CN214883777U - Foundation pit or foundation trench dewatering system applied to building construction - Google Patents

Abstract

The application relates to a foundation pit or foundation trench dewatering system applied to building construction, which relates to the technical field of building foundation pit drainage and comprises an installation box with an open bottom, a drainage pipe with one end inserted into the installation box and capable of sliding in the installation box along the vertical direction, a water suction pump communicated with one end of the drainage pipe far away from the installation box, two rows of universal wheels installed at the bottom of the installation box and a turnover assembly used for driving the universal wheels to turn over along the vertical direction; still including setting up in the buffering subassembly of install bin bottom, the buffering subassembly is including installing in the solid fixed ring of install bin lower surface, rigid coupling in a plurality of buffer spring of solid fixed ring lower surface and while rigid coupling in the buffering ring of a plurality of buffer spring lower extreme, gu fixed ring, buffer spring and the equal vertical setting of buffering ring, just buffer spring sets up along solid fixed ring's circumference interval. This application has the in-process that is convenient for alleviate the install bin and descends, and the effect of the rigidity impact between the ground.

Description

Foundation pit or foundation trench dewatering system applied to building construction

Technical Field

The application relates to the technical field of building foundation pit drainage, in particular to a foundation pit or foundation trench dewatering system applied to building construction.

Background

The energy-saving building is a low-energy-consumption building designed by engineers by utilizing a basic method of climate design and energy conservation and after researching building planning subareas, groups and monomers, building orientation, space, solar radiation, wind direction and external space environment. In the process of building an energy-saving building, a foundation pit or a foundation trench needs to be excavated.

When the foundation pit or the foundation trench is excavated, underground water may continuously infiltrate into the foundation pit or the foundation trench, and when the water level of the underground water is too high, if the water level is not lowered in time, the construction conditions are deteriorated, soil wall collapse is caused, the bearing capacity of the foundation is also affected, and in case of serious conditions, a sand flowing phenomenon is even generated. Therefore, in the earthwork construction, it is very important to make precipitation work of a construction foundation pit or a foundation trench and keep the soil body dry.

At present, a well point dewatering method is mainly adopted in construction to carry out dewatering operation on a foundation pit, a certain number of drainage wells are buried around the foundation pit before the foundation pit is excavated, and when water seepage exists in the foundation pit, water in the foundation pit is transferred into the drainage wells by using water pumping equipment.

In the related technology, reference can be made to a Chinese utility model patent with an authorization bulletin number of CN212835460U, which discloses a foundation pit or foundation trench dewatering system applied to building construction, and the system comprises an installation box, a drain pipe arranged in the installation box along the vertical direction and a water suction pump communicated with one end of the drain pipe far away from the installation box, wherein the bottom of the installation box is in an open arrangement, a driving component for driving a water inlet end of the drain pipe to move along the vertical direction is arranged in the installation box, and a water outlet end of the water suction pump is positioned outside the foundation pit; rolling wheels are arranged at four end corners of the bottom of the installation box; four vertical rods are arranged in the installation box, the top ends of the vertical rods are hinged to the inner wall of the installation box, four rolling wheels are respectively arranged at the bottom ends of the four vertical rods, two vertical rods are in a group, a cross rod is connected between one group of vertical rods, a dovetail groove is arranged at the top of the installation box, two dovetail blocks are connected in the dovetail groove in a sliding manner, a sliding block is arranged on the side wall of each dovetail block, a rotating rod is connected between each cross rod and each sliding block, one end of each rotating rod is hinged to the side wall of each cross rod, the other end of each rotating rod is hinged to the side wall of each sliding block, a bidirectional screw rod is arranged at the top of the installation box in a direction perpendicular to the cross rods and is horizontally arranged, two ends of each bidirectional screw rod are respectively rotatably supported on two opposite inner walls of the installation box, a rotating motor is arranged on the side wall of the installation box, an output shaft of the rotating motor is coaxially connected to the bidirectional screw rod, the bidirectional screw rod respectively penetrates through the two sliding blocks in a threaded manner, the bidirectional screw rod is used for driving the two sliding blocks to approach or depart from each other.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when rotating motor start drive universal wheel and when removing to the installation box inside, in the twinkling of an eye when universal wheel and ground separation, the lower surface of install bin is pressed to ground in the twinkling of an eye under the action of gravity of install bin, and the impact force is great to cause the lower surface of install bin to take place the condition of serious wear easily.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the reduction of the rigid impact between the installation box and the ground in the descending process, the application provides a foundation pit or foundation trench dewatering system applied to building construction.

