Cement mixing pile construction device

Abstract

The invention discloses a cement mixing pile construction device which comprises a movable base provided with a supporting frame, a power assembly and a supporting plate. The drill rod is of a hollow structure, the drill rod is rotationally connected with the supporting plate, and the top end of the drill rod is rotationally connected with a fixing cylinder in a sealed mode; the compaction mechanism comprises a positioning cylinder arranged in the drill rod, the top end of the positioning cylinder is connected with the top end of the fixing cylinder, a plurality of second sliding holes are formed in the positioning cylinder at intervals, the first sliding holes and the second sliding holes which correspond to each other are communicated through connecting pipes, and slidable driving blocks are arranged in the connecting pipes; a driving rod capable of moving up and down is arranged in the positioning cylinder, the upper portion of the driving rod penetrates through the fixing cylinder in a sealed rotating mode and extends out of the fixing cylinder, a plurality of adjusting blocks are arranged on the driving rod, and the lower end faces of the adjusting blocks are inclined faces to drive the driving block to slide. By arranging the compaction mechanism, compaction of the hole wall of the drilled hole is achieved, and the stability of the cement mixing pile is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mixing pile construction equipment, and more specifically, to a cement mixing pile construction device. Background Art

[0002] Cement mixing piles refer to an effective form of soft foundation treatment. It uses cement as the main agent of the curing agent, and uses a pile mixing machine to spray cement into the soil and fully mix it, so that a series of physical and chemical reactions occur between the cement and the soil, hardening the soft soil and improving the foundation strength. When constructing cement mixing piles, it is necessary to use a cement mixing pile construction device. The application number "202122624242.6" discloses a cement mixing pile construction device, which includes a base, a motor, a lifting mechanism, and a mixing pile. When used in a soft soil foundation, the mixing pile cannot compact the hole wall of the drilled hole, affecting the stability of the mixing pile. Summary of the invention

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described hereinafter.

[0004] Another object of the present invention is to provide a cement mixing pile construction device, which can compact the borehole wall by setting a compaction mechanism to improve the stability of the cement mixing pile.

[0005] In order to achieve these purposes and other advantages of the present invention, a cement mixing pile construction device is provided, comprising: A movable base, on which a support frame, a power assembly, and a support plate that can slide up and down along the support frame are provided, and the power assembly is used to drive the support plate to slide; A drill rod, which is a hollow structure, is rotatably connected to the support plate, a plurality of first sliding holes are arranged at intervals on the drill rod, the top end of the drill rod is sealed and rotatably connected to a fixed cylinder, and a connector is arranged on the side wall of the fixed cylinder; The compacting mechanism comprises a positioning cylinder arranged in the drill rod, the top end of the positioning cylinder is connected to the top end of the fixed cylinder, the positioning cylinder is provided with a plurality of second sliding holes at intervals, the plurality of second sliding holes are arranged in a one-to-one correspondence with the plurality of first sliding holes, the corresponding first sliding holes are connected to the second sliding holes through a connecting tube, and a slidable driving block is arranged in the connecting tube, one end of the driving block is located in the drill rod and the end is an inclined surface, the other end of the driving block seals and slides through the first sliding hole and extends out of the drill rod and the end is connected to an arc-shaped compacting block, a driving rod that can move up and down is arranged in the positioning cylinder, the upper part of the driving rod seals and rotates through the fixed cylinder and extends out of the fixed cylinder, a plurality of adjusting blocks are arranged on the driving rod, the plurality of adjusting blocks are arranged in a one-to-one correspondence with the plurality of driving blocks, the lower end surface of the adjusting block is an inclined surface to drive the driving block to slide, wherein a connecting rope is arranged on the driving block, and the end of the connecting rope is connected to the driving rod; A first driving assembly and a second driving assembly, wherein the first driving assembly is used to drive the drill rod to rotate, and the second driving assembly is used to drive the drive rod to move up and down.

