Foundation pit supporting device for building engineering construction

Abstract

The foundation pit supporting device comprises a connecting base, the left side of the connecting base is provided with a first groove, the top and the bottom of the first groove are open, the right side of the connecting base is provided with a second groove, and the top and the bottom of the second groove are open. A rotating sleeve is rotationally installed between the inner walls of the front side and the rear side of the first groove, and the top of the rotating sleeve is fixedly connected with a box-shaped supporting plate with the left side and the top being open. By arranging a series of structures, the supporting and shielding height can be flexibly adjusted according to the height of the side wall of the foundation pit, the bottom plate can be rotated and adjusted to be horizontal during use, and the supporting inclination of the box-shaped supporting plate can be integrally, rapidly and flexibly adjusted according to the inclination of the side wall of the foundation pit, so that the box-shaped supporting plate can stably fit and support, and the applicability is improved; and the bottom plate and the box-shaped supporting plate can be conveniently rotated and folded during transportation after use, so that the occupied space is reduced, the convenience during transportation is improved, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering construction, in particular to a foundation pit supporting device for building engineering construction. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design position 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 on site, and waterproofing and drainage work should be done well. Foundation pit support devices are widely used in construction projects, and foundation pit support is a support, reinforcement and protection measure for the side walls of the foundation pit and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit.

[0003] After investigation, publication number CN219951977U discloses a foundation pit support device for construction engineering, including a base plate, a lower baffle plate is provided on one side above the base plate, a plurality of equidistantly arranged positioning grooves are opened on the upper end of the lower baffle plate, a support rod is inserted in the middle of the positioning groove, the upper end of the support rod is fixedly connected to the upper baffle plate, and four matrix-arranged positioning components are provided on the base plate, a first U-shaped seat is provided at both ends of the upper side of the base plate away from the lower baffle plate, the first U-shaped seat is movably connected to the connecting rod, the upper end of the connecting rod is movably connected to the sleeve, a threaded rod is inserted at the upper end of the sleeve, and the end of the threaded rod away from the sleeve is movably connected to the upper baffle plate through the second U-shaped seat; this support device has a simple structure, high overall strength, good support and protection effect on the foundation pit, reduces the probability of loosening and collapse of the foundation pit wall, is easy to store, and effectively improves the convenience of using the support device.

[0004] The above technology discloses a foundation pit support device for construction engineering. Through the arranged rotating disk, sleeve, threaded rod and other structures, the height of the upper baffle can be flexibly adjusted up and down according to the height of the foundation pit side wall, so as to adjust the height of the foundation pit side wall support. However, there are the following shortcomings when it is used: 1. Since the baffle is perpendicular to the bottom plate, it is difficult to stably fit and support when the foundation pit side wall is inclined, and its applicability is relatively limited; 2. The bottom plate and the baffle cannot be folded during transportation after use, and a large space is occupied when not in use, which affects the convenience of transportation (and the traditional method of disassembly and assembly using bolts is prone to the loss of bolts and other connecting parts due to disassembly, which is inconvenient to use); in view of this, the present application proposes a foundation pit support device for construction engineering. Utility Model Content

[0005] The purpose of the utility model is to provide a foundation pit supporting device for construction engineering to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a foundation pit support device for construction engineering, comprising a connecting seat, a first groove with both the top and the bottom being opened is opened on the left side of the connecting seat, a second groove with both the top and the bottom being opened is opened on the right side of the connecting seat, a rotating sleeve is rotatably installed between the front and rear inner walls of the first groove, a box-shaped support plate with both the left and the top being opened is fixedly connected to the top of the rotating sleeve, and a bottom plate with the left side being a concave structure is rotatably installed between the front and rear inner walls of the second groove;

[0007] A threaded vertical guide expansion component is fixedly installed on the bottom inner wall of the box-shaped support plate, and the threaded vertical guide expansion component is used to expand and adjust the support shielding height when the side of the foundation pit is higher;

[0008] A threaded lifting assembly is installed on the right side of the box-shaped support plate, and two inclined connecting rods are rotatably installed on the threaded lifting assembly. The bottom ends of the two connecting rods are hinged to the left side of the bottom plate. The threaded lifting assembly is used to drive the two connecting rods to rotate upward and downward, and the bottom plate is driven to rotate to the horizontal by the two connecting rods rotating downward, and the box-shaped support plate is driven to tilt and adjust when the bottom plate continues to rotate after it is horizontal. In addition, when not in use, the two connecting rods rotate upward to pull the bottom plate to rotate upward and fold, so as to achieve the goal of not separately disassembling and reducing the space for transportation when not in use;

[0009] An anchoring assembly is installed on the bottom plate, and the anchoring assembly is used to anchor the bottom plate to the bottom of the foundation pit when the bottom plate is horizontal.

