Improved foundation raft anti-floating dewatering well water stop assembly

Abstract

The utility model relates to an improved foundation raft anti-floating dewatering well water stop assembly which comprises a water pump (5) and further comprises a water stop mechanism (1), and a plurality of water inlet holes (15) are annularly formed in the lower portion of the water stop mechanism (1) in a penetrating mode. The water retaining strips (2) are connected with the water inlet holes (15) in a one-to-one correspondence manner; the water inlet filter valve (4) is mounted in the water stop mechanism (1) in a sliding manner; wherein the water pump (5) is located in the water stop mechanism (1) and arranged above the water inlet filter valve (4), and the water pump (5) and the water inlet filter valve (4) are matched with each other to complete the work that the water inlet filter valve (4) automatically starts water inlet and stops water inlet. The device is simple in structure, high in practicability and capable of saving time and labor, reducing construction cost and improving construction efficiency; and meanwhile, the quality problem caused by segregation of concrete due to much water can be prevented, secondary drilling, glue injection and sealing are not needed, and the stability of construction quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit dewatering well construction, in particular to an improved foundation raft plate anti-floating dewatering well water-stopping component. Background Art

[0002] Generally speaking, it is necessary to set up precipitation wells in the foundation pit of a building construction project. Because during the excavation of the foundation pit, groundwater will continuously seep into the pit from the surrounding area of the foundation pit. The precipitation wells can collect groundwater to achieve precipitation in the foundation pit, ensuring that the foundation pit is constructed under dry conditions, thereby preventing quality problems such as instability of the foundation pit slope.

[0003] At present, the design and construction of foundation pit support often ignore the problem of overall anti-floating of the structure during the stage of foundation pit backfilling and before the main anti-floating deadweight configuration. This is because the precipitation outside the foundation pit stops during the foundation pit backfilling, and the foundation pit backfilling is not completed at this time. As a result, some projects have experienced engineering accidents such as failure of basement anti-floating damage during heavy rain in the above-mentioned stage. In short, it is often very inconvenient.

[0004] After searching, the Chinese utility model patent with patent announcement number CN219118205U discloses a water-stop sleeve for sealing a raft foundation dewatering well, comprising a steel pipe main body, which is vertically inserted into the dewatering well, and the outer diameter of the steel pipe main body is 100 mm smaller than the width of the dewatering well. The outer wall of the steel pipe main body is provided with a first water-stop ring and a second water-stop ring, the first water-stop ring is located in the middle of the steel pipe main body, the width of the first water-stop ring is not less than 100 mm, the second water-stop ring is located below the first water-stop ring, and the inner wall of the steel pipe main body is provided with a third water-stop ring, the third water-stop ring and the first water-stop ring are located at the same height and the width of the third water-stop ring is smaller than the width of the first water-stop ring. Although the water-stop sleeve of the above-mentioned design structure is provided with a first water-stop ring and a second water-stop ring on the outside of the steel pipe body, thereby adding a water-stop guarantee at the cushion layer, and a third water-stop ring is added to the inner wall of the steel pipe body, thereby adding a water-stop guarantee on the inside of the pipe, thereby enhancing the sealing and water-stopping effect of the water-stop sleeve and ensuring the quality of the foundation pit bottom plate, the patent still has the following disadvantages:

[0005] On the one hand, the technical problem is that the lower end of the water-stop sleeve recorded in the patent is not closed. The water-stop sleeve is inserted into the soil below the raft. During precipitation, a large amount of mud and sand will flow in. These mud and sand will enter the water pump and block the pumping pipe. It takes a lot of manpower and material costs to clean the mud and sand. The mud and sand will cause more serious wear and tear on the water pump that works for a long time. After a period of time, the water pump will be damaged.

