Novel foundation pit supporting device

Abstract

The utility model discloses a novel foundation pit supporting device, aims to provide a novel foundation pit supporting device which is convenient to transport, unfold and install, and adopts the technical scheme that the novel foundation pit supporting device comprises a base, a lifting device is arranged on the base, the lifting device comprises a hollow lower supporting box arranged on the base, sliding grooves are formed in the two sides of the lower supporting box, and the sliding grooves are communicated with the lifting device. Sliding rods matched with the sliding grooves are further arranged in the sliding grooves, an upper supporting box clamped into the lower supporting box is arranged between the sliding rods, edges are arranged at the top ends of the sliding grooves, and clamping blocks matched with the edges are arranged at the bottoms of the sliding rods.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit supporting equipment, in particular to a novel foundation pit supporting device. Background Art

[0002] Foundation pit support is a measure of support, reinforcement and protection adopted on the side walls of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit [1].

[0003] The industry standard of the People's Republic of China "Technical Code for Construction Foundation Pit Support" JGJ120-2012 defines foundation pit support as follows: temporary support, reinforcement, protection and groundwater control measures adopted for foundation pits to protect the safety of underground main structure construction and the environment surrounding the foundation pit.

[0004] At present, a Chinese patent with publication number CN114934521B discloses a foundation pit support pile, which includes a first support mechanism and a second support mechanism, a third support mechanism is fixedly installed between the first support mechanism and the second support mechanism, the first support mechanism includes a first limit-type support plate fixedly installed on one side of the wall, the second support mechanism includes a second limit-type support plate fixedly installed on the ground, the third support mechanism includes a third limit-type support plate supported between the first limit-type support plate and the supporting column, both sides of the third limit-type support plate are hinged with connecting blocks, both sides of the connecting block are fixedly installed with connecting plates, and the first limit-type support plate and the second limit-type support plate are arranged in a U shape.

[0005] This type of foundation pit support pile can change the color of the solution in the internal cavity of the reaction chamber, allowing the staff to preliminarily judge that the wall has been tilted. At the same time, it can judge that the ground has been tilted based on whether the water in the liquid storage cylinder has flowed out, which is more convenient for practical use. However, the function of the foundation pit support is often relatively simple and the installation is more troublesome. Summary of the invention

[0006] One purpose of the utility model is to provide a novel foundation pit supporting device, which has the advantages of being quick to install, easy to use, and convenient to store and transport.

[0007] The above technical objectives of the utility model are achieved through the following technical solutions:

[0008] A novel foundation pit support device comprises a base, on which a lifting device is provided, the lifting device comprises a hollow lower support box located on the base, slide grooves are provided on both sides of the lower support box, a slide rod matching the slide grooves is provided in the slide grooves, an upper support box inserted into the lower support box is provided between the slide rods, an edge is provided at the top of the slide groove, and a block matching the edge is provided at the bottom of the slide rod.

[0009] By adopting the above technical solution, the provided lifting device can effectively unfold the upper support box and the lower support box, and due to the hollow setting, cement can be filled into the lifting device to quickly form a support plate with a certain support strength.

[0010] Further configuration: a card edge is provided on the inner wall of the lower support box, a plurality of slots are provided on the card edge, a retaining edge matching the card edge is provided around the upper support box, and a protrusion is provided on the retaining edge which is interference-connected with the slots.

[0011] By adopting the above technical solution, the provided clamping edge is correspondingly connected to the retaining edge, so that when the upper support box is pulled up, the position can be fixed relative to the lower support box.

[0012] Further configuration: insertion bolts are provided on both sides of the base.

[0013] By adopting the above technical solution, the provided insertion bolt can effectively fix the entire base.

[0014] Further configuration: an insertion device is also provided on the lifting device, and the insertion device includes a plurality of slots provided on one side of the lifting device, and reinforced sheet metals are provided in the slots to be inserted into the upper support box and the lower support box, and a clamping groove for clamping the reinforced sheet metal is also provided on the inner wall of the upper support box and the lower support box.

[0015] By adopting the above technical solution, the provided insertion device can effectively increase the supporting strength of the entire supporting device, and increase the supporting strength of the entire plate by strengthening the effect of the sheet metal.

[0016] It is further provided that: a grouting injection port is also provided on one side of the upper support box.

[0017] By adopting the above technical solution, the provided grouting injection port can effectively grout the interior, and after solidification, a firm supporting plate is formed.

[0018] It is further configured that: the base is hollow, and the lower support box is connected to the base.

[0019] By adopting the above technical solution, cement slurry can be poured into the base after the base is connected to the lower support box, thereby increasing the weight of the base, lowering the center of gravity, making it more stable, and the hollow base can effectively reduce the transportation weight.

[0020] It is further configured that: a plurality of through grooves are provided on the reinforced sheet metal.

[0021] By adopting the above technical solution, the provided through groove can effectively penetrate cement, thereby ensuring that the entire upper support box and the lower support box are filled with cement.

