Combined supporting structure for building foundation pit supporting

Abstract

The utility model discloses a combined supporting structure for building foundation pit supporting, which relates to the technical field of building foundation pit supporting and comprises a supporting base, a plurality of soil retaining frames are sequentially arranged at the top of the supporting base from bottom to top, and two bumps are symmetrically and fixedly connected to the tops of the supporting base and the soil retaining frames; two grooves corresponding to the protruding blocks are symmetrically formed in the bottom of the soil retaining frame, and the protruding blocks are inserted into the corresponding grooves. According to the requirement for the supporting height of the side wall of a foundation pit, the corresponding number of soil retaining frames are installed at the top of the supporting base from bottom to top to meet the supporting requirements of foundation pits with different heights, the application range is wider, the number of the supporting bases can be arranged side by side, and the two ends of a locking block are inserted into two adjacent closing-in grooves correspondingly through a pull handle; the two supporting bases are stably fixed together, the requirement for the supporting width of a foundation pit is met, meanwhile, the two supporting bases are connected together more tightly, and stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building foundation pit support especially is related to a combined support structure for building foundation pit support. BACKGROUND

[0002] The building foundation pit support is a kind of support, reinforcement and protective measures for the side wall and surrounding environment of foundation pit to ensure the safety of underground structure construction and surrounding environment;The building foundation pit support is a kind of temporary support, reinforcement, protection and groundwater control measures taken to protect the safety of underground main structure construction and surrounding environment, which aims to ensure the stability of foundation pit during excavation, prevent collapse and deformation, and thus ensure the safety of construction personnel and the normal use of surrounding buildings, roads and underground pipelines and other facilities.

[0003] The utility model discloses a kind of building foundation pit support components, solve the poor supporting stability effect of building foundation pit support component on current market, cannot play good supporting effect to foundation pit support component, the problem of greater limitation of use, it includes retaining frame, two supporting mechanisms are installed in the lower part of the retaining frame side, the top of the two supporting mechanisms is equipped with connecting frame, rotating rod is rotatably connected between the two sides of the inner cavity of two connecting frames, rotating block is rotatably connected on the surface of the two rotating rods, supporting column is installed on the surface of the two rotating blocks, the building foundation pit support component is convenient to install.The supporting component for building foundation pit support in prior art is usually fixed size retaining frame, it is not convenient to adjust the height of retaining frame according to the support height needs of foundation pit side wall, it is difficult to meet the different support height needs of foundation pit, lead to narrow application range, for this, a kind of combined support structure for building foundation pit support is optimized. UTILITY MODEL CONTENTS

[0004] In order to solve the problems raised in the above background art, the utility model provides a combined support structure for building foundation pit support.

[0005] The combined support structure for building foundation pit support provided by the utility model adopts the following technical scheme: a support base is provided, a plurality of retaining frames are sequentially arranged on the top of the support base from bottom to top, two protrusions are symmetrically and fixedly connected to the top of the support base and the retaining frame; two grooves corresponding to the protrusions are symmetrically formed in the bottom of the retaining frame, and the protrusions are inserted into the corresponding grooves; two rows of penetrating rod rings are symmetrically and fixedly connected to the rear surface of the retaining frame, the penetrating rod rings are fixedly connected to the rear side wall of the retaining frame, and a reinforcing rod is penetratingly arranged on each row of penetrating rod rings; two internal thread sleeves corresponding to the reinforcing rod are symmetrically and fixedly connected to the top of the support base.

[0006] Preferably, the reinforcing rod comprises a rod portion movably penetrating a corresponding penetrating rod ring, a threaded portion fixedly connected to a bottom end of the rod portion, an internal thread formed in an inner side of a top end of the rod portion, and an external hexagonal portion fixedly sleeved to an outer side of an upper portion of the rod portion.

[0007] Preferably, a plurality of second fixing stakes are movably penetrated on the support base.

