Stable supporting device for foundation pit construction

Abstract

The utility model relates to the technical field of foundation pit construction, and provides a stable supporting device for foundation pit construction, which comprises supporting templates on two sides and a supporting structure in the middle, the supporting structure comprises an adjusting mechanism and a supporting beam perpendicular to the supporting templates on the two sides, and a telescopic mechanism is arranged in the middle of the supporting beam. The two adjusting mechanisms are symmetrically located at the two ends of the supporting beam correspondingly. The adjusting mechanism comprises a first adjusting rail fixed to the supporting formwork, a first adjusting block connected with the first adjusting rail in a sliding mode is arranged on the first adjusting rail, a second adjusting rail is fixed to the first adjusting block, the second adjusting rail is perpendicular to the first adjusting rail, and the supporting beam is fixedly connected with the second adjusting rail. The foundation pit supporting device has the advantages of being capable of meeting the construction requirements of foundation pits of different sizes under different geological conditions and guaranteeing stable supporting.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of foundation pit construction, specifically, and relates to a stable supporting device for foundation pit construction. BACKGROUND

[0002] Foundation pit support is a key engineering measure to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. It not only involves the cross-application of geotechnical engineering, structural engineering, and construction technology, but also is a system engineering involving multiple complex factors. Foundation pit support includes various types and needs to meet the requirements of stability and deformation during design, including the ultimate state of bearing capacity and the normal use limit state. The design principle is to prevent the supporting structure from being damaged in the ultimate state of bearing capacity, while controlling the displacement to ensure the safe use of surrounding buildings.

[0003] Due to the temporary nature, high cost, and technical complexity of foundation pit support engineering, the supporting device used needs to have a certain displacement to adapt to different foundation pit sizes and environments while ensuring stability. SUMMARY

[0004] The utility model provides a stable supporting device for foundation pit construction, which can adapt to the construction requirements of foundation pits of different sizes under different geological conditions and ensure stability.

[0005] To this end, the technical solution adopted is as follows:

[0006] A stable supporting device for foundation pit construction includes supporting templates on both sides and a supporting structure in the middle. The supporting structure includes an adjusting mechanism and a supporting beam perpendicular to the supporting templates on both sides. The middle part of the supporting beam has an expansion mechanism. The adjusting mechanism is divided into two groups and is symmetrically arranged at the two ends of the supporting beam. The adjusting mechanism includes an adjusting track one fixed with the supporting template. The adjusting track one has an adjusting block one connected therewith through sliding. The adjusting block one is fixed with an adjusting track two. The adjusting track two is perpendicular to the adjusting track one, and the supporting beam is fixedly connected with the adjusting track two.

[0007] Further technical solutions are that the adjusting block one is fixed with a reinforcing plate, the adjusting track two is fixed on the reinforcing plate, the adjusting track two has an adjusting block two connected therewith through sliding, and the supporting beam is fixedly connected with the adjusting block two.

[0008] Further technical solutions are as follows: the support beam comprises a single beam one and a single beam two connected in a telescopic manner, the telescopic mechanism comprises a threaded rod and two connecting plates perpendicular to the support beam, two ends of the threaded rod pass through the two connecting plates respectively and are sleeved with nuts matched with the threaded rod at the passing positions, each passing position has two nuts respectively located on two sides of the connecting plate, and the two connecting plates are located on the single beam one and the single beam two respectively.

[0009] Further technical solutions are as follows: the threaded rod between the two connecting plates has a plurality of threaded rods and is uniformly distributed around the support beam.

[0010] Further technical solutions are as follows: one side of the support beam has a guide column, the guide column is arranged in parallel with the adjusting track one, the support beam is fixed with a guide sleeve, the guide column penetrates into the guide sleeve and is slidably connected with the guide sleeve.

[0011] Further technical solutions are as follows: the middle part of the support template on two sides has a plurality of support structures, and the adjusting track one has a plurality of adjusting blocks one.