[0010] Preferably, the threaded vertical guide expansion assembly includes a rectangular plate fixedly connected to the inner wall of the bottom of the box-shaped support plate, and a box-shaped expansion plate with an opening at the bottom is slidably sleeved on the rectangular plate. A first T-shaped screw is rotatably installed on the top of the box-shaped expansion plate, and the rectangular plate is threadedly sleeved on the first T-shaped screw.

[0011] Preferably, the threaded lifting assembly includes a revolving rod fixedly connected to the right side of the box-shaped support plate, a second T-shaped screw is rotatably installed between the top inner wall and the bottom inner wall of the revolving rod, the top end of the second T-shaped screw extends to the top of the revolving rod, and a lifting seat is threadedly sleeved on the second T-shaped screw and slidably installed with the right side of the box-shaped support plate, and two connecting rods are rotatably installed on the front and rear sides of the lifting seat respectively.

[0012] Preferably, the anchoring assembly includes four T-shaped anchor rods arranged in a rectangular shape, the circular rod is located between the four T-shaped anchor rods, the left top and left bottom of the base plate are both provided with a third groove with openings on the front and rear sides, and two threaded through holes are provided on the right inner wall of the third groove, and the T-shaped anchor rod is threadedly sleeved in the corresponding threaded through holes.

[0013] Preferably, a first support shaft is fixedly connected between the front and rear inner walls of the first groove, two first bearings are fixedly sleeved in the rotating sleeve, and the inner rings of the first bearings are fixedly sleeved with the outer sides of the first support shaft.

[0014] Preferably, a thread groove threadably connected to the first T-shaped screw is formed on the top of the rectangular plate.

[0015] Preferably, a rectangular groove is opened on the right side of the box-shaped support plate, a T-shaped guide rail is fixedly connected to the left inner wall of the rectangular groove, a T-shaped guide groove slidably connected to the T-shaped guide rail is opened on the left side of the lifting seat, and a threaded hole threadedly connected to the second T-shaped screw is opened on the top of the lifting seat.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. This foundation pit support device for construction engineering can flexibly adjust the support shielding height according to the height of the foundation pit side wall through the cooperation of the box-shaped support plate and the threaded vertical guide expansion component;

[0018] 2. This foundation pit support device for construction engineering projects, through the cooperation of the box-shaped support plate, threaded lifting assembly, connecting rod, base plate, connecting seat and anchor assembly, can rotate the base plate to be adjusted to the horizontal during use and use the anchor assembly for anchor support. After the base plate is rotated to the horizontal, the support slope of the box-shaped support plate can be quickly and flexibly adjusted according to the slope of the foundation pit side wall, so that it can perform stable and fitting support work, thereby being suitable for stable support of foundation pit side walls with different slopes, improving applicability, and the base plate and the box-shaped support plate can be rotated and folded during transportation after use, reducing the space they occupy and improving convenience during transportation, and there is no need to disassemble them, so there will be no loss of disassembled parts, etc., which is convenient to use.

[0019] The utility model is provided with a series of structures, which makes it convenient to flexibly adjust the support shielding height according to the height of the foundation pit side wall, and conveniently rotate the bottom plate to adjust it to the horizontal when in use, and quickly and flexibly adjust the support inclination of the box-shaped support plate according to the inclination of the foundation pit side wall, so that it can perform stable and fitting support work, improve applicability, and make it convenient to rotate and fold the bottom plate and the box-shaped support plate when transporting after use, thereby reducing the space they occupy, improving convenience during transportation, and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural schematic diagram of a foundation pit support device for construction engineering proposed by the utility model;

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the midsole plate when it is not installed;

[0022] Figure 3This is a schematic diagram of the main cross-sectional structure of a foundation pit support device for construction engineering proposed by the utility model;

[0023] Figure 4 for Figure 3 Schematic diagram of the structure with the base plate horizontal and the box-shaped support plate inclined.

[0024] In the figure: 1. connecting seat; 2. first groove; 3. second groove; 4. rotating sleeve; 5. box-shaped support plate; 6. rectangular plate; 7. box-shaped expansion plate; 8. first T-shaped screw; 9. bottom plate; 10. third groove; 11. T-shaped anchor rod; 12. circular rod; 13. second T-shaped screw; 14. lifting seat; 15. T-shaped guide rail; 16. connecting rod. DETAILED DESCRIPTION

[0025] 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.