[0006] Preferably, the height of the connecting tube is equal to the height of the first sliding hole and the second sliding hole, the width of the connecting tube is greater than the first sliding hole and the width of the connecting tube is equal to the width of the second sliding hole, the side walls of the drill rod located in the circumferential direction of the first sliding hole are provided with two springs, the driving block is provided with two first limit plates, the two springs are connected to the two first limit plates in a one-to-one manner, wherein there are two connecting ropes, and the two connecting ropes are connected to the two first limit plates in a one-to-one manner.

[0007] Preferably, the first drive assembly includes a first bracket connected to the support plate, the first bracket is provided with two rotating motors, the output shafts of the rotating motors are connected to gears, a plurality of meshing teeth are circumferentially provided on the upper part of the drill rod, and the two gears are meshed with the meshing teeth to drive the drill rod to rotate.

[0008] Preferably, the first bracket is provided with a first slide rail, the first slide rail is provided with two first sliders, the first slider is provided with an L-shaped plate, the two rotating motors are respectively arranged on the horizontal edges of the two L-shaped plates, the vertical edges of the L-shaped plates are connected with threaded rods, the two threaded rods are connected by nuts to adjust the distance between the two L-shaped plates, the first bracket is fixed with two clamping plates, the nut is located between the two clamping plates, the clamping plates are provided with through holes, and the threaded rods slide through the through holes.

[0009] Preferably, two second positioning plates are detachably connected to the lower end of the support plate, and a semicircular notch is provided on the second positioning plate, and the diameter of the notch is slightly larger than the diameter of the drill rod.

[0010] Preferably, a plurality of grooves with a superior arc shape in vertical cross-section are provided at intervals on the upper and lower surfaces of the second positioning plate, and balls are rotatably arranged in the grooves. Two second limit plates are provided at intervals on the upper part of the drill rod, and the second positioning plate is located between the two second limit plates, wherein the balls on the upper surface of the second positioning plate are in contact with the second limit plate located above, and the balls on the lower surface of the second positioning plate are in contact with the second limit plate located below.

[0011] Preferably, the second driving assembly includes a second bracket connected to the support plate, two telescopic motors arranged on the second bracket, the output shaft of the telescopic motor is connected to an L-shaped rod, the end of the L-shaped rod is connected to a rectangular limit block, and two third limit plates are arranged on the upper and lower parts of the driving rod, the distance between the third limit plates is slightly larger than the height of the limit block, and the distance between the two limit blocks is slightly larger than the diameter of the driving rod to drive the driving rod to move up and down.

[0012] Preferably, a pipe hoop is provided on the support plate, and the pipe hoop is detachably connected to the fixing tube to fix the fixing tube.

[0013] Preferably, during construction, the drill rod is first connected to the support plate, and the drill rod is driven downward by the first driving assembly to form a borehole, and then the drill rod is driven to rotate by the first driving assembly while the second driving assembly drives the driving rod to move reciprocally up and down. When the driving rod moves downward, the adjustment block drives the driving block to move toward the wall of the borehole, and when the driving rod is driven to move upward, the connecting rope pulls the driving block to move toward the driving rod, and the driving rod moves reciprocally up and down until the wall of the borehole is compacted. After the power assembly drives the drill rod to move upward to a position where the wall of the borehole is not compacted, cement is first injected into the drill rod through the connecting head, and the cement enters the borehole from the lower part of the drill rod until the cement reaches the lowest position of the drill rod. Then, the driving rod is driven reciprocally up and down by the second driving assembly, and the above operation is repeated until the drilling and grouting are completed.

