Foundation pit supporting device for building construction

Abstract

The utility model relates to the field of building construction, and discloses a building construction foundation pit supporting device which comprises a supporting plate, a splicing assembly is arranged on the outer wall of the top end of the supporting plate, a connecting plate is connected to the inner side wall of the supporting plate in a sliding mode, and hinge rods are hinged to the two sides of the connecting plate. A supporting plate is hinged to the end, away from the connecting plate, of the hinge rod, a fixing block is fixedly connected to the outer wall of the bottom end of the supporting plate, two sets of positioning screws penetrate through the inner wall of the fixing block in a threaded connection mode, and two sets of guide wheels are rotationally connected to the inner wall of the positioning plate. According to the device, through the design of a combined structure of the connecting plate, the hinge rod and the supporting plate, a triangular supporting structure and the connection of the positioning screw rod and the foundation pit pavement, the stability of the device is greatly improved, and meanwhile when the device is not used, the hinge rod and the supporting plate can be synchronously stored through the movement of the positioning plate; therefore, the overall occupied space can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a support device for foundation pits in building construction. Background Technology

[0002] A construction pit is a deep pit or depression excavated in a construction project to carry out underground construction (such as foundations, basements, etc.). Pits are usually excavated to accommodate the structure to be built or to provide sufficient space for construction.

[0003] In building construction, foundation pit support is a key link to ensure the safe progress of the project. A good foundation pit support device can effectively prevent foundation pit collapse and protect the safety of construction workers and the surrounding environment.

[0004] However, existing support devices have some shortcomings: on the one hand, the existing support devices require a lot of welding and bolting during use, which is not only cumbersome to operate, but also prone to problems such as unstable connections; and when disassembling, special tools are required for cutting, which increases construction costs. On the other hand, when supporting different construction pits, the existing support plate structure has a fixed height and other settings, which cannot achieve flexible support for pits of different depths. Therefore, a construction pit support device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a foundation pit support device for building construction, which aims to improve the existing technology that requires a large amount of welding and bolting, which is not only cumbersome to operate, but also prone to problems such as unstable connections.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a foundation pit support device for building construction, comprising a support plate, a splicing assembly provided on the outer wall of the top of the support plate, a connecting plate slidably connected to the inner side wall of the support plate, hinge rods hinged to both sides of the connecting plate, a support plate hinged to the end of the hinge rod away from the connecting plate, a fixing block fixedly connected to the outer wall of the bottom of the support plate, two sets of positioning screws threaded through and threaded to the inner wall of the fixing block, and a positioning assembly provided on the surface of the connecting plate, the positioning assembly including a positioning plate;

[0007] The top of the outer wall of the positioning plate is in contact with an operating block. Two sets of traction ropes are fixedly connected to the bottom of the outer wall of the operating block. The ends of the two sets of traction ropes away from the operating block are fixedly connected to insert blocks. The two sets of insert blocks are elastically connected to the inner wall of the positioning plate by limiting springs. Two sets of guide wheels are rotatably connected to the inner wall of the positioning plate.

[0008] As a further description of the above technical solution:

[0009] The splicing assembly includes a fixing base, and a fixing column is fixedly connected to the top of the outer wall of the fixing base. The splicing base is elastically connected to the surface of the fixing column by a spiral spring.

[0010] As a further description of the above technical solution:

[0011] The support plate is rotatably connected to the inner wall at the bottom of the support plate, and the outer wall of the fixing block is in contact with the surface of the support plate.

[0012] As a further description of the above technical solution:

[0013] The positioning plate is fixedly connected to the outer wall of the connecting plate, and the positioning plate is slidably connected to the inner side wall of the connecting plate. The outer wall of the traction rope is in contact with the surface of the guide wheel, and the traction rope is slidably connected to the inner wall of the positioning plate.

[0014] As a further description of the above technical solution:

[0015] One end of the limiting spring is fixedly connected to the outer wall of the insert block, and the other end of the limiting spring is fixedly connected to the inner walls on both sides of the positioning plate.

[0016] As a further description of the above technical solution:

[0017] The two sets of inserts are slidably connected to the inner wall of the positioning plate. The inner side wall of the support plate has two sets of through holes, and the outer wall of the insert is inserted into the inner wall of the through hole.

