A treatment device for water-containing rock and soil in foundation pit

Abstract

The present invention discloses a treatment device for water-containing rock and soil in foundation pits, and relates to the technical field of water-containing rock and soil treatment, including at least two spiral shafts, which are rotatably arranged in a frame, and the two spiral shafts are arranged side by side on the same horizontal plane; at least two connecting shafts are arranged in the frame, and are symmetrically arranged about the axis of the spiral shaft; a plurality of fixed rings, and the fixed rings are provided with first perforations arranged up and down, which are respectively sleeved on the corresponding connecting shafts. In the present invention, the convex blocks can squeeze the fixed rings to change the gap, adapt to different particle treatment requirements, and especially can effectively crush larger particle impurities such as stones, avoid clogging the device, and achieve particle refinement. The coordinated work of multiple spiral shafts improves the treatment efficiency and stability, and ensures that the water-containing rock and soil can be continuously drawn into the treatment area for treatment. The present invention can effectively treat the water-containing rock and soil, and can effectively avoid the situation where the stone blocks the device during the treatment process.

Description

Technical Field

[0001] The invention relates to the technical field of water-containing rock and soil treatment, and in particular to a treatment device for water-containing rock and soil in a foundation pit. Background Art

[0002] In the field of construction engineering, especially in projects involving foundation pit construction, the treatment of water-containing rock and soil is a crucial and extremely challenging link. At present, a large amount of waste soil and waste slurry with high water content generated by construction projects are basically excavated in sedimentation tanks or piled up and dried in the open space at the construction site. After part of the water evaporates, they are transported to the waste soil site or the suburbs by tank trucks or earthmoving trucks for disposal. However, the evaporation rate of water through piling and drying is slow and is affected by weather and air humidity; the soil after piling and drying still contains a large amount of free water, which directly increases the transportation cost; during transportation, the water in the soil will leak from the transport vehicle, polluting the environment.

[0003] For this reason, the existing solution is to dig out the water-containing rock and soil with an excavator and place it on a filter net for filtration and then compress and dehydrate it again, and finally obtain a mud cake for secondary use;

[0004] For example, an existing Chinese patent (publication number: CN101898863B) discloses an easy-to-maintain spiral stack sludge dewatering machine, including a machine base, a spiral shaft with spiral blades, a motor driving the spiral shaft to rotate, and a filter set stacked on the outer periphery of the spiral shaft, wherein the filter set is composed of a plurality of fan-shaped annular stators and moving plates arranged crosswise and spaced in the axial direction, and the fan-shaped annular stators and moving plates are respectively passed through the corresponding support shafts and make the stators in the same axial longitudinal section symmetrical and the stators in the same axial longitudinal section form a circular ring. The characteristics of the present invention are that it is easy to process and install, generates less waste, has a lower manufacturing cost, and can be quickly and conveniently replaced without disassembling the spiral shaft after the moving filter is damaged, making maintenance more convenient;

[0005] During use of the above-mentioned dewatering equipment, the spiral drive shaft rotates to drive the moving plate to rotate, so that the fan-shaped annular stator and the moving plate in the equipment cooperate to dehydrate the cement-containing soil. In order to avoid the equipment being blocked by stones before use, the soil needs to be filtered before dehydration. However, even if the existing filter net can filter the stones, in actual use, there will still be some smaller stones wrapped in the soil, passing through the filter net and entering the compression dewatering equipment. As the soil is continuously compressed, more stones continuously enter the dewatering equipment. At this time, the stones pile up more and more, and more stones may scratch the extrusion plate or block the extrusion channel, resulting in a significant shortening of the service life of the equipment. Summary of the invention

[0006] The object of the present invention is to provide a device for treating water-containing rock and soil in a foundation pit to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the present invention provides a treatment device for water-containing rock and soil in a foundation pit, comprising a frame, including:

[0008] At least two spiral shafts are rotatably arranged in the frame, and the two spiral shafts are arranged side by side on the same horizontal plane; at least two connecting shafts are arranged in the frame, and are symmetrically arranged about the axis of the spiral shaft;