[0006] On the other hand, there are still technical problems as follows: After the foundation pit construction is completed, it is necessary to seal the concrete poured into the dewatering well. If there is still muddy water in the dewatering well or water is still seeping around at this time, the water in the unconsolidated concrete poured into the well will seep out, resulting in segregation of the concrete in the well due to excessive water. When the concrete is formed, it will crack and leak water, and it is necessary to drill holes again and inject glue for sealing, causing a waste of a large amount of time and resources and being unfavorable for the normal progress of the construction period.

[0007] Based on this, it is crucial to develop an improved anti-floating dewatering well water stop pipe for the foundation raft with a simple structure, convenient operation and no need for secondary hole drilling and glue injection for sealing to solve the above technical problems. Summary of the Invention

[0008] In view of the many defects and deficiencies in the above-mentioned background technology, the utility model has made improvements and innovations. The purpose is to provide an improved anti-floating dewatering well water stop component for the foundation raft with a simple structure and strong practicability. An intake filter valve is placed inside the water stop mechanism, which can control the opening and closing of the intake filter valve by using the self-weight of the water pump. At the same time, the lower part of the water stop mechanism can filter sediment, reduce the sediment content in the muddy water, and reduce the blockage and wear of the sediment on the water pump, so as to save a large amount of manpower, material resources and time costs, ensure the normal progress of the construction period, and improve the construction efficiency.

[0009] Another object of the invention of the utility model is that when the dewatering well is sealed later, only the water pump needs to be taken out to pour concrete into the dewatering well. The intake filter valve left in the dewatering well can isolate the contact between the concrete and the remaining muddy water in the well, thus preventing the quality problems caused by segregation of the concrete due to excessive water and eliminating the need for secondary hole drilling and glue injection for sealing, ensuring the stability of the construction quality.

[0010] To solve the above problems and achieve the above-mentioned invention purposes, an improved anti-floating dewatering well water stop component for the foundation raft of the utility model is realized by adopting the following design structure and the following technical solutions:

[0011] As an improvement of an improved anti-floating dewatering well water stop component for the foundation raft of the utility model, it includes a water pump (5), and further includes:

[0012] A water stop mechanism (1), a plurality of water inlet holes (15) are circumferentially and penetratingly opened at the lower part of the water stop mechanism (1); a water retaining strip (2), the water retaining strip (2) is connected to the water inlet holes (15) one by one; an intake filter valve (4), the intake filter valve (4) is slidably installed inside the water stop mechanism (1); wherein, the water pump (5) is located inside the water stop mechanism (1), and the water pump (5) is arranged above the intake filter valve (4), and the water pump (5) and the intake filter valve (4) cooperate with each other to complete the work of automatically opening and closing the intake of the intake filter valve (4).

[0013] As an improvement of the above-mentioned utility model, it further includes a plurality of connecting members (3), and the plurality of connecting members (3) are respectively inclined and connected to the outer wall of the water stop mechanism (1).

[0014] As a further improvement of the above-mentioned utility model, the connecting member (3) is in a rod-like structure or a rod-like structure with a conical non-connecting end, and the connecting member (3) is spirally and inclinedly connected to the outer wall of the water stop mechanism (1) above and / or below the water inlet hole (15).

[0015] As a further improvement of the above-mentioned utility model, the water stop mechanism (1) includes a water stop pipe main body (11), and the water stop pipe main body (11) includes a connecting pipe (111) and a connecting head (112) in a conical shape hermetically connected below the connecting pipe (111). The connecting pipe (111) is a tubular member with openings at both the upper and lower ends. Among them, a plurality of rectangular water inlet holes (15) are uniformly and penetratingly opened in the lower part of the water stop pipe main body (11).

[0016] As a further improvement of the above-mentioned utility model, the water stop mechanism (1) further includes:

[0017] A first water stop ring (12), and the first water stop ring (12) is welded and connected to the outer wall surface of the upper end of the water stop pipe main body (11);

[0018] A second water stop ring (13), and the second water stop ring (13) is welded and connected to the outer wall surface of the water stop pipe main body (11) below the first water stop ring (12);

[0019] A third water stop ring (14), and the third water stop ring (14) is welded and connected inside the water stop pipe main body (11), and the third water stop ring (14) is at the same height as the first water stop ring (12); among them, the widths of the first water stop ring (12) and the second water stop ring (13) are the same.

