Device for preventing hole wall of large-diameter rotary drilling pile from collapsing in geology prone to collapsing
By installing abutment plates and pressure components inside the pile hole, the problem of loosening and collapse of the inner wall of large-diameter pile holes in easily collapsible geological conditions was solved, the stability of the pile hole was achieved, construction was ensured to proceed continuously, and construction efficiency was improved.
Patent Information
- Application Number
- CN202520171514.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-24
AI Technical Summary
After excavating large-diameter pile holes in easily collapsible geological areas, the inner wall of the pile hole is prone to loosening, leading to collapse and affecting the construction period.
A device for preventing borehole wall collapse in large-diameter rotary drilling piles in easily collapsible geological conditions is adopted. By placing abutment plates and pressure components inside a cylinder, and utilizing the meshing and thread matching of a synchronous belt and a through rod, the abutment plates can be extended and their curvature adjusted to secure the inner wall of the pile hole and prevent collapse.
It effectively prevents the collapse of the inner wall of the pile hole, ensures continuous construction, reduces cleaning time, and improves construction efficiency.
Smart Images
Figure CN223853323U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pile hole technical field, specifically, relates to a big diameter rotary digging pile hole wall collapse prevention device of easy collapse geology. BACKGROUND
[0002] Pile hole refers to the pit that builds ground or pier on the ground.
[0003] But the existing pile hole excavation, if is in easy collapse geology on big diameter pile hole excavation, after excavating, pours before, the inner wall of pile hole is easy to have the loose falling of soil and produces collapse, thereby influences the follow -up construction, leads to the influence construction period. UTILITY MODEL CONTENT
[0004] The utility model discloses a big diameter rotary digging pile hole wall collapse prevention device of easy collapse geology, solveed in easy collapse geology in excavating out pile hole, pours before, the inner wall is easy to have the loose soil of causing collapse, therefore needs to clean again can continue construction, influence construction period.
[0005] The utility model discloses the following technical scheme realizes:
[0006] The utility model provides a big diameter rotary digging pile hole wall collapse prevention device of easy collapse geology, including pile hole, the middle part of pile hole is connected with the placement cylinder, and the inner wall of placement cylinder is provided with connecting groove, and the top opening of connecting groove is connected with control disc, and the middle part of connecting groove is provided with through -hole, and the middle part of connecting groove is connected with synchronous belt, and the middle part of through -hole is connected with through -rod, and one end of through -rod is provided with abutting plate, and through -rod removes and is provided with pressure assembly, and through -rod is connected with abutting plate through pressure assembly, and pressure assembly slides along abutting plate one side.
[0007] Preferably, the bottom of the control disc is engaged with the top tooth mark of the synchronous belt, and the side wall of the through-rod is engaged with the tooth mark on one side of the synchronous belt.
[0008] Preferably, the part of the side wall of the through-rod protruding from the inner wall of the placement cylinder is a tooth mark engaged with the synchronous belt, and the other part of the through-rod except the tooth mark is threadedly matched with the inner wall of the through-hole.
[0009] Preferably, the pressure assembly comprises a deflection rod connected to one end of the through-rod.
[0010] Preferably, the deflection rod is a rod body hingedly connected to both sides of one end of the through-rod.
[0011] Preferably, the abutting plate comprises a sliding groove, which is a groove provided on one side of the abutting plate, and the sliding grooves are respectively provided near the two ends on one side of the abutting plate.
[0012] The sliding groove is connected with one end of the deflection rod, and the deflection rod is provided with a round shaft on the upper and lower sides of the end away from the penetrating rod, and the sliding groove is provided with a groove on the upper and lower sides of the middle part of the sliding groove.
[0013] The technical scheme of the utility model has at least the following advantages and beneficial effects:
[0014] 1. The extension of the abutting plate in the placing cylinder is abutted to the inner wall of the pile hole with different diameters, so as to abut and press the inner wall of the pile hole and prevent the pile hole from collapsing.
