Construction device for controlling differential settlement of foundation of water-rich wide and large foundation pit

Abstract

The invention belongs to the technical field of building construction, and particularly discloses a construction device for controlling foundation differential settlement of a water-rich wide and large foundation pit, which comprises a high-speed pulping machine tank body, the top of the high-speed pulping machine tank body is fixedly connected with a speed reducer, and the top of the speed reducer is provided with a caking crushing mechanism. The caking crushing mechanism is used for crushing caked pulping materials, a motor is arranged at the top of the caking crushing mechanism, a hopper is fixedly connected to the top of the high-speed pulping machine tank and facilitates material adding, and an air pressure supplementing mechanism is arranged outside the hopper. The air pressure supplementing mechanism is used for increasing the air pressure in the high-speed pulping machine tank body. By means of the caking crushing mechanism, when pulping materials are poured into the hopper, caking can be crushed through the moving crushing plate, and therefore the materials do not need to be sieved before pulping, the number of devices is reduced while the working procedures are reduced, the pulping efficiency is improved, and meanwhile the pulping cost can be reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building construction, and specifically discloses a construction device for controlling foundation differential settlement of a water-rich wide foundation pit. BACKGROUND

[0002] The water-rich wide foundation pit is a common complex foundation pit type in engineering construction, "water-rich" refers to high water content and rich underground water of the stratum where the foundation pit is located, and problems such as seepage and piping are prone to occur; "wide" refers to a large excavation area, a length or width exceeding 100 meters, and an excavation depth of 10-30 meters. Its construction needs to overcome the difficulties of anti-seepage, slope stability, foundation differential settlement control, and is often applied to subway stations, large venues, underground pipe galleries and other projects, with extremely high requirements for supporting systems, dewatering systems and monitoring technologies.

[0003] The construction of controlling foundation differential settlement of a water-rich wide foundation pit is a key construction technology for ensuring the safety of the project by reducing the difference in the settlement amount of each part of the foundation after excavation, avoiding structural cracking and deformation, and ensuring the uniformity and stability of the foundation through supporting and reinforcing, grouting and improving the foundation, and dynamic dewatering. The device for the construction of controlling foundation differential settlement of a water-rich wide foundation pit is various, and the high-speed pulper is one of the devices for the construction of controlling foundation differential settlement of a water-rich wide foundation pit. The key to controlling foundation differential settlement of a water-rich wide foundation pit lies in ensuring the uniformity and stability of the foundation through various technical means, and grouting reinforcement is one of the commonly used methods. As a key equipment for slurry preparation in grouting engineering, the high-speed pulper can quickly prepare uniform and sufficient slurry from water, cement and additives, and realize the processing of building materials. The high-quality slurry prepared by the high-speed pulper can be injected into the foundation through grouting equipment, effectively filling the pores of the foundation and improving the strength and density of the foundation soil, thereby reducing the foundation differential settlement.

[0004] The high-speed pulper for the construction of controlling foundation differential settlement of a water-rich wide foundation pit in the prior art generally does not have a structure for crushing agglomerated materials, which leads to the need to sieve the materials before adding them to the high-speed pulper, and the agglomerated materials need to be crushed, which not only increases the process and reduces the pulping efficiency, but also increases the equipment and the cost of pulping. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a construction device for controlling foundation differential settlement of a water-rich wide foundation pit to solve the problem that the high-speed pulper for the construction of controlling foundation differential settlement of a water-rich wide foundation pit in the prior art does not have a structure for crushing agglomerated materials, which leads to the need to sieve the materials, which not only reduces the pulping efficiency, but also increases the cost of pulping.

[0006] In order to achieve the above object, the application provides a construction device for controlling foundation differential settlement of a water-rich wide foundation pit, which comprises a high-speed pulping machine tank body, a speed reducer is fixedly connected to the top of the high-speed pulping machine tank body, a lump crushing mechanism is arranged on the top of the speed reducer, the lump crushing mechanism is used for crushing lumpy pulping materials, a motor is arranged on the top of the lump crushing mechanism, a hopper is fixedly connected to the top of the high-speed pulping machine tank body, the hopper facilitates the addition of materials, an air pressure supplementing mechanism is arranged outside the hopper, the air pressure supplementing mechanism is used for increasing the air pressure inside the high-speed pulping machine tank body, an air pressure maintaining mechanism is arranged on the top of the hopper, the air pressure maintaining mechanism is used for preventing the high-speed pulping machine tank body from leaking air when the air pressure of the high-speed pulping machine tank body is increased, and a power transmission shaft is fixedly connected to the output end of the motor.

