CN219175267U - Combined support for deep foundation pit earthwork excavation - Google Patents

Abstract

The utility model relates to the technical field of foundation pit excavation supporting and discloses a deep foundation pit earthwork excavation combined supporting and protecting device, which comprises two groups of supporting plates and four groups of fixing blocks movably installed in the middle of the inner side surfaces of each group of supporting plates through bolts, wherein limiting cylinders are fixedly connected to the inner side surfaces of the two groups of fixing blocks positioned on the left side, and limiting rods matched with the limiting cylinders are fixedly connected to the inner side surfaces of the two groups of fixing blocks positioned on the right side. This deep basal pit earthwork excavation combination is strutted, through setting up gag lever post and spacing section of thick bamboo and being connected, and then the fixed block that the drive that can be located on the right side that can make is located right side and gag lever post carry out the lateral movement for the orbit of spacing section of thick bamboo, can be convenient effectual advance the interval of two sets of extension boards, and then can protect in advance the foundation ditch of equidimension, then use the actuating lever to connect connecting axle and drive shaft, only need start servo motor can make two sets of extension boards can be stable protect the foundation ditch, the practicality of combination strutted has been improved.

Description

Combined support for deep foundation pit earthwork excavation

Technical Field

The utility model relates to the technical field of foundation pit excavation supporting, in particular to a combined supporting for deep foundation pit earthwork excavation.

Background

The foundation pit is a complex project of geological conditions with excavation depth exceeding 5 meters, surrounding environment and underground pipelines, and as the foundation pit is bigger and deeper, the construction of a supporting structure of the foundation pit is more and more difficult, for example, the collapsible loess of the western security stratum is softer, and in the building construction process, supporting measures are adopted for the side wall and the surrounding environment of the deep foundation pit in order to ensure the safety and the construction convenience of the surrounding environment of the deep foundation pit.

The combined support structure of the prior art is simple, is difficult to protect deep foundation pits with different sizes, is difficult to support the pressure applied to the deep foundation pits, and further reduces the practicability of the combined support for deep foundation pit earthwork excavation.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a combined support for deep foundation pit earthwork excavation, which solves the problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a deep basal pit earthwork excavation combination is strutted, includes two sets of extension boards and through four sets of fixed blocks of bolt movable mounting in every group extension board medial surface middle part, is located the equal fixedly connected with spacing section of thick bamboo of two sets of fixed block medial surfaces on left side, is located the equal fixedly connected with spacing gag lever post of spacing section of thick bamboo looks adaptation of two sets of fixed block medial surfaces on right side, every group the equal fixedly connected with twenty sets of drive shafts of spacing section of thick bamboo lateral surface, the four slide rail of extension board left surface fixedly connected with on right side, every group slide rail surface all sliding connection has the slider, every group the coupling assembling is all installed to slider lateral surface, is located the equal fixedly connected with rectangle pole of two sets of slider medial surfaces of top and two sets of slider medial surfaces that are located the bottom, is located the extension board left surface on right side and installs drive assembly.

Preferably, the connecting assembly comprises connecting shafts fixedly arranged on the outer side surfaces of the sliding blocks, the outer surfaces of the connecting shafts are movably sleeved with driving rods, and connecting holes are formed in the top and the bottom of the inner side surfaces of the driving rods.

Preferably, the outer diameter of the connecting shaft is equal to the outer diameter of the driving shaft, and the inner diameter of the connecting hole is one zero-five times of the outer diameter of the driving shaft.

Preferably, each group of edges of the outer side surfaces of the driving shafts and each group of edges of the outer side surfaces of the connecting shafts are subjected to chamfering, and the radius of the chamfering is one millimeter.

