Wall protecting structure of cast-in-place pile

Abstract

The utility model relates to a retaining wall structure of a cast-in-place pile, and aims to solve the technical problems that a steel sleeve retaining wall easily inclines or deviates after being placed and the quality of the cast-in-place pile is affected due to the fact that a current steel sleeve retaining wall is difficult to control to be coaxial with an artificial hole in a hoisting process. According to the manual hole buckle, through the limiting ring arranged on the manual hole buckle and the limiting plate arranged on the manual hole buckle, the limiting plate is controlled to rotate and then be attached to the protective wall of the steel sleeve in the process of pressing the limiting plate after the protective wall of the steel sleeve is hoisted and put into the manual hole buckle, and the protective wall of the steel sleeve is kept stable after being put into the manual hole; the coaxial placement of the steel sleeve protection wall and the artificial hole can be conveniently controlled; the control rod is rotated to drive the check block at the lower end of the control rod and the limiting rod to rotate in the control groove, the stacking stability of the multiple steel sleeve protection walls is further kept, meanwhile, under the action of the grip capable of being stored in the control rod, the rotating control rod is prevented from affecting stacking of the steel sleeve protection walls, and the stability of the steel sleeve protection walls is improved. And a plurality of dry steel sleeve retaining walls can be conveniently stacked and placed.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place pile wall protection, in particular to a cast-in-place pile wall protection structure. Background Art

[0002] A bored pile is a pile made by drilling in place and pouring concrete or reinforced concrete. It is widely used in construction because of its advantages of no vibration, no soil squeezing, low noise, and suitability for use in densely built urban areas. According to the different hole-forming processes, bored piles can be divided into bored piles with dry drilling, bored piles with mud wall protection, and bored piles with manual excavation. Among them, during the construction of manually excavated bored piles, manual work is performed underground. Therefore, effective measures must be taken to ensure the stability of the hole wall. Commonly used wall protection measures include cast-in-place concrete retaining rings, steel casings, and caissons.

[0003] The existing steel casing wall used in the manual bored pile is difficult to control the coaxiality with the manual hole during the installation, which easily leads to the tilt or offset of the steel casing wall after placement, affecting the production quality of the further bored pile. Therefore, it is particularly important to design a new steel casing wall that can determine the coaxiality with the manual hole. In view of this, we propose a wall structure for bored piles. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art, meet actual needs, and provide a wall protection structure for cast-in-place piles to solve the technical problem that the current steel casing wall protection is difficult to control the coaxiality with the artificial hole during installation, which easily leads to the tilt or deviation of the steel casing wall after placement, thus affecting the quality of the cast-in-place piles.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: to design a wall protection structure of a cast-in-place pile, including a steel casing wall protection, a limiting ring is arranged on the outer side of the steel casing wall protection, the upper surface of the limiting ring is fixedly connected with a fixed block, the inner surface of the fixed block is movably connected with a fixed shaft, the middle part of the outer surface of the fixed shaft is fixedly connected with a limiting plate, the lower surface of the limiting ring is fixedly connected with an insertion rod, and the inner wall of the limiting ring is provided with a fitting groove; the utility model fixes the limiting ring at the opening of the artificial hole by the insertion rod, and then hoists the steel casing wall protection to its lower end between the two limiting plates, and then places the steel casing wall protection under it so that it presses the lower edge of the limiting plate and makes the limiting plate vertically fit the outer wall of the steel casing wall protection to maintain the coaxial placement between the steel casing wall protection and the artificial hole.

[0006] Preferably, the inner wall of the outer wall of the steel casing protective wall is movably connected with a control rod, the middle part of the outer surface of the control rod is fixedly connected with a pressure plate, the lower surface of the pressure plate is fixedly connected with a spring, the lower end of the control rod is fixedly connected with a stop block, both sides of the outer surface of the stop block are movably connected with limit rods, the upper surface of the steel casing protective wall is provided with a control groove, and the upper end of the control rod is provided with a control assembly; the utility model controls the stop block and the limit rod to be inserted into the interior of the control groove after several steel casing protective walls are stacked and placed, and the limit rod is pressed and rotated to control the stop block and the limit rod, and at the same time the limit rod is engaged with the slot, so as to control the stable connection between the several steel casing protective walls in the connection between the lower end of the control rod and the control groove.