[0020] As a further improvement of the above-mentioned utility model, the water blocking strip (2) is connected to the water stop pipe main body (11) directly above the water inlet hole (15) for the function of filtering sediment. As a further improvement of the above-mentioned utility model, the water inlet filter valve (4) includes: a valve seat (41), and a valve seat installation opening is penetratingly opened in the middle of the top end of the valve seat (41); an installation sleeve (42), and the lower end of the installation sleeve (42) is connected inside the valve seat installation opening; a valve core (43), and the valve core (43) is slidably connected inside the valve seat (41);

[0021] A top cover member (44), and the top cover member (44) is slidably sleeved inside the upper part of the installation sleeve (42); a spring (45), and the spring (45) is sleeved inside the installation sleeve (42);

[0022] Among them, the upper part of the valve core (43) passes through the spring (45) and is connected to the top cover part (44).

[0023] As a further improvement of the above-mentioned utility model, the valve seat (41) is integrally a cylindrical structure with openings at both ends and a hollow interior, and the valve seat installation opening at the upper end of the valve seat (41) is much smaller than the opening at the lower end of the valve seat (41). A plurality of water outlet holes (411) are also circumferentially and penetratingly provided around the valve seat installation opening on the upper end surface of the valve seat (41).

[0024] As a further improvement of the above-mentioned utility model, the installation sleeve (42) is integrally a tubular structure with openings at both ends and a hollow interior, and the opening at the upper end of the installation sleeve (42) is larger than the opening at the lower end of the installation sleeve (42);

[0025] The valve core (43) includes:

[0026] A valve cover (431), the valve cover (431) is integrally a circular plate-like member, and the valve cover (431) is slidably connected to the inner wall of the valve seat (41);

[0027] A valve stem (432), one end of the valve stem (432) is connected to the center position of one end face of the valve cover (431);

[0028] A threaded rod (433), the threaded rod (433) is connected to the middle of the other end of the valve stem (432); among them, the diameter of the valve stem (432) is larger than the diameter of the threaded rod, and the diameter of the valve stem (432) is slightly smaller than the diameter of the valve seat installation opening.

[0029] As a further improvement of the above-mentioned utility model, the top cover part (44) includes: a top cover (441), an internal threaded section adapted to the threaded rod (433) is provided in the middle of the top cover (441), the top cover (441) is threadedly connected to the threaded rod (433), and the top cover (441) is used to support the placement of the water pump (5);

[0030] A connecting sleeve (442), the upper end of the connecting sleeve (442) is connected to the lower part of the top cover (441), the lower part of the connecting sleeve (442) is slidably connected in the installation sleeve (42), the outer diameter of the connecting sleeve (442) is smaller than the outer diameter of the top cover (441), and the outer diameter of the connecting sleeve (442) is slightly smaller than the inner diameter of the installation sleeve (42);

[0031] The spring (45), the upper end of the spring (45) is connected to the top cover (441), and the lower end of the spring (45) is connected to the end face of the lower end opening of the installation sleeve (42).

[0032] The working principle is as follows: when in use, the operator first places the water inlet filter valve (4) inside the water stop mechanism (1), and then vertically places the water pump (5) on the top cover (441) of the water inlet filter valve (4), and uses the deadweight of the water pump (5) to compress the spring (45) provided inside to realize the opening of the water inlet filter valve (4); when the water pump (5) is working, the water inlet filter valve (4) can automatically drop under the pressure of the water pump (5) as the muddy water level inside the water stop mechanism (1) changes, thereby completely pumping out the muddy water inside the water stop mechanism (1 ... When the water mechanism (1) needs to be sealed by pouring concrete in the later stage, it is only necessary to lift the water pump (5) upwards, and the spring (45) of the water inlet filter valve (4) will automatically reset when it loses pressure. Under the elastic action of the spring (45), the top cover (441) is pushed upwards to move upwards, and then the top cover (441) drives the valve stem (432) to pull the valve cover (431) upwards, thereby driving the valve cover (431) back to the cavity of the valve seat (41). At this time, the water inlet filter valve (4) is in a closed state, and the muddy water below the water inlet filter valve (4) is cut off.

