Building group basement pressure relief anti-floating drainage system and construction method

Abstract

The invention belongs to the technical field of basement pressure relief, and particularly relates to a building group basement pressure relief anti-floating drainage system and a construction method. Comprising a well body, the middle of the bottom of the well body is fixedly communicated with a pressure relief pipe, the bottom of the pressure relief pipe is fixedly communicated with a settling barrel, and the periphery of the side face of the settling barrel is evenly and fixedly communicated with a plurality of water inlet pipes; the top of the pressure relief pipe is closed and provided with a contact switch, the side wall, located in the well body, of the pressure relief pipe is evenly and fixedly communicated with a plurality of first water passing pipes, and first water pumps are installed on the first water passing pipes. The side wall of the pressure relief pipe located outside the well body is evenly and fixedly communicated with a plurality of second water passing pipes, and the other ends of the second water passing pipes are fixedly communicated with the bottom of the well body. According to the pressure relief valve, emergency pressure relief can be conducted, and meanwhile the pressure relief mode is automatically adjusted; automatic reverse drainage in the well body can be achieved when the water pressure is small, it is avoided that impurities are accumulated in the well body and difficult to clean in the water pumping link, meanwhile, impurity discharging is rapidly promoted, and blocking is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of basement pressure relief, and in particular relates to a basement pressure relief anti-floating drainage system for a building complex and a construction method. Background Art

[0002] The basement pressure relief and anti-floating drainage system is an engineering technology that actively guides and discharges groundwater to reduce buoyancy and ensure the safety of the basement structure. Its core principle is to introduce the surrounding groundwater into the indoor drainage system through a water relief and pressure relief device (such as a galvanized steel casing with a water filter bag) pre-buried on the side wall or bottom plate of the basement, and use a drainage ditch or a water collection well to discharge the water, thereby lowering the groundwater level and eliminating or reducing the lifting effect of water buoyancy on the basement. The role of this system is mainly reflected in three aspects: first, by actively draining water to reduce buoyancy, avoid structural damage to the basement caused by floating due to water pressure; second, compared with traditional anti-floating anchors or pile foundation solutions, it can significantly reduce the project cost and shorten the construction period; third, by controlling the groundwater level, it can also optimize the structural design of the basement bottom plate and side walls and reduce the risk of water seepage. Its applicable conditions include clay strata with poor permeability, upper stagnant water or areas with low groundwater levels.

[0003] The Chinese patent with application number 202210742528.0 is a basement floor pressure relief, drainage and anti-floating device and construction method; it relates to the field of construction engineering technology, including: a water collection well is fixedly installed inside the middle of the basement floor; a basement side wall is fixedly installed on the left side of the basement floor; a through hole is fixedly installed on the right side of the water collection well; a filter pipe steel pipe is arranged inside the through hole; drainage pipes are arranged on both sides of the water collection well; a submersible drainage pump is arranged at the bottom of the drainage pipe; the beneficial effect is that the basement floor pressure relief, drainage and anti-floating device and construction method make full use of the basement water collection well, facilitate construction, and have no negative impact on the floor structure; the basement water level can be controlled by pre-installing automatic drainage and drainage devices, reducing the difficulty of handling when the subsequent basement floor anti-floating requirements are not met; the set of equipment has a high degree of automation, does not require manual operation, is safe and reliable, and has low maintenance costs.

[0004] When the basement groundwater is depressurized and drained, if the water pressure increases sharply due to an emergency, although the drainage system is draining, it is no longer able to perform rapid pressure relief operations, which may cause damage to the basement structure. At the same time, when dealing with different water pressures, the adjustment method is single and cannot be adjusted automatically, resulting in frequent use of the water pump, resulting in power consumption and life problems; and, after the water pressure decreases, the water in the well body usually needs to be pumped out by a water pump, which is troublesome and laborious, and the impurities inside the well body can easily cause the system to be blocked. Summary of the invention

