A stirring device for soft foundation treatment

Abstract

The present invention relates to the technical field of soft soil foundation treatment, and particularly relates to a stirring device for soft foundation treatment, including a stirring tank. A spline shaft is rotatably connected through the inner side wall of the stirring tank. A plurality of stirring plates are fixedly connected through the side wall of the spline shaft. A flow channel is formed in the inner wall of the spline shaft. A mating groove communicating with the flow channel is formed in the inner wall of each stirring plate. A plurality of slurry spraying nozzles communicating with the mating groove are embedded and installed on the side wall of the stirring plate. A motor is installed on the inner side wall of the stirring tank. The output end of the motor is fixedly connected with a worm. A worm gear is rotatably connected through a round shaft on the inner side wall of the stirring tank. One end of the round shaft is fixedly connected with a cross bar. The other end of the cross bar is rotatably connected with a push rod through a round pin. In the present invention, the cement mortar is continuously injected into the hole grooves formed by the extrusion of the extrusion column. Under the combined action of the hard layer formed by the solidification of the cement support pile and the silt, the effect of soft foundation solidification treatment can be significantly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of soft soil foundation treatment, and particularly relates to a stirring device for soft foundation treatment. Background Art

[0002] Currently, when carrying out construction projects on some silt soft foundations, due to the high water content, large compressibility, and low bearing capacity of the silt foundation, it brings great inconvenience and potential safety hazards to the construction. Therefore, it is necessary to solidify such soft foundations. Through physical, chemical, or biological methods, the physical and chemical properties of the silt are changed, so that it changes from a loose and flowing state to a solid material with a certain strength and stability.

[0003] Currently, the treatment method for such soft foundations is often to mix the solidified mud with the silt through mechanical stirring to make the silt form a firm shape. During the construction process, a mixer is often used to press the stirring blades into the silt and forcibly mix the solidified mud with the surrounding silt to form a mud-solidified body. A series of physical and chemical reactions occur between the cement and the soil, hardening the silt soft foundation and improving the foundation strength. However, there are also some defects. For example, the stirring blades of the mixer cannot conveniently stir the silt soft foundation at different depths, and the position where the solidified mud is sprayed is fixed, resulting in a limited mixing range of the solidified mud and the silt soft foundation, and no support piles are synchronously arranged at the bottom of the silt layer to improve the effect of soft foundation treatment. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and a stirring device for soft foundation treatment is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A stirring device for soft foundation treatment, including a stirring box. A spline shaft is rotatably connected through the inner side wall of the stirring box. A plurality of stirring plates are fixedly connected through the side wall of the spline shaft. A circulation groove is opened in the inner wall of the spline shaft. A matching groove communicating with the circulation groove is opened in the inner wall of each stirring plate. A plurality of slurry spraying nozzles communicating with the matching groove are embedded and installed on the side wall of the stirring plate. A motor is installed on the inner side wall of the stirring box. The output end of the motor is fixedly connected with a worm. A worm gear is rotatably connected through the inner side wall of the stirring box by a round shaft. One end of the round shaft is fixedly connected with a cross bar. The other end of the cross bar is rotatably connected with a push rod through a round pin. A matching gear is rotatably connected through the inner side wall of the stirring box by a cylinder. A matching rod is fixedly connected to the side wall of the cylinder. The other end of the matching rod is rotatably connected with the push rod. A plurality of annular teeth are fixedly connected to the side wall of the spline shaft;

[0007] A support mechanism for improving the effect of soft foundation treatment is provided inside the stirring box.

[0008] Preferably, the support mechanism includes a sliding plate slidably connected to the inner wall of the mixing tank. A chute is provided on the side wall of the sliding plate. An L-shaped plate is slidably connected inside the chute. A limiting block is fixedly connected to the side wall of the L-shaped plate. A support block is fixedly connected to the side wall of the sliding plate. A wedge-shaped block is fixedly connected to the side wall of the support block. A sliding column is slidably connected through the inner wall of the support block. One end of the sliding column is fixedly connected to the L-shaped plate. One end of the L-shaped plate is fixedly connected to a return spring. The other end of the return spring is fixedly connected to the inner wall of the support block.