[0033] Compared with the prior art, the beneficial effects of the present invention are:

[0034] 1. The lower end surface of the water-stop mechanism (1) of the utility model is in a closed conical shape, which can better prevent the mud and sand at the bottom from entering the interior of the water-stop pipe body (11). When the water-stop pipe body (11) is inserted into the soil, it can also play a good guiding role, and is more convenient, time-saving and labor-saving.

[0035] 2. The water inlet hole (15) at the lower part of the water stop mechanism (1) of the utility model is in the shape of an elongated strip, and a water retaining strip (2) in the shape of a "concave" or "匚" is connected above the water inlet hole (15). The elongated water inlet hole (15) further blocks the passage of mud and sand. The water retaining strip is integrally formed with the water stop pipe body (11), has a high friction coefficient and is not easily damaged, thereby ensuring that the water stop pipe body (11) can be placed in the soil for a long time.

[0036] 3. The water inlet on both sides of the utility model is connected with the water retaining bar (2), which has a certain water filtering effect to a certain extent. This water inlet method has a great advantage over the circular water inlet method. The water inlet is on both sides of the water retaining bar (2), which is not easily blocked by mud and sand, and also has a water filtering effect.

[0037] 4. The several connecting pieces (3) provided in the present invention are respectively spirally and obliquely connected to the outer wall of the water stop mechanism (1) above and / or below the water inlet hole (15), which can further enhance the adhesion between the water stop pipe body (11) and the soil.

[0038] 5. When the water inlet filter valve designed by the present utility model is located alone inside the water stop mechanism, it remains in the closed state. When water needs to be pumped outwards, simply place the water pump vertically on the top of the water inlet filter valve, and the water inlet function can be opened by utilizing the self-weight pressure of the water pump. After the pumping is completed, just lift the water pump upwards, and the water inlet filter valve can automatically return to the closed state. The opening and closing operations of the water inlet filter valve are simple and can be completed by a single person without the support of other staff or other equipment.

[0039] 6. When the water inlet filter valve designed by the present utility model is left inside the water stop mechanism during the concrete pouring and sealing treatment in the later stage of the project, it can separate the concrete from the remaining muddy water inside the water stop mechanism, thereby avoiding the direct contact between the concrete and the muddy water, preventing the segregation of the concrete due to excessive moisture, ensuring the project quality, and eliminating the quality problem of secondary drilling and glue injection for sealing after the concrete solidifies. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The following further elaborates on the specific embodiments of the present utility model in conjunction with the drawings, where:

[0041] Figure 1 is one of the usage state diagrams of the present utility model;

[0042] Figure 2 is the second usage state diagram of the present utility model;

[0043] Figure 3 is the third usage state diagram of the present utility model;

[0044] Figure 4 is one of the usage state diagrams of the water inlet filter valve (4) component of the present utility model;

[0045] Figure 5 is the second usage state diagram of the water inlet filter valve (4) component of the present utility model;

[0046] Figure 6 is the overall structure schematic diagram of the present utility model;

[0047] Figure 7 is the sectional view of the present utility model;

[0048] Figure 8 is the front view of the present utility model;

[0049] Figure 9 is the present utility model Figure 8 A-A sectional structure schematic diagram

[0050] Figure 10 is the overall structure schematic diagram of the water inlet filter valve (4) component of the present utility model;

[0051] Figure 11 It is a cross-sectional view of the water inlet filtering valve (4) component of the present utility model;