[0005] In order to address the deficiencies in the prior art, the present invention provides a pressure relief and anti-floating drainage system and a construction method for a basement of a building complex. The present invention can perform emergency pressure relief for increased water pressure in an emergency situation by adjusting the cooperation between a piston and a first water pipe and a second water pipe, and can automatically adjust the pressure relief mode under different water pressure conditions, thereby avoiding the problem of power consumption and life span caused by frequent use of the water pump; the present invention can realize automatic reverse drainage inside the well body when the water pressure is low by adjusting the cooperation between a piston and a reset spring and a limit ring, thereby avoiding the accumulation of impurities in the well body in the pumping link that is difficult to clean, and can quickly promote the discharge of impurities to prevent blockage.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A pressure relief and anti-floating drainage system for a basement of a building complex, comprising a well body, a pressure relief pipe is fixedly connected in the middle of the bottom of the well body, a sedimentation bucket is fixedly connected in the bottom of the pressure relief pipe, and a plurality of water inlet pipes are evenly fixedly connected around the sides of the sedimentation bucket; the top of the pressure relief pipe is closed and a contact switch is installed, a plurality of first water pipes are evenly fixedly connected to the side wall of the pressure relief pipe located inside the well body, and a first water pump is installed on the first water pipe; a plurality of second water pipes are evenly fixedly connected to the side wall of the pressure relief pipe located outside the well body, and the other ends of the second water pipes are fixedly connected to the bottom of the well body;

[0008] A limiting ring is fixedly provided on the inner wall of the connection between the pressure relief pipe and the sedimentation barrel; an adjusting piston is slidably connected to the inner wall of the pressure relief pipe, and the bottom of the adjusting piston is fixedly connected to the inner bottom of the sedimentation barrel through a return spring.

[0009] Furthermore, the first water pipe is a three-way pipe, and both branches of the first water pipe away from the pressure relief pipe are equipped with one-way valves that allow water to enter the well body; a first water pump is installed at the upward branch end of the first water pipe.

[0010] Furthermore, a filter block is installed at the connection point between the water inlet pipe and the sedimentation barrel, and a filter filling layer is arranged outside the water inlet pipe.

[0011] Furthermore, a second water pump is installed inside the well body, and a water outlet of the second water pump is connected to the outside of the basement through a drainage pipe.

[0012] Furthermore, the side wall of the regulating piston is provided with a plurality of water holes, which are interconnected; a one-way valve is installed on the water hole, and the one-way valve allows water to enter the interior of the regulating piston;

[0013] A bottom groove is provided in the middle of the bottom of the regulating piston, and the middle of the bottom groove is communicated with the water through hole through a bottom hole.

[0014] Furthermore, a plurality of sliding holes are evenly opened around the bottom groove, a sliding rod is slidably connected to the sliding hole, a closing disk is fixedly connected to the bottom of the sliding rod, and the bottom of the closing disk is fixedly connected to the reset spring.

[0015] Furthermore, a hinge groove is fixedly provided on the top of the sliding rod, and the hinge groove is hinged to the side wall of the control rod; a pushing plate is provided between the multiple control rods, and the side wall of the pushing plate is correspondingly fixed with multiple sliding grooves, and one end of the control rod is horizontally slidably connected in the groove of the corresponding sliding groove.

[0016] Furthermore, the control rod is an L-shaped rod.

[0017] Furthermore, the bottom of the well body is fixedly connected with an inclined annular groove around its periphery, and the bottom of the inclined annular groove is fixedly connected with the second water pipe.

[0018] The present invention also claims a construction method using the above-mentioned building complex basement pressure relief anti-floating drainage system, comprising the following steps:

[0019] S1. Open a well pit and set up a filter filling layer around the bottom of the well pit;

[0020] S2. Install the sedimentation tank and the pressure relief pipe, and weld and fix the second water pipe to the pressure relief pipe;

[0021] S3, installing the well body on the pressure relief pipe, and welding and fixing the connection between the pressure relief pipe, the second water pipe and the well body inside the well body;

[0022] S4. Weld the first water pipe to the pressure relief pipe in the well body, install the water pump circuit components, and then cast, fill and fix the outside of the well body.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention can not only perform emergency pressure relief for increased water pressure in an emergency situation by cooperating with the adjusting piston and the first water pipe and the second water pipe, but also automatically adjust the pressure relief mode under different water pressure conditions, thereby avoiding the problem of power consumption and life of the water pump caused by frequent use of the water pump; specifically, when the groundwater pressure at the bottom of the basement increases, the water enters the sedimentation barrel from the water inlet pipe and pushes the adjusting piston to move upward inside the pressure relief pipe and pull the reset spring, thereby first connecting the pressure relief pipe with the second water pipe, allowing the water to enter the well body from the sedimentation barrel through the second water pipe to relieve pressure, thereby preventing damage to the building complex structure caused by increased groundwater pressure under the basement of the building complex; when the water pressure increases rapidly in an emergency, the flow rate of the second water pipe can no longer meet the underground The water pressure relief requirement is met. At this time, the sharply increased water pressure forces the regulating piston to continue to move upward inside the pressure relief pipe and pull the reset spring, so that the first water pipe is connected to the pressure relief pipe, and the water enters the well body from the first water pipe to assist in pressure relief, and the purpose of rapid pressure relief is achieved with the cooperation of the first water pipe and the second water pipe; when the pressure cannot be reduced with the cooperation of the first water pipe, the water pressure forces the regulating piston to continue to move upward and pull the reset spring, so that the regulating piston reaches the top of the pressure relief pipe to trigger the contact switch, and the first water pump is controlled to start through the contact switch, so that the first water pump assists in pumping water, thereby achieving rapid pressure reduction; at the same time, through the cooperation of the regulating piston and the pressure relief pipe of the present invention, pressure relief under different pressures can be met, avoiding the problem of power consumption and life span caused by frequent use of the water pump.

