CN213267908U

CN213267908U - Foundation pit supporting structure

Info

Publication number: CN213267908U
Application number: CN202021854718.4U
Authority: CN
Inventors: 孟凡杰; 谢毅; 罗亮; 刘婷
Original assignee: Shenzhen Pengcheng Geotechnical Technology Co ltd
Current assignee: Shenzhen Pengcheng Geotechnical Technology Co ltd
Priority date: 2020-08-29
Filing date: 2020-08-29
Publication date: 2021-05-25
Anticipated expiration: 2030-08-29

Abstract

The utility model relates to a supporting structure of foundation ditch, its stripper plate, base plate including extrusion foundation ditch lateral wall earth and promote the pushing mechanism of stripper plate the stripper plate slides and connects in the base plate top, the base plate top is connected with two branches that are vertical setting, pushing mechanism is including the screw rod that is the level setting, two bracing pieces that promote the stripper plate and two pieces that promote the piece that remove along the screw rod, the screw rod passes two and promotes piece and two branches, the screw rod is opposite with the screw thread at transfer line threaded connection and screw rod both ends soon, the screw rod rotates with branch to be connected, two spinal branch vaulting pole one end is rotated respectively and is connected in adjacent promotion piece, the bracing piece other end is connected with the stripper plate. This application has the screw rod of rotating and makes two spinal branch vaulting poles promote and promote the piece, makes to promote the piece and remove the extrusion soil body towards the foundation ditch lateral wall to increase the effect of soil body stability.

Description

Foundation pit supporting structure

Technical Field

The application relates to the field of foundation pit support, especially, relate to a foundation pit support structure.

Background

The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. At present, the foundation pit is widely applied to various civil constructions, and in the process of arranging the foundation pit, soil around the foundation pit is easy to collapse due to insufficient stability. At this moment, the influence of excavation on the soil body is usually reduced by using a foundation pit support, the foundation pit support is a retaining, reinforcing and protecting measure adopted for the side wall of the foundation pit and the surrounding environment in order to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, and the foundation pit support is a special construction structure and has the characteristics of complexity, variability and temporality.

Aiming at the related technologies, the inventor thinks that the defects of insufficient stability of the soil body around the foundation pit and easy collapse towards the inside of the foundation pit exist.

SUMMERY OF THE UTILITY MODEL

In order to extrude the foundation ditch lateral wall soil body, increase foundation ditch stability, this application provides a foundation ditch supporting construction.

The application provides a pair of foundation ditch supporting construction adopts following technical scheme:

the utility model provides a supporting construction of foundation ditch includes stripper plate, base plate and the pushing mechanism who promotes the stripper plate of extrusion foundation ditch lateral wall earth the stripper plate slides and connects in the base plate top, the base plate top is connected with two branches that are vertical setting, pushing mechanism is including being the screw rod that the level set up, two bracing pieces that promote the stripper plate and two pieces that promote the piece that remove along the screw rod, the screw rod passes two and promotes piece and two branches, the screw rod is opposite with the screw thread of transfer line threaded connection and screw rod both ends soon, the screw rod rotates with branch to be connected, two bracing piece one end rotate respectively connect in adjacent promotion piece, the bracing piece other end is connected with the stripper plate.

Through adopting above-mentioned technical scheme, rotate the screw rod and make two spinal branch vaulting poles promote and promote the piece, make and promote the piece and remove the extrusion soil body towards the foundation ditch lateral wall to increase soil body stability.

Optionally, a labor-saving rod convenient for rotating the screw rod is fixed at one end of the screw rod, a handle is fixed at one end, away from the screw rod, of the labor-saving rod, and the axis of the handle is parallel to the rotation axis of the screw rod.

Through adopting above-mentioned technical scheme, rotate the handle, reduce the required power of rotating the screw rod through lever principle under laborsaving pole effect, the staff of being convenient for uses.

Optionally, a fixing block for limiting rotation of the supporting rod is fixed on the side wall of the extrusion plate close to the pushing mechanism, and the fixing block is rotatably connected to one end of the supporting rod close to the extrusion plate.

Through adopting above-mentioned technical scheme, the screw rod rotates and makes the fixed block inject the bracing piece and rotate along with the screw rod to make the bracing piece promote the stripper plate and remove towards the foundation ditch lateral wall, the relative position of bracing piece and stripper plate is difficult for changing this moment, makes the promotion process of stripper plate remain stable.

Optionally, a guide groove is formed in the upper end of the substrate, the length direction of the guide groove is parallel to the length direction of the substrate, a sliding block is fixed at the lower end of the extrusion plate, and the sliding block is inserted into the guide groove and slides along the guide groove.

