Deep foundation pit drainage auxiliary device

Abstract

The utility model provides a deep foundation pit drainage auxiliary device which comprises a head water guide cylinder, a tail water guide cylinder and a plurality of middle water guide cylinders, and the head water guide cylinder, the middle water guide cylinders and the tail water guide cylinder are connected and fixed through a butt joint sealing mechanism and a clamping mechanism. A short water conveying pipe and a long water conveying pipe are arranged on the two side edges of the multiple middle water guide barrels correspondingly, the end of the short water conveying pipe and the end of the long water conveying pipe are both connected with water drawing heads, and each water drawing head comprises a filter screen shell and a filter wave plate. Compared with the prior art, the sealing ring has the following beneficial effects that through the design of the butt joint sealing mechanism and the clamping mechanism, whether the sealing ring and the sealing ring groove are in sealed butt joint or not can be determined through butt joint of the arc-shaped thick plate and the first arc-shaped butt joint groove, and the effect of rapid butt joint is achieved; and meanwhile, the movable plate is pulled to rotate to drive the insertion rod to move, so that the butt joint sealing mechanism is quickly clamped and fixed.

Description

Technical Field

[0001] The utility model relates to an auxiliary device for deep foundation pit drainage, belonging to the field of auxiliary devices for foundation pit drainage. Background Art

[0002] A deep foundation pit refers to a foundation pit with a depth of excavation exceeding 5 meters. The excavation of the foundation pit will inevitably cause changes in the groundwater level and stress field of the surrounding foundation. When the groundwater level is higher than the excavation bottom surface, groundwater will continuously seep into the pit, resulting in continuous underground seepage water gathering in the pit. And this seepage water will cause relatively serious problems such as slope instability, foundation quicksand, bottom heave of the pit, bottom piping of the pit, and reduction of foundation bearing capacity, and even serious accidents such as collapse of the foundation pit edge may occur. Therefore, special attention should be paid to strengthening drainage and anti-infiltration measures during the excavation of deep foundation pits, and the safe construction of deep foundation pits is difficult to guarantee.

[0003] However, the inner bottom of the foundation pit is uneven, and there are often a large number of pits, so that when the drainage device drains water, the effects of reducing the water pits in the foundation pit and comprehensive drainage cannot be achieved. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an auxiliary device for deep foundation pit drainage.

[0005] In order to achieve the above purpose, the utility model is realized by the following technical solutions:

[0006] An auxiliary device for deep foundation pit drainage includes a head water guide cylinder, a tail water guide cylinder and a plurality of middle water guide cylinders. The head water guide cylinder, the middle water guide cylinders and the tail water guide cylinder are connected and fixed through a butt joint sealing mechanism and a clamping mechanism. Water conveying short pipes and water conveying long pipes are respectively arranged on both sides of the plurality of middle water guide cylinders. The ends of both the water conveying short pipes and the water conveying long pipes are connected with water suction heads. The water suction head includes a filter net shell and a filter corrugated plate, and the filter corrugated plate is arranged at the bottom opening of the filter net shell.

[0007] Furthermore, the butt joint sealing mechanism includes a fixed ring seat one and a fixed ring seat two. An arc butt joint groove one and an arc butt joint groove two are opened on one side of the fixed ring seat one close to the fixed ring seat two. The arc butt joint groove two is opened on the outer surface of the fixed ring seat two. The arc butt joint groove one communicates with the inner side of the arc butt joint groove two. One end of the arc butt joint groove one is provided with a butt joint groove opening penetrating through the arc butt joint groove one and extending to the outer surface of the fixed ring seat two. The end of the arc butt joint groove one far from the butt joint groove opening is provided with a perforation penetrating through to the outer surface of the fixed ring seat two.

[0008] Further, the docking and sealing mechanism further includes an arc-shaped thin plate fixed to one side of the fixed ring seat close to the second fixed ring seat. An arc-shaped thick plate is provided at the end of the arc-shaped thin plate. A receiving groove is formed on the outer surface of the arc-shaped thick plate. A connecting block is slidably connected to the receiving groove, and a return spring cooperating with the connecting block is provided in the receiving groove.

[0009] Further, the docking and sealing mechanism further includes a sealing ring and a sealing ring groove, and the sealing ring is inserted into the sealing ring groove.

