A compacted sand pile forming equipment

Abstract

The present application discloses a compacted sand pile forming device, which relates to the technical field of construction equipment, including a heavy hammer impact device and a guide device; the heavy hammer impact device includes an impact frame, a hoist and a heavy hammer; the hoist is arranged on the impact frame; the hoist can control the heavy hammer to move in the vertical direction; the guide device includes a guide tube and an elevator; the guide tube has a cavity inside, and the guide tube is inserted into the pile hole; the elevator is fixedly arranged around the pile hole and can control the guide tube to move in the vertical direction; a plurality of filling ports are opened on one side of the guide tube, and the plurality of filling ports are distributed along the axis of the guide tube; when the guide tube is inserted into the pile hole, the filling port is located on the side of the guide tube away from the impact frame. The present application can effectively improve the effect and efficiency of sand compaction, thereby effectively improving the effect and efficiency of compacted sand pile forming.

Description

Technical Field

[0001] The present application relates to the technical field of construction equipment, and in particular to a compacted sand pile forming device. Background Art

[0002] Compacted sand piles, also known as sand piles or sand pile compaction method, are a foundation reinforcement technology. Compacted sand piles are a method of strengthening the foundation by drilling holes in the soft foundation by vibration, impact or water flushing, and then squeezing sand into the soil to form a large-diameter dense sand column. It is a type of loose pile composite foundation. When the pile pipe is driven into the foundation, the lateral compaction of the soil causes the soil particles to move against each other, the particles to be close to each other, and the gaps to be reduced, thereby enhancing the skeleton effect of the soil.

[0003] An existing method of compacting sand piles is to achieve this by impact with a heavy hammer. During construction, it is necessary to first align the impact frame with the pile hole, then fill a certain amount of sand into the pile hole, and then use a crane to control the heavy hammer to enter the pile hole through free fall to compact the sand. This is done in multiple steps until the sand fills the pile hole and is compacted.

[0004] However, in the existing compacted sand pile forming method, the position state of the heavy hammer is unstable during the process of entering the pile hole through free fall, which easily causes uneven compaction of the sand by the heavy hammer, thereby affecting the compaction effect and efficiency of the sand. Summary of the invention

[0005] The present application provides a compacted sand pile forming device, which can effectively improve the effect and efficiency of sand compaction, thereby effectively improving the effect and efficiency of compacted sand pile forming.

[0006] The present application provides a compacted sand pile forming device, which adopts the following technical solution:

[0007] A compacted sand pile forming device, comprising a heavy hammer impact device and a guide device;

[0008] The heavy hammer impact device comprises an impact frame, a hoist and a heavy hammer; the impact frame is fixedly arranged on one side of the pile hole; the hoist is arranged on the impact frame; the heavy hammer is located above the pile hole and is aligned with the pile hole in the vertical direction, and the hoist can control the heavy hammer to move in the vertical direction;

[0009] The guide device comprises a guide tube and an elevator; the guide tube has a cavity inside, the guide tube is inserted into the pile hole, the outer surface of the guide tube is in contact with the hole wall of the pile hole, and the weight is matched with the cavity; the elevator is fixedly arranged around the pile hole and can control the guide tube to move in the vertical direction;

[0010] A plurality of filling ports communicating with the cavity are provided on one side of the guide tube, and the plurality of filling ports are distributed along the axis of the guide tube; when the guide tube is inserted into the pile hole, the filling ports are located on a side of the guide tube away from the impact frame.

[0011] By adopting the above technical scheme, the guide tube can guide the free fall of the heavy hammer, thereby improving the compaction effect and efficiency of the heavy hammer on the sand material; at the same time, the filling port can facilitate the construction workers to fill the sand material into the pile hole; in addition, the guide tube can protect the pile hole, improve the structural stability of the pile hole, and effectively reduce the probability of deformation and collapse of the pile hole caused by the heavy hammer compacting the sand material, thereby effectively improving the effect and efficiency of compacted sand piles.