Through adopting above-mentioned technical scheme, the stripper plate slides along the guide way to inject stripper plate slip direction, make the removal of stripper plate more stable.

Optionally, a connection plate defining a position of the adjacent substrate is fixed to the upper end of the substrate, and the lower end of the connection plate abuts against the upper end of the substrate.

Through adopting above-mentioned technical scheme, the fastening connecting plate makes the position of adjacent base plate inject to increase excavation supporting's stability.

Optionally, the base plate is connected with the spacing of injecing the base plate displacement, spacing passes the base plate and inserts the foundation ditch bottom, the base plate upper end is connected with the drive mechanism of the spacing vertical movement of drive, drive mechanism including the horizontal rack that is the level setting, with horizontal rack engaged driving gear, with the coaxial pivoted gangbar of driving gear, with the coaxial pivoted driven gear of gangbar and with driven gear engaged perpendicular rack, it all rotates and is connected with the transfer line to promote the piece, and adjacent transfer line is kept away from and is promoted piece one end and all rotates and connect in the horizontal rack, perpendicular rack is fixed in the spacing lateral wall.

Through adopting above-mentioned technical scheme, the screw rod rotates the drive transfer line and passes through slewing mechanism and drive the butt piece and insert the foundation ditch bottom to inject the base plate displacement, improve foundation ditch support stability.

Optionally, the lower end of the limiting strip is fixed with a thorn block which is convenient to insert into the bottom of the foundation pit.

Through adopting above-mentioned technical scheme, reduce the area of contact of spacing and foundation ditch bottom, make spacing change and insert the foundation ditch bottom.

Optionally, a protective shell for protecting the transmission mechanism is fixed at the upper end of the substrate, the transmission mechanism is arranged in an inner cavity of the protective shell, one end, away from the extrusion plate, of the transverse rack penetrates through the protective shell and is arranged in the inner cavity of the protective shell, the linkage rod is connected to the protective shell in a rotating mode, and the lower end of the vertical rack penetrates through the bottom wall of the protective shell.

Through adopting above-mentioned technical scheme, drive mechanism arranges in the protective housing, reduces drive mechanism and external debris contact, and drive mechanism improves life.

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

1. the screw rod is rotated to enable the supporting rod to push the extrusion plate, and the extrusion plate extrudes the soil body on the side wall of the foundation pit, so that the stability of the soil body is improved;

2. the screw rod is rotated to enable the transmission rod to pass through the transmission mechanism, so that the limiting strip is inserted into the bottom of the foundation pit, and therefore the displacement of the substrate is limited, and the stability of the foundation pit supporting structure is improved.

Drawings

Fig. 1 is an overall view illustrating a supporting structure of a foundation pit according to an embodiment of the present application;

fig. 2 is a schematic diagram for showing a transmission mechanism and a limit strip according to an embodiment of the present application.

Description of reference numerals: 1. a substrate; 11. a strut; 12. a guide groove; 13. a sliding groove; 2. A pressing plate; 21. a sliding block; 22. a fixed block; 3. A pushing mechanism; 31. a screw; 32. a transmission rod; 33. a support bar; 34. A labor-saving rod; 35. a handle; 36. a pushing block; 4. a transmission mechanism; 41. a horizontal rack; 42. a limiting strip; 421. pricking blocks; 43. a driving gear; 44. a driven gear; 45. a linkage rod; 46. a vertical rack; 47. a drive block; 5. a protective shell; 51. a bearing block; 52. a transverse groove; 6. a connecting plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses retaining structure of foundation ditch through extrusion foundation ditch lateral wall soil body, thereby increases the influence that the soil body brought when reducing the excavation foundation ditch.

As shown in fig. 1, the foundation pit soil pushing device comprises a base plate 1, a squeezing plate 2 for squeezing the soil on the side wall of the foundation pit, and a pushing mechanism 3 for driving the squeezing plate 2. Pushing mechanism 3 connects in base plate 1 upper end, and 2 sliding connection in base plate 1 upper end of stripper plate, and the guide way 12 of guide stripper plate 2 moving direction is seted up to base plate 1 upper end, and guide way 12 length direction is on a parallel with base plate 1 length direction, and adjacent and parallel its length direction's both sides wall of guide way 12 rather than the opening has seted up sliding tray 13 respectively, sliding tray 13 lower extreme lateral wall is in the coplanar with guide way 12 keeps away from its open-ended lateral wall. The upper ends of the base plates 1 are fixed with connecting plates 6 for limiting the positions of the adjacent base plates 1 through bolts, and the lower ends of the connecting plates 6 are abutted against the upper ends of the adjacent base plates 1. A sliding block 21 is fixed at the lower end of the extrusion plate 2, the sliding block 21 is inserted into the guide groove 12, and the lower end of the sliding block 21 is abutted against the side wall of the lower end of the sliding groove 13. The extrusion plate 2 is enabled to move towards the direction of the inner wall of the foundation pit, the side wall of the extrusion plate 2, which is close to the inner wall of the foundation pit, abuts against the inner wall of the foundation pit, and the soil body is extruded to increase the stability of the foundation pit.

