A pile guide for cohesive ground

Abstract

The utility model relates to a kind of for viscous soil's pile driving hole guiding device, including hole guiding component, still including annular base, the hole guiding component is installed on annular base, coaxially rotatably connected with gear ring on the annular base, coaxially set with connecting ring on the gear ring, multiple first connecting arms are fixedly connected between the connecting ring and gear ring, and one of the first connecting arms is horizontally slidably connected with scraper plate.The utility model drives gear ring to rotate coaxially on annular base by the setting of second motor and driving gear, gear ring can drive the scraper plate below it to rotate synchronously when rotating, since the end of scraper plate is below connecting ring and exceeds the center position of connecting ring, so scraper plate can flatten viscous soil below connecting ring by pushing and extruding mode when rotating, and after flattening, scraper plate can be stored by the way of horizontally moving scraper plate, so as to facilitate subsequent pile driving hole guiding work of hole guiding component.

Description

Technical Field

[0001] This utility model relates to the field of pile driving and borehole technology, specifically a pile driving and borehole device for cohesive soil. Background Technology

[0002] Ground-mounted photovoltaic power stations utilize resources and achieve energy conservation by installing multiple photovoltaic panels, which absorb sunlight and convert it into electricity. During the installation process, support columns need to be installed on the ground, which requires drilling holes in the ground for the photovoltaic panels.

[0003] Application number CN202322003982.7 discloses a ground-mounted photovoltaic power station piling and drilling device, including a device body, a return spring, and a second drive motor. Pneumatic telescopic rods are installed on both sides of the bottom of the device body, and a base plate is connected below the pneumatic telescopic rods. Threaded holes are provided at both ends of the top of the base plate, and a lead screw is installed on the inner wall of the device body. This device utilizes a support ring fitted onto a connecting rod, supported on the ground by multiple support rods, to achieve the function of supporting and limiting the spiral rod. Fixing spikes further stabilize the support. When the connecting rod rotates, multiple arc surfaces scrape against the universal ball joint, causing the universal ball joint to compress and deform the return spring, thus not affecting the normal rotation of the connecting rod. Through the return spring's reset, the universal ball joint is locked in the groove of the connecting rod. Multiple universal balls exert uniform force on the connecting rod, making it less prone to displacement of the spiral rod during piling, thus solving the problem of piling position displacement.

[0004] The above solution lacks a leveling function. When drilling for piles in some highly cohesive soils, the soil above the hole will be squeezed towards the hole as the drill bit descends, causing the hole to collapse. Utility Model Content

[0005] The purpose of this invention is to provide a piling and drilling device for cohesive soil, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A piling and drilling device for cohesive soil includes a drilling assembly and an annular base. The drilling assembly is mounted on the annular base. A toothed ring is coaxially rotatably connected to the annular base. A connecting ring is coaxially disposed on the toothed ring. A plurality of first connecting arms are fixedly connected between the connecting ring and the toothed ring. A scraper is horizontally slidably connected to one of the first connecting arms. The bottom of the scraper is flush with the bottom surface of the annular base, and one end of the scraper extends below the connecting ring. A fixing assembly connects the scraper and the connecting ring.

[0008] Preferably, the fixing component includes a fixing pin, a first pin hole, and a second pin hole. The first pin hole is formed on the connecting ring, and the second pin hole is formed on the top surface of the scraper. The lower end of the fixing pin passes through the first pin hole and extends into the interior of the second pin hole.

[0009] Preferably, a groove is provided on the first connecting arm, a slider is fixedly installed on the top of the scraper, a guide rod is horizontally fixedly connected above the groove, the groove extends along the axial direction of the guide rod, and the slider passes through the groove and is slidably connected to the guide rod.

[0010] Preferably, a limiting groove is formed on the gear ring, the limiting groove is circular and coaxial with the gear ring, a second connecting arm is fixedly installed on the lead hole assembly, the gear ring is located between the two second connecting arms, a limiting block is fixedly connected to the second connecting arm, and the limiting block is slidably connected in the limiting groove.

[0011] Preferably, the borehole assembly includes a bracket, a hydraulic cylinder, a housing, a first motor, and a drill rod. The bracket is fixedly mounted on an annular base, the hydraulic cylinder is fixedly connected to the top of the bracket, the housing is located below the bracket and connected to the output end of the hydraulic cylinder, the drill rod is rotatably connected to the housing, the first motor is fixedly mounted inside the housing and connected to the top end of the drill rod, the drill rod is coaxially arranged with the connecting ring, and the second connecting arm is fixedly connected to the bracket.

[0012] Preferably, two guide plates are symmetrically fixedly connected below the first connecting arm with the groove, and the sides of the two guide plates are respectively in contact with the two opposite side walls of the scraper.