[0012] Optionally, a plurality of the filling ports are evenly spaced on the guide tube, the spacing between adjacent filling ports is equal to the length of the sand pile compacted each time, and the distance the elevator controls the guide tube to move each time is equal to the spacing between adjacent filling ports.

[0013] By adopting the above technical solution, each time after filling and compacting the sand, the elevator will control the guide tube to move upward, leaving sufficient space under the guide tube for the next sand compaction, and at the same time, it can be convenient for the construction workers to fill the sand into the pile hole through the filling port next time, which is convenient for the construction workers to operate and can further improve the efficiency of compacted sand piles.

[0014] Optionally, the heavy hammer impact device further comprises a detector, and the detector is arranged on one side of the pile hole;

[0015] The weight is provided with a plurality of markers for detection by the detector, the plurality of markers are evenly spaced on the weight, and the spacing between adjacent markers is equal to the spacing between adjacent filling ports;

[0016] A plurality of clearance openings are provided on one side of the guide tube. When the guide tube is inserted into the pile hole, the detector can detect the position change of the marker along the vertical direction through the clearance openings.

[0017] By adopting the above technical scheme, the detector can detect the penetration amount of the heavy hammer into the sand material each time, so that the construction personnel can judge whether the sand material is sufficiently compacted by the size of the penetration amount, and thus can conveniently judge whether to carry out the next filling compaction, thereby further improving the effect and efficiency of compacted sand piles.

[0018] Optionally, the detector is arranged on a side of the impact frame close to the pile hole, and the clearance port is located on a side of the guide pipe away from the filling port.

[0019] By adopting the above technical solution, the position stability of the detector during operation can be improved, thereby improving the detection accuracy of the detector for the penetration amount of the heavy hammer into the sand material each time.

[0020] Optionally, a cover plate is rotatably provided on the guide tube at each of the plurality of filling ports;

[0021] The rotation axis of the cover plate is perpendicular to the axis of the guide tube, and a guide groove capable of guiding sand material to pass through the filling port is provided on a side of the cover plate close to the cavity;

[0022] When the cover plate is rotated to an extreme position in a direction approaching the cavity, the cover plate can cover the filling port; when the cover plate is rotated to an extreme position in a direction away from the cavity, the cover plate will pass through the filling port.

[0023] By adopting the above technical solution, when the filling port is used to fill sand, rotating the cover plate to open it can facilitate construction workers to send sand into the cavity through the filling port and drop it into the pile hole, while reducing the probability of sand remaining on the surface due to filling operation errors.

[0024] Optionally, a rotating member is rotatably provided at the bottom of the cover plate, and after the rotating member rotates in a direction away from the cover plate, two blanking openings can be formed at the bottom of the cover plate, and at this time, the two blanking openings are respectively located on both sides of the rotating member.

[0025] By adopting the above technical solution, in the process of filling sand into the cavity with the guide groove as a guide, the sand moving along the guide groove can fall into the pile hole at two drop-out ports under the interference of the position of the rotating part, so that the distribution of sand at the bottom of the pile hole is more uniform, thereby further improving the quality of the compacted sand pile.

[0026] Optionally, when the cover plate rotates to the extreme position in the direction approaching the cavity, the rotating member can rotate in the direction approaching the cover plate under the limitation of the guide tube; when the cover plate rotates to the extreme position in the direction away from the cavity, the rotating member can rotate in the direction away from the cover plate under the action of its own gravity.

[0027] By adopting the above technical solution, the position of the rotating member can be adjusted relative to the rotation of the cover plate as the cover plate rotates, thereby making it convenient for construction personnel to control the rotation of the rotating member and improving construction efficiency.

[0028] Optionally, a telescopic plate is movably connected to the top of the cover plate, and the movable direction of the telescopic plate is parallel to the direction in which the cover plate guides the movement of the sand material.

[0029] By adopting the above technical solution, construction workers can control the movement of the telescopic plate according to needs during the process of filling sand, so that the top of the cover plate extends outward, making it convenient for construction workers to pour a certain amount of sand onto the telescopic plate and then enter the cavity along the guide groove of the cover plate.

