CN113700002A

CN113700002A - Foundation ditch mouth steel construction supporting device after building foundation ditch is dug and is established

Info

Publication number: CN113700002A
Application number: CN202111016225.2A
Authority: CN
Inventors: 李德闽
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2021-11-26

Abstract

The invention discloses a steel structure supporting device for a foundation pit opening after excavation of a building foundation pit, which comprises a combined supporting steel plate and a base plate, wherein a cross rod is fixedly connected to the base plate, the cross rod is hinged with the combined supporting steel plate, a first sliding groove and a second sliding groove are formed in the upper end of the base plate, a first guide rod is rotatably connected in the first sliding groove, a second guide rod is fixedly connected in the second sliding groove, the upper part of the first guide rod is provided with a screw rod, a driving block is slidably connected in the first sliding groove, and the driving block is sleeved outside the screw rod and is in threaded connection with the screw rod. The invention can automatically increase the supporting force for the combined supporting steel plate, and simultaneously can remind workers of the possibility of collapse due to water seepage and thinning of soil on the side wall of the foundation pit, so that the supporting work of the side wall of the foundation pit can be dealt with in time, the thinned part of the soil on the side wall of the foundation pit can be drawn out, and concrete can be added to improve the stability of the side wall of the foundation pit.

Description

Foundation ditch mouth steel construction supporting device after building foundation ditch is dug and is established

Technical Field

The invention relates to the technical field of supporting devices, in particular to a steel structure supporting device for a foundation pit opening after a building foundation pit is dug.

Background

With the continuous development of social and economic conditions, the material level of people is improved, the building industry is greatly developed, wherein a foundation pit needs to be built firstly in building construction, but the foundation pit can cause the collapse of the side wall of the foundation pit in rainy days or loose soil, so that the problem needs to be solved by foundation pit support, and the foundation pit support is a supporting, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit.

At present, supporting devices on the market are various, a waterproof device is generally lacked, soil on the side wall of a foundation pit absorbs water and becomes thin and can also increase weight, so that the phenomenon of collapse can occur, most of the supporting effects on a supporting steel plate are enhanced in the prior art, but the main 'disease root' of collapse cannot be fundamentally solved, and when the weight of the soil absorbing water and becoming thin is continuously increased, the supporting steel plate can collapse; and current supporting device does not have prevention reminding device, absorbs water to the earth of foundation ditch lateral wall promptly and becomes thin and increase the reminding device of weight, and it can be through the quick warning staff of warning light, and the staff can handle the part of foundation ditch support in advance, avoids appearing accident's emergence.

Therefore, the supporting device for the steel structure of the foundation pit opening after the foundation pit of the building is excavated is designed to solve the problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a steel structure supporting device for a foundation pit opening after excavation of a building foundation pit.

In order to achieve the purpose, the invention adopts the following technical scheme:

a steel structure supporting device for a foundation pit opening after excavation of a building foundation pit comprises a combined supporting steel plate and a bottom plate, wherein a cross rod is fixedly connected to the bottom plate and is hinged to the combined supporting steel plate, a first sliding groove and a second sliding groove are formed in the upper end of the bottom plate, a first guide rod is rotatably connected to the first sliding groove, a second guide rod is fixedly connected to the second sliding groove, the upper portion of the first guide rod is provided with a screw rod, a driving block is slidably connected to the first sliding groove and sleeved outside the screw rod and in threaded connection with the screw rod, moving blocks are slidably connected to the first sliding groove and the second sliding groove respectively, supporting rods are rotatably connected between the two moving blocks and the combined supporting steel plate respectively, a first spring is fixedly connected between the moving blocks and the driving block, and the first spring is sleeved outside the first guide rod, the inner wall of the second sliding groove is fixedly connected with a positioning block, a second spring is fixedly connected between the positioning block and the moving block, the second spring is sleeved outside the second guide rod, a transmission mechanism is arranged between the moving block in the second sliding groove and the first guide rod, and the combined supporting steel plate is provided with a collapse prevention warning device and a sludge discharge device.