[0026] like Figures 1 to 4 As shown, a foundation pit support device for construction engineering proposed in this embodiment includes a connecting seat 1, a first groove 2 with both the top and the bottom being opened is opened on the left side of the connecting seat 1, a second groove 3 with both the top and the bottom being opened is opened on the right side of the connecting seat 1, a rotating sleeve 4 is rotatably installed between the front and rear inner walls of the first groove 2, wherein a first supporting shaft is fixedly connected between the front and rear inner walls of the first groove 2, two first bearings are fixedly sleeved in the rotating sleeve 4, the inner ring of the first bearing is fixedly sleeved with the outer side of the first supporting shaft, which plays the effect of rotatably installing the rotating sleeve 4, a box-shaped supporting plate 5 with both the left side and the top being opened is fixedly connected to the top of the rotating sleeve 4, a bottom plate 9 with a concave structure on the left side is rotatably installed between the front and rear inner walls of the second groove 3, wherein a second supporting shaft is fixedly connected between the front and rear inner walls of the second groove 3, the bottom of the bottom plate 9 is set as an arc structure, a first circular hole is opened at the front bottom of the bottom plate 9, two second bearings are fixedly sleeved in the first circular hole, the inner ring of the second bearing is fixedly sleeved with the outer side of the second supporting shaft, which plays the effect of rotatably installing the bottom plate 9;

[0027] A threaded vertical guide expansion component is fixedly installed on the bottom inner wall of the box-shaped support plate 5, and the threaded vertical guide expansion component is used to expand and adjust the support and shielding height when the side of the foundation pit is higher; a threaded lifting component is installed on the right side of the box-shaped support plate 5, and two inclined connecting rods 16 are rotatably installed on the threaded lifting component, and the bottom ends of the two connecting rods 16 are hinged to the left side of the bottom plate 9, and the threaded lifting component is used to drive the two connecting rods 16 to rotate up and down, and the two connecting rods 16 are used to rotate downward to drive the bottom plate 9 to rotate to horizontal, and drive the box-shaped support plate 5 to tilt and adjust when the bottom plate 9 continues to rotate after it is horizontal. In addition, when not in use, the two connecting rods 16 rotate upward to pull the bottom plate 9 to rotate and fold upward, so as to reduce the space for transportation when not in use without separate disassembly; an anchoring component is installed on the bottom plate 9, and the anchoring component is used to anchor the bottom plate 9 to the bottom of the foundation pit when it is horizontal.

[0028] Specifically, the threaded vertical guide expansion component includes a rectangular plate 6 fixedly connected to the inner wall of the bottom of the box-shaped support plate 5, a box-shaped expansion plate 7 with an opening at the bottom is slidably sleeved on the rectangular plate 6, a first T-shaped screw 8 is rotatably installed on the top of the box-shaped expansion plate 7, wherein a second circular hole is opened on the top of the box-shaped expansion plate 7, a third bearing is fixedly sleeved in the second circular hole, the inner side of the inner ring of the third bearing is fixedly connected to the outer side of the first T-shaped screw 8, which plays the effect of rotatably installing the first T-shaped screw 8, and the rectangular plate 6 is threadedly sleeved on the first T-shaped screw 8. A threaded groove is provided on the top of the middle rectangular plate 6, which is threadedly connected to the first T-shaped screw 8. The threaded connection between the first T-shaped screw 8 and the threaded groove facilitates the up and down displacement of the first T-shaped screw 8 when it rotates. The rectangular plate 6, the box-shaped expansion plate 7 and the first T-shaped screw 8 cooperate with each other. The first T-shaped screw 8 is rotated to rotate and move up and down in the rectangular plate 6. The first T-shaped screw 8 that moves up and down is used to drive the box-shaped expansion plate 7 to move up and down, thereby flexibly adjusting the support and shielding height according to the height of the side wall of the foundation pit.