[0015] 2. The device is also provided with a pressing assembly, which can continue to press when the abutting plate is abutted to the pile hole with different diameters, so as to separate the pressing assembly and deform the two sides of the abutting plate by force, so as to cooperate with the pile hole with different diameters. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is a whole structure schematic view of the utility model.
[0017] Fig. 2 It is a front view structure schematic view of the connecting groove of the utility model.
[0018] Fig. 3 It is a top view structure schematic view of the utility model.
[0019] Reference signs: 1-pile hole, 2-placing cylinder, 201-connecting groove, 2011-control disc, 2012-penetrating hole, 2013-synchronous belt, 202-penetrating rod, 2021-abutting plate, 2022-sliding groove, 2023-deflection rod. DETAILED DESCRIPTION
[0020] The utility model will be described in detail below. Figs. 1 to 3 The utility model will be described in detail below.
[0021] The utility model provides a kind of collapsible geology large-diameter rotary digging pile hole wall collapse prevention device, including pile hole 1, the middle part of pile hole 1 is connected with placing cylinder 2, the inner wall of placing cylinder 2 is provided with connecting groove 201, the top opening of connecting groove 201 is connected with control disc 2011, the middle part of connecting groove 201 is provided with through hole 2012, connecting groove 201 is connected with synchronous belt 2013, the middle part of through hole 2012 is connected with through rod 202, one end of through rod 202 is provided with abutting plate 2021, through rod 202 is movably provided with pressure assembly, through rod 202 is connected with abutting plate 2021 by pressure assembly, pressure assembly slides along the side of abutting plate 2021, the bottom of control disc 2011 is engaged with the top tooth mark of synchronous belt 2013, the side tooth mark of synchronous belt 2013 is engaged with the side wall of through rod 202, the part of the side wall of through rod 202, which protrudes from one end of the inner wall of placing cylinder 2, is tooth mark engaged with synchronous belt 2013, and the other part of through rod 202, except the tooth mark, is threadedly matched with the inner wall of through hole 2012.
[0022] First, after rotary digging pile hole 1, placing cylinder 2 is placed into pile hole 1, then through the force exertion and rotation of control disc 2011, synchronous belt 2013 is driven to operate, after synchronous belt 2013 starts to operate, the through rod 202 engaged on one side also starts to rotate, because only the side wall part of through rod 202, which protrudes from one end of the inner wall of placing cylinder 2, is provided with tooth mark, the rest part is threadedly matched with the inner wall of through hole 2012, so that when the tooth mark part of through rod 202 is driven to rotate by synchronous belt 2013, the whole through rod 202 will displace along through hole 2012 through the threaded part, so as to drive abutting plate 2021 to extend and move outward, so that abutting plate 2021 can abut tightly to the inner wall of pile hole 1 with different diameters, to prevent collapse in pile hole 1.
[0023] Further, the pressure assembly includes deflection rod 2023, which is connected to one end of the through rod 202. The deflection rod 2023 is a rod body hingedly connected to both sides of one end of the through rod 202. The abutting plate 2021 includes a sliding groove 2022, which is a recess provided on one side of the abutting plate 2021. The sliding groove 2022 is provided on both sides near the two ends of the abutting plate 2021. The sliding groove 2022 is connected to one end of the deflection rod 2023. The deflection rod 2023 has a circular shaft on both sides of the end away from the through rod 202. The sliding groove 2022 has recesses on both sides of the middle part, which are matched with the protrusions of the circular shaft on one end of the deflection rod 2023.
[0024] When the abutting plate 2021 abuts against the inner wall of the pile hole 1 due to the displacement of the through hole 2012, if the curvature does not match the curvature of the inner wall of the pile hole 1, the two deflection rods 2023 connected to the abutting plate 2021 can be forced to separate and deflect to the two sides to displace along the sliding groove 2022 by continuing to control the displacement of the through rod 202. When moving, the parts near the two sides of the abutting plate 2021 can be forced to deform due to the pressure of abutting, so that the curvature is changed to better fit the inner wall of the different pile holes 1. Due to the limitation of the sliding groove 2022, the two deflection rods 2023 are initially separated by a certain distance, so that they can better separate and deflect under pressure.
