Tool type orifice protection device

Abstract

The utility model relates to the technical field of pile foundation construction, in particular to a tool type orifice protection device which comprises a reinforcing ring, a plurality of wall protection pipe columns and fixing parts, the wall protection pipe columns are evenly distributed in the circumferential direction of a drilling pile hole, the wall protection pipe columns are vertically arranged in the drilling pile hole and abut against the hole wall of the drilling pile hole, and the reinforcing ring is detachably connected to the wall protection pipe columns. The reinforcing ring is horizontally arranged in a surrounding area formed by the wall protecting pipe columns, and the fixing pieces are used for connecting and fixing the reinforcing ring and the wall protecting pipe columns; the arranged tool type orifice protection device can be tightly attached to the hole wall in the wet and soft soil layer through the synergistic effect of the multiple protection wall pipe columns and the reinforcing rings, it is avoided that a gap is formed between a protection wall and the hole wall, orifice hole shrinkage of the wet and soft soil layer is effectively prevented, and the service life of the hole is prolonged. And the application range of the orifice protection device to different geological conditions and construction environments is widened.

Description

Technical Field

[0001] The present application relates to the technical field of pile foundation construction, and in particular to a tool-type hole protection device. Background Art

[0002] During the construction of pile foundation, the geological conditions in some areas are relatively complex, and there are soft or plastic soil layers in some local strata. These soft strata are easily affected by the soil pressure during the drilling process, and squeezed into the hole to form shrinkage holes. Shrinkage holes will not only affect the construction progress, but may also cause the pile hole diameter to become smaller, the pile body quality to decline, and pose a potential threat to the quality and stability of the pile foundation. Therefore, in order to prevent quality problems caused by shrinkage holes, a hole mouth protection device is needed to ensure the stability and integrity of the hole mouth.

[0003] The prior art discloses a supporting and protecting device for bored piles, comprising a drill rod, a drill bit is provided at the lower end of the drill rod, an adjusting disk located at the upper end of the drill bit is rotatably connected to the drill rod, and four centrally symmetrical carrying devices are provided on the adjusting disk, wherein an array-distributed anti-falling plate device is slidably connected in each carrying device, and the anti-falling plate device can be combined to form a centrally symmetrical and mutually abutting structure, a guide rail device is provided on the lower end surface of the adjusting disk, a valve body box located at the lower end of the adjusting disk is rotatably connected to the drill rod, a mounting cavity with an opening upward is provided in the valve body box, and four centrally symmetrical cross beams are provided in the mounting cavity, a slide groove slidably connected to the guide rail device is provided on the cross beam, a one-way coupling device rotatably connected to the drill rod is provided on the cross beam, and the one-way coupling device enables the device to have only one-way rotation working ability, and four stay grooves symmetrical about the center of the mounting cavity are provided in the cross beam, wherein the opening of the stay groove is away from one side of the symmetry center and upward, and the positions between the stay groove and the carrying device are staggered, and an ejection device controlled by the guide rail device is slidably connected in the stay groove, and the ejection device can combine and install the anti-falling plate device.

[0004] With respect to the above-mentioned related technologies, each carrying device is slidably connected with an array-distributed anti-fall plate device. These anti-fall plate devices can be combined to form a centrally symmetrical and mutually abutting structure, thereby forming a complete protective layer, which can effectively prevent the hole wall from collapsing and shrinking due to the loose soil of the sandy covering layer. However, due to the strong fluidity of the soft soil layer, the anti-fall plate device in the prior art may not be able to fit tightly against the hole wall, thereby forming a gap between the protective wall and the hole wall, weakening the protective effect, causing the hole mouth protection device to be unable to effectively prevent the hole mouth from shrinking in the soft soil layer, affecting the scope of application of the hole mouth protection device. Utility Model Content

[0005] In order to improve the application scope of the orifice protection device, the present application provides a tool-type orifice protection device.