[0009] Preferably, the support mechanism further includes a round rod rotatably connected to the inner side wall of the mixing tank with a limit. A wedge-shaped plate is fixedly connected to the side wall of the round rod. A right-angled trapezoidal block is fixedly connected to the side wall of the wedge-shaped plate. One end of the L-shaped plate penetrates through the inner wall of the mixing tank and is fixedly connected to an extrusion column. A circular cavity is provided through the inner wall of the extrusion column.

[0010] Preferably, a plurality of one-way discharge holes communicating with the circular cavity are provided on one side wall of the extrusion column. A groove is provided on the side wall of the sliding plate. A plurality of magnetic springs are fixedly connected to the inner wall of the groove. The other ends of the magnetic springs are fixedly connected to a rack together.

[0011] Preferably, the rack slides against the inner side wall of the groove, and the rack is meshed with a mating gear.

[0012] Preferably, a torsion spring is sleeved and fixedly connected to the side wall of the round rod. The other end of the torsion spring is fixedly connected to the inner side wall of the mixing tank.

[0013] Preferably, the right-angled trapezoidal block slides against the side wall of the L-shaped plate. After the right-angled trapezoidal block slides a certain distance, it abuts against the limiting block.

[0014] Preferably, the bottom end of the extrusion column is in a frustum-shaped structure. A feeding pipe is fixedly installed through the top end of the extrusion column. The feeding pipe penetrates through the L-shaped plate. The feeding pipe is fixedly connected and communicated with an external cement pump.

[0015] Preferably, a rotary joint is fixedly installed at one end of the spline shaft away from the plurality of stirring plates. The other end of the rotary joint is fixedly connected and communicated with an external spraying pipe. A first gear is fixedly connected to the side wall of the worm. A support plate is fixedly connected to the inner side wall of the mixing tank. A second gear is rotatably connected to the side wall of the support plate. The spline shaft is keyed to the second gear. The second gear is meshed with the first gear.

[0016] Preferably, a connecting frame is fixedly connected to the top wall of the mixing tank. The worm is meshed with the worm gear. The mating gear is meshed with a plurality of annular teeth.

[0017] Compared with the prior art, the advantages of the present invention are as follows:

[0018] 1. The external solidified slurry will enter the flow groove of the spline shaft through the rotary joint, flow into the multiple mating grooves, and finally be ejected from the slurry spraying nozzles installed on the side walls of the multiple stirring plates to combine with the silt in the soft foundation. By setting structures such as a worm gear, mating gears, and annular teeth, when the mating gears rotate forward and backward, the spline shaft is driven to reciprocate axially through the multiple annular teeth. Then, the spline shaft will drive the multiple stirring plates fixedly connected to its side wall to reciprocate synchronously. Furthermore, the multiple stirring plates will stir at different depths in the soft foundation silt, thereby improving the solidification efficiency of the soft foundation silt.

[0019] 2. In the above process, by setting structures such as a first gear, a second gear, and a spline shaft, during the reciprocating movement of the spline shaft along its axis, the second gear always drives the spline shaft to rotate. Then, the spline shaft drives the multiple stirring plates to stir in the soft foundation silt, and the stirring plates in the process of stirring will drive the multiple slurry spraying nozzles to rotate synchronously, so that the slurry spraying nozzles eject the solidified slurry during rotation, increasing the contact range between the solidified slurry and the soft foundation silt.