[0010] Further, the arc-shaped thin plate drives the arc-shaped thick plate to penetrate through the docking notch into the first arc-shaped docking groove. The arc-shaped thick plate is clamped in the first arc-shaped docking groove, and the arc-shaped thin plate is located in the second arc-shaped docking groove. The connecting block penetrates through the through hole to the outside of the second fixed ring seat.

[0011] Further, the clamping mechanism includes a mounting seat provided on the outer surface of the second fixed ring seat close to the first fixed ring seat. A movable plate is rotatably connected to the mounting seat. A sliding hole and a sliding sleeve are provided on the movable plate. The sliding sleeve is slidably connected to the movable plate. A plugging rod is movably connected to the outer surface of the sliding sleeve. The plugging rod is slidably connected in a through hole opened on the second fixed ring seat. A spring groove is further opened on the second fixed ring seat. A sliding block is slidably connected inside the spring groove. A sliding rod is provided on one side of the sliding block. The end of the sliding rod penetrates to the outside of the second fixed ring seat and is slidably connected to the sliding hole. A spring is sleeved on the outer surface of the sliding rod and located between the sliding block and the spring groove.

[0012] Further, docking holes cooperating with the plugging rod are opened on both the connecting block and the annular plate. The plugging rod penetrates through the docking holes on both the connecting block and the annular plate to connect the connecting block, the annular plate and the second fixed ring seat together.

[0013] Further, a connecting flange is connected to one end of the head water guide cylinder away from the middle water guide cylinder, and the connecting flange is connected to the water suction pipe of the water pump.

[0014] The beneficial effects of the present utility model:

[0015] Through the design of the docking sealing mechanism, the arc-shaped thick plate is inserted into the first arc-shaped docking groove through the docking notch. At this time, the arc-shaped thick plate is clamped inside one end of the first arc-shaped docking groove, and the arc-shaped thin plate is inside the second arc-shaped docking groove. Then, rotate the first fixed ring seat so that the arc-shaped thick plate and the arc-shaped thin plate rotate to the other end inside the first arc-shaped docking groove and the second arc-shaped docking groove. At this time, the first fixed ring seat and the second fixed ring seat are closely attached together, and synchronously the sealing ring and the sealing ring groove are also hermetically docked together to achieve the sealing effect. Furthermore, through the docking of the arc-shaped thick plate and the first arc-shaped docking groove, it is determined whether the sealing ring and the sealing ring groove are hermetically docked together.

[0016] Through the design of the clamping mechanism, before the docking of the docking sealing mechanism, first pull the movable plate to rotate. The rotation of the movable plate pulls the plugging rod to move and be received in the through hole, so that the plugging rod does not affect the movement of the connecting block. When the docking sealing mechanism is docked together, the connecting block pops out to the outside of the second fixed ring seat under the action of the return spring. At this time, the docking hole on the connecting block corresponds to the plugging rod. Then release the movable plate. Under the action of the spring, the plugging rod penetrates the docking holes on both the connecting block and the annular plate to connect the connecting block, the annular plate and the second fixed ring seat together.

[0017] The water suction head is composed of a filter net shell and a filter corrugated plate. Thus, when the water suction head extracts water flow, the filter net shell and the filter corrugated plate can block the sundries in the water flow outside, and at the same time, the corrugated filter corrugated plate gives the sundries a curved accommodating space. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of an auxiliary device for deep foundation pit drainage according to the present invention;

[0020] Figure 2 It is a partial structural schematic diagram of an auxiliary device for deep foundation pit drainage according to the present invention Figure 1 ;

[0021] Figure 3 It is a sectional structural schematic diagram of an auxiliary device for deep foundation pit drainage according to the present invention;

[0022] Figure 4 It is an enlarged structural schematic diagram of point A of an auxiliary device for deep foundation pit drainage according to the present invention;

[0023] Figure 5This is a partial structural diagram of a deep foundation pit drainage auxiliary device of the utility model. Figure 2 ;

[0024] Figure 6 This is a schematic diagram of the water-drawing head structure of a deep foundation pit drainage auxiliary device of the utility model;

[0025] Figure 7 The utility model is a schematic diagram of the connection structure of a fixed ring seat 2, an arc-shaped docking groove 1 and an arc-shaped docking groove 2 of a deep foundation pit drainage auxiliary device.

