Foundation pit supporting and protecting device

Abstract

The utility model provides a foundation pit supporting and protecting device which comprises supporting plates, a fixing frame is installed on the supporting plates, a plurality of adjusting plates are installed on the fixing frame, an adjusting piece is installed on the fixing frame, a supporting rod is installed between the two supporting plates, a splicing rod is installed on one side of the supporting rod in a threaded mode, and the splicing rod is connected with the adjusting piece. The other end of the splicing rod is installed on a supporting plate, four sliding grooves are evenly formed in the side, away from the supporting rod, of the supporting plate, and protection plates are installed on the sliding grooves. Compared with the prior art, the foundation pit supporting device has the advantages that supporting points can be conveniently adjusted according to the radians of the inner walls of different foundation pits, and the operation cost of foundation pit supporting is reduced.

Description

Technical Field

[0001] The utility model relates to a foundation pit support protection device, belonging to the field of foundation pit support. Background Art

[0002] The foundation pit is a pit dug at the foundation design location according to the base elevation and foundation plane dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data and the conditions of nearby buildings, and waterproofing and drainage should be done. If the excavation is not deep, the side slope can be used to stabilize the soil slope, and the slope size is determined according to relevant construction regulations. For deep excavations and those with nearby buildings, the pit wall support method and shotcrete wall protection method can be used. For large foundation pits, underground continuous walls and column-type bored pile interlocking methods can be used to prevent the outer soil layer from collapsing. For those without nearby buildings, the well point method can be used to lower the groundwater level and slope open excavation can be adopted. In cold areas, natural cold air freezing method can be adopted for excavation, etc. Various construction and operations are carried out in the foundation pit, which must ensure the safety of the operators and the stability of the slopes to prevent damage to the surrounding foundations or buildings and structures, and to prevent collapse from causing damage to the facilities in the foundation pit. In the prior art, the support methods are generally steel sheet pile support systems and formwork scaffolding support systems. Due to the different shapes of the foundation pits, steel plates of different shapes need to be prepared to support the inside of the foundation pit to avoid foundation pit collapse. The steel plates are heavy and difficult to carry, which increases the operating cost of the foundation pit support. Therefore, it is necessary to design a foundation pit support and protection device that can adjust the support points according to the shape of the foundation pit. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a foundation pit support and protection device to solve the problems raised in the above-mentioned background technology. The utility model facilitates the adjustment of support points according to different curvatures of the inner wall of the foundation pit, thereby reducing the operating costs of the foundation pit support.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a foundation pit support and protection device, including a support plate, a fixing frame is installed on the support plate, a plurality of adjustment plates are installed on the fixing frame, an adjustment member is installed on the fixing frame, a support rod is installed between two of the support plates, a splicing rod is threadedly installed on one side of the support rod, the other end of the splicing rod is installed on the support plate, four slide grooves are evenly opened on the side of the support plate away from the support rod, and a protective plate is installed on the slide groove.

[0005] Furthermore, a plurality of movable grooves are provided on the fixing frame, and the movable grooves are respectively provided above and below the adjusting plate, and adjusting members are installed in the movable grooves.

[0006] Furthermore, the adjusting member includes a threaded sleeve, which is fixedly installed at the bottom of the adjusting plate, the threaded sleeve is located inside the movable groove, the threaded sleeve is threadedly installed on the screw, a handle is installed at one end of the screw located outside the movable groove, the end of the screw away from the handle is inserted in a bearing, the bearing is located on one side of the movable groove, and the bearing is installed on a fixed frame.

[0007] Furthermore, a fixing ring is fixedly installed on the top of the adjustment plate, the fixing ring is located inside the movable groove, the fixing ring is sleeved on a guide rail, and the guide rail is installed in the movable groove.

[0008] Furthermore, four positioning rods are evenly installed on one side of the protective plate close to the slide slot, and the positioning rods are all inserted in the slide slot. Two clamping blocks are symmetrically installed on the positioning rods, and the clamping blocks are located on the inner side of the slide slot.

[0009] Furthermore, a threaded column is installed on one side of the support rod, and the threaded column is threadedly installed in a screw hole. A screw hole is opened on one side of the splicing rod close to the support rod, and a protective sleeve is sleeved on the outside of the support rod.

