Temporary supporting structure for house building deep foundation pit

Abstract

The utility model discloses a house building deep foundation pit temporary supporting structure, which relates to the technical field of house building construction supporting and comprises a foundation pit, an inner groove bottom frame plate is fixedly mounted on the bottom surface of the foundation pit, a motor is fixedly mounted in a groove of the inner groove bottom frame plate, and an output shaft of the motor is fixedly connected with a threaded rod which is limited and rotated in the inner groove bottom frame plate. Sliding rods used for limiting and sliding the displacement sleeve are fixedly connected to the two sides in the groove of the inner groove bottom frame plate, a fixed shaft rod is fixedly connected between the movable cavities, a main supporting plate used for supporting the slope of the foundation pit is rotationally arranged outside the fixed shaft rod in a sleeving mode, and a hinge rod is hinged between the displacement sleeve and the main supporting plate; the first auxiliary supporting plate and the second auxiliary supporting plate are sequentially fixed to the foundation pit in a threaded mode on the oblique upward surface of the main supporting plate, the main supporting plate, the first auxiliary supporting plate and the second auxiliary supporting plate obliquely penetrate into the interior of the foundation pit and are fixedly provided with anchor rods and anchor drill bits in an inserted mode in a threaded mode, and the effects of ensuring safe reinforcement and flexible supporting adjustment are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction support, in particular to a temporary support structure for a deep foundation pit of a building. Background Art

[0002] A deep foundation pit refers to a large foundation pit with a depth of more than 3 meters excavated at a construction site. Usually, a large amount of earthwork, support consolidation engineering, and pumping and drainage management work are required to ensure the stability and safety of the foundation pit. The construction of deep foundation pits is complex and risky, so it is necessary to strictly abide by relevant specifications and standards. Common deep foundation pits include underground garages, underground shopping malls, basements, underground factories, etc.

[0003] Since the inner slope of the foundation pit is relatively steep, it is easy for the pit to slide, which poses a great safety hazard to the construction project and construction workers and needs to be reinforced. In addition, most temporary support structures are assembled and assembled. During the connection process, they need to be adjusted several times according to the slope of the foundation pit before they can fit the foundation pit, thereby reducing the work efficiency of the support construction. Utility Model Content

[0004] The utility model aims to provide a temporary supporting structure for a deep foundation pit of a building, which solves the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temporary support structure for a deep foundation pit of a building, comprising a foundation pit, an inner groove bottom frame plate is fixedly installed on the bottom surface of the foundation pit, a motor is fixedly installed in the groove of the inner groove bottom frame plate, an output shaft of the motor is fixedly connected to a threaded rod that is limitedly rotated in the inner groove bottom frame plate, a displacement sleeve is provided on the external thread sleeve of the threaded rod, sliding rods for limiting the sliding of the displacement sleeve are fixedly connected on both sides of the groove of the inner groove bottom frame plate, an active cavity is provided on one side surface of the inner groove bottom frame plate, a fixed axis rod is fixedly connected between the active cavities, a main support plate for supporting the slope of the foundation pit is rotatably sleeved on the outer side of the fixed axis rod, and an articulated rod is hingedly connected between the displacement sleeve and the main support plate, the oblique upward surface of the main support plate is sequentially fixed with a first auxiliary support plate and a second auxiliary support plate threadedly fixed to the foundation pit, and the main support plate, the first auxiliary support plate and the second auxiliary support plate obliquely penetrate into the internal thread of the foundation pit and are fixed with anchor rods and anchor drill bits.

[0006] Optionally, four first bolts are fixed between the inner tank base frame plate and the foundation pit in a symmetrical threaded connection.

[0007] Optionally, the upper surface of the displacement sleeve and the oblique surface of one side of the main supporting plate are both fixedly connected with hinge seats, and the hinge rod is hinged and rotated between the hinge seats.

[0008] Optionally, the top inclined surfaces of the main support plate and the first auxiliary support plate are provided with card grooves inwardly, and a card insertion plate is inserted into the card groove, and the two card insertion plates are respectively fixedly connected to the lower end surfaces of the first auxiliary support plate and the second auxiliary support plate.

[0009] Optionally, the main support plate and the first auxiliary support plate that pass through the plug-in plate to the interior of the foundation pit, and the second auxiliary support plate that passes through the interior of the foundation pit are both threadedly connected with second bolts.

[0010] Optionally, the surfaces of the anchor rods that are attached to the main supporting plate, the first auxiliary supporting plate and the second auxiliary supporting plate are all threadedly sleeved with nut sleeves.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model uses anchor rods and anchor drill bits that are threadedly inserted and fixed to the foundation pit through the main support plate, the first auxiliary support plate and the second auxiliary support plate, so that construction workers can use the anchor drill bit to thread the anchor rods into the foundation pit, thereby providing stable support for the main support plate, the first auxiliary support plate and the second auxiliary support plate, thereby ensuring the safe reinforcement of the temporary support structure of the deep foundation pit of the building construction.

