A ramming device and method for preventing cracks in a ground foundation plant floor

Abstract

The application discloses a ramming device and method for preventing cracks of a ground foundation plant ground, and belongs to the technical field of ground foundation construction equipment. The ramming device comprises a moving mechanism and a ramming mechanism. The moving mechanism comprises a set of guide rail frames arranged oppositely and two rotating shafts arranged between the guide rail frames. The ramming mechanism comprises two supporting blocks arranged oppositely and a cross plate connected with the two supporting blocks. The supporting blocks are provided with connecting blocks connected with the rotating shafts. The cross plate is connected with a first pressing block through a first guide rod, and the first guide rod is connected with the rotating shaft through a connecting rod. The first pressing block reciprocally moves under the driving of a driving assembly to ram the ground foundation. Meanwhile, the first guide rod drives the rotating shaft to rotate unidirectionally through the connecting rod, so that the rotating shaft can move along the length direction of the guide rail frame, to ensure that the moving speed and direction of the ramming mechanism are accurately controlled, and the uniformity of ramming of different parts of the ground foundation is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of foundation construction equipment, more specifically, relates to a ramming device for preventing cracks in the floor of a fill foundation plant and a ramming method. BACKGROUND

[0002] The settlement of the foundation caused by the insufficient compaction of the fill foundation is one of the main reasons for the cracking of the floor. This is because when the compaction of the fill foundation is insufficient, it means that the voids between the fillers are large, which cannot effectively support the upper structure and load, thereby causing the foundation settlement. This settlement not only affects the stability of the ground, but also can cause the floor to crack, affecting the safety and service life of the building.

[0003] In order to prevent the cracking of the floor caused by the settlement of the foundation, a series of measures need to be taken to improve the compaction of the fill foundation and ensure the stability and bearing capacity of the foundation. Various kinds of foundation ramming equipment are provided in the prior art. For example, in the patent CN112376542A, a foundation ramming device for building construction is disclosed. In this patent, the pressure block can roll on the ground in a small range to compact the ground, avoiding direct stamping, and achieving the advantage of rapid compaction.

[0004] In the patent CN117449284A, a building foundation construction device is disclosed. In this patent, the upper surface of the foundation is compacted by the compaction part, so that the second ramming block can smoothly jump out of the small pit, avoiding affecting the ramming effect of the foundation.

[0005] In the patent CN213681591U, a ramming device for road construction is disclosed. In this patent, the inclination of the supporting leg is controlled, so that the device can be fixed and stable on uneven road surface, and the rammer can apply force vertically.

[0006] In the patent CN213267812U, a building foundation ramming device is disclosed. In this patent, the roller is used to initially compact the soft soil, facilitating the walking of the subsequent ramming machine, and solving the problems of inconvenience and time-consuming and labor-intensive.

[0007] The above-mentioned applications all involve technical improvements of the foundation ramming equipment, but still have certain optimization space. For example, in CN117449284A, manual control is needed to control the moving direction of the device, which not only increases the labor intensity, but also cannot accurately control the moving speed and direction, thereby easily leading to uneven compaction of different parts of the foundation. At the same time, in this application, the compaction block cannot be attached to the side of the foundation due to the setting of the compaction part and the moving mechanism, which is very inconvenient for the compaction operation at the corner of the foundation. SUMMARY

[0008] 1. Problem to be solved

[0009] In view of at least some problems existing in the prior art, the present application provides a ramming device for anti-cracking of a filled soil foundation plant floor, which aims to solve the problem that the moving speed and direction of the existing foundation ramming device cannot be accurately controlled during movement, thereby easily leading to uneven ramming of different parts of the foundation.