[0022] To sum up, the utility model has the following beneficial effects: the whole device is simple to set up, and the overall weight is light, which is convenient for transportation, and the supporting capacity is strong, so it can be effectively used as a supporting device. At the same time, after pouring cement slurry into it, the supporting strength of the whole equipment can be guaranteed, and it is easy to unfold and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of a new type of foundation pit support device;

[0025] Figure 2 It is a schematic diagram of the internal structure of a new type of foundation pit support device;

[0026] Figure 3 yes Figure 2 Enlarged schematic diagram at point A in the middle.

[0027] In the figure, 1, base; 2, lifting device; 21, lower support box; 22, slide groove; 23, slide rod; 24, upper support box; 25, edge; 26, clamping block; 3, clamping edge; 4, slot hole; 5, retaining edge; 6, protrusion; 7, insertion bolt; 8, insertion device; 81, notch; 82, reinforced sheet metal; 83, clamping groove; 9, grouting injection port; 10, through groove. DETAILED DESCRIPTION

[0028] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0029] The technical solution adopted by the utility model is: a new foundation pit supporting device, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a base 1, with insertion bolts 7 provided on both sides of the base 1, and a lifting device 2 provided on the base 1. The lifting device 2 includes a hollow lower support box 21 located on the base 1. The base 1 is hollow, and the lower support box 21 is connected to the base 1. Slide grooves 22 are provided on both sides of the lower support box 21, and a slide bar 23 matching the slide groove 22 is also provided in the slide groove 22. At the same time, an upper support box 24 inserted into the lower support box 21 is provided between the slide bars 23, and an edge 25 is provided at the top of the slide groove 22, and a block 26 matching the edge 25 is provided at the bottom of the slide bar 23, so as to prevent the upper support box 24 from being separated from the lower support box 21. A card edge 3 is provided on the inner wall of the lower support box 21, and a plurality of slots 4 are provided on the card edge 3, and a retaining edge 5 matching the card edge 3 is provided around the upper support box 24, and a convex block 6 is provided on the retaining edge 5 to be interference-connected with the slot 4.

[0030] An insertion device 8 is also provided on the lifting device 2, and the insertion device 8 includes a plurality of slots 81 located on one side of the lifting device 2, and a reinforcing sheet metal 82 inserted into the upper support box 24 and the lower support box 21 is provided in the slot 81, and a plurality of through grooves 10 are provided on the reinforcing sheet metal 82. A clamping groove 83 for clamping the reinforcing sheet metal 82 is also provided on the inner wall of the upper support box 24 and the lower support box 21, and a grouting injection port 9 is also provided on one side of the upper support box 24.

[0031] Its main working principle is as follows; during use, the entire device is fixed at the place where support is required, and the upper support box 24 is stretched at the same time to fix the positions of the upper support box 24 and the lower support box 21. At this time, cement mortar can be poured into the lifting device 2 through the grouting injection port 9. When it reaches a certain height, the reinforcing sheet metal 82 can be inserted. On the one hand, it improves the support strength, and on the other hand, it can compact the cement mortar below. Finally, the entire upper support box 24 and the lower support box 21 are filled, and the lower support box 21 is connected to the base 1, so that the cement mortar will also be poured into the base 1, ensuring that the center of gravity of the entire equipment is low. At the same time, it can effectively support the tunnel, and because the reinforcing sheet metal 82 is inserted, the support strength is improved to a certain extent, the overall transportation is convenient, and the deployment and installation are relatively simple.

[0032] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the utility model.

Claims

1. A novel foundation pit support device, comprising a base (1), characterized in that: The base (1) is provided with a lifting device (2), and the lifting device (2) comprises a hollow lower support box (21) located on the base (1), and slide grooves (22) are provided on both sides of the lower support box (21), and slide rods (23) matching the slide grooves (22) are also provided in the slide grooves (22), and an upper support box (24) inserted into the lower support box (21) is provided between the slide rods (23), and an edge (25) is provided at the top of the slide groove (22), and a block (26) matching the edge (25) is provided at the bottom of the slide rod (23).

2. A new foundation pit supporting device according to claim 1, characterized in that: The lower support box (21) has a clamping edge (3) on its inner wall, and a plurality of slots (4) are provided on the clamping edge (3). The upper support box (24) has retaining edges (5) matching the clamping edge (3) on its periphery, and convex blocks (6) that are interference-connected with the slots (4) are provided on the retaining edges (5).

3. A new foundation pit supporting device according to claim 2, characterized in that: Insertion bolts (7) are provided on both sides of the base (1).

4. A new foundation pit supporting device according to claim 3, characterized in that: The lifting device (2) is also provided with an insertion device (8), the insertion device (8) comprising a plurality of notches (81) provided on one side of the lifting device (2), the notches (81) being provided with reinforcing sheet metals (82) inserted into the upper support box (24) and the lower support box (21), and the inner walls of the upper support box (24) and the lower support box (21) are also provided with a clamping groove (83) for clamping the reinforcing sheet metals (82).

5. A new foundation pit supporting device according to claim 4, characterized in that: A grouting inlet (9) is also provided on one side of the upper support box (24).

6. A new foundation pit supporting device according to claim 5, characterized in that: The base (1) is hollow, and the lower support box (21) is in communication with the base (1).

7. A new foundation pit supporting device according to claim 6, characterized in that: The reinforcing sheet metal (82) is provided with a plurality of through grooves (10).

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