Foundation pit safety supporting structure for house building construction

Abstract

The invention discloses a foundation pit safety supporting structure for house building construction, and relates to the technical field of foundation pit supporting structures, the foundation pit safety supporting structure comprises a house foundation pit, two supporting mechanisms are arranged on the house foundation pit, and the supporting mechanisms are used for protecting the foundation pit of a house building. According to the device, the supporting mechanisms are arranged, the multiple fixing columns are driven into the land for positioning, then the supporting mechanisms are placed between every two fixing columns, the multiple supporting mechanisms are connected in an end-to-end mode, through the arrangement of the driving unit, a rotating plate is attached to the interior of a foundation pit, then the multiple inserting rods are inserted into the soil, and through the arrangement of the butt joint unit, the foundation pit can be supported. The supporting mechanisms are in butt joint and are connected into a whole, the independent end-to-end connected supporting mechanisms are installed on the edge of the top of the foundation pit to protect the periphery of the foundation pit, the protection effect on the edge of the foundation pit is enhanced, and soil on the edge of the top of the house foundation pit cannot collapse.

Description

Technical Field

[0001] The invention relates to the technical field of foundation pit supporting structures, and in particular to a foundation pit safety supporting structure used in house construction. Background Art

[0002] At present, the foundation pit support structure 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. The foundation pit support structure plays an important role in housing construction projects. In the relevant technology, the commonly used foundation pit support structure for housing construction is pile and wall support structure.

[0003] The patent document with publication number CN113404058A discloses a foundation pit support structure for building construction, including a foundation pit main body, a bottom cushion layer arranged on the bottom surface of the foundation pit main body, a plurality of pre-buried connectors arranged on the bottom cushion layer along the circumferential direction, a plurality of groups of slope protection piles arranged on the side of the foundation pit main body along the circumferential direction, an inter-pile retaining wall arranged on the side of the foundation pit main body between two groups of adjacent slope protection piles, a prestressed anchor rod inserted in the foundation pit main body perpendicular to the inter-pile retaining wall, a diagonal brace connected to the pre-buried connector at one end, a diagonal brace connector sleeved on the slope protection pile, a crown beam arranged on the top of the slope protection pile and a slope protection anchor wall arranged on the side of the foundation pit main body above the crown beam; the two ends of the diagonal brace are detachably connected to the pre-buried connector and the diagonal brace connector respectively.

[0004] However, the above invention has the following shortcomings: most of the existing foundation pit safety support structures for house construction adopt a support method from the bottom of the foundation pit, and then install the support structure from the bottom of the foundation pit to the top of the foundation pit by splicing and installation. When protecting deeper foundation pits, the support center of gravity is low, resulting in unsatisfactory support effect on the top of the support structure, making the top edge of the foundation pit prone to collapse. Summary of the invention

[0005] The object of the present invention is to provide a foundation pit safety support structure for housing construction to solve the problems raised in the above-mentioned background technology.

[0006] The technical solution of the present invention is: a foundation pit safety support structure for housing construction, comprising a housing foundation pit, on which two support mechanisms are arranged, and the support mechanisms are used to protect the foundation pit of the housing construction;

[0007] The two support mechanisms each include a rotating unit, a driving unit, a fixing unit and a docking unit. The rotating unit includes two fixing plates attached to the top of the foundation pit of the house. One end of the two fixing plates is rotatably connected to a rotating shaft, and the two rotating shafts are fixedly connected to a rotating plate. A plurality of telescopic rods are commonly fixedly connected to one side of the two fixing plates close to each other, a plurality of fixing rods are fixedly connected to one side of one of the rotating plates, a movable groove is opened at one end of the plurality of fixing rods, and movable rods are slidably connected in the plurality of movable grooves, and one end of the plurality of movable rods is fixedly connected to one side of the other rotating plate.

[0008] Preferably, the driving unit includes a fixed rail fixedly connected to the top of one of the fixed plates, a sliding groove is provided at one end of the fixed rail, a sliding rod is slidably connected in the sliding groove, a rack is fixedly connected to one end of the sliding rod, a gear is keyed to one end of the rotating shaft, the gear is meshed with the rack, two support blocks are fixedly connected to the top of the fixed rail, a rotating hole is provided on one side of the two support blocks, a threaded rod is rotatably connected in the two rotating holes, a mounting block is screwed on the threaded rod, a strip hole is provided on the top inner wall of the sliding groove, and the bottom end of the mounting block passes through the strip hole and is fixedly connected to the top of the sliding rod.

