Supporting device for building pit foundation

Abstract

The utility model relates to the technical field of pit foundation supporting, in particular to a supporting device for a building pit foundation, which comprises two protection plates, two bases are fixedly connected to the bottoms of the protection plates, the number of the protection plates and the number of the bases are both two, and the two protection plates and the bases are arranged in a mirror image mode. The sides, close to each other, of the two protection plates are each fixedly connected with two symmetrically-arranged mounting blocks, inserting grooves are formed in the surfaces of the mounting blocks, and sliding grooves are formed in the surfaces of the mounting blocks. According to the scheme, modular design is adopted, mass production is facilitated, the production cost of the supporting device is reduced, after the supporting device is used, the supporting device can be rapidly disassembled and can be continuously used conveniently, and the service life of the supporting device is prolonged; and the supporting plate is adopted to stably support the supporting rod, the force borne by the supporting rod is effectively dispersed, it is ensured that the supporting rod is in a stable state, and stable use of the supporting device is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to pit foundation support technical field especially relates to a support device for building pit foundation. BACKGROUND

[0002] Building foundation pit support is to ensure the safety of underground structure construction and the surrounding environment of foundation pit, the supporting, reinforcing and protecting measures adopted for the side wall and surrounding environment of foundation pit, from the supporting type, there are row pile support, like the support structure formed by the arrangement of concrete cast-in-place pile, the crown beam can be connected between piles, this support form has larger rigidity, and is suitable for deeper foundation pit; there is also soil nailing support, which reinforces the slope through the friction between soil nailing and soil body, is convenient for construction and has lower cost, and is often used in foundation pit with lower underground water level, from the function, it can prevent the collapse of foundation pit slope, ensure the safety of construction personnel in pit and the smooth progress of construction, and can control the deformation of surrounding soil body of foundation pit, avoid the damage to the surrounding environment such as adjacent buildings and underground pipelines.

[0003] The prior art such as the utility model with publication number CN216664155U discloses a foundation pit support device for building construction, and belongs to the field of foundation pit support. A foundation pit support device for building construction, comprising two protective plates, the bottom of the protective plate is provided with a base, the top of the base is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a sliding block, the inner side of the protective plate is fixedly provided with a support plate, the top of the support plate is fixedly provided with a connecting plate, a two-way threaded rod is arranged between the two protective plates, the outer surface of the two-way threaded rod is fixedly provided with a fixing ring, the circumferential outer wall of the fixing ring is annularly fixedly provided with a plurality of rotating handles, the rotating handles drive the threaded cylinder and the connecting plate to move, so that the two protective plates are synchronously and reversely moved, the inner wall of the foundation pit is extruded and supported, the stability of the support is improved through the reverse extrusion of the two protective plates on both sides of the inner wall of the foundation pit, and the installation speed is also improved, which is convenient for the loosening of the protective plate in the later period and timely reinforcement through the rotation of the rotating handle.

[0004] At present, most building foundation pit support devices use two-way threaded rods and threaded cylinders to support the support device, but the two-way threaded rods are prone to deformation under stress in use, which causes the inclination of the support device and certain safety hazards, and is not conducive to the normal use of the building foundation pit support device, so improvement is needed. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings that most building foundation pit support devices use two-way threaded rods and threaded cylinders to support the support device in use, but the two-way threaded rods are prone to deformation under stress in use, which causes the inclination of the support device and certain safety hazards, and is not conducive to the normal use of the building foundation pit support device, and proposes a support device for building pit foundation.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: A support device for building pit foundation, including the fender, the bottom of fender is fixedly connected with base, the number of fender and base is two, two fender and base are mirror image setting, two fender are fixedly connected with two symmetrical installation blocks on the side of each other, the surface of installation block is provided with slot, the surface of installation block is provided with sliding slot, the sliding slot is communicated with slot, the limit plate is inserted in the slot, the limit plate is fixedly connected with screw rod on one side, one end of screw rod penetrates sliding slot, two screw rods are threadedly sleeved with support rod on the end of each other, this scheme adopts modular design, and it is convenient for mass production, reduces the production cost of support device, can be quickly disassembled after using support device, is convenient for continuous use, improves the service life of support device, and simultaneously, the scheme adopts two groups of support rods to support fender, and adopts support plate to stably support support rod, effectively disperses the force that support rod bears, ensures that support rod is in stable state, and is convenient for the stable use of support device.

