CN221837596U - A deep foundation pit support device - Google Patents

Abstract

The utility model relates to the technical field of supporting devices, and provides a deep foundation pit supporting device which is used for forming a follow-up support along with the adjustment of foundation pit excavation in the process of foundation pit excavation, has better practicability, simpler adjustment operation and stronger operability, comprises a supporting plate and an annular frame, wherein the supporting plate comprises four first upper supporting plates, four second upper supporting plates, four first lower supporting plates, four first side supporting plates and four second side supporting plates, one ends of the four first upper supporting plates are respectively in sliding fit with the four first lower supporting plates, the other end of four first upper support plates respectively with four first limit extension boards sliding fit, the one end of four second upper support plates respectively with four first lower extension boards sliding fit, the other end of four second upper support plates respectively with four second limit extension boards sliding fit, fixedly connected with four fixed bolster on the annular frame, four fixed bolster are connected with four first upper support plates respectively, four fixed bolster are connected with four second upper support plates respectively.

Description

A deep foundation pit support device

Technical Field

The utility model relates to the technical field of supporting devices, in particular to a deep foundation pit supporting device.

Background Art

As is known to all, a deep foundation pit support device is a device used to provide auxiliary support to the inner wall of a foundation pit during deep foundation pit excavation construction and other construction processes after the deep foundation pit excavation is completed.

After searching, a Chinese patent with publication number CN211773726U published on October 27, 2020 discloses a deep foundation pit support device, which is roughly described as including multiple intermediate connecting support columns, corner connecting support columns, and multiple support plates. The side walls of the intermediate connecting support columns are symmetrically provided with a pair of snap-in grooves, and the support plates are inserted into the snap-in grooves of adjacent intermediate connecting support columns. The corner connecting support columns are located at the corners of the deep foundation pit. The side walls of the corner connecting support columns are provided with two snap-in grooves along their length direction. The two snap-in grooves are arranged at an angle. The support plates and the intermediate connecting support columns and the corner connecting support columns are provided with a pair of snap-in grooves. The middle connecting support column and the corner connecting support column are connected by the connecting grooves, the middle connecting support column and the corner connecting support column are vertically fixedly connected to the bottom wall of the deep foundation pit, the support plate abuts against the side wall of the deep foundation pit, and the support plate is connected with an auxiliary supporting mechanism. When in use, the construction workers will first insert the middle connecting support column and the corner connecting support column on the bottom wall of the deep foundation pit along the side wall of the deep foundation pit, and make the adjacent connecting grooves of the middle connecting support column and the corner connecting support column be located on the same straight line. Then the staff will insert the support plate into the connecting groove, and make the support plate abut against the side wall of the deep foundation pit. Then the staff will pass the anchor rod through the support plate and insert it into the side wall of the deep foundation pit.

Although the above-mentioned existing technical solutions can realize auxiliary support of the foundation pit, in the actual formation process of the deep foundation pit, in order to ensure the construction safety, it is usually necessary to support the construction while excavating. However, due to the setting of the bottom plate, the aforementioned support structure can easily cause the bottom of the foundation pit to cover too large an area, thereby affecting the further construction work of the foundation pit and having poor practicality.

Utility Model Content

1. Technical issues to be solved

In view of the deficiencies in the prior art, the utility model provides a deep foundation pit support device, which is used in the process of foundation pit excavation to form a follow-up support as the foundation pit excavation proceeds. It has good practicality, simple adjustment operations and strong operability.

(II) Technical solution

To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a deep foundation pit supporting device includes a supporting plate and an annular frame, wherein the supporting plate includes four first upper supporting plates, four second upper supporting plates, four first lower supporting plates, four first side supporting plates and four second side supporting plates, one end of the four first upper supporting plates are respectively slidably matched with the four first lower supporting plates, the other end of the four first upper supporting plates are respectively slidably matched with the four first side supporting plates, one end of the four second upper supporting plates are respectively slidably matched with the four first lower supporting plates, and the other end of the four second upper supporting plates are respectively slidably matched with the four second side supporting plates, the annular frame is fixedly connected with four fixed support frames, the four fixed support frames are respectively connected with the four first upper supporting plates, the four fixed support frames are respectively connected with the four second upper supporting plates, the annular frame is hinged with four telescopic rods, the four telescopic rods are all hinged with adjusting support plates, the four adjusting support plates are respectively connected with the four first lower supporting plates, the four adjusting support plates are respectively connected with the four first side supporting plates, and the four adjusting support plates are respectively connected with the four second side supporting plates.