[0052] Figure 12 It is an exploded view of the water inlet filtering valve (4) component of the present utility model;

[0053] Among them, the reference numerals in the figure: 1 - water stop mechanism, 11 - water stop pipe main body, 111 - connecting pipe, 112 - connecting head, 12 - first water stop ring, 13 - second water stop ring, 14 - third water stop ring, 15 - water inlet hole;

[0054] 2 - water retaining strip;

[0055] 3 - connecting piece;

[0056] 4 - water inlet filtering valve, 41 - valve seat, 411 - water outlet hole, 42 - mounting sleeve, 43 - valve core, 431 - valve cover, 432 - valve rod, 433 - threaded rod, 44 - top cover part, 441 - top cover, 442 - connecting sleeve, 45 - spring;

[0057] 5 - water pump;

[0058] 6 - raft slab;

[0059] 7 - cushion layer. Specific implementation mode

[0060] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the technical solutions of the present utility model will be further described in detail below in conjunction with the attached drawings and specific implementation modes. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and embodiments.

[0061] As shown in the attached drawings of the specification Figure 1 to the attached drawings of the specification Figure 1 An improved anti-floating dewatering well water stop assembly for a foundation raft slab, including a water pump 5, further comprising:

[0062] A water stop mechanism 1, the lower part of the water stop mechanism 1 is circumferentially and throughly provided with a plurality of water inlet holes 15;

[0063] A water retaining strip 2, the water retaining strip 2 is connected to the water inlet holes 15 in one-to-one correspondence;

[0064] A water inlet filtering valve 4, the water inlet filtering valve 4 is slidably installed inside the water stop mechanism 1;

[0065] Among them, the water pump 5 is located inside the water stop mechanism 1, and the water pump 5 is arranged above the water inlet filtering valve 4. The water pump 5 and the water inlet filtering valve 4 cooperate with each other to complete the work of automatically opening and closing the water inlet of the water inlet filtering valve 4.

[0066] Furthermore, as Figure 9 shown, it further includes several connecting members 3, and the several connecting members 3 are respectively obliquely connected to the outer wall of the water stop mechanism 1.

[0067] Specifically, as Figure 8 shown, the connecting member 3 is a rod-shaped structure or a rod-shaped structure with a conical non-connecting end, and the connecting member 3 is spirally and obliquely connected to the outer wall of the water stop mechanism 1 above and / or below the water inlet hole 15.

[0068] In the present utility model, the connecting member 3 is used to enhance the adhesion between the main body 11 of the water stop pipe and the soil.

[0069] Furthermore, as Figure 7 and Figure 8 shown, the water stop mechanism 1 includes a main body 11 of the water stop pipe. The main body 11 of the water stop pipe includes a connecting pipe 111 and a connecting head 112 with a conical shape hermetically connected below the connecting pipe 111. The connecting pipe 111 is a tubular member with openings at both the upper and lower ends. Among them, a plurality of rectangular water inlet holes 15 are uniformly and penetratively formed in the lower part of the main body 11 of the water stop pipe.

[0070] Furthermore, as Figure 7 shown, the water stop mechanism 1 further includes:

[0071] A first water stop ring 12, which is welded and connected to the outer wall surface of the upper end of the main body 11 of the water stop pipe;

[0072] [[ID=,29]]A second water stop ring 13, which is welded and connected to the outer wall surface of the main body 11 of the water stop pipe below the first water stop ring 12;

[0073] A third water stop ring 14, which is welded and connected inside the main body 11 of the water stop pipe, and the third water stop ring 14 is at the same height as the first water stop ring 12;

[0074] Among them, the first water stop ring 12 and the second water stop ring 13 have the same width.

[0075] Specifically, as Figure 7 shown, the water retaining strip 2 is connected to the main body 11 of the water stop pipe directly above the water inlet hole 15 and is used for filtering sediment.