[0009] Preferably, the cylindrical outer walls of the plurality of fixed rods are fixedly connected to the first U-shaped block, the cylindrical outer walls of the plurality of movable rods are fixedly connected to the second U-shaped block, the plurality of second U-shaped blocks are rotatably connected to driven rods, one end of the plurality of driven rods is slidably sleeved with a rotating rod, and one end of the plurality of rotating rods is rotatably connected to the first U-shaped block respectively.

[0010] Preferably, one side of the two rotating plates is provided with an insertion hole, and one side of the two rotating plates is provided with a plurality of insertion rods, and one end of the plurality of insertion rods respectively passes through the plurality of insertion holes and extends to the inside of the house foundation pit.

[0011] Preferably, the docking unit includes a receiving groove provided on one side of another fixed plate, a movable hole provided on the top inner wall of the receiving groove, a fixed shaft rotatably connected in the movable hole, an extrusion wheel fixedly connected to the bottom end of the fixed shaft, a clamping block slidably connected in the receiving groove, a clamping groove provided on one side of one of the fixed plates, two telescopic columns fixedly connected to the inner wall of one side of the receiving groove, one end of the two telescopic columns are fixedly connected to one side of the clamping block, and connecting springs are sleeved on the two telescopic columns, and the two ends of the connecting springs are respectively fixedly connected to the fixed plate and the clamping block.

[0012] Preferably, a rotating handle is fixedly connected to the top end of the fixed shaft, a groove is opened at one end of the rotating handle, a movable hook is slidably connected in the groove, a telescopic spring is arranged in the groove, and both ends of the telescopic spring are fixedly connected to the rotating handle and the movable hook respectively.

[0013] Preferably, a mounting column is fixedly connected to the top of one of the fixing plates.

[0014] Preferably, the fixing unit includes a notch groove formed at the top of two fixing plates, fixing columns are provided at the top of the two fixing plates, the bottom ends of the two fixing columns respectively pass through the two notches and extend to the interior of the house foundation pit, the cylindrical outer sides of the two fixing columns are fixedly connected with mounting plates, sliding holes are formed at the top of the two mounting plates, latches are provided in the two sliding holes, slots are formed at the top of the two fixing plates, and the bottom ends of the two latches respectively extend into the two slots.

[0015] Preferably, a return spring is sleeved on each of the two latches, and two ends of the return spring are fixedly connected to the latch and the mounting plate respectively.

[0016] The present invention provides a foundation pit safety support structure for housing construction through improvement, which has the following improvements and advantages compared with the prior art:

[0017] First, the present invention drives a plurality of fixed columns into the ground for positioning through the setting of a supporting mechanism, then places a supporting mechanism between every two fixed columns, and sequentially clamps the notched grooves on the two fixed plates on the fixed columns, so that a plurality of supporting mechanisms are connected at the end, and through the setting of a driving unit, a rotating plate is made to fit the inside of the foundation pit, and then a plurality of plug rods are inserted into the soil, and through the setting of a docking unit, a plurality of supporting mechanisms are docked and connected into a whole, thereby realizing the installation of an independent closing and connecting supporting mechanism at the top edge of the foundation pit to protect the periphery of the foundation pit, thereby strengthening the protective effect on the edge of the foundation pit, and preventing the soil at the top edge of the house foundation pit from collapsing.

[0018] Second, the present invention sets a driving unit, wherein the threaded rod is rotated to drive the mounting block to move, the mounting block moves to drive the sliding rod to move, the sliding rod moves to drive the rack to move, the rack moves to drive the gear to rotate, the gear rotates to drive the rotating shaft and the rotating plate to rotate, so that the rotating plate fits against the inner wall of the house foundation pit, thereby realizing the angle adjustment of the rotating plate.