[0030] Optionally, the telescopic plate is sleeved and matched with the top of the cover plate; when the telescopic plate moves to an extreme position in a direction close to the cover plate, the cover plate can be rotated to cover the filling port.

[0031] By adopting the above technical solution, the probability of sand getting stuck at the connection between the telescopic plate and the cover plate can be reduced, so that the sand can smoothly enter the cavity along the guide groove, and at the same time, the construction personnel can perform more standardized rotation and adjustment operations on the cover plate.

[0032] Optionally, the lift includes a base, two abutment wheels and two driving members;

[0033] The base has a through-hole whose size is larger than the pile hole, and the through-hole is located above the pile hole and aligned with the pile hole in the vertical direction;

[0034] The abutment wheel is rotatably connected to the base, and the rotation axes of the two abutment wheels are parallel to each other; the guide tube is located between the two abutment wheels and contacts and abuts against the two abutment wheels at the same time, and the rotation axis of the abutment wheel is perpendicular to the axis of the guide tube;

[0035] The two driving members correspond to the two abutting wheels one by one, the driving members are arranged on the base, and the two driving members respectively drive the two abutting wheels to rotate synchronously and in opposite directions.

[0036] By adopting the above technical solution, the process of controlling the movement of the guide tube by the elevator can be made more convenient and quick, and the movement of the guide tube can be made safer and more stable.

[0037] In summary, the present application includes at least one of the following beneficial effects:

[0038] 1. It can effectively improve the effect and efficiency of sand compaction, thereby effectively improving the effect and efficiency of compacted sand piles;

[0039] 2. It can reliably protect the pile hole during the compaction sand pile forming process, improve the structural stability of the pile hole, and thus further effectively improve the compaction sand pile forming effect;

[0040] 3. It is convenient for construction workers to know the compaction status of sand materials, so that they can add new sand materials in time for compaction again after the sand materials are fully compacted, which can further effectively improve the effect and efficiency of compaction sand piles;

[0041] 4. It can be convenient for construction workers to fill sand into the pile hole, and at the same time, it can make the filled sand more evenly distributed in the pile hole, thereby further effectively improving the effect of compacted sand pile formation. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a schematic diagram of the structure of a compacted sand pile forming device according to an embodiment of the present application (the foundation is omitted);

[0043] Figure 2 It is a partial cross-sectional view of a compacted sand pile forming device during compaction in an embodiment of the present application (partial structure of the heavy hammer impact device is omitted);

[0044] Figure 3 is a schematic diagram of the structure of the guide device in the embodiment of the present application (the foundation is omitted);

[0045] Figure 4 It is a partial structural schematic diagram of a compacted sand pile forming device according to an embodiment of the present application (partial structure of the foundation and the heavy hammer impact device are omitted);

[0046] Figure 5 yes Figure 2 The enlarged view of point A in the middle;

[0047] Figure 6 It is a partial cross-sectional view of a compacted sand pile forming device during the filling process of the embodiment of the present application (partial structure of the heavy hammer impact device is omitted);

[0048] Figure 7 yes Figure 6 Enlarged view of point B in the middle.

[0049] Explanation of the reference numerals in the accompanying drawings: 1. foundation; 11. pile hole; 2. heavy hammer impact device; 21. impact frame; 22. heavy hammer; 23. crane; 24. detector; 25. marker; 3. guide device; 31. guide tube; 311. cavity; 312. clearance port; 313. filling port; 314. cover plate; 3141. guide groove; 315. rotating part; 3151. blanking port; 316. telescopic plate; 32. elevator; 321. base; 3211. through-mouth; 322. abutment wheel; 323. driving part. DETAILED DESCRIPTION

[0050] The following is combined with Figure 1-7 This application is described in further detail.

[0051] Reference Figure 1 and Figure 2 The embodiment of the present application discloses a compacted sand pile forming device, which is used to fill sand into a pile hole 11 excavated on a foundation 1 and compact it to reinforce the foundation 1.