[0020] 3. In the above process, when the cylinder rotates clockwise, the extrusion column can be inserted into the soil at the bottom of the soft foundation silt layer through structures such as mating gears, racks, and sliding plates. Then, the extrusion column will continue to be inserted to extrude this part of the soil, so that the soil forms a compact structure under the action of pressure to increase its strength until the L-shaped plate no longer drives the extrusion column to move, and the return spring will be compressed and contracted. When the wedge block and the wedge plate are in contact, the right-angled trapezoidal block will be separated from the limiting block. Then, under the action of the elastic potential energy of the return spring, the L-shaped plate will drive the extrusion column to move quickly for a certain distance to impact and compact this part of the soil, facilitating the subsequent formed cement pile to have sufficient support strength.

[0021] 4. When the mating gears rotate in the reverse direction, at this time the sliding plate will also slide a certain distance in the reverse direction. During the reverse movement of the L-shaped plate, it will drive the extrusion column to move synchronously in the reverse direction. At this time, the cement mortar is continuously injected into the feeding pipe through an external cement pump. These cement mortars will enter the hole grooves formed by the extrusion of the extrusion column through the circular cavity and the one-way discharge holes, and then solidify to form a cement support pile. Then, under the combined action of the cement support pile and the hard layer formed by the solidification of the silt, the effect of soft foundation solidification treatment can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a stirring device for soft foundation treatment proposed by the present invention;

[0023] Figure 2 is Figure 1 an enlarged schematic diagram of part A structure in

[0024] Figure 3Schematic diagram of the positional relationship between the flow channel and the mating groove in a stirring device for soft foundation treatment proposed by the present invention;

[0025] Figure 4 Schematic diagram of the positional relationship between structures such as the limit block, right-angled trapezoidal block, and wedge plate in a stirring device for soft foundation treatment proposed by the present invention;

[0026] Figure 5 Schematic diagram of the state when the return spring is compressed and the wedge plate is about to rotate in a stirring device for soft foundation treatment proposed by the present invention;

[0027] Figure 6 Schematic diagram of the state when the limit block moves to the position below the right-angled trapezoidal block in a stirring device for soft foundation treatment proposed by the present invention;

[0028] Figure 7 Schematic diagram of the internal structure of the groove in a stirring device for soft foundation treatment proposed by the present invention;

[0029] Figure 8 Schematic diagram of the connection relationship between structures such as the cross bar, push rod, and mating rod in a stirring device for soft foundation treatment proposed by the present invention.

[0030] In the figure: 1. Stirring tank; 2. Connecting frame; 3. Spline shaft; 4. Annular tooth; 5. Stirring plate; 6. Groove; 7. Magnetic spring; 8. Rack; 9. Feeding pipe; 12. Worm; 13. Round shaft; 14. Worm gear; 15. Round pin; 16. Push rod; 17. Mating rod; 18. Cylinder; 19. Mating gear; 20. Motor; 21. Mating groove; 22. Spray head; 23. Cross bar; 24. Flow channel; 25. Second gear; 26. Slide plate; 27. Slide groove; 28. Support block; 29. Slide post; 30. Return spring; 31. L-shaped plate; 32. Limit block; 33. Wedge block; 34. Round rod; 35. Torsion spring; 36. Wedge plate; 37. Right-angled trapezoidal block; 38. Extrusion column; 39. One-way discharge hole; 40. First gear; 41. Rotary joint; 42. Round cavity; 43. Support plate. Detailed implementation method

