Foundation pit dewatering tube well

Abstract

The utility model relates to the technical field of building construction equipment, in particular to a foundation pit dewatering tube well which comprises a plurality of sets of well tubes and filter tubes at the bottommost portions of the well tubes, the tops of the well tubes extend to form inserting rings, inserting grooves matched with the inserting rings are formed in the lower ends of the well tubes, and fixing assemblies used for fixing the well tubes are arranged on the inserting rings. And the filter pipe is fixedly connected to the bottom of the lowermost well casing. During construction, firstly, a placed hole is excavated in the selected position of a foundation pit, the well pipes are spliced according to the actual depth, the number of the well pipes is selected according to the actual situation by inserting the inserting rings on the well pipes into the inserting grooves of the other well pipe, then the spliced well pipes below a crane are passed, filler is added between the well pipes and the hole wall, and then the well pipes are inserted into the inserting grooves of the other well pipe. And finally, a water pump is placed in the well casing to pump water.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction equipment, and in particular to a foundation pit dewatering pipe well. BACKGROUND

[0002] Foundation pit dewatering refers to the dewatering work performed when the underground water level is higher than the excavation bottom surface during excavation of a foundation pit, underground water continuously seeps into the pit, and the dewatering work is performed to ensure that the foundation pit can be constructed under dry conditions, prevent slope instability, foundation quicksand, pit bottom heaving, pit bottom piping and reduction of the foundation bearing capacity. In order to ensure the engineering quality and construction safety, ensure that the foundation pit is excavated and the foundation is constructed under dry conditions at all times, a certain number of pipe wells are inserted around the foundation pit, underground water is pumped out through the pipe wells, the underground water level is lowered below the excavation foundation bottom surface, and the surrounding area of the foundation pit is ensured to be relatively dry.

[0003] The pipe well in the prior art is usually of a fixed length, and thus is not suitable for all foundation pit depths, and thus secondary processing is required before use, thereby affecting the construction progress. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the application aims to solve the above technical problems by a foundation pit dewatering pipe.

[0005] The above technical solution of the application is achieved by a foundation pit dewatering pipe, which comprises a plurality of groups of well pipes and a filter pipe at the bottom of the well pipes, the top of the well pipe is provided with a splicing ring, the lower end of the well pipe is provided with a splicing groove matched with the splicing ring, a fixing assembly for fixing the well pipes is arranged on the splicing ring, and the filter pipe is fixedly connected to the bottom of the lowermost well pipe.

[0006] By adopting the above technical solution, during construction, a hole is first excavated at a selected position of the foundation pit, the well pipes are spliced according to the actual depth, the splicing ring on the well pipe is inserted into the splicing groove of another well pipe, the number of well pipes is selected according to the actual situation, then the well pipes spliced by the crane are added with a filler between the well pipes and the hole wall, and finally a water pump is placed in the well pipe to perform water pumping.

[0007] Further, the fixing assembly comprises a fixing screw hole arranged on the splicing ring, a locking screw hole arranged on the outside of the well pipe, and a locking screw threadedly arranged on the locking screw hole, and the locking screw is threadedly connected to the locking screw hole and the fixing screw hole.

[0008] By adopting the above technical solution, when the splicing ring of the well pipe is inserted into the splicing groove of another well pipe, the locking screw on the locking screw hole is rotated and rotated to the fixing screw hole, so that the well pipes are fixed.

[0009] Further, the locking screw is externally fixed with a circular plate, and the locking screw hole is externally provided with a circular groove opened on the well pipe.

[0010] By adopting the above technical scheme, when the locking screw is rotated to the well pipe, the circular plate is stopped in the circular groove.

[0011] Further, the circular groove is externally provided with a pair of insertion strips fixedly connected to the outside of the well pipe, and the insertion strips are slidably provided with an insertion plate.

[0012] By adopting the above technical scheme, when the locking screw is rotatably connected to the locking screw hole and the fixing screw hole, the insertion plate is used to close the circular groove, so as to avoid that the sand in the hole wall enters the circular groove.

[0013] Further, the well pipe is further provided with a suspension device on both sides.

[0014] Further, the suspension device comprises a placing groove opened on both sides of the well pipe, and a connecting rod is rotatably connected to the placing groove, and a lifting ring is fixedly arranged on the connecting rod.