[0010] 2. Technical solutions

[0011] To solve the above problems, the technical solutions adopted by the present application are as follows:

[0012] The ramming device for anti-cracking of a filled soil foundation plant floor comprises a moving mechanism,

[0013] The moving mechanism comprises a set of guide rail frames arranged oppositely, and two rotating shafts arranged between the guide rail frames;

[0014] and a ramming mechanism,

[0015] The ramming mechanism comprises two support blocks arranged oppositely and a cross plate connecting the two support blocks; wherein the support blocks are provided with connecting blocks rotatably connected with the rotating shafts;

[0016] The cross plate is connected with a first pressing block through a first guide rod, and the first guide rod is connected with the rotating shaft through a connecting rod; the first pressing block moves back and forth under the driving of a driving assembly to ram the foundation; at the same time, the first guide rod drives the rotating shaft to rotate unidirectionally through the connecting rod, so that the rotating shaft can move along the length direction of the guide rail frame.

[0017] Further, a connecting column is arranged on the first guide rod, a waist-shaped hole for the connecting column to slide is arranged on the connecting rod, and the connecting rod is connected with the rotating shaft through a one-way bearing, so that the first guide rod can drive the rotating shaft to rotate during the rising process.

[0018] Further, the one-way bearing is sleeved on the rotating shaft, and the connecting rod is sleeved on the one-way bearing through the sleeve ring at the end thereof; the guide rail frame is provided with a roller connected with the end of the rotating shaft.

[0019] Further, the driving assembly comprises a crankshaft and a driving source driving the crankshaft to rotate; wherein the crankshaft is connected with a sliding rod through a rotating rod, and the end of the sliding rod penetrates the cross plate and is connected with the first pressing block.

[0020] Further, the driving source is a motor, and the output shaft of the motor is provided with a first protrusion matched with a second protrusion at the end of the crankshaft.

[0021] Further, the bottom of the support block is provided with a second pressing block, and the two second pressing blocks are connected by a connecting rod; the bottom of the first pressing block is provided with an avoiding slot for the connecting rod to be clamped into, so that the bottom of the first pressing block is flush with the bottom of the second pressing block after the first pressing block is pressed down, to jointly compact the foundation; the second pressing block is connected with a reset spring.

[0022] Further, the second pressing block is slidingly connected with the connecting block through a second guide rod, and the reset spring is sleeved on the second guide rod and located below the connecting block.

[0023] Further, the compacting device further comprises a discharging mechanism, the discharging mechanism comprises a material box arranged on the support block, the material box is communicated with the inner cavity of the support block through a first discharging port in the bottom of the material box, and the support block is provided with a second discharging port; the first pressing block is connected with a blocking plate, and the blocking plate blocks the second discharging port when the first pressing block moves downward.

[0024] Further, the material box is provided with a material dispersing rod, the material dispersing rod is connected with the first guide rod through a connecting piece and moves up and down synchronously with the first guide rod, and is used for dispersing and discharging the filling soil in the material box.

[0025] The application further provides a method for compacting a foundation by using the compacting device for preventing cracks of a filling foundation factory floor, and the method comprises the following steps.

[0026] The compacting device is placed on the corresponding foundation pit, and the filling soil is filled into the material box;

[0027] The driving source of the compacting mechanism is started to drive the first pressing block to move up and down reciprocatingly to compact the foundation;

[0028] During the upward movement of the first pressing block, the first guide rod and the connecting rod are driven to rotate the rotating shaft, so that the compacting mechanism is driven to move along the length direction of the guide rail frame, and the compacting and moving are realized simultaneously.

[0029] Meanwhile, during the upward and downward reciprocating movement of the first pressing block, the filling soil in the material box falls into the corresponding foundation pit, and the compacting and filling are realized simultaneously.

[0030] 3. Advantageous effects

[0031] Compared with the prior art, the application has the following advantageous effects:

[0032] (1) The ramming device for anti-cracking of filled soil foundation plant floor of the application, through the cooperation of the moving mechanism and the ramming mechanism, when the first pressing block reciprocates up and down to ram the foundation, at this time, through the transmission of the first guide rod and the connecting rod, the rotating shaft can be driven to rotate, and then the ramming mechanism is driven to move along the length direction of the guide rail frame, so that the moving speed and direction of the ramming mechanism are accurately controlled, which is beneficial to ensure the uniformity of ramming of different parts of the foundation.

