CN218148407U - Civil engineering foundation ditch excavation bearing structure - Google Patents

Abstract

The utility model discloses a foundation pit excavation support structure for civil engineering, which comprises a device base, a fixed block is arranged on the side of the front end of the movable connecting rod, and the fixed block is arranged inside a limit groove, and the outer surface of the end of the fixed block is Limit nuts are arranged on the surface. The civil foundation pit excavation support structure is provided with a fixed bracket, the fixed bracket is provided with a first threaded rod, and the position of the sliding support plate forms a left and right movement structure on the upper surface of the device base under the action of the rotation of the first threaded rod, so that The distance between the sliding support plate and the fixed support plate can be adjusted accordingly according to the needs; a sliding base is provided, and the sliding base can move along the sliding groove under the action of the second threaded rod, and the fixing between the moving bases The position between the connecting rod and the sliding connecting rod can be changed by adjusting the position of the moving base, so that the angles of the sliding support plate and the fixed support plate can be adjusted at any time as required.

Description

A support structure for excavation of a civil foundation pit

technical field

The utility model relates to the technical field of foundation pit excavation support, in particular to a foundation pit excavation support structure for civil engineering.

Background technique

The foundation pit is an earth pit excavated at the foundation design position according to the base level and foundation plane size. Before excavation, the excavation plan should be determined according to the geological and hydrological data, combined with the conditions of the nearby buildings, and the waterproof and drainage work should be done well. If the excavation is not deep, the method of setting the side slope can be used to stabilize the soil slope. The construction regulations have determined that the internal sides of the excavated foundation pits currently on the market are not necessarily vertical. The existing support devices cannot be adjusted at any time according to the angle of the inner surface of the foundation pit. The position of the baffle to the support function cannot be adjusted.

Chinese utility model 202021633256.3 discloses a foundation pit excavation support device for civil engineering construction. Through the base plate and the first fender, the left side of the top of the base plate is fixedly connected to the bottom of the first fender, and the right side of the first fender is fixedly connected to the bottom of the first fender. Both the front and the back are fixedly connected with L-shaped clamps, and a second fender is slidably connected between the two L-shaped clamps, and the second fender can be positioned between the first fender and the two L-shaped clamps. Sliding up and down in the sliding groove formed between them, it is convenient to adjust the height of the fender to support foundation pits of different heights. It has a wide range of applications. The front and back of the top of the bottom plate are connected with telescopic rods through rotating shafts. Two telescopic rods The output ends of each are connected to the second fender through the rotating shaft. While adjusting the height of the second fender, the telescopic rod will expand and contract accordingly to adapt to the support at different heights. The support effect is better and the safety is higher. The applicability is further improved, but in actual use, the inner sides of the excavated foundation pit are not necessarily vertical angles, and the above-mentioned support device cannot be adjusted accordingly at any time according to the angle of the inner surface of the foundation pit , so we propose a civil foundation pit excavation support structure in order to solve the problems raised above.

Utility model content

The purpose of this utility model is to provide a kind of support structure for the excavation of civil foundation pits, to solve the problem that the internal sides of the excavated foundation pits on the market proposed by the above-mentioned background technology are not necessarily vertical angles, and the existing support devices The device cannot be adjusted at any time according to the angle of the inner surface of the foundation pit, and the position of the baffle on the support device that plays a supporting role cannot be adjusted.

In order to achieve the above purpose, the utility model provides the following technical solutions: a civil foundation pit excavation support structure, including a device base and a fixed shaft, the outer surface of the fixed shaft is respectively provided with a fixed connecting rod and a movable connecting rod, the The bottom of the fixed connecting rod is provided with a connecting groove, and the front end of the movable connecting rod is arranged inside the connecting groove, the side of the connecting groove is provided with a limiting groove, the side of the front end of the movable connecting rod is provided with a fixed block, and the fixed block It is arranged inside the limiting groove, and the outer surface of the end of the fixing block is provided with a limiting nut.

Preferably, the upper surface of the base of the device is provided with a fixed support plate and a sliding support plate, the upper surface of the base of the device is provided with a fixed bracket, and a first threaded rod is connected between the fixed bracket and the sliding support plate, so that The fixed support plate is set in the middle of the upper surface of the device base, and the fixed support plate is fixedly connected to the device base, the sliding support plate is symmetrically arranged on both sides of the fixed support plate, and the fixed bracket is symmetrically arranged on the device base. The upper surface of the base, and the fixed support and the device base are fixedly connected, the first threaded rod and the fixed support are threaded, and the first threaded rod and the sliding support plate are connected by a bearing, the sliding The support plate forms a left and right movement structure on the upper surface of the device base through the first threaded rod.