[0007] In the above technical scheme, preferably, the lump crushing mechanism comprises a mounting cylinder, rotating rods are rotatably connected to the two sides of the mounting cylinder, two driving bevel gears are fixedly connected to the external top end of the power transmission shaft, a driven bevel gear is fixedly connected to the side of the rotating rod close to the power transmission shaft, the driving bevel gear on the upper side is in meshing connection with one of the driven bevel gears, the driving bevel gear on the lower side is in meshing connection with the other driven bevel gear, a rotating arm is fixedly connected to the side of the rotating rod away from the driven bevel gear, a crushing plate is slidably connected to the inside of the hopper, a folding rod is rotatably connected to the inside of the rotating arm, the folding rod is fixedly connected to the outside of the crushing plate on the side away from the rotating arm, a leakage plate is fixedly connected to the inside of the hopper, and the folding rod is slidably connected to the side of the hopper away from the motor.

[0008] In the above technical scheme, preferably, the air pressure supplementing mechanism comprises two fixed cylinders, the two fixed cylinders are fixedly connected to the two ends outside the hopper respectively, a communication air pipe is fixedly connected to the lower side of the fixed cylinder, a connecting air pipe is fixedly connected between the two communication air pipes, a communication pipe is fixedly connected to the middle of the connecting air pipe, a moving plug plate is fixedly connected to the outside of the folding rod, a gas tank is fixedly connected to the outside of the high-speed pulping machine tank body, an automatic valve is fixedly connected to the top of the gas tank, a gas inlet pipe is fixedly connected to the top of the gas tank, the end of the gas inlet pipe away from the automatic valve is fixedly connected to the top of the high-speed pulping machine tank body, a one-way valve is fixedly connected to the two ends of the fixed cylinder, the moving plug plate is slidably connected to the inside of the fixed cylinder, the folding rod is slidably connected to the middle of the fixed cylinder, and a pressure relief mechanism is fixedly connected to the top of the gas tank.

[0009] In the above technical scheme, preferably, the pressure relief mechanism comprises a fixed exhaust pipe, the bottom of the fixed exhaust pipe is fixedly connected to the top of the gas tank, the bottom of the fixed exhaust pipe is fixedly connected with a ventilation fixed plate, the top of the ventilation fixed plate is fixedly connected with a stabilizing rod, the inside of the fixed exhaust pipe is provided with a return spring, and the inside of the fixed exhaust pipe is slidably connected with a hole blocking plate.

[0010] In the above technical scheme, preferably, the gas pressure maintaining mechanism comprises a rotating clamping arm, both ends of the rotating clamping arm are fixedly connected with rotating connecting rods, the outside of the rotating connecting rods is rotatably connected with fixed sleeve pipes, the inside of the fixed sleeve pipes is provided with torsion springs I, the outside of the two torsion springs I is fixedly connected to the outside of the hopper, the top of the hopper is provided with a sealing cover, one side of the sealing cover is fixedly connected with a clamping hoop, both ends of one side of the sealing cover are fixedly connected with fixed rotating pins, one side of the hopper is fixedly connected with two rotating pin sleeves, one side of the fixed rotating pin is fixedly connected with a rotating column, the inside of the rotating pin sleeve is provided with a torsion spring II, and the rotating column is rotatably connected in the inside of the rotating pin sleeve.

[0011] In the above technical scheme, preferably, the outside of the rotating rod is rotatably connected with a stabilizing sleeve rod, and the bottom of the stabilizing sleeve rod is fixedly connected to the top of the high-speed pulping machine tank body.

[0012] In the above technical scheme, preferably, the bottom of the high-speed pulping machine tank body is fixedly connected with a water inlet pipe, the outside of the water inlet pipe is fixedly connected with an observation pipe, the top of the observation pipe is fixedly connected to the outside top end of the high-speed pulping machine tank body, and the outside bottom end of the high-speed pulping machine tank body is fixedly connected with a supporting leg.

[0013] In the above technical scheme, preferably, one end of the return spring is fixedly connected to the inside top end of the fixed exhaust pipe, and the other end of the fixed exhaust pipe is fixedly connected to the top of the hole blocking plate.

[0014] In the above technical scheme, preferably, one end of the torsion spring II is fixedly connected to the inside of the rotating pin sleeve, and the other end of the torsion spring II is fixedly connected to the outside of the rotating column.

[0015] In the above technical scheme, preferably, one end of the torsion spring I is fixedly connected to the inside of the fixed sleeve pipe, the other end of the torsion spring I is fixedly connected to the outside of the rotating connecting rod, and the outside bottom end of the rotating clamping arm is fixedly connected with a pressing handle.