[0033] (2) The ramming device for anti-cracking of filled soil foundation plant floor of the application, one end of the first guide rod is provided with a waist-shaped hole for the sliding of the connecting column on the first guide rod, and the other end is connected with the rotating shaft through a one-way bearing, so that the first guide rod can drive the rotating shaft to rotate during the rising process, and then the one-way rotation of the rotating shaft is realized.

[0034] (3) The ramming device for anti-cracking of filled soil foundation plant floor of the application, through the setting of the second pressing block, when the first pressing block is pressed down, the connecting rod is first clamped into the corresponding avoiding groove, so that the bottom surfaces of the two pressing blocks can be flush with each other; then under the driving of the first pressing block, the two pressing blocks jointly ram the foundation; such design not only effectively increases the ramming area, but also is beneficial to the ramming operation at the corner. At the same time, through the setting of the reset spring, when the first pressing block rises, the second pressing block can be automatically reset.

[0035] (4) The ramming device for anti-cracking of filled soil foundation plant floor of the application, through the setting of the discharging mechanism, the second discharge port is blocked by the blocking plate on the first pressing block to control the discharging of the filled soil in the material box, so that the continuous feeding and ramming can be realized, and the ramming efficiency can be effectively improved.

[0036] (5) The ramming device for anti-cracking of filled soil foundation plant floor of the application, through the setting of the material dredging rod, and the material dredging rod is connected with the first guide rod through the connecting piece; during the up and down movement of the first pressing block, the material dredging rod can be driven to move up and down through the connecting piece, and then the filled soil in the material box can be dredged to ensure the smoothness of the discharging and prevent blockage. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a structure schematic view of the ramming device for anti-cracking of filled soil foundation plant floor of the application;

[0038] Figure 2 It is a structure schematic view of the ramming mechanism in the application;

[0039] Figure 3 It is a linkage schematic view between the connecting rod and the rotating shaft in the application;

[0040] Figure 4It is a structural schematic view of the driving assembly in the application;

[0041] Figure 5 It is a structural schematic view of the driving assembly in the application; Figure 2 It is a local enlarged schematic view at A in the application;

[0042] Figure 6 It is a structural schematic view of the support block in the application;

[0043] Figure 7 It is a structural schematic view of the discharging mechanism in the application;

[0044] Figure 8 It is a cooperation schematic view of the rammer device for preventing floor cracks in a filling foundation factory and the crawler vehicle in the application.

[0045] In the figure: 1, moving mechanism; 11, guide rail frame; 12, rotating shaft; 13, roller;

[0046] 2, ramming mechanism; 21, support block; 211, second discharging port; 22, cross plate; 23, connecting block; 24, first guide rod; 241, connecting column; 25, first pressing block; 251, avoiding groove; 252, blocking plate; 26, connecting rod; 261, waist-shaped hole; 262, sleeve ring;

[0047] 27, driving assembly; 271, crankshaft; 272, driving source; 273, rotating rod; 274, sliding rod; 275, first protruding block; 276, second protruding block;

[0048] 281, second pressing block; 282, connecting rod; 283, reset spring; 284, second guide rod; 29, one-way bearing;

[0049] 3, discharging mechanism; 31, material box; 311, first discharging port; 32, connecting piece; 33, material loosening rod; 34, guide part;

[0050] 4, crawler vehicle. DETAILED DESCRIPTION

[0051] In order to further understand the content of the application, the application will be described in detail in combination with the drawings.

[0052] In the description of the application, it should be noted that the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0053] The application will be further described in connection with specific embodiments.

[0054] As Figure 1 shown in the figure, the ramming device for foundation floor crack resistance of the filling ground factory building of the embodiment comprises a moving mechanism 1 and a ramming mechanism 2; wherein the ramming mechanism 2 is used for ramming operation on the foundation, and the moving mechanism 1 is used for driving the ramming mechanism 2 to move, so as to ensure that the moving speed and direction of the ramming mechanism 2 can be accurately controlled, thereby ensuring the final ramming quality.