[0013] 2. The utility model adopts the drive of the motor in the inner groove bottom frame plate, so that the construction personnel can start the motor as needed according to the angle of the slope of the foundation pit, and the output shaft of the motor drives the threaded rod in the inner groove bottom frame plate to perform limited thread rotation, and the displacement sleeve sleeved outside the threaded rod is displaced outside the threaded rod under the restriction condition of the limited sliding outside the sliding rod, and in the displacement process, according to the displacement distance of the displacement sleeve outside the threaded rod, the main support plate is driven by the hinged rod to change the support angle, and the main support plate rotates outside the fixed axis rod of the movable cavity until the main support plate fits the slope surface of the foundation pit, and then the corresponding first auxiliary support plate and the second auxiliary support plate are connected to the main support plate according to the depth of the foundation pit, thereby not only achieving flexible support adjustment of the temporary support structure, but also ensuring the accurate stability of the spliced ​​support, thereby improving the support work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the structure of the utility model;

[0015] Figure 2 It is a front cross-sectional view of the structure of the utility model;

[0016] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure at center A;

[0017] Figure 4It is a front cross-sectional view of part of the structure of the utility model.

[0018] In the figure: 1-foundation pit, 2-inner groove base plate, 3-first bolt, 4-motor, 5-threaded rod, 6-sliding rod, 7-displacement sleeve, 8-movable cavity, 9-fixed axis rod, 10-main support plate, 11-hinge seat, 12-hinge rod, 13-first auxiliary support plate, 14-second auxiliary support plate, 15-card groove, 16-card plug-in plate, 17-second bolt, 18-anchor rod, 19-anchor drill bit, 20-nut sleeve. DETAILED DESCRIPTION

[0019] 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.

[0020] Embodiment 1:

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a temporary supporting structure for a deep foundation pit of a building, comprising a foundation pit 1, an inner groove bottom frame plate 2 is fixedly installed on the bottom surface of the foundation pit 1, four first bolts 3 are symmetrically threadedly connected and fixed between the inner groove bottom frame plate 2 and the foundation pit 1, a motor 4 is fixedly installed in the groove of the inner groove bottom frame plate 2, the output shaft of the motor 4 is fixedly connected to a threaded rod 5 that is limitedly rotated in the inner groove bottom frame plate 2, the external thread sleeve of the threaded rod 5 is provided with a displacement sleeve 7, both sides of the groove of the inner groove bottom frame plate 2 are fixedly connected with sliding rods 6 for limiting the sliding of the displacement sleeve 7, an active cavity 8 is provided on one side surface of the inner groove bottom frame plate 2, and the active cavities 8 are fixedly connected between them. It is connected with a fixed axis rod 9, and the outer sleeve of the fixed axis rod 9 is rotatably provided with a main support plate 10 for supporting the slope of the foundation pit 1, and a hinge rod 12 is hingedly connected between the displacement sleeve 7 and the main support plate 10, and the upper surface of the displacement sleeve 7 and the oblique surface of one side of the main support plate 10 are fixedly connected with an articulated seat 11, and the articulated rod 12 is hingedly rotated between the articulated seats 11, and the oblique upward surface of the main support plate 10 is successively fixed with the first auxiliary support plate 13 and the second auxiliary support plate 14 which are threadedly fixed to the foundation pit 1, and the main support plate 10, the first auxiliary support plate 13 and the second auxiliary support plate 14 obliquely penetrate into the internal thread of the foundation pit 1 and are fixed with anchor rods 18 and anchor drill bits 19.

[0022] More specifically, in this embodiment, first, the inner groove base frame plate 2 is firmly connected by the first bolt 3, and the construction personnel can start the motor 4 as needed according to the angle of the slope of the foundation pit 1, and the output shaft of the motor 4 drives the threaded rod 5 in the inner groove base frame plate 2 to perform limited threaded rotation, and the displacement sleeve 7 sleeved outside the threaded rod 5 is displaced outside the threaded rod 5 under the restriction condition of the limited sliding outside the sliding rod 6, and in the displacement process, according to the displacement distance of the displacement sleeve 7 outside the threaded rod 5, the main support plate 10 is driven to change the support angle through the hinged rod 12 between the hinged seats 11, and the main support plate 10 rotates outside the fixed axis rod 9 of the movable cavity 8 until the main support plate 10 fits the slope surface of the foundation pit 1, and then the corresponding first auxiliary support plate 13 and the second auxiliary support plate 14 are connected to the main support plate 10 according to the depth of the foundation pit 1, thereby not only achieving flexible support adjustment of the temporary support structure, but also ensuring the accurate stability of the spliced ​​support, thereby improving the support work efficiency.