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Refer to Figure 1 - Figure 8, A stirring device for soft foundation treatment, including a stirring tank 1. The inner side wall of the stirring tank 1 is rotatably connected through a spline shaft 3. A flow channel 24 is provided in the inner wall of the spline shaft 3. A plurality of stirring plates 5 are fixedly connected through the side wall of the spline shaft 3 outside the stirring tank 1. Each inner wall of the stirring plates 5 is provided with a matching groove 21 communicating with the flow channel 24 (refer to the attached Figure 3 ), and a plurality of slurry spraying nozzles 22 communicating with the matching groove 21 are embedded and installed on the side wall of the stirring plates 5. An electric motor 20 is installed on the inner side wall of the stirring tank 1. The output end of the electric motor 20 is fixedly connected with a worm 12. A round shaft 13 is rotatably connected to the inner side wall of the stirring tank 1. A worm gear 14 is fixedly connected to the side wall of the round shaft 13 (refer to the attached Figure 2 ), One end side wall of the round shaft 13 is fixedly connected with a cross bar 23. The other end of the cross bar 23 is rotatably connected with a push rod 16 through a round pin 15. A cylinder 18 is rotatably connected to the inner side wall of the stirring tank 1. A matching gear 19 is fixedly connected to the side wall of the cylinder 18. A matching rod 17 is fixedly connected to the side wall of the cylinder 18. The other end of the matching rod 17 is rotatably connected with the push rod 16. A plurality of annular teeth 4 are fixedly connected to the side wall of the spline shaft 3;

[0033] A support mechanism for improving the soft foundation treatment effect is provided inside the stirring tank 1.

[0034] The support mechanism includes a sliding plate 26 slidably connected to the inner wall of the stirring tank 1. A sliding groove 27 is provided on the side wall of the sliding plate 26. An L-shaped plate 31 is slidably connected inside the sliding groove 27. The L-shaped plate 31 extends outside the stirring tank 1 after passing through the inner wall of the stirring tank 1. A limiting block 32 is fixedly connected to the side wall of the L-shaped plate 31 inside the stirring tank 1. A support block 28 is fixedly connected to the side wall of the sliding plate 26. A wedge-shaped block 33 is fixedly connected to the side wall of the support block 28. A sliding column 29 is slidably connected through the inner wall of the support block 28. One end of the sliding column 29 is fixedly connected with the L-shaped plate 31. One end of the L-shaped plate 31 is fixedly connected with a return spring 30. The other end of the return spring 30 is fixedly connected with the inner wall of the support block 28. The return spring 30 is sleeved on the side wall of the sliding column 29.

[0035] The support mechanism further includes a round rod 34 rotatably connected to the inner side wall of the stirring tank 1 with limited rotation. The round rod 34 can only rotate within a certain angle range. A wedge-shaped plate 36 is fixedly connected to the side wall of the round rod 34 (refer to the attached Figure 4 ), A right-angled trapezoidal block 37 is fixedly connected to the side wall of the wedge-shaped plate 36. One end of the L-shaped plate 31 passes through the inner wall of the stirring tank 1 and is fixedly connected with an extrusion column 38. A circular cavity 42 is provided through the inner wall of the extrusion column 38.

[0036] A plurality of one-way discharge holes 39 communicating with the circular cavity 42 are provided on one end side wall of the extrusion column 38. The one-way discharge holes 39 are realized with one-way functions by built-in one-way valves.

[0037] The side wall of the skateboard 26 is provided with a groove 6, and a plurality of magnetic springs 7 are fixedly connected to the inner wall of the groove 6. The magnetic springs 7 are prior art. After the magnetic springs 7 are energized, due to electromagnetic induction, the magnetic springs 7 interact with the current in the external magnetic field to generate tensile forces of different magnitudes to control the stretching deformation and motion state of the magnetic springs 7, that is, the magnetic springs 7 can contract a certain distance after being energized. The other ends of the magnetic springs 7 are commonly fixedly connected with a rack 8, and the rack 8 abuts and slides against the inner side wall of the groove 6. When the magnetic springs 7 are not energized, the rack 8 is meshed and connected with the mating gear 19. When it is not necessary to squeeze the column 38 to move downward continuously, the magnetic springs 7 are energized, and the magnetic springs 7 will contract a certain distance, then the rack 8 will be disengaged from the mating gear 19.

[0038] A torsion spring 35 is sleeved and fixedly connected to the side wall of the round rod 34, and the other end of the torsion spring 35 is fixedly connected to the inner side wall of the mixing tank 1.

[0039] The right-angled trapezoidal block 37 abuts and slides against the side wall of the L-shaped plate 31, and after sliding a certain distance, the right-angled trapezoidal block 37 abuts and contacts the limit block 32.