The application provides a be applied to foundation ditch or foundation ditch precipitation system of construction adopts following technical scheme:

a foundation pit or foundation trench dewatering system applied to building construction comprises an installation box with an open bottom, a drain pipe, a water suction pump, two rows of universal wheels and a turnover assembly, wherein one end of the drain pipe is inserted into the installation box and can slide in the installation box along the vertical direction; still including setting up in the buffering subassembly of install bin bottom, the buffering subassembly is including installing in the solid fixed ring of install bin lower surface, rigid coupling in a plurality of buffer spring of solid fixed ring lower surface and while rigid coupling in the buffering ring of a plurality of buffer spring lower extreme, gu fixed ring, buffer spring and the equal vertical setting of buffering ring, just buffer spring sets up along solid fixed ring's circumference interval.

Through adopting above-mentioned technical scheme, the in-process of upset subassembly drive universal wheel upwards upset when the universal wheel is about to separate with ground, the lower surface of buffering ring earlier with ground contact, when the universal wheel continues upwards upset, buffer spring is compressed, under buffer spring's effect, plays the effect of buffering to the install bin, and then has alleviateed the rigid impact of install bin and ground.

Preferably, the lower end face of the installation box is provided with a slot for inserting a fixing ring, two groups of clamping assemblies for clamping the fixing ring are arranged in each side edge of the slot, each side edge of the fixing ring is positioned between the two groups of clamping assemblies, each group of clamping assemblies comprises a clamping block and a clamping spring, the clamping block is arranged between the fixing ring and the clamping spring, one end of the clamping spring is fixedly connected to the end face, away from the fixing ring, of the clamping block, and the other end of the clamping spring is fixedly connected to the inner side wall, facing the fixing ring, of the slot; the upper end of the fixing ring and the corners close to the two groups of clamping assemblies are respectively provided with bevel edges.

Through adopting above-mentioned technical scheme, when needs will cushion the subassembly and install on the install bin, operating personnel can inject solid fixed ring's upper end in the slot, upwards promote solid fixed ring after that, gu fixed ring's hypotenuse extrusion presss from both sides the terminal surface of tight piece, thereby make two relative tight pieces of clamp remove to the direction of keeping away from each other simultaneously, clamp spring is in by compression state this moment, when the up end of solid fixed ring was held up with the interior diapire butt of slot, press from both sides tight piece and support solid fixed ring's lateral wall under clamp spring's effect, thereby fix solid fixed ring in the slot, and then will cushion the subassembly and install on the install bin.

Preferably, the upper surface rigid coupling of cushion ring has a plurality of axial vertical guide bars, and is a plurality of the top of guide bar all pegs graft in solid fixed ring's lower surface, and the top of guide bar can be followed vertical slip in solid fixed ring.

Through adopting above-mentioned technical scheme, the setting up of guide bar has restricted that the buffering ring can only follow vertical removal to the probability that the skew takes place to the horizontal direction has been reduced to the buffering ring.

Preferably, the lower surface of the fixing ring is provided with a sliding groove for the guide rod to slide, the top end of the guide rod is fixedly connected with a stop block, the stop block slides in the sliding groove along the vertical direction, and a limiting ring for limiting the stop block is arranged at the joint of the sliding groove and the lower surface of the installation box.

Through adopting above-mentioned technical scheme, the cooperation setting of spacing ring and dog has reduced the probability that guide bar and solid fixed ring's spout take place to separate.

Preferably, each stopper's up end all rigid coupling has the blotter.

Through adopting above-mentioned technical scheme, the blotter is made by rubber, has good elastic property to alleviate the rigid contact between dog and the interior diapire of slot.

Preferably, the outer side wall of the lower end face of the buffer ring is fixedly sleeved with a supporting seat, and the lower end face of the supporting seat is flush with the lower end face of the buffer ring.

Through adopting above-mentioned technical scheme, being provided with of supporting seat does benefit to the area of contact between increase cushion ring and the ground to make the install bin place subaerial more firmly.