Preferably, the drive assembly includes the support of fixed mounting at the extension board left surface that is located the right side, rotates through the bearing and connects the pivot and the two sets of transfer lines of fixed mounting at every rectangular bar left surface that are located the right side, every group rectangular groove has all been seted up to the transfer line lateral surface, the stopper with rectangular groove looks adaptation is all fixedly connected with to support front side inner wall and rear side inner wall, pivot external surface fixed cup joint drive gear, every group equal fixedly connected with of transfer line medial surface and the teeth of a cogwheel meshing of drive gear, the support left surface passes through the servo motor that the support left side inner wall and with pivot left surface key-type are connected through bolt fixedly connected with output.

Preferably, the transmission rod is made of stainless steel, and a circular through hole with a circular core line coincident with a circle center line of the output end of the servo motor is formed in the left side surface of the bracket, and the inner diameter of the circular through hole is three times the outer diameter of the output end of the servo motor.

(III) beneficial effects

Compared with the prior art, the utility model provides a combined support for deep foundation pit earthwork excavation, which has the following beneficial effects:

1. this deep basal pit earthwork excavation combination is strutted, through setting up gag lever post and spacing section of thick bamboo and being connected, and then the fixed block that the drive that can be located on the right side that can make is located right side and gag lever post carry out the lateral movement for the orbit of spacing section of thick bamboo, can be convenient effectual advance the interval of two sets of extension boards, and then can protect in advance the foundation ditch of equidimension, then use the actuating lever to connect connecting axle and drive shaft, only need start servo motor can make two sets of extension boards can be stable protect the foundation ditch, the practicality of combination strutted has been improved.

2. This deep basal pit earthwork excavation combination support drives rectangular bar, slider and connecting axle through setting up the transfer line and moves to the inboard along the orbit of slide rail, can make the connecting axle can be convenient effectually apply the effort to the drive shaft through the actuating lever, the drive shaft is fixed for spacing section of thick bamboo and the extension board that is located the left side, can make extension board and the gag lever post that is located the right side can be comparatively convenient for the orbit right side motion of spacing section of thick bamboo, and then make two sets of extension boards protect the foundation ditch that can be convenient, improved the convenience that the combination was strutted and used greatly.

3. This deep basal pit earthwork excavation combination is strutted, carry out spacingly through setting up stopper and rectangular channel adaptation to the transfer line, can make the teeth of a cogwheel of front and back both sides simultaneously respectively with drive gear meshing transmission, and then make drive gear can be stable effectually apply the effort simultaneously to the transfer line of front and back both sides, and then make the connecting axle that is located the top and the connecting axle that is located the bottom apply the effort simultaneously to the drive shaft of front and back both sides through four sets of actuating levers, and then make four sets of connecting axles can apply the effort to the extension board that is located the right side simultaneously, and then comparatively effectually increased the stability that two sets of extension boards adjusted, and then improved the stability that the combination strutted protected the foundation ditch greatly.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the structure of the present utility model;

fig. 3 and 4 are schematic views of the connection structure of the present utility model;

fig. 5 is an exploded view of the driving structure of the present utility model.