[0009] A plurality of fixed rings, each of which is provided with first through-holes arranged up and down, and is respectively sleeved on the corresponding connecting shafts, and there is a gap between the first through-holes and the connecting shafts. The connecting shafts are also sleeved with a plurality of gaskets, which are sequentially arranged on one side of the corresponding fixed rings and are used to limit the deflection of the fixed rings to the side of the corresponding gaskets;

[0010] Multiple moving rings, each moving ring is arranged between two fixed rings, the moving ring is sleeved on the spiral shaft, a protrusion is arranged on the moving ring, and the automatic ring extends outward from the side away from the corresponding gasket, and is used for squeezing one of the fixed rings to deflect when the moving ring rotates with the spiral shaft and the protrusion extends between the two fixed rings on the opposite side.

[0011] Furthermore, the rotation area of ​​the moving ring partially overlaps with the areas opposite to the two fixed rings.

[0012] Further, the gap between the first through hole located on the upper side and the connecting shaft is larger than the gap between the first through hole located on the lower side and the connecting shaft.

[0013] Furthermore, the protrusion is in a strip shape, and the inner ring of the automatic ring extends toward the outer ring.

[0014] Furthermore, the projection has a cutting portion, the thickness of which gradually decreases from the inner ring to the outer ring of the dynamic ring.

[0015] Furthermore, at least one mounting shaft is arranged in the frame, the movable ring is connected with a second through hole, the second through hole is sleeved on the mounting shaft, and the aperture of the second through hole is larger than the diameter of the mounting shaft, so as to ensure that the movable ring can rotate when the spiral shaft rotates.

[0016] Furthermore, an arc-shaped opening is provided on the gasket to form a repositionable elastic sheet.

[0017] Furthermore, a pressing portion is provided on a side of the elastic sheet facing the corresponding fixed ring and extends outwardly from a side wall of the elastic sheet.

[0018] Furthermore, a synchronous drive assembly is included, including:

[0019] The servo motor is connected to one side of the frame to drive the spiral shaft to rotate. The driving end of the servo motor is connected to a driving gear. One side of the driving gear is meshed with a transmission gear. The other side of the transmission gear is meshed with a driven gear. The driven gear is coaxially connected to another spiral shaft.

[0020] Furthermore, it also includes an opening and closing range adjustment component, including,

[0021] A lifting block is rotatably arranged on the protruding block, and as the lifting block rotates clockwise, the thickness of the end of the cutting portion gradually increases;

[0022] A push slider is slidably arranged on the convex block, a connecting cavity for installing the push slider is provided in the convex block, and a connecting port for passing the push slider is provided on one side of the convex block;

[0023] The driving bolt is threadedly connected to the protrusion, and the other end of the driving bolt is rotatably connected to the pushing sliding block.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The spiral shaft drives the moving ring and the convex block to operate, so that the moving ring and the fixed ring can cooperate ingeniously, and can accurately stir, squeeze and grind the water-bearing rock and soil. The convex block can squeeze the fixed ring to change the gap to meet the needs of different particle processing, especially it can effectively crush larger particle impurities such as stones, avoid clogging the device and achieve particle refinement. The coordinated work of multiple spiral shafts improves the processing efficiency and stability, ensuring that the water-bearing rock and soil can be continuously drawn into the processing area for processing. This setting can effectively process the water-bearing rock and soil, and can effectively avoid the situation of stone clogging the device during the processing process.

[0026] 2. When the convex block squeezes the fixed ring, the fixed ring can flexibly change its position, thereby adjusting the gap between the moving ring and the fixed ring and between adjacent fixed rings, adapting to the processing needs of rock and soil particles of different sizes, and improving processing efficiency and accuracy. The elastic restoring force of the elastic sheet can ensure that the fixed ring is quickly reset after completing an extrusion action, preparing for the next interaction, so that the equipment can operate continuously and stably, reducing the jamming or failure caused by the fixed ring position offset and unable to reset, extending the service life of the equipment and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a first side view of the present invention;

[0029] Figure 3 is a second side view of the present invention;

[0030] Figure 4It is a schematic diagram of the connection structure between the moving ring and the fixed ring in the present invention;

[0031] Figure 5 It is a schematic diagram of the installation structure of the spiral shaft and the connecting rod in the invention;

[0032] Figure 6 It is a schematic diagram of the connection structure between the mounting rod and the limiting collar in the present invention;

[0033] Figure 7 It is a schematic diagram of the connection structure between the moving ring and the protrusion in the present invention;

[0034] Figure 8 It is a schematic diagram of the connection structure between the lifting block and the protruding block in the present invention;

[0035] Fig. 9 It is a schematic diagram of the connection structure between the elastic sheet and the gasket in the present invention;

[0036] Fig.10 For the present invention Figure 4 A magnified view of the structure at center.