Preferably, the upset subassembly includes rigid coupling in the driving motor of install bin lateral wall, driving motor's output shaft extends to in the install bin and the rigid coupling has rather than vertically rocker, the expansion end of rocker rotates and is connected with two cross arrangement's connecting rod, two inside walls that the bottom of install bin is relative all rotate and are connected with the fly leaf, just the universal wheel rotates and connects in the expansion end of fly leaf, the connecting rod sets up with the fly leaf one-to-one, and every the one end that the rocker was kept away from to the connecting rod articulates in the inside wall that is located the fly leaf of connecting rod homonymy.

Through adopting above-mentioned technical scheme, when driving motor during operation, driving motor's output shaft rotates the drive rocker and rotates, and the rocker rotates two connecting rods of drive and removes simultaneously to drive two fly leafs and overturn simultaneously, and then drive two rows of universal wheels and follow vertical upset simultaneously, the motion process is stable and high-efficient.

Preferably, the side wall of the installation box is provided with a visual window convenient for observing the inside of the installation box.

Through adopting above-mentioned technical scheme, the upset state of the universal wheel of being convenient for in time observing of operating personnel of setting up of visual window, simultaneously, the water level variation in the foundation ditch of also being convenient for in time observing of operating personnel.

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

1. in the process that the turnover assembly drives the universal wheel to turn upwards, when the universal wheel is about to be separated from the ground, the lower surface of the buffer ring is firstly contacted with the ground, and when the universal wheel continues to turn upwards, the buffer spring is compressed and plays a role in buffering the installation box under the action of the buffer spring, so that the rigid impact of the installation box and the ground is reduced;

2. when the buffer assembly needs to be installed on the installation box, an operator can insert the upper end of the fixing ring into the slot and then push the fixing ring upwards, the bevel edge of the fixing ring extrudes the end face of the clamping block, so that the two opposite clamping blocks move towards the direction away from each other at the same time, the clamping spring is in a compressed state at the moment, and when the upper end face of the fixing ring is abutted against the inner bottom wall of the slot, the clamping block abuts against the side wall of the fixing ring under the action of the clamping spring, so that the fixing ring is fixed in the slot, and the buffer assembly is installed on the installation box;

3. when driving motor during operation, driving motor's output shaft rotates the drive rocker and rotates, and the rocker rotates two connecting rods of drive and moves simultaneously to drive two fly leafs and overturn simultaneously, and then drive two rows of universal wheels and follow vertical upset simultaneously, the motion process is stable and high-efficient.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram of the flip assembly in the embodiment of the present application.

Fig. 3 is a schematic structural view of the guide bar, the slide groove, and the clamp assembly in the embodiment of the present application.

Fig. 4 is a schematic structural diagram of a lifting assembly in an embodiment of the present application.

Description of reference numerals: 1. installing a box; 11. a limiting ring; 12. a through hole; 2. a drain pipe; 3. a water pump; 4. a universal wheel; 5. a turnover assembly; 51. a drive motor; 52. a rocker; 53. a connecting rod; 54. a movable plate; 6. a lifting assembly; 61. a power motor; 62. a worm; 63. a worm gear; 64. a threaded bushing; 65. a limiting strip; 7. a buffer assembly; 71. a fixing ring; 711. a bevel edge; 712. a flange ring plate; 72. a buffer spring; 73. a buffer ring; 731. a supporting seat; 74. a guide bar; 741. a stopper; 75. a cushion pad; 8. a clamping assembly; 81. a clamping block; 811. a bevel; 82. a clamping spring; 9. a visual window; 101. a slot; 102. a guide groove; 103. a chute; 104. a limiting groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses foundation ditch or foundation ditch precipitation system for construction. Referring to fig. 1, the foundation pit or foundation trench precipitation system applied to building construction includes an installation box 1, a drain pipe 2, a suction pump 3, and universal wheels 4. Installation box 1 is rectangle box structure, and the opening of installation box 1 sets up in the bottom of installation box 1. One end of the drain pipe 2 is inserted into the installation box 1, and the other end of the drain pipe 2 extends to the outer side of the installation box 1 and is communicated with a water suction pump 3. The universal wheels 4 are arranged in two rows, and the two rows of universal wheels 4 are sequentially connected to two opposite sides of the bottom of the installation box 1 in a rotating mode. The visual window 9 is installed to the lateral wall of install bin 1 for in time observe the water level in the foundation ditch.