As shown in fig. 1, two support rods 11 defining the height of the pushing mechanism 3 are welded and fixed to the upper end of the base plate 1, and the pushing mechanism 3 is disposed between the two support rods 11. The pushing mechanism 3 comprises two pushing blocks 36 horizontally arranged, two support rods 33 pushing the extrusion plate 2 and a screw 31 changing the distance between the two pushing blocks 36. The screw 31 passes through the two support rods 11 and the two pushing blocks 6, the screw 31 is in threaded connection with the pushing blocks 6, the thread directions of the two ends of the screw 31 are opposite, and the screw 31 is in rotational connection with the support rods 11. The side wall of the extrusion plate 2 close to the pushing mechanism 3 is fixed with a fixed block 22 which limits the rotation of the supporting rod 33 through bolts, one end of each supporting rod 33 is rotatably connected with the adjacent pushing block 36, and the end of each supporting rod 33 far away from the pushing block 36 is rotatably connected with the fixed block 22. One end of the screw rod 31 is welded and fixed with a labor-saving rod 34 convenient for the screw rod 31 to rotate, the length direction of the labor-saving rod 34 is perpendicular to the screw rod 31, and one end of the labor-saving rod 34 far away from the screw rod 31 is welded and fixed with a handle 35 convenient for hand-holding driving. The adjacent pushing blocks 36 of the rotating handle 35 slide along the screw rods 3, the supporting rods 33 push the extrusion plates 2 to move towards the inner wall of the foundation pit when the distance between the adjacent pushing blocks 36 is shortened, and the supporting rods 33 pull the extrusion plates 2 to move towards the direction far away from the inner wall of the foundation pit when the distance between the adjacent pushing rods 36 is increased.

As shown in fig. 2, the substrate 1 is connected with a limiting strip 42 for limiting the displacement of the substrate 1, and the limiting strip 42 penetrates through the substrate 1 and is inserted into the bottom of the foundation pit. Base plate 1 is connected with the vertical drive mechanism 4 that slides of spacing strip 42 of drive, and base plate 1 upper end has protective housing 5 through the bolt fastening, and pushing mechanism 3 is kept away from stripper plate 2 one side in being arranged in to protective housing 5, and protective housing 5 is close to the lateral wall of stripper plate 2 and runs through there is transverse groove 52, and transverse groove 52 is on a parallel with sliding tray 13 length direction. The transmission mechanism 4 is arranged in the inner cavity of the protective shell 5, and the limiting strip 42 is inserted into the bottom of the foundation pit so as to limit the position of the substrate 1.

As shown in fig. 2, the transmission mechanism 4 includes a horizontal rack 41, a driving gear 43 engaged with the horizontal rack 41, a linkage rod 45 coaxially rotating with the driving gear 43, a driven gear 44 coaxially rotating with the linkage rod 45, and a vertical rack 46 engaged with the driven gear 44. The linkage rod 45 is rotatably connected to the side wall of the inner cavity of the protective shell 5, the vertical rack 46 is vertically arranged and connected to the side wall of the inner cavity of the protective shell 5 in a sliding mode, the upper end of the limiting strip 42 penetrates through the substrate 1 to be arranged in the inner cavity of the protective shell 5, and the side wall of the limiting strip 42 is fixedly welded to the side wall, far away from the handle 35, of the vertical rack 46. The lower end of the limit strip 42 is fixedly welded with a thorn block 421 which is convenient for the limit strip 42 to be inserted into the bottom of the foundation pit. One end, far away from the transmission rod 32, of the transverse rack 41 penetrates through the protective shell 5 and is inserted into the transverse groove 52 to slide along the length direction of the transverse groove 52, one end, far away from the protective shell 5, of the transverse rack 41 is fixedly welded with a driving block 7, the two pushing blocks 36 are respectively and rotatably connected with the transmission rod 32 horizontally arranged, and one end, far away from the pushing blocks 36, of the transmission rod 32 is simultaneously and rotatably connected with the driving block 7. The screw 31 is rotated to reduce the included angle between adjacent transmission rods 32, so as to push the transverse rack 41, the transverse rack 41 drives the driven gear 44 through the driving gear 43 to drive the vertical rack 46 to move downwards, and the vertical rack 46 pushes the limiting strip 42 to move downwards to be inserted into the bottom wall of the foundation pit, so as to limit the position of the substrate 1.