[0013] Preferably, a drive gear is rotatably connected to the annular base, the drive gear meshes with a gear ring, and a second motor is fixedly installed on the annular base, the output end of the second motor being coaxially connected to the drive gear.

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

[0015] This utility model uses a second motor and a drive gear to drive a gear ring to rotate coaxially on an annular base. When the gear ring rotates, it can drive the scraper below it to rotate synchronously. Since one end of the scraper is located below the connecting ring and extends beyond the center of the connecting ring, the scraper can level the sticky soil below the connecting ring by pushing and squeezing when it rotates. After leveling, the scraper can be stored by moving it horizontally, which facilitates the subsequent piling and drilling work of the pre-hole assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the hole assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the connecting arm and the scraper of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the scraper and the guide plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the second connecting arm and the gear ring of this utility model.

[0021] In the diagram: 1. Annular base; 2. Pre-hole assembly; 21. Bracket; 22. Hydraulic cylinder; 23. Housing; 24. First motor; 25. Drill rod; 3. Gear ring; 4. Drive gear; 5. Second motor; 6. Connecting ring; 7. First connecting arm; 8. Scraper; 9. Slider; 10. Guide rod; 11. Fixing pin; 12. Slide groove; 13. First pin hole; 14. Second pin hole; 15. Guide plate; 16. Limiting groove; 17. Second connecting arm; 18. Limiting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution:

[0024] A piling and drilling device for cohesive soil includes a drilling assembly 2 and an annular base 1. The drilling assembly 2 is mounted on the annular base 1. A toothed ring 3 is coaxially rotatably connected to the annular base 1. A connecting ring 6 is coaxially arranged on the toothed ring 3. A plurality of first connecting arms 7 are fixedly connected between the connecting ring 6 and the toothed ring 3. A scraper 8 is horizontally slidably connected to one of the first connecting arms 7. The bottom of the scraper 8 is flush with the bottom surface of the annular base 1, and one end of the scraper 8 extends to the bottom of the connecting ring 6. A fixing component is connected between the scraper 8 and the connecting ring 6.

[0025] Please see Figure 1The annular base 1 is placed directly on the ground. Before the pile drilling is carried out through the pilot hole assembly 2, the gear ring 3 is driven to rotate, which causes the first connecting arm 7 to revolve. This causes the first connecting arm 7 to drive the scraper 8 to rotate synchronously, so that the scraper 8 can level the cohesive soil directly below the pilot hole assembly 2.

[0026] The fixing component includes a fixing pin 11, a first pin hole 13, and a second pin hole 14. The first pin hole 13 is formed on the connecting ring 6, and the second pin hole 14 is formed on the top surface of the scraper 8. The lower end of the fixing pin 11 passes through the first pin hole 13 and extends into the interior of the second pin hole 14. A sliding groove 12 is formed on the first connecting arm 7. A slider 9 is fixedly installed on the top of the scraper 8. A guide rod 10 is horizontally fixedly connected above the sliding groove 12. The extension direction of the sliding groove 12 is along the axial direction of the guide rod 10. The slider 9 passes through the sliding groove 12 and is slidably connected to the guide rod 10.

[0027] Please see Figure 3 and Figure 4 When the soil needs to be leveled, one end of the scraper 8 extends below the connecting ring 6, and the other end of the scraper 8 extends beyond the center of the connecting ring 6, so that the entire area below the connecting ring 6 can be leveled. After leveling, the worker pulls out the fixing pin 11, so that the fixing pin 11 is disengaged from the first pin hole 13 and the second pin hole 14. Then the scraper 8 is pushed horizontally, so that the scraper 8 drives the slider 9 to move axially away from 6 on the guide rod 10, so that the scraper 8 is removed from below the connecting ring 6. At this time, the fixing pin 11 is reinserted into the first pin hole 13 for storage, and the pile pilot hole can be directly driven into the leveled soil through the pilot hole assembly 2.

[0028] A limiting groove 16 is formed on the gear ring 3. The limiting groove 16 is circular and coaxial with the gear ring 3. A second connecting arm 17 is fixedly installed on the lead hole assembly 2. The gear ring 3 is located between the two second connecting arms 17. A limiting block 18 is fixedly connected to the second connecting arm 17. The limiting block 18 is slidably connected in the limiting groove 16. A drive gear 4 is rotatably connected to the annular base 1. The drive gear 4 meshes with the gear ring 3. A second motor 5 is fixedly installed on the annular base 1. The output end of the second motor 5 is coaxially connected to the drive gear 4.

[0029] Please see Figure 1 and Figure 5 In this embodiment, the second motor 5 is started, and the drive gear 4 is driven to rotate. When the drive gear 4 rotates, it can drive the gear ring 3 to rotate. Through the setting of the limiting block 18 and the limiting groove 16, the gear ring 3 can only rotate coaxially above the annular base 1, thereby realizing the driving of the scraper 8.