[0014] The present invention has at least the following beneficial effects: The present invention realizes the compaction of the borehole wall by arranging a compaction mechanism, thereby improving the stability of the cement mixing pile; the present invention realizes the compaction of the side wall of the borehole by arranging a second driving assembly, a positioning cylinder, a first sliding hole, a second sliding hole, a driving block, a driving rod, an adjusting block, and a compacting block; the present invention realizes the prevention of cement slurry from entering the positioning cylinder by arranging a connecting pipe; the driving rod is arranged to drive the compacting block to move toward or away from the drill rod, thereby realizing the compaction of the borehole wall; the present invention arranges two second positioning plates and arranges a notch on the second positioning plates, on the one hand, the two second positioning plates can limit the drill rod and are easy to install, thereby avoiding the drill rod from tilting, and on the other hand, the second positioning plates are arranged in multiple pairs, so that the cement mixing pile construction device can limit the drill rods of different diameters; the present invention realizes the positioning effect of the drill rod by arranging the second limiting plate, thereby reducing the deviation of the drill rod during the working process, and by arranging the second limiting plate, the drill rod has a certain supporting effect, and by arranging the ball bearing, the friction between the second limiting plate and the second positioning plate is reduced, which is more conducive to the rotation of the drill rod.

[0015] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a cement mixing pile construction device according to one of the technical solutions described in the present invention; Figure 2 for Figure 1 A magnified view of middle; Figure 3 for Figure 1 Enlarged view of middle B; Figure 4 It is a structural schematic diagram of the compacting mechanism described in one of the technical solutions described in the present invention; Figure 5 It is a structural schematic diagram of the compacting mechanism described in one of the technical solutions described in the present invention; Figure 6 A schematic structural diagram of a second positioning plate according to one of the technical solutions of the present invention; Figure 7 This is a schematic structural diagram of the first bracket described in one of the technical solutions described in the present invention. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0018] like Figure 1-7 As shown, the present invention provides a cement mixing pile construction device, comprising: A movable base 1 is provided with a support frame 2, a power assembly, and a support plate 7 that can slide up and down along the support frame 2, wherein the power assembly is used to drive the support plate 7 to slide; The drill rod 9 is a hollow structure, the drill rod 9 is rotatably connected to the support plate 7, a plurality of first sliding holes are arranged at intervals on the drill rod 9, the top end of the drill rod 9 is sealed and rotatably connected to the fixed cylinder 20, and a connector 38 is arranged on the side wall of the fixed cylinder 20; The compaction mechanism includes a positioning cylinder 10 arranged in the drill rod 9, the top end of the positioning cylinder 10 is connected to the top end of the fixing cylinder 20, the positioning cylinder 10 is provided with a plurality of second sliding holes at intervals, the plurality of second sliding holes are arranged one by one with the plurality of first sliding holes, the corresponding first sliding holes are connected with the second sliding holes through a connecting pipe 23, and a slidable driving block 22 is arranged in the connecting pipe 23, one end of the driving block 22 is located in the drill rod 9 and the end is an inclined surface, and the other end of the driving block 22 is sealed and slides through the first sliding hole and extends out of the drill rod 9. An arc-shaped compacting block 21 is connected to the end of the drill rod 9, and a driving rod 11 that can move up and down is provided in the positioning cylinder 10. The upper seal of the driving rod 11 rotates through the fixed cylinder 20 and extends out of the fixed cylinder 20. A plurality of adjustment blocks 24 are provided on the driving rod 11. The plurality of adjustment blocks 24 are arranged one-to-one with the plurality of driving blocks 22. The lower end surface of the adjustment block 24 is an inclined surface to drive the driving block 22 to slide, wherein a connecting rope 30 is provided on the driving block 22, and the end of the connecting rope 30 is connected to the driving rod 11; A first driving assembly and a second driving assembly, wherein the first driving assembly is used to drive the drill rod 9 to rotate, and the second driving assembly is used to drive the drive rod 11 to move up and down.

