Deep foundation pit concrete pouring system

Abstract

The utility model discloses a deep foundation pit concrete pouring system which comprises a first-stage feeding hopper, at least one second-stage feeding hopper and at least two third-stage feeding hoppers, the first-stage feeding hopper is installed on a first-stage fixing platform, the first-stage fixing platform is detachably fixed to a foundation pit supporting beam, and the first-stage feeding hopper is connected with at least one first-stage elephant trunk; the secondary feeding hoppers are installed on the secondary fixing platform, the secondary fixing platform is detachably fixed to a foundation pit supporting beam, a feeding port of each secondary feeding hopper is in butt joint with a discharging port of the corresponding primary elephant trunk, and each secondary feeding hopper is connected with two secondary elephant trunks; the third-level feeding hoppers are installed on the third-level fixing platform, the third-level fixing platform is detachably fixed to the foundation pit supporting beam, a feeding port of each third-level feeding hopper is in butt joint with a discharging port of the corresponding second-level elephant trunk, and each third-level feeding hopper is connected with at least two third-level elephant trunks. The concrete pouring system for the deep foundation pit is easier to disassemble and assemble on site, more convenient to operate and more flexible in construction.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a concrete pouring system for deep foundation pits. Background Art

[0002] With the continuous and rapid development of the housing construction industry in China, the concrete foundation slabs of foundation pits have gradually become large in volume and high in strength grade. The large-volume slab is located at the bottom of the foundation pit, and the concrete is conveyed downward from the edge of the foundation pit. The traditional concrete pouring method for foundation pits is usually completed by a chute. The chute is a main chute with a certain slope erected from the edge of the foundation pit to the bottom, and a large number of column falsework are built in the foundation pit to support the main chute. Branch chutes are connected at different positions of the main chute. The concrete flows by its own weight in the chute to the branch chute pipes at various positions and is sent to the bottom slab pouring working face through the branch chute pipes. However, for ultra-deep foundation pits with a drop greater than 40 meters, the existing pouring method cannot avoid the obstruction and collision of the foundation pit support beam system. The height of the column falsework is too high, the erection difficulty is great, the disassembly and assembly difficulty is great, and there are disadvantages such as high construction cost and inflexible construction. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a concrete pouring system for deep foundation pits, which can be applied to the pouring construction of large-volume slabs with a foundation pit depth greater than 40 meters and a volume greater than 40,000 cubic meters. Moreover, the setting of column falsework can be omitted, the construction cost can be reduced, the on-site disassembly and assembly are simpler, the operation is more convenient, and each level of fixed platform can be flexibly installed at the required position according to actual needs, and the on-site construction is more flexible.

[0004] A concrete pouring system for deep foundation pits according to an embodiment of the present utility model includes a primary feeding hopper, at least one secondary feeding hopper, and at least two tertiary feeding hoppers. The primary feeding hopper is installed on a primary fixed platform, and the primary fixed platform is detachably fixed to the foundation pit support beam. The primary feeding hopper is connected to at least one primary chute pipe, and the primary chute pipe is hoisted on the foundation pit support beam through a primary anti-falling connection device. The secondary feeding hopper is installed on a secondary fixed platform, and the secondary fixed platform is detachably fixed to the foundation pit support beam. The height position of the secondary feeding hopper is lower than the height position of the primary feeding hopper. The feeding port of each secondary feeding hopper is docked with the discharging port of a corresponding primary chute pipe. Each secondary feeding hopper is connected to at least two secondary chute pipes, and the secondary chute pipes are hoisted on the foundation pit support beam through secondary anti-falling connection devices. The tertiary feeding hopper is installed on a tertiary fixed platform, and the tertiary fixed platform is detachably fixed to the foundation pit support beam. The height position of the tertiary feeding hopper is lower than the height position of the secondary feeding hopper. The feeding port of each tertiary feeding hopper is docked with the discharging port of a corresponding secondary chute pipe. Each tertiary feeding hopper is connected to at least two tertiary chute pipes, and the tertiary chute pipes are hoisted on the foundation pit support beam through tertiary anti-falling connection devices.