[0010] The beneficial effects of the utility model: the utility model is a foundation pit support and protection device, the handle is turned to drive the screw to rotate, the bearing can keep the screw to rotate smoothly in the moving groove to avoid jamming, and the screw will drive the threaded sleeve forward and backward while rotating, and the threaded sleeve will drive the adjustment plate to approach the inner wall of the foundation pit, pushing the protective plate to support the inner wall of the foundation pit, and the fixed ring sleeve installed above the adjustment plate is arranged on the guide rail, which limits the up and down movement of the adjustment plate, so that the adjustment plate can move stably in the fixed frame.

[0011] The four positioning rods installed on one side of the protective plate are all inserted in the slide groove. Two blocks are symmetrically installed on the positioning rods. The blocks can limit the position of the positioning rods to prevent the positioning rods from falling off from the slide groove during use and affecting the moving position of the protective plate. The protective plate is made of rubber and can deform as the adjustment plate moves.

[0012] A threaded column is installed on one side of the support rod, and the threaded column is inserted into the screw hole. Through the splicing of the threaded column and the screw hole, it is convenient to adjust the distance between the two support plates according to different foundation pit widths, support the two support plates, and prevent the support plates from tipping over during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of a foundation pit support and protection device of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of an adjustment plate in a foundation pit support and protection device of the utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of a protective plate in a foundation pit support and protection device of the utility model;

[0017] Figure 4 This is a schematic diagram of the overall structure of a support rod in a foundation pit support and protection device of the utility model;

[0018] In the figure: 1. support plate; 2. fixing frame; 3. adjustment plate; 4. support rod; 5. protective plate; 6. slide groove; 7. moving groove; 8. guide rail; 9. fixing ring; 10. bearing; 11. screw rod; 12. threaded sleeve; 13. handle; 14. positioning rod; 15. block; 16. threaded column; 17. screw hole; 18. protective sleeve; 19. splicing rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1-Figure 4 The utility model provides a technical solution: a foundation pit support and protection device, including a support plate 1, a fixed frame 2 is installed on the support plate 1, a plurality of adjusting plates 3 are installed on the fixed frame 2, an adjusting piece is installed on the fixed frame 2, a support rod 4 is installed between the two support plates 1, a splicing rod 19 is threadedly installed on one side of the support rod 4, and the other end of the splicing rod 19 is installed on the support plate 1, and four slide grooves 6 are evenly opened on the side of the support plate 1 away from the support rod 4, and a protective plate 5 is installed on the slide groove 6, and a plurality of movable grooves 7 are opened on the fixed frame 2, and the movable grooves 7 are respectively opened above and below the adjusting plate 3, and an adjusting piece is installed in the movable groove 7. The arranged adjusting piece can control the moving position of the adjusting plate 3, so that the adjusting plate 3 moves outward to drive the protective plate 5 to fit the inner wall of the foundation pit, thereby supporting the inner wall of the foundation pit.

[0021] See also Figure 2The adjusting member includes a threaded sleeve 12, which is fixedly mounted on the bottom of the adjusting plate 3, the threaded sleeve 12 is located inside the moving groove 7, the threaded sleeve 12 is threadedly mounted on the screw 11, and a handle 13 is installed at one end of the screw 11 located outside the moving groove 7. The end of the screw 11 away from the handle 13 is inserted in the bearing 10, the bearing 10 is located on one side of the moving groove 7, and the bearing 10 is mounted on the fixed frame 2. A fixing ring 9 is fixedly mounted on the top of the adjusting plate 3, the fixing ring 9 is located inside the moving groove 7, the fixing ring 9 is sleeved on the guide rail 8, and the guide rail 8 is installed in the moving groove 7. Through the cooperation of the set fixing ring 9 and the guide rail 8, the adjusting plate 3 can move synchronously when the threaded sleeve 12 drives the adjusting plate 3, and the floating amplitude of the adjusting plate 3 in the moving groove 7 is limited.