[0019] In this technical solution, a slurry outlet is provided on the drill rod 9, and the slurry outlet is located below the compacting block 21 at the lowest position. The connector 38 is used to connect the cement slurry delivery pipe to deliver cement into the drill rod 9 and then allow the slurry to enter the borehole. The positioning tube 10 is coaxially arranged with the drill rod 9. A second slide rail is provided on the inner wall of the connecting tube 23. A second slider is provided on the driving block 22, and the second slider is slidably connected to the second slide rail. The driving block 22 is the end of an inclined surface, the lower end of the inclined surface is arranged close to the driving rod 11, and the high end of the inclined surface is arranged away from the driving rod 11. The center of the circle where the arc-shaped compacting block 21 is located is located on the central axis of the drill rod 9. The lower end surface of the adjusting block 24 is an inclined surface and the inclined surface is adjacent to the driving block The inclined surface of 22 is adapted to drive the driving block 22 to move (the lower end of the inclined surface of the adjusting block 24 is close to the driving rod 11, and the high end of the inclined surface of the adjusting block 24 is away from the driving rod 11); a spiral plate 12 is provided at the lower part of the drill rod 9. When the driving rod 11 moves upward until the compacting block 21 is in contact with the drill rod 9, the distance between the spiral plate 12 and the drill rod 9 is greater than the distance between the outer edge of the compacting block 21 and the drill rod 9; the power component adopts the existing technology, and one implementation method thereof can be specifically as follows: the power component includes a first motor 3 arranged on a movable base 1, a reel connected to the first motor 3, a wire rope arranged on the reel, and a plurality of fixed pulleys 4 arranged on the support frame 2, and the wire rope passes through the plurality of fixed pulleys 4 and is connected to the support plate 7.

[0020] During use, the drill rod 9 is first connected to the support plate 7, and the drill rod 9 is driven downward by the first driving assembly to form a borehole. At this time, the lower end of the drill rod 9 is located at the bottom of the borehole. Under the action of the wire rope, the drill rod 9 no longer continues to move downward, and the drill rod 9 continues to be driven to rotate by the first driving assembly. At the same time, the second driving assembly drives the driving rod 11 to move up and down reciprocatingly. When the driving rod 11 moves downward, the adjusting block 24 drives the driving block 22 to move toward the wall of the borehole, and the compacting block 21 squeezes the wall of the borehole. When the driving rod 11 is driven to move upward, the connecting rope 30 pulls the driving block 22 moves toward the driving rod 11 until the compacting block 21 fits with the drill rod 9, so that the second driving assembly drives the driving rod 11 to move reciprocatingly up and down until the part of the hole wall is compacted, and then the drill rod 9 moves upward to an uncompacted position under the action of the power assembly (wire rope) (the drill rod 9 is in a rotating state during the upward movement), and cement is first injected into the drill rod 9 through the connecting head 38, and the cement enters the borehole from the slurry outlet at the bottom of the drill rod 9 (this part of the hole wall has been compacted). After this part of the grouting is completed, the driving rod 11 is driven to move reciprocatingly up and down by the second driving assembly, and the above operation is repeated until the drilling and grouting are completed.

[0021] By adopting this technical solution, the present invention realizes compaction of the borehole wall by setting a compaction mechanism, thereby improving the stability of the cement mixing pile; the present invention realizes compaction of the borehole side wall by setting a second drive component, a positioning cylinder 10, a first sliding hole, a second sliding hole, a drive block 22, a drive rod 11, an adjustment block 24, and a compaction block 21; prevents cement slurry from entering the positioning cylinder 10 by setting a connecting pipe 23; and drives the compaction block 21 to move toward or away from the drill rod 9 by setting the drive rod 11, thereby realizing compaction of the borehole wall.

[0022] In another technical solution, the first sliding hole and the second sliding hole are both rectangular, the vertical section of the connecting tube 23 is rectangular, the height of the connecting tube 23 is equal to the height of the first sliding hole and the second sliding hole (the side wall of the first sliding hole is covered with a rubber ring, the upper side wall and the lower side wall of the second sliding hole are provided with a rubber layer, and the height of the rubber ring is equal to the distance between the two rubber layers), the width of the connecting tube 23 is greater than the first sliding hole and the width of the connecting tube 23 is equal to the width of the second sliding hole (the projection of the first sliding hole on the vertical plane falls within the projection of the connecting tube 23 on the vertical plane), the side wall of the drill rod 9 located in the circumferential direction of the first sliding hole is provided with two springs 28 (the two springs 28 are both located in the connecting tube 23 and are arranged on different sides of the connecting tube 23), the driving block 22 is provided with two first limit plates 29, the two springs 28 are connected to the two first limit plates 29 in a one-to-one correspondence, wherein there are two connecting ropes 30, and the two connecting ropes 30 are connected to the two first limit plates 29 in a one-to-one correspondence. By adopting this technical solution, the present invention is more conducive to the movement of the driving block 22 by providing the spring 28 and the limit plate.