[0052] The compacted sand pile forming equipment includes a heavy hammer impact device 2 and a guide device 3. The heavy hammer impact device 2 is used to impact the sand material filled in the pile hole 11 to compact the sand material; the guide device 3 is used to guide the impact direction of the heavy hammer impact device 2, and at the same time, it can facilitate the construction personnel to fill the sand material into the pile hole 11, and can support the pile hole 11 in the process of compacted sand pile forming.

[0053] Reference Figure 1 and Figure 3 The heavy hammer impact device 2 includes an impact frame 21, a heavy hammer 22 and a hoist 23. The impact frame 21 is used to keep the heavy hammer impact device 2 stable on the foundation 1 during its operation; the heavy hammer 22 is used to impact and compact the sand in the pile hole 11; the hoist 23 is used to control the heavy hammer 22 to move upward, so that the heavy hammer 22 can freely fall into the pile hole 11 to impact and compact the sand.

[0054] Reference Figure 1 and Figure 4 , the impact frame 21 is fixedly placed on one side of the pile hole 11 by its own weight; the weight 22 is a cylindrical structure, and the radial dimension of the weight 22 is smaller than the radial dimension of the pile hole 11, so that the weight 22 can enter the pile hole 11 to impact and compact the sand material; the hoist 23 is fixedly installed on the impact frame 21, and the rope extending from one end of the hoist 23 is fixedly connected to one end of the axial direction of the weight 22, which can control the weight 22 to move in the vertical direction, and the weight 22 keeps the axis vertical during the movement. In this embodiment, it is preferred that the length of the weight 22 is equal to the length of the pile hole 11, and it is preferred that the hoist 23 controls the weight 22 to move upward to the extreme position, at which time there is a certain distance between the weight 22 and the foundation 1; since the impact frame 21, the weight 22 and the hoist 23 with the above functions are all existing technologies in the field, they are not described here in detail, and they are only briefly represented in the attached drawings.

[0055] Reference Figure 2 and Figure 4 The heavy hammer impact device 2 also includes a detector 24 and a plurality of markers 25. The detector 24 is used to detect the penetration amount of the heavy hammer 22 into the sand material in the pile hole 11 each time when the heavy hammer 22 impacts and tamps the sand material in the pile hole 11; the markers 25 are the targets detected by the detector 24, which facilitates the detector 24 to realize the above detection function.

[0056] The marker 25 is annular in structure as a whole and is fixedly installed on the outer side of the weight 22 in an embedded manner; the axis of the marker 25 coincides with the axis of the weight 22, and multiple markers 25 are evenly spaced on the weight 22 along the axis of the weight 22, and the spacing between adjacent markers 25 is equal to the length of the pile after the pile hole 11 is filled with sand and compacted each time, so that the detector 24 has adjacent markers 25 for detection during each impact and compaction process.

[0057] The detector 24 is fixedly mounted on the impact frame 21, and is located on the side of the impact frame 21 close to the pile hole 11, and the detection area of ​​the detector 24 faces the position of the pile hole 11. In the process of the heavy hammer 22 impacting and compacting the sand material in the pile hole 11, the construction personnel can know the displacement change (i.e. the above-mentioned penetration amount) of the heavy hammer 22 after two impacts and compactions through the detector 24, and can judge whether the sand material in the pile hole 11 is fully compacted according to the size of the penetration amount, so that the construction personnel can fill a certain amount of new sand material into the pile hole 11 in time for the next impact and compaction. In this embodiment, since the detector 24 and the marker 25 with the above-mentioned functions are both common existing technologies, they are not described here in detail, and they are only briefly shown in the drawings.

[0058] Reference Figure 2 and Figure 3 The guide device 3 includes a guide tube 31 and an elevator 32. The guide tube 31 is used to guide the free fall of the weight 22, and can support the pile hole 11, and can facilitate the construction workers to fill a certain amount of sand into the pile hole 11; the elevator 32 is used to drive the guide tube 31 to move in and out of the pile hole 11, so that the guide tube 31 leaves space for the sand to be compacted below it in the pile hole 11.

