Cast-in-place pile steel casing for improving burying of deep riprap layer

Abstract

The utility model discloses a cast-in-place pile steel casing for improving embedding of a deep riprap layer, which comprises an upper steel casing, a lower steel casing and a black metal drill bit, the lower steel casing is arranged at the bottom of the upper steel casing, reinforcing ribs are welded on the inner wall of the upper steel casing and the inner wall of the lower steel casing, support rings are arranged on the inner walls of the reinforcing ribs, and the support rings are connected with the upper steel casing and the lower steel casing. The black metal drill bits are annularly arranged and welded to the bottom end of the lower steel casing, an inner sleeve is arranged at the top of the lower steel casing, clamping grooves are annularly arranged in the middle of the inner sleeve, an outer sleeve is arranged at the bottom end of the upper steel casing, movable grooves are annularly arranged in the middle of the outer sleeve, and movable rods are arranged in the middles of the movable grooves. A clamping block is arranged at the end, away from the outer wall of the outer sleeve, of the movable rod and matched with the clamping groove. And the stone crushing and riprapping efficiency can be improved through the black metal drill bit, the pile casing burying progress is accelerated, and the steel pile casing is conveniently transported through separation of the steel pile casing and the lower steel pile casing.

Description

Technical Field

[0001] The utility model relates to the technical field of steel casings, in particular to a steel casing for cast-in-place piles for improving the burial of a thick riprap layer. Background Art

[0002] The steel casing for bored piles is an auxiliary tool used in bored pile construction. It is usually made of steel and is cylindrical. The main functions of the steel casing include locating the pile position to be drilled, protecting the hole mouth, preventing ground stones from falling into the hole, maintaining the mud water level (pressure) to prevent hole collapse, serving as one of the bases for pile top elevation control, and preventing sediment backflow during the drilling process. The application number CN201920068860.7 has been retrieved. The steel casing for column installation is used. When making and hanging the steel casing, an internal support is set in the steel casing body to prevent the deformation of the steel casing body during the making and hanging process; in addition, the setting of the inner support ring increases the strength of the steel casing. The lifting ring and the well-shaped hanger facilitate the hanging of the steel casing.

[0003] Similar to the above-mentioned steel casing for column installation: although the strength of the steel casing is increased by the setting of outer and inner support rings, the lifting rings and the criss-cross hangers facilitate the lifting and placement of the steel casing, but firstly, when bored piles are driven into the deep riprap layer to bury the steel casing to penetrate the riprap layer, it is very difficult to rely solely on the strong vibration and pressing of the vibrating hammer. Secondly, the common steel casing is an integrated, non-detachable cylinder structure, and the longer cylinder makes it difficult to transport and transfer the steel casing.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a steel casing of cast-in-place piles buried in a deep riprap layer is proposed to achieve a more practical purpose. Utility Model Content

[0005] The utility model aims to provide a steel casing for bored piles buried in deep riprap layers, so as to solve the problems of the above-mentioned steel casing for column installation proposed in the above-mentioned background technology. Firstly, when bored piles are driven in a deep riprap layer to bury the steel casing and penetrate the riprap layer, it is very difficult to drive it purely by strong vibration pressing of a vibrating hammer. Secondly, the common steel casing is an integrated cylinder structure that cannot be disassembled, and the long cylinder makes it difficult to transport and transfer the steel casing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel casing for cast-in-place piles buried in a deep riprap layer, comprising an upper steel casing, a lower steel casing and a black gold drill bit, a lower steel casing being arranged at the bottom of the upper steel casing, the upper steel casing matching the lower steel casing, reinforcing ribs being welded to the inner walls of the upper steel casing and the lower steel casing, support rings being arranged on the inner walls of the reinforcing ribs, and the black gold drill bit being arranged in a ring and welded to the bottom end of the lower steel casing.

[0007] Furthermore, an inner sleeve is arranged at the top of the lower steel casing, a middle ring of the inner sleeve is arranged with slots, and an outer sleeve is arranged at the bottom end of the upper steel casing, and the inner wall of the outer sleeve matches the outer wall of the inner sleeve.

[0008] Furthermore, a movable groove is arranged in a ring in the middle of the outer sleeve, a movable rod is arranged in the middle of the movable groove, and a clamping block is arranged at one end of the movable rod away from the outer wall of the outer sleeve, and the clamping block matches the clamping groove.

[0009] Furthermore, a moving block is arranged at one end of the movable rod away from the locking block, the outer wall of the moving block is arranged as an inclined surface, a supporting spring is arranged at one end of the moving block, and the end of the supporting spring away from the moving block abuts against the inner wall of the movable groove.

[0010] Furthermore, a limit slide groove is arranged on the top of the movable groove, an adjustment ring is sleeved on the bottom outer wall of the upper steel casing, a limit slider is arranged on the inner wall of the adjustment ring, and the limit slider is embedded in the limit slide groove.

[0011] Furthermore, adjusting bolts are arranged on one side of the top of the adjusting ring, and an adjusting knob is provided on the outer wall of the adjusting ring. The output end of the adjusting knob is connected to the adjusting bolt, and the output end of the adjusting bolt is connected to a pressure block, which is embedded in a limiting slide groove, and lifting rings are provided on both sides of the top of the upper steel casing.