[0022] See also Figure 3 and Figure 4 Four positioning rods 14 are evenly installed on the side of the protective plate 5 close to the slide groove 6, and the positioning rods 14 are all inserted in the slide groove 6. Two blocks 15 are symmetrically installed on the positioning rod 14, and the block 15 is located on the inner side of the slide groove 6. A threaded column 16 is installed on one side of the support rod 4, and the threaded column 16 is threadedly installed in the screw hole 17. A screw hole 17 is opened on the side of the splicing rod 19 close to the support rod 4, and a protective sleeve 18 is provided on the outside of the support rod 4. The protective sleeve 18 can protect the connection between the support rod 4 and the splicing rod 19 to prevent rainwater, sand and gravel and other debris from getting stuck in the gap at the connection, increasing the difficulty of disassembly.

[0023] Specific implementation method: Turning the handle 13 drives the screw 11 to rotate, and the bearing 10 can keep the screw 11 rotating smoothly in the moving groove 7 to avoid jamming. The screw 11 rotates and drives the threaded sleeve 12 to move forward and backward. The threaded sleeve 12 drives the adjustment plate 3 to approach the inner wall of the foundation pit, and pushes the protective plate 5 to support the inner wall of the foundation pit. The fixing ring 9 installed above the adjustment plate 3 is sleeved on the guide rail 8, which limits the range of up and down movement of the adjustment plate 3, so that the adjustment plate 3 can move stably in the fixing frame 2. The four positioning rods 14 installed on one side of the protective plate 5 are all inserted in the slide groove 6. The positioning Two blocks 15 are symmetrically installed on the rod 14. The blocks 15 can limit the position of the positioning rod 14 to prevent the positioning rod 14 from falling off from the inside of the slide groove 6 during use, affecting the moving position of the protective plate 5. The protective plate 5 is made of rubber material and can deform with the moving position of the adjustment plate 3. A threaded column 16 is installed on one side of the support rod 4. The threaded column 16 is inserted in the screw hole 17. Through the splicing of the threaded column 16 and the screw hole 17, it is convenient to adjust the distance between the two support plates 1 according to different foundation pit widths, support the two support plates 1, and prevent the support plates 1 from tipping over during use.

[0024] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A foundation pit support and protection device, comprising a support plate (1), characterized in that: A fixing frame (2) is mounted on the support plate (1), a plurality of adjustment plates (3) are mounted on the fixing frame (2), an adjustment member is mounted on the fixing frame (2), a support rod (4) is mounted between the two support plates (1), a splicing rod (19) is threadedly mounted on one side of the support rod (4), the other end of the splicing rod (19) is mounted on the support plate (1), and four slide grooves (6) are evenly formed on a side of the support plate (1) away from the support rod (4), and a protective plate (5) is mounted on the slide groove (6).

2. A foundation pit support and protection device according to claim 1, characterized in that: The fixing frame (2) is provided with a plurality of movable grooves (7), the movable grooves (7) being respectively provided above and below the adjustment plate (3), and adjustment members are installed in the movable grooves (7).

3. A foundation pit support and protection device according to claim 2, characterized in that: The adjusting member comprises a threaded sleeve (12), wherein the threaded sleeve (12) is fixedly mounted on the bottom of the adjusting plate (3), the threaded sleeve (12) is located inside the movable groove (7), the threaded sleeve (12) is threadedly mounted on a screw rod (11), a handle (13) is mounted on one end of the screw rod (11) located outside the movable groove (7), an end of the screw rod (11) away from the handle (13) is inserted into a bearing (10), the bearing (10) is located on one side of the movable groove (7), and the bearing (10) is mounted on a fixed frame (2).

4. A foundation pit support and protection device according to claim 2, characterized in that: A fixing ring (9) is fixedly mounted on the top of the adjustment plate (3); the fixing ring (9) is located inside the movable groove (7); the fixing ring (9) is sleeved on a guide rail (8); and the guide rail (8) is mounted in the movable groove (7).

5. The foundation pit support and protection device according to claim 1, characterized in that: Four positioning rods (14) are evenly mounted on one side of the protective plate (5) close to the slide groove (6), and the positioning rods (14) are all inserted into the slide groove (6). Two clamping blocks (15) are symmetrically mounted on the positioning rods (14), and the clamping blocks (15) are located on the inner side of the slide groove (6).

6. A foundation pit support and protection device according to claim 1, characterized in that: A threaded column (16) is installed on one side of the support rod (4), and the threaded column (16) is threadedly installed in a screw hole (17). A screw hole (17) is provided on a side of the splicing rod (19) close to the support rod (4), and a protective sleeve (18) is sleeved on the outside of the support rod (4).

Images