[0025] (2) The present invention can realize automatic reverse drainage of the well body when the water pressure is low through the cooperation of the adjusting piston, the return spring and the limit ring, thereby avoiding the accumulation of impurities in the well body during the pumping process and making it difficult to clean them up, and at the same time, quickly promote the discharge of impurities to prevent blockage. Specifically, when the water pressure is high, it will act on the adjusting piston and the closing plate to move the adjusting piston upward. At this time, due to the action of the one-way valve in the adjusting piston, the adjusting piston is a closed whole, thereby realizing the upward movement of the adjusting piston to achieve pressure relief. When the water pressure is low and no pressure relief is required, the return spring of the present invention is used to pull the closing plate downward and disengage from the bottom groove, so that the water pressure in the well body is relieved. The water can be discharged into the water hole and the bottom hole in the regulating piston through the second water pipe, and finally the reverse reflux of the water is realized, so that the water goes back from the water inlet pipe of the sedimentation barrel to the soil, thereby realizing the automatic reverse drainage of the well body when the water pressure is low, avoiding the pumping link. At this time, the impurities in the well body will flow back into the sedimentation barrel, where they will be precipitated and collected, thus avoiding the accumulation of impurities in the well body that is difficult to clean. At the same time, when the closing plate moves downward, the sliding rod slides downward to make the control rod rotate on the hinge groove. During the rotation of the control rod, one end will slide in the sliding groove, and finally drive the push plate to push downward, which can quickly promote the discharge of impurities in the bottom hole and prevent blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a schematic structural diagram of a pressure relief and anti-floating drainage system for a basement of a building complex according to the present invention;

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of a pressure relief and anti-floating drainage system for a basement of a building complex according to the present invention;

[0028] Figure 3 This is a schematic diagram of the dispersed structure of a pressure relief and anti-floating drainage system for a basement of a building complex according to the present invention;

[0029] Figure 4 A schematic diagram of the structure of an adjusting piston of a pressure relief and anti-floating drainage system for a basement of a building complex according to the present invention;

[0030] Figure 5 This is a schematic diagram of the partial structure of a pressure relief and anti-floating drainage system for a building complex basement according to the present invention. Figure 1 ;

[0031] Figure 6 This is a schematic diagram of the partial structure of a pressure relief and anti-floating drainage system for a building complex basement according to the present invention. Figure 2 ;

[0032] Figure 7 The schematic diagram of the operation of the pressure relief and anti-floating drainage system for the basement of a building complex according to the present invention is shown in FIG. Figure 1 ;

[0033] Figure 8 The schematic diagram of the operation of the pressure relief and anti-floating drainage system for the basement of a building complex according to the present invention is shown in FIG. Figure 2 .

[0034] The reference numerals are as follows:

[0035] Well body-100; inclined ring groove-110; sedimentation barrel-200; water inlet pipe-210; limit ring-220; second water pipe-300; second water pump-400; drainage pipe-410; first water pipe-500; first water pump-600; pressure relief pipe-700; contact switch-710; regulating piston-800; return spring-810; water hole-820; bottom groove-830; bottom hole-831; sliding hole-840; closing plate-850; sliding rod-860; hinge groove-861; control rod-870; push plate-880; sliding groove-890. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0037] Although the steps in the present invention are arranged with numbers, they are not used to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" used in this article involves and covers any and all possible combinations of one or more of the associated listed items.