[0018] As a further description of the above technical solution:

[0019] The fixing seat is fixedly connected to the outer wall of the top of the support plate, one end of the spiral spring is fixedly connected to the surface of the fixing column, and the other end of the spiral spring is fixedly connected to the inner wall of the splicing seat.

[0020] As a further description of the above technical solution:

[0021] The splicing base is rotatably connected to the surface of the fixed column. The surface of the splicing base has two sets of through internal threaded grooves. The positioning screw is threadedly connected to the inner wall of the internal threaded groove of the splicing base.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the stability of the device is greatly improved by the combination structure of the connecting plate, the hinge rod and the support plate, the design of the triangular support structure, and the connection between the positioning screw and the foundation pit road surface. At the same time, when not in use, the hinge rod and the support plate can be stored in a synchronized manner by moving the positioning plate, thereby reducing the overall space occupied.

[0024] 2. In this utility model, the design of the splicing components allows the support device to be vertically spliced, thereby allowing the height of the two to be adjusted to adapt to the construction of foundation pits at different heights, thus expanding the application range of the device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a foundation pit support device for building construction proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the hinged rod and support plate in the folded state of a foundation pit support device for building construction proposed in this utility model.

[0027] Figure 3 This is a partial cross-sectional view of the left side of the support plate and the left side of the positioning plate of a foundation pit support device for building construction proposed in this utility model.

[0028] Figure 4 This utility model proposes a foundation pit support device for building construction. Figure 3 Enlarged structural diagram of section A;

[0029] Figure 5 This utility model proposes a foundation pit support device for building construction. Figure 3 Enlarged structural diagram of section B;

[0030] Figure 6 This is a partial cross-sectional view of the splicing base of a foundation pit support device for building construction proposed in this utility model.

[0031] Legend:

[0032] 1. Support plate; 2. Splicing assembly; 21. Fixing seat; 22. Fixing column; 23. Spiral spring; 24. Splicing seat; 3. Connecting plate; 4. Hinge rod; 5. Support plate; 6. Fixing block; 7. Positioning assembly; 71. Positioning plate; 72. Operating block; 73. Traction rope; 74. Guide wheel; 75. Limit spring; 76. Insert block; 8. Positioning screw. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figure 1 - Figure 3This utility model provides an embodiment of a construction pit support device, including a support plate 1, a splicing component 2 on the outer wall of the top of the support plate 1, a connecting plate 3 slidably connected to the inner side wall of the support plate 1, hinge rods 4 hinged to both sides of the connecting plate 3, and a support plate 5 hinged to the end of the hinge rod 4 away from the connecting plate 3. By providing the connecting plate 3, the hinge rods 4 can be pushed up and down on the inner wall of the support plate 1 by the up and down movement of the connecting plate 3, thereby pushing the support plate 5 to drive the fixing block 6 to rotate around its rotation center point, so that the fixing block 6 can contact the road surface of the pit, thereby fixing the support position of the support plate 1 and protecting the construction pit.

[0035] Reference Figure 2 and Figure 3 A fixing block 6 is fixedly connected to the outer wall of the bottom end of the support plate 5. When the support plate 5 is pushed down by the hinge rod 4, it will unfold around its rotation center point, so that the support plate 1, the hinge rod 4 and the support plate 5 can form a triangle, which can stably support the entire support plate 1. The support plate 5 is rotatably connected to the inner wall of the bottom end of the support plate 1. The outer wall of the fixing block 6 is in contact with the surface of the support plate 1. Two sets of positioning screws 8 are threaded through and threaded to the inner wall of the fixing block 6. The surface of the positioning screws 8 is provided with a handle. By rotating the handle, the positioning screws 8 can be moved downward in the threaded position on the inner wall of the fixing block 6, so that the whole can enter the interior of the construction pit pavement, thereby increasing the stability of the whole. The inner wall of the fixing block 6 is provided with an internal thread groove that fits the positioning screws 8. The surface of the connecting plate 3 is provided with a positioning component 7.