[0026] In the figure, 1, head water guide cylinder; 2, tail water guide cylinder; 3, middle water guide cylinder; 4, filtering wave plate; 5, connecting flange; 6, sealing ring; 7, sealing ring groove; 8, fixed ring seat 1; 9, arc thin plate; 10, arc thick plate; 11, connecting block; 12, fixed ring seat 2; 13, arc docking groove 1; 14, arc docking groove 2; 15, perforation; 16, annular plate; 17, mounting seat; 18, movable plate; 19, sliding hole; 20, sliding sleeve; 21, through hole; 22, plug-in rod; 23, spring groove; 24, sliding block; 25, sliding rod; 26, spring; 27, short water pipe; 28, long water pipe; 29, water drawing head; 30, filtering net shell. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figures 1-7 The utility model provides a technical solution for a deep foundation pit drainage auxiliary device, including a head water guide cylinder 1, a tail water guide cylinder 2 and a plurality of middle water guide cylinders 3. The head water guide cylinder 1, the middle water guide cylinder 3 and the tail water guide cylinder 2 are connected and fixed by a docking sealing mechanism and a clamping mechanism. A short water delivery pipe 27 and a long water delivery pipe 28 are respectively provided on both sides of the plurality of middle water guide cylinders 3. The ends of the short water delivery pipe 27 and the long water delivery pipe 28 are both connected with a water drawing head 29. The water drawing head 29 includes a filter mesh shell 30 and a filter wave plate 4. The filter wave plate 4 is arranged at the bottom opening of the filter mesh shell 30. The end of the head water guide cylinder 1 away from the middle water guide cylinder 3 is connected with a connecting flange 5, and the connecting flange 5 is connected to the water suction pipe of the water pump.

[0029] See also Figures 1-7, the docking and sealing mechanism includes a first fixed ring seat 8 and a second fixed ring seat 12. On one side of the first fixed ring seat 8 close to the second fixed ring seat 12, there are provided a first arc-shaped docking groove 13 and a second arc-shaped docking groove 14. The second arc-shaped docking groove 14 is opened on the outer surface of the second fixed ring seat 12. The first arc-shaped docking groove 13 communicates with the inner side of the second arc-shaped docking groove 14. One end of the first arc-shaped docking groove 13 is provided with a docking groove opening that penetrates through the first arc-shaped docking groove 13 and extends to the outer surface of the second fixed ring seat 12. The end of the first arc-shaped docking groove 13 far from the docking groove opening is provided with a perforation 15 that penetrates to the outer surface of the second fixed ring seat 12. The docking and sealing mechanism further includes an arc-shaped thin plate 9 fixed on one side of the first fixed ring seat 8 close to the second fixed ring seat 12. The end of the arc-shaped thin plate 9 is provided with an arc-shaped thick plate 10. A receiving groove is opened on the outer surface of the arc-shaped thick plate 10. A connecting block 11 is slidably connected in the receiving groove. A return spring that cooperates with the connecting block 11 is provided in the receiving groove. The docking and sealing mechanism further includes a sealing ring 6 and a sealing ring groove 7. The sealing ring 6 is inserted into the sealing ring groove 7. The arc-shaped thin plate 9 drives the arc-shaped thick plate 10 to penetrate through the docking groove opening and into the first arc-shaped docking groove 13. The arc-shaped thick plate 10 is clamped in the first arc-shaped docking groove 13. The arc-shaped thin plate 9 is located in the second arc-shaped docking groove 14. The connecting block 11 penetrates through the perforation 15 to the outside of the second fixed ring seat 12. Through the design of the docking and sealing mechanism, the arc-shaped thick plate 10 is inserted into the first arc-shaped docking groove 13 through the docking groove opening. At this time, the arc-shaped thick plate 10 is clamped inside one end of the first arc-shaped docking groove 13, and the arc-shaped thin plate 9 is located inside the second arc-shaped docking groove 14. Then, the first fixed ring seat 8 is rotated so that the arc-shaped thick plate 10 and the arc-shaped thin plate 9 rotate to the other end inside the first arc-shaped docking groove 13 and the second arc-shaped docking groove 14. At this time, the first fixed ring seat 8 and the second fixed ring seat 12 are closely attached together. Synchronously, the sealing ring 6 and the sealing ring groove 7 are also sealed and docked together to achieve a sealing effect. Furthermore, through the docking of the arc-shaped thick plate 10 and the first arc-shaped docking groove 13, it is determined whether the sealing ring 6 and the sealing ring groove 7 are sealed and docked together.