[0007] Preferably, the control assembly includes a handle, a slide groove is provided inside the handle, a connecting shaft is movably connected to the inner surface of the slide groove, a storage groove is provided at the upper end of the control rod, and a hole matching the control rod is provided at the bottom end of the steel casing guard wall; after the control rod is rotated by holding the handle, the handle is translated to move the connecting shaft to the other end of the slide groove, and then the handle is rotated on the outer surface of the connecting shaft to store it into the storage groove, and then the stacking of the steel casing guard wall is avoided from being affected when the control rod and the ground hole of the steel casing guard wall are matched.

[0008] Preferably, the inner diameters of the limit plate and the limit ring match the outer diameter of the steel casing guard wall, the fitting groove and the limit plate match each other, an artificial hole is provided on the outside of the steel casing guard wall, and the limit ring is provided at the artificial hole mouth, the number of the steel casing guard walls is several, and there is no control rod inside the bottom steel casing guard wall; the limit ring provided at the artificial hole mouth positions the steel casing guard wall when it is hoisted and placed, maintains the coaxial placement between the steel casing guard wall and the artificial hole, and the bottom steel casing guard wall directly contacts the bottom surface of the artificial hole to maintain the stability of the stacking.

[0009] Preferably, the control groove includes an inlet, the lower end of the inlet is connected to a rotation groove, and the inner wall of the rotation groove is provided with a card slot; the bottom end of the control rod is conveniently inserted through the inlet, and at the same time, the rotation groove provides space for the control rod to control the rotation of the stop block and the limit rod, and the card slot is used to maintain the stability of the connection after the limit rod is inserted.

[0010] Preferably, the storage groove does not penetrate the control rod and matches the handle, the connecting shaft is fixedly connected to the inner wall of the control rod, and the pressure plate and spring are both located inside the outer wall of the steel casing protective wall; the storage groove that does not penetrate the control rod is used to store the handle into the interior of the control rod, and the pressure plate and spring located inside the steel casing protective wall provide reset force for the control rod after it moves downward.

[0011] Preferably, the interior of the opening of the inlet is a rectangle, and the width of the rectangle matches the length of the block, the length of the rectangle matches the connection length between the two limit rods and the block and the diameter of the rotation groove, and the slot and the limit rod match each other; the inlet of the internal rectangular opening is used to place the block and the limit rod at the lower end of the control rod, and then rotate the block and the limit rod inside the slot to limit the upward movement of the block and the limit rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model uses a limiting ring and a limiting plate on the artificial hole buckle to control the limiting plate to rotate and fit with the steel casing guard wall when the limiting plate is pressed after the steel casing guard wall is hoisted and placed, thereby maintaining the stability of the steel casing guard wall after it is placed in the artificial hole, and facilitating the control of the coaxial placement of the steel casing guard wall and the artificial hole.

[0014] 2. The utility model drives the lower end stopper and the limit rod to rotate inside the control groove by rotating the control rod, thereby further maintaining the stacking stability of several steel casing guard walls. At the same time, with the action of the handle that can be stored inside the control rod, the rotating control rod is prevented from affecting the stacking of the steel casing guard walls, which facilitates the stacking and placement of multiple steel casing guard walls. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the limit plate structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the control rod structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional structure of the steel casing wall protection part of the utility model;

[0019] Figure 5 For the utility model Figure 4 -Schematic diagram of the structure at A;

[0020] In the figure: 1. Steel casing wall; 2. Limiting ring; 3. Limiting plate; 4. Fitting groove; 5. Fixed block; 6. Fixed shaft; 7. Insert rod; 8. Control rod; 9. Control groove; 901. Inlet; 902. Rotating groove; 903. Card slot; 10. Storage slot; 11. Connecting shaft; 12. Slide slot; 13. Pressure plate; 14. Spring; 15. Block; 16. Limiting rod; 17. Handle. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0022] Embodiment: A wall protection structure of a cast-in-place pile, see Figures 1 to 5 , including a steel casing protective wall 1, a limiting ring 2 is arranged on the outer side of the steel casing protective wall 1, a fixing block 5 is fixedly connected to the upper surface of the limiting ring 2, a fixing shaft 6 is movably connected to the inner surface of the fixing block 5, a limiting plate 3 is fixedly connected to the middle of the outer surface of the fixing shaft 6, a plugging rod 7 is fixedly connected to the lower surface of the limiting ring 2, a fitting groove 4 is opened on the inner wall of the limiting ring 2, the inner diameters of the limiting plate 3 and the limiting ring 2 match the outer diameter of the steel casing protective wall 1, the fitting groove 4 and the limiting plate 3 match each other, an artificial hole is arranged on the outer side of the steel casing protective wall 1, and the limiting ring 2 is arranged at the artificial hole mouth, the number of steel casing protective walls 1 is several, and the bottom steel casing protective wall 1 There is no control rod 8 inside; the utility model fixes the limit ring 2 at the opening of the artificial hole by the insertion rod 7, and then hoists the steel casing protective wall 1 until its lower end is located between the two limit plates 3, and then presses the lower edge of the limit plate 3 under the steel casing protective wall 1 and makes the limit plate 3 vertically fit the outer wall of the steel casing protective wall 1 to maintain the coaxial placement between the steel casing protective wall 1 and the artificial hole. The limit ring 2 provided at the artificial hole mouth positions the steel casing protective wall 1 when it is hoisted and placed, and maintains the coaxial placement between the steel casing protective wall 1 and the artificial hole. The bottom steel casing protective wall 1 is directly in contact with the bottom surface of the artificial hole to maintain the stability of the stacking.