Preferably, the support rods are obliquely arranged, the lower ends of the support rods are hinged to the moving block, and the upper ends of the support rods are hinged to the combined supporting steel plate.

Preferably, the transmission mechanism comprises a rack plate fixed with the moving block in the second sliding groove, a first bevel gear is mounted on the first guide rod, a transmission rod penetrating through the bottom plate is mounted between the first sliding groove and the second sliding groove, the transmission rod is rotatably connected with the bottom plate, a second bevel gear is mounted on the transmission rod and meshed with the first bevel gear, a gear is fixedly connected to the other end of the transmission rod, and the gear is meshed with the rack plate.

Preferably, the side channel of prevention warning device facility on the steel sheet is strutted in the combination to the collapse, sliding connection has the stripper plate in the side channel, a plurality of third springs of fixedly connected with between stripper plate and the side channel, fixedly connected with connecting rod on the stripper plate, fixedly connected with L template on the steel sheet is strutted in the combination, install the connecting block on the connecting rod, insulating installation has first L type electric contact on the connecting block, insulating installation has second L type electric contact on the L template, install the insulating rubber cover between connecting block and the L template, install alarm device on the steel sheet is strutted in the combination.

Preferably, the first L-shaped electric contact piece and the second L-shaped electric contact piece are electrically connected with the alarm device, and the first L-shaped electric contact piece and the second L-shaped electric contact piece are arranged in an occlusion manner.

Preferably, arrange the mud device and strut the mud collecting vat on the steel sheet including setting up in the combination, the combination is strutted and is rotated on the steel sheet and be connected with the dwang, the dwang extends to in the mud collecting vat, just a plurality of broken poles of fixedly connected with on the dwang, install motor and sludge pump on the steel sheet is strutted in the combination, be equipped with link gear between motor, dwang, the sludge pump, the sludge pipe is installed to the end of intaking of sludge pump, the sludge pipe extends to in the mud collecting vat, the grout inlet pipe is installed to the upper end that the steel sheet was strutted in the combination.

Preferably, the linkage mechanism comprises two first driving wheels arranged at the output end of the motor and the shaft end of the sludge pump, a second driving wheel is arranged on the rotating rod, and the driving wheels are connected with the two first driving wheels through belts.

Preferably, the first L-shaped electric contact piece and the second L-shaped electric contact piece are electrically connected with the motor.

Compared with the prior art, the invention has the beneficial effects that:

1. the earth of foundation ditch lateral wall can absorb water and thin and can also increase weight to the steel sheet is strutted in the extrusion combination, thereby for extrusion bracing piece and movable block removal, thereby realize second bevel gear, first guide bar, screw rod rotation, thereby the drive driver block removes, the first spring of drive block removal extrusion, thereby produce pressure to movable block and bracing piece, make the bracing piece strut the holding power increase of steel sheet is strutted to the combination, thereby can carry out stable the strutting to the lateral wall of basic pithead.

2. The first spring and the second spring are arranged to buffer the supporting rod, so that the supporting rod cannot be stressed, deformed or broken due to the inclination of the combined supporting steel plate.

3. If it is the condition that the earth of foundation ditch lateral wall can absorb water and become rare serious, then the stripper plate can remove to the foundation ditch lateral wall under the effect of third spring, and then drive the connecting rod, the connecting block, first L type electric contact removes and offsets with second L type electric contact, alarm device work this moment, can remind the staff, the earth of foundation ditch lateral wall leads to the combination to strut steel sheet pressure increase because of rainwater infiltration becomes rare, the staff can strut the steel sheet through increasing new support piece to the combination, prepare simultaneously and take precautions against work.

