Hole-forming construction equipment for rotary excavating pile

Abstract

The utility model discloses rotary excavating pile hole-forming construction equipment, and relates to the technical field of rotary excavating piles, the rotary excavating pile hole-forming construction equipment comprises a supporting frame, the lower end of the supporting frame is fixedly connected with a plurality of stand columns and inner rings which are distributed in an annular array mode, the lower ends of the outer sides of the inner rings are fixedly connected with limiting blocks, and the bottom ends of the stand columns are fixedly connected with limiting boxes; a limiting pin is placed on the inner side of the limiting box, and an expansion box is movably connected between the multiple stand columns and the inner ring. After the limiting pin is pulled out, the expansion box can stretch out downwards through the gravity of the limiting pin, then after the expansion box is rotated, staggered bearing can be conducted through steps at the upper ends of the first limiting sliding groove and the second limiting sliding groove, and the limiting pin is matched with the first limiting hole after penetrating through the limiting box; and the extension of the device can be realized through the extension boxes, so that the single storage capacity of the device can be increased, meanwhile, the extension function can be achieved, and the use effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drilling piles, and more specifically to a rotary drilling pile hole forming construction device. Background Art

[0002] As the pace of urbanization continues to accelerate, the number of housing construction projects is also increasing, and higher requirements are placed on engineering construction. While ensuring the quality of engineering construction, the use of diversified technical means to further improve the efficiency and safety of engineering construction requires the scientific use of new construction technologies. The application of drilling and grouting construction technology in housing construction projects can eliminate external influences, essentially ensure the construction quality of housing construction projects, and is widely used. Rotary piles are required for drilling and grouting.

[0003] In the Chinese utility model patent application number: CN201922211687.4, a rotary drilling machine drill bit is disclosed, including a drill casing and a plurality of drill blades, wherein the drill blades are rectangular blades, equidistantly distributed on the circumference of the construction end of the drill casing, a part of the drill blades are inclined 15° to the inner side of the pipe wall, and another part of the drill blades are inclined 15° to the outer side of the pipe wall, and the drill blades with different inclination angles are distributed at intervals on the circumference. The rotary drilling machine drill bit also has the disadvantages of fixed amount of soil excavated at a time during use, and does not have the function of expanding capacity, and has the disadvantages of relatively low efficiency during use, inconvenience in discharging materials, and poor use effect.

[0004] Therefore, it is necessary to propose a rotary pile hole construction equipment to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to solve the problems that the amount of soil excavated at a single time by the rotary drilling rig drill bit is fixed during use, the drill bit has no function of expanding capacity, and has the disadvantages of relatively low efficiency during use, inconvenience in discharging materials, and poor use effect. The utility model provides a rotary drilling pile hole construction equipment.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0009] A rotary drilling pile hole construction equipment comprises a support frame, wherein the lower end of the support frame is fixedly connected to a plurality of columns and an inner ring distributed in a ring array, the lower end of the outer side of the inner ring is fixedly connected to a limiting block, the bottom end of the column is fixedly connected to a limiting box, a limiting pin is placed on the inner side of the limiting box, an extension box is movably connected between the plurality of columns and the inner ring, a plurality of first limiting grooves matched with the limiting blocks are provided on the inner side of the extension box, a plurality of second limiting grooves matched with the columns are provided on the outer surface of the extension box, and a first limiting hole and a second limiting hole matched with the limiting pin are provided on one side of the extension box.

[0010] Furthermore, a rotating column is fixedly connected to the upper surface of the support frame, and the other end of the rotating column is connected to the driving device.

[0011] Furthermore, there are multiple limit blocks, which are distributed in a ring array, and steps are provided at the upper ends of the first limit sliding groove and the second limit sliding groove.

[0012] Furthermore, the outer surfaces of the plurality of columns and the expansion box are provided with advancing threads.

[0013] Furthermore, the bottom end of the expansion box is rotatably connected to a plurality of bottom plates distributed in a ring array, the plurality of bottom plates are spliced ​​to form a complete circle, and the inner upper surfaces of the plurality of bottom plates are fixedly connected to locking blocks.

[0014] Furthermore, a plurality of support rods distributed in a circular array are fixedly connected to the inner side of the bottom end of the expansion box, a telescopic rod is fixedly connected to one end of the plurality of support rods close to each other, a locking ring is fixedly connected to the bottom end of the telescopic rod, and an arc-shaped concave hole is provided at the bottom end of the locking ring.