In the figure: 1. a support plate; 2. a fixed block; 3. a limiting cylinder; 4. a limit rod; 5. a drive shaft; 6. a slide rail; 7. a slide block; 8. a connecting shaft; 9. a rectangular bar; 10. a transmission rod; 11. rectangular grooves; 12. a driving rod; 13. a connection hole; 14. a bracket; 15. a servo motor; 16. a rotating shaft; 17. a transmission gear; 18. and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the combined support for deep foundation pit earthwork excavation comprises two groups of support plates 1 and four groups of fixing blocks 2 movably mounted in the middle of the inner side surface of each group of support plates 1 through bolts, wherein the inner side surfaces of the two groups of fixing blocks 2 positioned on the left side are fixedly connected with limiting cylinders 3, the inner side surfaces of the two groups of fixing blocks 2 positioned on the right side are fixedly connected with limiting rods 4 matched with the limiting cylinders 3, the outer side surfaces of each group of limiting cylinders 3 are fixedly connected with twenty groups of driving shafts 5, the left side surface of the support plate 1 positioned on the right side is fixedly connected with four groups of sliding rails 6, the outer surfaces of each group of sliding rails 6 are slidably connected with sliding blocks 7, the outer side surfaces of each group of sliding blocks 7 are respectively provided with a connecting assembly, each connecting assembly comprises a connecting shaft 8 fixedly mounted on the outer side surface of each group of sliding blocks 7, the outer surface of each group of connecting shafts 8 is movably sleeved with driving rods 12, the top and the bottom of the inner side surfaces of each group of driving rods 12 are respectively provided with a connecting hole 13, the inner side surfaces of the two groups of sliding blocks 7 positioned at the top and the inner side surfaces of the two groups of sliding blocks 7 positioned at the bottom are respectively fixedly connected with a rectangular rod 9, the left side surface of the support plate 1 positioned at the right side is provided with a driving component, the driving component comprises a support 14 fixedly arranged on the left side surface of the support plate 1 positioned at the right side, a rotating shaft 16 rotationally connected with the left side surface of the support plate 1 positioned at the right side through a bearing and two groups of driving rods 10 fixedly arranged on the left side surface of each group of rectangular rods 9, the outer side surface of each group of driving rods 10 is respectively provided with a rectangular groove 11, the inner wall of the front side and the inner wall of the rear side of the support 14 are respectively fixedly connected with a limiting block 18 matched with the rectangular groove 11, the outer surface of the rotating shaft 16 is fixedly sleeved with a driving gear 17, the inner side surface of each group of driving rods 10 is fixedly connected with gear teeth meshed with the driving gear 17, the left side of the bracket 14 is fixedly connected with a servo motor 15, the output end of which penetrates through the left inner wall of the bracket 14 and is in key connection with the left side of the rotating shaft 16.

In the utility model, in order to enable the servo motor 15 to smoothly drive the rotating shaft 16 and the transmission gear 17 to rotate, the transmission rod 10 is made of stainless steel, so that the service life of the transmission rod 10 is prolonged, a circular through hole with a circular center line coincident with the center line of the output end of the servo motor 15 is formed in the left side surface of the bracket 14, the inner diameter of the circular through hole is three times of the outer diameter of the output end of the servo motor 15, the blocking of the bracket 14 to the rotation of the output end of the servo motor 15 is effectively avoided through the arrangement of the circular through hole, and the smoothness of the rotation of the rotating shaft 16 and the transmission gear 17 driven by the output end of the servo motor 15 is further improved.

In the utility model, in order to enable the driving rod 12 to conveniently connect the connecting shaft 8 and the driving shaft 5, the outer diameter of the connecting shaft 8 is equal to the outer diameter of the driving shaft 5, and the inner diameter of the connecting hole 13 is one zero five times of the outer diameter of the driving shaft 5, so that the connecting hole 13 can be conveniently connected with the connecting shaft 8 and the driving shaft 5 respectively, and the convenience of linkage of the connecting hole 13, the driving shaft 5 and the connecting shaft 8 is greatly improved.

In the utility model, in order to enable the driving rod 12 to connect the connecting shaft 8 and the driving shaft 5 more flexibly and conveniently, the outer side edge of each group of driving shafts 5 and the outer side edge of each group of connecting shafts 8 are rounded, the radius of the rounded corner is one millimeter, the convenience of connecting the connecting hole 13 with the connecting shaft 8 and the driving shaft 5 is further improved through the rounded corner treatment, and the convenience of linkage of the driving rod 12, the connecting shaft 8 and the driving shaft 5 is further improved.

The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.