[0023] In another technical solution, the first driving assembly includes a first bracket 16 connected to the support plate 7, two rotating motors 17 are arranged on the first bracket 16, the output shaft of the rotating motor 17 is connected to a gear 18, a plurality of meshing teeth 19 are arranged circumferentially on the upper part of the drill rod 9, and the two gears 18 mesh with the meshing teeth 19 to drive the drill rod 9 to rotate. With this technical solution, the present invention realizes driving the drill rod 9 to rotate by setting the rotating motor 17, the gear 18, and the meshing teeth 19.

[0024] In another technical solution, the first bracket 16 is provided with a first slide rail 33, the first slide rail 33 is provided with two first sliders, the first slider is provided with an L-shaped plate 34, two rotary motors 17 are respectively provided on the horizontal sides of the two L-shaped plates 34, the vertical sides of the L-shaped plates 34 are connected with threaded rods 35, the two threaded rods 35 are connected by nuts 36 to adjust the distance between the two L-shaped plates 34, the first bracket 16 is fixed with two clamping plates 37, the nuts 36 are located between the two clamping plates 37, the clamping plates 37 are provided with through holes, and the threaded rods 35 slide through the through holes. With this technical solution, the present invention adjusts the distance between the two rotary motors 17 through the first slide rail 33, the threaded rod 35, and the nut 36, which is not only convenient for installing the drill rod 9, but also makes the first drive assembly applicable to drive rods 11 of different diameters, thereby expanding the scope of use of the cement mixing pile construction device.

[0025] In another technical solution, the lower end of the support plate 7 is detachably connected to two second positioning plates 13 (the two second positioning plates 13 are both horizontally arranged and located on the same horizontal plane, and the detachable connection method can be connected by bolts), and a semicircular notch 31 is provided on the second positioning plate 13 (the notches 31 on the two second positioning plates 13 form a circle to allow the drill rod 9 to pass through), and the diameter of the notch 31 is slightly larger than the diameter of the drill rod 9. There are multiple pairs of second positioning plates 13 (the diameters of the notches 31 are different) to suit drill rods 9 of different diameters. The two second positioning plates are screwed together by a connecting plate 32. When in use, one of the second positioning plates 13 is first connected to the support plate 7, the drill rod 9 is placed, and then the other second positioning plate 13 is connected to the support plate 7, and finally the two second positioning plates are connected by a connecting plate. By adopting this technical solution, the present invention sets two second positioning plates 13 and sets a notch 31 on the second positioning plates 13. On the one hand, the two second positioning plates 13 can limit the drill rod 9 and facilitate installation to avoid the drill rod 9 from tilting. On the other hand, the second positioning plates 13 are set in multiple pairs so that the cement mixing pile construction device can limit the trunks of different diameters.

[0026] In another technical solution, a plurality of grooves with a superior arc shape in vertical cross section are provided on the upper and lower surfaces of the second positioning plate 13 at intervals, and balls 15 are rotatably provided in the grooves. Two second limit plates 14 are provided at intervals on the upper and lower parts of the drill rod 9, and the second positioning plate 13 is located between the two second limit plates 14, wherein the balls 15 located on the upper surface of the second positioning plate 13 are in contact with the second limit plate 14 located above, and the balls 15 located on the lower surface of the second positioning plate 13 are in contact with the second limit plate 14 located below. With this technical solution, the present invention realizes the positioning of the drill rod 9 by providing the second limit plate 14, reduces the displacement of the drill rod 9 during operation, and provides a certain support effect on the drill rod 9 by providing the second limit plate 14. At the same time, by providing the balls 15, the friction between the second limit plate 14 and the second positioning plate 13 is reduced, which is more conducive to the rotation of the drill rod 9.

