Foundation pit supporting structure

Abstract

The utility model relates to the technical field of house building construction, in particular to a foundation pit supporting structure which comprises two groups of supporting plates, each group of supporting plates comprises a first supporting plate and a second supporting plate, the first supporting plates and the second supporting plates are connected in a sliding mode, four jacking devices are hinged between the two groups of supporting plates, each jacking device comprises a connecting block, and the connecting blocks are connected with the supporting plates in a sliding mode. And one side of the connecting block is rotationally connected with an inner threaded sleeve, and the interior of the inner threaded sleeve is in threaded connection with a threaded rod. The supporting device has the advantages that the length of the portion, connected into the inner threaded sleeve, of the threaded rod can be changed by rotating the inner threaded sleeve, so that the total length of the supporting device is changed, and the two sets of supporting plates are driven to adapt to foundation pits with different widths; and the total length of the two sets of supporting plates can be adjusted by sliding the second supporting plate, so that supporting work can be conveniently conducted on foundation pits with different lengths, and using is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to house building construction technical field, especially a foundation pit support structure. BACKGROUND

[0002] With the continuous development of urbanization construction, the city building density is bigger and bigger. In order to ensure the safety of nearby buildings, underground pipeline, city road, deep foundation pit support construction is generally carried out when house building construction is carried out in building dense area. Deep foundation pit is a kind of temporary structure set in the process of building construction, usually a underground space is excavated downwards on the ground of the construction site as foundation pit, and support plate is vertically arranged on the circumferential wall of foundation pit, which can be steel plate or casted slope protection, support pipe is arranged in the inside of foundation pit, and the support pipe is arranged between two support plates on the opposite side wall of foundation pit, which can support two support plates, thereby reducing the possibility of inward collapse of support plate under the compression of surrounding soil.

[0003] The support pipe in support structure is reusable, and the support pipe is composed of a plurality of connecting pipes, and the staff selects appropriate number of connecting pipes according to the size of site to assemble; due to construction error, the distance between support plates in each foundation pit is different; in order to make the end wall of support pipe abut against the side wall of support plate more tightly, and achieve better support effect, the staff usually needs to prepare connecting pipes of different lengths, and combine and try connecting pipes of different lengths, assemble into support pipe of appropriate length and then install, so that the staff is not convenient when assembling support pipe.

[0004] To this end, the utility model provides a foundation pit support structure to solve the problem. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving at least one of the technical defects.

[0006] Therefore, one purpose of the utility model is to provide a foundation pit support structure to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0007] In order to achieve the above purpose, the embodiment of the utility model provides a foundation pit support structure, which comprises two groups of support plates, each group of support plates comprises a first support plate and a second support plate, the first support plate and the second support plate are connected with each other in sliding mode, four jacking devices are hinged between the two groups of support plates, the jacking device comprises a connecting block, one internal thread sleeve is rotatably connected to one side of the connecting block, a threaded rod is screw-connected in the internal thread sleeve, the connecting block and the threaded rod are hinged with the two groups of support plates, and a locking screw is screw-connected to one side of each first support plate.

[0008] Preferably, one side of the first supporting plate and the second supporting plate is fixedly connected with two hinged grooves, and the inside of each hinged groove is fixedly connected with a hinged shaft.

[0009] Preferably, one side of the first supporting plate is provided with a through groove, the outer surface of one side of the second supporting plate is matched with the inner surface of the through groove, and the outer surface of one side of the second supporting plate is slidingly connected to the inner surface of the through groove.

[0010] The technical effect achieved by the above scheme is that the overall length of the supporting plate can be adjusted.

[0011] Preferably, the upper and lower sides of the through groove penetrate to the outside of the first supporting plate, the two sides of the second supporting plate are fixedly connected with a limiting block, and the outside of the limiting block is slidingly connected to the inside of the through groove.

[0012] Preferably, one side of the connecting block and the threaded rod is provided with a hinged hole, the inner surface of the hinged hole is matched with the outer surface of the hinged shaft, the inner surface of the hinged hole is hinged to the outer surface of the hinged shaft, and one side of the connecting block and the threaded rod is clamped in the inside of the hinged groove.

[0013] Preferably, one side of the connecting block is provided with a rotating hole, one side of the internal thread sleeve is fixedly connected with a rotating block, and the outer surface of the rotating block is rotatingly connected to the inner surface of the rotating hole.

[0014] The technical effect achieved by the above scheme is that the internal thread sleeve can rotate relative to the connecting block.

[0015] Preferably, the outer surface of the threaded rod and the inner surface of the internal thread sleeve are provided with matched threads, and the outer surface of the threaded rod is threadedly connected to the inner surface of the internal thread sleeve.