[0005] A concrete pouring system for deep foundation pits according to an embodiment of the present utility model has at least the following beneficial effects:

[0006] 1. The concrete is transported downward step by step through the feeding hoppers at all levels, and the fixed platforms and chute pipes at all levels are fixedly connected to the foundation pit support beam, avoiding the problems of obstruction and collision of the support beam of the foundation pit, so that the concrete pouring system provided by the present utility model can be applied to the pouring construction of large-volume bottom plates with a foundation pit depth greater than 40 meters and a volume greater than 40,000 cubic meters.

[0007] 2. The fixed platforms at all levels are detachably installed on the foundation pit support beam, and the feeding hoppers at all levels are installed on the corresponding fixed platforms. Then, the chute pipes at all levels are installed, which can save the setting of column falsework, reduce the construction cost, and is simpler and more convenient for on-site disassembly and installation. Moreover, the fixed platforms at all levels can be flexibly installed at the required positions according to actual needs, making the on-site construction more flexible.

[0008] 3. Components such as the feeding hoppers and fixed platforms at all levels can be set as standardized components, improving the reuse rate and reducing the use cost.

[0009] 4. The chute pipes at all levels are hoisted on the foundation pit support beam through the corresponding anti-falling connection devices, preventing the fatigue failure of the chute pipes at all levels and reducing the safety risk.

[0010] According to some embodiments of the present utility model, the first-level fixed platform is detachably fixed to the foundation pit support beam through anchor bolt connectors, the second-level fixed platform is detachably fixed to the foundation pit support beam through anchor bolt connectors, the lower end of the first-level chute pipe is fixed to the second-level fixed platform, the third-level fixed platform is detachably fixed to the foundation pit support beam through anchor bolt connectors, and the lower end of the second-level chute pipe is fixed to the third-level fixed platform.

[0011] According to some embodiments of the present utility model, the third-level fixed platform includes an operation platform, an installation hole is formed in the middle of the operation platform, a support basket is arranged below the installation hole, the support basket is fixedly connected to the operation platform, the third-level feed hopper is placed in the support basket from the installation hole, and the third-level chute pipe is connected to the third-level feed hopper from the gap of the support basket.

[0012] According to some embodiments of the present utility model, the third-level fixed platform further includes a plurality of steel connectors, the steel connectors are welded to form a connection frame, the connection frame is fixedly connected to the operation platform, and the connection frame is fixed to the foundation pit support beam through anchor bolt connectors.

[0013] According to some embodiments of the present utility model, the lower end of the second-level chute pipe is fixedly installed on the connection frame of the corresponding third-level fixed platform through a hoop.

[0014] According to some embodiments of the present utility model, the first-level anti-falling connection device includes an anti-falling pull rod, a lifting ring, and an anti-falling connector detachably fixed to the foundation pit support beam. The lifting ring is sleeved on the first-level chute pipe, and the lifting ring is connected to the anti-falling connector through the anti-falling pull rod.

[0015] According to some embodiments of the present utility model, the structures of the second-level anti-falling connection device and the third-level anti-falling connection device are the same as the structure of the first-level anti-falling connection device.

[0016] According to some embodiments of the present utility model, the second-level feed hopper is provided with at least two first discharge pipe joints, the first discharge pipe joints are detachably docked with the corresponding second-level chute pipes through flanges, the second-level feed hopper is provided with a first valve for opening and closing the first discharge pipe joints, the third-level feed hopper is provided with at least two second discharge pipe joints, the second discharge pipe joints are detachably docked with the corresponding third-level chute pipes through flanges, and the third-level feed hopper is provided with a second valve for opening and closing the second discharge pipe joints.

[0017] According to some embodiments of the present utility model, the shape of the upper cavity of the three - stage feed hopper is a rectangular cube, the shape of the lower cavity of the two - stage feed hopper is an inverted frustum of a pyramid, and at least two of the outer walls of the four sides of the lower cavity of the three - stage feed hopper are provided with the second discharge pipe joints.

[0018] According to some embodiments of the present utility model, the second discharge pipe joints are provided on the outer walls of the four sides of the lower cavity of the three - stage feed hopper. The second valve includes a baffle, and the baffle is used to fit against the inner wall of the side of the lower cavity of the three - stage feed hopper. A positioning block for abutting against the baffle is provided on the bottom inner wall of the lower cavity of the three - stage feed hopper.