[0040] The bottom end of the extrusion column 38 is of a frustum-shaped structure, and a feeding pipe 9 is fixedly penetrated through the top end of the extrusion column 38. The feeding pipe 9 penetrates through the L-shaped plate 31, and the feeding pipe 9 is fixedly communicated with an external cement pump.

[0041] One end of the spline shaft 3 far away from the plurality of stirring plates 5 is fixedly installed with a rotary joint 41. The rotary joint 41 is prior art and can enable the spline shaft 3 to rotate relative to an external spraying pipe without interference. The specific principle is not elaborated here. The other end of the rotary joint 41 is fixedly communicated with an external spraying pipe. A first gear 40 is fixedly connected to the side wall of the worm 12. A support plate 43 is fixedly connected to the inner side wall of the mixing tank 1. A second gear 25 is rotatably connected to the side wall of the support plate 43. The side wall of the second gear 25 is provided with an annular protruding portion, and an annular groove is opened on the side wall of the support plate 43. The annular protruding portion of the second gear 25 is fitted and slid in the annular groove to realize the free rotation of the second gear 25 on the side wall of the support plate 43. A spline groove matched with the spline shaft 3 is opened at the axis of the second gear 25. The spline shaft 3 is key-connected with the second gear 25, and a through hole through which the spline shaft 3 can penetrate and rotate is opened on the support plate 43. The spline shaft 3 freely penetrates through the through hole of the support plate 43. Since the second gear 25 is rotatably connected to the bottom side wall of the support plate 43 and the spline shaft 3 penetrates through the support plate 43 and is key-connected with the second gear 25, the second gear 25 can drive the spline shaft 3 to rotate synchronously after rotation, and the second gear 25 is always meshed and connected with the first gear 40.

[0042] A connecting frame 2 is fixedly connected to the top wall of the mixing tank 1. The worm 12 is meshed and connected with the worm gear 14. The mating gear 19 is meshed and connected with a plurality of annular teeth 4.

[0043] In the present invention, the external traction device is fixedly connected to the connecting frame 2 on the mixing tank 1, thereby driving the mixing tank 1 to perform slurry spraying and mixing at different positions in the soft silt foundation to achieve the purpose of soft foundation solidification treatment.

[0044] Since the other end of the rotary joint 41 is fixedly communicated with the external slurry spraying pipe, the external solidifying slurry will enter the internal flow channel 24 of the spline shaft 3 through the rotary joint 41 and flow into a plurality of mating grooves 21, and finally be sprayed out from the slurry spraying nozzles 22 installed on the side walls of the plurality of mixing plates 5 to combine with the silt in the soft foundation. During the above process, the motor 20 is started. The output end of the motor 20 drives the worm 12 fixedly connected thereto to rotate. The worm 12 drives the worm gear 14 meshingly connected thereto to rotate. The worm gear 14 drives the round shaft 13 to rotate. The round shaft 13 drives the cross bar 23 fixedly connected thereto to rotate. The cross bar 23 drives the push rod 16 to move through the round pin 15, so that the push rod 16 drives the mating rod 17 rotatably connected thereto to rotate forward and backward by a certain angle with the cylinder 18 as the center. Then the cylinder 18 will drive the mating gear 19 to rotate forward and backward synchronously. Since the mating gear 19 is meshingly connected with a plurality of annular teeth 4, the mating gear 19 will drive the spline shaft 3 to perform reciprocating motion along its axial direction during the forward and backward rotation process. Then the spline shaft 3 will drive a plurality of mixing plates 5 fixedly connected to its side wall to perform synchronous reciprocating motion. Furthermore, the plurality of mixing plates 5 will stir at different depths in the soft silt foundation, thereby improving the solidification efficiency of the soft silt foundation.