4. The motor circular telegram, the motor circular telegram back, under the effect of first drive wheel, secondary drive wheel and belt, realize dwang and sludge pump work, dwang work drives broken pole and rotates to can carry out broken stirring with the rare earth, simultaneously, sludge pump work can be with flowing into the broken rare earth of mud collecting vat and inhale away the discharge through the sludge pipe, thereby can reduce the pressure that the steel sheet was strutted to the combination to the rare earth.

5. Because the part between the side wall of the foundation pit and the combined supporting steel plate is evacuated, a worker can fill concrete between the side wall of the foundation pit and the combined supporting steel plate through the cement paste feeding pipe by using a concrete pump and continuously fill the hollow part so as to ensure the stability of the side wall of the foundation pit and prevent the collapse once again.

In conclusion, the combined supporting steel plate can automatically increase the supporting force for increasing the combined supporting steel plate, and meanwhile, workers can be reminded that the soil on the side wall of the foundation pit is seeped and becomes thin and collapse is possible, so that the supporting work of the side wall of the foundation pit can be responded to in time, the thin part of the soil on the side wall of the foundation pit can be drawn out, and concrete can be added to improve the stability of the side wall of the foundation pit.

Drawings

Fig. 1 is a schematic structural diagram of a steel structure supporting device at a foundation pit opening after excavation of a building foundation pit;

FIG. 2 is a top view of a bottom plate in the steel structure supporting device at the foundation pit opening after the foundation pit of the building is excavated;

fig. 3 is a schematic structural view of a part of a steel structure supporting device at a foundation pit opening after the foundation pit of the building is excavated, according to the invention;

fig. 4 is a schematic structural diagram of a motor in the steel structure supporting device at the foundation pit opening after the foundation pit of the building is excavated.

In the figure: the device comprises a combined supporting steel plate, a bottom plate 2, a first sliding groove 3, a first guide rod 4, a moving block 5, a support rod 6, a screw rod 7, a driving block 8, a first spring 9, a first bevel gear 10, a second bevel gear 11, a second sliding groove 12, a second guide rod 13, a second spring 14, a positioning block 15, a rack plate 16, a gear 17, a transmission rod 18, a side groove 19, a squeezing plate 20, a third spring 21, a connecting rod 22, a plate 23L, a connecting block 24, a first L-shaped electric contact 25, an insulating rubber sleeve 26, a second L-shaped electric contact 27, an alarm device 28, a crushing rod 29, a motor 30, a sludge pipe 31, a sludge pump 32, a first driving wheel 33, a second driving wheel 34, a cement slurry feeding pipe 35, a sludge collecting tank 36, a belt 37 and a rotating rod 38.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, the steel structure supporting device for the foundation pit opening after the excavation of the building foundation pit comprises a combined supporting steel plate 1 and a bottom plate 2, wherein a mounting hole penetrates through the bottom plate 2, and the bottom plate 2 can be fixed in the foundation pit; fixedly connected with horizontal pole on the bottom plate 2, the horizontal pole is strutted steel sheet 1 with the combination and is articulated to be connected, the upper end of bottom plate 2 is equipped with first sliding tray 3 and second sliding

tray

12, 3 internal rotations in first sliding tray are connected with first guide bar 4, fixedly connected with second guide bar 13 in the second sliding

tray

12, 4 upper portions of first guide bar are screw rod 7, sliding connection has drive block 8 in first sliding

tray

3, 8 covers in the outside of screw rod 7 and rather than threaded connection of drive block, drive block 8 can't slide in first sliding tray 3, consequently, can realize the removal of drive block 8 when screw rod 7 rotates.

The first sliding groove 3 and the second sliding groove 12 are both connected with moving blocks 5 in a sliding manner, supporting rods 6 are rotatably connected between the two moving blocks 5 and the combined supporting steel plate 1, the supporting rods 6 are obliquely arranged, the lower ends of the supporting rods 6 are hinged with the moving blocks 5, and the upper ends of the supporting rods 6 are hinged with the combined supporting steel plate 1; a first spring 9 is fixedly connected between the moving block 5 and the driving block 8, the first spring 9 is sleeved outside the first guide rod 4, a positioning block 15 is fixedly connected to the inner wall of the second sliding groove 12, a second spring 14 is fixedly connected between the positioning block 15 and the moving block 5, and the second spring 14 is sleeved outside the second guide rod 13.