[0006] The tool-type orifice protection device provided in this application adopts the following technical solution:

[0007] A tool-type hole protection device comprises a reinforcement ring, a plurality of wall protection columns and a fixing piece;

[0008] A plurality of said wall protection pipe columns are evenly distributed along the circumferential direction of the pile hole, and said wall protection pipe columns are vertically arranged in the pile hole and abut against the wall of the pile hole;

[0009] The reinforcement ring is detachably connected to the wall protection column, and the reinforcement ring is horizontally arranged in an enclosed area formed by a plurality of the wall protection columns;

[0010] The fixing piece is used to connect and fix the reinforcement ring and the wall protection column.

[0011] By adopting the above technical scheme, after the pile hole is formed, firstly, multiple wall protection pipes are placed vertically and evenly into the hole along the circumferential direction of the hole, and it is ensured that the wall protection pipes are in close contact with the hole wall, then, the reinforcement ring is placed in the enclosed area formed by the wall protection pipes, and the reinforcement ring and the wall protection pipes are connected and fixed by fixing parts; the tool-type hole mouth protection device is convenient for ensuring that the protection device can fit closely to the hole wall in the soft soil layer through the coordinated action of multiple wall protection pipes and the reinforcement ring, avoiding the formation of a gap between the wall protection and the hole wall, effectively preventing the hole mouth shrinkage in the soft soil layer, and improving the applicability of the hole mouth protection device to different geological conditions and construction environments.

[0012] Preferably, a plurality of the reinforcement rings are provided, and the plurality of reinforcement rings are evenly distributed along the length direction of the wall protection column.

[0013] By adopting the above technical solution, the setting of multiple reinforcement rings enables the entire protective device to be evenly supported and reinforced in the length direction, which is beneficial to enhancing the overall stability of the device, preventing the hole deformation or shrinkage caused by the fluidity of the soft soil layer, and ensuring that all positions of the hole mouth can be fully protected. Even under complex geological conditions such as soft soil layers, the close fit between the protective device and the hole wall can be guaranteed, effectively preventing the hole mouth from shrinking and collapsing; the set reinforcement rings can also reduce the stress burden of the wall protection pipe column, reduce the risk of deformation or damage due to long-term stress, and extend the service life of the wall protection pipe column.

[0014] Preferably, the reinforcement ring is arranged in a circular ring shape or a polygonal shape.

[0015] By adopting the above technical solution, the circular or polygonal reinforcement ring can fit tightly in the enclosed area formed by multiple wall protection pipe columns to form a stable and continuous support structure, which is conducive to reducing stress concentration, improving the adaptability of the protective device to bored pile holes of different shapes and sizes and the overall stability and durability of the device, thereby improving the protective effect.

[0016] Preferably, the fixing member comprises an H-shaped buckle;

[0017] A hanging slot is provided on the inner wall of the wall protection column, one side of the upper opening of the J-shaped buckle is clamped with the reinforcement ring, and the lower opening of the J-shaped buckle is hung on the inner wall of the wall protection column through the hanging slot.

[0018] By adopting the above technical solution, the J-shaped buckle makes the installation process of the reinforcement ring simple and quick. The operator only needs to connect the upper opening side of the J-shaped buckle with the reinforcement ring, and then hang the lower opening on the inner wall of the wall protection pipe column through the hanging groove to complete the fixation, which is beneficial to reduce the difficulty of installation and improve construction efficiency; the coordinated hanging of the J-shaped buckle and the hanging groove enables the reinforcement ring to be firmly fixed on the wall protection pipe column, which is not easy to loosen or fall off, which is beneficial to ensure that the protective device can continue to effectively play a supporting and protective role during use.

[0019] Preferably, a limiting groove for fixing the H-shaped buckle is provided on the reinforcement ring, and one side of the upper opening of the H-shaped buckle is snapped into the limiting groove.

[0020] By adopting the above technical solution, the set limit groove can fix the reinforcement ring on the J-shaped buckle more stably, effectively preventing the J-shaped buckle from loosening or falling off due to external force during use, which is conducive to reducing problems such as loose fixation or structural deformation caused by inaccurate installation position, thereby improving the stability and safety of the entire protective device.