[0076] In the present utility model, after the water retaining strip 2 and the water inlet hole 15 are connected in one-to-one correspondence, a water inlet method with water inlet on both sides of the water retaining strip 2 is formed, which plays a certain water filtering effect to a certain extent. This water inlet method has great advantages over the circular water inlet method. The water inlets are on both sides of the water retaining strip 2, which is not easily blocked by sediment and also plays a water filtering effect in sandy soil with relatively good water permeability.

[0077] Furthermore, as Figures 10 to 12As shown, the water inlet filter valve 4 includes:

[0078] A valve seat 41, with a valve seat installation opening penetrating through the middle of the top end of the valve seat 41;

[0079] An installation sleeve 42, the lower end of the installation sleeve 42 being connected within the valve seat installation opening;

[0080] A valve core 43, the valve core 43 being slidably connected within the valve seat 41;

[0081] A top cover member 44, the top cover member 44 being slidably sleeved within the upper part of the installation sleeve 42;

[0082] A spring 45, the spring 45 being sleeved within the installation sleeve 42;

[0083] Among them, the upper part of the valve core 43 passes through the spring 45 and is connected to the top cover member 44.

[0084] Specifically, as Figure 12 shown, the valve seat 41 is integrally a cylindrical structure with openings at both ends and a hollow interior, and the valve seat installation opening at the upper end of the valve seat 41 is much smaller than the opening at the lower end of the valve seat 41. A plurality of water outlet holes 411 are also circumferentially and penetratingly provided around the valve seat installation opening on the upper end surface of the valve seat 41.

[0085] Specifically, as Figure 12 shown, the installation sleeve 42 is integrally a tubular structure with openings at both ends and a hollow interior, and the upper opening of the installation sleeve 42 is larger than the lower opening of the installation sleeve 42;

[0086] The valve core 43 includes:

[0087] A valve cover 431, the valve cover 431 being integrally a circular plate-like component, and the valve cover 431 being slidably connected to the inner wall of the valve seat 41;

[0088] A valve stem 432, one end of the valve stem 432 being connected to the center position of one end face of the valve cover 431;

[0089] A threaded rod 433, the threaded rod 433 being connected to the middle of the other end of the valve stem 432;

[0090] Among them, the diameter of the valve stem 432 is larger than that of the threaded rod, and the diameter of the valve stem 432 is slightly smaller than the diameter of the valve seat installation opening.

[0091] In the present utility model, the diameter of the valve cover 431 is the same as the inner diameter of the opening at the lower end of the valve seat 41.

[0092] Specifically, as Figure 12As shown in the figure, the top cover member 44 includes: a top cover 441, in the middle of the top cover 441, there is an internal thread section adapted to the threaded rod 433, the top cover 441 is threadedly connected to the threaded rod 433, and the top cover 441 is used to support the placement of the water pump 5;

[0093] A connecting sleeve 442, the upper end of the connecting sleeve 442 is connected to the lower part of the top cover 441, the lower part of the connecting sleeve 442 is slidably connected within the mounting sleeve 42, the outer diameter of the connecting sleeve 442 is smaller than the outer diameter of the top cover 441, and the outer diameter of the connecting sleeve 442 is slightly smaller than the inner diameter of the mounting sleeve 42;

[0094] The spring 45, the upper end of the spring 45 is connected to the top cover 441, and the lower end of the spring 45 is connected to the opening end face at the lower end of the mounting sleeve 42.

[0095] In the present utility model, the spring 45 is sleeved within the mounting sleeve 42 and the connecting sleeve 442.

[0096] In summary, a more specific embodiment of the present utility model is:

[0097] Before using an improved type of anti-floating dewatering well water-stop assembly for a foundation raft with the above design structure, it needs to be fabricated and installed for standby.