Preferably, the outer surfaces of the fixed support plate and the sliding support plate are provided with sliding grooves, the inside of the sliding grooves are provided with second threaded rods, and the outer surface of the second threaded rods is provided with a moving base, so The mobile base is provided with a fixed shaft, and the sliding grooves are set in the middle positions of the outer surfaces of the fixed support plate and the sliding support plate respectively, and the second threaded rod is connected with the fixed support plate and the sliding support plate by bearings. The moving base is threadedly connected to the second threaded rod, and the moving base forms a moving structure inside the sliding groove through the second threaded rod, and the fixed shaft is fixedly connected to the moving base.

Preferably, the fixed connecting rod, the movable connecting rod and the fixed shaft are connected by rotation, the connecting groove is opened in the middle of the bottom surface of the fixed connecting rod, and the movable connecting rod and the fixed connecting rod are connected by sliding , the fixed block is fixedly connected to the side of the movable connecting rod, and the sliding connection is used between the fixed block and the limit groove, and the movable connecting rod is formed between the fixed block and the limit nut and the fixed connecting rod. Integrated structure.

Compared with the prior art, the beneficial effect of the utility model is: the excavation support structure of the civil foundation pit:

(1) A fixed bracket is provided, and a first threaded rod is arranged on the fixed bracket. The position of the sliding support plate forms a left and right movement structure on the upper surface of the device base under the action of the rotation of the first threaded rod, so that the sliding support plate and the fixed The spacing between the support plates can be adjusted accordingly;

(2) A mobile base is provided, and the mobile base can move its position along the sliding groove under the action of the second threaded rod. The adjustment movement is changed, so that the angles of the sliding support plate and the fixed support plate can be adjusted at any time as required.

Description of drawings

Fig. 1 is a schematic diagram of the main view structure of the utility model;

Fig. 2 is a schematic diagram of the rear view structure of the utility model;

Fig. 3 is a schematic diagram of the side section structure of the utility model.

In the figure: 1. Device base; 2. Fixed support plate; 3. Sliding support plate; 4. Fixed bracket; 5. First threaded rod; 6. Slide groove; 7. Second threaded rod; 8. Mobile base; 9 10. Fixed connecting rod; 11. Movable connecting rod; 12. Connecting groove; 13. Limiting groove; 14. Fixed block; 15. Limiting nut.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-3, the utility model provides a technical solution: a civil foundation pit excavation support structure, including a device base 1 and a fixed shaft 9, the outer surface of the fixed shaft 9 is respectively provided with a fixed connecting rod 10 and a movable Connecting rod 11, the bottom of fixed connecting rod 10 is provided with connecting groove 12, and the front end of movable connecting rod 11 is arranged in the inside of connecting groove 12, and the side of connecting groove 12 offers limit groove 13, and the side of movable connecting rod 11 front end is arranged There is a fixed block 14, and the fixed block 14 is arranged inside the limiting groove 13, and the outer surface of the end of the fixed block 14 is provided with a limiting nut 15.

The upper surface of the device base 1 is provided with a fixed support plate 2 and a sliding support plate 3, and the upper surface of the device base 1 is provided with a fixed support 4, and a first threaded rod 5 is connected between the fixed support 4 and the sliding support plate 3, and the fixed support The plate 2 is arranged in the middle of the upper surface of the device base 1, and the fixed support plate 2 is fixedly connected to the device base 1, the sliding support plate 3 is symmetrically arranged on both sides of the fixed support plate 2, and the fixed bracket 4 is symmetrically arranged on the device base 1. The upper surface of the base 1, and the fixed support 4 and the device base 1 are fixedly connected, so that the position of the fixed support 4 is stably connected with the device base 1, and the first threaded rod 5 and the fixed support 4 are threaded. , and the first threaded rod 5 and the sliding support plate 3 are connected by bearings, so that the sliding support plate 3 will not rotate with the first threaded rod 5 when it is displaced, and the sliding support plate 3 is installed in the device through the first threaded rod 5 The upper surface of the base 1 constitutes a left and right movement structure, so that the position of the sliding support plate 3 can be adjusted.

The outer surfaces of the fixed support plate 2 and the sliding support plate 3 are all provided with sliding grooves 6, and the inside of the sliding grooves 6 is provided with a second threaded rod 7, and the outer surface of the second threaded rod 7 is provided with a mobile base 8, and the mobile base 8 A fixed shaft 9 is arranged on the top, and sliding grooves 6 are provided in the middle positions of the outer surfaces of the fixed support plate 2 and the sliding support plate 3 respectively, and the second threaded rod 7 is connected with the fixed support plate 2 and the sliding support plate 3 by bearings. The rotation of the second threaded rod 7 will not be restricted by the fixed support plate 2 and the sliding support plate 3, the mobile base 8 is threadedly connected with the second threaded rod 7, and the mobile base 8 is sliding through the second threaded rod 7 The inside of the groove 6 constitutes a moving structure, so that the position of the moving base 8 can be adjusted, and the fixed shaft 9 and the moving base 8 are fixedly connected.