[0021] Preferably, the wall protection pipe column is provided with two layers, and a connecting piece is provided at the connection between the two layers of the wall protection pipe column.

[0022] By adopting the above technical solution, setting up two layers of wall protection pipe columns can significantly increase the overall supporting capacity of the hole mouth to meet the requirements of pile drilling holes of different depths, so that the protective device is more stable when subjected to external forces such as soil pressure and water erosion; the setting of the connecting parts can ensure the tight connection between the two layers of wall protection pipe columns to prevent structural failure due to loosening or falling off.

[0023] Preferably, the connecting member comprises a hook, and the hook comprises an integrally arranged connecting section and two hanging sections, and the two hanging sections are respectively located at two ends of the connecting section.

[0024] The ends of the upper wall protection pipe column and the lower wall protection pipe column close to each other are both provided with hanging slots, and the two hanging sections are hung on the inner pipe walls of the upper wall protection pipe column and the lower wall protection pipe column through the hanging slots.

[0025] By adopting the above technical solution, the setting of the hook makes the connection process of the two layers of wall protection pipe columns simple and quick. The operator only needs to align the hanging sections with the hanging slots of the upper and lower wall protection pipe columns respectively, and then hang them in to complete the fixation; the two hanging sections of the hook are respectively hung on the inner pipe walls of the upper and lower wall protection pipe columns, which is convenient for ensuring the stability and reliability of the connection, and effectively preventing the connection from loosening or falling off due to external force, thereby ensuring the overall stability and safety of the protective device.

[0026] Preferably, two groups of the connecting members are provided, and the two groups of the connecting members are symmetrically distributed about the wall protection pipe column.

[0027] By adopting the above technical solution, two groups of symmetrically arranged connectors can provide more uniform supporting force for the wall protection pipe columns. The two groups of connectors act simultaneously, which can significantly improve the connection strength between the upper and lower layers of wall protection pipe columns and reduce structural deformation or distortion caused by external forces, thereby improving the overall stability of the protective device; the symmetrically distributed connectors can also evenly distribute the force on both sides of the wall protection pipe columns, avoiding damage caused by excessive local force, and improving the bearing capacity and service life of the protective device.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The tool-type hole mouth protection device is convenient for ensuring that the protection device can fit closely to the hole wall in the soft soil layer through the coordinated action of multiple retaining wall pipes and reinforcement rings, avoiding the formation of a gap between the retaining wall and the hole wall, effectively preventing the hole mouth from shrinking in the soft soil layer, and improving the applicability of the hole mouth protection device to different geological conditions and construction environments.

[0030] 2. The setting of multiple reinforcement rings enables the entire protective device to be evenly supported and reinforced in the length direction, which is beneficial to enhancing the overall stability of the device, preventing the hole deformation or shrinkage caused by the fluidity of the soft soil layer, and ensuring that all positions of the hole can be fully protected. Even under complex geological conditions such as soft soil layers, it can ensure the close fit between the protective device and the hole wall, effectively preventing the hole shrinkage and collapse.

[0031] 3. The coordinated connection between the H-shaped buckle and the hanging groove enables the reinforcement ring to be firmly fixed on the wall protection pipe column, which is not easy to loosen or fall off, which is conducive to ensuring that the protective device can continue to effectively play a supporting and protective role during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the tool-type orifice protection device according to an embodiment of the present application.

[0033] Figure 2It is a top view of the tool-type orifice protection device according to an embodiment of the present application.

[0034] Figure 3 It is a cross-sectional view of the tool-type orifice protection device according to an embodiment of the present application.

[0035] Figure 4 It is a schematic diagram of the partial structure of the tool-type orifice protection device of an embodiment of the present application.

[0036] Explanation of the reference numerals: 1. reinforcement ring; 11. limiting groove; 2. wall protection column; 21. hanging slot; 22. hanging slot hole; 3. fixing piece; 31. J-shaped buckle; 4. connecting piece; 41. hanging buckle; 411. connecting section; 412. hanging section. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-4 The present application is further described in detail as a tool-type orifice protection.

[0038] The embodiment of the present application discloses a tool-type orifice protection device.