[0038] Example

[0039] like Figures 1 to 8 As shown, a pressure relief and anti-floating drainage system for a basement of a building complex comprises a well body 100, a pressure relief pipe 700 is fixedly connected to the middle of the bottom of the well body 100, a sedimentation barrel 200 is fixedly connected to the bottom of the pressure relief pipe 700, and a plurality of water inlet pipes 210 are evenly fixedly connected to the sides of the sedimentation barrel 200; the top of the pressure relief pipe 700 is closed and a contact switch 710 is installed, a plurality of first water pipes 500 are evenly fixedly connected to the side wall of the pressure relief pipe 700 located inside the well body 100, and a first water pump 600 is installed on the first water pipe 500; a plurality of second water pipes 300 are evenly fixedly connected to the side wall of the pressure relief pipe 700 located outside the well body 100, and the other end of the second water pipe 300 is fixedly connected to the bottom of the well body 100;

[0040] A limiting ring 220 is fixedly provided on the inner wall of the connection between the pressure relief pipe 700 and the sedimentation barrel 200 ; an adjusting piston 800 is slidably connected to the inner wall of the pressure relief pipe 700 , and the bottom of the adjusting piston 800 is fixedly connected to the inner bottom of the sedimentation barrel 200 via a return spring 810 .

[0041] The present invention can not only perform emergency pressure relief for increased water pressure in emergency situations by adjusting the cooperation between the piston 800 and the first water pipe 500 and the second water pipe 300, but also automatically adjust the pressure relief mode under different water pressure conditions, thereby avoiding the problem of power consumption and life span caused by frequent use of the water pump; a detailed description will be given later.

[0042] It is worth noting that the electrical equipment such as the contact switch 710 and the first water pump 600 of the present invention are all powered by an external power supply, which is a conventional setting and will not be described in detail here.

[0043] Furthermore, the first water pipe 500 is a three-way pipe, and one-way valves are installed on the two branches of the first water pipe 500 and away from the pressure relief pipe 700, which allow water to enter the well body 100; the first water pump 600 is installed at the upward branch end of the first water pipe 500.

[0044] In the present invention, when the water pressure at the bottom of the basement increases, water enters the sedimentation barrel 200 from the water inlet pipe 210 and pushes the regulating piston 800 to move upward inside the pressure relief pipe 700 and pulls the reset spring 810, thereby firstly connecting the pressure relief pipe 700 with the second water pipe 300, so that the water enters the well body 100 from the sedimentation barrel 200 through the second water pipe 300 to relieve pressure, thereby preventing the structural damage of the building complex caused by the increase of groundwater pressure under the basement of the building complex; when the water pressure increases rapidly in an emergency, the flow rate of the second water pipe 300 can no longer meet the pressure relief requirement of the groundwater, and at this time the sharply increased water pressure forces the regulating piston 300 to continue to move upward inside the pressure relief pipe 700 and pulls the reset spring 810, so that the first water pipe 500 and the pressure relief pipe 700 are connected. The first water pipe 500 and the second water pipe 300 are connected, and water enters the well body 100 from the first water pipe 500 to assist in pressure relief, and the purpose of rapid pressure relief is achieved with the cooperation of the first water pipe 500 and the second water pipe 300; when the pressure cannot be reduced with the cooperation of the first water pipe 500, the water pressure forces the regulating piston 300 to continue to move upward and pull the reset spring 810, so that the regulating piston 300 reaches the top of the pressure relief pipe 700 to trigger the contact switch 710, and the first water pump 600 is controlled to start through the contact switch 710, so that the first water pump 600 assists in pumping water, thereby achieving rapid pressure relief; at the same time, through the cooperation of the regulating piston 800 and the pressure relief pipe 700 of the present invention, pressure relief under different pressures can be met, avoiding the problem of power consumption and life caused by frequent use of the water pump.

[0045] Furthermore, a filter block is installed at the connection point between the water inlet pipe 210 and the sedimentation barrel 200 , and a filter filling layer is arranged outside the water inlet pipe 210 .

[0046] The filter blocks and filter filling layers prevent underground impurities from entering the system and prevent clogging.

[0047] Furthermore, a second water pump 400 is installed inside the well body 100 , and a water outlet of the second water pump 400 is connected to the outside of the basement through a drainage pipe 410 .

[0048] When the water in the well 100 reaches a critical value, the second water pump 400 can be controlled by the sensing device to pump the water to the outside of the basement through the drainage pipe 410 to prevent excessive water from overflowing and flooding the basement.