[0019] Third: The present invention sets a docking unit, and holding the rotating handle drives the fixed shaft to rotate, and the rotation of the fixed shaft drives the extruding wheel to rotate, and the extruding wheel rotates to squeeze the card block to move, so that the card block is moved out of the storage slot and inserted into the card slot. The movement of the card block drives the telescopic column to extend, and at the same time drives the connecting spring to extend and elastically deform, until the rotating handle drives the movable hook to move to the position of the installation column on another support mechanism, and the movable hook is pulled outward to move, and the movement of the movable hook drives the telescopic spring to stretch and elastically deform until the movable hook hooks the installation column, thereby realizing the docking of multiple support mechanisms and connecting them into a whole.

[0020] Fourthly, the present invention uses the setting of the fixing unit to clamp the notched grooves on the two fixing plates in the fixing column. The latch is first pulled upward to drive the reset spring to stretch and elastically deform. When the slot moves to the bottom of the latch, the latch is released, so that the reset spring drives the latch into the slot, thereby fixing the two fixing plates of the support mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 It is an enlarged three-dimensional structural schematic diagram of the support mechanism in the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating unit in the present invention;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixed rod and the movable rod in the present invention;

[0026] Figure 5 For the present invention Figure 2 Schematic diagram of the internal structure at A in the middle;

[0027] Figure 6 It is a schematic diagram of the internal cross-sectional structure of the rotating handle in the present invention;

[0028] Figure 7 It is a schematic diagram of the cross-sectional structure of the card block and the card slot in the present invention;

[0029] Figure 8It is a schematic diagram of the three-dimensional structure of the notch groove and the fixing column in the present invention;

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of the house foundation pit, inserted rods and fixed columns in the present invention.

[0031] Reference numerals:

[0032] 1. House foundation pit; 2. Support mechanism; 201. Fixed plate; 202. Rotating shaft; 203. Rotating plate; 204. Telescopic rod; 205. Fixed rod; 206. Movable rod; 207. Second U-shaped block; 208. Rotating rod; 209. Follower rod; 210. First U-shaped block; 211. Insert rod; 3. Fixed rail; 301. Support block; 302. Threaded rod; 303. Mounting block; 304. Sliding rod; 305. Rack; 306. Gear; 4. Fixed column; 401. Mounting plate; 402. Latch; 403. Reset spring; 404. Notch groove; 5. Fixed shaft; 501. Rotating handle; 502. Movable hook; 503. Mounting column; 504. Telescopic spring; 505. Extrusion wheel; 506. Block; 507. Slot; 508. Telescopic column; 509. Connecting spring. DETAILED DESCRIPTION

[0033] The present invention is described in detail below, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention provides a foundation pit safety support structure for housing construction through improvement. The technical solution of the present invention is:

[0035] like Figures 1 to 9 As shown, an embodiment of the present invention provides a foundation pit safety support structure for housing construction, including a housing foundation pit 1, on which two support mechanisms 2 are arranged, and the support mechanisms 2 are used to protect the foundation pit of the housing construction;

[0036] The two supporting mechanisms 2 each include a rotating unit, a driving unit, a fixing unit and a docking unit. The rotating unit includes two fixing plates 201 attached to the top of the house foundation pit 1. One end of the two fixing plates 201 is rotatably connected to a rotating shaft 202. The two rotating shafts 202 are fixedly connected to a rotating plate 203. A plurality of telescopic rods 204 are commonly fixedly connected to one side of the two fixing plates 201 that are close to each other. A plurality of fixing rods 205 are fixedly connected to one side of one rotating plate 203. A movable groove is provided at one end of the plurality of fixing rods 205. A movable rod 206 is slidably connected in the plurality of movable grooves. One end of the plurality of movable rods 206 is fixedly connected to one side of the other rotating plate 203. Through the setting of the supporting mechanism 2, a plurality of fixing columns 4 are driven into the foundation pit, and then the supporting mechanism 2 is installed between every two fixing columns 4, so that an independent tail-jointed supporting mechanism 2 is installed at the top edge of the foundation pit to protect the periphery of the foundation pit, thereby strengthening the protective effect on the edge of the foundation pit, so that the soil at the top edge of the house foundation pit 1 will not collapse.