[0019] Some additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above - mentioned and / or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0021] Figure 1 is a schematic diagram of a deep - foundation - pit concrete pouring system according to an embodiment of the present utility model when it is arranged in a foundation pit;

[0022] Figure 2 is Figure 1 a schematic diagram of a deep - foundation - pit concrete pouring system shown;

[0023] Figure 3 is Figure 2 an enlarged view of part A in;

[0024] Figure 4 is Figure 2 an enlarged view of part B in;

[0025] Figure 5 is Figure 2 a schematic diagram of the three - stage feed hopper of a deep - foundation - pit concrete pouring system shown in a first viewing direction;

[0026] Figure 6 is Figure 2 a schematic diagram of the three - stage feed hopper of a deep - foundation - pit concrete pouring system shown in a second viewing direction.

[0027] Reference Signs:

[0028] The first-stage feeding hopper 110, the first-stage fixed platform 120, the first-stage chute pipe 130, the first-stage anti-falling connection device 140, the anti-falling pull rod 141, the lifting ring 142, the anti-falling connecting piece 143, the second-stage feeding hopper 210, the second-stage anti-falling connection device 220, the second-stage fixed platform 230, the second-stage chute pipe 240, the hoop 241, the third-stage feeding hopper 310, the upper cavity 311, the lower cavity 312, the positioning block 313, the second discharge pipe joint 320, the second valve 330, the third-stage fixed platform 340, the operation platform 341, the installation hole 3411, the support basket 342, the steel connecting piece 3431, the connecting frame 343, the third-stage anti-falling connection device 350, the third-stage chute pipe 360, the anchor bolt connecting piece 400, the flange 500, the foundation pit support beam 600. Detailed implementation manners

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0031] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and the second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0033] Refer to Figures 1 to 3, A deep foundation pit concrete pouring system according to an embodiment of the present invention includes a primary feeding hopper 110, at least one secondary feeding hopper 210, and at least two tertiary feeding hoppers 310. The primary feeding hopper 110 is installed on a primary fixed platform 120, and the primary fixed platform 120 is detachably fixed to the foundation pit support beam 600. The primary feeding hopper 110 is connected to at least one primary chute 130, and the primary chute 130 is hoisted on the foundation pit support beam 600 through a primary anti-falling connection device 140; the secondary feeding hopper 210 is installed on a secondary fixed platform 230, and the secondary fixed platform 230 is detachably fixed to the foundation pit support beam 600. The height position of the secondary feeding hopper 210 is lower than the height position of the primary feeding hopper 110. The feeding port of each secondary feeding hopper 210 is docked with the discharge port of a corresponding primary chute 130. Each secondary feeding hopper 210 is connected to at least two secondary chutes 240, and the secondary chutes 240 are hoisted on the foundation pit support beam 600 through a secondary anti-falling connection device 220; the tertiary feeding hopper 310 is installed on a tertiary fixed platform 340, and the tertiary fixed platform 340 is detachably fixed to the foundation pit support beam 600. The height position of the tertiary feeding hopper 310 is lower than the height position of the secondary feeding hopper 210. The feeding port of each tertiary feeding hopper 310 is docked with the discharge port of a corresponding secondary chute 240. Each tertiary feeding hopper 310 is connected to at least two tertiary chutes 360, and the tertiary chutes 360 are hoisted on the foundation pit support beam 600 through a tertiary anti-falling connection device 350.

[0034] The deep foundation pit concrete pouring system provided by the present invention conveys concrete step by step through each level of feeding hopper, and each level of fixed platform and each level of chute are fixedly connected to the foundation pit support beam 600, avoiding the problems of obstruction and collision of the support beam of the foundation pit, so that the concrete pouring system provided by the present invention can be applied to the pouring construction of large-volume bottom plates with a foundation pit depth greater than 40 meters and a volume greater than 40,000 cubic meters.

[0035] In the deep foundation pit concrete pouring system provided by the present invention, each level of fixed platform is detachably installed on the foundation pit support beam 600, and each level of feeding hopper is installed on the corresponding fixed platform. Then, each level of chute is installed, which can save the setting of the column falsework, reduce the construction cost, is simpler and more convenient for on-site disassembly and installation, and each level of fixed platform can be flexibly installed at the required position according to actual needs, making the on-site construction more flexible.