[0045] The worm 12 will also drive the first gear 40 fixedly connected to its side wall to rotate. The first gear 40 drives the second gear 25 meshingly connected thereto to rotate. The second gear 25 drives the spline shaft 3 to rotate. The shaft body part of the spline shaft 3 is provided with a spline part, and the spline part is always key-connected to the second gear 25. Then, during the reciprocating motion of the spline shaft 3 along its axial direction, the second gear 25 always drives the spline shaft 3 to rotate. Furthermore, the spline shaft 3 drives a plurality of mixing plates 5 to stir in the soft silt foundation, and the stirring mixing plates 5 will drive a plurality of slurry spraying nozzles 22 to rotate synchronously, so that the slurry spraying nozzles 22 spray the solidifying slurry during the rotation process, increasing the contact range between the solidifying slurry and the soft silt foundation.

[0046] Moreover, when the cylinder 18 rotates clockwise, at this time, the cylinder 18 will drive the rack 8 meshingly connected thereto through the mating gear 19 to move. The rack 8 drives the sliding plate 26 to slide a certain distance inside the mixing tank 1. Then the sliding plate 26 will first drive the L-shaped plate 31 to move synchronously a certain distance through the support block 28 and the return spring 30 (such as Figure 4As shown in the figure, the L-shaped plate 31 drives the extrusion column 38 fixedly connected thereto to insert into the soil at the bottom of the soft foundation silt layer. Then, the extrusion column 38 will continue to insert and extrude the soil in this part, so that the soil forms a compact structure under the pressure to improve the strength until the limiting block 32 fixedly connected to the L-shaped plate 31 abuts against the right-angled trapezoidal block 37. Subsequently, under the abutting action of the limiting block 32 and the right-angled trapezoidal block 37, at this time, the L-shaped plate 31 will no longer drive the extrusion column 38 to move, while the sliding plate 26 will, under the action of the mating gear 19 and the rack 8, cause the return spring 30 to be squeezed and contracted and continue to move a certain distance until the wedge-shaped block 33 fixed on the sliding plate 26 through the support block 28 abuts against the wedge-shaped plate 36 (as Figure 5 shown in the figure). Under the action of the wedge-shaped block 33, the wedge-shaped plate 36 rotates a certain angle around the round rod 34. Then, the right-angled trapezoidal block 37 will be separated from the abutting state with the limiting block 32. Then, under the elastic potential energy of the return spring 30, the L-shaped plate 31 will drive the extrusion column 38 to move quickly for a certain distance to impact and compact the soil in this part, which is convenient for the subsequent formed cement pile to have sufficient support strength.

[0047] When the mating gear 19 rotates in the reverse direction, at this time, the sliding plate 26 will also slide a certain distance in the reverse direction and drive the L-shaped plate 31 to move synchronously in the reverse direction through the return spring 30 and the sliding column 29. At this time, the wedge-shaped plate 36 abuts and slides against the limiting block 32 until the inclined surface of the right-angled trapezoidal block 37 abuts against the limiting block 32 (as Figure 6 shown in the figure). At this time, the wedge-shaped plate 36 will rotate a certain angle in the reverse direction. During the reverse movement of the L-shaped plate 31, it will drive the extrusion column 38 to move synchronously in the reverse direction. At this time, the cement mortar is continuously injected into the feeding pipe 9 through an external cement pump. These cement mortars will enter the hole grooves formed by the extrusion of the extrusion column 38 through the circular cavity 42 and the one-way discharge hole 39, and then solidify to form a cement support pile. Then, under the combined action of the cement support pile and the hard layer formed by the solidification of the silt, the effect of soft foundation solidification treatment can be significantly improved.