[0055] Specifically, the moving mechanism 1 comprises a set of guide rail frames 11 arranged oppositely, and two rotating shafts 12 are arranged in parallel between the two guide rail frames 11. The end of the rotating shaft 12 is provided with a roller 13, and the guide rail frame 11 is provided with a rolling way for the roller 13 to roll along the length direction thereof. The ramming mechanism 2 is connected with the moving mechanism 1 through the rotating shaft 12, and moves synchronously with the rotating shaft 12.

[0056] As Figure 2 shown in the figure, the ramming mechanism 2 comprises two support blocks 21 arranged oppositely, and the opposite sides of the two support blocks 21 are connected through a cross plate 22. Meanwhile, the opposite sides of the two support blocks 21 are each provided with a connecting block 23. The rotating shaft 12 penetrates through the connecting block 23 and is rotatably connected with the connecting block 23, so that the rotating shaft 12 can drive the support block 21 to move synchronously while moving forward by rotating.

[0057] A first pressing block 25 is arranged between the two support blocks 21, and the first pressing block 25 is connected with a driving assembly 27 for driving the first pressing block 25 to move up and down reciprocally to ram the foundation. The first pressing block 25 is located below the cross plate 22 and is slidably connected with the cross plate 22 through a first guide rod 24, so as to guide the movement of the first pressing block 25.

[0058] Meanwhile, the first guide rod 24 is further connected with a transmission assembly, and the transmission assembly is used for driving the rotating shaft 12 to rotate unidirectionally, so that the first guide rod 24 can drive the rotating shaft 12 to move along the length direction of the guide rail frame 11 in the rising process.

[0059] As Figure 3 shown in the figure, the transmission assembly comprises a connecting rod 26 and a one-way bearing 29. Wherein, the side wall of one end of the connecting rod 26 is provided with a waist-shaped hole 261, and the other end is provided with a sleeve ring 262. The one-way bearing 29 is sleeved on the rotating shaft 12, and the sleeve ring 262 is sleeved on the one-way bearing 29. Meanwhile, the first guide rod 24 is provided with a connecting column 241 matched with the waist-shaped hole 261.

[0060] In the embodiment, the first pressing block 25 is driven by the driving assembly 27 to move up and down, and then drives the first guide rod 24 to move up and down synchronously. In the process of moving up and down, the first guide rod 24 drives the sleeve ring 262 to rotate through the cooperation of the connecting column 241 and the waist-shaped hole 261. At the same time, due to the existence of the one-way bearing 29, when the first guide rod 24 moves down, the rotating shaft 12 does not rotate, thereby ensuring the stability of the first pressing block 25 when it presses and tamps. When the first guide rod 24 moves up, it drives the rotating shaft 12 to rotate, and then drives the rollers 13 at both ends of the rotating shaft 12 to roll on the guide rail frame 11, and finally drives the whole tamping mechanism 2 to move forward.

[0061] As shown in Figure 4 , as a specific embodiment of the driving assembly 27, it includes a crankshaft 271 and a driving source 272 for driving the crankshaft 271 to rotate. The driving source 272 can be a motor, which is arranged on one of the support blocks 21. One end of the crankshaft 271 is rotatably arranged on the other support block 21, and the other end is connected with the output shaft of the motor. The crankshaft 271 is hinged with a sliding rod 274 through a rotating rod 273, and the end of the sliding rod 274 penetrates the horizontal plate 22 and is connected with the first pressing block 25.

[0062] Further, the end of the crankshaft 271 close to the motor is fixedly provided with a second protrusion 276, and the outer wall of the output end of the motor is fixedly provided with a first protrusion 275 for cooperating with the second protrusion 276. The motor can drive the first protrusion 275 to rotate when it is started, and the rotation of the first protrusion 275 can drive the crankshaft 271 to rotate through the second protrusion 276. When the rotating rod 273 is inclined, it can freely sag under the action of the first pressing block 25, so that it can imitate artificial ramming.