[0016] Preferably, one side of the first supporting plate is provided with a threaded hole, the locking screw is threadedly connected to the inner surface of the threaded hole and penetrates to the inside of the through groove, and one side of the locking screw is in contact with the surface of the second supporting plate.

[0017] The technical effect achieved by the above scheme is that the second supporting plate is locked by friction to avoid sliding with the first supporting plate.

[0018] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0019] The rotating inner threaded sleeve can change the length of the threaded rod connected to the inside of the inner threaded sleeve, thereby changing the total length of the jacking device to drive the two groups of supporting plates to adapt to foundation pits of different widths, by setting the first supporting plate and the second supporting plate to slide relative to each other, the total length of the two groups of supporting plates can be adjusted by sliding the second supporting plate, thereby facilitating supporting work on foundation pits of different lengths, and use is more convenient, by hingedly connecting the connecting block and the threaded rod with the first supporting plate and the second supporting plate, the two groups of supporting plates can be adapted to foundation pits with inclined surfaces on the two sides, so that the use range of the whole device is wider.

[0020] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings.

[0022] Figure 1 is a schematic diagram of the overall structure according to an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of the structure of the first supporting plate according to an embodiment of the present application;

[0024] Figure 3 is a schematic diagram of the structure of the second supporting plate according to an embodiment of the present application;

[0025] Figure 4 is a schematic diagram of the structure of the connecting block according to an embodiment of the present application;

[0026] Figure 5 is a schematic diagram of the structure of the inner threaded sleeve according to an embodiment of the present application;

[0027] Figure 6 is a schematic diagram of the structure of the threaded rod according to an embodiment of the present application.

[0028] In the drawings: 1 - supporting plate, 2 - first supporting plate, 201 - through slot, 3 - second supporting plate, 301 - limiting block, 4 - jacking device, 5 - connecting block, 501 - rotating hole, 6 - inner threaded sleeve, 601 - rotating block, 7 - threaded rod, 8 - hinged groove, 9 - hinged shaft, 10 - hinged hole, 11 - locking screw. DETAILED DESCRIPTION

[0029] As Figures 1 to 6As shown, a foundation pit support structure, it includes two groups of support plates 1, each group of support plates 1 includes a first support plate 2 and a second support plate 3, the first support plate 2 and the second support plate 3 are connected to each other, the two groups of support plates 1 are hinged with four bracing devices 4, the bracing device 4 includes a connecting block 5, one side of the connecting block 5 is rotatably connected with a female threaded sleeve 6, the female threaded sleeve 6 is internally threaded with a threaded rod 7, the connecting block 5 and the threaded rod 7 are hinged with the two groups of support plates 1, one side of each first support plate 2 is threadedly connected with a locking screw 11, one side of the locking screw 11 is fixedly connected with a knob with anti-skid pattern, which facilitates the rotation of the locking screw 11, and a screw with a shape convenient for cooperation with a wrench can also be used.

[0030] One side of the first support plate 2 and the second support plate 3 is fixedly connected with two hinged grooves 8, and one hinged shaft 9 is fixedly connected in each hinged groove 8.

[0031] One side of the first support plate 2 is provided with a through slot 201, and the outer surface of one side of the second support plate 3 is matched with the inner surface of the through slot 201. The outer surface of one side of the second support plate 3 is slidably connected to the inner surface of the through slot 201. By setting the first support plate 2 and the second support plate 3 that slide relative to each other, the total length of the two groups of support plates 1 can be adjusted by sliding the second support plate 3, thereby facilitating the support work of the foundation pit of different lengths and using more conveniently.

[0032] The upper and lower sides of the through slot 201 penetrate to the outside of the first support plate 2, and the two sides of the second support plate 3 are respectively fixedly connected with a limiting block 301, the outside of the limiting block 301 is slidably connected to the inside of the through slot 201, and the limiting block 301 prevents the second support plate 3 from being separated from the first support plate 2.

[0033] One side of the connecting block 5 and the threaded rod 7 is provided with a hinged hole 10, the inner surface of the hinged hole 10 is matched with the outer surface of the hinged shaft 9, the inner surface of the hinged hole 10 is hinged to the outer surface of the hinged shaft 9, and one side of the connecting block 5 and the threaded rod 7 is clamped in the inside of the hinged groove 8. By hinging the connecting block 5 and the threaded rod 7 with the first support plate 2 and the second support plate 3 relative to each other, the two groups of support plates 1 can be adapted to the foundation pit with the inner two sides being inclined, so that the use range of the whole device is more extensive.

[0034] One side of the connecting block 5 is provided with a rotating hole 501, one side of the female threaded sleeve 6 is fixedly connected with a rotating block 601, the outer surface of the rotating block 601 is rotatably connected to the inner surface of the rotating hole 501, so that the female threaded sleeve 6 can rotate relative to the connecting block, and a handle can be provided on the outer surface of the female threaded sleeve 6 to facilitate its rotation.

