CN214784087U

CN214784087U - Flange well sealing device for dewatering well penetrating through bottom plate in foundation pit

Info

Publication number: CN214784087U
Application number: CN202120663394.4U
Authority: CN
Inventors: 张妹; 关自愿; 马媛媛; 王钰; 柳季
Original assignee: Jiangsu Guzhou Foundation Engineering Co ltd
Current assignee: Jiangsu Guzhou Foundation Engineering Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-19
Anticipated expiration: 2031-03-31

Abstract

The utility model relates to a wear bottom plate dewatering well flange well plugging device in foundation ditch, it is including setting up the first ring flange at the dewatering well head, bolted connection has the second ring flange on the first ring flange, the inner edge of second ring flange is equipped with the annular slab, be equipped with on the annular slab and be used for carrying out the locating component who fixes to the slip casting pipe, locating component is including setting up the fixed pipe on the annular slab, wear to establish relatively on the fixed pipe and threaded connection has two to tight bolt, two it is connected with to the tight board to rotate respectively on the relative terminal surface of tight bolt, and the slip casting pipe is supported tightly two support between the tight board. The application has the technical effects that: the possibility of the grouting pipe swinging in the grouting process is reduced, and the effect of grouting plugging of the dewatering well is improved.

Description

Flange well sealing device for dewatering well penetrating through bottom plate in foundation pit

Technical Field

The application relates to the technical field of foundation pit construction, especially, relate to a wear bottom plate dewatering well flange well plugging device for well in foundation pit.

Background

The foundation pit dewatering refers to dewatering work performed to ensure that the foundation pit can be constructed under a dry condition and prevent slope instability, basic quicksand, pit bottom uplift, pit bottom piping and foundation bearing capacity reduction when the underground water level is higher than the excavation bottom surface during excavation of the foundation pit; the dewatering well is a common foundation pit dewatering mode.

Notice No. CN210658408U discloses a foundation ditch precipitation well and block structure thereof, including precipitation well and block structure, precipitation well is including reserving the filtration steel casing pipe in the foundation ditch, be equipped with the cushion cap on the filtration steel casing pipe, the cushion cap is in same horizontal plane with the foundation ditch, be equipped with the drainage hole on the pipe wall of filtration steel casing pipe insertion soil body part, be equipped with dense mesh net on the pipe wall of filtration steel casing pipe insertion soil body part, be equipped with the drinking-water pipe in the filtration steel casing pipe, the drinking-water pipe is connected with the water pump, be equipped with the suction pipe in the filtration steel casing pipe, suction pipe one end is connected and is filtered the steel casing bottom, the mud bucket is connected to the suction pipe other end, be equipped with the gas-supply pipe on the suction pipe, the gas pump is connected to the gas-supply pipe, be equipped with the pneumatic valve on the gas-supply pipe, block structure includes stagnant water ring and shutoff board, steel casing pipe top opening part installs the stagnant water ring, the shutoff board is through bolt assembly installation.

The technical scheme has the following defects: after the foundation pit construction is finished, concrete is poured into the dewatering well through a steel grouting pipe to seal the dewatering well; the dewatering well structure is difficult to fix the grouting pipe in the grouting process; the grouting pipe is easy to swing to a state of being tightly attached to the well wall of the dewatering well, so that the grouting inside the dewatering well is not uniform, and the grouting plugging effect of the dewatering well is poor.

SUMMERY OF THE UTILITY MODEL

In order to improve precipitation well slip casting shutoff effect, the application provides a wear bottom plate in foundation ditch flange well sealing device for precipitation well adopts following technical scheme: the utility model provides a wear bottom plate dewatering well flange well shut-in device in foundation ditch, is including setting up the first ring flange at the dewatering well head, bolted connection has the second ring flange on the first ring flange, the inner edge of second ring flange is equipped with the annular slab, be equipped with on the annular slab and be used for carrying out the locating component who fixes to the slip casting pipe, locating component is including setting up the fixed pipe on the annular slab, wear to establish relatively on the fixed pipe and threaded connection has two to support tight bolt, two it is connected with to support tight board to rotate respectively on the terminal surface that tight bolt is relative, and the slip casting pipe is supported tightly two support between the tight board.

Through the technical scheme, when need carry out the slip casting in the precipitation well, the staff can pass fixed pipe with the slip casting pipe at first and insert in the precipitation well, then rotate two respectively and support two tight boards of tight bolt drive and remove towards the slip casting pipe direction, support the slip casting pipe tightly between two tight boards, under the restriction of two tight boards, the slip casting pipe is difficult to swing at the slip casting in-process, so that slip casting pipe can be stable carry out the slip casting in the precipitation well, thereby the effect of precipitation well slip casting shutoff has been promoted.