[0016] Compared with the prior art, the present application has the following beneficial effects: The present application can block the caking material by the leakage plate when the pulping material is poured into the inside of the hopper, and crush the caking by the moving crushing plate, so that the material can be screened without pulping, thereby reducing the process and equipment, improving the pulping efficiency and reducing the pulping cost.

[0017] The present application can store the gas while crushing the caking by the gas pressure supplementing mechanism, so that the gas pressure inside the gas tank can be improved, and the gas pressure in the tank of the high-speed pulper can be increased, so that the powder aggregation can be broken by the air flow disturbance, the gas bubble can be floated and escaped, the gas mass and the lump in the slurry can be reduced, the slurry density can be ensured, and the time for completely hydrating the powder can be shortened.

[0018] The present application can increase the gas pressure inside the tank of the pulper by the gas pressure supplementing mechanism, clean the residual slurry by the gas pressure, prevent the slurry from adhering to the inner wall of the pulper and the stirring shaft, and reduce the cleaning difficulty and the maintenance cost of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A perspective view of the present application Figure One ; Figure 2 A perspective view of the present application Figure Two ; Figure 3 A structure diagram of the leakage plate of the present application Figure 4 An inside structure diagram of the installation cylinder of the present application Figure 5 An inside structure diagram of the fixed cylinder of the present application Figure 6 An inside structure diagram of the fixed exhaust pipe of the present application Figure 7 A structure diagram of the clamping hoop of the present application Figure 8 A structure diagram of the rotating pin sleeve of the present application Figure 9 A structure diagram of the fixed sleeve of the present application

[0020] In the figure: 1, high-speed pulping machine tank body; 2, speed reducer; 3, motor; 4, caking crushing mechanism; 401, installation cylinder; 402, rotating rod; 403, driving bevel gear; 404, driven bevel gear; 405, rotating arm; 406, crushing plate; 407, folding rod; 408, leakage plate; 409, stabilizing sleeve rod; 5, air pressure supplementing mechanism; 501, fixed cylinder; 502, communication air pipe; 503, connecting air pipe; 504, communication pipe; 505, moving plug plate; 506, gas tank; 507, automatic valve; 508, gas inlet pipe; 509, one-way valve; 6, pressure relief mechanism; 601, fixed exhaust pipe; 602, air passage fixed plate; 603, stabilizing rod; 604, return spring; 605, hole-plugging air baffle; 7, hopper; 8, air pressure maintaining mechanism; 801, rotating clamping arm; 802, rotating connecting rod; 803, fixed sleeve; 804, torsional spring one; 805, pressing handle; 806, fixed rotating pin; 807, rotating column; 808, rotating pin sleeve; 809, torsional spring two; 810, sealing cover; 811, clamping hoop; 9, water inlet pipe; 10, observation pipe; 11, supporting leg; 12, power transmission shaft. DETAILED DESCRIPTION

[0021] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood and to be implemented, the present application will be described in further detail below in connection with the accompanying drawings and specific embodiments.

[0022] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details given herein. In other instances, well-known methods have not been described in detail in order to avoid obscuring the present application.

[0023] As Figures 1-9The construction device for controlling foundation differential settlement of a water-rich wide foundation pit shown comprises a high-speed pulper tank body 1, a speed reducer 2 is fixedly connected to the top of the high-speed pulper tank body 1, a caking crushing mechanism 4 is arranged at the top of the speed reducer 2, the caking crushing mechanism 4 is used for crushing caked pulping materials, a motor 3 is arranged at the top of the caking crushing mechanism 4, the speed reducer 2 can reduce the rotating speed of the motor 3, a hopper 7 is fixedly connected to the top of the high-speed pulper tank body 1, the hopper 7 facilitates the addition of materials, a gas pressure supplementing mechanism 5 is arranged outside the hopper 7, the gas pressure supplementing mechanism 5 is used for increasing the gas pressure inside the high-speed pulper tank body 1, a gas pressure maintaining mechanism 8 is arranged at the top of the hopper 7, the gas pressure maintaining mechanism 8 is used for preventing the high-speed pulper tank body 1 from leaking gas when the gas pressure inside the high-speed pulper tank body 1 is increased, a power transmission shaft 12 is fixedly connected to the output end of the motor 3, the power transmission shaft 12 can transmit power, a water inlet pipe 9 is fixedly connected to the bottom of the high-speed pulper tank body 1, an observation pipe 10 is fixedly connected to the outside of the water inlet pipe 9, the observation pipe 10 can observe the liquid position inside the high-speed pulper tank body 1, the top of the observation pipe 10 is fixedly connected to the outside top end of the high-speed pulper tank body 1, support legs 11 are fixedly connected to the outside bottom end of the high-speed pulper tank body 1, and the support legs 11 can support the high-speed pulper tank body 1.