A transmission mechanism is arranged between the moving block 5 in the second sliding groove 12 and the first guide rod 4, the transmission mechanism comprises a rack plate 16 fixed with the moving block 5 in the second sliding groove 12, a first bevel gear 10 is installed on the first guide rod 4, a transmission rod 18 penetrating through the bottom plate 2 is installed between the first sliding groove 3 and the second sliding groove 12, the transmission rod 18 is rotatably connected with the bottom plate 2, a second bevel gear 11 is installed on the transmission rod 18, the second bevel gear 11 is meshed with the first bevel gear 10, a gear 17 is fixedly connected to the other end of the transmission rod 18, the gear 17 is meshed with the rack plate 16, and a collapse prevention warning device and a sludge discharge device are installed on the combined supporting steel plate 1.

The collapse prevention warning device comprises a side groove 19 formed in a combined supporting steel plate 1, an extrusion plate 20 is connected in the side groove 19 in a sliding mode, a plurality of third springs 21 are fixedly connected between the extrusion plate 20 and the side groove 19, a connecting rod 22 is fixedly connected to the extrusion plate 20, an L-shaped plate 23 is fixedly connected to the combined supporting steel plate 1, a connecting block 24 is installed on the connecting rod 22, a first L-shaped electric contact piece 25 is installed on the connecting block 24 in an insulating mode, a second L-shaped electric contact piece 27 is installed on the L-shaped plate 23 in an insulating mode, an insulating rubber sleeve 26 is installed between the connecting block 24 and the L-shaped plate 23, an alarm device 28 is installed on the combined supporting steel plate 1, the first L-shaped electric contact piece 25 and the second L-shaped electric contact piece 27 are electrically connected with the alarm device 28, and the first L-shaped electric contact piece 25 and the second L-shaped electric contact piece 27 are arranged in an occlusion mode.

Mud discharging device is including setting up the sludge collection groove 36 on the combination support steel sheet 1, the combination is strutted and is rotated on the steel sheet 1 and be connected with dwang 38, dwang 38 extends to in the sludge collection groove 36, and a plurality of broken poles 29 of fixedly connected with on the dwang 38, install motor 30 and sludge pump 32 on the combination support steel sheet 1, motor 30, dwang 38, be equipped with link gear between the sludge pump 32, sludge pipe 31 is installed to the end of intaking of sludge pump 32, sludge pipe 31 extends to in the sludge collection groove 36, grout inlet pipe 35 is installed to the upper end that the combination was strutted steel sheet 1.

The linkage mechanism comprises two first driving wheels 33 arranged at the output end of the motor 30 and the shaft end of the sludge pump 32, a second driving wheel 34 is arranged on the rotating rod 38, the driving wheels 34 are connected with the two first driving wheels 33 through belts 37, and the first L-shaped electric contact piece 25 and the second L-shaped electric contact piece 27 are electrically connected with the motor 30.

When the combined supporting steel plate 1 is used, the combined supporting steel plate 1 is abutted against the side wall of the foundation pit opening until the extrusion plate 20 is extruded into the side groove 19, the first L-shaped electric contact piece 25 is separated from the second L-shaped electric contact piece 27, then the bottom plate 2 is fixed at the inner bottom of the foundation pit, and the combined supporting steel plate 1 can be stably supported through the support rod 6;