[0063] In the embodiment, the crankshaft 271 can be driven to rotate by starting the motor, and the sliding rod 274 can be driven to move up and down by the rotating rod 273 in the process of rotating the crankshaft 271, and the first pressing block 25 can be driven to move up and down by the sliding rod 274, so that it can tamp the foundation. Of course, the driving assembly 27 in the embodiment can also adopt the existing technology, that is, the structure in the existing technology which can drive the first pressing block 25 to move up and down reciprocatingly can be applied to the embodiment.

[0064] As shown in Figure 2 , Figure 5 , as another embodiment of the tamping mechanism 2, the tamping mechanism 2 further includes second pressing blocks 281 located at the bottom of the support blocks 21, and the two second pressing blocks 281 are connected by a connecting rod 282. The bottom of the first pressing block 25 is provided with an avoiding slot 251 for the connecting rod 282 to be clamped into, so that the bottom of the first pressing block 25 is flush with the bottom of the second pressing block 281 after the first pressing block 25 is pressed down, to jointly tamp the foundation.

[0065] Meanwhile, the top of the second pressing block 281 is provided with a second guide rod 284, the free end of which penetrates through the connecting block 23 and is connected in a slidable manner. A return spring 283 is sleeved on the second guide rod 284, which is located below the connecting block 23.

[0066] In this embodiment, when the first pressing block 25 moves downward, the two second pressing blocks 281 on the sides can be driven to move downward by the connecting rod 282; at this time, since the connecting rod 282 can be clamped into the corresponding avoiding slot 251, the end portions of the first pressing block 25 and the second pressing block 281 can be close to each other, and the bottoms are flush. That is, at this time, the first pressing block 25 and the second pressing block 281 can be combined into a large pressing block, so as to effectively increase the tamping area. At the same time, the size of the second pressing block 281 is adjusted to ensure that the second pressing block 281 can effectively tamp the corner of the foundation. When the first pressing block 25 moves upward, the second pressing block 281 can be reset upward under the driving of the return spring 283, so as to prepare for the next tamping.

[0067] Reference Figure 1 As shown in the figure, as a preferred embodiment of the tamping device, a discharging mechanism 3 for discharging and filling operation is further arranged above the tamping mechanism 2.

[0068] Specifically, referring to Figure 5 , Figure 6 , Figure 7 As shown in the figure, the discharging mechanism 3 includes a material box 31 arranged on the top of the supporting block 21. The supporting block 21 is in a hollow structure, and the cavity inside forms a material passage. The material box 31 is connected in communication with the material passage of the supporting block 21 through the first discharging port 311 at the bottom thereof.

[0069] Meanwhile, the inner side wall of the supporting block 21 close to the bottom is provided with a second discharging port 211, that is, the second discharging ports 211 on the two supporting blocks 21 are arranged in opposition. The top of the first pressing block 25 is provided with a plugging plate 252, which can plug the second discharging port 211 when the first pressing block 25 moves downward, so as to facilitate the control of discharging.

[0070] Further, in order to ensure the smoothness of the discharging operation and prevent blockage, in this embodiment, a guide portion 34 is arranged at the first discharging port 311 and the second discharging port 211. Meanwhile, a material dredging rod 33 is arranged in the material box 31, which is used for dredging and discharging the filling material in the material box 31.

[0071] The guide part 34 can be arc-shaped or inclined. In this embodiment, the guide part 34 at the first discharge port 311 is an arc-shaped transition surface extending from the inner wall of the support block 21 to the lower end of the first discharge port 311. The second discharge port 211 is provided with two guide parts 34, one on each side of the second discharge port 211. The guide parts 34 are inclined planes, and the top of the two guide parts 34 in the middle abut each other to form a triangular shape.

[0072] The material dispersing rod 33 is arranged at one end of the connecting piece 32, and a plurality of material dispersing rods 33 can be arranged along the length direction of the connecting piece 32. The other end of the material dispersing rod 33 extends into the material channel of the support block 21 through the first discharge port 311. The connecting piece 32 is connected with the first guide rod 24 and moves up and down synchronously with the first guide rod 24, so as to disperse and discharge the fill in the material box 31. Preferably, the material dispersing rod 33 comprises a rod body and a plurality of balls arranged along the axial direction of the rod body. The balls can effectively improve the dispersing efficiency of the fill.