[0025] The specific implementation process of the utility model is as follows. First, after the rotary excavated pile hole 1 is formed, the placement cylinder 2 is placed in the pile hole 1, and then the control panel 2011 is rotated by applying force to drive the synchronous belt 2013 to operate. After the synchronous belt 2013 starts to operate, the through rod 202 meshed on one side also starts to rotate. Because only the side wall part of the through rod 202 protruding in the inner wall of the placement cylinder 2 is provided with tooth marks, the remaining part matches the threads in the inner wall of the through hole 2012, so that when the tooth mark part of the through rod 202 is rotated by the synchronous belt 2013, the entire through rod 202 can displace along the through hole 2012 through the threaded part, thereby driving the abutting plate 2021 to extend outward to move, so that the abutting plate 2021 can abut against the inner wall of the pile hole 1 with different diameters to prevent collapse in the pile hole 1. When the abutting plate 2021 abuts against the inner wall of the pile hole 1 due to the displacement of the through hole 2012, if the curvature does not match the curvature of the inner wall of the pile hole 1, the two deflection rods 2023 connected to the abutting plate 2021 can be forced to separate and deflect to the two sides to displace along the sliding groove 2022 by continuing to control the displacement of the through rod 202. When moving, the parts near the two sides of the abutting plate 2021 can be forced to deform due to the pressure of abutting, so that the curvature is changed to better fit the inner wall of the different pile holes 1. Due to the limitation of the sliding groove 2022, the two deflection rods 2023 are initially separated by a certain distance, so that they can better separate and deflect under pressure.
Claims
1. A large-diameter rotary excavated pile with collapsible geology hole wall collapse prevention device, comprising a pile hole (1), characterized in that, The middle part of the pile hole (1) is connected with a placing cylinder (2), the inner wall of the placing cylinder (2) is provided with a connecting groove (201), the top opening of the connecting groove (201) is connected with a control disc (2011), the middle part of the connecting groove (201) is provided with a through hole (2012), the middle part of the connecting groove (201) is connected with a synchronous belt (2013), the through hole (2012) is connected with a through rod (202), one end of the through rod (202) is provided with an abutting plate (2021), the through rod (202) is movably provided with a pressing assembly, the through rod (202) is connected with the abutting plate (2021) through the pressing assembly, and the pressing assembly slides along one side of the abutting plate (2021).
2. The device according to claim 1, wherein the bottom of the control disc (2011) is engaged with the top tooth trace of the synchronous belt (2013), and the side wall of the through rod (202) is engaged with the tooth trace on one side of the synchronous belt (2013).
3. The device according to claim 1, wherein the part of the side wall of the through rod (202) protruding from one end of the inner wall of the placing cylinder (2) is a tooth trace engaged with the synchronous belt (2013), and the other part of the through rod (202) is threadedly matched with the inner wall of the through hole (2012).
4. The device according to claim 1, wherein the pressing assembly comprises a deflection rod (2023) connected to one end of the through rod (202).
5. The device according to claim 4, wherein the deflection rod (2023) is a rod body hingedly connected to both sides of one end of the through rod (202).
6. The device according to claim 1, wherein the abutting plate (2021) comprises sliding grooves (2022), the sliding grooves (2022) are recesses provided on one side of the abutting plate (2021), and the sliding grooves (2022) are respectively provided near both ends of one side of the abutting plate (2021).
7. The device according to claim 6, wherein the sliding grooves (2022) are connected with one end of the deflection rod (2023), the deflection rod (2023) is provided with a circular shaft on both sides of the end away from the through rod (202), and the sliding grooves (2022) are provided with recesses on both sides of the middle part and matched with the protrusions of the circular shaft on one end of the deflection rod (2023).