[0049] Furthermore, the side wall of the regulating piston 800 is provided with a plurality of water holes 820, and the water holes 820 are interconnected; a one-way valve is installed on the water hole 820, and the one-way valve allows water to enter the inside of the regulating piston 800;

[0050] A bottom groove 830 is provided in the middle of the bottom of the regulating piston 800 , and the middle of the bottom groove 830 is connected to the water through hole 820 through a bottom hole 831 .

[0051] The present invention can achieve automatic reverse drainage inside the well body 100 when the water pressure is low by adjusting the cooperation between the piston 800, the return spring 810 and the limit ring 220, thereby avoiding the accumulation of impurities in the well body 100 during the pumping process and making it difficult to clean them. At the same time, it can quickly promote the discharge of impurities and prevent blockage; a detailed description will be given later.

[0052] Furthermore, a plurality of sliding holes 840 are evenly opened around the bottom groove 830 , and a sliding rod 860 is slidably connected to the sliding hole 840 . The bottom of the sliding rod 860 is fixedly connected to a closing disk 850 , and the bottom of the closing disk 850 is fixedly connected to the reset spring 810 .

[0053] Furthermore, a hinge groove 861 is fixedly provided on the top of the sliding rod 860, and the hinge groove 861 is hinged to the side wall of the control rod 870; a pushing plate 880 is provided between the multiple control rods 870, and the side wall of the pushing plate 880 is correspondingly fixedly provided with multiple sliding grooves 890, and one end of the control rod 870 is horizontally slidably connected in the groove of the corresponding sliding groove 890.

[0054] When the water pressure of the present invention is relatively high, it will act on the regulating piston 800 and the closing disk 850 to move the regulating piston 800 upward. At this time, due to the action of the one-way valve in the regulating piston 800, the regulating piston 800 is a closed whole, so that the upward movement of the regulating piston 800 is controlled by the water pressure to achieve pressure relief; when the water pressure is relatively low and no pressure relief is required, the closing disk 850 is pulled downward and separated from the bottom groove 830 through the reset action of the reset spring 810 of the present invention, so that the water in the well body 100 can be discharged into the water through hole 820 and the bottom hole 831 in the regulating piston 800 through the second water through pipe 300, and finally the reverse reflux of the water is achieved, so that the water is discharged from the sedimentation The water inlet pipe 210 of the barrel 200 penetrates deep into the soil in the reverse direction, thereby realizing automatic reverse drainage inside the well body 100 when the water pressure is relatively low, avoiding the pumping process. At this time, the impurities in the well body 100 will flow back into the sedimentation barrel 200, and will be precipitated and collected in the sedimentation barrel 200, avoiding the accumulation of impurities in the well body 100 and making it difficult to clean. At the same time, when the closing plate 850 moves downward, the sliding rod 860 slides downward to make the control rod 870 rotate on the hinge groove 861. During the rotation of the control rod 870, one end will slide in the sliding groove 890, and finally drive the push plate 880 to push downward, which can quickly promote the discharge of impurities in the bottom hole 831 and prevent blockage.

[0055] Furthermore, the control rod 870 is an L-shaped rod, which facilitates the rotation of the control rod 870 to drive the push plate 880 to move downward.

[0056] Furthermore, the bottom of the well body 100 is fixedly connected to the inclined surface annular groove 110 , and the bottom of the inclined surface annular groove 110 is fixedly connected to the second water pipe 300 .

[0057] The inclined annular groove 110 facilitates the guidance of impurities and promotes the discharge of impurities.

[0058] A construction method using the above-mentioned building complex basement pressure relief anti-floating drainage system comprises the following steps:

[0059] S1. Open a well pit and set up a filter filling layer around the bottom of the well pit;

[0060] S2, installing the sedimentation tank 200 and the pressure relief pipe 700, and welding and fixing the second water pipe 300 and the pressure relief pipe 700;

[0061] S3, the well body 100 is installed on the pressure relief pipe 700, and the connection between the pressure relief pipe 700, the second water pipe 300 and the well body 100 is welded and fixed inside the well body;

[0062] S4. Weld the first water pipe 500 to the pressure relief pipe 700 in the well body 100, install the water pump circuit components, and then cast, fill and fix the outside of the well body 100.