[0036] In the deep foundation pit concrete pouring system provided by the present invention, components such as each level of feeding hopper and each level of fixed platform can be set as standardized components, improving the reuse rate and reducing the use cost;

[0037] In the deep foundation pit concrete pouring system provided by the present invention, each level of chute is hoisted on the foundation pit support beam 600 through the corresponding anti-falling connection device, preventing the fatigue failure of each level of chute and reducing the safety risk.

[0038] Refer to Figure 2 and Figure 3 According to some embodiments of the present utility model, the first-level fixed platform 120 is detachably fixed to the foundation pit support beam 600 through the anchor bolt connector 400, the second-level fixed platform 230 is detachably fixed to the foundation pit support beam 600 through the anchor bolt connector 400, the lower end of the first-level chute pipe 130 is fixed to the second-level fixed platform 230, the third-level fixed platform 340 is detachably fixed to the foundation pit support beam 600 through the anchor bolt connector 400, and the lower end of the second-level chute pipe 240 is fixed to the third-level fixed platform 340. The anchor bolts on the foundation pit support beam 600 can be used to firmly fix each level of the fixed platform and facilitate the disassembly and assembly of each level of the fixed platform.

[0039] Refer to Figure 3 According to some embodiments of the present utility model, the third-level fixed platform 340 includes an operation platform 341. An installation hole 3411 is formed in the middle of the operation platform 341. A support basket 342 is arranged below the installation hole 3411. The support basket 342 is fixedly connected to the operation platform 341. The third-level feed hopper 310 is placed in the support basket 342 from the installation hole 3411, and the third-level chute pipe 360 is connected to the third-level feed hopper 310 through the gap of the support basket 342. With the above arrangement, it is convenient to disassemble and assemble the third-level feed hopper 310 on the third-level fixed platform 340, and the bottom of the third-level feed hopper 310 is supported by the support basket 342. In addition, the operation platform 341 can be used by operators, facilitating the operators to operate the third-level feed hopper 310 on the third-level fixed platform 340 to control the concrete pouring work.

[0040] In the specific implementation process, the first-level fixed platform 120 and the second-level fixed platform 230 can also adopt a structure similar to that of the third-level fixed platform 340.

[0041] It should be noted that in some other embodiments, the third-level feed hopper 310 can also be installed on the third-level fixed platform 340 in other ways. For example, a bearing frame is arranged at the upper end of the third-level feed hopper 310, and the bearing frame abuts against the upper side of the side wall of the installation hole 3411. At this time, the third-level fixed platform 340 may not be provided with the support basket 342.

[0042] Refer to Figure 3 According to some embodiments of the present utility model, the third-level fixed platform 340 further includes a plurality of steel connectors 3431. The steel connectors 3431 are welded to form a connection frame 343. The connection frame 343 is fixedly connected to the operation platform 341, and the connection frame 343 is fixed to the foundation pit support beam 600 through the anchor bolt connector 400. Through the arrangement of the connection frame 343, it is convenient to fix the third-level fixed platform 340 to the foundation pit support beam 600.

[0043] Refer to Figure 3, according to some embodiments of the present utility model, the lower end of the secondary chute pipe 240 is fixedly installed on the connecting frame 343 of the corresponding third-level fixed platform 340 through a hoop 241. With the above arrangement, the lower end of the secondary chute pipe 240 can be firmly fixed to the third-level fixed platform 340, and the fixing is convenient.

[0044] Refer to Figure 4 , according to some embodiments of the present utility model, the first anti-falling connection device 140 includes an anti-falling pull rod 141, a lifting ring 142 and an anti-falling connection member 143 detachably fixed to the foundation pit support beam 600. The lifting ring 142 is sleeved on the first chute pipe 130, and the lifting ring 142 is connected to the anti-falling connection member 143 through the anti-falling pull rod 141. With the above arrangement, the first anti-falling connection device 140 can hoist the first chute pipe 130 to a suitable position according to the actual situation, and the implementation is more flexible and convenient.

[0045] According to some embodiments of the present utility model, the structures of the second anti-falling connection device 220 and the third anti-falling connection device 350 are the same as the structure of the first anti-falling connection device 140, so as to form standardized components, improve the reuse rate and reduce the use cost.