[0039] Reference Figure 1 and Figure 2 A tool-type hole protection device includes a reinforcement ring 1, a plurality of wall protection columns 2, and a fixing member 3. The plurality of wall protection columns 2 are arranged in two layers, and a connecting member 4 is arranged between the upper and lower layers of the wall protection columns 2.

[0040] Reference Figure 1 and Figure 2 , multiple wall protection pipe columns 2 are evenly distributed along the circumferential direction of the bored pile hole, the wall protection pipe columns 2 are vertically arranged in the bored pile hole and the outer wall of the wall protection pipe columns 2 abuts against the wall of the bored pile hole. In this embodiment, the wall protection pipe columns 2 are in an arc-shaped tubular arrangement that fits the wall of the bored pile hole; the reinforcement ring 1 is detachably connected to the wall protection pipe column 2 through a fixing member 3, the reinforcement ring 1 is coaxially arranged with the bored pile hole and the reinforcement ring 1 is horizontally arranged in an enclosed area formed by multiple wall protection pipe columns 2, in this application, multiple reinforcement rings 1 are arranged, and multiple reinforcement rings 1 are evenly distributed along the length direction of the wall protection pipe columns 2, in this embodiment, three reinforcement rings 1 are arranged on each layer of wall protection pipe columns 2, and the three reinforcement rings 1 are evenly distributed along the length direction of the wall protection pipe columns 2, and the wall protection pipe columns 2 are made of flat iron sheets, in this application, the reinforcement ring 1 can be set as a circular ring or a polygon, and in order to improve the fixing effect, the reinforcement ring 1 is set in a circular ring shape in this embodiment.

[0041] Reference Figure 1-4The fixing part 3 includes an H-shaped buckle 31, and three hanging grooves 21 are opened on the side wall of the wall protection pipe column 2. The three hanging grooves 21 are respectively arranged close to the three reinforcement rings 1. The reinforcement ring 1 is inserted into the upper opening of the H-shaped buckle 31 and is clamped with the H-shaped buckle 31. The lower opening side of the H-shaped buckle 31 is hung on the inner pipe wall of the wall protection pipe column 2 through the hanging groove 21. In order to facilitate the H-shaped buckle 31 to be quickly withdrawn from the hanging groove 21, the length of the hanging groove 21 in the present application is greater than the length of the H-shaped buckle 31. In addition, in order to prevent the H-shaped buckle 31 from loosening or falling off due to external force during use, the bottom wall of the reinforcement ring 1 in the present application is also provided with a plurality of limit grooves 11 for clamping with the upper opening side of the H-shaped buckle 31, and the plurality of limit grooves 11 are evenly distributed along the circumferential direction of the reinforcement ring 1.

[0042] Reference Figure 1-4 The connecting piece 4 includes a hook 41, and the hook 41 includes an integrally arranged connecting section 411 and two hanging sections 412. The two hanging sections 412 are welded to the two ends of the connecting section 411. A hanging slot 22 is provided on the side wall on one side of the bottom end of the upper wall protection pipe column 2 and the side wall on the top side of the lower wall protection pipe column 2. The two hanging sections 412 are respectively hung on the inner pipe walls of the upper wall protection pipe column 2 and the lower wall protection pipe column 2 through the hanging slots 22. In this embodiment, the connecting section 411 of the hook 41 is vertically arranged, and the hanging section 412 located on the upper layer is inclined from high to low from one end close to the connecting section 411 to one end away from the connecting section 411. The hanging section 412 located on the lower layer is horizontally arranged. In this application, two groups of connecting pieces 4 are arranged, and the two groups of connecting pieces 4 are symmetrically distributed on both sides of the wall protection pipe column 2; after the pile hole is drilled, the bottom wall protection pipe column 2 is installed first. The pipe column 2, the reinforcement ring 1, and the fixing part 3 form the first section of the protection device. When installing the first section, four wall protection pipe columns 2 are installed symmetrically first, and then the reinforcement ring 1 is fixed on the four wall protection pipe columns 2 through the fixing part 3. The remaining wall protection pipe columns 2 are installed symmetrically at the positions of the limiting grooves 11 of the reinforcement ring 1 in turn. The second and third fixing rings are installed in turn from bottom to top, and then they are sunk into the protection hole. The second layer of wall protection pipe columns 2 are installed on the first layer of wall protection pipe columns 2 through the connecting part 4, and then the three reinforcement rings 1 are installed in turn. The number of layers of wall protection pipe columns 2 can be determined according to the geological conditions and the depth of the shrinkage hole. When the piles are formed to the protection section, the ones installed later are removed first according to the installation sequence. The reinforcement ring 1 is removed from the fixing part 3 first, and then removed from top to bottom. The dismantled devices are collected and classified according to materials and accessories, and are transferred to the next hole for installation and hole shrinkage protection is performed.