[0098] The specific usage steps are as follows:

[0099] During use, the bottom end of the water-stop mechanism 1 is closed in a conical shape. The operator first passes the water-stop mechanism 1 through the raft 6 and the cushion layer 7 in sequence and then inserts it into the designated dewatering well. The connecting head 112 is in a conical shape and has a guiding effect when inserted into the soil. Multiple long strip-shaped water inlet holes 15 are provided at the lower part of the water-stop pipe main body 11. The long strip-shaped water-blocking strips 2 used in cooperation with the water inlet holes 15 can effectively filter the sediment in the muddy water. Multiple conical connecting members 3 are welded on the outer surface of the water-stop mechanism 1. The conical steel bars of the connecting members 3 are arranged in a spiral and inclined manner, strengthening the adhesion between the water-stop mechanism 1 and the soil;

[0100] The operator slides the water inlet filter valve 4 into the water stop mechanism 1, and then places the water pump 5 vertically on the top cover 441 at the top of the water inlet filter valve 4. When the weight of the water pump 5 acts on the top cover 441, the top cover 441 pushes the valve stem 432 downward to slide and compresses the spring 45, thereby driving the valve cover 431 to slide downward and out of the cavity of the valve seat 41. At this time, the water inlet filter valve 4 is in the open state, and the muddy water below the water inlet filter valve 4 can enter the cavity of the valve seat 41 and enter the top of the water inlet filter valve 4 through several water outlet holes 411. The water pump 5 is started to pump out the muddy water. The water inlet filter valve 4 is in the open state. Under the pressure of the water pump 5, it can automatically drop as the mud and water level inside the water-stop mechanism 1 changes, thereby pumping out all the mud and water inside the water-stop mechanism 1; when the water-stop mechanism 1 needs to be sealed with concrete in the later stage, it is only necessary to lift the water pump 5 upward, and the spring 45 of the water inlet filter valve 4 will automatically reset when it loses pressure, and push the top cover 441 upward under the elastic action of the spring 45, and then the top cover 441 drives the valve stem 432 to pull the valve cover 431 upward, thereby driving the valve cover 431 back to the cavity of the valve seat 41. At this time, the water inlet filter valve 4 is in a closed state, and the mud and water below the water inlet filter valve 4 is cut off.

[0101] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and does not constitute any other limitation to the present invention. Any person skilled in the art may utilize the above-disclosed technical content to modify or remodel the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall still fall within the scope of protection of the present invention.

Claims

1. An improved foundation raft anti-floating dewatering well water-stop assembly, comprising a water pump (5), characterized in that: Also includes: A water-stop mechanism (1), wherein a plurality of water inlet holes (15) are formed in a circumferential direction through the lower portion of the water-stop mechanism (1); A water retaining strip (2), the water retaining strip (2) is connected to the water inlet hole (15) in a one-to-one correspondence; A water inlet filter valve (4), the water inlet filter valve (4) is slidably mounted inside the water stop mechanism (1); The water pump (5) is located inside the water stop mechanism (1), and the water pump (5) is arranged above the water inlet filter valve (4). The water pump (5) and the water inlet filter valve (4) cooperate with each other to complete the work of automatically opening and closing the water inlet of the water inlet filter valve (4).

2. The improved foundation raft anti-floating dewatering well water-stop assembly according to claim 1 is characterized in that: It also includes a plurality of connecting members (3), which are respectively connected obliquely to the outer wall of the water-stopping mechanism (1).

3. The improved foundation raft anti-floating dewatering well water-stop assembly according to claim 2 is characterized in that: The connecting member (3) is a rod-shaped structure or a rod-shaped structure with a conical non-connecting end. The connecting member (3) is spirally and obliquely connected to the outer wall of the water stop mechanism (1) above and / or below the water inlet hole (15).

4. The improved foundation raft anti-floating dewatering well water-stop assembly according to claim 1 is characterized in that: The water-stopping mechanism (1) comprises a water-stopping pipe body (11), the water-stopping pipe body (11) comprising a connecting pipe (111) and a conical connecting head (112) sealed and connected to the bottom of the connecting pipe (111), the connecting pipe (111) being a tubular member with both upper and lower ends open, wherein a plurality of rectangular water inlet holes (15) are uniformly opened through the lower portion of the water-stopping pipe body (11).