[0048] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A stirring device for soft base treatment, comprising a stirring box, characterized in that: The inner side wall of the mixing box passes through a spline shaft for rotation connection, the side wall of the spline shaft passes through a plurality of mixing plates for fixed connection, the inner wall of the spline shaft is provided with a circulation groove, the inner wall of each mixing plate is provided with a matching groove connected to the circulation groove, the side wall of the mixing plate is embedded with a plurality of spray heads connected to the matching groove, the inner side wall of the mixing box is provided with a motor, the output end of the motor is fixedly connected to a worm, the inner side wall of the mixing box is rotatably connected to a worm gear through a circular shaft, one end of the circular shaft is fixedly connected to a cross bar, the other end of the cross bar is rotatably connected to a push rod through a round pin, the inner side wall of the mixing box is rotatably connected to a matching gear through a cylinder, the side wall of the cylinder is fixedly connected to a matching rod, the other end of the matching rod is rotatably connected to the push rod, and the side wall of the spline shaft is fixedly connected to a plurality of annular teeth; The mixing box is provided with a supporting mechanism inside to improve the soft foundation treatment effect; The support mechanism comprises a slide plate slidably connected to the inner wall of the mixing box, the side wall of the slide plate is provided with a slide groove, an L-shaped plate is slidably connected inside the slide groove, the side wall of the L-shaped plate is fixedly connected to a limiting block, the side wall of the slide plate is fixedly connected to a support block, the side wall of the support block is fixedly connected to a wedge-shaped block, a slide column is slidably connected through the inner wall of the support block, one end of the slide column is fixedly connected to the L-shaped plate, one end of the L-shaped plate is fixedly connected to a return spring, and the other end of the return spring is fixedly connected to the inner wall of the support block; The support mechanism also includes a round rod that is limitedly rotatably connected to the inner wall of the mixing box, the side wall of the round rod is fixedly connected to a wedge-shaped plate, the side wall of the wedge-shaped plate is fixedly connected to a right-angled trapezoidal block, one end of the L-shaped plate passes through the inner wall of the mixing box and is fixedly connected to an extrusion column, and the inner wall of the extrusion column is penetrated and opened with a circular cavity; The side wall of one end of the extrusion column is provided with a plurality of one-way discharge holes connected with the circular cavity, the side wall of the slide plate is provided with a groove, the inner wall of the groove is fixedly connected with a plurality of magnetic springs, and the other ends of the magnetic springs are fixedly connected with a rack; The side wall of the round rod is sleeved with a torsion spring fixedly connected, and the other end of the torsion spring is fixedly connected to the inner wall of the mixing box; The right-angled trapezoidal block and the side wall of the L-shaped plate slide against each other, and the right-angled trapezoidal block contacts the limit block after sliding for a certain distance; A rotating joint is fixedly installed at one end of the spline shaft away from the multiple stirring plates, and the other end of the rotating joint is fixedly connected to the external spraying pipe. The side wall of the worm is fixedly connected to a first gear, the inner side wall of the mixing box is fixedly connected to a support plate, the side wall of the support plate is rotatably connected to a second gear, the spline shaft is keyed to the second gear, and the second gear is meshed with the first gear; The solidified slurry from the outside will enter the flow groove of the spline shaft through the rotating joint and flow into multiple matching grooves, and finally be sprayed out from the spraying heads installed on the side walls of multiple mixing plates to combine with the silt in the soft foundation. The cement pump from the outside will continuously inject cement mortar into the feeding pipe. These cement mortars will enter the hole groove formed by the extrusion column through the circular cavity and the one-way discharge hole, and then solidify to form cement support piles; The bottom end of the extrusion column is in a truncated cone structure, and a feeding pipe is fixedly passed through the top end of the extrusion column. The feeding pipe passes through the L-shaped plate, and the feeding pipe is fixedly connected to an external cement pump.

2. A stirring device for soft foundation treatment according to claim 1, characterized in that: The rack and the inner wall of the groove slide against each other, and the rack and the matching gear are meshed and connected.

3. A stirring device for soft foundation treatment according to claim 1, characterized in that: The top wall of the mixing box is fixedly connected with a connecting frame, the worm and the worm wheel are meshingly connected, and the matching gear and a plurality of annular teeth are meshingly connected.

Images