[0073] In this embodiment, when the first pressing block 25 moves upward, the blocking plate 252 is driven away from the second discharge port 211 through the arrangement of the discharging mechanism 3. At this time, the fill in the material box 31 falls into the foundation pit through the first discharge port 311 and the second discharge port 211, and the filling operation is completed. When the first pressing block 25 moves downward to compact the foundation, the blocking plate 252 is driven to move downward to block the second discharge port 211. At this time, the fill does not fall into the foundation pit. In addition, during the upward and downward movement of the first pressing block 25, the first guide rod 24 and the connecting piece 32 drive the material dispersing rod 33 to move up and down, so as to disperse the fill in the material box 31 and prevent blockage.

[0074] Reference Figure 8 The compacting device of this embodiment is also connected with a tracked vehicle 4, which is provided with an excavator and a mechanical arm. The excavator can add fill to the material box 31, and the mechanical arm can move the entire compacting device into the foundation pit, which is more intelligent and automated.

[0075] The construction method of the filling foundation plant floor anti-cracking compacting device of this embodiment comprises the following steps:

[0076] First, place the entire compacting device on the foundation pit, and make the foundation pit below the compacting mechanism 2. Then, pour the fill into the material box 31, and the fill will enter the material channel of the support block 21 through the first discharge port 311.

[0077] Then the motor is started, the motor can drive the first protruding block 275 to rotate, when the first protruding block 275 contacts the second protruding block 276, it will drive the crankshaft 271 to rotate; when the crankshaft 271 rotates, through the transmission of the rotating rod 273 and the sliding rod 274, it will drive the first pressing block 25 to move downward; at this time, the blocking plate 252 will block the second discharge port 211; at the same time, the second pressing block 281 is driven by the connecting rod 282 to move downward, and together with the first pressing block 25, it compacts the foundation.

[0078] With the continuous rotation of the crankshaft 271, the first pressing block 25 can be driven to move upward, the upward movement of the first pressing block 25 can drive the blocking plate 252 to move away from the second discharge port 211; and the second pressing block 281 can be reset upward under the action of the reset spring 283; at this time, the fill will fall into the foundation pit, realizing the compaction and feeding at the same time.

[0079] At the same time, the first pressing block 25 can drive the first guide rod 24 to move up and down, the movement of the first guide rod 24 can drive the connecting rod 26 to rotate through the cooperation of the connecting column 241 and the waist-shaped hole 261; the rotation of the connecting rod 26 can drive the sleeve ring 262 to rotate, the sleeve ring 262 can drive the rotating shaft 12 to rotate through the one-way bearing 29 in the process of rotation, so as to drive the roller 13 to roll in the guide rail frame 11, drive the device to move in the foundation pit, and feed at the same time. Similarly, the first pressing block 25 can drive the material dredging rod 33 to move through the connecting piece 32 in the process of lifting and lowering, and the material dredging rod 33 can dredge the material in the material box 31 and the material channel in the process of moving up and down.

[0080] When a row of compaction is completed, the position of the first pressing block 25 and the second pressing block 281 can be adjusted by adjusting the position of the connecting block 23 on the rotating shaft 12, and then the compaction is carried out in turn.