Optionally, the two abutting plates are provided with reinforcing grooves matched with the grouting pipes on end surfaces deviating from the abutting bolts, the two reinforcing grooves are respectively provided with arc-shaped rubber pads, and the grouting pipes are abutted between the two rubber pads.

Through the technical scheme, under the limitation of the two reinforcing grooves, the grouting pipe is difficult to move relative to the abutting plate under the action of external force, so that the fixing effect of the abutting plate on the grouting pipe is further enhanced; the two rubber pads have the effect of relieving pressure, have reduced the slip casting pipe and have supported the possibility of distortion under the pressure of tight board at two to the effect of protecting the slip casting pipe has been reached.

Optionally, the inner wall of the fixed pipe is provided with two rotation blocking rods, the two tightening plates are provided with two rotation blocking holes matched with the rotation blocking rods, the two rotation blocking rods penetrate through the rotation blocking holes in the two tightening plates in sequence, and the grouting pipe is located between the two rotation blocking rods and is in contact with the two rotation blocking rods.

Through above-mentioned technical scheme, under the restriction of two rotation-resisting rods, two support tight board and be difficult to for supporting tight bolt rotation under the effect of external force to two reinforcement grooves that support on the tight board can remain throughout in the position corresponding with the slip casting pipe, convenient degree when having promoted the fixed slip casting pipe of staff.

Optionally, one end of the fixing pipe, which is far away from the annular plate, is provided with two positioning plates, the two positioning plates are respectively penetrated and connected with a rotation resisting bolt in a threaded manner, the end part of the rotation resisting bolt is rotatably connected with a fixing plate, and the fixing plate and the tightening bolt are correspondingly arranged.

Through the technical scheme, after the grouting pipe is tightly fixed between the two tightening plates, a worker can respectively rotate the two rotation blocking bolts to drive the two fixing plates to move towards the tightening bolts until the two fixing plates respectively and correspondingly tighten the two tightening bolts, the friction resistance of the tightening bolts in rotation relative to the fixing pipe is increased by the fixing plates, the possibility that the tightening bolts are loosened under the action of external force is reduced, and the fixing effect of the tightening bolts on the grouting pipe is further enhanced.

Optionally, the end face of the fixing plate, which deviates from the tightening bolt, is connected with a rotation resisting plate through a plurality of springs, the end face of the rotation resisting plate, which deviates from the plurality of springs, is provided with an anti-slip pad, and the anti-slip pad and the tightening bolt are mutually tightened.

Through above-mentioned technical scheme, the slipmat has the effect that reduces to tight bolt not hard up under the effect of external force with supporting the setting that tight bolt supports each other, simultaneously, when hindering to change the bolt and appear not hard up the condition under the effect of external force, hinder and change board and slipmat and can continue to support tightly on supporting tight bolt under the effect of a plurality of spring elastic forces to further strengthened the slipmat and to supporting the effect of changeing of blocking of tight bolt.

Optionally, the fixed pipe is detachably connected to the annular plate through a connecting piece, the connecting piece comprises a plurality of connecting pieces arranged on the outer edge of the fixed pipe, the connecting pieces are respectively penetrated and connected with connecting bolts in a threaded manner, a plurality of thread grooves matched with the connecting bolts are correspondingly formed in the annular plate, and the connecting bolts are respectively connected in the thread grooves in a threaded manner.

Through above-mentioned technical scheme, the slip casting is accomplished the back, and the mode that staff's accessible bolt was dismantled unloads a plurality of connecting bolt respectively, then will fix the whole annular slab of following of pipe and lift off to in fixed pipe can be by reuse.

Optionally, the annular plate is correspondingly provided with a plurality of positioning grooves matched with the connecting sheet, and the notches of the plurality of positioning grooves are respectively provided with guide grooves in an inclined manner; when the connecting pieces are correspondingly inserted into the positioning grooves, the connecting bolts are aligned with the thread grooves.

Through the technical scheme, the positioning grooves have the function of indicating and positioning, so that when a worker installs the fixed pipe, the worker can quickly align a plurality of connecting bolts on the connecting sheets with a plurality of thread grooves in a mode that the connecting sheets are correspondingly inserted into the positioning grooves respectively, and the efficiency of the worker in installing the fixed pipe is improved; the setting of guide way has the effect of direction to the connection piece can slide to the constant head tank along the slope inner wall of guide way in fast, thereby efficiency when further having promoted the fixed pipe of staff's installation.