The working principle of the utility model is as follows:

s1, assembling a support, connecting a fixed block 2 and a support plate 1 through bolts, further respectively connecting a limit cylinder 3 and a limit rod 4 with the support plate 1, then respectively inserting the limit rods 4 on the front side and the rear side into the limit cylinders 3 on the front side and the rear side simultaneously, driving the fixed block 2 and the support plate 1 on the right side to move left and right relative to the limit cylinder 3 and the support plate 1 on the left side by the limit rods 4, further rapidly presetting the distance between the support plates 1 on the left side and the right side, and when the distance between the two groups of support plates 1 is about to be consistent with the width of the inner wall of a foundation pit, respectively adapting the connecting holes 13 on the outer side of the inner side of a driving rod 12 with the connecting shafts 8 on the top and the bottom, and connecting the connecting holes 13 on the inner side of the four groups of driving rods 12 with the two groups of driving shafts 5 on the front side and the rear side close to each other;

s2, fastening the support plate 1, starting the servo motor 15, driving the rotating shaft 16 and the transmission gear 17 to rotate anticlockwise at the output end of the servo motor 15, and simultaneously respectively meshing and transmitting the transmission gear 17 with gear teeth on the front side and the rear side, so that the transmission rods 10 on the front side and the rear side simultaneously respectively drive the rectangular rods 9 and the sliding blocks 7 on the bottom and the top to move inwards along the track of the sliding rail 6, when the transmission rods 10 move inwards, the limiting blocks 18 are matched with the rectangular grooves 11 to limit the positions of the transmission rods 10 and the gear teeth, so that the gear teeth can always mesh with the transmission gear 17, when the rectangular rods 9 and the sliding blocks 7 on the bottom and the top move inwards along the track of the sliding rail 6, the connecting shafts 8 on the top and the connecting shafts 8 on the bottom move inwards along the track of the sliding rail 6 along the movement of the sliding blocks 7, the four groups of connecting shafts 8 apply acting force to two groups of driving shafts 5 connected with the driving rods 12 through the four groups of driving rods 12, the driving shafts 5 are fixed relative to the limiting cylinder 3 and the support plates 1 and the fixed blocks 2 which are positioned on the left side, so that the driving rods 12 apply reaction force to the connecting shafts 8, when the connecting shafts 8 move inwards, the included angle formed between the driving rods 12 positioned at the top and the driving rods 12 positioned at the bottom is reduced, and then the connecting shafts 8 can drive the sliding blocks 7, the sliding rails 6, the support plates 1 positioned on the right side, the fixed blocks 2 positioned on the right side and the limiting rods 4 to move towards the right side relative to the limiting cylinder 3, the distance between the two groups of support plates 1 is increased, and the outer side surfaces of the two groups of support plates 1 can be in tight contact with the inner wall of a foundation pit.

In summary, this deep basal pit earthwork excavation combination support, through setting up gag lever post 4 and spacing section of thick bamboo 3 connection, and then the fixed block 2 that can make the extension board 1 that is located the right side that is located can be convenient drive and gag lever post 4 carry out the left-right movement for the orbit of spacing section of thick bamboo 3, can be convenient and effective preset to the interval of two sets of extension boards 1, and then can protect in advance the foundation ditch of equidimension, then use actuating lever 12 to connect connecting axle 8 and actuating shaft 5, only need start servo motor 15 can make two sets of extension boards 1 can be stable protect the foundation ditch, the practicality of combination support has been improved, through setting up transfer line 10 and drive rectangular bar 9, slider 7 and connecting axle 8 along the inward motion of the orbit of slide rail 6, can make connecting axle 8 can be convenient effectual apply the effort to actuating shaft 5 through actuating lever 12, the driving shaft 5 is fixed relative to the limit cylinder 3 and the support plate 1 positioned at the left side, so that the support plate 1 positioned at the right side and the limit rod 4 can move rightwards relative to the track of the limit cylinder 3 relatively conveniently, the two groups of support plates 1 can conveniently protect foundation pits, the convenience of combined support is greatly improved, the driving rods 10 are matched and limited through the limiting block 18 and the rectangular groove 11, gear teeth on the front side and the rear side can simultaneously and respectively meshed with the driving gear 17 for transmission, the driving gear 17 can stably and effectively apply acting force to the driving rods 10 on the front side and the rear side simultaneously, the connecting shafts 8 positioned at the top and the connecting shafts 8 positioned at the bottom simultaneously apply acting force to the driving shafts 5 on the front side and the rear side through the four groups of driving rods 12, the four groups of connecting shafts 8 can simultaneously apply acting force to the support plates 1 positioned at the right side, and then more effectually increased the stability that two sets of extension boards 1 adjusted, and then improved the stability that the combination support protected the foundation ditch greatly.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