[0035] The outer surface of the threaded rod 7 is provided with a thread matched with the inner surface of the internally-threaded sleeve 6, the outer surface of the threaded rod 7 is threadedly connected to the inner surface of the internally-threaded sleeve 6, rotating the internally-threaded sleeve 6 can change the length of the threaded rod 7 connected to the inside of the internally-threaded sleeve 6, thereby changing the total length of the jacking device 4 to drive the two groups of support plates 1 to adapt to different widths of foundation pits.

[0036] A threaded hole is formed in one side of the first support plate 2, a locking screw 11 is threadedly connected to the inner surface of the threaded hole and penetrates into the inside of the through slot 201, one side of the locking screw 11 is in contact with the surface of the second support plate 3, after adjusting the total length of the first support plate 2 and the second support plate 3, the locking screw 11 is tightened to fix the second support plate 3 through the friction between the locking screw 11 and the second support plate 3, avoiding the sliding of the second support plate 3 and the first support plate 2.

[0037] Compared with the prior art, the utility model has the following beneficial effects:

[0038] The outer surface of the threaded rod 7 is provided with a thread matched with the inner surface of the internally-threaded sleeve 6, the outer surface of the threaded rod 7 is threadedly connected to the inner surface of the internally-threaded sleeve 6, rotating the internally-threaded sleeve 6 can change the length of the threaded rod 7 connected to the inside of the internally-threaded sleeve 6, thereby changing the total length of the jacking device 4 to drive the two groups of support plates 1 to adapt to different widths of foundation pits, by setting the first support plate 2 and the second support plate 3 sliding with each other, the total length of the two groups of support plates 1 can be adjusted by sliding the second support plate 3, thereby facilitating the support work of foundation pits of different lengths, using more convenient, by making the connecting block 5 and the threaded rod 7 hinged with the first support plate 2 and the second support plate 3, the two groups of support plates 1 can adapt to foundation pits with inclined surfaces on both sides, making the use range of the whole device more extensive.

Claims

1. A foundation pit support structure characterized by: The utility model provides a support plate, including two groups of support plates (1), each group of support plate (1) includes first support (2) and second support (3), first support (2) and second support (3) are connected with each other and slide, and four roof support devices (4) are hinged between two groups of support plates (1), the roof support device (4) includes connecting block (5), one side of connecting block (5) is rotatably connected with a internal thread sleeve (6), the internal thread sleeve (6) is internally threadedly connected with a threaded rod (7), and connecting block (5) and threaded rod (7) are hinged with two groups of support plates (1), one side of each first support (2) is threadedly connected with a locking screw (11).

2. A foundation pit support structure according to claim 1, wherein: Both sides of first support (2) and second support (3) are fixedly connected with two hinged grooves (8), and each hinged groove (8) is internally fixedly connected with a hinged shaft (9).

3. A retaining structure according to claim 2, wherein: One side of first support (2) is provided with a through groove (201), the outer surface of one side of second support (3) is matched with the inner surface of through groove (201), and the outer surface of one side of second support (3) is slidably connected to the inner surface of through groove (201).

4. A retaining structure according to claim 3, wherein: The upper and lower sides of through groove (201) are penetrated to the outside of first support (2), and both sides of second support (3) are fixedly connected with a limiting block (301) respectively, and the outside of limiting block (301) is slidably connected to the inside of through groove (201).

5. A retaining structure according to claim 4, wherein: Both sides of connecting block (5) and threaded rod (7) are provided with a hinged hole (10), the inner surface of hinged hole (10) is matched with the outer surface of hinged shaft (9), the inner surface of hinged hole (10) is hinged to the outer surface of hinged shaft (9), and both sides of connecting block (5) and threaded rod (7) are clamped in the inside of hinged groove (8).

6. A retaining structure according to claim 5 wherein: One side of connecting block (5) is provided with a rotating hole (501), one side of internal thread sleeve (6) is fixedly connected with a rotating block (601), and the outer surface of rotating block (601) is rotatably connected to the inner surface of rotating hole (501).

7. A retaining structure according to claim 6 wherein: The outer surface of threaded rod (7) and the inner surface of internal thread sleeve (6) are provided with matched threads, and the outer surface of threaded rod (7) is threadedly connected to the inner surface of internal thread sleeve (6).

8. A retaining structure according to claim 7, wherein: One side of first support (2) is provided with a threaded hole, the locking screw (11) is threadedly connected to the inner surface of the threaded hole and penetrates to the inside of through groove (201), and one side of locking screw (11) is in contact with the surface of second support (3).

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