Optionally, magnetic sheets are respectively embedded at the bottoms of the positioning grooves, and the connecting sheets are respectively and correspondingly adsorbed on the magnetic sheets.

Through the technical scheme, under the magnetic force effect of the magnetic sheets, the connecting sheet is not easy to break away from the positioning groove under the action of external force, the possibility that the connecting sheet breaks away from the positioning groove due to looseness of the connecting bolt under the action of the external force is reduced, and therefore the connection firmness between the fixing pipe and the annular plate is enhanced.

In summary, the present application includes at least one of the following beneficial technical effects:

1. under the limitation of the two abutting plates, the grouting pipe is difficult to swing in the grouting process, so that the grouting pipe can stably perform grouting in the precipitation well, and the grouting plugging effect of the precipitation well is improved;

2. the rotation resisting plate and the non-slip mat increase the frictional resistance of the tightening bolt in rotation relative to the fixed pipe, and reduce the possibility of loosening of the tightening bolt under the action of external force, thereby further enhancing the fixing effect of the tightening bolt on the grouting pipe.

Drawings

Fig. 1 is a schematic structural section of the whole structure of the embodiment of the present application.

Fig. 2 is a schematic structural diagram for embodying a holding-down plate in the embodiment of the present application.

Fig. 3 is a schematic diagram of an explosive structure for embodying a connecting member according to an embodiment of the present application.

Reference numerals: 1. dewatering wells; 2. a first flange plate; 3. a second flange plate; 4. an annular plate; 5. a positioning assembly; 6. a fixed tube; 7. tightly abutting against the bolt; 8. a propping plate; 9. a reinforcing groove; 10. a rubber pad; 11. a rotation blocking rod; 12. a rotation blocking hole; 13. positioning a plate; 14. a rotation-resisting bolt; 15. a fixing plate; 16. a spring; 17. a rotation resistance plate; 18. a non-slip mat; 19. a connecting member; 20. connecting sheets; 21. a connecting bolt; 22. a thread groove; 23. positioning a groove; 24. a guide groove; 25. a magnetic sheet; 26. and (4) grouting pipes.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses wear bottom plate dewatering well flange well plugging device in foundation ditch.

As shown in fig. 1 and 2, the through-floor dewatering well flange well sealing device in the foundation pit comprises a first flange plate 2 fixedly welded at the wellhead of a dewatering well 1, a second flange plate 3 matched with the first flange plate 2 is connected to the first flange plate 2 through bolts, an annular plate 4 is fixedly connected to the inner edge of the second flange plate 3, the upper end face of the annular plate 4 is flush with the upper end face of the second flange plate 3, and a positioning assembly 5 used for fixing a grouting pipe 26 is arranged on the annular plate 4. Therefore, when grouting is needed to be performed inside the dewatering well 1, a worker can penetrate the grouting pipe 26 into the dewatering well 1 from the fixing pipe 6, then the positioning assembly 5 is used for fixing the position of the grouting pipe 26, the possibility that the grouting pipe 26 swings in the grouting process is reduced, the grouting pipe 26 can perform uniform grouting in the dewatering well 1, and therefore the grouting plugging effect of the dewatering well 1 is improved.

As shown in fig. 2 and 3, the positioning assembly 5 comprises a fixed tube 6 detachably connected to the annular plate 4 by a connecting piece 19, and the axis of the fixed tube 6 is collinear with the axis of the second flange 3; fixed pipe 6 is last respectively along relative wear to establish of horizontal direction and threaded connection has two to tight bolt 7, and two tip that support tight bolt 7 rotate respectively and are connected with to tight board 8, and two are supported tight board 8 and deviate from to set up respectively on the terminal surface of tight bolt 7 relatively with slip casting pipe 26 assorted reinforcement groove 9, and two all bond in the reinforcement groove 9 have with reinforcement groove 9 assorted arc rubber pad 10, and slip casting pipe 26 is supported tightly between two arc rubber pads 10. Therefore, under the limitation of the two abutting plates 8, the grouting pipe 26 is not easy to swing relative to the abutting plates 8 in the grouting process, so that the effect of fixing the grouting pipe 26 is achieved, and the grouting pipe 26 can stably perform grouting into the dewatering well 1; after grouting is finished, workers can respectively rotate the two fastening bolts 7 to loosen the grouting pipe 26, and then take the grouting pipe 26 out of the dewatering well 1; meanwhile, the worker can also detach the fixing tube 6 from the annular plate 4 through the connecting piece 19 so that the fixing tube 6 can be reused, and the cost is reduced.