Preferably, the four fixed support frames each include a transverse support rod and a transverse support plate, the four transverse support plates are each fixedly connected with an alignment sleeve, the four transverse support plates are respectively inserted into the four alignment sleeves, the four transverse support plates are each provided with a plurality of first through holes, the plurality of first through holes are each provided with bolts, the four first upper support plates and the four second upper support plates are each provided with a plurality of thread grooves, and the plurality of bolts are respectively matched with the plurality of thread grooves.

Furthermore, a plurality of threaded vertical holes are formed at the top of the annular frame, and a connector is provided at one end of each of the four horizontal support rods close to the annular frame. A plurality of optical vertical holes are formed on the four connectors, and screw rods are provided in each of the plurality of optical vertical holes. The plurality of screw rods are respectively threadedly connected in the plurality of threaded vertical holes.

Preferably, four hinged seats are slidably connected to the side surface of the annular frame, and the four hinged seats are hinged to the four telescopic rods respectively.

Furthermore, the four hinged seats are each provided with an arc-shaped dovetail strip, the annular frame is provided with an annular dovetail groove, and the four arc-shaped dovetail strips are each connected to the annular dovetail groove.

Preferably, a hexagonal reinforcement frame is provided inside the annular frame.

Furthermore, the first upper supporting plate and the second upper supporting plate are both provided with sliding grooves, and the first lower supporting plate, the first side supporting plate and the second side supporting plate are all fixedly connected with sliding bars matching the sliding grooves.

Preferably, the first side support plate and the second side support plate are both provided with mutually matching beveled edge surfaces.

(III) Beneficial effects

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

1. In the utility model, a support structure of a deep foundation pit is formed by the cooperation of the first upper support plate, the second upper support plate, the first lower support plate, the first side support plate and the second side support plate. At the same time, the first lower support plate, the first side support plate and the second side support plate can form a downward sliding adjustment relative to the first upper support plate and the second upper support plate, thereby facilitating the use of follow-up support during the foundation pit excavation process, and having good practicality.

2. In the utility model, the synchronous support of the four first upper support plates and the four second upper support plates is achieved through the cooperation of the annular frame and the fixed support frame, and the synchronous support of the four first lower support plates, the four first side support plates and the four second side support plates is achieved through the cooperation of the annular frame, the telescopic rod and the adjustable support plate. At the same time, the first lower support plate, the first side support plate and the second side support plate can be operated and supported after falling and sliding adjustment relative to the first upper support plate and the second upper support plate. The adjustment operation is relatively simple and the operability is relatively strong.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall three-dimensional structure of the utility model;

FIG2 is a partial enlarged structural schematic diagram of the A portion in FIG1 of the present utility model;

FIG3 is a schematic diagram of a three-dimensional structure of the ring frame and the hinged seat of the utility model;

FIG4 is a schematic diagram of the three-dimensional structure of the relative distribution of the first upper supporting plate and the second upper supporting plate of the present invention;

FIG5 is a schematic diagram of an exploded three-dimensional structure of the cooperation of the horizontal support rod, the horizontal support plate and the alignment sleeve of the utility model;

FIG6 is a schematic diagram of a three-dimensional structure of the first side support plate and the sliding bar in cooperation with each other according to the present invention;

FIG. 7 is a schematic diagram of the overall three-dimensional structure of the utility model when viewed from bottom.

In the figure: 1, annular frame; 2, first upper support plate; 3, second upper support plate; 4, first lower support plate; 5, first side support plate; 6, second side support plate; 7, telescopic rod; 8, adjustable support plate; 9, horizontal support rod; 10, horizontal support plate; 11, alignment sleeve; 12, bolt; 13, threaded groove; 14, threaded vertical hole; 15, connector; 16, light vertical hole; 17, screw rod; 18, hinge seat; 19, arc dovetail strip; 20, annular dovetail groove; 21, hexagonal reinforcing frame; 22, sliding groove; 23, sliding strip; 24, bevel surface.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Example

Please refer to Figures 1 to 7, a deep foundation pit supporting device includes a supporting plate and an annular frame 1, the supporting plate includes four first upper supporting plates 2, four second upper supporting plates 3, four first lower supporting plates 4, four first side supporting plates 5 and four second side supporting plates 6, one end of the four first upper supporting plates 2 is slidably matched with the four first lower supporting plates 4, the other end of the four first upper supporting plates 2 is slidably matched with the four first side supporting plates 5, one end of the four second upper supporting plates 3 is slidably matched with the four first lower supporting plates 4, and the other end of the four second upper supporting plates 3 is slidably matched with the four second side supporting plates 6. Through the cooperation of the first upper supporting plate 2, the second upper supporting plate 3, the first lower supporting plate 4, the first side supporting plate 5 and the second side supporting plate 6, a supporting structure of the deep foundation pit is formed. At the same time, the first lower supporting plate 4, the first side supporting plate 5 and the second side supporting plate 6 can form a falling sliding adjustment relative to the first upper supporting plate 2 and the second upper supporting plate 3, so as to facilitate the use of follow-up support during the foundation pit excavation process as the foundation pit excavation proceeds, and the practicality is good.