[0030] The borehole assembly 2 includes a bracket 21, a hydraulic cylinder 22, a housing 23, a first motor 24, and a drill rod 25. The bracket 21 is fixedly mounted on the annular base 1. The hydraulic cylinder 22 is fixedly connected to the top of the bracket 21. The housing 23 is located below the bracket 21 and is connected to the output end of the hydraulic cylinder 22. The drill rod 25 is rotatably connected to the housing 23. The first motor 24 is fixedly mounted inside the housing 23 and is connected to the top of the drill rod 25. The drill rod 25 is coaxially arranged with the connecting ring 6. The second connecting arm 17 is fixedly connected to the bracket 21.

[0031] Please see Figure 2 In this embodiment, the first motor 24 drives the drill rod 25 to rotate. The hydraulic cylinder 22 can drive the outer shell 23, the first motor 24 and the drill rod 25 to move downward as a whole, so that the drill rod 25 can move downward continuously during the rotation, so as to realize the piling and drilling of the ground.

[0032] Two guide plates 15 are symmetrically fixedly connected below the first connecting arm 7, which has a groove 12. The sides of the two guide plates 15 are in contact with the two opposite side walls of the scraper 8.

[0033] Please see Figure 4 The two guide plates 15 can guide the movement of the scraper 8, and when the scraper 8 revolves with the first connecting arm 7, the two guide plates 15 can protect the connection between the scraper 8 and the first connecting arm 7.

[0034] 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, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piling pre-drilling device for cohesive soil, comprising a pre-drilling assembly (2), characterized in that, It also includes an annular base (1), the hole assembly (2) is mounted on the annular base (1), a gear ring (3) is coaxially rotatably connected on the annular base (1), a connecting ring (6) is coaxially provided on the gear ring (3), a plurality of first connecting arms (7) are fixedly connected between the connecting ring (6) and the gear ring (3), a scraper (8) is horizontally slidably connected on one of the first connecting arms (7), the bottom of the scraper (8) is flush with the bottom surface of the annular base (1), and one end of the scraper (8) extends to the bottom of the connecting ring (6), and a fixing component is connected between the scraper (8) and the connecting ring (6).

2. The piling and drilling device for cohesive soil according to claim 1, characterized in that, The fixing component includes a fixing pin (11), a first pin hole (13) and a second pin hole (14). The first pin hole (13) is opened on the connecting ring (6), and the second pin hole (14) is opened on the top surface of the scraper (8). The lower end of the fixing pin (11) passes through the first pin hole (13) and extends into the interior of the second pin hole (14).

3. A piling and drilling device for cohesive soil according to claim 1, characterized in that, The first connecting arm (7) has a groove (12) and a slider (9) is fixedly installed on the top of the scraper (8). A guide rod (10) is horizontally fixedly connected above the groove (12). The extension direction of the groove (12) is along the axial direction of the guide rod (10). The slider (9) passes through the groove (12) and is slidably connected to the guide rod (10).

4. A piling and drilling device for cohesive soil according to claim 1, characterized in that, A limiting groove (16) is provided on the gear ring (3). The limiting groove (16) is circular and coaxial with the gear ring (3). A second connecting arm (17) is fixedly installed on the hole assembly (2). The gear ring (3) is located between the two second connecting arms (17). A limiting block (18) is fixedly connected to the second connecting arm (17). The limiting block (18) is slidably connected in the limiting groove (16).

5. A piling and drilling device for cohesive soil according to claim 4, characterized in that, The borehole assembly (2) includes a bracket (21), a hydraulic cylinder (22), a housing (23), a first motor (24), and a drill rod (25). The bracket (21) is fixedly mounted on the annular base (1). The hydraulic cylinder (22) is fixedly connected to the top of the bracket (21). The housing (23) is located below the bracket (21) and connected to the output end of the hydraulic cylinder (22). The drill rod (25) is rotatably connected to the housing (23). The first motor (24) is fixedly mounted inside the housing (23) and connected to the top of the drill rod (25). The drill rod (25) is coaxially arranged with the connecting ring (6). The second connecting arm (17) is fixedly connected to the bracket (21).

6. A piling and drilling device for cohesive soil according to claim 3, characterized in that, Two guide plates (15) are symmetrically fixedly connected below the first connecting arm (7) with the groove (12), and the sides of the two guide plates (15) respectively contact the two opposite side walls of the scraper (8).

7. A piling and drilling device for cohesive soil according to claim 1, characterized in that, A drive gear (4) is rotatably connected to the annular base (1), and the drive gear (4) meshes with the gear ring (3). A second motor (5) is fixedly installed on the annular base (1), and the output end of the second motor (5) is coaxially connected to the drive gear (4).

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