[0036] Reference Figure 3 - Figure 5 The positioning component 7 includes a positioning plate 71, which is fixedly connected to the outer wall of the connecting plate 3. The up-and-down movement of the positioning plate 71 causes the connecting plate 3 to move synchronously up and down, thus moving the hinge rod 4 and the support plate 5 to their positions after use and storage. The positioning plate 71 is slidably connected to the inner side wall of the connecting plate 3. The outer wall of the traction rope 73 contacts the surface of the guide wheel 74. The guide wheel 74 guides the position of the traction rope 73, preventing it from colliding with the inner wall of the positioning plate 71. The right-angle contact between the walls will cause the traction rope 73 to wear faster. The traction rope 73 is slidably connected to the inner wall of the positioning plate 71. The top of the outer wall of the positioning plate 71 contacts the operating block 72. Two sets of traction ropes 73 are fixedly connected to the bottom of the outer wall of the operating block 72. The ends of the two sets of traction ropes 73 away from the operating block 72 are fixedly connected to the insert blocks 76. The surface of the operating block 72 is provided with a handle. By pulling the handle, the operating block 72 can drive the two sets of traction ropes 73 to move upward synchronously, thereby synchronously pulling the two sets of insert blocks 76 to move closer to each other.

[0037] Reference Figure 3 and Figure 5 Two sets of insert blocks 76 are elastically connected to the inner wall of the positioning plate 71 by limiting springs 75. One end of the limiting spring 75 is fixedly connected to the outer wall of the insert block 76, and the other end of the limiting spring 75 is fixedly connected to the inner walls on both sides of the positioning plate 71. The function of the limiting spring 75 is to allow the insert block 76 to automatically reset its position after being pulled and moved by the traction rope 73, thereby driving the traction rope 73 and the operating block 72 to move synchronously. The two sets of insert blocks 76 are slidably connected to the inner wall of the positioning plate 71. The inner side wall of the support plate 1 has two sets of through holes, and the outer wall of the insert block 76 is inserted into the inner wall of the through hole. The insertion between the two allows the positioning plate 71 to drive the connecting plate 3 to allow the hinge rod 4 and the support plate 5 to unfold and be fixed in their retracted positions. The inner wall of the positioning plate 71 is rotatably connected to two sets of guide wheels 74.

[0038] Reference Figure 1 and Figure 6 The splicing assembly 2 includes a fixing base 21, which is fixedly connected to the outer wall of the top of the support plate 1. One end of the spiral spring 23 is fixedly connected to the surface of the fixing post 22, and the other end of the spiral spring 23 is fixedly connected to the inner wall of the splicing base 24. The function of the spiral spring 23 is to fix the position of the splicing base 24 after it has rotated around the surface of the fixing base 21, and the initial position of the splicing base 24 is in a state of elastic support and folding by the spiral spring 23. The fixing post 22 is fixedly connected to the top of the outer wall of the fixing base 21. The surface of the fixed column 22 is elastically connected to the splicing seat 24 by the spiral spring 23. The splicing seat 24 is rotatably connected to the surface of the fixed column 22. The surface of the splicing seat 24 has two sets of through internal threaded grooves. The positioning screw 8 is threadedly connected to the inner wall of the internal threaded groove of the splicing seat 24. The threaded connection between the two allows the two sets of fixing blocks 6 at the bottom of the upper set of support plates 1 to be quickly spliced ​​with the splicing seat 24, so that the two sets of support plates 1 can be spliced ​​vertically, thereby providing support for foundation pit construction at different heights.

[0039] Working principle: First, when support is needed at the foundation pit, the operating block 72 is pulled upward by the handle on its surface. The operating block 72 drives the two sets of traction ropes 73 to move upward synchronously. The traction ropes 73 slide on the inner wall of the positioning plate 71 and are guided by the guide wheel 74 to avoid right-angle contact with the inner wall of the positioning plate 71, which would accelerate wear. The traction ropes 73 pull the two sets of inserts 76 closer together. At this time, the limit spring 75 is compressed. As the inserts 76 move, they will disengage from the through hole at the current position of the support plate 1. At this time, the positioning plate 71 can be pushed to drive the connecting plate 3 to move downward. When the connecting plate 3 moves, it pushes the hinge rod 4 inside the support plate 1. The wall moves downward, which in turn pushes the support plate 5 to drive the fixed block 6 to rotate around its rotation center point, so that the fixed block 6 contacts the foundation pit road surface. At this time, the support plate 1, the hinge rod 4 and the support plate 5 form a triangle, which provides stable support for the entire support plate 1. Then, by turning the positioning screw 8 with the handle, it moves downward on the inner wall thread of the fixed block 6 and enters the interior of the construction foundation pit road surface, further increasing the overall stability. At this time, the insert block 76 can be ejected outward under the elastic action of the limit spring 75 and inserted into the through hole, fixing the positioning plate 71, the connecting plate 3, the hinge rod 4 and the support plate 5 in the unfolded position.