Referring to fig. 1 and 2, the installation box 1 is provided with a turnover assembly 5, a lifting assembly 6 and a buffering assembly 7, the turnover assembly 5 is used for driving two rows of universal wheels 4 to turn vertically at the same time, the lifting assembly 6 is used for driving the water drainage pipe 2 to move vertically, and when the universal wheels 4 are separated from the ground, the buffering assembly 7 is used for reducing the rigid impact between the bottom of the installation box 1 and the ground.

Referring to fig. 1 and 2, the turnover assembly 5 includes a driving motor 51, a rocker 52, a connecting rod 53 and a movable plate 54, the driving motor 51 is installed on the outer side wall of the installation box 1, an output shaft of the driving motor 51 extends into the installation box 1 and is fixedly connected with the rocker 52, an axial direction of the output shaft of the driving motor 51 is horizontally arranged, and a length direction of the rocker 52 is perpendicular to an axial direction of the output shaft of the driving motor 51. Two movable plates 54 are arranged, the two movable plates 54 are symmetrically arranged on two sides of the bottom of the installation box 1, one end of one movable plate 54 is hinged to the inner side wall on the left side of the installation box 1, and one end of the other movable plate 54 is hinged to the inner side wall on the right side of the installation box 1.

Referring to fig. 2, the movable ends of the two movable plates 54 are oppositely disposed and can be turned to the same horizontal plane at the same time, and the two movable plates 54 are coplanar. The universal wheels 4 are arranged corresponding to the movable plate 54 one by one, two universal wheels 4 are arranged in one row, two universal wheels 4 in one row are arranged on the movable end surface of the movable plate 54 at intervals, and the universal wheels 4 are rotatably connected to the movable end surface of the movable plate 54. The number of the connecting rods 53 is two, one end of each of the two connecting rods 53 is simultaneously rotatably connected to one end of the rocker 52 far away from the driving motor 51, the two connecting rods 53 are located on the same side of the rocker 52, the other end of one rocker 52 is hinged to the inner side wall of the left side movable plate 54, and the other end of the other rocker 52 is hinged to the inner side wall of the right side movable plate 54.

Referring to fig. 1 and 3, the buffer assembly 7 is disposed at a lower side of the installation case 1, and the buffer assembly 7 includes a fixing ring 71, a buffer spring 72, and a buffer ring 73. The top end of the fixing ring 71 is integrally formed with a flange annular plate 712, the fixing ring 71, the buffer ring 73 and the flange annular plate 712 are all rectangular rings, the bottom end surface of the installation box 1 is provided with a slot 101, the slot 101 is a rectangular ring slot, and the flange annular plate 712 is inserted into the slot 101 of the installation box 1. The slot 101 of the installation box 1 is further provided with a clamping assembly 8, and the clamping assembly 8 is used for fixing the flange ring plate 712. The fixed ring 71, the buffer springs 72 and the buffer ring 73 are all vertically arranged, the buffer springs 72 are arranged in a plurality, and the buffer springs 72 are located between the fixed ring 71 and the buffer ring 73. Each side of the fixing ring 71 is provided with two buffer springs 72, the top end of each buffer spring 72 is fixedly connected to the lower end face of the fixing ring 71, and the bottom end of each buffer spring 72 is fixedly connected to the upper end face of the buffer ring 73. The lateral wall rigid coupling of cushion ring 73 bottom has supporting seat 731, and the cross-section of every side of supporting seat 731 is right trapezoid shape, and the lower terminal surface of supporting seat 731 flushes with the lower terminal surface of cushion ring 73, and the length of side of terminal surface is greater than the length of side of up end under supporting seat 731.

Referring to fig. 1 and 3, four axially vertical guide rods 74 are fixedly connected to the upper end surface of the cushion ring 73, each guide rod 74 is located between two adjacent springs, and the guide rods 74 are of a round rod structure. The lower end face of each side of the fixing ring 71 and the position corresponding to the guide rod 74 are both provided with a sliding groove 103, and the sliding groove 103 is a circular hole groove. The top end of guide bar 74 is fixedly connected with dog 741, the top end of dog 741 is fixedly connected with cushion 75, dog 741 and cushion 75 are disc structures, and dog 741 can slide in chute 103 along the vertical direction. The connecting position of the sliding groove 103 and the lower end face of the installation box 1 is fixedly connected with a limiting ring 11, the diameter of the stop 741 is larger than the inner diameter of the limiting ring 11, and the side wall of the guide rod 74 can slide relative to the inner side wall of the limiting ring 11. The buffer pad 75 is made of rubber and has a good elastic property, thereby reducing a rigid contact between the stopper 741 and the bottom wall of the slot 101.