[0012] The working principle and beneficial effects of the present application are as follows:

[0013] Through the support structure and the telescopic mechanism, the adaptability and flexibility of the whole support device are improved, the double support structure of the support template and the support beam is adopted, and the stability and safety of the support system are enhanced. The support device can adapt to the construction requirements of different sizes of foundation pits under different geological conditions through accurate adjustment and installation, and material waste is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0016] Figure 2 It is a schematic diagram of the structure of the adjusting mechanism of the present application;

[0017] Figure 3 It is a front view of the structure of the adjusting mechanism of the present application;

[0018] Figure 4 It is a schematic diagram of the structure of the telescopic mechanism of the present application;

[0019] Figure 5 It is a schematic diagram of the structure of the support beam of the present application.

[0020] In the diagram: 100, support formwork; 1, adjustment mechanism; 11, adjustment track one; 12, adjustment block one; 13, adjustment track two; 14, reinforcing plate; 15, adjustment block two; 2, support beam; 21, single beam one; 22, single beam two; 3, telescopic mechanism; 31, threaded rod; 32, connecting plate; 33, nut; 4, guide column; 41, guide sleeve. Detailed Implementation

[0021] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0022] like Figures 1-5 As shown, a stabilizing support device for foundation pit construction includes two side support templates 100 and a central support structure. The support structure includes an adjustment mechanism 1 and a support beam 2 perpendicular to the two side support templates 100. The support beam 2 has a telescopic mechanism 3 in the middle. The adjustment mechanism 1 consists of two sets, symmetrically arranged at both ends of the support beam 2. The adjustment mechanism 1 includes an adjustment track 11 fixed to the support template 100. The adjustment track 11 has an adjustment block 12 slidably connected to it. An adjustment track 13 is fixed on the adjustment block 12. The adjustment track 13 is perpendicular to the adjustment track 11, and the support beam 2 is fixedly connected to the adjustment track 13.

[0023] This support device is used to stabilize the foundation pit. During transportation, each part can be disassembled for transport and assembled on-site. Rigid connections are primarily used during assembly to ensure the stability of the support. Installation consists of two main parts, each including a support template 100 and an adjustment mechanism 1. Finally, a support beam 2 is fixed in place. The support beam 2 is a telescopic beam, capable of adjusting its length to accommodate different sizes of the foundation pit. The support beam 2 also has a telescopic mechanism 3 in the middle, which can be adjusted to accommodate different dimensions of the support beam 2, reinforcing the support force of the support beam 2 on the support templates 100 on both sides.

[0024] like Figure 1As shown, the device can adjust the position of the support beam 2 according to different construction requirements. When adjusting, the position of the support beam 2 at both ends in the vertical direction is determined by the movement of the adjusting block one 12 on the adjusting track one 11, and then the position of the support beam 2 at both ends in the horizontal direction is determined by the adjusting track two 13, and finally the length of the support beam 2 is adjusted to the appropriate length to ensure stable support on the support formwork 100 on both sides. In order to ensure the stability of the position of the support beam 2, when the adjustment of the support beam 2 is completed, the sliding devices such as the adjusting block one 12 are completely locked by rigid connection structures such as bolts.

[0025] The support device enables the support system to adapt to different sizes of foundation pits through the adjustable length of the support beam 2 and the adjusting mechanism 1, improving the flexibility and adjustability of the support adjustment system. The double support structure of the support formwork 100 and the support beam 2 enhances the stability and safety of the support system. Through precise adjustment and installation, the adaptability and stability of the support system under different geological conditions are ensured, and unnecessary material waste caused by fixed length of the support rod is reduced.

[0026] As shown in Figure 2 The adjusting block one 12 is fixed with a reinforcing plate 14, the adjusting track two 13 is fixed on the reinforcing plate 14, the adjusting track two 13 has an adjusting block two 15 slidingly connected thereto, and the support beam 2 is fixedly connected with the adjusting block two 15. By providing the reinforcing plate 14, the connecting stability of the adjusting track two 13 and the adjusting track one 11 is ensured due to the larger connectable area of the reinforcing plate 14. Similarly, the two ends of the support beam 2 are connected with the adjusting track two 13 through the adjusting block two 15, which further increases the connecting stability compared with the direct connection of the support beam 2 with the adjusting track two 13.