[0008] Preferably, a fixed vertical rod is fixedly connected to a top portion of the support base, a hinge rod is hingedly connected to an upper portion of a rear side plate of the fixed vertical rod, a fixed block is hingedly connected to an end of the hinge rod away from the fixed vertical rod, and a plurality of first fixing stakes are movably penetrated on the fixed block.

[0009] Preferably, an arc-shaped surface is formed on a bottom surface of the support base.

[0010] Preferably, two closing grooves are symmetrically formed on rear side walls at two ends of the support base, a locking block is arranged in the closing grooves, the locking block is in a horizontal "8" shape, and two ends of the locking block are respectively inserted into two adjacent closing grooves.

[0011] Preferably, a pull handle is fixedly connected to a rear side plate of the locking block, two screws are symmetrically movably penetrated on two sides of the pull handle, a threaded hole corresponding to the screw is formed on the rear side wall of the support base, and one end of the screw is inserted into the threaded hole and threadedly connected thereto.

[0012] In summary, the utility model has the following beneficial technical effects:

[0013] 1. In the utility model, a corresponding number of soil retaining frames can be installed on the top portion of the support base from bottom to top according to the support height requirement of the side wall of the foundation pit, so that the support requirement of foundation pits with different heights can be met, the application range is wider, the number of support bases can be placed side by side, the two ends of the locking block are inserted into two adjacent closing grooves by the pull handle, and the two support bases are stably fixed together, so that the two support bases are more closely connected together while meeting the support width requirement of the foundation pit, and the stability is improved.

[0014] 2. The arc-shaped surface arranged on the bottom portion of the support base is not affected when the support base is supported on the ground and the angle is adjusted, the combined support structure for building foundation pit support can be applied to building foundation pit support operations with various side wall angles, the fixed block is fixed by the second fixing stake, the fixed vertical rod is supported, and the stability of the combined support structure for building foundation pit support is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The whole structure of the combined support structure for building foundation pit support Figure 1 ;

[0016] Figure 2 Fig. 1 is a schematic diagram of the overall structure of a combined support structure for building foundation pit support; Figure 2 ;

[0017] Figure 3 Fig. 2 is a schematic diagram of the exploded view of a combined support structure for building foundation pit support;

[0018] Figure 4 Fig. 3 is an enlarged view of position A in the combined support structure for building foundation pit support;

[0019] Figure 5 Fig. 4 is a schematic diagram of the structure of a reinforcing rod in the combined support structure for building foundation pit support;

[0020] Figure 6 Fig. 5 is a schematic diagram of the structure at the soil retaining frame in the combined support structure for building foundation pit support; Figure 1 ;

[0021] Figure 7 Fig. 6 is a schematic diagram of the structure at the soil retaining frame in the combined support structure for building foundation pit support; Figure 2 ;

[0022] Figure 8 Fig. 7 is a schematic diagram of the structure at the support base in the combined support structure for building foundation pit support.

[0023] Mark 1, support base; 2, fixed vertical rod; 3, soil retaining frame; 4, rod passing ring; 5, reinforcing rod; 501, threaded part; 502, rod part; 503, outer hexagonal part; 504, internal thread; 6, protruding block; 7, closing groove; 8, hinged rod; 9, fixed block; 10, first fixed pile; 11, second fixed pile; 12, locking block; 13, threaded hole; 14, handle; 15, screw; 16, recess; 17, internal thread sleeve. DETAILED DESCRIPTION

[0024] The following will be described in detail in combination with the accompanying drawings. Figures 1-8 The utility model will be described in further detail.

[0025] Reference Figures 1-8The utility model discloses a combined supporting structure for building foundation pit support, including support base 1, the bottom surface of support base 1 is arc surface, specifically is circular arc surface, a plurality of second fixed piles 11 are movably provided on support base 1, a plurality of soil retaining frames 3 are sequentially provided from bottom to top on the top of support base 1, and the top of support base 1 and soil retaining frame 3 are symmetrically connected with two protruding blocks 6;Two recesses 16 corresponding with protruding block 6 are symmetrically arranged on the bottom of soil retaining frame 3, and protruding block 6 is inserted into corresponding recess 16;Two rows of rod penetrating rings 4 are fixedly connected to the rear surface of soil retaining frame 3, and the rod penetrating ring 4 is fixedly connected to the rear wall of soil retaining frame 3, and a reinforcing rod 5 is movably arranged on each row of rod penetrating ring 4;Two internal thread sleeves 17 corresponding with reinforcing rod 5 are fixedly connected to the top of support base 1.