[0015] By adopting the above technical scheme, the lifting ring can provide a fulcrum for the lowering of the well pipe.

[0016] Further, a spring is fixedly arranged on the connecting rod, and the other end of the spring is fixedly connected to the placing groove.

[0017] By adopting the above technical scheme, after the well pipe is lowered, the spring can be automatically reset to the placing groove.

[0018] Further, a sealing rubber pad is fixedly arranged on the outside of the well pipe.

[0019] By adopting the above technical scheme, after the well pipe is connected, the rubber sealing pad can be attached to the connection of the well pipe.

[0020] In summary, the present application has the following beneficial technical effects:

[0021] The matching design of the insertion ring and the insertion slot between the well pipes makes the splicing of the well pipes simple and fast, greatly reducing the installation time and labor cost. The setting of the fixed assembly, such as the locking threaded hole and the locking screw rod, ensures the stable connection between the well pipes, preventing the loosening or falling of the well pipes due to the underground water pressure or other external forces. According to the actual depth of the foundation pit and the dewatering demand, the number of well pipes can be flexibly selected for splicing, so as to meet the dewatering demand of foundation pits of different scales and depths. The filter pipe is fixedly connected at the bottom of the lowermost well pipe, which can effectively filter impurities in underground water, prevent clogging, and improve the dewatering efficiency. By adding fillers such as bentonite between the well pipe and the hole wall, the leakage of underground water from the gap between the well pipe and the hole wall can be effectively prevented, and the dewatering efficiency is improved. The water pump is placed in the well pipe, which can continuously extract underground water, reduce the underground water level, and provide convenience for the construction of the foundation pit. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the overall structure schematic diagram in the embodiment;

[0023] Figure 2 is the well pipe structure schematic diagram in the embodiment;

[0024] Figure 3 is Figure 2 is the removal of the locking screw structure schematic diagram.

[0025] Reference signs: 1, well pipe; 11, insertion ring; 12, insertion slot; 13, insertion strip; 14, insertion plate; 15, round plate; 16, lifting ring; 17, connecting rod; 18, spring; 19, fixed threaded hole; 2, filter cylinder; 20, locking threaded hole; 21, sealing rubber pad; 201, round groove. DETAILED DESCRIPTION

[0026] The present application will be further described in detail below with reference to the accompanying drawings.

[0027] In the embodiment, reference is made to Figure 1 , Figure 2 and Figure 3The utility model provides a kind of foundation pit dewatering pipe, including multiple groups of well pipe 1 and the filter pipe of the bottom of well pipe 1, well pipe 1 top extends and inserts ring 11, well pipe 1 lower end is equipped with and inserts ring 11 matching insertion slot 12, inserts ring 11 is equipped with the fixed component for fixing between well pipe 1 and well pipe 1, filter pipe is fixedly connected in the bottom of the lowermost well pipe 1.

[0028] In the embodiment, the fixed component includes fixed screw hole 19 provided on the insertion ring 11, a locking screw hole 20 is provided on the outside of the well pipe, and a locking screw is threadedly arranged on the locking screw hole 20. When the insertion ring 11 of the well pipe 1 is inserted into the insertion slot 12 of another well pipe 1, the locking screw is rotated on the locking screw hole 20 and is rotated to the fixed screw hole 19, so that the well pipes 1 are fixed.

[0029] In the embodiment, a round plate 15 is fixedly arranged on the outside of the locking screw, and a round groove 201 is provided on the well pipe 1 outside the locking screw hole 20. When the locking screw is rotated to the well pipe 1, the round plate 15 stays in the round groove 201.

[0030] In the embodiment, a pair of insertion strips 13 are fixedly connected to the outside of the well pipe 1 outside the round groove 201, and an insertion plate 14 is slidingly arranged between the insertion strips 13. When the locking screw is rotated and connected to the locking screw hole 20 and the fixed screw hole 19, the round groove 201 is closed by the insertion plate 14 to prevent sand and stones in the hole wall from entering the round groove 201.