[0059] The guide tube 31 is a hollow cylindrical structure as a whole, and the guide tube 31 has a cylindrical cavity 311 inside; the radial dimension of the guide tube 31 is adapted to the radial dimension of the pile hole 11, so that the guide tube 31 can be inserted into the pile hole 11; the radial dimension of the cavity 311 is adapted to the radial dimension of the weight 22, so that the weight 22 can smoothly enter and exit the cavity 311 and can smoothly perform free fall in the cavity 311. In this embodiment, it is preferred that the radial dimension of the guide tube 31 is equal to the radial dimension of the pile hole 11, the radial dimension of the weight 22 is equal to the radial dimension of the cavity 311, and the length dimension of the guide tube 31 is equal to the length dimension of the pile hole 11.

[0060] Reference Figure 2 and Figure 4, a plurality of clearance openings 312 communicating with the cavity 311 are provided on one side of the guide tube 31. When the weight 22 enters the cavity 311, the plurality of markers 25 on the weight 22 can be exposed to the outside through the plurality of clearance openings 312, so that the detector 24 can detect the position change of the markers 25. In this embodiment, preferably, a total of one clearance opening 312 is provided on the guide tube 31, and the clearance opening 312 extends in a direction parallel to the axis of the guide tube 31 to form a waist-shaped hole; when the guide tube 31 is partially inserted into the pile hole 11 and partially located outside the pile hole 11, the clearance opening 312 faces the impact frame 21, so that the detector 24 can align with the clearance opening 312 along its own detection direction.

[0061] Reference Figure 2 and Figure 3 A plurality of filling ports 313 communicating with the cavity 311 are provided on one side of the guide tube 31 away from the clearance port 312, so that construction workers can conveniently deliver a certain amount of sand into the cavity 311 through the filling port 313 located above the foundation 1 and closest to the pile hole 11, and deliver the sand to the bottom of the pile hole 11 through the cavity 311; the filling port 313 is a square port as a whole, and a plurality of filling ports 313 are evenly spaced on the guide tube 31 along the axial direction of the guide tube 31, and the spacing between adjacent filling ports 313 is equal to the length of the pile after the sand is filled into the pile hole 11 each time, so that after each movement and adjustment of the guide tube 31, there is always a complete filling port 313 (that is, the filling port 313 is completely located above the foundation 1) near the pile hole 11 for sand to be filled.

[0062] Reference Figure 3 and Figure 5 Furthermore, in order to make it more convenient for construction workers to fill sand materials through the filling ports 313, it is preferred that the guide tube 31 is rotatably installed with a cover plate 314 for controlling the opening and closing of the filling ports 313 at multiple filling ports 313.

[0063] The cover plate 314 is an arc-shaped plate structure as a whole, and its width direction extends along an arc trajectory; both ends of the cover plate 314 in the arc direction are rotatably connected to the guide tube 31, the rotation axis of the cover plate 314 is perpendicular to its own length direction, and the rotation axis of the cover plate 314 is centered along its own length direction; the cover plate 314 has an arc-shaped guide groove 3141 on one side close to the cavity 311, which can guide the sand material poured onto the cover plate 314.

[0064] Reference Figure 2 and Figure 6 The cover plate 314 is limited in its rotation relative to the guide tube 31 .

[0065] Reference Figure 5 and Figure 7When the cover plate 314 rotates to the extreme position in the direction close to the cavity 311, the length direction of the cover plate 314 is parallel to the axial direction of the guide tube 31, and the cover plate 314 can cover the corresponding filling port 313; when the cover plate 314 rotates to the extreme position in the direction away from the cavity 311, the length direction of the cover plate 314 is inclined relative to the axial direction of the guide tube 31; at this time, the end of the cover plate 314 close to the cavity 311 is the inclined lower end and is located in the cavity 311, and at this time, the end of the cover plate 314 away from the cavity 311 is located outside the guide tube 31, which is convenient for construction personnel to pour sand into the guide groove 3141 and then enter the cavity 311 through the corresponding filling port 313 along the guide groove 3141 under the action of its own gravity. In this embodiment, it is preferred that the cover plate 314 can maintain the position state at this time when it rotates to the extreme position relative to the guide tube 31, which can be achieved by magnetic fixation and other methods. The method for achieving the above effect is not further limited here, and the related structures for achieving the above effect are omitted in the accompanying drawings.