[0037] In the figure: 1. frame; 2. screw shaft; 301. fixed ring; 302. gasket; 303. moving ring; 304. arc opening; 305. protrusion; 306. mounting ring; 307. elastic sheet; 4. connecting shaft; 501. mounting shaft; 502. limiting ring; 601. servo motor; 602. driving gear; 603. transmission gear; 604. driven gear; 701. lifting block; 702. pushing slider; 703. driving bolt; 8. box body. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-10 , the present invention provides a technical solution:

[0040] In the field of construction engineering, especially in projects involving foundation pit construction, a certain amount of water-containing rock and soil may be produced for treatment. The existing treatment method often uses an excavator to dig out the water-containing rock and soil and place it on a filter net for filtration and then compress and dehydrate it again, and finally obtain a mud cake for secondary utilization. However, even if the existing filter net can filter the stones, in actual use, there will still be some smaller stones wrapped in the soil, pass through the filter net and enter the compression and dehydration equipment. As the soil is continuously compressed, more stones continuously enter the dehydration equipment. At this time, the stones are piled up more and more, and more stones may scratch the extrusion plate or block the extrusion channel, resulting in a significant shortening of the service life of the equipment. For this reason, the accumulated stones are treated.

[0041] A device for treating water-containing rock and soil in a foundation pit, comprising a frame 1, including:

[0042] At least two spiral shafts 2 are rotatably arranged in the frame 1, and the two spiral shafts 2 are arranged side by side on the same horizontal plane; at least two connecting shafts 4 are arranged in the frame 1, and are symmetrically arranged about the axis of the spiral shaft 2;

[0043] A plurality of fixed rings 301 are provided with first through holes arranged up and down, which are respectively sleeved on the corresponding connecting shafts 4, and there is a gap between the first through holes and the connecting shafts 4. The connecting shafts 4 are also sleeved with a plurality of gaskets 302, which are sequentially arranged on one side of the corresponding fixed rings 301, and are used to limit the deflection of the fixed rings 301 to the side of the corresponding gaskets 302;

[0044] A plurality of movable rings 303 are provided, each movable ring 303 is arranged between two fixed rings 301, the movable ring 303 is sleeved on the screw shaft 2, a protrusion 305 is provided on the movable ring 303, and the automatic ring 303 extends outward from one side of the corresponding gasket 302, and is used for the protrusion 305 to extend into between the two fixed rings 301 on the opposite side to squeeze one of the fixed rings 301 to deflect when the movable ring 303 rotates with the screw shaft 2.

[0045] Preferably, the connecting shaft 4 can be fixed in the frame 1 by welding or threaded connection, which is the prior art and will not be described in detail here.

[0046] During actual use, the pitch of the spiral shaft 2 gradually decreases from the sludge inlet end to the outlet end, and the gap between the fixed ring 301 and the moving ring 303 also gradually decreases. A back pressure plate is also provided at the outlet end of the sludge to further squeeze the sludge. Since it is irrelevant to the technical problem to be solved by the present invention, it is not drawn. When the spiral driving shaft 2 rotates, water is filtered out from the gap between the relatively moving laminations under the action of gravity to achieve rapid concentration; the concentrated sludge continues to move forward with the rotation of the spiral shaft 2; along the mud cake outlet direction, the volume of the spiral cavity continues to shrink, and under the action of the back pressure plate at the outlet, the internal pressure gradually increases, and under the continuous operation of the spiral shaft 2, the water in the sludge is squeezed out. This is the prior art, so no further explanation and description are given here.