[0024] The caking crushing mechanism 4 comprises a mounting cylinder 401 capable of providing a mounting position, both sides of the mounting cylinder 401 are rotationally connected with rotating rods 402 capable of conducting power, the outer top end of the power transmission shaft 12 is fixedly connected with two driving bevel gears 403, one side of the rotating rod 402 close to the power transmission shaft 12 is fixedly connected with a driven bevel gear 404, the cooperation of the driven bevel gear 404 and the driving bevel gear 403 can drive the rotating rod 402 to rotate, the upper driving bevel gear 403 is meshingly connected with one of the driven bevel gears 404, and the lower driving bevel gear 403 is meshingly connected with the other driven bevel gear 404, the upper driving bevel gear 403 meshes with one of the driven bevel gears 404, and the lower driving bevel gear 403 meshes with the other driven bevel gear 404, so that the two driving bevel gears 403 are meshed with the two driven bevel gears 404 respectively, thus the two driving bevel gears 403 cannot be meshed with the two driven bevel gears 404 at the same time, the rotating direction of the rotating rod 402 is consistent, one side of the rotating arm 405 away from the driven bevel gear 404 is fixedly connected with the rotating rod 402, the inside of the hopper 7 is slidably connected with a crushing plate 406 capable of extruding the caked material, the inside of the rotating arm 405 is rotationally connected with a folding rod 407 capable of connecting the crushing plate 406 and the rotating arm 405, one side of the folding rod 407 away from the rotating arm 405 is fixedly connected to the outside of the crushing plate 406, the inside of the hopper 7 is fixedly connected with a sieve plate 408, the folding rod 407 is slidably connected to one side of the hopper 7 away from the motor 3, the outside of the rotating rod 402 is rotationally connected with a stabilizing sleeve rod 409, the bottom of the stabilizing sleeve rod 409 is fixedly connected to the top of the high-speed pulper tank 1, when pulping, the raw materials need to be put into the inside of the hopper 7 first, at this time, the pulping is due to the start of the motor 3 to drive the power transmission shaft 12 to rotate, the power transmission shaft 12 rotates to drive the two driving bevel gears 403 to rotate, the upper driving bevel gear 403 rotates to drive one of the driven bevel gears 404 to rotate, the lower driving bevel gear 403 rotates to drive the other driven bevel gear 404 to rotate, so as to drive the rotating rod 402 to rotate, the rotating rod 402 rotates to drive the rotating arm 405 to rotate, the rotating arm 405 rotates to drive one end of the folding rod 407 to rotate, and the other end of the folding rod 407 reciprocates, so as to drive the crushing plate 406 to reciprocate, when the crushing plate 406 moves away from the motor 3, the caked material on the sieve plate 408 is extruded and crushed, so as to prevent the material from caking.