As shown in fig. 2 and 3, the inner wall of the fixed pipe 6 is fixedly connected with two rotation blocking rods 11 along the horizontal direction, the two tightening plates 8 are respectively provided with rotation blocking holes 12 matched with the rotation blocking rods 11 along the horizontal direction, the two rotation blocking rods 11 respectively penetrate through the rotation blocking holes 12 on the two tightening plates 8 in sequence, and the tightening plates 8 can slide along the rotation blocking rods 11 under the driving of the tightening bolts 7. Therefore, under the restriction of two rotation blocking rods 11, the tightening plate 8 is difficult to rotate under the driving of the tightening bolt 7, so that the two reinforcing grooves 9 on the tightening plate 8 can be always kept in a vertical state, a worker can quickly fix the grouting pipe 26 between the two reinforcing grooves 9, and the efficiency of the worker in fixing the grouting pipe 26 is improved.

As shown in fig. 3, the end face of the fixing tube 6 far away from the annular plate 4 is fixedly connected with two positioning plates 13 respectively arranged along the horizontal direction, the two positioning plates 13 are respectively penetrated and connected with a rotation-resisting bolt 14 through threads, the end part of the rotation-resisting bolt 14 is rotatably connected with a fixing plate 15, the end face of the fixing plate 15 far away from the rotation-resisting bolt 14 is connected with a rotation-resisting plate 17 through a plurality of springs 16, the end face of the rotation-resisting plate 17 far away from the plurality of springs 16 is bonded with anti-slip pads 18 made of rubber, the two anti-slip pads 18 are respectively tightly supported on the outer edges of the two rotation-resisting bolts 14, and the plurality of springs 16 are in a contraction state. Therefore, the anti-slip pad 18 tightly abuts against the abutting bolt 7, so that the rotation resistance of the abutting bolt 7 is increased, the looseness of the abutting bolt 7 under the action of external force is reduced, the possibility that the two abutting plates 8 are difficult to continuously abut and fix the grouting pipe 26 is reduced, and the abutting effect of the abutting plates 8 on the grouting pipe 26 is further enhanced; meanwhile, under the action of the springs 16, the non-slip mat 18 can be tightly abutted against the abutting bolt 7 under the action of the elastic force of the springs 16 when the rotation-resisting bolt 14 is loosened, so that the rotation-resisting effect of the non-slip mat 18 on the abutting bolt 7 is further enhanced.

As shown in fig. 3, the connecting member 19 is provided: the grouting device comprises a plurality of connecting pieces 20 fixedly connected to the outer edge of a fixed pipe 6, wherein the connecting pieces 20 are made of iron, the connecting pieces 20 are respectively penetrated and connected with connecting bolts 21 in a threaded manner, a plurality of positioning grooves 23 matched with the connecting pieces 20 are respectively and correspondingly formed in a plurality of annular plates 4, thread grooves 22 matched with the connecting bolts 21 are respectively formed in the positioning grooves 23, the fixed pipe 6 is connected to the annular plates 4 in a threaded manner through the connecting bolts 21 respectively, so that after grouting is completed, a worker can detach the fixed pipe 6 from the annular plates 4 in a bolt detaching manner; the positioning grooves 23 are also provided with guide grooves 24 along the periphery in an inclined manner, and when the connecting pieces 20 on the fixing tube 6 are correspondingly inserted into the positioning grooves 23, the connecting bolts 21 are aligned with the thread grooves 22. Therefore, the positioning groove 23 has an effect of indicating positioning so that the worker can bolt the fixing tube 6 to the ring plate 4 quickly according to the indication of the positioning groove 23, thereby improving the efficiency of the worker in installing the fixing tube 6.

As shown in fig. 3, magnetic sheets 25 are respectively embedded in the positioning slots 23, the upper end surfaces of the magnetic sheets 25 are flush with the bottom surfaces of the positioning slots 23, and when the connecting sheets 20 are respectively inserted into the positioning slots 23, the magnetic sheets 25 and the connecting sheets 20 are abutted against each other and adsorbed. Therefore, the connecting piece 20 can be adsorbed in the positioning groove 23 under the action of the magnetic force of the magnetic sheet 25, the possibility that the connecting bolts 21 are loosened in the grouting process to cause the fixing pipe 6 to be separated from the annular plate 4 is reduced, and the connecting strength between the fixing pipe 6 and the annular plate 4 is further enhanced.