[0047] Specifically, a box 8 is provided on one side of the frame 1 for storing water-bearing rock and soil excavated by the excavator. An inclined filter screen can also be provided in the box 8 for filtering large particles of stone to prevent large particles of stone from entering the frame 1.

[0048] Preferably, a mounting collar 306 is connected to the fixed ring 301 , and the first through hole is formed on the mounting collar 306 .

[0049] In the specific implementation, first, the device is started, and the screw shaft 2 starts to rotate in the frame 1. Since the moving ring 303 is sleeved on the screw shaft 2, the moving ring 303 will make corresponding circular motion as the screw shaft 2 rotates. During the rotation of the screw shaft 2, the protrusion 305 on the moving ring 303 moves with the moving ring 303. When the protrusion 305 moves to a certain position, it will extend between the two fixed rings 301 on the opposite side. Because the protrusion 305 and the driven ring 303 extend outward away from the side of the corresponding gasket 302, the protrusion 305 will contact one of the fixed rings 301 and exert an extrusion force on it. The fixed ring 301 is sleeved on the connecting shaft 4 through the first through-hole thereon, and there is a gap between the first through-hole and the connecting shaft 4, which enables the fixed ring 301 to move within a certain range when subjected to the extrusion force of the protrusion 305. A plurality of gaskets 302 are arranged in sequence on the connecting shaft 4. These gaskets 302 are located on one side of the corresponding fixed ring 301, and their function is to limit the fixed ring 301 to deflect only to the side where the gasket 302 is located. With the continuous rotation of the spiral shaft 2 and the continuous movement of the moving ring 303 and the protrusion 305, the relative position between the moving ring 303 and the fixed ring 301 is constantly changing. When the protrusion 305 on the moving ring 303 squeezes the fixed ring 301, the fixed ring 301 will overcome a certain resistance of the gasket 302 and deflect to the side of the gasket 302, thereby changing the gap size between the moving ring 303 and the fixed ring 301 and between adjacent fixed rings 301. At the same time, at least two spiral shafts 2 arranged side by side on the same horizontal plane work together to drive the respectively connected moving ring 303 and the fixed ring 301 system to operate. Under the rotation and propulsion of the spiral shaft 2, the water-containing rock and soil are continuously drawn into the processing area composed of the moving ring 303 and the fixed ring 301. With the continuous rotation of the spiral shaft 2, the extrusion, deflection and other actions between the moving ring 303 and the fixed ring 301 are continuously repeated, and the water-containing rock and soil are subjected to processing operations such as stirring, extrusion and grinding. For larger particle impurities such as stones in the water-containing rock and soil, they can be effectively ground and crushed under the interaction of the moving ring 303 and the fixed ring 301, so that the particles of the stones are further reduced, thereby avoiding clogging in the device.

[0050] See also Fig. 9 The rotation area of ​​the moving ring 303 partially overlaps with the areas opposite to the two fixed rings 301.

[0051] In specific implementation, after the device is started, the spiral shaft 2 starts to rotate, driving the moving ring 303 to rotate. Since the rotation area of ​​the moving ring 303 partially overlaps with the areas opposite to the two fixed rings 301, this setting enables the interaction between the moving ring 303 and the fixed ring 301. When the moving ring 303 rotates continuously under the drive of the spiral shaft 2, it gradually approaches the part that overlaps with the area opposite to the fixed ring 301.

[0052] See also Fig. 9, the gap between the first through hole on the upper side and the connecting shaft 4 is larger than the gap between the first through hole on the lower side and the connecting shaft 4.

[0053] In specific implementation, since the gap between the first through hole on the upper side and the connecting shaft 4 is larger than the gap between the first through hole on the lower side and the connecting shaft 4, when the protrusion 305 on the moving ring 303 gradually approaches the opposite fixed ring 301 and finally extends between the two fixed rings 301, the protrusion 305 contacts one of the fixed rings 301 and applies an extrusion force.

[0054] The fixed ring 301 begins to deflect after being subjected to the squeezing force. Due to the difference in the gaps between the upper and lower sides, the deflection of the fixed ring 301 can be guided so that the fixed ring 301 can only deflect in an eight-shaped manner, thereby facilitating the squeezing of water-bearing rock and soil. When subjected to the squeezing force of the protrusion 305, the relatively small gap between the lower side of the fixed ring 301 and the connecting shaft 4 provides a certain support and guiding effect, making the fixed ring 301 more stable during the deflection process, while the larger gap on the upper side of the fixed ring 301 provides a movable space for the deflection of the fixed ring 301.