It should be further explained that four fixed support frames are fixedly connected to the annular frame 1, and the four fixed support frames are respectively connected to the four first upper support plates 2, and the four fixed support frames are respectively connected to the four second upper support plates 3. The four fixed support frames include a transverse support rod 9 and a transverse support plate 10. The four transverse support plates 10 are fixedly connected to the alignment sleeves 11, and the four transverse support plates 10 are respectively inserted into the four alignment sleeves 11. A plurality of first through holes are provided on the four transverse support plates 10, and bolts 12 are provided in the plurality of first through holes. A plurality of threaded grooves 1 are provided on the four first upper support plates 2 and the four second upper support plates 3. 3, multiple bolts 12 are matched with multiple thread grooves 13 respectively, and the synchronous support of the four first upper support plates 2 and the four second upper support plates 3 is realized through the cooperation of the annular frame 1 and the fixed support frame. A plurality of threaded vertical holes 14 are opened at the top of the annular frame 1, and one end of the four horizontal support rods 9 close to the annular frame 1 is provided with a connector 15, and a plurality of optical vertical holes 16 are opened on the four connectors 15. The plurality of optical vertical holes 16 are provided with screws 17, and the plurality of screws 17 are respectively threadedly connected in the plurality of threaded vertical holes 14, and a detachable connection structure is formed between the horizontal support and the annular frame 1, which is convenient for disassembly and installation.

It should be further explained that the annular frame 1 is hinged with four telescopic rods 7, and four hinged seats 18 are slidably connected on the side of the annular frame 1, and the four hinged seats 18 are respectively hinged with the four telescopic rods 7, and the four hinged seats 18 are respectively provided with arc dovetail strips 19, and the annular frame 1 is provided with an annular dovetail groove 20, and the four arc dovetail strips 19 are all connected in the annular dovetail groove 20, and the four telescopic rods 7 are hinged with adjustment support plates 8, and the four adjustment support plates 8 are respectively connected to the four first lower support plates 4, the four adjustment support plates 8 are respectively connected to the four first side support plates 5, and the four adjustment support plates 8 are respectively connected to the four second side support plates 6. Through the cooperation of the annular frame 1, the telescopic rods 7 and the adjustment support plates 8, the four first lower support plates 4 and the four second side support plates 6 are realized. The synchronous support of one side support plate 5 and four second side support plates 6 can be accompanied by the operation and adjusted support when the first lower support plate 4, the first side support plate 5 and the second side support plate 6 form a falling sliding adjustment relative to the first upper support plate 2 and the second upper support plate 3. The adjustment operation is relatively simple and the operability is relatively strong. An inner hexagonal reinforcement frame 21 is arranged in the annular frame 1 to improve the structural strength of the annular frame 1. The first upper support plate 2 and the second upper support plate 3 are both provided with a sliding groove 22. The first lower support plate 4, the first side support plate 5 and the second side support plate 6 are both fixedly connected with a sliding bar 23 matching the sliding groove 22. The first side support plate 5 and the second side support plate 6 are both provided with mutually matching bevel surfaces 24 to facilitate the alignment contact between the first side support plate 5 and the second side support plate 6.