[0031] In the embodiment, a pair of insertion strips 13 are fixedly connected to the outside of the well pipe 1 outside the round groove 201, and an insertion plate 14 is slidingly arranged between the insertion strips 13. When the locking screw is rotated and connected to the locking screw hole 20 and the fixed screw hole 19, the round groove 201 is closed by the insertion plate 14 to prevent sand and stones in the hole wall from entering the round groove 201.

[0032] In the embodiment, a spring 18 is fixedly arranged on the connecting rod 17, and the other end of the spring 18 is fixedly connected in the placing groove. After the well pipe 1 is lowered, the spring 18 is automatically reset to the placing groove.

[0033] In the embodiment, a sealing rubber pad 21 is fixedly arranged on the outside of the well pipe 1. After the well pipe 1 is spliced, the rubber sealing pad 21 can be attached to the connection of the well pipe 1.

[0034] Specific implementation process: the well pipe 1 is connected through the insertion ring 11 and the insertion slot 12 to form a continuous drainage channel. The fixed assembly, including the fixed threaded hole 19, the locking threaded hole 20 and the locking screw, ensures the stable connection between the well pipes 1. After the insertion is completed, the locking screw is screwed into the fixed threaded hole 19 through the locking threaded hole 20 to realize the fixation of the well pipe 1. In order to prevent sand from entering the locking threaded hole 20, a circular plate 15 is arranged outside the locking screw, a circular groove 201 is opened on the well pipe 1, and a pair of insertion strips 13 is further arranged outside the circular groove 201, and the insertion plate 14 is slidingly installed between the insertion strips 13 to close the circular groove 201. The well pipe 1 is also provided with a suspension device on both sides, including a placing groove, a connecting rod 17, a lifting ring 16 and a spring 18, which facilitates the lifting and resetting of the well pipe 1. The spring 18 on the connecting rod 17 ensures that the well pipe 1 can be automatically reset to the placing groove after being lowered. In addition, a sealing rubber pad 21 is fixed outside the well pipe 1, which is attached to the connection of the well pipe 1 after the splicing is completed to enhance the sealing performance. During installation, the hole is first dug, the well pipe 1 is spliced as needed, the well pipe 1 is lowered by a crane, a filler is added between the well pipe 1 and the hole wall, and finally a water pump is used to pump water.

[0035] The embodiments of the specific implementation are the preferred embodiments of the application, but do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A dewatering tube well for a foundation pit, characterized by, The application relates to a well pipe (1) and a filter pipe at the bottom of the well pipe (1), the top of the well pipe (1) is extended with a plug-in ring (11), the lower end of the well pipe (1) is provided with a plug-in groove (12) matched with the plug-in ring (11), a fixing assembly for fixing the well pipe (1) and the well pipe (1) is arranged on the plug-in ring (11), and the filter pipe is fixedly connected to the bottom of the lowermost well pipe (1).

2. The tube well for dewatering a foundation pit according to claim 1, wherein The fixing assembly comprises a fixing screw hole (19) arranged on the plug-in ring (11), a locking screw hole (20) arranged on the outer side of the well pipe (1), a locking screw threadedly arranged on the locking screw hole (20), and the locking screw threadedly connected with the locking screw hole (20) and the fixing screw hole (19).

3. The tube well for dewatering a foundation pit according to claim 2, wherein The outer side of the locking screw is fixedly provided with a round plate (15), and the outer side of the locking screw hole (20) is provided with a round groove (201) arranged on the well pipe (1).

4. The tube well for dewatering a foundation pit according to claim 3, wherein The outer side of the round groove (201) is provided with a pair of plug-in strips (13) fixedly connected to the outer side of the well pipe (1), and a plug-in plate (14) is slidingly arranged between the plug-in strips (13).

5. The tube well for dewatering a foundation pit according to claim 1, wherein The well pipe (1) is further provided with a suspension device on both sides.

6. The dewatering tube well of claim 5, wherein, The suspension device comprises a placing groove arranged on both sides of the well pipe (1), a connecting rod (17) rotationally connected in the placing groove, and a lifting ring (16) fixedly arranged on the connecting rod (17).

7. The dewatering tube well of claim 6, wherein, The connecting rod (17) is fixedly provided with a spring (18), and the other end of the spring (18) is fixedly connected in the placing groove.

8. The dewatering tube well of claim 1, wherein, The outer side of the well pipe (1) is fixedly provided with a sealing rubber pad (21).

Images