[0037] As a further solution of the present invention, the driving unit includes a fixed rail 3 fixedly connected to the top of one of the fixed plates 201, a sliding groove is provided at one end of the fixed rail 3, a sliding rod 304 is slidably connected in the sliding groove, a rack 305 is fixedly connected at one end of the sliding rod 304, a gear 306 is keyed at one end of the rotating shaft 202, the gear 306 is meshed with the rack 305, two support blocks 301 are fixedly connected to the top of the fixed rail 3, a rotating hole is provided on one side of the two support blocks 301, and a rotating hole is provided in the two rotating holes. A threaded rod 302 is connected for common rotation, a mounting block 303 is screwed on the threaded rod 302, a strip hole is opened on the top inner wall of the sliding groove, the bottom end of the mounting block 303 passes through the strip hole and is fixedly connected to the top of the sliding rod 304; through the setting of the driving unit, the rotating threaded rod 302 drives the sliding rod 304 and the rack 305 to move through the mounting block 303, and the movement of the rack 305 drives the gear 306, the rotating shaft 202 and the rotating plate 203 to rotate, so that the rotating plate 203 can fit with the inner wall of the foundation pit.

[0038] Furthermore, the cylindrical outer walls of the multiple fixed rods 205 are fixedly connected to the first U-shaped block 210, the cylindrical outer walls of the multiple movable rods 206 are fixedly connected to the second U-shaped block 207, the multiple second U-shaped blocks 207 are rotatably connected to the driven rods 209, one end of the multiple driven rods 209 is slidably sleeved with the rotating rod 208, and one end of the multiple rotating rods 208 is rotatably connected to the first U-shaped block 210 respectively; through the setting of the fixed rod 205, the telescopic rods composed of the multiple fixed rods 205 and the multiple movable rods 206, the telescopic sticks composed of the multiple rotating rods 208 and the multiple driven rods 209, the multiple telescopic sticks and the multiple telescopic sticks can form a fence, thereby improving the protection effect of the foundation pit.

[0039] Furthermore, one side of the two rotating plates 203 is provided with a socket, and one side of the two rotating plates 203 is provided with multiple insertion rods 211, one end of the multiple insertion rods 211 respectively penetrates the multiple insertion holes and extends to the inside of the house foundation pit 1; through the setting of the insertion rods 211, the multiple insertion rods 211 pass through the sockets on the rotating plates 203 and are inserted into the soil from the inner wall of the house foundation pit 1, thereby improving the stability of the soil around the foundation pit.

[0040] As a further solution of the present invention, the docking unit includes a receiving groove provided on one side of another fixed plate 201, a movable hole provided on the top inner wall of the storage groove, a fixed shaft 5 rotatably connected in the movable hole, an extrusion wheel 505 fixedly connected at the bottom end of the fixed shaft 5, a clamping block 506 slidably connected in the storage groove, a clamping groove 507 provided on one side of one of the fixed plates 201, two telescopic columns 508 fixedly connected to the inner wall of one side of the storage groove, one end of the two telescopic columns 508 are fixedly connected to one side of the clamping block 506, and connecting springs 509 are sleeved on the two telescopic columns 508, and the two ends of the connecting springs 509 are respectively fixedly connected to the fixed plate 201 and the clamping block 506; through the setting of the docking unit, the rotating fixed shaft 5 drives the extrusion wheel 505 to rotate, so that the extrusion wheel 505 squeezes the clamping block 506 into the clamping groove 507 of another support mechanism 2, thereby realizing the connection of multiple support mechanisms 2 into a whole, and through the setting of the connecting spring 509, it is realized that the clamping block 506 is driven to reset.

[0041] Furthermore, a rotating handle 501 is fixedly connected to the top of the fixed shaft 5, and a groove is opened at one end of the rotating handle 501, in which a movable hook 502 is slidably connected, and a telescopic spring 504 is provided in the groove, and both ends of the telescopic spring 504 are respectively fixedly connected to the rotating handle 501 and the movable hook 502, and a mounting column 503 is fixedly connected to the top of one of the fixed plates 201; by the setting of the movable hook 502, the movable hook 502 is pulled outward to hook onto the mounting column 503 of the adjacent supporting mechanism 2, thereby fixing the fixed shaft 5.