[0043] The implementation principle of a tool-type hole mouth protection device in an embodiment of the present application is as follows: after the pile hole is formed, firstly, multiple wall protection pipe columns 2 are vertically and evenly placed into the hole along the circumferential direction of the hole, and it is ensured that the wall protection pipe columns 2 are tightly abutted against the hole wall, then, the reinforcement ring 1 is placed in the enclosed area formed by the wall protection pipe columns 2, and the reinforcement ring 1 is connected and fixed to the wall protection pipe columns 2 using the fixing parts 3, and they are removed in sequence after use.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tool-type orifice protection device, characterized in that: It comprises a reinforcement ring (1), a plurality of wall protection pipe columns (2) and a fixing member (3); the plurality of wall protection pipe columns (2) are evenly distributed along the circumferential direction of the pile hole, and the wall protection pipe columns (2) are vertically arranged in the pile hole and abut against the wall of the pile hole; The reinforcement ring (1) is detachably connected to the wall protection pipe column (2), and the reinforcement ring (1) is horizontally arranged in an enclosed area formed by a plurality of the wall protection pipe columns (2); The fixing member (3) is used to connect and fix the reinforcement ring (1) and the wall protection column (2).

2. The tool-type orifice protection device according to claim 1, characterized in that: A plurality of the reinforcement rings (1) are provided, and the plurality of reinforcement rings (1) are evenly distributed along the length direction of the wall protection column (2).

3. The tool-type hole protection device according to claim 2, characterized in that: The reinforcement ring (1) is arranged in a circular ring shape or a polygonal shape.

4. The tool-type orifice protection device according to claim 1, characterized in that: The fixing member (3) comprises a J-shaped buckle (31); A hanging notch (21) is provided on the inner wall of the wall protection pipe column (2); one side of the upper opening of the J-shaped buckle (31) is clipped to the reinforcement ring (1); and the lower opening of the J-shaped buckle (31) is hung on the inner wall of the wall protection pipe column (2) through the hanging notch (21).

5. The tool-type hole protection device according to claim 4, characterized in that: The reinforcing ring (1) is provided with a limiting groove (11) for fixing the J-shaped buckle (31), and one side of the upper opening of the J-shaped buckle (31) is clamped in the limiting groove (11).

6. The tool-type orifice protection device according to claim 1, characterized in that: The wall protection pipe column (2) is provided with two layers, and a connecting piece (4) is provided at the connection between the two layers of the wall protection pipe column (2).

7. The tool-type hole protection device according to claim 6, characterized in that: The connecting member (4) comprises a hook (41), wherein the hook (41) comprises an integrally arranged connecting section (411) and two hanging sections (412), wherein the two hanging sections (412) are respectively located at two ends of the connecting section (411); The ends of the upper wall protection pipe column (2) and the lower wall protection pipe column (2) that are close to each other are each provided with a hanging slot hole (22), and the two hanging sections (412) are hung on the inner pipe walls of the upper wall protection pipe column (2) and the lower wall protection pipe column (2) through the hanging slot hole (22).

8. The tool-type hole protection device according to claim 7, characterized in that: The connecting members (4) are provided in two groups, and the two groups of connecting members (4) are symmetrically distributed with respect to the wall protection column (2).

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