[0027] In another technical solution, the second driving assembly includes a second bracket 5 connected to the support plate 7, two telescopic motors 6 arranged on the second bracket 5, the output shaft of the telescopic motor 6 is connected to an L-shaped rod 25, the end of the L-shaped rod 25 is connected to a rectangular limit block 27, and two third limit plates 26 are arranged on the driving rod 11 at intervals, the distance between the two third limit plates 26 is slightly greater than the height of the limit block 27, and the distance between the two limit blocks 27 is slightly greater than the diameter of the driving rod 11 to drive the driving rod 11 to move up and down. With this technical solution, the present invention realizes the driving rod 11 to move up and down by setting the third limit plate 26, the telescopic motor 6, and the L-shaped rod 25.

[0028] In another technical solution, a pipe hoop 8 is provided on the support plate 7, and the pipe hoop 8 is detachably connected to the fixing tube 20 to fix the fixing tube 20. By adopting this technical solution, the fixing tube 20 is fixed.

[0029] In another technical solution, during construction, the drill rod is first connected to the support plate, and the drill rod is driven downward by the first drive assembly to form a borehole. The drill rod is then driven to rotate by the first drive assembly while the second drive assembly drives the drive rod to move reciprocally up and down. When the drive rod moves downward, the adjustment block drives the drive block to move toward the wall of the borehole. When the drive rod is driven upward, the connecting rope pulls the drive block toward the drive rod. The drive rod moves reciprocally up and down until the wall of the borehole is compacted. After the power assembly drives the drill rod upward to a position where the wall of the borehole is not compacted, cement is first injected into the drill rod through the connector. The cement enters the borehole from the lower part of the drill rod until the cement reaches the lowest position of the drill rod. Then, the drive rod is driven reciprocally up and down by the second drive assembly. The above operation is repeated until the drilling and grouting are completed.

[0030] The number of equipment and processing scale described here are used to simplify the description of the present invention. The application, modification and variation of the cement mixing pile construction device of the present invention will be obvious to those skilled in the art.

[0031] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A cement mixing pile construction device, characterized in that: include: A movable base, on which a support frame, a power assembly, and a support plate that can slide up and down along the support frame are provided, and the power assembly is used to drive the support plate to slide; A drill rod, which is a hollow structure, is rotatably connected to the support plate, a plurality of first sliding holes are arranged at intervals on the drill rod, the top end of the drill rod is sealed and rotatably connected to a fixed cylinder, and a connector is arranged on the side wall of the fixed cylinder; The compacting mechanism comprises a positioning cylinder arranged in the drill rod, the top end of the positioning cylinder is connected to the top end of the fixed cylinder, the positioning cylinder is provided with a plurality of second sliding holes at intervals, the plurality of second sliding holes are arranged in a one-to-one correspondence with the plurality of first sliding holes, the corresponding first sliding holes are connected to the second sliding holes through a connecting tube, and a slidable driving block is arranged in the connecting tube, one end of the driving block is located in the drill rod and the end is an inclined surface, the other end of the driving block seals and slides through the first sliding hole and extends out of the drill rod and the end is connected to an arc-shaped compacting block, a driving rod that can move up and down is arranged in the positioning cylinder, the upper part of the driving rod seals and rotates through the fixed cylinder and extends out of the fixed cylinder, a plurality of adjusting blocks are arranged on the driving rod, the plurality of adjusting blocks are arranged in a one-to-one correspondence with the plurality of driving blocks, the lower end surface of the adjusting block is an inclined surface to drive the driving block to slide, wherein a connecting rope is arranged on the driving block, and the end of the connecting rope is connected to the driving rod; A first driving assembly and a second driving assembly, wherein the first driving assembly is used to drive the drill rod to rotate, and the second driving assembly is used to drive the drive rod to move up and down.