[0025] The air pressure supplementing mechanism 5 comprises two fixed cylinders 501, the outer parts of the two fixed cylinders 501 are fixedly connected at the two ends of the hopper 7 respectively, the lower side of the fixed cylinder 501 is fixedly connected with a communicating air pipe 502, the communicating air pipe 502 can play the role of air communication, the outer part between the two communicating air pipes 502 is fixedly connected with a connecting air pipe 503, the connecting air pipe 503 also plays the role of air communication, the middle part of the connecting air pipe 503 is fixedly connected with a communicating pipe 504, the outer part of the folding rod 407 is fixedly connected with a moving plug plate 505, the moving plug plate 505 can be inflated, the outer part of the high-speed pulper tank body 1 is fixedly connected with an air tank 506, the air tank 506 can temporarily store gas, the top of the air tank 506 is fixedly connected with an automatic valve 507, the top of the automatic valve 507 is fixedly connected with a gas inlet pipe 508, the gas inlet pipe 508 can play the role of air communication, the end of the gas inlet pipe 508 away from the automatic valve 507 is fixedly connected at the top of the high-speed pulper tank body 1, the two ends of the fixed cylinder 501 are fixedly connected with a one-way valve 509, the moving plug plate 505 is slidingly connected in the inner part of the fixed cylinder 501, the folding rod 407 is slidingly connected in the middle part of the fixed cylinder 501, the top of the air tank 506 is fixedly connected with a pressure relief mechanism 6, when the folding rod 407 moves, the moving plug plate 505 can be driven to move, when the moving plug plate 505 moves, one of the one-way valves 509 is closed and the other one-way valve 509 is opened, so that the gas can enter the communicating air pipe 502, and the one-way valve 509 opposite to the moving direction of the moving plug plate 505 is in an open state, so that the gas outside can be sucked into the inner part of the fixed cylinder 501, the gas in the communicating air pipe 502 can enter the inner part of the air tank 506 through the communicating pipe 504, the automatic valve 507 is opened, the gas in the air tank 506 can enter the inner part of the high-speed pulper tank body 1 through the gas inlet pipe 508, at this time, the sealing state of the air pressure maintaining mechanism 8 is kept, so that the air pressure in the inner part of the high-speed pulper tank body 1 can be increased, at this time, when the high-speed pulper tank body 1 is used for high-speed pulping, the powder material such as cement and fly ash is easy to form agglomerated particles due to static electricity or humidity, and the high-speed stirring is easy to roll in air to generate air bubbles, which can cause the uniformity of the slurry to decrease, therefore, at this time, the air pressure can be introduced to break the agglomeration of the powder material through air flow disturbance, and at the same time, the air bubbles can be promoted to float and escape, the air mass and the lump in the slurry can be reduced, the consistency of the slurry can be ensured, and the air flow formed by the air pressure can form a circulating flow in the slurry, and the mechanical shearing effect of the stirring blade can form double mixing, especially for high-concentration slurry, the effect is remarkable, the time for the powder material to be completely hydrated can be shortened, the local proportion imbalance can be avoided, at the same time, the water glass double-liquid slurry and the nano-silicon modified slurry commonly used for water-rich foundation pit grouting have high viscosity, and are easy to adhere to the inner wall of the pulper and the stirring shaft, long-term accumulation can affect the pulping precision. The air pressure can continuously blow the inner wall to form an air film isolation layer, reduce the slurry bonding, and at the same time, when the machine is stopped, the residual slurry can be cleaned through air pressure back blowing, the difficulty of equipment cleaning and the maintenance cost can be reduced.

[0026] The pressure relief mechanism 6 comprises a fixed exhaust pipe 601 capable of providing a mounting position and a ventilation function, the bottom of the fixed exhaust pipe 601 is fixedly connected to the top of the gas tank 506, the bottom of the fixed exhaust pipe 601 is fixedly connected with a ventilation fixed plate 602 capable of providing a mounting position, the top of the ventilation fixed plate 602 is fixedly connected with a stabilizing rod 603, the inside of the fixed exhaust pipe 601 is provided with a reset spring 604, the inside of the fixed exhaust pipe 601 is slidingly connected with a hole blocking plate 605, the stabilizing rod 603 can stabilize the movement of the hole blocking plate 605, the reset spring 604 can push the hole blocking plate 605 to reset, one end of the reset spring 604 is fixedly connected to the inside top end of the fixed exhaust pipe 601, the other end of the fixed exhaust pipe 601 is fixedly connected to the top of the hole blocking plate 605, when the gas pressure inside the gas tank 506 is too high, the gas can overcome the elastic force of the reset spring 604 to push the hole blocking plate 605 to move upwards, when the hole blocking plate 605 moves away from the inside bottom end of the fixed exhaust pipe 601, the gas can be discharged through the air hole, and after a certain range of gas is discharged, the hole blocking plate 605 can be pushed to reset under the reaction force of the reset spring 604, in turn the fixed exhaust pipe 601 can be re-plugged, at this time the gas pressure will not be discharged through the fixed exhaust pipe 601, in turn the gas pressure inside the gas tank 506 can be maintained, and the stability of the gas supply can be maintained.

