Civil engineering assembly type foundation pit supporting device

Abstract

The utility model relates to a civil engineering assembly type foundation pit supporting device which comprises a base, a machine box is fixed on the upper surface of the base, a hydraulic cylinder is fixed on the inner bottom wall of the machine box, a connecting rod is fixed on an output shaft of the hydraulic cylinder, and a connecting block is in threaded connection with the outer side of the top end of the connecting rod. A mounting plate is fixed to the upper surface of the connecting block, a supporting mechanism is arranged in the mounting plate and used for supporting the side wall and the periphery of the foundation pit, a supporting plate is arranged on the right side of the mounting plate, and an extension mechanism is arranged in the supporting plate and used for adjusting the supporting range. According to the assembly type foundation pit supporting device for the civil engineering, through cooperation of a first rotating handle, a first threaded rod can be driven to rotate, so that a first threaded block is driven to move, through movement of the first threaded block, a mounting block can be driven to move, so that a supporting rod drives an adjusting rotating plate to rotate, and through cooperation of an adjusting assembly, the position of a supporting plate can be adjusted; therefore, the supporting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to an assembled foundation pit support device for civil engineering. Background Art

[0002] Support is a measure of support, reinforcement and protection for the side walls and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. As a structural system, the foundation pit support should meet the requirements of stability and deformation, that is, the requirements of the two limit states mentioned in the usual specifications, namely the bearing capacity limit state and the normal use limit state.

[0003] For example, a prefabricated foundation pit support device for civil engineering is disclosed in China Utility Model Patent Publication No. (CN217580193U), which comprises an installation base plate, a steel bar insertion hole is formed through the installation base plate surface, a limited fence frame is fixedly installed on one side of the top surface of the installation base plate, a foundation pit retaining isolation plate body is movably inserted inside the limited fence frame, rivets are provided on the plate surface of the foundation pit retaining isolation plate body, a supporting lining plate is riveted to the foundation pit retaining isolation plate body through rivets, a supporting longitudinal strip is fixedly installed on the middle part of the support lining plate surface, an assembling longitudinal tube is fixedly installed on the side end of the supporting longitudinal strip, a supporting end cover is fixedly installed on the top end of the assembling longitudinal tube, an assembling longitudinal support shaft is slidably inserted inside the supporting longitudinal strip, and the bottom end of the assembling longitudinal support shaft is fixedly An overlapping cover plate is installed, and a threaded shaft body is fixedly installed in the middle of the bottom surface of the overlapping cover plate. An internal threaded ring tube is threadedly sleeved on the surface of the threaded shaft body, and a positioning ring bucket is fixedly installed on the top of the internal threaded ring tube. The bottom end of the internal threaded ring tube is fixedly installed with the installation base plate. At present, after the foundation pit of the civil engineering project is excavated, the foundation pit support isolation device installed is basically to support the iron plate by tying the bracket with steel bars. The efficiency is low during installation, there is a lack of support devices that can be quickly assembled, and it is difficult to disassemble for reuse. However, although the patent can quickly disassemble and assemble the support fence, it is impossible to support and reinforce the side walls inside the foundation pit, which makes the foundation pit vulnerable to damage by rain or other external factors, causing the foundation pit to deform and affecting practicality. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an assembled foundation pit support device for civil engineering projects, which has the advantage of supporting both the inside and the outside of the foundation pit. It solves the problem that although the supporting fence can be quickly disassembled and assembled in the patent, the side walls inside the foundation pit cannot be supported and reinforced, which makes the foundation pit easily damaged by rain or other external factors, causing the foundation pit to deform and affecting practicality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembled foundation pit support device for civil engineering, comprising a base, a chassis is fixed on the upper surface of the base, a hydraulic cylinder is fixed on the inner bottom wall of the chassis, a connecting rod is fixed on the output shaft of the hydraulic cylinder, a connecting block is threadedly connected to the outer side of the top of the connecting rod, a mounting plate is fixed on the upper surface of the connecting block, a supporting mechanism is arranged inside the mounting plate for supporting the side wall and periphery of the foundation pit, a supporting plate is arranged on the right side of the mounting plate, and an extension mechanism is arranged inside the supporting plate for adjusting the support range;

[0006] The support mechanism includes a first handle rotatably connected to the upper surface of the mounting plate through a bearing, the other end of the first handle penetrates and extends to the interior of the mounting plate and is fixed with a first threaded rod, the other end of the first threaded rod is rotatably connected to the inner bottom wall of the mounting plate through a bearing, the outer side of the first threaded rod is threadedly connected to a first threaded block, a mounting block is fixed to the right side of the first threaded block, the right side of the mounting block penetrates and extends to the right side of the mounting plate, and is hinged to a support rod through a hinge shaft, the other end of the support rod is hinged to a rotating plate through the hinge shaft, two fixed blocks are fixed to the right side of the mounting plate, the front and rear sides of the rotating plate are respectively rotatably connected to the side surfaces opposite to the two fixed blocks through bearings, a limiting plate is fixed to the right side of the mounting plate, and an adjustment component is provided inside the rotating plate.

