Multi-layer foundation pit supporting frame

Abstract

The utility model relates to the technical field of foundation pit supporting frames, in particular to a multi-layer foundation pit supporting frame which comprises a plurality of supporting rods and a plurality of transverse rods, the transverse rods are installed between every two adjacent supporting rods through connecting fasteners, the lower end of each supporting rod is provided with a threaded groove, and the threaded grooves are communicated with the supporting rods. The lower end of each supporting rod is in threaded connection with a bottom plate; the outer side of the lower end of each bottom plate is rotationally connected with a plurality of display plates, the side wall of the outer end of each bottom plate is in threaded connection with a hand-screwing bolt, and when the display plates are unfolded, the lower ends of the hand-screwing bolts make contact with the upper ends of the display plates; when a flat bottom is placed on the ground, the display plate is rotated out of the lower end of the bottom plate and is fixed by rotating the hand-screwing bolt, the contact area between the bottom plate and the ground is increased, the bottom plate is stably supported, when the supporting frame is placed on a mud ground, the inserting rod penetrates through the positioning hole and goes deep into the ground to fix the bottom plate, and the supporting frame is firmly fixed. Therefore, the stability of the multi-layer foundation pit supporting frame is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support frames, in particular to a multi-layer foundation pit support frame. Background Art

[0002] A foundation pit refers to a project with an excavation depth of more than 5 meters, or a project with a depth of less than 5 meters but with particularly complex geological conditions, surrounding environment and underground pipelines. The multi-layer foundation pit support frame is a device used to support deep foundation pits.

[0003] The bottom position of the existing multi-layer foundation pit support frame usually does not have a stable structure that can be adjusted according to different environments. It is easy to deflect due to incompatibility with the environment, resulting in the failure of the stable support effect. To this end, the utility model proposes a multi-layer foundation pit support frame to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-layer foundation pit support frame to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer foundation pit support frame, comprising: a support rod and a cross rod, wherein a plurality of support rods and a plurality of cross rods are provided, and a cross rod is installed between two adjacent support rods through a connecting fastener, and a threaded groove is provided at the lower end of each support rod, and a bottom plate is threadedly connected to the lower end of each support rod;

[0006] The outer side of the lower end of each base plate is rotatably connected with a plurality of display boards, and the outer side wall of each base plate is threadedly connected with a hand bolt. When the display board is unfolded, the lower end of the hand bolt contacts the upper end of the display board.

[0007] Preferably, a threaded hole is provided at the center of the upper end of the base plate, and a threaded connection is performed through the threaded hole and the threaded groove at the lower end of the support rod.

[0008] Preferably, the outer end of each of the display panels is larger than the inner end, and the inner end of the display panel is rotatably connected to the lower end of the fixed plate via a rotating shaft.

[0009] Preferably, a limiting hole is provided in the middle portion of each display board, and a positioning hole is provided at the outer end.

[0010] Preferably, a plurality of fixing plates are evenly fixedly mounted on the outer wall of the bottom plate, a threaded sleeve is fixedly mounted on the side wall of each fixing plate, and the outer wall of the hand-tightened bolt and the inner wall of the threaded sleeve are threadedly connected.

[0011] Preferably, a plurality of slide grooves are evenly opened on the outer side of the bottom end of the base plate, a hemisphere is slidably connected in each slide groove, a spring is fixedly installed on the upper end of the hemisphere, the upper end of the spring and the inner end of the slide groove are fixedly connected, and when the spring is in a balanced state, the lower end of the hemisphere is located on the outer side of the slide groove.

[0012] Preferably, when the display board is located at the lower end of the bottom plate, the hemisphere is located in the positioning hole, and when the display board is unfolded, the insertion rod can be inserted into the positioning hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the terrain is flat, the display board is rotated out of the lower end of the base plate and fixed by turning the hand-tightened bolts to increase the contact area between the base plate and the ground and support it stably. When placed on muddy ground, the support frame is firmly fixed by inserting the rod through the positioning hole and fixing the base plate deep underground, thereby effectively improving the stability of the multi-layer foundation pit support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a front schematic diagram of the bottom plate of the utility model;

[0017] Figure 3 This is a bottom view of the bottom plate of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection between the ball and the spring of the utility model.

[0019] In the figure: 1. Support rod; 2. Cross bar; 3. Connecting fastener; 4. Threaded groove; 5. Base plate; 6. Threaded hole; 7. Fixing plate; 8. Threaded sleeve; 9. Thumb bolt; 10. Display board; 11. Limit hole; 12. Positioning hole; 13. Insert rod; 14. Slide groove; 15. Hemisphere; 16. Spring. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a multi-layer foundation pit support frame, including: a support rod 1 and a cross rod 2, each of the support rods 1 and the cross rod 2 is provided with a plurality of roots, the cross rod 2 is installed between two adjacent support rods 1 through a connecting fastener 3, a threaded groove 4 is provided at the lower end of each support rod 1, and a bottom plate 5 is threadedly connected to the lower end of each support rod 1, and a threaded hole 6 is provided at the center of the upper end of the bottom plate 5, which is threadedly connected to the threaded groove 4 at the lower end of the support rod 1 through the threaded hole 6, so as to facilitate the disassembly and assembly of the bottom plate 5.