Referring to fig. 1 and 3, the guide grooves 102 are formed in two opposite inner side walls of one side of the sliding groove 103, the center lines of the two guide grooves 102 on the same side coincide with each other, and the guide grooves 102 and the clamping assemblies 8 are arranged in a one-to-one correspondence manner. One side of the flange ring plate 712 corresponds to two sets of clamping assemblies 8, the two sets of clamping assemblies 8 are arranged in a mirror image manner with respect to one side of the flange ring plate 712, and one side of the flange ring plate 712 is located between the two sets of clamping assemblies 8. Each set of clamping assemblies 8 includes a clamping block 81 and a clamping spring 82, the clamping block 81 is disposed between the fixing ring 71 and the clamping spring 82, one end of the clamping spring 82 is fixedly connected to the end surface of the clamping block 81 away from the fixing ring 71, the other end of the clamping spring 82 is fixedly connected to the inner side wall of the guide groove 102 facing the fixing ring 71, and the clamping block 81 slides in the guide groove 102 along the horizontal direction. In order to insert the flange ring plate 712 between the two opposite clamping blocks 81, the top end of the flange ring plate 712 and the corners close to the two sets of clamping assemblies 8 are respectively provided with a bevel edge 711, and the corner of each clamping block 81 close to the end face of the flange ring plate 712 is also provided with a bevel 811 matched with the bevel edge 711.

Referring to fig. 1 and 4, the lifting assembly 6 includes a power motor 61, a worm 62, a worm wheel 63, a threaded sleeve 64 and a limiting strip 65, the power motor 61 is installed on the upper surface of the installation box 1, the power motor 61 is horizontally arranged, and the worm 62 is coaxially and fixedly connected to an output shaft of the power motor 61. The threaded sleeve 64 is sleeved on the outer side wall of the drain pipe 2, the side wall of the threaded sleeve 64 is provided with a limiting groove 104, the limiting groove 104 extends along the length direction of the threaded sleeve 64, and the limiting groove 104 is communicated with the upper end surface and the lower end surface of the threaded sleeve 64. Through hole 12 is opened to the roof of installing box 1, and threaded sleeve 64 slides in the through hole 12 of installing box 1 along vertical. The lateral wall rigid coupling of the through-hole 12 of install bin 1 has spacing 65, and spacing 65 extends along the length direction of through-hole 12, and can slide in the spacing groove 104 of threaded sleeve 64 along the vertical. The worm wheel 63 is sleeved on the outer side wall of the threaded sleeve 64 and is in threaded fit with the threaded sleeve 64, meanwhile, the worm wheel 63 is meshed with the worm 62, a rotating disc is fixedly connected to the bottom of the worm wheel 63 and embedded in the through hole 12 of the installation box 1, and the rotating disc can rotate relative to the through hole 12 of the installation box 1.

The embodiment of the application is applied to the foundation pit or the foundation trench precipitation system of building construction and has the following implementation principle:

when two fly leaf 54 all are vertical state, operating personnel promotes install bin 1 and moves to foundation ditch department, until aim at the foundation ditch with the open mouth of install bin 1, start driving motor 51 after that, driving motor 51's output shaft rotates drive rocker 52 and rotates, rocker 52 rotates two connecting rods 53 of drive and moves simultaneously, thereby drive two fly leaf 54 and overturn simultaneously, and then drive two rows of universal wheels 4 and overturn along vertical simultaneously, when universal wheel 4 will be promptly with ground separation, the lower surface of cushion ring 73 contacts with ground earlier, when universal wheel 4 continues upwards upset, buffer spring 72 is compressed, guide bar 74 promotes dog 741 and slides in the spout 103 of install bin 1 along vertical, under buffer spring 72's effect, play the effect of buffering to install bin 1, and then alleviateed the rigid impact of install bin 1 with ground.

And then the power motor 61 is started, the output shaft of the power motor 61 rotates to drive the worm 62 to rotate, the worm 62 rotates to drive the worm wheel 63 to rotate, the threaded sleeve 64 and the drain pipe 2 move downwards under the combined action of the worm wheel 63, the limiting strip 65 and the limiting groove 104 until the water inlet end of the drain pipe 2 is inserted into the foundation pit and contacts with accumulated water.