[0055] See also Figure 7 and Figure 8 The protrusion 305 is in a strip shape, and the inner ring of the automatic ring 303 extends toward the outer ring.

[0056] Preferably, the protrusion 305 can also be set to be curved. When the protrusion 305 is curved, the contact area will change dynamically as the movable ring 303 rotates and contacts the fixed ring 301. Compared with the straight protrusion 305, the curved protrusion 305 can gradually contact the fixed ring 301 within a certain period of time, rather than instantaneous point contact or line contact, so that the extrusion force can be more evenly applied to the fixed ring 301.

[0057] In specific implementation, the design of the protrusion 305 being strip-shaped and extending from the inner ring to the outer ring increases the contact area between the protrusion 305 and the fixed ring 301. During the rotation of the moving ring 303, when the protrusion 305 is close to the fixed ring 301, the larger contact area can make the force applied by the protrusion 305 to the fixed ring 301 more evenly distributed on the fixed ring 301, so that the deflection of the fixed ring 301 is more stable and controllable.

[0058] See also Figure 8 The protrusion 305 has a cutting portion, and its thickness gradually decreases from the inner ring to the outer ring of the dynamic ring 303.

[0059] In specific implementation, the thickness of the cutting portion of the projection 305 gradually decreases from the inner ring to the outer ring of the moving ring 303. During the rotation of the moving ring 303, the projection 305 needs to continuously extend between the two fixed rings 301 on the opposite side to squeeze one of the fixed rings 301 and achieve deflection. The cutting portion with gradually decreasing thickness can better adapt to this mode of movement. When the projection 305 extends between the fixed rings 301, the thinner outer ring portion can more easily perform cutting and pushing operations in a small space, reducing the friction resistance between the fixed ring 301 and avoiding jamming or damage due to excessive friction.

[0060] See also Figures 7 to 10 At least one mounting shaft 501 is provided in the frame 1, and a second through hole is connected to the movable ring 303. The second through hole is sleeved on the mounting shaft 501. The aperture of the second through hole is larger than the diameter of the mounting shaft 501, so as to ensure that the movable ring 303 can rotate when the spiral shaft 2 rotates.

[0061] Specifically, the installation shaft 501 can be fixedly connected in the frame 1 by welding or threaded connection.

[0062] Preferably, the movable ring 303 is connected to a limiting collar 502 , and the second through hole is provided in the limiting collar 502 .

[0063] In specific implementation, when the spiral shaft 2 drives the moving ring 303 to rotate, due to the limiting effect of the installation shaft 501 and the gap between the second through hole and the installation shaft 501, the moving ring 303 cannot be displaced arbitrarily, but can only perform regular rotational motion around the spiral shaft 2 and the installation shaft 501.

[0064] See also Fig. 9 The gasket 302 is provided with an arc-shaped opening 304 to form a repositionable elastic sheet 307 .

[0065] During specific implementation, the elastic sheet 307 can assist the fixed ring 301 to return to the initial position.

[0066] See also Fig. 9 A pressing portion is provided on one side of the elastic sheet 307 facing the corresponding fixed ring 301 and extends outward from the side wall of the elastic sheet 307 .

[0067] Preferably, a vertically arranged guide groove is provided on the fixed ring 301, and the extrusion portion is slidably matched with the guide groove.

[0068] In a specific implementation, this arrangement facilitates the fixed ring 301 to squeeze the elastic sheet 307 when deflected.

[0069] See also Figure 2 , also includes a synchronous drive assembly, including,

[0070] The servo motor 601 is connected to one side of the frame 1 to drive the screw shaft 2 to rotate. The driving end of the servo motor 601 is connected to a driving gear 602. One side of the driving gear 602 is meshed with a transmission gear 603. The other side of the transmission gear 603 is meshed with a driven gear 604. The driven gear 604 is coaxially connected to another screw shaft 2.