[0042] As a further solution of the present invention, the fixing unit includes a notch groove 404 formed at the top of two fixing plates 201, a fixing column 4 is provided at the top of the two fixing plates 201, the bottom ends of the two fixing columns 4 respectively pass through the two notches 404 and extend to the inside of the house foundation pit 1, the cylindrical outer walls of the two fixing columns 4 are fixedly connected with the mounting plates 401, the tops of the two mounting plates 401 are provided with sliding holes, the two sliding holes are provided with latches 402, the tops of the two fixing plates 201 are provided with slots, the bottom ends of the two latches 402 respectively extend into the two slots, The two latches 402 are both sleeved with a return spring 403, and the two ends of the return spring 403 are fixedly connected to the latch 402 and the mounting plate 401 respectively; through the setting of the fixing unit, when the notched grooves 404 on the two fixing plates 201 are clamped in the fixing column 4, the latch 402 is first pulled upward to drive the return spring 403 to stretch and elastically deform, and when the slot moves to the bottom of the latch 402, the latch 402 is released, so that the return spring 403 drives the latch 402 into the slot, thereby fixing the two fixing plates 201 of the support mechanism 2.

[0043] Specific implementation steps: drive multiple fixing columns 4 into the ground for positioning, then place a support mechanism 2 between every two fixing columns 4, and sequentially clamp the notched grooves 404 on the two fixing plates 201 on the fixing columns 4, so that multiple support mechanisms 2 are connected to each other. During the process of the notched grooves 404 being clamped in the fixing columns 4, first pull the latch 402 upward to move upward, and the movement of the latch 402 drives the reset spring 403 to stretch and elastically deform. When the slot moves to the bottom of the latch 402, release the latch 402, so that the reset spring 403 drives the latch 402 into the slot, and then pull the two fixing plates. When the rotating plates 201 and 203 move away from each other, the fixed plate 201 drives the telescopic rod 204 to extend, the telescopic rod composed of the plurality of fixed rods 205 and the plurality of movable rods 206 extends synchronously, the telescopic rod composed of the plurality of rotating rods 208 and the plurality of driven rods 209 extends synchronously, the rotating threaded rod 302 drives the mounting block 303 to move, the movement of the mounting block 303 drives the sliding rod 304 to move, the movement of the sliding rod 304 drives the rack 305 to move, the movement of the rack 305 drives the gear 306 to rotate, the rotation of the gear 306 drives the rotating shaft 202 and the rotating plate 203 to move. The rotating plate 203 is rotated to make the rotating plate 203 fit with the inner wall of the top of the house foundation pit 1, and then the multiple insertion rods 211 are inserted into the soil from the inner wall of the house foundation pit 1 through the insertion holes in turn, and the multiple telescopic rods and the multiple telescopic rods can be combined into a fence, so that the soil at the top edge of the house foundation pit 1 can be protected. The rotating handle 501 is held to drive the fixed shaft 5 to rotate, and the rotation of the fixed shaft 5 drives the squeezing wheel 505 to rotate, and the squeezing wheel 505 rotates to squeeze the clamping block 506 to move, so that the clamping block 506 is moved out of the storage slot and inserted into the clamping slot 507, and the movement of the clamping block 506 drives the telescopic column 508 to extend and retract. The movable hook 502 moves and drives the telescopic spring 504 to stretch and elastically deform until the movable hook 502 hooks the mounting column 503, thereby realizing the installation of an independent finishing connection support mechanism 2 at the top edge of the foundation pit to protect the periphery of the foundation pit, thereby strengthening the protection effect on the edge of the foundation pit and preventing the soil at the top edge of the house foundation pit 1 from collapsing.

[0044] The above description enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A foundation pit safety support structure for housing construction, comprising a housing foundation pit (1), characterized in that: Two supporting mechanisms (2) are provided on the house foundation pit (1), and the supporting mechanisms (2) are used to protect the foundation pit of the house building; The two support mechanisms (2) each comprise a rotating unit, a driving unit, a fixing unit and a docking unit. The rotating unit comprises two fixing plates (201) attached to the top of the house foundation pit (1). One end of each of the two fixing plates (201) is rotatably connected to a rotating shaft (202). Each of the two rotating shafts (202) is fixedly connected to a rotating plate (203). A plurality of telescopic rods (204) are fixedly connected to one side of the two fixing plates (201) close to each other. A plurality of fixing rods (205) are fixedly connected to one side of one of the rotating plates (203). A movable groove is provided at one end of each of the fixing rods (205). A movable rod (206) is slidably connected to each of the movable grooves. One end of each of the movable rods (206) is fixedly connected to one side of the other rotating plate (203).