While the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes may be made without departing from the spirit of the present patent within the knowledge of one of ordinary skill in the art.

Claims (6)

1. The utility model provides a deep basal pit earthwork excavation combination support, includes two sets of extension boards (1) and four sets of fixed blocks (2) at every extension board (1) medial surface middle part through bolt movable mounting, its characterized in that: two groups of fixed blocks (2) medial surface that are located the left side are all fixedly connected with spacing section of thick bamboo (3), and two groups of fixed blocks (2) medial surface that are located the right side are all fixedly connected with spacing section of thick bamboo (3) looks gag lever post (4), every group spacing section of thick bamboo (3) lateral surface are all fixedly connected with twenty groups of drive shafts (5), and extension board (1) left surface fixedly connected with four groups slide rail (6) that are located the right side, every group slide rail (6) surface are sliding connection has slider (7), every group coupling assembling is all installed to slider (7) lateral surface, and two groups of slider (7) medial surface that are located the top and two groups of slider (7) medial surface that are located the bottom are all fixedly connected with rectangle pole (9), and extension board (1) left side that are located the right side installs drive assembly.

2. The deep foundation pit earth excavation composite support of claim 1, wherein: the connecting assembly comprises connecting shafts (8) fixedly arranged on the outer side faces of each group of sliding blocks (7), driving rods (12) are movably sleeved on the outer surfaces of the connecting shafts (8), and connecting holes (13) are formed in the tops and the bottoms of the inner side faces of the driving rods (12).

3. The deep foundation pit earth excavation composite support of claim 2, wherein: the outer diameter of the connecting shaft (8) is equal to the outer diameter of the driving shaft (5), and the inner diameter of the connecting hole (13) is one zero-five times of the outer diameter of the driving shaft (5).

4. The deep foundation pit earth excavation composite support of claim 2, wherein: and each group of the edges of the outer side surfaces of the driving shafts (5) and each group of the edges of the outer side surfaces of the connecting shafts (8) are subjected to chamfering, and the radius of the chamfering is one millimeter.

5. The deep foundation pit earth excavation composite support of claim 1, wherein: the driving assembly comprises a support (14) fixedly arranged on the left side face of a support plate (1) positioned on the right side, a rotating shaft (16) rotatably connected with the left side face of the support plate (1) positioned on the right side through a bearing, and two groups of transmission rods (10) fixedly arranged on the left side face of each group of rectangular rods (9), wherein each group of transmission rods (10) is provided with a rectangular groove (11) on the outer side face, limiting blocks (18) matched with the rectangular grooves (11) are fixedly connected to the inner wall of the front side and the inner wall of the rear side of the support (14), a transmission gear (17) is fixedly sleeved on the outer surface of the rotating shaft (16), gear teeth meshed with the transmission gear (17) are fixedly connected to the inner side face of each group of the transmission rods (10), and the left side face of the support (14) is fixedly connected with a servo motor (15) of which the output end penetrates through the inner wall of the left side face of the support (14) and is in key connection with the left side face of the rotating shaft (16) through bolts.

6. The deep foundation pit earth excavation composite support of claim 5, wherein: the transmission rod (10) is made of stainless steel, a circular through hole with a circular core line coincident with the circle center line of the output end of the servo motor (15) is formed in the left side face of the support (14), and the inner diameter of the circular through hole is three times the outer diameter of the output end of the servo motor (15).

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