[0027] As shown in Figures 4-5 The support beam 2 includes a single beam one 21 and a single beam two 22 connected by extension, the extension mechanism 3 includes a threaded rod 31 and two connecting plates 32 perpendicular to the support beam 2, the two ends of the threaded rod 31 pass through the two connecting plates 32 respectively and are sleeved with nuts 33 matched with the threads at the passing positions, each passing position has two nuts 33 respectively located on both sides of the connecting plate 32, and the two connecting plates 32 are respectively located on the single beam one 21 and the single beam two 22.

[0028] Since the support beam 2 is a telescopic beam, in order to prevent the connection strength from being affected, a telescopic mechanism 3 is arranged on the outer side of the support beam 2, which can be telescoped synchronously with the support beam 2, and after the length is determined, it can also assist the support beam 2 to support the two side support forms 100. The mode of adjusting the two connecting plates 32 which are synchronously adjusted with the single beam one 21 and the single beam two 22 through the threaded rod 31 is adopted, wherein the maximum length of the threaded rod 31 does not exceed the maximum adjustable range of the support beam 2. Moreover, the threaded rod 31 between the connecting plates 32 has several, and is uniformly distributed around the support beam 2, and the number of the threaded rod 31 is increased or reduced according to the actual required supporting force during use.

[0029] As shown in Figure 2 One side of the support beam 2 has a guide column 4 which is arranged in parallel with the adjusting track one 11, a guide sleeve 41 is fixed on the support beam 2, and the guide column 4 penetrates into the inside of the guide sleeve 41 and is slidably connected with the guide sleeve 41. Since the movable range of the support beam 2 on the adjusting track one 11 is relatively large, in order to ensure the stability during movement, the guide structure is increased.

[0030] It is worth noting that during actual use, the number of each component is increased or reduced according to the site conditions, that is, the middle part of the two side support forms 100 can have several support structures, and the adjusting track one 11 has several adjusting blocks one 12.

[0031] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stable support device for foundation pit construction, comprising two side support templates (100) and a middle support structure, characterized in that: the support structure comprises an adjusting mechanism (1) and a support beam (2) perpendicular to the two side support templates (100), the middle part of the support beam (2) has a telescopic mechanism (3), and the adjusting mechanism (1) is symmetrically arranged at both ends of the support beam (2) in two groups; the adjusting mechanism (1) comprises an adjusting track one (11) fixed with the support template (100), the adjusting track one (11) has an adjusting block one (12) slidably connected thereto, the adjusting block one (12) is fixed with an adjusting track two (13), the adjusting track two (13) is perpendicular to the adjusting track one (11), and the support beam (2) is fixedly connected with the adjusting track two (13).

2. The stabilizing support device for foundation construction according to claim 1, wherein The adjusting block one (12) is fixed with a reinforcing plate (14), the adjusting track two (13) is fixed on the reinforcing plate (14), the adjusting track two (13) has an adjusting block two (15) slidably connected thereto, and the support beam (2) is fixedly connected with the adjusting block two (15).

3. The stabilizing support device for foundation construction according to Claim 1, wherein The support beam (2) comprises a single beam one (21) and a single beam two (22) telescopically connected, the telescopic mechanism (3) comprises a threaded rod (31) and two connecting plates (32) perpendicular to the support beam (2), the threaded rod (31) passes through the two connecting plates (32) at both ends and is sleeved with a nut (33) threadedly matched therewith at the passing-through position, the nut (33) at each passing-through position is two and is located on both sides of the connecting plate (32), and the two connecting plates (32) are located on the single beam one (21) and the single beam two (22), respectively.

4. The stabilizing support device for foundation construction according to claim 3, wherein The threaded rod (31) between the two connecting plates (32) has a plurality of threaded rods (31) uniformly distributed around the support beam (2).

5. The stabilizing support device for foundation construction according to Claim 1, wherein One side of the support beam (2) has a guide column (4), the guide column (4) is arranged in parallel with the adjusting track one (11), the support beam (2) is fixed with a guide sleeve (41), the guide column (4) penetrates into the guide sleeve (41) and is slidably connected therewith.

6. The stabilizing support device for excavation construction according to Claim 1, wherein The two side support templates (100) have a plurality of support structures in the middle part, and the adjusting track one (11) has a plurality of adjusting blocks one (12).

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