[0023] Specifically, the inner wall of the outer wall of the steel casing protective wall 1 is movably connected with a control rod 8, the middle part of the outer surface of the control rod 8 is fixedly connected with a pressure plate 13, the lower surface of the pressure plate 13 is fixedly connected with a spring 14, the lower end of the control rod 8 is fixedly connected with a stopper 15, both sides of the outer surface of the stopper 15 are movably connected with a limit rod 16, the upper surface of the steel casing protective wall 1 is provided with a control groove 9, and the upper end of the control rod 8 is provided with a control component; the utility model controls the stopper 15 and the limit rod 16 to be inserted into the control groove 9 after a plurality of steel casing protective walls 1 are stacked and placed, and the limit rod 16 is pressed and rotated to control the stopper 15 and the limit rod 16 to be inserted into the inside of the control groove 9, and at the same time the limit rod 16 is engaged with the card slot 903, so as to control the stable connection between the plurality of steel casing protective walls 1 in the connection between the lower end of the control rod 8 and the control groove 9

[0024] Furthermore, the control component includes a handle 17, a slide groove 12 is opened inside the handle 17, a connecting shaft 11 is movably connected to the inner surface of the slide groove 12, a storage groove 10 is opened at the upper end of the control rod 8, and a hole matching the control rod 8 is opened at the bottom end of the steel casing guard wall 1; after the control rod 8 is controlled to rotate by holding the handle 17, the handle 17 is translated to move the connecting shaft 11 to the other end inside the slide groove 12, and then the handle 17 is rotated on the outer surface of the connecting shaft 11 to store it into the storage groove 10, and then the stacking of the steel casing guard wall 1 is avoided from being affected by the matching of the control rod 8 and the ground hole of the steel casing guard wall 1.

[0025] It is worth mentioning that the control groove 9 includes an inlet 901, the lower end of the inlet 901 is connected to a rotation groove 902, and a slot 903 is provided on the inner wall of the rotation groove 902. The opening of the inlet 901 is rectangular, and the width of the rectangle matches the length of the stopper 15, the length of the rectangle matches the connection length between the two limit rods 16 and the stopper 15 and the diameter of the rotation groove 902, and the slot 903 matches the limit rod 16. It is convenient to insert the bottom end of the control rod 8 through the inlet 901, and the rotation groove 902 provides space for the control rod 8 to control the rotation of the stopper 15 and the limit rod 16. The slot 903 is used to maintain the stability of the connection after the limit rod 16 is inserted. The inlet 901 with an internal rectangular opening is used to insert the stopper 15 and the limit rod 16 at the lower end of the control rod 8, and then rotate the stopper 15 and the limit rod 16 inside the slot 903 to limit the upward movement of the stopper 15 and the limit rod 16.

[0026] It is worth noting that the storage groove 10 does not penetrate the control rod 8 and matches the handle 17, the connecting shaft 11 is fixedly connected to the inner wall of the control rod 8, and the pressure plate 13 and the spring 14 are both located inside the outer wall of the steel casing protective wall 1; the storage groove 10 that does not penetrate the control rod 8 is used to store the handle 17 into the interior of the control rod 8, and the pressure plate 13 and the spring 14 located inside the steel casing protective wall 1 provide a reset force for the control rod 8 after it moves downward.