[0007] Preferably, the upper portion of the base is provided with a support plate, the surface of the support plate is provided with a sleeve hole, and one end of the support rod is slidably connected with the inner wall of the sleeve hole.

[0008] Preferably, the surface of the support plate is provided with a threaded hole, a fastening bolt is threadedly connected in the threaded hole, the upper surface of the base is provided with a mounting hole, and one end of the fastening bolt is threadedly inserted into the mounting hole. When the support device is disassembled, only the fastening bolt needs to be loosened, and the support rod is pulled up to drive the limit plate and the screw rod away from the installation block. Then, the two fenders can be removed.

[0009] Preferably, the number of support plates is four, and the four support plates are mirror image arranged. The support plate is L-shaped, and the upper end of the support plate is arc-shaped. When in use, the two fenders are placed in the foundation pit, the distance between the two fenders is measured, and two support rods with corresponding lengths are selected. The two oppositely arranged support plates are sleeved on the support rods, the two ends of the support rods are threadedly inserted into the screw rods, and the limit plate is inserted into the slot. The excess screw rod passes through the sliding slot. At this time, the two ends of the support rod are stably supported on the installation block, the support rod is pressed downward to drive the lower end of the support plate to be supported on the base, the fastening bolt is threadedly inserted into the threaded hole, and the fastening bolt is continuously rotated. The fastening bolt is threadedly inserted into the mounting hole, and the fender is stably supported.

[0010] Preferably, the upper surface of the base is fixedly connected with a reinforcing rod, and the upper end of the reinforcing rod is fixedly connected with the surface of the fender. The reinforcing rod can stably support the fender and the base.

[0011] Preferably, there are multiple reinforcing rods, and the multiple reinforcing rods are arranged at equal intervals.

[0012] Preferably, the support rods are placed horizontally, and there are two support rods arranged symmetrically between them to ensure stable use of the support device.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] In this invention, during use, two protective plates are placed in the foundation pit. The distance between the two protective plates is then measured, and two support rods of corresponding lengths are selected. First, the two opposing support plates are fitted onto the support rods. Then, both ends of the support rods are threaded into screws, and the limiting plate is inserted into the slot. Excess screws pass through the sliding groove. At this point, both ends of the support rods are stably pressed against the mounting block. Pressing down on the support rods causes the lower ends of the support plates to press against the base. Then, the fastening bolts are threaded into the threaded holes, and continued rotation of the fastening bolts ensures they are threaded into the mounting holes, effectively stabilizing the protective plates. When disassembling the support device, simply loosen the fastening bolts and pull the support rod up and down to detach the limit plate and screw from the mounting block. Then, the two protective plates can be removed. This solution adopts a modular design, which is convenient for mass production and reduces the production cost of the support device. After the support device has been used, it can be quickly disassembled for continued use and to extend its service life. At the same time, this solution uses two sets of support rods to support the protective plates and support plates to stabilize the support rods, effectively dispersing the force on the support rods and ensuring that the support rods are in a stable state, which facilitates the stable use of the support device. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of a support device for building pit foundations;

[0016] Figure 2 A bottom view structural diagram of a support device for building pit foundation is provided for this utility model;

[0017] Figure 3 An exploded structural diagram of a support device for building pit foundation is provided for this utility model.