5. The improved foundation raft anti-floating dewatering well water-stop assembly according to claim 1 or 4, characterized in that: The water-stopping mechanism (1) further comprises: A first water stop ring (12), the first water stop ring (12) is welded to the outer wall surface of the upper end of the water stop pipe body (11); A second water stop ring (13), the second water stop ring (13) is welded to the outer wall surface of the water stop pipe body (11) below the first water stop ring (12); A third water stop ring (14), the third water stop ring (14) is welded to the inside of the water stop pipe body (11), and the third water stop ring (14) and the first water stop ring (12) are located at the same height; The first water stop ring (12) and the second water stop ring (13) have the same width.

6. The improved foundation raft anti-floating dewatering well water-stop assembly according to claim 1 is characterized in that: The water retaining strip (2) is connected to the water stop pipe body (11) just above the water inlet hole (15) and is used to filter sediment.

7. The improved foundation raft anti-floating dewatering well water-stop assembly according to claim 1 is characterized in that: The water inlet filter valve (4) comprises: A valve seat (41) is provided with a valve seat installation opening at the middle of the top end of the valve seat (41); An installation sleeve (42), wherein the lower end of the installation sleeve (42) is connected to the valve seat installation opening; A valve core (43) is slidably connected to the valve seat (41); A top cover (44) is slidably sleeved on an upper portion of the mounting sleeve (42); A spring (45), wherein the spring (45) is sleeved in the mounting sleeve (42); The upper portion of the valve core (43) passes through the spring (45) and is connected to the top cover (44).

8. The improved foundation raft anti-floating dewatering well water-stop assembly according to claim 7, characterized in that: The valve seat (41) is a cylindrical structure with openings at both ends and a hollow interior, and the valve seat installation opening at the upper end of the valve seat (41) is much smaller than the opening at the lower end of the valve seat (41). The upper end surface of the valve seat (41) is also provided with a plurality of water outlet holes (411) extending in a circumferential direction around the valve seat installation opening.

9. The improved foundation raft anti-floating dewatering well water-stop assembly according to claim 7, characterized in that: The mounting sleeve (42) is in the form of a tubular structure with both ends open and the interior hollow, and the upper opening of the mounting sleeve (42) is larger than the lower opening of the mounting sleeve (42); The valve core (43) comprises: The valve cover (431) is a circular plate-shaped member as a whole, and the valve cover (431) is slidably connected to the inner wall of the valve seat (41); A valve stem (432), one end of which is connected to the center of one end surface of the valve cover (431); A threaded rod (433), the threaded rod (433) is connected to the middle portion of the other end of the valve stem (432); The diameter of the valve stem (432) is larger than the diameter of the threaded rod, and the diameter of the valve stem (432) is slightly smaller than the diameter of the valve seat installation opening.

10. The improved foundation raft anti-floating dewatering well water-stop assembly according to claim 7, characterized in that: The top cover (44) comprises: A top cover (441) is provided in the middle of the top cover (441) with an internal thread section adapted to the threaded rod (433), the top cover (441) is threadedly connected to the threaded rod (433), and the top cover (441) is used to support the placement of the water pump (5); A connecting sleeve (442), wherein the upper end of the connecting sleeve (442) is connected to the lower portion of the top cover (441), and the lower portion of the connecting sleeve (442) is slidably connected to the inside of the mounting sleeve (42), and the outer diameter of the connecting sleeve (442) is smaller than the outer diameter of the top cover (441), and the outer diameter of the connecting sleeve (442) is slightly smaller than the inner diameter of the mounting sleeve (42); The upper end of the spring (45) is connected to the top cover (441), and the lower end of the spring (45) is connected to the lower open end surface of the mounting sleeve (42).

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