[0007] Furthermore, no less than two stabilizing rods are fixed to the lower surface of the base and are evenly distributed on the lower surface of the base.

[0008] Furthermore, the number of the mounting blocks and the limiting plates are both four, and they are symmetrically distributed around the central axis of the first threaded block and the mounting plate, respectively, and the positions of the mounting blocks correspond one to one with the positions of the limiting plates.

[0009] Furthermore, the adjustment assembly includes a second handle rotatably connected to the upper surface of the rotating plate through a bearing, the other end of the second handle penetrates and extends to the interior of the rotating plate and is fixed with a gear, the outer side of the gear is meshed with a rack, the front side of the rack is fixed with an assembly plate, the right side of the assembly plate penetrates and extends to the right side of the rotating plate, and is fixedly connected to the support plate by bolts.

[0010] Furthermore, a sliding rod is fixed between the left inner wall and the right inner wall of the rotating plate, and the outer side of the sliding rod is slidably connected to the inner side of the rack.

[0011] Furthermore, the extension mechanism includes a third handle rotatably connected to the front side of the support plate via a bearing, the other end of the third handle penetrates and extends to the interior of the support plate and is fixed with a second threaded rod, the other end of the second threaded rod is rotatably connected to the rear inner wall of the support plate via a bearing, the outer side of the second threaded rod is threadably connected to a second threaded block, and an extension plate is fixed to the upper surface of the second threaded block.

[0012] Furthermore, two threads in opposite directions are distributed on the outer side of the second threaded rod and are symmetrically distributed front to back about the central axis of the second threaded rod.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The assembled foundation pit support device for civil engineering projects can drive the first threaded rod to rotate through the cooperation of the first turning handle, thereby driving the first threaded block to move. The movement of the first threaded block can drive the mounting block to move, so that the support rod drives the adjusting rotating plate to rotate. The position of the support plate can be adjusted through the cooperation of the adjusting assembly, thereby improving the support effect.

[0015] 2. The assembled foundation pit support device for civil engineering projects can drive the second threaded rod to rotate through the cooperation of the third handle, thereby driving the second threaded block to move. The movement of the second threaded block can drive the extension plate to move, thereby extending the extension plate, so as to adjust the support range of the support plate according to the size of the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the support mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the adjustment component of the utility model;

[0019] Figure 4 It is a schematic diagram of the extension mechanism of the utility model.

[0020] In the figure: 1 base, 2 chassis, 3 hydraulic cylinder, 4 connecting rod, 5 connecting block, 6 mounting plate, 7 supporting mechanism, 701 first turning handle, 702 first threaded rod, 703 first threaded block, 704 mounting block, 705 supporting rod, 706 turning plate, 707 fixing block, 708 limiting plate, 709 second turning handle, 710 gear, 711 rack, 712 assembly plate, 8 supporting plate, 9 extension mechanism, 901 third turning handle, 902 second threaded rod, 903 second threaded block, 904 extension plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] See also Figure 1 In this embodiment, an assembled foundation pit supporting device for civil engineering projects includes a base 1, a chassis 2 is fixed on the upper surface of the base 1, a hydraulic cylinder 3 is fixed to the inner bottom wall of the chassis 2, a connecting rod 4 is fixed to the output shaft of the hydraulic cylinder 3, the output shaft of the hydraulic cylinder 3 drives the connecting rod 4 to move, and a connecting block 5 is threadedly connected to the outer side of the top of the connecting rod 4, so that the connecting block 5 and the connecting rod 4 are easy to assemble and disassemble, the connecting rod 4 drives the connecting block 5 to move, and a mounting plate 6 is fixed on the upper surface of the connecting block 5, and the connecting block 5 drives the mounting plate 6 to move, so as to adjust the support position to a suitable height, and a supporting mechanism 7 is arranged inside the mounting plate 6 for supporting the side wall and the periphery of the foundation pit, so as to facilitate the control equipment to support the foundation pit, and a supporting plate 8 is arranged on the right side of the mounting plate 6, and an extension mechanism 9 is arranged inside the supporting plate 8 for adjusting the support range to avoid gaps around the foundation pit.

[0023] Among them, no less than two stabilizing rods are fixed to the lower surface of the base 1 and are evenly distributed on the lower surface of the base 1, so that the base 1 is more stable.