Both the fixed connecting rod 10 and the movable connecting rod 11 are connected in rotation with the fixed shaft 9, the connecting groove 12 is provided at the middle position of the bottom surface of the fixed connecting rod 10, and the movable connecting rod 11 and the fixed connecting rod 10 are slidingly connected, so that The position of the movable connecting rod 11 can be adjusted, and it is fixedly connected between the fixed block 14 and the side of the movable connecting rod 11, so that the fixed block 14 and the movable connecting rod 11 remain stably connected, and between the fixed block 14 and the limit groove 13 is Slidingly connected, the movable connecting rod 11 forms an integrated structure through the fixed block 14 and the limit nut 15 and the fixed connecting rod 10, so that the position of the movable connecting rod 11 can be kept fixed.

Working principle: When using the civil foundation pit to excavate the supporting structure, first, assemble the parts required by the device, fix the device base 1 on the bottom of the excavated foundation pit, and adjust the position of the sliding support plate 3 as needed Position, rotate the first threaded rod 5, the first threaded rod 5 drives the sliding support plate 3 to move the position on the upper surface of the device base 1, and stop rotating the first threaded rod 5 after the position of the sliding support plate 3 moves in place, according to The angle of the inner side of the foundation pit adjusts the angles of the fixed support plate 2 and the sliding support plate 3 .

Rotate and take off the limit nut 15, so that the position of the movable connecting rod 11 can be moved within the connection groove 12 and the limit groove 13, rotate the second threaded rod 7, and the second threaded rod 7 drives the mobile base 8 in the sliding groove The inside of 6 adjusts the position. After the position adjustment of the mobile base 8 is completed, stop rotating the second threaded rod 7. After the position adjustment of the mobile base 8 is completed, the positions of the fixed connecting rod 10 and the movable connecting rod 11 are also adjusted. , use the limit nut 15 to fix the position of the movable connecting rod 11, so that the angles of the fixed support plate 2 and the sliding support plate 3 are adjusted. The above is the working process of the device, and the content that is not described in detail in this manual All belong to the prior art known to those skilled in the art.

Claims (4)

1. The utility model provides a civil engineering foundation ditch excavation bearing structure, includes device base (1) and fixed axle (9), its characterized in that: the surface of fixed axle (9) is provided with fixed link (10) and swing joint pole (11) respectively, spread groove (12) have been seted up to the bottom of fixed link (10), and the front end setting of swing joint pole (11) is in the inside of spread groove (12), spacing groove (13) have been seted up to the side of spread groove (12), the side of swing joint pole (11) front end is provided with fixed block (14), and fixed block (14) set up the inside in spacing groove (13), the terminal surface of fixed block (14) is provided with stop nut (15).

2. The civil foundation pit excavation support structure of claim 1, characterized in that: the upper surface of device base (1) is provided with fixed support plate (2) and slip backup pad (3), the upper surface of device base (1) is provided with fixed bolster (4), be connected with first threaded rod (5) between fixed bolster (4) and slip backup pad (3), fixed support plate (2) set up the intermediate position at device base (1) upper surface, and be fixed connection between fixed support plate (2) and device base (1), slip backup pad (3) symmetry sets up the both sides at fixed support plate (2), fixed bolster (4) symmetry sets up the upper surface at device base (1), and is fixed connection between fixed bolster (4) and device base (1), be threaded connection between first threaded rod (5) and fixed bolster (4), and be connected for the bearing between first threaded rod (5) and the slip backup pad (3), slip backup pad (3) are through first threaded rod (5) and remove the right-left side-right side structure in the upper surface constitution of device base (1).

3. The civil foundation pit excavation support structure of claim 2, wherein: sliding tray (6) have all been seted up to the surface of stationary shoe board (2) and sliding support board (3), the inside of sliding tray (6) all is provided with second threaded rod (7), the surface of second threaded rod (7) is provided with removes base (8), be provided with fixed axle (9) on removing base (8), the intermediate position at stationary shoe board (2) and sliding support board (3) surface is seted up respectively in sliding tray (6), be the bearing between second threaded rod (7) and stationary shoe board (2) and sliding support board (3) and be connected, be threaded connection between removal base (8) and second threaded rod (7), and remove base (8) and constitute the removal structure through second threaded rod (7) in the inside of sliding tray (6), be fixed connection between fixed axle (9) and the removal base (8).

4. The civil foundation pit excavation support structure of claim 1, characterized in that: be swivelling joint between fixed link (10) and swing joint pole (11) and fixed axle (9), the intermediate position in fixed link (10) bottom surface is seted up in spread groove (12), be sliding connection between swing joint pole (11) and fixed link (10), be fixed connection between the side of fixed block (14) and swing joint pole (11), be sliding connection between fixed block (14) and spacing groove (13), swing joint pole (11) are through constituting integrated structure between fixed block (14) and stop nut (15) and fixed link (10).

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