[0018] Figure 4 This utility model proposes a support device for building pit foundations. Figure 3 A schematic diagram of the structure at point A;

[0019] Figure 5 This utility model proposes a support device for building pit foundations. Figure 3 A schematic diagram of the structure at point B.

[0020] Legend:

[0021] 1, the protective plate; 2, the base; 3, the mounting block; 4, the reinforcing rod; 5, the support rod; 6, the support plate; 7, the slot; 8, the sliding groove; 9, the mounting hole; 10, the sleeve hole; 11, the screw rod; 12, the limiting plate; 13, the fastening bolt; 14, the threaded hole. DETAILED DESCRIPTION

[0022] Please refer to Figures 1-5 The utility model provides a technical scheme: a supporting device for building pit foundation, including protective plate 1, the bottom fixedly connected with base 2 of protective plate 1, the number of protective plate 1 and base 2 is two, two protective plate 1 and base 2 are mirror image and set up between, two protective plate 1 are fixedly connected with two symmetrically arranged mounting blocks 3 on the side close to each other, the surface of mounting block 3 is provided with slot 7, the surface of mounting block 3 is provided with sliding groove 8, and sliding groove 8 is communicated with slot 7, limiting plate 12 is inserted in slot 7, one side of limiting plate 12 is fixedly connected with screw rod 11, one end of screw rod 11 penetrates sliding groove 8, and the end close to each other of two screw rods 11 is all screw set with support rod 5, and this scheme adopts modularization design, is convenient for mass production, reduces the production cost of supporting device, after using supporting device, can be quickly disassembled, facilitates continued use, improves the service life of supporting device, and simultaneously this scheme adopts two groups of support rod 5 and supports protective plate 1, and adopts support plate 6 and supports support rod 5, effectively disperses the force that support rod 5 receives, ensures that support rod 5 is in stable state, and is convenient for the stable use of supporting device.

[0023] Specifically, the upper portion of the base 2 is provided with a support plate 6, and the surface of the support plate 6 is provided with a sleeve hole 10. One end of the support rod 5 is in sliding connection with the inner wall of the sleeve hole 10.

[0024] In this embodiment, the surface of the support plate 6 is provided with a threaded hole 14, and the threaded hole 14 is in threaded connection with a fastening bolt 13. The upper surface of the base 2 is provided with a mounting hole 9, and one end of the fastening bolt 13 is in threaded connection with the mounting hole 9. When the supporting device is disassembled, the fastening bolt 13 is only loosened, and the support rod 5 is pulled up to drive the limiting plate 12 and the screw rod 11 to be separated from the mounting block 3. Then, the two protective plates 1 can be removed.

[0025] In the embodiment, the number of the support plates 6 is four, the four support plates 6 are mirror image arranged, the support plates 6 are L-shaped, the upper end of the support plate 6 is arc-shaped, in use, two protective plates 1 are placed in the foundation pit, then the distance between the two protective plates 1 is measured, two corresponding length support rods 5 are selected, two reverse arranged support plates 6 are sleeved on the support rod 5, then the two ends of the support rod 5 are screwed into the screw rod 11, the limiting plate 12 is inserted into the insertion slot 7, the excess screw rod 11 passes through the sliding groove 8, at this time, the two ends of the support rod 5 are stably supported on the mounting block 3, the support rod 5 is pressed downward to drive the lower end of the support plate 6 to be supported on the base 2, then the fastening bolt 13 is screwed into the threaded hole 14, the fastening bolt 13 is continuously rotated, the fastening bolt 13 is screwed into the mounting hole 9, and the protective plate 1 is effectively and stably supported.

[0026] Specifically, the upper surface of the base 2 is fixedly connected with the reinforcing rods 4, the upper end of the reinforcing rod 4 is fixedly connected with the surface of the protective plate 1, and the protective plate 1 and the base 2 can be stably supported through the reinforcing rod 4.

[0027] Specifically, the number of the reinforcing rods 4 is multiple, and the multiple reinforcing rods 4 are equally spaced.