[0024] See also Figure 2-3In order to facilitate the control of the equipment to support the foundation pit, the supporting mechanism 7 in this embodiment includes a first turning handle 701 rotatably connected to the upper surface of the mounting plate 6 through a bearing, the other end of the first turning handle 701 penetrates and extends to the inside of the mounting plate 6, and is fixed with a first threaded rod 702, the first turning handle 701 drives the first threaded rod 702 to rotate, the other end of the first threaded rod 702 is rotatably connected to the inner bottom wall of the mounting plate 6 through a bearing, the outer side of the first threaded rod 702 is threadedly connected with a first threaded block 703, the first threaded rod 702 drives the first threaded block 703 to move, a mounting block 704 is fixed to the right side of the first threaded block 703, and the first threaded block 703 drives the mounting block 704 to move The right side of the mounting block 704 passes through and extends to the right side of the mounting plate 6, and is hinged with a support rod 705 through a hinge shaft. The mounting block 704 drives the support rod 705 to move and rotate the angle of the support rod 705. The other end of the support rod 705 is hinged with a rotating plate 706 through a hinge shaft. Two fixed blocks 707 are fixed to the right side of the mounting plate 6. The front and rear sides of the rotating plate 706 are respectively connected to the opposite sides of the two fixed blocks 707 through bearings for rotation. A limiting plate 708 is fixed to the right side of the mounting plate 6. The support rod 705 drives the rotating plate 706 to rotate, so that the rotating plate 706 rotates to the position of the limiting plate 708, thereby opening the rotating plate 706. An adjusting component is provided inside the rotating plate 706.

[0025] In this example, there are four mounting blocks 704 and four limiting plates 708, which are symmetrically distributed about the central axis of the first threaded block 703 and the mounting plate 6. The positions of the mounting blocks 704 correspond one to one with the positions of the limiting plates 708. Slide openings are provided on the four outer sides of the mounting plate 6. The four mounting blocks 704 are respectively located inside the four slide openings, and the width of the slide openings matches the width of the mounting blocks 704.

[0026] The second end of the second handle 709 passes through and extends to the interior of the rotating plate 706, and is fixed with a gear 710. The second handle 709 drives the gear 710 to rotate. The outer side of the gear 710 is meshed with a rack 711. The gear 710 drives the rack 711 to move. An assembly plate 712 is fixed to the front of the rack 711. The right side of the assembly plate 712 passes through and extends to the right side of the rotating plate 706, and is fixedly connected to the support plate 8 by bolts. The movement of the rack 711 drives the assembly plate 712 to move, thereby driving the support plate 8 to move, so that the support plate 8 moves to fit the side wall of the foundation pit, thereby improving the support effect. A sliding rod is fixed between the left inner wall and the right inner wall of the rotating plate 706. The outer side of the sliding rod is slidably connected to the inner side of the rack 711. The sliding rod limits the moving trajectory of the rack 711 to prevent the rack 711 from offset.

[0027] See also Figure 4In order to make the base 1 more stable, the extension mechanism 9 in this embodiment includes a third handle 901 rotatably connected to the front side of the support plate 8 through a bearing, the other end of the third handle 901 penetrates and extends to the inside of the support plate 8, and is fixed with a second threaded rod 902, the third handle 901 drives the second threaded rod 902 to rotate, the other end of the second threaded rod 902 is rotatably connected to the rear inner wall of the support plate 8 through a bearing, the outer side of the second threaded rod 902 is threadedly connected with a second threaded block 903, the second threaded rod 902 drives the second threaded block 903 to move, and an extension plate 904 is fixed on the upper surface of the second threaded block 903, the second threaded block 903 drives the extension plate 904 to move, thereby extending the support plate 8 so as to fully support the side wall and periphery of the foundation pit.

[0028] In this example, two threads in opposite directions are distributed on the outer side of the second threaded rod 902 and are symmetrically distributed front to back about the central axis of the second threaded rod 902. There are two second threaded blocks 903 and they are symmetrically distributed front to back about the central axis of the second threaded rod 902.

[0029] The working principle of the above embodiment is:

[0030] (1) First, place the base 1 inside the foundation pit, insert the stabilizing rod into the soil on the bottom wall of the foundation pit so that the base 1 can remain stable, then assemble the connecting block 5 and the connecting rod 4 on the mounting plate 6, and then rotate the first turning handle 701, the first turning handle 701 drives the first threaded rod 702 to rotate, the first threaded rod 702 drives the first threaded block 703 to move, the first threaded block 703 drives the mounting block 704 to move, the mounting block 704 drives the support rod 705 to move and rotate the angle of the support rod 705, the support rod 705 drives the rotating plate 706 to rotate, and the rotating plate 706 rotates to the position of the limit plate 708, thereby opening the rotating plate 706, and then opening the hydraulic cylinder 3, the output shaft of the hydraulic cylinder 3 drives the connecting rod 4 to move, the connecting rod 4 drives the connecting block 5 to move, and the connecting block 5 drives the mounting plate 6 to move, thereby adjusting the support position to a suitable height.