[0046] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 , according to some embodiments of the present utility model, the secondary feed hopper 210 is provided with at least two first discharge pipe joints, the first discharge pipe joints are detachably docked with the corresponding secondary chute pipes 240 through flanges 500, the secondary feed hopper 210 is provided with a first valve for opening and closing the first discharge pipe joints, the tertiary feed hopper 310 is provided with at least two second discharge pipe joints 320, the second discharge pipe joints 320 are detachably docked with the corresponding tertiary chute pipes 360 through flanges 500, and the tertiary feed hopper 310 is provided with a second valve 330 for opening and closing the second discharge pipe joints 320. Through the above arrangement, it is convenient for the secondary feed hopper 210 to disassemble and assemble the secondary chute pipe 240, and it is also convenient for the tertiary feed hopper 310 to disassemble and assemble the tertiary chute pipe 360.

[0047] Refer to Figure 5 and Figure 6 , according to some embodiments of the present utility model, the shape of the upper cavity 311 of the tertiary feed hopper 310 is a rectangular cube, the shape of the lower cavity 312 of the secondary feed hopper 210 is an inverted frustum of a pyramid, and at least two of the four side outer walls of the lower cavity 312 of the tertiary feed hopper 310 are provided with second discharge pipe joints 320. With the above arrangement, each tertiary feed hopper 310 can be connected to more than two tertiary chute pipes 360.

[0048] Refer to Figure 5 andFigure 6 , according to some embodiments of the present utility model, second discharge pipe connectors 320 are provided on the outer walls of the four sides of the lower cavity 312 of the three-stage feed hopper 310. The second valve 330 includes a baffle, and the baffle is used to fit against the inner wall of the side of the lower cavity 312 of the three-stage feed hopper 310. A positioning block 313 for abutting against the baffle is provided on the bottom inner wall of the lower cavity 312 of the three-stage feed hopper 310. Thus, each three-stage feed hopper 310 can be connected to 2 to 4 three-stage chutes 360 according to actual needs. For the second discharge pipe connectors 320 without connected three-stage chutes 360, a baffle can be placed against the corresponding inner wall of the side of the lower cavity 312 of the three-stage feed hopper 310 to close the third gear pipe connector. With the above arrangement, the second valve 330 has a simple structure and is convenient to operate.

[0049] In the specific implementation process, the structure of the secondary feed hopper 210 can be the same as that of the three-stage feed hopper 310, so that each level of feed hopper can be made into the same type of standardized component, which is convenient for reuse.

[0050] It can be imagined that in some other embodiments, the above-mentioned second valve 330 can also adopt other setting methods. For example, the second valve 330 can be set as a ball valve, and the ball valve is arranged at the second discharge pipe connector 320.

[0051] In some embodiments, the primary chute 130 can be rotatably installed on the primary feed hopper 110 to adjust the position of the primary chute 130 as needed.

[0052] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0053] The above has described the embodiments in detail with reference to the drawings, but the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can also be made without departing from the purpose of the present utility model.

Claims

1. A deep foundation pit concrete pouring system, characterized in that: include: A primary feed hopper (110) is installed on a primary fixed platform (120), the primary fixed platform (120) is detachably fixed to a foundation pit support beam (600), the primary feed hopper (110) is connected to at least one primary slide pipe (130), and the primary slide pipe (130) is hoisted on the foundation pit support beam (600) through a primary anti-fall connection device (140); At least one secondary feed hopper (210) is installed on a secondary fixed platform (230), the secondary fixed platform (230) is detachably fixed to the foundation pit support beam (600), the height position of the secondary feed hopper (210) is lower than the height position of the primary feed hopper (110), the feed port of each secondary feed hopper (210) is connected to the discharge port of a corresponding primary chute (130), each secondary feed hopper (210) is connected to at least two secondary chute (240), and the secondary chute (240) is hoisted on the foundation pit support beam (600) through a secondary anti-fall connection device (220); At least two tertiary feed hoppers (310) are installed on a tertiary fixed platform (340), and the tertiary fixed platform (340) is detachably fixed to the foundation pit support beam (600). The height position of the tertiary feed hopper (310) is lower than the height position of the secondary feed hopper (210). The feed port of each tertiary feed hopper (310) is connected to the discharge port of a corresponding secondary chute (240). Each tertiary feed hopper (310) is connected to at least two tertiary chute (360), and the tertiary chute (360) is hoisted on the foundation pit support beam (600) through a tertiary anti-fall connection device (350).