if in rainy days, the rainwater permeates the soil layer and flows downwards, the soil on the side wall of the foundation pit absorbs water and becomes thin and can also increase the weight, thereby extruding the combined supporting steel plate 1, the combined supporting steel plate 1 rotates by taking the connecting part of the cross bars as the circle center, thereby moving the pressing support rod 6 and the moving block 5, the moving block 5 moves to press the first spring 9 and the second spring 14, meanwhile, the moving block 5 moves to drive the rack plate 16 to move, the rack plate 16 moves to drive the gear 17 and the transmission rod 18 to rotate, thereby realizing the rotation of the second bevel gear 11, the first bevel gear 10, the first guide rod 4 and the screw 7, thereby driving the driving block 8 to move, the driving block 8 moves to press the first spring 9, thereby generating pressure to the moving block 5 and the supporting rod 6, the supporting force of the supporting rod 6 on the combined supporting steel plate 1 is increased, so that the side wall of the foundation pit opening can be stably supported; meanwhile, the first spring 9 and the second spring 14 are arranged to buffer the support rod 6, so that the support rod 6 cannot be stressed, deformed or broken due to the inclination of the combined support steel plate 1;

if the condition that the soil on the side wall of the foundation pit absorbs water and becomes thin seriously, the extrusion plate 20 can move towards the side wall of the foundation pit under the action of the third spring 21, so as to drive the connecting rod 22, the connecting block 24 and the first L-shaped electric contact piece 25 to move, the first L-shaped electric contact piece 25 moves to abut against the second L-shaped electric contact piece 27, at the moment, the alarm device 28 works to remind a worker, the pressure of the combined supporting steel plate 1 is increased due to the fact that the soil on the side wall of the foundation pit is thin due to rainwater infiltration, the worker can support the combined supporting steel plate 1 by adding a new support piece, and meanwhile, the prevention work is ready;

meanwhile, the motor 30 is electrified, after the motor 30 is electrified, the rotating rod 38 and the sludge pump 32 work under the action of the first driving wheel 33, the second driving wheel 34 and the belt 37, the rotating rod 38 works to drive the crushing rod 29 to rotate, so that the sludge can be crushed and stirred, meanwhile, the sludge pump 32 works to suck and discharge the crushed sludge flowing into the sludge collecting tank 36 through the sludge pipe 31, and the pressure of the sludge on the combined supporting steel plate 1 can be reduced;

because the part between the side wall of the foundation pit and the combined supporting steel plate 1 is evacuated, a worker can fill concrete between the side wall of the foundation pit and the combined supporting steel plate 1 through the cement slurry feeding pipe 35 by using a concrete pump, and continuously fill the hollow part to ensure the stability of the side wall of the foundation pit and prevent the collapse once again.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A steel structure supporting device for a foundation pit opening after excavation of a building foundation pit comprises a combined supporting steel plate (1) and a base plate (2), wherein a cross rod is fixedly connected to the base plate (2) and is hinged to the combined supporting steel plate (1), and the steel structure supporting device is characterized in that a first sliding groove (3) and a second sliding groove (12) are arranged at the upper end of the base plate (2), a first guide rod (4) is rotatably connected to the first sliding groove (3), a second guide rod (13) is fixedly connected to the second sliding groove (12), a screw rod (7) is arranged at the upper part of the first guide rod (4), a driving block (8) is slidably connected to the first sliding groove (3), the driving block (8) is sleeved outside the screw rod (7) and is in threaded connection with the screw rod, moving blocks (5) are slidably connected to the first sliding groove (3) and the second sliding groove (12), the combined supporting device is characterized in that supporting rods (6) are rotatably connected between the two moving blocks (5) and the combined supporting steel plate (1), first springs (9) are fixedly connected between the moving blocks (5) and the driving blocks (8), the first springs (9) are sleeved outside the first guide rods (4), positioning blocks (15) are fixedly connected to the inner wall of the second sliding groove (12), second springs (14) are fixedly connected between the positioning blocks (15) and the moving blocks (5), the second springs (14) are sleeved outside the second guide rods (13), a transmission mechanism is arranged between the moving blocks (5) in the second sliding groove (12) and the first guide rods (4), and a collapse prevention warning device and a sludge discharge device are mounted on the combined supporting steel plate (1).