[0026] The reinforcing rod 5 comprises a rod portion 502, the rod portion 502 is movably arranged on the corresponding rod penetrating ring 4, the bottom end of the rod portion 502 is fixedly connected with a threaded portion 501, the inner side of the top end of the rod portion 502 is provided with an internal thread 504, and the outer side of the upper portion of the rod portion 502 is fixedly provided with an external hexagonal portion 503, so that the external hexagonal portion 503 can be rotated by using a wrench or the like, and the reinforcing rod 5 can be rotated as a whole.

[0027] The top of the support base 1 is fixedly connected with a fixed vertical rod 2, the rear side plate of the fixed vertical rod 2 is hingedly connected with a hinge rod 8, one end of the hinge rod 8 away from the fixed vertical rod 2 is hingedly connected with a fixed block 9, and a plurality of first fixed piles 10 are movably arranged on the fixed block 9.

[0028] Two closing grooves 7 are symmetrically arranged on the rear side walls of the two ends of the support base 1, the closing groove 7 is provided with a locking block 12, the locking block 12 is in the shape of a horizontal "8", the two ends of the locking block 12 are respectively inserted into the two adjacent closing grooves 7, so that when the two ends of the locking block 12 are inserted into the corresponding closing grooves 7 and then pulled left and right, the two support bases 1 can be limited.

[0029] The rear side plate of the locking block 12 is fixedly connected with a pull handle 14, two screws 15 are symmetrically movably arranged on the two sides of the pull handle 14, the rear side wall of the support base 1 is provided with a threaded hole 13 corresponding to the screw 15, one end of the screw 15 is inserted into the corresponding threaded hole 13 and is threadedly connected with the threaded hole 13, the pull handle 14 is fixed on the support base 1 by using the screw 15, so that the locking block 12 cannot move out of the closing groove 7, thereby ensuring that the two support bases 1 are stably connected.

[0030] Referring to Figures 1-8 The working principle of the combined supporting structure for building foundation pit support in the utility model is as follows:

[0031] When the combined support structure for building foundation pit support in the utility model is needed to support the building foundation pit, the support base 1 is placed at the inner bottom of the foundation pit, according to the height requirement of the foundation pit, the corresponding number of soil retaining frames 3 are placed on the top of the support base 1 from bottom to top, the lowermost soil retaining frame 3 is inserted on the protruding block 6 on the top of the support base 1 through the bottom groove 16, the reinforcing rod 5 is inserted through the rod passing ring 4, the threaded part 501 at the bottom end of the reinforcing rod 5 corresponds to the internal thread sleeve 17, then the outer hexagonal part 503 is screwed by a tool to make the reinforcing rod 5 rotate, the threaded part 501 is screwed into the internal thread sleeve 17 and connected with it, and the outer hexagonal part 503 is tightly arranged on the top of the rod passing ring 4 on the upper row, so that the upper and lower soil retaining frames 3 can be more closely connected together, the next soil retaining frame 3 is placed on the top of the lower soil retaining frame 3, and one reinforcing rod 5 is arranged on each row of rod passing rings 4 on the upper soil retaining frame 3, the threaded part 501 of the upper reinforcing rod 5 is screwed with the internal thread 504 of the lower soil retaining frame 3, and the upper and lower soil retaining frames 3 are connected in sequence from bottom to top, so that the corresponding number of soil retaining frames 3 can be arranged according to the support height requirement of the foundation pit, the support base 1 is fixed in the inner bottom of the foundation pit through the second fixing pile 11, the angle of the support base 1 is adjusted according to the inclination angle of the inner wall of the foundation pit, until the soil retaining frame 3 is tightly arranged on the inner wall of the foundation pit, after the support base 1 is fixed by the second fixing pile 11, the adjusting hinge rod 8 is moved until the fixing block 9 is pressed on the inner bottom of the foundation pit, then the second fixing pile 11 is inserted into the underground soil of the foundation pit through the fixing block 9, so that the fixing block 9 is fixed by the second fixing pile 11; according to the support requirement of the width of the foundation pit, the next support base 1 is placed on one side of the installed support base 1, the end portions of the two support bases 1 are abutted, the two ends of the locking block 12 are inserted into the adjacent two closing grooves 7 by holding the pull handle 14, so that the two support bases 1 are connected, the screw 15 is inserted into the corresponding threaded hole 13 and screwed with it, so that the pull handle 14 is fixed on the two support bases 1, so that the two support bases 1 are stably fixed together, the installation of the soil retaining frame 3 on the subsequent support base 1 is carried out in the above-mentioned manner, until the combined support structure for building foundation pit support in the utility model can meet the use requirement of the support height and the support width, and then the operation is stopped.