2. The cement mixing pile construction device according to claim 1, characterized in that: The height of the connecting tube is equal to the height of the first sliding hole and the second sliding hole, the width of the connecting tube is greater than the first sliding hole and the width of the connecting tube is equal to the width of the second sliding hole, the side walls of the drill rod located in the circumferential direction of the first sliding hole are provided with two springs, the driving block is provided with two first limit plates, the two springs are connected to the two first limit plates in a one-to-one manner, wherein there are two connecting ropes, and the two connecting ropes are connected to the two first limit plates in a one-to-one manner.

3. The cement mixing pile construction device according to claim 1, characterized in that: The first driving assembly includes a first bracket connected to the support plate, the first bracket is provided with two rotating motors, the output shafts of the rotating motors are connected with gears, a plurality of meshing teeth are circumferentially provided on the upper part of the drill rod, and the two gears mesh with the meshing teeth to drive the drill rod to rotate.

4. The cement mixing pile construction device according to claim 3, characterized in that: The first bracket is provided with a first slide rail, the first slide rail is provided with two first sliders, the first slider is provided with an L-shaped plate, the two rotating motors are respectively arranged on the horizontal edges of the two L-shaped plates, the vertical edges of the L-shaped plates are connected with threaded rods, the two threaded rods are connected by nuts to adjust the distance between the two L-shaped plates, the first bracket is fixed with two clamping plates, the nut is located between the two clamping plates, the clamping plates are provided with through holes, and the threaded rods slide through the through holes.

5. The cement mixing pile construction device according to claim 1, characterized in that: The lower end of the support plate is detachably connected to two second positioning plates, and the second positioning plates are provided with semicircular notches, the diameter of which is slightly larger than the diameter of the drill rod.

6. The cement mixing pile construction device according to claim 5, characterized in that: A plurality of grooves with superior arc-shaped vertical cross-sections are provided on the upper and lower surfaces of the second positioning plate, and balls are rotatably arranged in the grooves. Two second limit plates are provided on the upper and lower parts of the drill rod, and the second positioning plate is located between the two second limit plates, wherein the balls on the upper surface of the second positioning plate are in contact with the second limit plate located above, and the balls on the lower surface of the second positioning plate are in contact with the second limit plate located below.

7. The cement mixing pile construction device according to claim 1, characterized in that: The second driving assembly includes a second bracket connected to the support plate, two telescopic motors arranged on the second bracket, the output shaft of the telescopic motor is connected to an L-shaped rod, the end of the L-shaped rod is connected to a rectangular limit block, and two third limit plates are arranged on the upper and lower parts of the driving rod, the distance between the third limit plates is slightly larger than the height of the limit block, and the distance between the two limit blocks is slightly larger than the diameter of the driving rod to drive the driving rod to move up and down.

8. The cement mixing pile construction device according to claim 1, characterized in that: The support plate is provided with a pipe hoop, and the pipe hoop is detachably connected to the fixing tube to fix the fixing tube.

9. The cement mixing pile construction device according to claim 1, characterized in that: During construction, the drill rod is first connected to the support plate, and the drill rod is driven downward by the first driving assembly to form a borehole. The drill rod is then driven to rotate by the first driving assembly while the second driving assembly drives the driving rod to move reciprocally up and down. When the driving rod moves downward, the adjusting block drives the driving block to move toward the wall of the borehole. When the driving rod is driven to move upward, the connecting rope pulls the driving block to move toward the driving rod. The driving rod moves reciprocally up and down until the wall of the borehole is compacted. After the power assembly drives the drill rod to move upward to a position where the wall of the borehole is not compacted, cement is first injected into the drill rod through the connecting head. The cement enters the borehole from the lower part of the drill rod until the cement reaches the lowest position of the drill rod. Then, the driving rod is driven reciprocally up and down by the second driving assembly. The operation is repeated until the drilling and grouting are completed.

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