In summary, the working process of the deep foundation pit supporting device is as follows: when in use, the foundation pit is first marked and the preliminary construction of the foundation pit is carried out. After the excavation depth of the foundation pit allows the first upper support plate 2 and the second upper support plate 3 to be formed into a bracket for installation, the four first upper support plates 2 and the four second upper support plates 3 are relatively tightened in the foundation pit. For the arrangement of the first upper support plate 2 and the second upper support plate 3 located on the same side wall of the foundation pit, it is necessary to make the relative displacement of the two allow the first lower support plate 4, the first side support plate 5 and the second side support plate 6 located on the side wall to be slidably placed and installed. After the four first upper support plates 2 and the four second upper support plates 3 are arranged, the synchronous support of the four first upper support plates 2 and the synchronous support of the four second upper support plates 3 are formed by the cooperation of the annular frame 1 and the four fixed support frames. At the same time, the first lower support plate 4, the first side support plate 5 and the second side support plate 6 are respectively placed in the corresponding first upper support plates The associated area of the plate 2 and the second upper support plate 3 is used to facilitate the adjustment of the relative position between the first upper support plate 2 and the second upper support plate 3, and then the stable support of the first upper support plate 2 and the second upper support plate 3 is completed. After the support is completed, the four first lower support plates 4, the four first side support plates 5 and the four second side support plates 6 are synchronously connected by adjusting the support plate 8. After the connection is completed, the length of the telescopic rod 7 is adjusted to achieve relative support between the first lower support plate 4, the first side support plate 5 and the second side support plate 6 and the annular frame 1, and then the further excavation construction of the foundation pit is completed, and the length of the telescopic rod 7 is adjusted in stages with the continuous increase in the depth of the foundation pit. Due to the increase in the length of the telescopic rod 7, the first lower support plate 4, the first side support plate 5 and the second side support plate 6 connected to the telescopic rod 7 will be lowered relative to the corresponding first upper support plate 2 and the first lower support plate 4, thereby achieving support for the deep foundation pit, which is more practical.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. The deep foundation pit supporting device comprises a supporting plate and is characterized by further comprising an annular frame (1), wherein the supporting plate comprises four first upper supporting plates (2), four second upper supporting plates (3), four first lower supporting plates (4), four first side supporting plates (5) and four second side supporting plates (6), one end of each first upper supporting plate (2) is respectively in sliding fit with each four first lower supporting plates (4), the other end of each four first upper supporting plates (2) is respectively in sliding fit with each four first side supporting plates (5), one end of each four second upper supporting plates (3) is respectively in sliding fit with each four first lower supporting plates (4), the other end of each four second upper supporting plates (3) is respectively in sliding fit with each four second side supporting plates (6), four fixed supporting frames are fixedly connected to each annular frame (1), are respectively connected with each four first upper supporting plates (2), each four first upper supporting plates (3) is respectively in sliding fit with each four first lower supporting plates (8), each four second upper supporting plates (3) is respectively in sliding fit with each four second side supporting plates (6), each four lower supporting plates (8) is respectively connected with four telescopic supporting plates (7), the four adjusting support plates (8) are respectively connected with the four second side support plates (6).

2. The deep foundation pit supporting device according to claim 1, wherein four fixed supporting frames comprise transverse supporting rods (9) and transverse supporting plates (10), four transverse supporting plates (10) are fixedly connected with alignment sleeves (11), the four transverse supporting plates (10) are respectively inserted into the four alignment sleeves (11), a plurality of first through holes are formed in the four transverse supporting plates (10), bolts (12) are arranged in the plurality of first through holes, a plurality of thread grooves (13) are formed in the four first upper supporting plates (2) and the four second upper supporting plates (3), and the plurality of bolts (12) are respectively matched with the plurality of thread grooves (13).

3. The deep foundation pit supporting device according to claim 2, wherein a plurality of threaded vertical holes (14) are formed in the top end of the annular frame (1), connectors (15) are arranged at one ends, close to the annular frame (1), of the four transverse struts (9), a plurality of light vertical holes (16) are formed in the connectors (15), a plurality of screw rods (17) are arranged in the light vertical holes (16), and the screw rods (17) are connected in the threaded vertical holes (14) in a threaded mode respectively.

4. A deep foundation pit supporting device according to claim 3, characterized in that the side of the ring frame (1) is slidingly connected with four hinging seats (18), the four hinging seats (18) being hinged with the four telescopic rods (7) respectively.

5. The deep foundation pit supporting device according to claim 4, wherein the four hinging seats (18) are provided with arc-shaped dovetail strips (19), the annular frame (1) is provided with annular dovetail grooves (20), and the four arc-shaped dovetail strips (19) are connected in the annular dovetail grooves (20).

6. Deep foundation pit supporting device according to claim 5, characterized in that the ring frame (1) is internally provided with a hexagon socket reinforcement (21).

7. The deep foundation pit supporting device according to claim 6, wherein the first upper supporting plate (2) and the second upper supporting plate (3) are provided with sliding grooves (22), and the first lower supporting plate (4), the first side supporting plate (5) and the second side supporting plate (6) are fixedly connected with sliding strips (23) matched with the sliding grooves (22).

8. Deep foundation pit supporting device according to claim 7, characterized in that the first side support plate (5) and the second side support plate (6) are each provided with mutually cooperating bevelled faces (24).