The implementation principle of the foundation pit supporting structure in the embodiment of the application is as follows: the connecting plates 6 on the base plates 1 are fastened so that the positions of the adjacent base plates 1 are limited. Place suitable position with base plate 1, the lateral wall butt that base plate 1 was kept away from to stripper plate 2 rotates handle 35 in base plate 1, thereby fixed block 22 promotes stripper plate 2 and removes extrusion foundation ditch lateral wall earth towards the foundation ditch lateral wall. The transverse rack 41 moves towards one end far away from the extrusion plate 2, the driving gear 43 drives the driven gear 44, and the driven gear 44 pushes the limiting strip 42 to move downwards and insert into the bottom of the foundation pit so as to limit the displacement of the substrate 1.

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 foundation ditch supporting construction which characterized in that: comprises an extrusion plate (2) for extruding soil on the side wall of the foundation pit, a base plate (1) and a pushing mechanism (3) for pushing the extrusion plate (2), wherein the extrusion plate (2) is connected above the base plate (1) in a sliding way, two supporting rods (11) which are vertically arranged are connected above the base plate (1), the pushing mechanism (3) comprises a screw rod (31) which is horizontally arranged, two supporting rods (33) which push the extrusion plate (2) and two pushing blocks (36) which move along the screw rod (31), the screw rod (31) passes through the two pushing blocks (36) and the two supporting rods (11), the screw rod (31) is in threaded connection with the transmission rod (32), the thread directions of the two ends of the screw rod (31) are opposite, screw rod (31) are rotated with branch (11) and are connected, two bracing pieces (33) one end is rotated respectively and is connected in adjacent promotion piece (36), the bracing piece (33) other end is connected with stripper plate (2).

2. A foundation pit supporting construction according to claim 1, wherein: the handle is characterized in that a labor-saving rod (34) convenient for rotating the screw rod (31) is fixed at one end of the screw rod (31), a handle (35) is fixed at one end, away from the screw rod (31), of the labor-saving rod (34), and the axis of the handle (35) is parallel to the rotating axis of the screw rod (31).

3. A foundation pit supporting construction according to claim 1, wherein: the side wall of the extrusion plate (2) close to the pushing mechanism (3) is fixedly provided with a fixed block (22) for limiting the rotation of the supporting rod (33), and the fixed block (22) is rotatably connected to one end, close to the extrusion plate (2), of the supporting rod (33).

4. A foundation pit supporting construction according to claim 1, wherein: guide way (12) have been seted up to base plate (1) upper end, guide way (12) length direction is on a parallel with base plate (1) length direction, stripper plate (2) lower extreme is fixed with sliding block (21), sliding block (21) insert in guide way (12) and slide along guide way (12).

5. A foundation pit supporting construction according to claim 1, wherein: the upper end of each base plate (1) is fixedly provided with a connecting plate (6) for limiting the position of the adjacent base plate (1), and the lower end of each connecting plate (6) is abutted to the upper end of each base plate (1).

6. A foundation pit supporting construction according to claim 1, wherein: base plate (1) is connected with spacing (42) of injecing base plate (1) displacement, spacing (42) pass base plate (1) and insert the foundation ditch bottom, base plate (1) upper end is connected with drive mechanism (4) of drive spacing (42) vertical movement, drive mechanism (4) including be horizontal rack (41) that sets up, with driving gear (43) of horizontal rack (41) meshing, with driving gear (43) coaxial pivoted gangbar (45), with gangbar (45) coaxial pivoted driven gear (44) and with driven gear (44) meshed perpendicular rack (46), it is connected with transfer line (32) all to promote piece (36) to rotate, and adjacent transfer line (32) are kept away from and are promoted piece (36) one end and all rotate and connect in horizontal rack (41), perpendicular rack (46) are fixed in spacing (42) lateral wall.

7. A foundation pit supporting construction according to claim 6, wherein: and a thorn block (421) which is convenient to insert into the bottom of the foundation pit is fixed at the lower end of the limiting strip (42).

8. A foundation pit supporting construction according to claim 7, wherein: protective housing (5) of protection drive mechanism (4) are fixed with to base plate (1) upper end, protective housing (5) inner chamber is arranged in drive mechanism (4), and stripper plate (2) one end is kept away from in horizontal rack (41) and is passed protective housing (5) and arrange protective housing (5) inner chamber in, gangbar (45) rotate and connect in protective housing (5), erect rack (46) lower extreme and pass protective housing (5) diapire.