[0031] (2) After the rotating plate 706 is opened to a horizontal state, the support plate 8 and the assembly plate 712 are assembled together by bolts, and then the second turning handle 709 is turned, and the second turning handle 709 drives the gear 710 to rotate, and the gear 710 drives the rack 711 to move, and the rack 711 moves to drive the assembly plate 712 to move, thereby driving the support plate 8 to move, so that the support plate 8 moves to fit the side wall of the foundation pit, thereby improving the support effect. After the support plate 8 fits the side wall of the foundation pit, the third turning handle 901 is turned, and the third turning handle 901 drives the second threaded rod 902 to rotate, and the second threaded rod 902 drives the second threaded block 903 to move, and the second threaded block 903 drives the extension plate 904 to move, thereby extending the support plate 8, so as to fully support the side wall and periphery of the foundation pit.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A prefabricated foundation pit support device for civil engineering, comprising a base (1), characterized in that: A chassis (2) is fixed on the upper surface of the base (1), a hydraulic cylinder (3) is fixed on the inner bottom wall of the chassis (2), a connecting rod (4) is fixed to the output shaft of the hydraulic cylinder (3), a connecting block (5) is threadedly connected to the outer side of the top end of the connecting rod (4), a mounting plate (6) is fixed on the upper surface of the connecting block (5), a supporting mechanism (7) is provided inside the mounting plate (6) for supporting the side wall and periphery of the foundation pit, a supporting plate (8) is provided on the right side of the mounting plate (6), and an extension mechanism (9) is provided inside the supporting plate (8) for adjusting the support range; The supporting mechanism (7) comprises a first turning handle (701) rotatably connected to the upper surface of the mounting plate (6) via a bearing, the bottom end of the first turning handle (701) penetrates and extends into the interior of the mounting plate (6) and is fixed with a first threaded rod (702), the bottom end of the first threaded rod (702) is rotatably connected to the inner bottom wall of the mounting plate (6) via a bearing, the outer side of the first threaded rod (702) is threadedly connected to a first threaded block (703), the right side of the first threaded block (703) is fixed with a mounting block (704), and the mounting block (704) is fixed to the first threaded block (703). The right side of the mounting block (704) passes through and extends to the right side of the mounting plate (6), and is hinged with a support rod (705) via a hinge shaft, and the other end of the support rod (705) is hinged with a rotating plate (706) via a hinge shaft, and two fixed blocks (707) are fixed to the right side of the mounting plate (6), and the front and rear sides of the rotating plate (706) are rotatably connected to the side surfaces opposite to the two fixed blocks (707) via bearings, and a limiting plate (708) is fixed to the right side of the mounting plate (6), and an adjustment component is provided inside the rotating plate (706).

2. The assembled foundation pit support device for civil engineering according to claim 1, characterized in that: No less than two stabilizing rods are fixed to the lower surface of the base (1) and are evenly distributed on the lower surface of the base (1).

3. The assembled foundation pit support device for civil engineering according to claim 1, characterized in that: The number of the mounting blocks (704) and the limiting plates (708) are both four, and they are symmetrically distributed about the central axis of the first threaded block (703) and the mounting plate (6), respectively, and the position of the mounting blocks (704) corresponds one-to-one to the position of the limiting plates (708).

4. The assembled foundation pit support device for civil engineering according to claim 1, characterized in that: The adjustment assembly comprises a second handle (709) rotatably connected to the upper surface of the rotating plate (706) via a bearing, the other end of the second handle (709) penetrates and extends to the interior of the rotating plate (706) and is fixed with a gear (710), the outer side of the gear (710) is meshed with a rack (711), the front side of the rack (711) is fixed with an assembly plate (712), the right side of the assembly plate (712) penetrates and extends to the right side of the rotating plate (706), and is fixedly connected to the support plate (8) via bolts.

5. The assembled foundation pit support device for civil engineering according to claim 4 is characterized in that: A sliding rod is fixed between the left inner wall and the right inner wall of the rotating plate (706), and the outer side of the sliding rod is slidably connected to the inner side of the rack (711).

6. The assembled foundation pit support device for civil engineering according to claim 1, characterized in that: The extension mechanism (9) comprises a third handlebar (901) rotatably connected to the front face of the support plate (8) via a bearing, the other end of the third handlebar (901) penetrates and extends into the interior of the support plate (8) and is fixed with a second threaded rod (902), the other end of the second threaded rod (902) is rotatably connected to the rear inner wall of the support plate (8) via a bearing, the outer side of the second threaded rod (902) is threadedly connected to a second threaded block (903), and an extension plate (904) is fixed to the upper surface of the second threaded block (903).

7. The assembled foundation pit support device for civil engineering according to claim 6, characterized in that: Two threads in opposite directions are distributed on the outer side of the second threaded rod (902) and are symmetrically distributed front to back about the central axis of the second threaded rod (902).

Images