[0063] By using the construction method of the present invention, the system can be quickly installed in steps, thus avoiding the equipment from significantly affecting the progress of the construction.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and changes without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A pressure relief and anti-floating drainage system for basements of building complexes, characterized in that: The well body (100) comprises a well body (100), wherein a pressure relief pipe (700) is fixedly connected in the middle of the bottom of the well body (100), a sedimentation bucket (200) is fixedly connected in the bottom of the pressure relief pipe (700), and a plurality of water inlet pipes (210) are evenly fixedly connected around the sides of the sedimentation bucket (200); the top of the pressure relief pipe (700) is closed and a contact switch (710) is installed; a plurality of first water pipes (500) are evenly fixedly connected to the side wall of the pressure relief pipe (700) located inside the well body (100), and a first water pump (600) is installed on the first water pipe (500); a plurality of second water pipes (300) are evenly fixedly connected to the side wall of the pressure relief pipe (700) located outside the well body (100), and the other end of the second water pipe (300) is fixedly connected to the bottom of the well body (100); A limiting ring (220) is fixedly provided on the inner wall of the connection between the pressure relief pipe (700) and the sedimentation barrel (200); an adjusting piston (800) is slidably connected to the inner wall of the pressure relief pipe (700), and the bottom of the adjusting piston (800) is fixedly connected to the inner bottom of the sedimentation barrel (200) via a return spring (810).

2. According to claim 1, a pressure relief and anti-floating drainage system for basements of building complexes is characterized by: The first water pipe (500) is a three-way pipe, and one-way valves are installed on the two branches of the first water pipe (500) away from the pressure relief pipe (700), and the one-way valves allow water to enter the well body (100); a first water pump (600) is installed at the end of the branch facing upward of the first water pipe (500).

3. According to claim 1, a pressure relief and anti-floating drainage system for basements of building complexes is characterized by: A filter block is installed at the connection point between the water inlet pipe (210) and the sedimentation barrel (200), and a filter filling layer is arranged outside the water inlet pipe (210).

4. The pressure relief and anti-floating drainage system for basements of building complexes according to claim 1 is characterized in that: A second water pump (400) is installed inside the well body (100), and a water outlet of the second water pump (400) is connected to the outside of the basement through a drainage pipe (410).

5. According to claim 1, a pressure relief and anti-floating drainage system for basements of building complexes is characterized by: The side wall of the regulating piston (800) is provided with a plurality of water holes (820), and the water holes (820) are interconnected; a one-way valve is installed on the water hole (820), and the one-way valve allows water to enter the interior of the regulating piston (800); A bottom groove (830) is provided in the middle of the bottom of the regulating piston (800), and the middle of the bottom groove (830) is connected to the water through hole (820) through a bottom hole (831).

6. The pressure relief and anti-floating drainage system for basements of building complexes according to claim 5, characterized in that: A plurality of sliding holes (840) are evenly arranged around the bottom groove (830), a sliding rod (860) is slidably connected to the sliding hole (840), a closing disk (850) is fixedly connected to the bottom of the sliding rod (860), and the bottom of the closing disk (850) is fixedly connected to the return spring (810).

7. The pressure relief and anti-floating drainage system for basements of building complexes according to claim 6, characterized in that: A hinge groove (861) is fixedly provided on the top of the slide rod (860), and the hinge groove (861) is hinged to the side wall of the control rod (870); a push plate (880) is provided between the multiple control rods (870), and the side wall of the push plate (880) is correspondingly fixedly provided with multiple sliding grooves (890), and one end of the control rod (870) is horizontally slidably connected in the groove of the corresponding sliding groove (890).

8. The pressure relief and anti-floating drainage system for basements of building complexes according to claim 7, characterized in that: The control rod (870) is an L-shaped rod.

9. The pressure relief and anti-floating drainage system for basements of building complexes according to claim 1, characterized in that: The bottom of the well body (100) is fixedly connected to an inclined surface annular groove (110) around its periphery, and the bottom of the inclined surface annular groove (110) is fixedly connected to the second water pipe (300).

10. A construction method using the pressure relief and anti-floating drainage system for basements of a building complex as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1. Open a well pit and set up a filter filling layer around the bottom of the well pit; S2, installing the sedimentation barrel (200) and the pressure relief pipe (700), and welding and fixing the second water pipe (300) and the pressure relief pipe (700); S3, inserting the well body (100) into the pressure relief pipe (700), and welding and fixing the connection between the pressure relief pipe (700), the second water pipe (300) and the well body (100) inside the well body; S4. Weld the first water pipe (500) to the pressure relief pipe (700) in the well body (100), install the water pump circuit components, and then cast, fill and fix the outside of the well body (100).

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