[0081] The above describes the present application and its embodiments in a schematic way, which is not restrictive, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, similar structure and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. A compaction device for crack prevention of factory floor slabs in filled soil foundations, characterized in that: Including, mobile mechanism (1), The mobile mechanism (1) includes a set of guide rail frames (11) arranged oppositely, and two rotating shafts (12) arranged between the guide rail frames (11); And ramming mechanism (2), The ramming mechanism (2) includes two support blocks (21) arranged oppositely and a cross plate (22) connecting the two support blocks (21); wherein the support block (21) is provided with a connecting block (23) rotatably connected with the rotating shaft (12); The cross plate (22) is connected with a first pressing block (25) through a first guide rod (24), and the first guide rod (24) is connected with the rotating shaft (12) through a connecting rod (26); the first pressing block (25) reciprocates under the driving of a driving assembly (27) to compact the foundation; at the same time, the first guide rod (24) drives the rotating shaft (12) to rotate unidirectionally through the connecting rod (26), so that the rotating shaft (12) can move along the length direction of the guide rail frame (11); The first guide rod (24) is provided with a connecting column (241), the connecting rod (26) is provided with a waist-shaped hole (261) for the connecting column (241) to slide, and the connecting rod (26) is connected with the rotating shaft (12) through a one-way bearing (29), so that the first guide rod (24) can drive the rotating shaft (12) to rotate during the rising process; The bottom of the support block (21) is provided with a second pressing block (281), and the two second pressing blocks (281) are connected through a connecting rod (282); the bottom of the first pressing block (25) is provided with a avoiding slot (251) for the connecting rod (282) to be inserted, so that the bottom of the first pressing block (25) is flush with the bottom of the second pressing block (281) after being pressed down, to compact the foundation together; the second pressing block (281) is connected with a return spring (283); The ramming device further includes a discharging mechanism (3), the discharging mechanism (3) includes a material box (31) arranged on the support block (21), the material box (31) is communicated with the inner cavity of the support block (21) through the first discharge port (311) at the bottom thereof, and the support block (21) is provided with a second discharge port (211); the first pressing block (25) is connected with a blocking plate (252), which blocks the second discharge port (211) when the first pressing block (25) moves downward.

2. The ramming device for preventing cracks in the ground foundation plant ground according to claim 1, characterized in that: The one-way bearing (29) is sleeved on the rotating shaft (12), and the connecting rod (26) is sleeved on the one-way bearing (29) through the sleeve ring (262) at the end thereof; the guide rail frame (11) is provided with a roller (13) connected with the end of the rotating shaft (12).

3. The ramming device for preventing cracks in the ground foundation plant ground according to claim 2, characterized in that: The driving assembly (27) includes a crankshaft (271) and a driving source (272) driving the crankshaft (271) to rotate; wherein the crankshaft (271) is connected with a sliding rod (274) through a rotating rod (273), and the end of the sliding rod (274) is connected with the first pressing block (25) after penetrating through the cross plate (22).

4. The ramming device for preventing cracks in the ground foundation plant ground according to claim 3, characterized in that: The driving source (272) is a motor, and an output shaft of the motor is externally provided with a first protrusion (275) matched with a second protrusion (276) at an end of the crankshaft (271).

5. The ramming device for preventing cracks in the ground foundation plant ground floor according to claim 1, characterized in that: The second pressing block (281) is slidably connected with the connecting block (23) through a second guide rod (284), and a reset spring (283) is sleeved on the second guide rod (284) and located below the connecting block (23).

6. The ramming device for preventing cracks in the ground foundation plant ground floor according to claim 5, characterized in that: The material box (31) is internally provided with a material dredging rod (33) connected with the first guide rod (24) through a connecting piece (32) and synchronously moved up and down with the first guide rod (24) to dredge and discharge the filled soil in the material box (31).

7. The method for ground compaction by using the ground compaction device for preventing cracks in the ground floor of a factory building according to claim 6, wherein: The method comprises the following steps: The tamping device is placed on the corresponding foundation pit, and the material box (31) is filled with soil; The driving source (272) of the tamping mechanism (2) is started to drive the first pressing block (25) to reciprocate up and down to tamp the foundation; During the upward movement of the first pressing block (25), the first guide rod (24) and the connecting rod (26) are driven to rotate the rotating shaft (12), so that the tamping mechanism (2) is driven to move along the length direction of the guide rail frame (11), and the tamping and moving are realized simultaneously; Meanwhile, during the reciprocating movement of the first pressing block (25) up and down, the filled soil in the material box (31) falls into the corresponding foundation pit, and the tamping and filling are realized simultaneously.

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