[0015] Furthermore, a plurality of support rods distributed in a circular array are fixedly connected to the inner side of the bottom end of the expansion box, a motor is fixedly connected to one end of the plurality of support rods close to each other, a locking ring is fixedly connected to the bottom end of the motor, a circular arc-shaped recessed hole is provided at the bottom end of the locking ring, and a threaded groove is provided on the inner side of the circular arc-shaped recessed hole.

[0016] Furthermore, after the multiple locking blocks are spliced ​​together, the top ends are arc-shaped, and the outer sides of the multiple locking blocks are provided with partial threads, which are adapted to the arc-shaped concave hole threads at the bottom end of the locking ring after the multiple locking blocks are spliced ​​together.

[0017] Furthermore, the bottom ends of the plurality of rotary digging ports are fixedly connected with a plurality of bucket teeth distributed at equal intervals, and the bucket teeth are made of high manganese steel.

[0018] Furthermore, a plurality of upper openings of the rotary drilling openings are movably connected with movable cover plates.

[0019] (III) Beneficial effects

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. The utility model can extend the expansion box downward by utilizing its own gravity after the limit pin is pulled out, and then the first limit slide groove and the step at the upper end of the second limit slide groove can be utilized to carry out staggered load bearing after the extension box is rotated, and the limit pin penetrates the limit box and is matched with the first limit hole, so that the extended extension box can be limited, and the device can be expanded through the extension box, which can not only increase the single storage capacity of the device, but also play the function of extension, and the effect is better when used.

[0022] 2. In the utility model, the motor can be supported by the support rod, and the locking ring can be driven to rotate by the motor. After multiple locking blocks are spliced, a complete thread can be formed on the outer side. After the locking ring is rotated, it can be threadedly engaged with the multiple spliced ​​locking blocks to achieve limiting, so that the bottom plate can be closed, and it has a very good load-bearing capacity after closing. Multiple bottom plates distributed in a ring array can be opened simultaneously during discharge. Since there are multiple bottom plates and they are distributed at equal intervals, the device will not shake violently when the bottom plate is opened, and it is safer to use.

[0023] 3. The utility model is adapted to the digging opening and the bucket teeth so that soil can enter the device during rotation. The movable cover plate can automatically close due to its own gravity when the device moves upward, playing a one-way conduction function, thereby preventing soil inside the device from leaking through the digging opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a first stereoscopic schematic diagram of the structure of the utility model;

[0025] Figure 2 It is a second stereoscopic schematic diagram of the structure of the utility model;

[0026] Figure 3 It is a first cross-sectional schematic diagram of the structure of the utility model;

[0027] Figure 4 It is a second cross-sectional schematic diagram of the structure of the utility model;

[0028] Figure 5 It is a three-dimensional schematic diagram of the expansion box structure of the utility model;

[0029] Figure 6 For this utility model Figure 3 A magnified schematic diagram of the structure of the middle A area;

[0030] Figure 7 For this utility model Figure 3 A magnified schematic diagram of the structure of the middle B region;

[0031] Figure 8 For this utility model Figure 3 A magnified schematic diagram of the structure of the middle C region.

[0032] Figure numerals: 1. support frame; 2. rotating column; 3. column; 4. inner ring; 5. limit block; 6. limit box; 7. extension box; 8. first limit slide; 9. second limit slide; 10. first limit hole; 11. second limit hole; 12. limit pin; 13. advancing thread; 14. bottom plate; 15. support rod; 16. motor; 17. locking ring; 18. locking block; 19. rotary digging mouth; 20. bucket teeth; 21. movable cover plate. DETAILED DESCRIPTION

[0033] 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. Example 1

[0034] See also Figure 1 , 3 , 5 and 6, a rotary pile drilling construction equipment, including a support frame 1, a plurality of columns 3 and an inner ring 4 distributed in a ring array are fixedly connected at the lower end of the support frame 1, a limit block 5 is fixedly connected to the lower end of the outer side of the inner ring 4, the number of the limit blocks 5 is multiple, and the multiple limit blocks 5 are distributed in a ring array, the bottom end of the column 3 is fixedly connected to a limit box 6, a limit pin 12 is placed on the inner side of the limit box 6, an extension box 7 is movably connected between the plurality of columns 3 and the inner ring 4, and a plurality of limit pins 12 are placed on the inner side of the extension box 7. A first limiting slide groove 8 is adapted to the limiting block 5, and a plurality of second limiting slide grooves 9 adapted to the column 3 are provided on the outer surface of the extension box 7. A first limiting hole 10 and a second limiting hole 11 adapted to the limiting pin 12 are provided on one side of the extension box 7. A rotating column 2 is fixedly connected to the upper surface of the support frame 1, and the other end of the rotating column 2 is connected to the driving device. Steps are provided at the upper ends of the first limiting slide groove 8 and the second limiting slide groove 9, and advancing threads 13 are provided on the outer surfaces of the plurality of columns 3 and the extension box 7.