[0066] Reference Figure 6 and Figure 7 Furthermore, in order to improve the uniformity of the distribution of sand at the bottom of the pile hole 11 after the construction workers fill the sand into the pile hole 11 through the cover plate 314, thereby improving the effect and efficiency of subsequent sand impact compaction, it is preferred that a rotating part 315 is rotatably installed at the bottom of the cover plate 314.

[0067] The rotating member 315 is an arc-shaped strip structure as a whole, and both ends of the arc track of the rotating member 315 are rotatably connected to the cover plate 314, and the rotation axis of the rotating member 315 is parallel to the rotation axis of the cover plate 314. The rotating member 315 can rotate relative to the cover plate 314 spontaneously under the action of its own gravity.

[0068] When the cover plate 314 rotates to the extreme position in the direction away from the cavity 311, the rotating member 315 will rotate in the direction away from the cover plate 314 under the action of its own gravity, so that two drop openings 3151 are formed on both sides of the rotating member 315 at the bottom of the cover plate 314, and the two drop openings 3151 are both located in the cavity 311; when the sand moves toward the cavity 311 along the guide groove 3141, the sand leaving the cover plate 314 will fall onto the rotating member 315, and after contacting the rotating member 315, it will fall downward to the bottom of the pile hole 11 through the two drop openings 3151.

[0069] Reference Figure 2 and Figure 5In the process of the cover plate 314 rotating to the extreme position in the direction close to the cavity 311, the rotating member 315 will be subjected to the force to rotate to the extreme position in the direction close to the cover plate 314 after being interfered with by its own position and the position of the guide tube 31, so that the rotating member 315 and the cover plate 314 form a whole to ensure the covering effect of the cover plate 314 on the filling port 313.

[0070] Reference Figure 3 and Figure 7 Furthermore, in order to further facilitate the construction workers to pour the sand onto the cover plate 314 and reduce the probability of the sand falling onto the surface of the foundation 1 during the process of pouring onto the cover plate 314, it is preferred that a telescopic plate 316 is also movably installed on the top of the cover plate 314.

[0071] The telescopic plate 316 is a hollow arc-shaped plate structure as a whole. The telescopic plate 316 is sleeved and matched with the top of the cover plate 314 , and its movable direction is parallel to the length direction of the cover plate 314 .

[0072] Reference Figure 5 and Figure 7 , the telescopic plate 316 is limited in its movement relative to the cover plate 314. When the telescopic plate 316 moves to the extreme position in the direction away from the cover plate 314, there is still a connection between the telescopic plate 316 and the cover plate 314, and the construction personnel can pour the sand onto the telescopic plate 316, and the sand will move along the telescopic plate 316 to the cover plate 314, and then move along the cover plate 314 through the filling port 313 into the cavity 311; when the telescopic plate 316 moves to the extreme position in the direction close to the cover plate 314, the cover plate 314 can rotate to the extreme position in the direction close to the cavity 311 to cover the filling port 313. In this embodiment, it is preferred that the telescopic plate 316 can maintain the current position state after the movement and adjustment relative to the cover plate 314, which can be achieved by magnetic fixation and the like. The method for achieving the above effect is not further limited here, and the related structures for achieving the above effect are omitted in the accompanying drawings.

[0073] Reference Figure 3 and Figure 7 In actual application, in order to facilitate the construction personnel to control the movement of the telescopic plate 316 relative to the cover plate 314, it is preferred that an embedded handle is provided on the side of the telescopic plate 316 away from the cover plate 314. In this embodiment, since the above-mentioned embedded handle is a common prior art, it is not described in detail here, and it is only briefly shown in the drawings.