[0040] When multiple sets of support plates 1 need to be vertically spliced ​​to adapt to foundation pit construction at different heights, the two sets of fixing blocks 6 at the bottom of the upper set of support plates 1 are spliced ​​with the splicing seat 24 at the top of the lower set of support plates 1. Since the initial position of the splicing seat 24 is in a state of elastic support and folding by the spiral spring 23, the splicing seat 24 is first rotated and unfolded around the fixing column 22. Then, the positioning screw 8 is rotated by the handle on the surface of the positioning screw 8 so that it is threadedly connected with the internal thread groove on the surface of the splicing seat 24, and the fixing block 6 at the bottom of the upper set of support plates 1 and the splicing seat 24 are quickly spliced ​​together to realize the vertical splicing of the two sets of support plates 1. The spiral spring 23 automatically resets the position of the splicing seat 24 after the threaded connection of the positioning screw 8 is removed.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foundation pit support device for building construction, comprising a support plate (1), characterized in that: The outer wall of the top of the support plate (1) is provided with a splicing component (2), the inner side wall of the support plate (1) is slidably connected with a connecting plate (3), the two sides of the connecting plate (3) are hinged with hinge rods (4), the end of the hinge rod (4) away from the connecting plate (3) is hinged with a support plate (5), the outer wall of the bottom end of the support plate (5) is fixedly connected with a fixing block (6), the inner wall of the fixing block (6) is threaded with two sets of positioning screws (8), the surface of the connecting plate (3) is provided with a positioning component (7), the positioning component (7) includes a positioning plate (71); The top of the outer wall of the positioning plate (71) is in contact with an operating block (72). The bottom of the outer wall of the operating block (72) is fixedly connected to two sets of traction ropes (73). The ends of the two sets of traction ropes (73) away from the operating block (72) are fixedly connected to insert blocks (76). The two sets of insert blocks (76) are elastically connected to the inner wall of the positioning plate (71) by limiting springs (75). The inner wall of the positioning plate (71) is rotatably connected to two sets of guide wheels (74).

2. The foundation pit support device for building construction according to claim 1, characterized in that: The splicing assembly (2) includes a fixing base (21), and a fixing column (22) is fixedly connected to the top of the outer wall of the fixing base (21). The surface of the fixing column (22) is elastically connected to the splicing base (24) by a spiral spring (23).

3. The foundation pit support device for building construction according to claim 1, characterized in that: The support plate (5) is rotatably connected to the inner wall of the bottom end of the support plate (1), and the outer wall of the fixing block (6) is in contact with the surface of the support plate (1).

4. The foundation pit support device for building construction according to claim 1, characterized in that: The positioning plate (71) is fixedly connected to the outer wall of the connecting plate (3), the positioning plate (71) is slidably connected to the inner side wall of the connecting plate (3), the outer wall of the traction rope (73) is in contact with the surface of the guide wheel (74), and the traction rope (73) is slidably connected to the inner wall of the positioning plate (71).

5. A foundation pit support device for building construction according to claim 1, characterized in that: One end of the limiting spring (75) is fixedly connected to the outer wall of the insert (76), and the other end of the limiting spring (75) is fixedly connected to the inner walls on both sides of the positioning plate (71).

6. A foundation pit support device for building construction according to claim 1, characterized in that: The two sets of inserts (76) are slidably connected to the inner wall of the positioning plate (71). The inner side wall of the support plate (1) is provided with two sets of through holes, and the outer wall of the insert (76) is inserted into the inner wall of the through hole.

7. A foundation pit support device for building construction according to claim 2, characterized in that: The fixed seat (21) is fixedly connected to the outer wall of the top of the support plate (1), one end of the spiral spring (23) is fixedly connected to the surface of the fixed column (22), and the other end of the spiral spring (23) is fixedly connected to the inner wall of the splicing seat (24).

8. A foundation pit support device for building construction according to claim 2, characterized in that: The splicing seat (24) is rotatably connected to the surface of the fixed column (22). The surface of the splicing seat (24) is provided with two sets of through internal thread grooves. The positioning screw (8) is threadedly connected to the inner wall of the internal thread groove of the splicing seat (24).

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