizing the forming excavation of the square hole.

[0003] However, in the actual drilling process, the descent of the square tube causes the soil in the unexcavated corners to collapse. When this part of the soil is not in contact with the spiral rod at the lower end of the square tube, and is squeezed and compacted as it descends, it becomes difficult to drive the square tube up and down. In severe cases, it even causes the spiral blades on the spiral rod to deform. Therefore, it is necessary to lift it up after excavating a certain length, and manually clean the accumulated soil, which reduces the efficiency of forming. Utility Model Content

[0004] The utility model aims to provide a square prefabricated component hole-forming device to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A square prefabricated component hole-forming device comprises a hole-forming device, wherein the hole-forming device comprises a forming cylinder, the forming cylinder is a square cylinder, and a main shaft connected to a drilling drive assembly is arranged in the inner cavity of the forming cylinder, a drilling spiral piece is arranged on the outer wall of the main shaft, the lower end of the main shaft extends to the outer side of the lower end of the forming cylinder and is provided with a drill bit, four groups of scraper blades distributed in a circular array are arranged on the outer wall of the main shaft, a plurality of groups of scrapers are arranged on the upper end of the scraper blades, the scraper blades and the scrapers are located at the lower end of the drilling spiral piece and at the outer side of the lower end of the forming cylinder.

[0007] Preferably, an end plate connected by a mounting hole is provided at the upper end of the forming cylinder, and a discharge hole is provided on the end plate. The outer diameter of the discharge hole is larger than the outer diameter of the main shaft and smaller than the outer diameter of the drilling spiral piece, and a plurality of reinforcing side plates are provided between the lower end of the end plate and the outer wall of the forming cylinder.

[0008] Preferably, a coupling is connected to the upper end of the main shaft, and the coupling is connected to a drilling drive assembly, and the drilling drive assembly realizes the rotation drive of the main shaft and the lifting drive of the forming cylinder.

[0009] Preferably, the lower end port of the forming cylinder is provided with multiple groups of pointed tips.

[0010] Preferably, a flow guide frame is provided on the inner side of the lower end port of the forming cylinder, and the flow guide frame is composed of a ring-shaped inclined polymer plate and a supporting partition.

[0011] Preferably, the supporting partition is parallel to the end plate, is in a circular shape, and is fixed on the inner wall of the forming cylinder. The inclined polymer plate is installed at an angle and is inclined toward one side of the main axis. The end of the inclined polymer plate is fixed at the lower end of the supporting partition.

[0012] Preferably, a middle opening is provided between the inclined aggregate plate and the supporting partition wall guide frame, and the middle opening can accommodate the rotation of the drilling spiral blade.

[0013] Preferably, one end of the multiple groups of scraper blades is flush with the lower end of the main shaft, and the other end of the scraper blades extends upward, and the upper end of the scraper blades is provided with spaced scrapers, and the upper end of the scraper blades is flush with the lower end of the drilling spiral blade, and the middle section of the scraper blades extends spirally along the outer wall of the main shaft.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model provides a scraper blade and a scraper between the drill bit and the drilling spiral piece, so that during the drilling lifting process, the soil at the corner position collapses and is located at the lower end of the drilling spiral piece. The scraper blade is rotated to guide the soil, so that the soil rises, and the scraper is used to loosen the soil, and then the rising soil is brought out in cooperation with the spiral rotation of the drilling spiral piece, thereby avoiding manual cleaning and realizing continuous drilling and forming construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 for Figure 1 Sectional view of section AA;

[0018] Figure 3 It is a top view of the utility model.

[0019] In the figure: 1. forming cylinder; 2. end plate; 3. main shaft; 4. drilling spiral blade; 5. coupling; 6. discharge hole; 7. guide frame; 8. pointed head; 9. scraper fan plate; 10. drill bit; 11. scraper; 12. inclined polymer plate; 13. supporting partition; 14. middle opening; 15. strengthening side plate; 16. mounting hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 3 , the utility model provides a technical solution:

[0022] Embodiment 1: A square prefabricated component hole-forming device, comprising a hole-forming device, comprising a forming tube 1, the forming tube 1 is a square tube, and a main shaft 3 connected to a drilling drive assembly is arranged in the inner cavity of the forming tube 1, a drilling spiral piece 4 is arranged on the outer wall of the main shaft 3, the lower end of the main shaft 3 extends to the outer side of the lower end of the forming tube 1 and is provided with a drill bit 10, the upper end of the forming tube 1 is provided with an end plate 2 connected by a mounting hole 16, and a discharge hole 6 is arranged on the end plate 2, the outer diameter of the discharge hole 6 is larger than the outer diameter of the main shaft 3 and smaller than the outer diameter of the drilling spiral piece 4, a plurality of groups of reinforcing side plates 15 are arranged between the lower end of the end plate 2 and the outer wall of the forming tube 1, the upper end of the main shaft 3 is connected with a coupling 5, the coupling 5 is connected to the drilling drive assembly, and the drilling drive assembly realizes the rotation drive of the main shaft 3 and the lifting drive of the forming tube 1.

[0023] The main shaft 3 is driven to rotate by the drilling drive assembly, thereby rotating the drilling spiral piece 4 and the drill bit 10 to achieve the purpose of drilling a circular hole. During the drilling process, the spiral rotation of the drilling spiral piece 4 is used to drive the soil to rise and extend to the discharge hole 6 for discharge.

[0024] Four groups of scraper blades 9 distributed in a circular array are arranged on the outer wall of the main shaft 3, and multiple groups of scrapers 11 are arranged on the upper end of the scraper blades 9. The scraper blades 9 and the scrapers 11 are located at the lower end of the drilling spiral blades 4 and at the outer side of the lower end of the forming cylinder 1.