[0030] Refer to Figures 1-7, the clamping mechanism includes a mounting seat 17 provided on the outer surface of the second fixed ring seat 12 close to one side of the first fixed ring seat 8. A movable plate 18 is rotatably connected to the mounting seat 17. A sliding hole 19 and a sliding sleeve 20 are provided on the movable plate 18. The sliding sleeve 20 is slidably connected to the movable plate 18. An insertion rod 22 is movably connected to the outer surface of the sliding sleeve 20. The insertion rod 22 is slidably connected in a through hole 21. The through hole 21 is opened on the second fixed ring seat 12. A spring groove 23 is further opened on the second fixed ring seat 12. A sliding block 24 is slidably connected inside the spring groove 23. A sliding rod 25 is provided on one side of the sliding block 24. The end of the sliding rod 25 penetrates to the outside of the second fixed ring seat 12 and is slidably connected to the sliding hole 19. A spring 26 is sleeved on the outer surface of the sliding rod 25 and located between the sliding block 24 and the spring groove 23. Docking holes matching the insertion rod 22 are opened on both the connecting block 11 and the annular plate 16. The insertion rod 22 penetrates the docking holes on both the connecting block 11 and the annular plate 16 to connect the connecting block 11, the annular plate 16 and the second fixed ring seat 12 together; through the design of the clamping mechanism, before the docking sealing mechanism is docked, first pull the movable plate 18 to rotate. The rotation of the movable plate 18 pulls the insertion rod 22 to move and be received in the through hole 21, so that the insertion rod 22 does not affect the movement of the connecting block 11. When the docking sealing mechanism is docked together, the connecting block 11 pops out to the outside of the second fixed ring seat 12 under the action of the return spring. At this time, the docking hole on the connecting block 11 corresponds to the insertion rod 22. Then release the movable plate 18. Under the action of the spring 26, the insertion rod 22 penetrates the docking holes on both the connecting block 11 and the annular plate 16 to connect the connecting block 11, the annular plate 16 and the second fixed ring seat 12 together.

[0031] During use, select the corresponding number of middle water guide tubes 3 according to the size of the foundation pit bottom inside the foundation pit, and connect several middle water guide tubes 3 to the head water guide tube 1 and the tail water guide tube 2. That is, first pull the movable plate 18 to rotate, and the rotation of the movable plate 18 pulls the insertion rod 22 to move and be received into the through hole 21, so that the insertion rod 22 will not affect the movement of the connection block 11. Then, insert the arc-shaped thick plate 10 into the arc-shaped docking groove 13 through the docking notch. At this time, the arc-shaped thick plate 10 is clamped inside one end of the arc-shaped docking groove 13, and the arc-shaped thin plate 9 is located inside the arc-shaped docking groove 14. Then, rotate the fixed ring seat 1 8 so that the arc-shaped thick plate 10 and the arc-shaped thin plate 9 rotate to the other end inside the arc-shaped docking groove 13 and the arc-shaped docking groove 14. At this time, the connection block 11 on the arc-shaped thick plate 10 corresponds to the through hole 15 at the end of the arc-shaped docking groove 13. At this time, the connection block 11 pops out to the outside of the fixed ring seat 2 12 under the action of the return spring. At this time, the docking hole on the connection block 11 corresponds to the insertion rod 22. Then release the movable plate 18. Under the action of the spring 26, the insertion rod 22 passes through the docking holes on both the connection block 11 and the annular plate 16 to connect the connection block 11, the annular plate 16 and the fixed ring seat 2 12 together;

[0032] After the head water guide tube 1, the tail water guide tube 2 and the middle water guide tube 3 are connected, place the water extraction heads 29 at the ends of the water delivery short tubes 27 and the water delivery long tubes 28 on the middle water guide tube 3 at several depressions at the bottom of the foundation pit. The water flow in the foundation pit will transport the water flow to the inside of the head water guide tube 1, the tail water guide tube 2 and the middle water guide tube 3 through the several water extraction heads 29 and finally pump it out through the water extraction pipe and the water extraction pump.