[0029] Furthermore, the threaded lifting assembly includes a circular rod 12 fixedly connected to the right side of the box-shaped support plate 5, and a second T-shaped screw 13 is rotatably installed between the top inner wall and the bottom inner wall of the circular rod 12, wherein a third circular hole is opened on the top inner wall of the circular rod 12, and a fourth bearing is fixedly connected in the third circular hole and on the bottom inner wall of the circular rod 12, and the inner side of the inner ring of the fourth bearing is fixedly connected to the outer side of the second T-shaped screw 13, so as to achieve the effect of rotatably installing the second T-shaped screw 13, and the top end of the second T-shaped screw 13 extends to the top of the circular rod 12, and a lifting seat 14 is threadedly sleeved on the second T-shaped screw 13 and slidably installed with the right side of the box-shaped support plate 5, wherein a rectangular groove is opened on the right side of the box-shaped support plate 5, and a T-shaped guide rail 15 is fixedly connected on the left inner wall of the rectangular groove, and a T-shaped guide groove slidably connected to the T-shaped guide rail 15 is opened on the left side of the lifting seat 14, so as to achieve the vertical sliding of the lifting seat 14 The top of the lifting seat 14 is provided with a threaded hole threadedly connected to the second T-shaped screw 13, and the threaded connection relationship between the second T-shaped screw 13 and the threaded hole is utilized to facilitate the lifting seat 14 to move up and down when the second T-shaped screw 13 rotates. The two connecting rods 16 are rotatably mounted on the front and rear sides of the lifting seat 14, wherein the front and rear sides of the lifting seat 14 are fixedly connected with a pin shaft, and the top of the connecting rod 16 is fixedly connected with a round sleeve, and a fifth bearing is fixedly sleeved in the round sleeve. The inner ring of the fifth bearing is fixedly sleeved with the outer side of the corresponding pin shaft, which plays the effect of rotatably mounting the top of the connecting rod 16; the set circular rod 12, the second T-shaped screw 13 and the lifting seat 14 cooperate, and the lifting seat 14 is driven to slide downward or upward on the right side of the box-shaped support plate 5 by rotating the second T-shaped screw 13, and the two connecting rods 16 are driven to rotate synchronously downward and upward by the downward and upward movement of the lifting seat 14.

[0030] Furthermore, the anchoring assembly includes four T-shaped anchor rods 11 arranged in a rectangular shape, and the circular rod 12 is located between the four T-shaped anchor rods 11. The left top and left bottom of the base plate 9 are both provided with a third groove 10 with openings on the front and rear sides. Two threaded through holes are provided on the right inner wall of the third groove 10, and the T-shaped anchor rod 11 is threadedly sleeved in the corresponding threaded through holes; the arranged T-shaped anchor rod 11 cooperates with the threaded through holes, and when the base plate 9 is rotated to a horizontal position and contacts the bottom of the foundation pit, the T-shaped anchor rod 11 is rotated forward to drill into the bottom of the foundation pit, thereby realizing the anchoring of the base plate 9.

[0031] The method of using this embodiment is as follows: after placing the device in the foundation pit of the construction project, when the support height needs to be adjusted according to the height of the side wall of the foundation pit, the first T-shaped screw 8 is rotated in the threaded groove on the rectangular plate 6 to rotate and move upward. At this time, the first T-shaped screw 8 drives the box-shaped expansion plate 7 to slide upward on the rectangular plate 6. As the box-shaped expansion plate 7 moves upward, the total shielding support height formed by it and the box-shaped support plate 5 changes, thereby achieving the effect of flexibly adjusting the support shielding height according to the height of the side wall of the foundation pit;

[0032] The second T-shaped screw 13 is rotated forward to drive the lifting seat 14 to slide downward on the T-shaped guide rail 15, and the lifting seat 14 drives the two connecting rods 16 to rotate downward. The two connecting rods 16 squeeze and drive the bottom plate 9 to gradually rotate rightward to horizontal. After the bottom plate 9 rotates to horizontal, the personnel rotate the four T-shaped anchor rods 11 forward to drill into the bottom of the foundation pit to achieve anchoring of the bottom plate 9. At this time, the bottom plate 9 supports the box-shaped support plate 5 through the two connecting rods 16, the lifting seat 14 and the T-shaped guide rail 15 in turn, and the supported box-shaped support plate 5 and the box-shaped expansion plate 7 are used to shield and support the side wall of the foundation pit;

[0033] When the side wall of the foundation pit is tilted and the supporting inclination of the box-shaped support plate 5 needs to be adjusted, the second T-shaped screw 13 is continuously rotated forward to drive the lifting seat 14 to continue to move downward, and the lifting seat 14 drives the two connecting rods 16 to continue to rotate downward. Since the bottom plate 9 is already in contact with the bottom of the foundation pit and is blocked and restricted by it, the top of the connecting rod 16 is rotated downward to drive the lifting seat 14 to rotate and tilt to the left, and the lifting seat 14 drives the box-shaped support plate 5 to rotate and tilt to the left, and the box-shaped support plate 5 drives the box-shaped expansion plate 7 and the return rod 12 to rotate and tilt to the left. After the inclination is adjusted appropriately, the second T-shaped screw 13 can be stopped from rotating, so that the supporting inclination can be flexibly adjusted according to the inclination requirements of the side wall of the foundation pit, so that it can perform stable and fitting support work, thereby improving applicability;