[0025] In the actual processing process, when the soil between the inner walls of the four corners of the forming tube 1 and the circular hole collapses, the soil falls on the scraper blade 9, and then with the rotation of the main shaft 3, the soil is transported upward. As it rises, it cooperates with the spiral rotation of the drilling spiral 4 to achieve the purpose of timely cleaning the accumulated soil. The scraper 11 is used to loosen the soil, and then the spiral rotation of the drilling spiral 4 is cooperated to bring out the rising soil, avoiding manual cleaning and realizing continuous drilling and forming construction.

[0026] Embodiment 2: On the basis of Embodiment 1, in order to achieve the limitation and diversion of soil transportation, a plurality of groups of pointed heads 8 are arranged at the lower end port of the forming cylinder 1, and a guide frame 7 is arranged on the inner side of the lower end port of the forming cylinder 1. The guide frame 7 is composed of an annular inclined aggregate plate 12 and a supporting partition 13. The supporting partition 13 is parallel to the end plate 2, the supporting partition 13 is circular, and the supporting partition 13 is fixed on the inner wall of the forming cylinder 1, the inclined aggregate plate 12 is installed at an angle, and the inclined aggregate plate 12 is inclined toward the side of the main shaft 3, and the end of the inclined aggregate plate 12 is fixed to the lower end of the supporting partition 13.

[0027] By providing the pointed head 8, the forming tube 1 can be conveniently lowered and extruded, and by providing the inclined polymer plate 12, the soil at the lower end is gathered to the side of the main shaft 3 to achieve soil diversion, and by providing the supporting partition 13, the lower end is blocked to prevent the soil from being thrown out under the action of centrifugal force during the spiral rotation of the drilling spiral blade 4 to drive the soil to rise, causing the drill bit 10 to be filled again.

[0028] A middle opening 14 is provided in the middle of the guide frame 7 surrounded by the inclined polymer plate 12 and the supporting partition plate 13. The middle opening 14 can accommodate the rotation of the drilling spiral blade 4. One end of the multiple groups of scraper blades 9 is flush with the lower end of the main shaft 3, and the other end of the scraper blade 9 extends upward. The upper end of the end of the scraper blade 9 is provided with a spaced scraper 11. The upper end of the scraper 11 is flush with the lower end of the drilling spiral blade 4, and the middle section of the scraper blade 9 extends spirally along the outer wall of the main shaft 3.

[0029] By providing the middle opening 14, the soil collapsed at the lower end can be driven upward by the spiral for discharge, and by providing the scraper 11, the soil can be scraped to avoid squeezing the equipment by the soil.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A square prefabricated component hole-forming device, comprising a hole-forming device, the hole-forming device comprising a forming cylinder (1), the forming cylinder (1) being a square cylinder, and a main shaft (3) connected to a drilling drive assembly is arranged in the inner cavity of the forming cylinder (1), and a drilling spiral sheet (4) is arranged on the outer wall of the main shaft (3), characterized in that: The lower end of the main shaft (3) extends to the outer side of the lower end of the forming tube (1) and is provided with a drill bit (10); four groups of scraper blades (9) distributed in a circumferential array are provided on the outer wall of the main shaft (3); a plurality of groups of scrapers (11) are provided at the upper end of the scraper blades (9); the scraper blades (9) and the scrapers (11) are located at the lower end of the drilling spiral blade (4) and at the outer side of the lower end of the forming tube (1).

2. A square prefabricated component hole-making device according to claim 1, characterized in that: The upper end of the forming cylinder (1) is provided with an end plate (2) connected via a mounting hole (16), and the end plate (2) is provided with a discharge hole (6), the outer diameter of the discharge hole (6) is larger than the outer diameter of the main shaft (3) and smaller than the outer diameter of the drilling spiral sheet (4), and a plurality of groups of reinforcing side plates (15) are provided between the lower end of the end plate (2) and the outer wall of the forming cylinder (1).

3. A square prefabricated component hole-making device according to claim 2, characterized in that: The upper end of the main shaft (3) is connected to a coupling (5), and the coupling (5) is connected to a drilling drive assembly, and the drilling drive assembly realizes the rotation drive of the main shaft (3) and the lifting drive of the forming cylinder (1).

4. A square prefabricated component hole-forming device according to claim 1, characterized in that: The lower end port of the forming cylinder (1) is provided with a plurality of groups of pointed tips (8).

5. A square prefabricated component hole-forming device according to claim 4, characterized in that: A flow guide frame (7) is arranged inside the lower end port of the forming cylinder (1), and the flow guide frame (7) is composed of a ring-shaped inclined polymer plate (12) and a supporting partition plate (13).

6. A square prefabricated component hole-making device according to claim 5, characterized in that: The supporting baffle (13) is parallel to the end plate (2), is annular in shape, and is fixed to the inner wall of the forming tube (1). The inclined polymer plate (12) is installed at an angle, and is inclined toward one side of the main shaft (3). The end of the inclined polymer plate (12) is fixed to the lower end of the supporting baffle (13).

7. A square prefabricated component hole-making device according to claim 6, characterized in that: A middle opening (14) is provided in the middle of the guide frame (7) surrounded by the inclined aggregate plate (12) and the supporting partition plate (13), and the middle opening (14) can accommodate the rotation of the drilling spiral sheet (4).

8. A square prefabricated component hole-forming device according to claim 7, characterized in that: One end of the plurality of groups of scraper blades (9) is flush with the lower end of the main shaft (3), and the other end of the scraper blades (9) extends upward, and the upper end of the end of the scraper blades (9) is provided with spaced scrapers (11), the upper end of the scraper blades (11) is flush with the lower end of the drilling spiral blade (4), and the middle section of the scraper blades (9) extends spirally along the outer wall of the main shaft (3).

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