[0027] The air pressure maintaining mechanism 8 comprises a rotating clamping arm 801, both ends of the rotating clamping arm 801 are fixedly connected with rotating connecting rods 802, the outer part of the rotating connecting rods 802 is rotatably connected with fixed sleeve pipes 803, the fixed sleeve pipes 803 can provide installation positions, the inner part of the fixed sleeve pipes 803 is provided with torsion springs 804, the torsion springs 804 can drive the rotating connecting rods 802 to reset by using the reaction force of the torsion springs 804, so as to drive the rotating clamping arm 801 to reset, the outer part of the two torsion springs 804 is fixedly connected on the outer side of the hopper 7, the top of the hopper 7 is provided with a sealing cover 810, the sealing cover 810 can keep the sealing of the high-speed pulper tank body 1 after covering the top of the hopper 7, one side of the sealing cover 810 is fixedly connected with a clamping hoop 811, the clamping hoop 811 can be clamped with the rotating clamping arm 801, so as to cover the sealing cover 810 on the top of the hopper 7, both ends of one side of the sealing cover 810 are fixedly connected with fixed rotating pins 806, one side of the hopper 7 is fixedly connected with two rotating pin sleeves 808, one side of the fixed rotating pins 806 is fixedly connected with rotating columns 807, the inner part of the rotating pin sleeves 808 is provided with torsion springs 809, the reaction force of the torsion springs 809 can drive the rotating pin sleeves 808 to reset, so as to drive the sealing cover 810 to reset and open, and then the hopper 7 can be filled with materials, the rotating columns 807 are rotatably connected in the inner part of the rotating pin sleeves 808, one end of the torsion springs 809 is fixedly connected in the inner part of the rotating pin sleeves 808, the other end of the torsion springs 809 is fixedly connected on the outer part of the rotating columns 807, one end of the torsion springs 804 is fixedly connected in the inner part of the fixed sleeve pipes 803, the other end of the torsion springs 804 is fixedly connected on the outer part of the rotating connecting rods 802, the outer bottom end of the rotating clamping arm 801 is fixedly connected with a pressing handle 805, when filling materials, the pressing handle 805 is pressed towards the hopper 7, so as to drive the rotating clamping arm 801 to rotate, the rotating clamping arm 801 can drive the rotating connecting rods 802 to rotate, because the fixed sleeve pipes 803 are fixed, when the rotating connecting rods 802 rotate, the torsion springs 804 can be compressed, when the rotating clamping arm 801 rotates, the clamping hoop 811 can be released, at this time, the rotating pin sleeves 808 can be driven to rotate by the reaction force of the torsion springs 809, so as to drive the sealing cover 810 to rotate and open, at this time, the hopper 7 can be filled with materials, when pulping, the sealing cover 810 is rotated downwards, and the clamping hoop 811 contacts the top of the rotating clamping arm 801, at this time, the clamping hoop 811 pushes the rotating clamping arm 801 to open outwards, when the clamping hoop 811 moves to the clamping position of the rotating clamping arm 801, the rotating connecting rods 802 are driven to reset by the reaction force of the torsion springs 804, so as to drive the rotating clamping arm 801 to reset, and then the rotating clamping arm 801 can be clamped with the clamping hoop 811 again, and then the sealing cover 810 can be covered on the top of the hopper 7, and then the sealing of the inner part of the high-speed pulper tank body 1 can be kept.