[0028] Specifically, the support rod 5 is horizontally placed, the number of the support rod 5 is two, and the two support rods 5 are symmetrically arranged to ensure that the supporting device is stably used.

[0029] Working principle: in use, two protective plates 1 are placed in the foundation pit, then the distance between the two protective plates 1 is measured, two corresponding length support rods 5 are selected, two reverse arranged support plates 6 are sleeved on the support rod 5, then the two ends of the support rod 5 are screwed into the screw rod 11, the limiting plate 12 is inserted into the insertion slot 7, the excess screw rod 11 passes through the sliding groove 8, at this time, the two ends of the support rod 5 are stably supported on the mounting block 3, the support rod 5 is pressed downward to drive the lower end of the support plate 6 to be supported on the base 2, then the fastening bolt 13 is screwed into the threaded hole 14, the fastening bolt 13 is continuously rotated, the fastening bolt 13 is screwed into the mounting hole 9, and the protective plate 1 is effectively and stably supported, when the supporting device is disassembled, only the fastening bolt 13 is loosened, and the limiting plate 12 and the screw rod 11 are pulled up and down to drive the mounting block 3, then the two protective plates 1 can be removed, the present scheme adopts modular design, is convenient for mass production, reduces the production cost of the supporting device, after the supporting device is used, it can be quickly disassembled, is convenient for continuous use, improves the service life of the supporting device, at the same time, the present scheme adopts two groups of support rods 5 to support the protective plate 1, and adopts the support plate 6 to stably support the support rod 5, effectively disperses the force borne by the support rod 5, ensures that the support rod 5 is in a stable state, and is convenient for stable use of the supporting device.

Claims

1. A supporting device for building pit foundation, comprising a protection plate (1), the bottom of the protection plate (1) is fixedly connected with a base (2), characterized in that: The number of the protection plate (1) and the base (2) is two, two said protection plate (1) and the base (2) are mirror image, two said protection plate (1) are fixedly connected with two symmetrically arranged mounting blocks (3) on the side close to each other, the surface of the mounting block (3) is provided with a slot (7), the surface of the mounting block (3) is provided with a sliding groove (8), the sliding groove (8) is communicated with the slot (7), the slot (7) is provided with a limiting plate (12), one side of the limiting plate (12) is fixedly connected with a screw rod (11), one end of the screw rod (11) penetrates the sliding groove (8), two said screw rod (11) are threadedly connected with a supporting rod (5) on the side close to each other.

2. A support device for building foundations as claimed in claim 1, characterised in that: The upper side of the base (2) is provided with a supporting plate (6), the surface of the supporting plate (6) is provided with a sleeve hole (10), one end of the supporting rod (5) is in sliding connection with the inner wall of the sleeve hole (10).

3. A support device for building foundations as claimed in claim 2, wherein: The surface of the supporting plate (6) is provided with a threaded hole (14), the threaded hole (14) is in threaded connection with a fastening bolt (13), the upper surface of the base (2) is provided with a mounting hole (9), one end of the fastening bolt (13) is in threaded connection with the mounting hole (9).

4. A support device for building foundations according to claim 2, characterised in that: The number of the supporting plate (6) is four, four said supporting plate (6) are mirror image, the supporting plate (6) is L-shaped, the upper end of the supporting plate (6) is arc-shaped.

5. A support device for building foundations according to claim 1, characterized in that: The upper surface of the base (2) is fixedly connected with a reinforcing rod (4), the upper end of the reinforcing rod (4) is fixedly connected with the surface of the protection plate (1).

6. A support device for building foundations according to claim 5, characterised in that: The number of the reinforcing rod (4) is multiple, multiple said reinforcing rod (4) are equidistantly arranged.

7. A support device for building foundations according to claim 1, characterized in that: The supporting rod (5) is horizontally placed, the number of the supporting rod (5) is two, two said supporting rod (5) are symmetrically arranged.

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