[0074] Reference Figure 2 and Figure 3The lift 32 includes a base 321, two abutment wheels 322 and two driving members 323. The base 321 is used to keep the lift 32 fixed on the foundation 1; the abutment wheels 322 are used to contact and abut against the surface of the guide tube 31; and the driving member 323 is used to provide power to the abutment wheels 322, and control the movement of the guide tube 31 through the abutment wheels 322.

[0075] The base 321 is a rectangular parallelepiped structure as a whole, and a through hole 3211 having a size larger than the pile hole 11 is opened in the middle of the base 321 for the guide tube 31 to pass through during the movement. After the base 321 is fixed on the foundation 1, the axis of the through hole 3211 coincides with the axis of the pile hole 11, and the width direction of the base 321 is parallel to the opening direction of the clearance opening 312 and the opening direction of the filling opening 313 on the guide tube 31.

[0076] The abutment wheel 322 is a cylindrical structure as a whole, and the radial surface of the abutment wheel 322 has a groove structure for expanding the contact area between itself and the guide tube 31, and there is a sufficiently large friction force between the abutment wheel 322 and the guide tube 31; the abutment wheel 322 is rotatably connected to the base 321, and the rotation axis of the abutment wheel 322 coincides with its own axis and is parallel to the length direction of the base 321; the two abutment wheels 322 are respectively located on both sides of the axis of the through-opening 3211 along the length direction of the base 321, and when the guide tube 31 is partially inserted into the pile hole 11, the two abutment wheels 322 are respectively located on both sides of the guide tube 31 and both contact and abut against the surface of the guide tube 31.

[0077] The two driving members 323 correspond to the two abutting wheels 322 one by one, and the driving members 323 are fixedly mounted on the base 321, and can drive the corresponding abutting wheels 322 to rotate. The two driving members 323 are connected by signals, so that the two driving members 323 can drive the two abutting wheels 322 to rotate synchronously and in opposite directions. In this embodiment, the driving member 323 is preferably a servo motor; since the servo motor is a common prior art, it will not be described in detail here, and it is only briefly shown in the drawings.

[0078] The implementation principle of a compacted sand pile forming device in the embodiment of the present application is as follows:

[0079] During the compaction sand pile formation process, the construction personnel first control the cover plate 314 to rotate to open the filling port 313, and then fill a certain amount of sand into the bottom of the pile hole 11 through the cover plate 314, and then control the cover plate 314 to rotate to cover the filling port 313; then control the crane 23 to operate, control the weight 22 to move upward for multiple times, and then let it freely fall into the pile hole 11 to impact and compact the sand; during the compaction process, the construction personnel judge whether the compaction after the filling is sufficient through the detection result of the detector 24. After the compaction is sufficient, first control the crane 23 to drive the weight 22 to move upward to the limit position, and then control the elevator 32 to drive the guide tube 31 to move upward a certain distance, and then repeat the above steps again to fill a certain amount of sand into the pile hole 11, and then control the crane 23 to operate and control the weight 22 to impact and compact.

[0080] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A compacted sand pile forming device, characterized in that: It comprises a heavy hammer impact device (2) and a guide device (3); The heavy hammer impact device (2) comprises an impact frame (21), a hoist (23) and a heavy hammer (22); the impact frame (21) is fixedly arranged on one side of the pile hole (11); the hoist (23) is arranged on the impact frame (21); the heavy hammer (22) is located above the pile hole (11) and is aligned with the pile hole (11) in the vertical direction, and the hoist (23) can control the heavy hammer (22) to move in the vertical direction; The guide device (3) comprises a guide tube (31) and an elevator (32); the guide tube (31) has a cavity (311) inside, the guide tube (31) is inserted into the pile hole (11), the outer surface of the guide tube (31) is in contact with the hole wall of the pile hole (11), and the weight (22) is matched with the cavity (311); the elevator (32) is fixedly arranged around the pile hole (11) and can control the guide tube (31) to move in the vertical direction; A plurality of filling ports (313) communicating with the cavity (311) are provided on one side of the guide tube (31), and the plurality of filling ports (313) are distributed along the axis of the guide tube (31); when the guide tube (31) is inserted into the pile hole (11), the filling ports (313) are located on a side of the guide tube (31) away from the impact frame (21); Cover plates (314) are rotatably provided on the guide tube (31) at the plurality of filling ports (313); The rotation axis of the cover plate (314) is perpendicular to the axis of the guide tube (31), and a guide groove (3141) capable of guiding sand material to pass through the filling port (313) is provided on a side of the cover plate (314) close to the cavity (311); When the cover plate (314) is rotated to an extreme position in a direction close to the cavity (311), the cover plate (314) can cover the filling port (313); when the cover plate (314) is rotated to an extreme position in a direction away from the cavity (311), the cover plate (314) will pass through the filling port (313); A rotating member (315) is rotatably provided at the bottom of the cover plate (314); after the rotating member (315) rotates in a direction away from the cover plate (314), two material drop openings (3151) can be formed at the bottom of the cover plate (314); at this time, the two material drop openings (3151) are respectively located on two sides of the rotating member (315).