[0028] Working principle: During pulping, the raw materials are first placed into the hopper 7. Pulping is then initiated by the start of the motor 3, which drives the power transmission shaft 12 to rotate. The rotation of the power transmission shaft 12 drives two active bevel gears 403 to rotate. When the upper active bevel gear 403 rotates, it drives one of the driven bevel gears 404 to rotate. When the lower active bevel gear 403 rotates, it drives the other driven bevel gear 404 to rotate, which in turn drives the rotating rod 402 to rotate. When the rotating rod 402 rotates, it drives the rotating arm 405 to rotate. When the rotating arm 405 rotates, it drives one end of the folding rod 407 to rotate. The other end of the folding rod 407 then reciprocates, which in turn drives the crushing plate 406 to reciprocate. When the crushing plate 406 moves away from the motor 3, it crushes and pulverizes the clumps of material on the perforated plate 408, thus preventing the material from clumping. When the folding rod 407 moves, it can drive the moving stopper plate 505 to move. When the moving stopper plate 505 moves, one of the one-way valves 509 closes and the other one-way valve 509 opens, allowing gas to enter the connecting air pipe 502. The one-way valve 509, which moves in the opposite direction to the moving stopper plate 505, is open, allowing external gas to be drawn into the fixed cylinder 501. The gas entering the connecting air pipe 502 will then enter the gas tank 506 through the connecting pipe 504. The automatic valve 507 is opened, and the gas in the gas tank 506 will enter the high-speed pulper tank 1 through the gas inlet pipe 508. At this time, the air pressure maintaining mechanism 8 is kept in a sealed state, thereby increasing the air pressure inside the high-speed pulper tank 1. During high-speed slurry preparation in the slurry tank 1, powder materials such as cement and fly ash are prone to agglomeration due to static electricity or humidity. High-speed stirring also easily entangles air, generating bubbles and reducing slurry uniformity. Therefore, introducing air pressure can break up these agglomerates through airflow disturbance, while simultaneously promoting the rise and escape of air bubbles, reducing air clumps and lumps in the slurry and ensuring consistent slurry density. Furthermore, the airflow created by the air pressure forms a circulation within the slurry, creating a dual mixing effect with the mechanical shearing action of the stirring blades. This is particularly effective for high-concentration slurries, such as those with a water-cement ratio ≤1:1, shortening the time for complete powder hydration and preventing localized imbalances. Additionally, water glass two-component slurries and nano-silica modified slurries commonly used in water-rich foundation pit grouting have high viscosity and easily adhere to the inner wall of the slurry mixer and the stirring shaft, which can affect slurry preparation accuracy over time. Air pressure continuously blows across the inner wall, forming an air film isolation layer to reduce slurry adhesion. Simultaneously, when the machine stops, air pressure can be used to backflush away residual slurry, reducing equipment cleaning difficulty and maintenance costs. When the gas pressure inside the gas tank 506 is too high, the gas will push the hole-plugging gas plate 605 upwards to move away from the inner bottom end of the fixed exhaust pipe 601, and then the gas can be discharged through the gas hole. When the gas is discharged to a certain extent, the hole-plugging gas plate 605 will be pushed back under the action of the restoring spring 604, and then the fixed exhaust pipe 601 can be sealed again. At this time, the gas pressure will not be discharged through the fixed exhaust pipe 601, and then the stability of the gas supply can be maintained. When adding material, the pressing handle 805 is pressed towards the hopper 7, so as to drive the rotating clamping arm 801 to rotate. When the rotating clamping arm 801 rotates, the rotating connecting rod 802 is driven to rotate. Since the fixed sleeve 803 is fixed, the rotating connecting rod 802 can compress the torsional spring 804 when it rotates. When the rotating clamping arm 801 rotates, the clamping hoop 811 is released. At this time, the rotating pin sleeve 808 is driven to rotate under the action of the torsional spring 809, so as to drive the sealing cover 810 to rotate and open. At this time, the hopper 7 can be filled with material. When pulping, the sealing cover 810 is rotated downwards, and the clamping hoop 811 contacts the top of the rotating clamping arm 801. At this time, the clamping hoop 811 pushes the rotating clamping arm 801 to open outward. When the clamping hoop 811 moves to the clamping position of the rotating clamping arm 801, the rotating connecting rod 802 is driven to reset under the action of the torsional spring 804, so as to drive the rotating clamping arm 801 to reset. Then the rotating clamping arm 801 can be clamped with the clamping hoop 811 again, so as to cover the sealing cover 810 on the top of the hopper 7, and then the sealing of the high-speed pulper tank body 1 can be maintained.

[0029] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A construction device for controlling differential settlement of foundations in a water-rich, wide foundation pit, comprising a high-speed slurry mixing tank (1), characterized in that, A speed reducer (2) is fixedly connected to the top of the high-speed pulper tank (1). An agglomeration crushing mechanism (4) is provided on the top of the speed reducer (2). The agglomeration crushing mechanism (4) is used to crush agglomerated pulping materials. A motor (3) is provided on the top of the agglomeration crushing mechanism (4). A hopper (7) is fixedly connected to the top of the high-speed pulper tank (1). The hopper (7) facilitates the addition of materials. An air pressure replenishment mechanism (5) is provided on the outside of the hopper (7). The air pressure replenishment mechanism (5) is used to increase the air pressure inside the high-speed pulper tank (1). An air pressure holding mechanism (8) is provided on the top of the hopper (7). The air pressure holding mechanism (8) is used to prevent the high-speed pulper tank (1) from leaking air when the air pressure is increased. A power transmission shaft (12) is fixedly connected to the output end of the motor (3).

2. The construction device for controlling differential settlement of foundations in a water-rich, wide foundation pit according to claim 1, characterized in that, The agglomeration crushing mechanism (4) includes a mounting cylinder (401), on both sides of which are rotatably connected rotating rods (402). Two driving bevel gears (403) are fixedly connected to the outer top of the power transmission shaft (12). A driven bevel gear (404) is fixedly connected to the side of the rotating rod (402) near the power transmission shaft (12). The upper driving bevel gear (403) is meshed with one of the driven bevel gears (404), and the lower driving bevel gear (403) is meshed with the other driven bevel gear (404). The parts are meshed together. The rotating rod (402) is fixedly connected to the side away from the driven bevel gear (404) with a rotating arm (405). The crushing plate (406) is slidably connected inside the hopper (7). The folding rod (407) is rotatably connected inside the rotating arm (405). The side of the folding rod (407) away from the rotating arm (405) is fixedly connected to the outside of the crushing plate (406). The strainer (408) is fixedly connected inside the hopper (7). The folding rod (407) is slidably connected to the side of the hopper (7) away from the motor (3).