[0071] In specific implementation, starting the servo motor 601 can drive one of the spiral shafts 2 to rotate while also driving the driving gear 602 to rotate, and then the driving gear 602 can drive the transmission gear 603 to rotate, and then the transmission gear 603 can drive the other spiral shaft 2 to rotate through the driven gear 604, so that the two spiral shafts 2 can rotate synchronously.

[0072] See also Figure 8 , also includes an opening and closing range adjustment component, including,

[0073] The lifting block 701 is rotatably disposed on the protrusion 305. As the lifting block 701 rotates clockwise, the thickness of the end of the cutting portion gradually increases;

[0074] The push slider 702 is slidably disposed on the protrusion 305. A connection cavity for installing the push slider 702 is provided in the protrusion 305. A connection port for passing the push slider 702 is provided on one side of the protrusion 305.

[0075] The driving bolt 703 is threadedly connected to the protrusion 305 , and the other end of the driving bolt 703 is rotatably connected to the pushing slider 702 .

[0076] In specific implementation, when adjustment is required, by rotating the driving bolt 703, the driving bolt 703 will move relatively in the axial direction while rotating. With the pushing action of the driving bolt 703, the push slider 702 will slide in a specific direction in the connecting cavity, and the sliding of the push slider 702 will directly act on the lifting block 701. The lifting block 701 is rotatably set on the protrusion 305. When the push slider 702 approaches and contacts it, the push slider 702 will push the lifting block 701 to rotate. As the lifting block 701 rotates clockwise, the thickness of the end of the cutting part gradually increases. In this way, the purpose of accurately adjusting the thickness of the end of the cutting part by operating the driving bolt 703 is achieved. When processing water-bearing rock and soil of foundation pits of different properties, the opening and closing range of the cutting part can be flexibly adjusted according to actual needs to achieve the best processing effect.

[0077] Preferably, a transition portion is provided on the lifting block 701, and the end of the transition portion is smoothly transitioned to the surface of the protrusion 305; when the thickness of the end of the cutting portion changes due to the action of the lifting block 701, the smooth transition between the transition portion and the surface of the protrusion 305 can reduce the resistance encountered when passing through this area.

[0078] Working principle: First, turn on the servo motor 601, and the driving end of the servo motor 601 drives the driving gear 602 to rotate. The driving gear 602 is meshed with the transmission gear 603, thereby driving the transmission gear 603 to rotate. The transmission gear 603 then meshes with the driven gear 604 to rotate the driven gear 604, and the driven gear 604 is coaxially connected to the other spiral shaft 2, so that the two spiral shafts 2 can rotate synchronously in the frame 1;

[0079] As the screw shaft 2 rotates, the movable ring 303 starts to rotate along with the screw shaft 2 because the movable ring 303 is sleeved on the screw shaft 2. At the same time, the second through hole on the movable ring 303 is sleeved on the mounting shaft 501, and the aperture of the second through hole is larger than the diameter of the mounting shaft 501, so that the movable ring 303 can stably rotate within a certain range under the joint action of the screw shaft 2 and the mounting shaft 501;

[0080] The protrusion 305 on the moving ring 303 extends outward from the side of the moving ring 303 away from the corresponding gasket 302. As the moving ring 303 continues to rotate, the protrusion 305 gradually extends between the two fixed rings 301 on the opposite side and applies a squeezing force to one of the fixed rings 301;

[0081] Under the squeezing force of the protrusion 305, the fixed ring 301 overcomes the resistance of the gasket 302 and deflects to the side of the corresponding gasket 302. When the fixed ring 301 deflects, the squeezing part of the elastic sheet 307 can provide a certain elastic restoring force, so that the fixed ring 301 can automatically return to a certain extent after being squeezed by the protrusion 305;

[0082] As the spiral shaft 2 continues to rotate, the extrusion, deflection and other actions between the moving ring 303 and the fixed ring 301 are continuously repeated, and the water-bearing rock and soil are subjected to processing operations such as stirring, extrusion and grinding. The larger particle impurities such as stones in the water-bearing rock and soil can be effectively ground and crushed under the interaction between the moving ring 303 and the fixed ring 301, so that the particles of the stones are further reduced, thereby avoiding clogging in the device.