The implementation principle of the embodiment of the application is as follows: when grouting is needed to be performed on the dewatering well 1, a worker can firstly connect the fixing pipe 6 to the annular plate 4 through a bolt, then penetrate the grouting pipe 26 into the dewatering well 1 from the fixing pipe 6, respectively rotate the two resisting bolts 7 to tightly fix the grouting pipe 26 between the two rubber pads 10, and then respectively rotate the two rotation resisting bolts 14 until the two anti-slip pads 18 are respectively tightly contacted with the two resisting bolts 7, and the springs 16 are all in a contraction state; under the restriction of the two abutting plates 8, the grouting pipe 26 is difficult to swing relative to the fixed pipe 6 in the grouting process, so that the grouting pipe 26 can stably perform grouting into the dewatering well 1, and the grouting plugging effect of the dewatering well 1 is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a wear bottom plate dewatering well flange well plugging device for well in foundation ditch which characterized in that: including setting up first ring flange (2) at precipitation well (1) well head, bolted connection has second ring flange (3) on first ring flange (2), the inner edge of second ring flange (3) is equipped with annular plate (4), be equipped with on annular plate (4) and be used for carrying out locating component (5) fixed to slip casting pipe (26), locating component (5) are including setting up fixed pipe (6) on annular plate (4), wear to establish relatively and threaded connection has two to tight bolt (7), two on the fixed pipe (6) support and rotate respectively on the relative terminal surface of tight bolt (7) and be connected with and support tight board (8), slip casting pipe (26) are supported tightly two support between tight board (8).

2. The flange well sealing device for the floor penetrating dewatering well in the foundation pit according to claim 1, characterized in that: the end faces, away from the fastening bolts (7), of the two fastening plates (8) are respectively provided with a reinforcing groove (9) matched with the grouting pipe (26), arc-shaped rubber pads (10) are respectively arranged in the two reinforcing grooves (9), and the grouting pipe (26) is fastened between the two rubber pads (10).

3. The flange well sealing device for the floor penetrating dewatering well in the foundation pit according to claim 2, characterized in that: be equipped with two on the inner wall of fixed pipe (6) respectively and hinder bull stick (11), two prop tightly and offer respectively on board (8) two and hinder bull stick (11) assorted and hinder hole (12), two hinder bull stick (11) and wear to establish in proper order respectively two and support hindering on board (8) and changeing hole (12), grouting pipe (26) are located two hinder between bull stick (11) and hinder bull stick (11) mutual contact with two.

4. The flange well sealing device for the floor penetrating dewatering well in the foundation pit according to claim 1, characterized in that: the one end that the annular plate (4) was kept away from in fixed pipe (6) is equipped with two locating plates (13) respectively, two wear to establish respectively and threaded connection has the rotation-resistant bolt (14) on locating plate (13), the tip rotation of rotation-resistant bolt (14) is connected with fixed plate (15), fixed plate (15) and support tight bolt (7) and correspond the setting.

5. The flange well sealing device for the floor penetrating dewatering well in the foundation pit according to claim 4, characterized in that: the anti-skidding device is characterized in that the end face, deviating from the abutting bolt (7), of the fixing plate (15) is connected with a rotation resisting plate (17) through a plurality of springs (16), the end face, deviating from the springs (16), of the rotation resisting plate (17) is provided with an anti-skidding pad (18), and the anti-skidding pad (18) and the abutting bolt (7) are abutted to each other.

6. The flange well sealing device for the floor penetrating dewatering well in the foundation pit according to claim 1, characterized in that: fixed pipe (6) can be dismantled through connecting piece (19) and connect on annular plate (4), connecting piece (19) are including setting up a plurality of connection pieces (20) in fixed pipe (6) outer fringe, and are a plurality of wear to establish respectively on connection piece (20) and threaded connection has connecting bolt (21), correspond on annular plate (4) and seted up a plurality of and connecting bolt (21) assorted thread groove (22), a plurality of connecting bolt (21) are threaded connection in a plurality of thread groove (22) respectively.

7. The flange well sealing device for the floor penetrating dewatering well in the foundation pit according to claim 6, characterized in that: a plurality of positioning grooves (23) matched with the connecting sheet (20) are correspondingly formed in the annular plate (4), and guide grooves (24) are obliquely formed in the notches of the positioning grooves (23) respectively; when the connecting pieces (20) are correspondingly inserted into the positioning grooves (23), the connecting bolts (21) are aligned with the thread grooves (22).

8. The flange well sealing device for the floor penetrating dewatering well in the foundation pit according to claim 7, characterized in that: magnetic sheets (25) are respectively embedded at the bottoms of the positioning grooves (23), and the connecting sheets (20) are respectively and correspondingly adsorbed on the magnetic sheets (25).