2. A foundation pit safety support structure for housing construction according to claim 1, characterized in that: The driving unit comprises a fixed rail (3) fixedly connected to the top of one of the fixed plates (201), a sliding groove is provided at one end of the fixed rail (3), a sliding rod (304) is slidably connected in the sliding groove, a rack (305) is fixedly connected to one end of the sliding rod (304), a gear (306) is keyed to one end of the rotating shaft (202), the gear (306) is meshed with the rack (305), two supporting blocks (301) are fixedly connected to the top of the fixed rail (3), a rotating hole is provided on one side of the two supporting blocks (301), a threaded rod (302) is rotatably connected in the two rotating holes, a mounting block (303) is screwed on the threaded rod (302), a strip hole is provided on the top inner wall of the sliding groove, and the bottom end of the mounting block (303) passes through the strip hole and is fixedly connected to the top of the sliding rod (304).

3. A foundation pit safety support structure for housing construction according to claim 2, characterized in that: The cylindrical outer walls of the plurality of fixed rods (205) are fixedly connected to a first U-shaped block (210), the cylindrical outer walls of the plurality of movable rods (206) are fixedly connected to a second U-shaped block (207), the plurality of second U-shaped blocks (207) are rotatably connected to a driven rod (209), one end of the plurality of driven rods (209) is slidably sleeved with a rotating rod (208), and one end of the plurality of rotating rods (208) is rotatably connected to the first U-shaped block (210).

4. A foundation pit safety support structure for housing construction according to claim 3, characterized in that: One side of the two rotating plates (203) is provided with an insertion hole, and one side of the two rotating plates (203) is provided with a plurality of insertion rods (211), one end of the plurality of insertion rods (211) respectively passes through the plurality of insertion holes and extends into the interior of the house foundation pit (1).

5. The foundation pit safety support structure for housing construction according to claim 1 is characterized in that: The docking unit comprises a receiving groove provided on one side of another fixed plate (201), a movable hole provided on the top inner wall of the receiving groove, a fixed shaft (5) rotatably connected in the movable hole, a squeezing wheel (505) fixedly connected to the bottom end of the fixed shaft (5), a clamping block (506) slidably connected in the receiving groove, a clamping groove (507) provided on one side of one of the fixed plates (201), two telescopic columns (508) fixedly connected to the inner wall of one side of the receiving groove, one end of the two telescopic columns (508) are fixedly connected to one side of the clamping block (506), and a connecting spring (509) is sleeved on the two telescopic columns (508), and the two ends of the connecting spring (509) are respectively fixedly connected to the fixed plate (201) and the clamping block (506).

6. A foundation pit safety support structure for housing construction according to claim 5, characterized in that: The top end of the fixed shaft (5) is fixedly connected to a rotating handle (501), one end of the rotating handle (501) is provided with a groove, a movable hook (502) is slidably connected in the groove, a telescopic spring (504) is provided in the groove, and two ends of the telescopic spring (504) are respectively fixedly connected to the rotating handle (501) and the movable hook (502).

7. A foundation pit safety support structure for housing construction according to claim 5, characterized in that: A mounting column (503) is fixedly connected to the top of one of the fixing plates (201).

8. The foundation pit safety support structure for housing construction according to claim 1 is characterized in that: The fixing unit comprises a notch groove (404) provided at the top of two fixing plates (201), a fixing column (4) is provided at the top of the two fixing plates (201), the bottom ends of the two fixing columns (4) respectively penetrate through the two notch grooves (404) and extend to the inside of the house foundation pit (1), the cylindrical outer walls of the two fixing columns (4) are fixedly connected to the mounting plates (401), the tops of the two mounting plates (401) are provided with sliding holes, the two sliding holes are provided with latches (402), the tops of the two fixing plates (201) are provided with slots, and the bottom ends of the two latches (402) respectively extend into the two slots.

9. A foundation pit safety support structure for housing construction according to claim 8, characterized in that: A return spring (403) is sleeved on each of the two latches (402), and two ends of the return spring (403) are fixedly connected to the latch (402) and the mounting plate (401) respectively.

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