Claims

1. A device for treating water-bearing rock and soil in a foundation pit, comprising a frame (1), characterized in that: include, At least two spiral shafts (2) are rotatably arranged in the frame (1), and the two spiral shafts (2) are arranged side by side on the same horizontal plane; at least two connecting shafts (4) are arranged in the frame (1) and are symmetrically arranged about the axis of the spiral shafts (2); A plurality of fixed rings (301), each of which is provided with first through-holes arranged in an upper and lower manner and respectively sleeved on a corresponding connecting shaft (4), with a gap between the first through-holes and the connecting shaft (4); and a plurality of gaskets (302) sleeved on the connecting shaft (4) and arranged in sequence on one side of the corresponding fixed ring, for limiting the deflection of the fixed ring (301) towards the side of the corresponding gasket (302); A plurality of movable rings (303), each movable ring (303) being arranged between two fixed rings (301), the movable ring (303) being sleeved on the spiral shaft (2), a convex block (305) being arranged on the movable ring (303), and the movable ring (303) extending outwardly from a side of the corresponding gasket (302), so that when the movable ring (303) rotates along with the spiral shaft (2), the convex block (305) extends into between the two fixed rings (301) on the opposite side to squeeze one of the fixed rings (301) to deflect.

2. A device for treating water-containing rock and soil in a foundation pit according to claim 1, characterized in that: The rotation area of ​​the moving ring (303) partially overlaps with the areas opposite to the two fixed rings (301).

3. The device for treating water-containing rock and soil in a foundation pit according to claim 1, characterized in that: The gap between the first through hole located on the upper side and the connecting shaft (4) is larger than the gap between the first through hole located on the lower side and the connecting shaft (4).

4. The device for treating water-containing rock and soil in a foundation pit according to claim 1, characterized in that: The protrusion (305) is in the shape of a strip, and the inner ring of the automatic ring (303) extends toward the outer ring.

5. A device for treating water-containing rock and soil in a foundation pit as claimed in claim 4, characterized in that: The protrusion (305) has a cutting portion, the thickness of which gradually decreases from the inner ring to the outer ring of the moving ring (303).

6. The device for treating water-containing rock and soil in a foundation pit according to claim 1, characterized in that: At least one mounting shaft (501) is arranged in the frame (1), and the movable ring (303) is connected with a second through hole, which is sleeved on the mounting shaft (501), and the aperture of the second through hole is larger than the diameter of the mounting shaft (501), so as to ensure that the movable ring (303) can rotate when the spiral shaft (2) rotates.

7. The device for treating water-containing rock and soil in a foundation pit according to claim 1, characterized in that: An arc-shaped opening (304) is provided on the gasket (302) to form a repositionable elastic sheet (307).

8. The device for treating water-containing rock and soil in a foundation pit according to claim 7, characterized in that: A pressing portion is provided on one side of the elastic sheet (307) facing the corresponding fixed ring (301), and extends outwards from the side wall of the elastic sheet (307).

9. A device for treating water-containing rock and soil in a foundation pit according to any one of claims 5 to 8, characterized in that: Also included is a synchronous drive assembly, including, A servo motor (601) is connected to one side of the frame (1) to drive the screw shaft (2) to rotate. The driving end of the servo motor (601) is connected to a driving gear (602). One side of the driving gear (602) is meshedly connected to a transmission gear (603). The other side of the transmission gear (603) is meshedly connected to a driven gear (604). The driven gear (604) is coaxially connected to another screw shaft (2).

10. The device for treating water-containing rock and soil in a foundation pit according to claim 5, characterized in that: Also included is an opening and closing range adjustment assembly, including, A lifting block (701) is rotatably disposed on the protruding block (305), and as the lifting block (701) rotates clockwise, the thickness of the end of the cutting portion gradually increases; A push slider (702) is slidably disposed on the protrusion (305); a connection cavity for installing the push slider (702) is provided in the protrusion (305); and a connection port for the push slider (702) to pass through is provided on one side of the protrusion (305); The driving bolt (703) is threadedly connected to the protrusion (305), and the other end of the driving bolt (703) is rotatably connected to the pushing slider (702).

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