3. The construction device for controlling differential settlement of foundations in a wide, water-rich foundation pit according to claim 2, characterized in that, The air pressure replenishment mechanism (5) includes two fixed cylinders (501), the two fixed cylinders (501) are respectively fixedly connected to the outer ends of the hopper (7), a connecting air pipe (502) is fixedly connected to the lower side of the fixed cylinder (501), a connecting air pipe (503) is fixedly connected between the outer sides of the two connecting air pipes (502), a connecting pipe (504) is fixedly connected to the middle of the connecting air pipe (503), a movable stopper plate (505) is fixedly connected to the outer side of the folding rod (407), and an air tank (506) is fixedly connected to the outer side of the high-speed pulper tank (1). An automatic valve (507) is fixedly connected to the top of (506), and a gas inlet pipe (508) is fixedly connected to the top of the automatic valve (507). One end of the gas inlet pipe (508) away from the automatic valve (507) is fixedly connected to the top of the high-speed pulper tank (1). One-way valves (509) are fixedly connected to both ends of the fixed cylinder (501). The movable stopper plate (505) is slidably connected inside the fixed cylinder (501). The folding rod (407) is slidably connected to the middle of the fixed cylinder (501). A pressure relief mechanism (6) is fixedly connected to the top of the gas tank (506).

4. The construction device for controlling differential settlement of foundations in a water-rich, wide foundation pit according to claim 3, characterized in that, The pressure relief mechanism (6) includes a fixed exhaust pipe (601), the bottom of which is fixedly connected to the top of the gas tank (506). A venting fixing plate (602) is fixedly connected to the bottom of the fixed exhaust pipe (601), and a stabilizing rod (603) is fixedly connected to the top of the venting fixing plate (602). A reset spring (604) is provided inside the fixed exhaust pipe (601), and a perforated air-blocking plate (605) is slidably connected inside the fixed exhaust pipe (601).

5. The construction device for controlling differential settlement of foundations in a wide, water-rich foundation pit according to claim 1, characterized in that, The air pressure maintaining mechanism (8) includes a rotating clamping arm (801), both ends of which are fixedly connected to a rotating connecting rod (802). A fixed sleeve (803) is rotatably connected to the outside of the rotating connecting rod (802). A torsion spring (804) is provided inside the fixed sleeve (803). The two torsion springs (804) are fixedly connected to the outside of the hopper (7). A sealing cover (810) is provided on the top of the hopper (7). A snap clamp (811) is fixedly connected to one side of the sealing cover (810). Fixed pivot pins (806) are fixedly connected to both ends of one side of the sealing cover (810). Two rotating pin sleeves (808) are fixedly connected to one side of the hopper (7). A rotating column (807) is fixedly connected to one side of the fixed pivot pin (806). A torsion spring (809) is provided inside the rotating pin sleeve (808). The rotating column (807) is rotatably connected inside the rotating pin sleeve (808).

6. The construction device for controlling differential settlement of foundations in a wide, water-rich foundation pit according to claim 2, characterized in that, The rotating rod (402) is rotatably connected to a stabilizing sleeve (409), and the bottom of the stabilizing sleeve (409) is fixedly connected to the top of the high-speed pulping machine tank (1).

7. The construction device for controlling differential settlement of foundations in a wide, water-rich foundation pit according to claim 1, characterized in that, The bottom of the high-speed pulper tank (1) is fixedly connected to a water inlet pipe (9), and an observation pipe (10) is fixedly connected to the outside of the water inlet pipe (9). The top of the observation pipe (10) is fixedly connected to the top of the outside of the high-speed pulper tank (1), and a support leg (11) is fixedly connected to the bottom of the outside of the high-speed pulper tank (1).

8. The construction device for controlling differential settlement of foundations in a wide, water-rich foundation pit according to claim 4, characterized in that, One end of the return spring (604) is fixedly connected to the inner top of the fixed exhaust pipe (601), and the other end of the fixed exhaust pipe (601) is fixedly connected to the top of the perforated air plug (605).

9. A construction device for controlling differential settlement of foundations in a wide, water-rich foundation pit according to claim 5, characterized in that, One end of the second torsion spring (809) is fixedly connected to the inside of the rotating pin sleeve (808), and the other end of the second torsion spring (809) is fixedly connected to the outside of the rotating column (807).

10. A construction device for controlling differential settlement of foundations in a water-rich, wide foundation pit according to claim 5, characterized in that, One end of the torsion spring (804) is fixedly connected to the inside of the fixed sleeve (803), and the other end of the torsion spring (804) is fixedly connected to the outside of the rotating connecting rod (802). A pressing handle (805) is fixedly connected to the bottom of the outer side of the rotating clamp arm (801).

Images