2. A deep foundation pit concrete pouring system according to claim 1, characterized in that: The primary fixed platform (120) is detachably fixed to the foundation pit supporting beam (600) via an anchor connector (400), the secondary fixed platform (230) is detachably fixed to the foundation pit supporting beam (600) via an anchor connector (400), the lower end of the primary slide pipe (130) is fixed to the secondary fixed platform (230), the tertiary fixed platform (340) is detachably fixed to the foundation pit supporting beam (600) via an anchor connector (400), and the lower end of the secondary slide pipe (240) is fixed to the tertiary fixed platform (340).

3. A deep foundation pit concrete pouring system according to claim 2, characterized in that: The three-stage fixed platform (340) includes an operating platform (341), a mounting hole (3411) is provided in the middle of the operating platform (341), a support basket (342) is provided below the mounting hole (3411), the support basket (342) is fixedly connected to the operating platform (341), the three-stage feed hopper (310) is placed in the support basket (342) through the mounting hole (3411), and the three-stage chute (360) is connected to the three-stage feed hopper (310) from the gap of the support basket (342).

4. A deep foundation pit concrete pouring system according to claim 3, characterized in that: The three-level fixed platform (340) also includes a plurality of steel connectors (3431), wherein the steel connectors (3431) are welded to form a connecting frame (343), wherein the connecting frame (343) is fixedly connected to the operating platform (341), and wherein the connecting frame (343) is fixed to the foundation pit supporting beam (600) via an anchor connector (400).

5. A deep foundation pit concrete pouring system according to claim 4, characterized in that: The lower end of the secondary slide pipe (240) is fixedly mounted on the connecting frame (343) of the corresponding tertiary fixed platform (340) via a clamp (241).

6. A deep foundation pit concrete pouring system according to claim 1, characterized in that: The first-level anti-fall connection device (140) comprises an anti-fall pull rod (141), a lifting ring (142) and an anti-fall connection piece (143) detachably fixed to the foundation pit support beam (600); the lifting ring (142) is sleeved on the first-level slide pipe (130); and the lifting ring (142) is connected to the anti-fall connection piece (143) via the anti-fall pull rod (141).

7. A deep foundation pit concrete pouring system according to claim 6, characterized in that: The structure of the secondary anti-falling connection device (220) and the structure of the tertiary anti-falling connection device (350) are both the same as the structure of the primary anti-falling connection device (140).

8. A deep foundation pit concrete pouring system according to claim 1, characterized in that: The secondary feed hopper (210) is provided with at least two first discharge pipe joints, and the first discharge pipe joints are detachably connected to the corresponding secondary chute (240) through a flange (500). The secondary feed hopper (210) is provided with a first valve for opening and closing the first discharge pipe joint. The tertiary feed hopper (310) is provided with at least two second discharge pipe joints (320), and the second discharge pipe joints (320) are detachably connected to the corresponding tertiary chute (360) through a flange (500). The tertiary feed hopper (310) is provided with a second valve (330) for opening and closing the second discharge pipe joint (320).

9. A deep foundation pit concrete pouring system according to claim 8, characterized in that: The upper chamber (311) of the tertiary feed hopper (310) is in the shape of a rectangular cube, the lower chamber (312) of the secondary feed hopper (210) is in the shape of an inverted quadrangular pyramid, and at least two of the four side outer walls of the lower chamber (312) of the tertiary feed hopper (310) are provided with the second discharge pipe joints (320).

10. A deep foundation pit concrete pouring system according to claim 9, characterized in that: The four side outer walls of the lower cavity (312) of the three-stage feed hopper (310) are all provided with the second discharge pipe joints (320), and the second valve (330) includes a baffle, which is used to fit the side inner wall of the lower cavity (312) of the three-stage feed hopper (310), and the bottom inner wall of the lower cavity (312) of the three-stage feed hopper (310) is provided with a positioning block (313) for abutting against the baffle.

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