[0035] In this embodiment, by pulling out the limit pin 12, the expansion box 7 can be extended downward by its own gravity, and then by rotating the expansion box 7, the steps at the upper ends of the first limit slide groove 8 and the second limit slide groove 9 can be used for staggered load-bearing. The limit pin 12 penetrates the limit box 6 and is matched with the first limit hole 10, so that the extended expansion box 7 can be limited. The device can be expanded through the expansion box 7, which can not only increase the single storage capacity of the device, but also play the role of extension, and the effect is better when used. Example 2

[0036] See also Figure 4 and 7 This embodiment is further optimized on the basis of Embodiment 1. Specifically, the bottom end of the expansion box 7 is rotatably connected to a plurality of bottom plates 14 distributed in a ring array. The plurality of bottom plates 14 are spliced ​​to form a complete circle. The inner upper surfaces of the plurality of bottom plates 14 are fixedly connected to locking blocks 18.

[0037] Specifically, a plurality of support rods 15 distributed in a circular array are fixedly connected to the inner side of the bottom end of the expansion box 7, a motor 16 is fixedly connected to one end of the plurality of support rods 15 close to each other, a locking ring 17 is fixedly connected to the bottom end of the motor 16, a circular arc-shaped recessed hole is provided at the bottom end of the locking ring 17, and a threaded groove is provided on the inner side of the circular arc-shaped recessed hole.

[0038] Specifically, after the multiple locking blocks 18 are spliced ​​together, the top ends are arc-shaped, and the outer sides of the multiple locking blocks 18 are provided with partial threads. After the multiple locking blocks 18 are spliced ​​together, they are compatible with the arc-shaped concave hole threads at the bottom end of the locking ring 17.

[0039] In this embodiment, the motor 16 can be supported by the support rod 15, and the motor 16 can drive the locking ring 17 to rotate. After the multiple locking blocks 18 are spliced, the outer sides can form a complete thread. After the locking ring 17 is rotated, it can be threadedly engaged with the multiple spliced ​​locking blocks 18 to achieve limiting, so that the bottom plate 14 can be closed. The multiple bottom plates 14 distributed in a ring array can be opened simultaneously during discharge. Since the number of bottom plates 14 is multiple and distributed at equal intervals, the device will not shake violently when the bottom plate 14 is opened, and it is safer to use. Example 3

[0040] See also Figure 2 and 8 This embodiment is optimized as follows based on Example 1 or Example 2. Specifically, a plurality of bottom plates 14 are provided with rotary digging openings 19 on their inner sides. The plurality of rotary digging openings 19 are distributed in a circular array and are opened in a spiral shape.

[0041] Specifically, the bottom ends of the plurality of rotary digging openings 19 are fixedly connected with a plurality of bucket teeth 20 distributed at equal intervals, and the bucket teeth 20 are made of high manganese steel.

[0042] Specifically, the upper openings of the plurality of rotary drilling openings 19 are all movably connected with movable cover plates 21 .

[0043] In this embodiment, the rotary digging opening 19 is adapted to the bucket teeth 20 so that soil can enter the device during rotation. The movable cover plate 21 can automatically close due to its own gravity when the device moves upward, thereby playing a one-way conduction function, thereby preventing soil inside the device from leaking through the rotary digging opening 19.