[0023] The construction workers then use the anchor drill bit 19 to thread the anchor rods 18 into the foundation pit 1, thereby providing stable support for the main support plate 10, the first auxiliary support plate 13 and the second auxiliary support plate 14, thereby ensuring the safe reinforcement of the temporary support structure of the deep foundation pit of the building.

[0024] Furthermore, the surfaces of the anchor rod 18 that are in contact with the main support plate 10 , the first auxiliary support plate 13 , and the second auxiliary support plate 14 are all threadedly sleeved with nut sleeves 20 .

[0025] It is worth noting that after the anchor rod 18 is threadedly inserted into the interior of the foundation pit 1, the nut sleeve 20 can be threadedly sleeved on the surface of the anchor rod 18 that is attached to the main support plate 10, the first auxiliary support plate 13 and the second auxiliary support plate 14 respectively.

[0026] Embodiment 2, based on the above embodiment:

[0027] Furthermore, a card groove 15 is opened inward on the top inclined surface of the main support plate 10 and the first auxiliary support plate 13, and a card insert plate 16 is inserted into the card groove 15, and the two card insert plates 16 are respectively fixedly connected to the lower end surfaces of the first auxiliary support plate 13 and the second auxiliary support plate 14, and the main support plate 10 and the first auxiliary support plate 13 pass through the card insert plate 16 to the inside of the foundation pit 1, and the second auxiliary support plate 14 passes through the inside of the foundation pit 1, and both are threadedly connected with a second bolt 17.

[0028] More specifically, in this embodiment, the first auxiliary support plate 13 and the second auxiliary support plate 14 can respectively insert the card insert plate 16 into the card groove 15 to ensure the accurate and stable support connection, and then the second bolt 17 is threadedly connected to the main support plate 10, the first auxiliary support plate 13 and the second auxiliary support plate 14 to penetrate into the interior of the foundation pit 1.

[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 temporary supporting structure for a deep foundation pit of a building, comprising a foundation pit (1), characterized in that: An inner groove bottom frame plate (2) is fixedly installed on the bottom surface of the foundation pit (1), a motor (4) is fixedly installed in the groove of the inner groove bottom frame plate (2), an output shaft of the motor (4) is fixedly connected to a threaded rod (5) which is limitedly rotatable in the inner groove bottom frame plate (2), a displacement sleeve (7) is provided on the outer thread sleeve of the threaded rod (5), sliding rods (6) for limiting the sliding of the displacement sleeve (7) are fixedly connected on both sides of the groove of the inner groove bottom frame plate (2), an active cavity (8) is provided on one side surface of the inner groove bottom frame plate (2), and a fixed axis rod (9) is fixedly connected between the active cavities (8) The fixed axis rod (9) is externally sleeved with a main support plate (10) for supporting the slope of the foundation pit (1), and a hinge rod (12) is hingedly connected between the displacement sleeve (7) and the main support plate (10). The oblique upward surface of the main support plate (10) is sequentially threadedly fixed to the first auxiliary support plate (13) and the second auxiliary support plate (14) of the foundation pit (1). The main support plate (10), the first auxiliary support plate (13) and the second auxiliary support plate (14) obliquely penetrate the internal threads of the foundation pit (1) and are fixed with anchor rods (18) and anchor drill bits (19).

2. A temporary supporting structure for a deep foundation pit for building construction according to claim 1, characterized in that: Four first bolts (3) are fixed between the inner tank bottom frame plate (2) and the foundation pit (1) in a symmetrical threaded connection.

3. A temporary supporting structure for a deep foundation pit for building construction according to claim 1, characterized in that: The upper surface of the displacement sleeve (7) and the oblique surface of one side of the main support plate (10) are both fixedly connected with an articulated seat (11), and the articulated rod (12) is hinged and rotated between the articulated seats (11).

4. A temporary supporting structure for a deep foundation pit for building construction according to claim 1, characterized in that: The top oblique surfaces of the main support plate (10) and the first auxiliary support plate (13) are provided with a card groove (15) inwardly, and the card groove (15) is provided with a card insertion plate (16), and the two card insertion plates (16) are respectively fixedly connected to the lower end surfaces of the first auxiliary support plate (13) and the second auxiliary support plate (14).

5. A temporary supporting structure for a deep foundation pit of a building according to claim 4, characterized in that: The main support plate (10) and the first auxiliary support plate (13) penetrate the plug plate (16) to the inside of the foundation pit (1), and the second auxiliary support plate (14) penetrates to the inside of the foundation pit (1), and are both threadedly connected with second bolts (17).

6. A temporary supporting structure for a deep foundation pit of a building according to claim 1, characterized in that: The surfaces of the anchor rod (18) that are in contact with the main support plate (10), the first auxiliary support plate (13) and the second auxiliary support plate (14) are all threadedly sleeved with nut sleeves (20).

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