2. The steel structure supporting device for the foundation pit opening after excavation of the building foundation pit according to claim 1, wherein the supporting rods (6) are arranged obliquely, the lower ends of the supporting rods (6) are hinged with the moving block (5), and the upper ends of the supporting rods (6) are hinged with the combined supporting steel plate (1).

3. The supporting device for the steel structure of the foundation pit opening after the foundation pit of the building is excavated according to claim 1, wherein the transmission mechanism comprises a rack plate (16) fixed with a moving block (5) in a second sliding groove (12), a first bevel gear (10) is installed on the first guide rod (4), a transmission rod (18) penetrating through a bottom plate (2) is installed between the first sliding groove (3) and the second sliding groove (12), the transmission rod (18) is rotatably connected with the bottom plate (2), a second bevel gear (11) is installed on the transmission rod (18), the second bevel gear (11) is meshed with the first bevel gear (10), a gear (17) is fixedly connected to the other end of the transmission rod (18), and the gear (17) is meshed with the rack plate (16).

4. The supporting device for the steel structure of the foundation pit opening after the excavation of the building foundation pit according to claim 1, wherein the collapse prevention warning device is provided with side grooves (19) on a combined supporting steel plate (1), extrusion plates (20) are slidably connected in the side grooves (19), a plurality of third springs (21) are fixedly connected between the extrusion plates (20) and the side grooves (19), connecting rods (22) are fixedly connected on the extrusion plates (20), L-shaped plates (23) are fixedly connected on the combined supporting steel plate (1), connecting blocks (24) are installed on the connecting rods (22), first L-shaped electric contact plates (25) are installed on the connecting blocks (24) in an insulating manner, second L-shaped electric contact plates (27) are installed on the L-shaped plates (23) in an insulating manner, and insulating rubber sleeves (26) are installed between the connecting blocks (24) and the L-shaped plates (23), and an alarm device (28) is arranged on the combined supporting steel plate (1).

5. The supporting device for the steel structure of the foundation pit opening after the foundation pit of the building is excavated according to claim 4, wherein the first L-shaped electric contact piece (25) and the second L-shaped electric contact piece (27) are electrically connected with the alarm device (28), and the first L-shaped electric contact piece (25) and the second L-shaped electric contact piece (27) are arranged in an occlusion manner.

6. The steel structure supporting device for the foundation pit opening after the foundation pit of the building is excavated according to claim 4, it is characterized in that the sludge discharge device comprises a sludge collecting tank (36) arranged on the combined supporting steel plate (1), the combined supporting steel plate (1) is rotatably connected with a rotating rod (38), the rotating rod (38) extends into the sludge collecting tank (36), a plurality of crushing rods (29) are fixedly connected on the rotating rod (38), a motor (30) and a sludge pump (32) are installed on the combined supporting steel plate (1), a linkage mechanism is arranged among the motor (30), the rotating rod (38) and the sludge pump (32), a sludge pipe (31) is arranged at the water inlet end of the sludge pump (32), the sludge pipe (31) extends into a sludge collecting tank (36), and a cement slurry feeding pipe (35) is arranged at the upper end of the combined supporting steel plate (1).

7. The supporting device for the steel structure of the foundation pit opening after the foundation pit is excavated in the building according to claim 6, wherein the linkage mechanism comprises two first driving wheels (33) arranged at the output end of the motor (30) and the shaft end of the sludge pump (32), a second driving wheel (34) is arranged on the rotating rod (38), and the driving wheels (34) and the two first driving wheels (33) are connected through a belt (37).

8. The supporting device for the steel structure of the foundation pit opening after the foundation pit of the building is excavated according to claim 6, wherein the first L-shaped electric contact piece (25) and the second L-shaped electric contact piece (27) are electrically connected with a motor (30).