[0044] In summary, the utility model needs to drive the rotating column 2 to rotate and lift through the driving part when in use, and the expansion box 7 can be extended downward by its own gravity after the limit pin 12 is pulled out, and then the first limit slide groove 8 and the step at the upper end of the second limit slide groove 9 can be used for staggered load bearing after the expansion box 7 is rotated, and the limit pin 12 penetrates the limit box 6 and matches with the first limit hole 10, so that the extended expansion box 7 can be limited, and the expansion box 7 can be expanded by the expansion box 7, which can not only enhance the storage capacity of the device at a time, but also play the function of extension, and the effect is better when in use. When the expansion box 7 is not needed, the device can be placed on the ground, and after the expansion box 7 is retracted, the limit pin 12 penetrating the limit box 6 matches with the first limit hole 10, so that the volume of the device can be reduced, and it is more convenient to move, and the motor 16 can be controlled by the support rod 15. The locking ring 17 is supported by the motor 16, and the locking ring 17 can be driven to rotate by the motor 16. After the multiple locking blocks 18 are spliced, a complete thread can be formed on the outer side. After the locking ring 17 is rotated, the arc-shaped concave hole can be threadedly engaged with the multiple spliced ​​locking blocks 18 to achieve limiting, thereby realizing the closure of the bottom plate 14. The bottom plates 14 distributed in a ring array can be opened simultaneously during discharge. Since the number of bottom plates 14 is multiple and they are distributed at equal intervals, the forces in multiple directions offset each other when the bottom plates 14 are opened, and the device will not shake violently, which makes it safer to use. The rotary excavation port 19 is matched with the bucket teeth 20, so that soil can enter the device during rotation. The movable cover plate 21 can automatically close when the device moves upward due to its own gravity, and plays a one-way conduction function, thereby preventing the soil inside the device from leaking through the rotary excavation port 19, and the effect is better when used.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotary pile drilling construction device, comprising a support frame (1), characterized in that: The lower end of the support frame (1) is fixedly connected to a plurality of columns (3) and an inner ring (4) distributed in a ring array, the lower end of the outer side of the inner ring (4) is fixedly connected to a limit block (5), the bottom end of the column (3) is fixedly connected to a limit box (6), a limit pin (12) is placed on the inner side of the limit box (6), an extension box (7) is movably connected between the plurality of columns (3) and the inner ring (4), a plurality of first limit slots (8) matching the limit blocks (5) are provided on the inner side of the extension box (7), a plurality of second limit slots (9) matching the columns (3) are provided on the outer surface of the extension box (7), and a first limit hole (10) and a second limit hole (11) matching the limit pin (12) are provided on one side of the extension box (7).

2. The rotary pile drilling construction equipment according to claim 1, characterized in that: A rotating column (2) is fixedly connected to the upper surface of the support frame (1), and the other end of the rotating column (2) is connected to a driving device.

3. The rotary pile drilling construction equipment according to claim 1, characterized in that: There are a plurality of the limit blocks (5), which are distributed in a ring array, and steps are provided at the upper ends of the first limit slide groove (8) and the second limit slide groove (9).

4. The rotary pile drilling construction equipment according to claim 1, characterized in that: The outer surfaces of the plurality of upright posts (3) and the expansion box (7) are all provided with advancing threads (13).

5. The rotary pile drilling construction equipment according to claim 1, characterized in that: The bottom end of the expansion box (7) is rotatably connected to a plurality of bottom plates (14) distributed in a ring array, the plurality of bottom plates (14) being spliced ​​together to form a complete circle, and the inner upper surfaces of the plurality of bottom plates (14) are all fixedly connected to locking blocks (18).

6. The rotary pile drilling construction equipment according to claim 1, characterized in that: A plurality of support rods (15) distributed in a ring array are fixedly connected to the inner side of the bottom end of the expansion box (7); a motor (16) is fixedly connected to one end of the plurality of support rods (15) close to each other; a locking ring (17) is fixedly connected to the bottom end of the motor (16); a circular arc-shaped concave hole is provided at the bottom end of the locking ring (17); a threaded groove is provided inside the circular arc-shaped concave hole.

7. The rotary pile drilling construction equipment according to claim 5, characterized in that: After the multiple locking blocks (18) are spliced ​​together, the top ends are arc-shaped, and the outer sides of the multiple locking blocks (18) are each provided with partial threads. After the multiple locking blocks (18) are spliced ​​together, they are adapted to the arc-shaped concave hole threads at the bottom end of the lock ring (17).

8. The rotary pile drilling construction equipment according to claim 5, characterized in that: A plurality of rotary digging openings (19) are provided on the inner sides of the bottom plates (14), the plurality of rotary digging openings (19) are distributed in a ring array, and the rotary digging openings (19) are opened in a spiral shape.

9. The rotary pile drilling construction equipment according to claim 8, characterized in that: The bottom ends of the plurality of rotary digging openings (19) are all fixedly connected to a plurality of bucket teeth (20) distributed at equal intervals, and the bucket teeth (20) are made of high manganese steel.

10. The rotary pile drilling construction equipment according to claim 8, characterized in that: The upper openings of the plurality of rotary drilling openings (19) are all movably connected to a movable cover plate (21).

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