And finally, the water suction pump 3 is started to discharge accumulated water in the foundation pit, and a person in the socket can observe the water level change in the foundation pit through the visual window 9 in time, so that the position of the water inlet end of the water discharge pipe 2 in the foundation pit can be adjusted in time.

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 (8)

1. A foundation pit or foundation trench dewatering system applied to building construction comprises an installation box (1) with an open bottom, a drain pipe (2) with one end inserted into the installation box (1) and capable of sliding in the installation box (1) along the vertical direction, a water suction pump (3) communicated with one end of the drain pipe (2) far away from the installation box (1), two rows of universal wheels (4) installed at the bottom of the installation box (1) and a turnover assembly (5) used for driving the universal wheels (4) to turn over along the vertical direction; the method is characterized in that: still including setting up in buffer unit (7) of installing bin (1) bottom, buffer unit (7) including install in solid fixed ring (71), the rigid coupling of installing bin (1) lower surface in a plurality of buffer spring (72) of solid fixed ring (71) lower surface and buffer ring (73) of rigid coupling in a plurality of buffer spring (72) lower extreme simultaneously, gu fixed ring (71), buffer spring (72) and buffer ring (73) are equal vertical setting, just buffer spring (72) set up along the circumference interval of solid fixed ring (71).

2. A foundation pit or foundation pit dewatering system for use in building construction according to claim 1, wherein: the lower end face of the installation box (1) is provided with a slot (101) for inserting a fixing ring (71), two groups of clamping assemblies (8) for clamping the fixing ring (71) are arranged in each side edge of the slot (101), each side edge of the fixing ring (71) is located between the two groups of clamping assemblies (8), each group of clamping assemblies (8) comprises a clamping block (81) and a clamping spring (82), the clamping block (81) is arranged between the fixing ring (71) and the clamping spring (82), one end of the clamping spring (82) is fixedly connected to the end face, away from the fixing ring (71), of the clamping block (81), and the other end of the clamping spring (82) is fixedly connected to the inner side wall, facing the fixing ring (71), of the slot (101); the upper end of the fixing ring (71) and the corners close to the two groups of clamping components (8) are respectively provided with a bevel edge (711).

3. A foundation pit or foundation pit dewatering system for use in building construction according to claim 1, wherein: the upper surface rigid coupling of cushion ring (73) has a plurality of vertical guide bar (74) of axial, and is a plurality of the top of guide bar (74) is all pegged graft in the lower surface of solid fixed ring (71), and the top of guide bar (74) can be followed vertical slip in solid fixed ring (71).

4. A foundation pit or foundation pit dewatering system for use in building construction according to claim 1, wherein: the lower surface of the fixing ring (71) is provided with a sliding groove (103) for the guide rod (74) to slide, the top end of the guide rod (74) is fixedly connected with a stop block (741), the stop block (741) slides in the sliding groove (103) along the vertical direction, and a limiting ring (11) for limiting the stop block (741) is arranged at the joint of the sliding groove (103) and the lower surface of the installation box (1).

5. A foundation pit or foundation pit dewatering system for building construction according to claim 4, wherein: the upper end face of each block (741) is fixedly connected with a cushion pad (75).

6. A foundation pit or foundation pit dewatering system for use in building construction according to claim 1, wherein: the outer side wall of the lower end face of the buffer ring (73) is sleeved and fixed with a supporting seat (731), and the lower end face of the supporting seat (731) is flush with the lower end face of the buffer ring (73).

7. A foundation pit or foundation pit dewatering system for use in building construction according to claim 1, wherein: upset subassembly (5) include rigid coupling in driving motor (51) of install bin (1) lateral wall, the output shaft of driving motor (51) extends to in install bin (1) and the rigid coupling have rather than vertically rocker (52), the expansion end of rocker (52) rotates and is connected with connecting rod (53) of two cross arrangement, two inside walls that the bottom of install bin (1) is relative all rotate and are connected with fly leaf (54), just universal wheel (4) rotate and connect in the expansion end of fly leaf (54), connecting rod (53) and fly leaf (54) one-to-one set up, and every the one end that rocker (52) were kept away from in connecting rod (53) articulates in the inside wall that is located fly leaf (54) of connecting rod (53) homonymy.

8. A foundation pit or foundation pit dewatering system for use in building construction according to claim 7, wherein: the side wall of the installation box (1) is provided with a visible window (9) which is convenient for observing the inside of the installation box.

Images