[0034] When it needs to be transported after use, the T-shaped anchor rod 11 is rotated in the opposite direction to disengage it from the bottom of the foundation pit, and then the second T-shaped screw rod 13 is rotated in the opposite direction. Similarly, the movement direction of the second T-shaped screw rod 13 is completely opposite to the above-mentioned forward rotation. At this time, the two connecting rods 16 are transformed into upward rotation, and the two connecting rods 16 rotating upward pull the bottom plate 9 to rotate upward and fold to the right side of the box-shaped support plate 5, so that the bottom plate 9 and the box-shaped support plate 5 can be rotated and folded during transportation after use, thereby reducing the space occupied and improving the convenience during transportation. There is no need to disassemble, so there will be no loss of disassembled parts, etc., which is convenient to use.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A foundation pit support device for construction engineering, comprising a connecting seat (1), characterized in that: The left side of the connecting seat (1) is provided with a first groove (2) with both the top and the bottom being open, the right side of the connecting seat (1) is provided with a second groove (3) with both the top and the bottom being open, a rotating sleeve (4) is rotatably mounted between the front and rear inner walls of the first groove (2), a box-shaped support plate (5) with both the left and the top being open is fixedly connected to the top of the rotating sleeve (4), and a bottom plate (9) with a concave structure on the left side is rotatably mounted between the front and rear inner walls of the second groove (3); A threaded vertical guide expansion component is fixedly mounted on the inner wall of the bottom of the box-shaped support plate (5); A threaded lifting assembly is installed on the right side of the box-shaped support plate (5), and two inclined connecting rods (16) are rotatably installed on the threaded lifting assembly, and the bottom ends of the two connecting rods (16) are hinged to the left side of the bottom plate (9); An anchoring assembly is installed on the base plate (9).

2. A foundation pit support device for construction engineering according to claim 1, characterized in that: The threaded vertical guide expansion assembly comprises a rectangular plate (6) fixedly connected to the inner wall of the bottom of the box-shaped support plate (5), a box-shaped expansion plate (7) with an opening at the bottom is slidably sleeved on the rectangular plate (6), a first T-shaped screw (8) is rotatably mounted on the top of the box-shaped expansion plate (7), and the rectangular plate (6) is threadedly sleeved on the first T-shaped screw (8).

3. A foundation pit support device for construction engineering according to claim 2, characterized in that: The threaded lifting assembly comprises a reciprocating rod (12) fixedly connected to the right side of the box-shaped support plate (5); a second T-shaped screw rod (13) is rotatably mounted between the top inner wall and the bottom inner wall of the reciprocating rod (12); the top end of the second T-shaped screw rod (13) extends above the reciprocating rod (12); a lifting seat (14) slidably mounted on the right side of the box-shaped support plate (5) is threadedly sleeved on the second T-shaped screw rod (13); and two connecting rods (16) are rotatably mounted on the front and rear sides of the lifting seat (14), respectively.

4. A foundation pit support device for construction engineering according to claim 3, characterized in that: The anchor assembly comprises four T-shaped anchor rods (11) arranged in a rectangular shape, the circular rod (12) is located between the four T-shaped anchor rods (11), the left top and left bottom of the bottom plate (9) are both provided with a third groove (10) with front and rear sides being open, two threaded through holes are provided on the right inner wall of the third groove (10), and the T-shaped anchor rods (11) are threadedly sleeved in the corresponding threaded through holes.

5. The foundation pit support device for construction engineering according to claim 1, characterized in that: A first support shaft is fixedly connected between the front and rear inner walls of the first groove (2); two first bearings are provided in the fixed sleeve inside the rotating sleeve (4); the inner rings of the first bearings are fixedly sleeved with the outer side of the first support shaft.

6. The foundation pit support device for construction engineering according to claim 2, characterized in that: The top of the rectangular plate (6) is provided with a thread groove which is threadably connected to the first T-shaped screw rod (8).

7. The foundation pit support device for construction engineering according to claim 3, characterized in that: A rectangular groove is provided on the right side of the box-shaped support plate (5), a T-shaped guide rail (15) is fixedly connected to the left inner wall of the rectangular groove, a T-shaped guide groove slidably connected to the T-shaped guide rail (15) is provided on the left side of the lifting seat (14), and a threaded hole threadedly connected to the second T-shaped screw rod (13) is provided on the top of the lifting seat (14).

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