[0027] Working principle: before hoisting the steel casing guard wall 1, first insert the insertion rod 7 into the artificial hole and fix the limit ring 2 at this position, then adjust the limit plate 3 to make it tilted, and then move the steel casing guard wall 1 between the two limit plates 3 and put it down. At this time, the lower end of the limit plate 3 is vertical and fits the outer wall of the steel casing guard wall 1 after being squeezed, so as to keep the coaxial hoisting and placement of the steel casing guard wall 1 and the artificial hole; when continuously stacking the steel casing guard walls 1, first rotate the stacked steel casing guard walls 1 to make the lower end of the control rod 8 correspond to the control groove 9, then stack the steel casing guard walls 1, and then press the control rod 8. At this time, the block 15 and the limit rod 16 pass through the inlet 901 and enter the rotating groove 902. Inside, then hold the handle 17 to rotate the control rod 8 to control the rotation of the stop block 15 and the limit rod 16 and control the limit rod 16 to snap into the inside of the slot 903 upward under the action of the spring 14 force, limiting the continued rotation of the control rod 8, and then translate the handle 17 to move the connecting shaft 11 to the other end inside the slide groove 12, and then rotate the handle 17 on the outer surface of the connecting shaft 11 to store it into the storage groove 10. At this time, the control rod 8 can correspond to the hole opened on the ground of the steel casing guard wall 1, avoiding the control rod 8 fixing the initial stacking of the steel casing guard wall 1 and affecting the subsequent stacking. The disassembly is to reverse the operation to control the lower end of the control rod 8 to move out from the inside of the control groove 9, which is convenient for fixing the stack of steel casing guard wall 1.

[0028] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A cast-in-place pile wall protection structure, comprising a steel casing wall protection (1), characterized in that: A limit ring (2) is arranged on the outer side of the steel casing protective wall (1); a fixed block (5) is fixedly connected to the upper surface of the limit ring (2); a fixed shaft (6) is movably connected to the inner surface of the fixed block (5); a limit plate (3) is fixedly connected to the middle part of the outer surface of the fixed shaft (6); an insertion rod (7) is fixedly connected to the lower surface of the limit ring (2); and a fitting groove (4) is provided on the inner wall of the limit ring (2).

2. The wall protection structure of the cast-in-place pile according to claim 1, characterized in that: The inner wall of the outer wall of the steel casing protective wall (1) is movably connected to a control rod (8), the middle part of the outer surface of the control rod (8) is fixedly connected to a pressure plate (13), the lower surface of the pressure plate (13) is fixedly connected to a spring (14), the lower end of the control rod (8) is fixedly connected to a stopper (15), both sides of the outer surface of the stopper (15) are movably connected to limit rods (16), the upper surface of the steel casing protective wall (1) is provided with a control groove (9), and the upper end of the control rod (8) is provided with a control component.

3. The wall protection structure of the cast-in-place pile according to claim 2, characterized in that: The control assembly comprises a handle (17), a slide groove (12) is provided inside the handle (17), a connecting shaft (11) is movably connected to the inner surface of the slide groove (12), a receiving groove (10) is provided at the upper end of the control rod (8), and a hole matching the control rod (8) is provided at the bottom end of the steel casing protective wall (1).

4. The wall protection structure of the cast-in-place pile according to claim 1, characterized in that: The inner diameters of the limit plate (3) and the limit ring (2) match the outer diameter of the steel casing protective wall (1); the fitting groove (4) and the limit plate (3) match each other; an artificial hole is provided on the outer side of the steel casing protective wall (1); and the limit ring (2) is provided at the artificial hole opening; there are a plurality of steel casing protective walls (1); and there is no control rod (8) inside the bottommost steel casing protective wall (1).

5. The wall protection structure of the cast-in-place pile according to claim 2, characterized in that: The control groove (9) comprises an inlet (901), the lower end of the inlet (901) is connected to a rotation groove (902), and the inner wall of the rotation groove (902) is provided with a clamping groove (903).

6. The wall protection structure of the cast-in-place pile according to claim 3, characterized in that: The receiving groove (10) does not penetrate the control rod (8) and matches the handle (17), the connecting shaft (11) is fixedly connected to the inner wall of the control rod (8), and the pressure plate (13) and the spring (14) are both located inside the outer wall of the steel casing protective wall (1).

7. The wall protection structure of the cast-in-place pile according to claim 5, characterized in that: The opening of the inlet (901) is rectangular in shape, and the width of the rectangle matches the length of the stopper (15), the length of the rectangle matches the connection length between the two limit rods (16) and the stopper (15) and the diameter of the rotation slot (902), and the clamping slot (903) matches the limit rod (16).

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