[0025] A plurality of display panels 10 are rotatably connected to the outer side of the lower end of each base plate 5. The outer end of each display panel 10 is larger than the inner end. The inner end of the display panel 10 is rotatably connected to the lower end of the fixed plate 7 through a rotating shaft. The display panel 10 can rotate at the lower end of the base plate 5 with the rotating shaft as the center. A limiting hole 11 is provided in the middle portion of each display panel 10, and a positioning hole 12 is provided at the outer end.

[0026] A hand-tightening bolt 9 is threadedly connected to the side wall of the outer end of each base plate 5, and a plurality of fixing plates 7 are evenly fixedly installed on the outer wall of the base plate 5. A threaded sleeve 8 is fixedly installed on the side wall of each fixing plate 7. The outer wall of the hand-tightening bolt 9 and the inner wall of the threaded sleeve 8 are threadedly connected. When the display board 10 is unfolded, the lower end of the hand-tightening bolt 9 is inserted into the limiting hole 11, thereby fixing the display board 10 and increasing the contact area between the base plate 5 and the top surface.

[0027] A plurality of slide grooves 14 are evenly provided on the outer side of the bottom end of the base plate 5, and a hemisphere 15 is slidably connected in each slide groove 14. A spring 16 is fixedly installed on the upper end of the hemisphere 15, and the upper end of the spring 16 is fixedly connected to the inner end of the slide groove 14. When the spring 16 is in a balanced state, the lower end of the hemisphere 15 is located on the outer side of the slide groove 14. When the display board 10 is located at the lower end of the base plate 5, the hemisphere 15 is located in the positioning hole 12, and the display board 10 is fixed to the lower end of the base plate 5. When the display board 10 is unfolded, the insertion rod 13 can be inserted into the positioning hole 12, and the insertion rod 13 penetrates into the ground to fix the base plate 5, thereby firmly fixing the support frame.

[0028] When the device is working, when the terrain is flat, the display board 10 is rotated out of the lower end of the base plate 5 and fixed by turning the hand-tightening bolts 9 to increase the contact area between the base plate 5 and the ground to support it stably. When placed on muddy ground, the base plate 5 is fixed by inserting the rod 13 through the positioning hole 12 and deep into the ground to fix the base plate 5, so that the support frame is firmly fixed, thereby effectively improving the stability of the multi-layer foundation pit support frame.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer foundation pit support frame, comprising: A plurality of support rods (1) and cross rods (2) are provided, and the cross rod (2) is installed between two adjacent support rods (1) through a connecting fastener (3), characterized in that a thread groove (4) is provided at the lower end of each support rod (1), and a bottom plate (5) is threadedly connected to the lower end of each support rod (1); A plurality of display panels (10) are rotatably connected to the outer side of the lower end of each base plate (5), and a hand-tightening bolt (9) is threadedly connected to the outer side wall of each base plate (5). When the display panels (10) are unfolded, the lower end of the hand-tightening bolt (9) contacts the upper end of the display panel (10).

2. A multi-layer foundation pit support frame according to claim 1, characterized in that: A threaded hole (6) is provided at the center of the upper end of the bottom plate (5), and a threaded connection is achieved through the threaded hole (6) and the threaded groove (4) at the lower end of the support rod (1).

3. A multi-layer foundation pit support frame according to claim 1, characterized in that: The outer end of each display board (10) is larger than the inner end, and the inner end of the display board (10) is rotatably connected to the lower end of the fixed plate (7) via a rotating shaft.

4. The multi-layer foundation pit support frame according to claim 1, characterized in that: A limiting hole (11) is provided in the middle of each display board (10), and a positioning hole (12) is provided at the outer end.

5. The multi-layer foundation pit support frame according to claim 1, characterized in that: A plurality of fixing plates (7) are evenly fixedly mounted on the outer wall of the bottom plate (5), a threaded sleeve (8) is fixedly mounted on the side wall of each fixing plate (7), and the outer wall of the hand-tightening bolt (9) and the inner wall of the threaded sleeve (8) are threadedly connected.

6. The multi-layer foundation pit support frame according to claim 1, characterized in that: A plurality of slide grooves (14) are evenly arranged on the outer side of the bottom end of the bottom plate (5), and a hemisphere (15) is slidably connected in each slide groove (14). A spring (16) is fixedly installed on the upper end of the hemisphere (15), and the upper end of the spring (16) is fixedly connected to the inner end of the slide groove (14). When the spring (16) is in a balanced state, the lower end of the hemisphere (15) is located on the outer side of the slide groove (14).

7. The multi-layer foundation pit support frame according to claim 1, characterized in that: When the display board (10) is located at the lower end of the bottom plate (5), the hemisphere (15) is located in the positioning hole (12); when the display board (10) is unfolded, the insertion rod (13) can be inserted into the positioning hole (12).

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