Claims

1. A combined support structure for building foundation pit support, characterized by: Including support base (1), the top of the support base (1) is sequentially provided with a plurality of retaining frames (3) from bottom to top, and the top of the support base (1) and the retaining frame (3) is symmetrically and fixedly connected with two protrusions (6); The bottom of the retaining frame (3) is symmetrically provided with two grooves (16) corresponding to the protrusions (6), and the protrusions (6) are inserted into the corresponding grooves (16); The rear surface of the retaining frame (3) is symmetrically and fixedly connected with two rows of rod penetrating rings (4), the rod penetrating rings (4) are fixedly connected to the rear side wall of the retaining frame (3), and a reinforcing rod (5) is arranged on each row of rod penetrating rings (4). The top of the support base (1) is symmetrically and fixedly connected with two internal thread sleeves (17) corresponding to the reinforcing rod (5).

2. The combined support structure for building foundation pit support according to claim 1, characterized in that: The reinforcing rod (5) comprises a rod portion (502), the rod portion (502) is movably arranged on the corresponding rod penetrating ring (4), the bottom end of the rod portion (502) is fixedly connected with a threaded portion (501), the inner side of the top end of the rod portion (502) is provided with an internal thread (504), and the outer side of the upper portion of the rod portion (502) is fixedly provided with an external hexagonal portion (503).

3. The combined support structure for building foundation pit support according to claim 1, characterized in that: A plurality of second fixing stakes (11) are movably arranged on the support base (1).

4. The combined support structure for building foundation support according to claim 3, characterized in that: The top of the support base (1) is fixedly connected with a fixed vertical rod (2), the rear side plate of the fixed vertical rod (2) is hingedly connected with a hinge rod (8), one end of the hinge rod (8) away from the fixed vertical rod (2) is hingedly connected with a fixed block (9), and a plurality of first fixing stakes (10) are movably arranged on the fixed block (9).

5. The combined support structure for building foundation support according to claim 1, characterized in that: The bottom surface of the support base (1) is an arc surface.

6. The combined support structure for building foundation support according to claim 1, characterized in that: Two closing grooves (7) are symmetrically arranged on the rear side walls of the two ends of the support base (1), the closing grooves (7) are provided with locking blocks (12), the locking blocks (12) are in the shape of a horizontal "8", and the two ends of the locking blocks (12) are inserted into the two adjacent closing grooves (7) respectively.

7. A composite support structure for building foundation pit support according to claim 6, characterized in that: A pull handle (14) is fixedly connected to the rear side plate of the locking block (12), two screws (15) are movably arranged on the two sides of the pull handle (14), and a threaded hole (13) corresponding to the screw (15) is arranged on the rear side wall of the support base (1), one end of the screw (15) is inserted into the threaded hole (13) and is threadedly connected with the threaded hole (13).

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