2. The compacted sand pile forming equipment according to claim 1, characterized in that: The plurality of filling ports (313) are evenly spaced on the guide tube (31), the spacing between adjacent filling ports (313) is equal to the length of the sand pile compacted and formed each time, and the distance that the elevator (32) controls the guide tube (31) to move each time is equal to the spacing between adjacent filling ports (313).

3. The compacted sand pile forming equipment according to claim 2, characterized in that: The heavy hammer impact device (2) further comprises a detector (24), and the detector (24) is arranged on one side of the pile hole (11); The weight (22) is provided with a plurality of markers (25) for detection by the detector (24), the plurality of markers (25) being distributed at equal intervals on the weight (22), and the interval between adjacent markers (25) is equal to the interval between adjacent filling ports (313); A plurality of clearance openings (312) are provided on one side of the guide tube (31). When the guide tube (31) is inserted into the pile hole (11), the detector (24) can detect the position change of the marker (25) in the vertical direction through the clearance openings (312).

4. The compacted sand pile forming equipment according to claim 3, characterized in that: The detector (24) is arranged on a side of the impact frame (21) close to the pile hole (11), and the clearance port (312) is located on a side of the guide tube (31) away from the filling port (313).

5. The compacted sand pile forming equipment according to claim 1, characterized in that: When the cover plate (314) rotates to an extreme position in a direction approaching the cavity (311), the rotating member (315) can rotate in a direction approaching the cover plate (314) under the limit of the guide tube (31); when the cover plate (314) rotates to an extreme position in a direction away from the cavity (311), the rotating member (315) can rotate in a direction away from the cover plate (314) under the action of its own gravity.

6. The compacted sand pile forming equipment according to claim 1, characterized in that: The top of the cover plate (314) is also movably connected to a telescopic plate (316), and the movement direction of the telescopic plate (316) is parallel to the direction in which the cover plate (314) guides the movement of the sand material.

7. The compacted sand pile forming equipment according to claim 6, characterized in that: The telescopic plate (316) is sleeved and matched with the top of the cover plate (314); when the telescopic plate (316) moves to an extreme position in a direction close to the cover plate (314), the cover plate (314) can rotate to cover the filling port (313).

8. The compacted sand pile forming equipment according to claim 1, characterized in that: The elevator (32) comprises a base (321), two abutment wheels (322) and two driving members (323); The base (321) has a through-hole (3211) whose size is larger than the pile hole (11), and the through-hole (3211) is located above the pile hole (11) and is aligned with the pile hole (11) in the vertical direction; The abutment wheel (322) is rotatably connected to the base (321), and the rotation axes of the two abutment wheels (322) are parallel to each other; the guide tube (31) is located between the two abutment wheels (322) and is in contact with and abuts against the two abutment wheels (322) at the same time, and the rotation axis of the abutment wheel (322) is perpendicular to the axis of the guide tube (31); The two driving members (323) correspond to the two abutting wheels (322) one by one, the driving members (323) are arranged on the base (321), and the two driving members (323) respectively drive the two abutting wheels (322) to rotate synchronously and in opposite directions.

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