[0033] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An auxiliary device for deep foundation pit drainage, characterized in that, It includes a head water guide cylinder (1), a tail water guide cylinder (2) and several middle water guide cylinders (3). The head water guide cylinder (1), the middle water guide cylinders (3) and the tail water guide cylinder (2) are connected and fixed to each other through a docking sealing mechanism and a clamping mechanism. On both sides of several middle water guide cylinders (3), a short water delivery pipe (27) and a long water delivery pipe (28) are respectively provided. At the ends of both the short water delivery pipe (27) and the long water delivery pipe (28), a water suction head (29) is connected. The water suction head (29) includes a filter mesh shell (30) and a filter corrugated plate (4), and the filter corrugated plate (4) is arranged at the bottom opening of the filter mesh shell (30).

2. The auxiliary device for deep foundation pit drainage according to claim 1, wherein The docking sealing mechanism includes a first fixed ring seat (8) and a second fixed ring seat (12). On one side of the first fixed ring seat (8) close to the second fixed ring seat (12), a first arc-shaped docking groove (13) and a second arc-shaped docking groove (14) are opened. The second arc-shaped docking groove (14) is opened on the outer surface of the second fixed ring seat (12). The first arc-shaped docking groove (13) communicates with the inner side of the second arc-shaped docking groove (14). At one end of the first arc-shaped docking groove (13), a docking groove opening is opened, which penetrates through the first arc-shaped docking groove (13) and extends to the outer surface of the second fixed ring seat (12). At the end of the first arc-shaped docking groove (13) far from the docking groove opening, a through hole (15) is opened and penetrates through to the outer surface of the second fixed ring seat (12).

3. The auxiliary device for deep foundation pit drainage according to claim 2, wherein The docking sealing mechanism further includes an arc-shaped thin plate (9) fixed on one side of the first fixed ring seat (8) close to the second fixed ring seat (12). At the end of the arc-shaped thin plate (9), an arc-shaped thick plate (10) is provided. A storage groove is opened on the outer surface of the arc-shaped thick plate (10), and a connecting block (11) is slidably connected in the storage groove. A return spring matched with the connecting block (11) is arranged in the storage groove.

4. The auxiliary device for deep foundation pit drainage according to claim 3, characterized in that, The docking sealing mechanism further includes a sealing ring (6) and a sealing ring groove (7), and the sealing ring (6) is inserted into the sealing ring groove (7).

5. The auxiliary device for deep foundation pit drainage according to claim 4, characterized in that, The arc-shaped thin plate (9) drives the arc-shaped thick plate (10) to penetrate through the docking groove opening and into the first arc-shaped docking groove (13). The arc-shaped thick plate (10) is clamped in the first arc-shaped docking groove (13). The arc-shaped thin plate (9) is located in the second arc-shaped docking groove (14). The connecting block (11) penetrates through the through hole (15) and extends to the outside of the second fixed ring seat (12).

6. The auxiliary device for deep foundation pit drainage according to claim 5, characterized in that, The clamping mechanism includes a mounting seat (17) arranged on the outer surface of the second fixed ring seat (12) close to the first fixed ring seat (8). A movable plate (18) is rotatably connected to the mounting seat (17). A sliding hole (19) and a sliding sleeve (20) are provided on the movable plate (18). The sliding sleeve (20) is slidably connected to the movable plate (18). A plugging rod (22) is movably connected to the outer surface of the sliding sleeve (20). The plugging rod (22) is slidably connected in a through hole (21). The through hole (21) is opened on the second fixed ring seat (12). A spring groove (23) is also opened on the second fixed ring seat (12). A sliding block (24) is slidably connected inside the spring groove (23). A sliding rod (25) is provided on one side of the sliding block (24). The end of the sliding rod (25) penetrates to the outside of the second fixed ring seat (12) and is slidably connected to the sliding hole (19). A spring (26) is sleeved on the outer surface of the sliding rod (25) and located between the sliding block (24) and the spring groove (23).

7. The auxiliary device for deep foundation pit drainage according to claim 6, characterized in that, Docking holes adapted to the plugging rod (22) are opened on both the connection block (11) and the annular plate (16). The plugging rod (22) penetrates through the docking holes on both the connection block (11) and the annular plate (16) to connect the connection block (11), the annular plate (16), and the second fixed ring seat (12) together.

8. The auxiliary device for deep foundation pit drainage according to claim 7, characterized in that, One end of the head water guide cylinder (1) far from the middle water guide cylinder (3) is communicated with a connection flange (5). The connection flange (5) is connected to the water suction pipe of a water pump.

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