[0012] Compared with the prior art, the utility model has the following beneficial effects: a steel casing for cast-in-place piles for burying in a deep riprap layer can improve the efficiency of crushing riprap through a black gold drill bit, accelerate the progress of casing burying, and facilitate the transportation of the steel casing by separating the steel casing from the lower steel casing. The specific contents are as follows:

[0013] The bottom of the upper steel casing is provided with a lower steel casing, which matches the lower steel casing. The upper steel casing and the lower steel casing can be spliced ​​into a completed steel casing. The separation of the steel casing and the lower steel casing is convenient for transportation of the steel casing. The inner walls of the upper steel casing and the lower steel casing are welded with reinforcing ribs. The reinforcing ribs play a reinforcing role and improve the strength of the steel casing. The inner walls of the reinforcing ribs are arranged with support rings, which improve the supporting properties of the steel casing. The black gold drill bit ring is arranged and welded to the bottom end of the lower steel casing. The black gold drill bit can improve the efficiency of crushing and throwing stones and speed up the progress of casing burying. When disassembly is required, the extrusion of the pressure block can be cancelled by adjusting the knob, and the adjusting ring can be pushed upward for translation. After moving out of the outer wall of the moving block, the moving block is pushed outward for translation by the rebound force of the supporting spring, thereby driving the movable rod to move, thereby driving the card block to move out of the card slot to cancel the engagement, thereby completing the disassembly and facilitating the movement and transportation of the steel casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a front view structural schematic diagram of a steel casing of a cast-in-place pile buried in a deep riprap layer according to the utility model;

[0015] Figure 2 This is a schematic diagram of the exploded structure of a steel casing for a cast-in-place pile buried in a deep riprap layer according to the utility model;

[0016] Figure 3 This is a schematic diagram of the main structure of a steel casing for a cast-in-place pile buried in a deep riprap layer according to the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the steel casing reinforcement structure of a cast-in-place pile buried in a deep riprap layer.

[0018] In the figure: 1. upper steel casing; 2. lower steel casing; 3. reinforcing ribs; 4. support ring; 5. black gold drill bit; 6. inner sleeve; 7. slot; 8. outer sleeve; 9. movable slot; 10. movable rod; 11. clamping block; 12. moving block; 13. support spring; 14. limiting slide groove; 15. adjusting ring; 16. limiting slider; 17. adjusting bolt; 18. adjusting knob; 19. pressure block; 20. lifting ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 - Figure 4 The utility model provides a technical solution: a cast-in-place pile steel casing for improving the burial of a deep riprap layer, comprising an upper steel casing 1, a lower steel casing 2 and a black gold drill bit 5. A lower steel casing 2 is arranged at the bottom of the upper steel casing 1, and the upper steel casing 1 matches the lower steel casing 2. The upper steel casing 1 and the lower steel casing 2 can be spliced ​​into a completed steel casing. The separation of the steel casing 1 and the lower steel casing 2 facilitates the transportation of the steel casing. Reinforcement ribs 3 are welded on the inner walls of the upper steel casing 1 and the lower steel casing 2. The reinforcement ribs 3 play a reinforcing role in improving the strength of the steel casing. Support rings 4 are arranged on the inner walls of the reinforcement ribs 3. The support rings 4 improve the supporting performance of the steel casing. Black gold drill bits 5 are arranged in a ring and welded to the bottom end of the lower steel casing 2. The black gold drill bit 5 can improve the efficiency of crushing riprap and speed up the progress of casing burial.

[0021] An inner sleeve 6 is provided at the top of the lower steel casing 2, and the inner sleeve 6 plays a connecting role. The middle ring of the inner sleeve 6 is arranged with a card groove 7, and the card groove 7 plays a limiting and fixing role. An outer sleeve 8 is provided at the bottom end of the upper steel casing 1. The inner wall of the outer sleeve 8 matches the outer wall of the inner sleeve 6, and the outer sleeve 8 can be sleeved on the top outer wall of the inner sleeve 6.

[0022] The outer sleeve 8 is provided with movable grooves 9 arranged in a ring in the middle, a movable rod 10 is provided in the middle of the movable groove 9, and a clamping block 11 is provided at one end of the movable rod 10 away from the outer wall of the outer sleeve 8. The clamping block 11 matches the clamping groove 7, and the clamping block 11 can be embedded in the clamping groove 7 for clamping, thereby realizing the combined connection of the upper steel casing 1 and the lower steel casing 2, which is convenient for the use of the steel casing.

[0023] A moving block 12 is arranged at one end of the movable rod 10 away from the blocking block 11. The moving block 12 can be moved and adjusted. The outer wall of the moving block 12 is arranged as an inclined surface. The inclined surface setting facilitates the downward squeezing and contraction of the adjusting ring 15. A supporting spring 13 is arranged at one end of the moving block 12. The supporting spring 13 contracts and rebounds under pressure. The end of the supporting spring 13 away from the moving block 12 abuts against the inner wall of the movable groove 9.

[0024] A limit slide groove 14 is arranged at the top of the movable groove 9, and an adjusting ring 15 is sleeved on the bottom outer wall of the upper steel casing 1. A limit slide block 16 is arranged on the inner wall of the adjusting ring 15. The limit slide block 16 is embedded in the limit slide groove 14, and the limit slide block 16 can move in the limit slide groove 14 to play a limiting role. The adjusting ring 15 moves to drive the limit slide block 16 to move in the limit slide groove 14. When it is necessary to connect the upper steel casing 1 with the lower steel casing 2, the outer sleeve 8 is first sleeved on the top outer wall of the inner sleeve 6, and the moving adjusting ring 15 is moved downward. The adjusting ring 15 moves to the outer wall of the moving block 12 to squeeze the moving block 12, and the support spring 13 is compressed and contracted. The moving block 12 pushes the movable rod 10 to move in the direction of the inner sleeve 6, and the movable rod 10 moves to drive the card block 11 to translate so as to be embedded in the card groove 7, thereby realizing that the upper steel casing 1 and the lower steel casing 2 can be fixedly connected.

[0025] An adjusting bolt 17 is arranged on one side of the top of the adjusting ring 15, and an adjusting knob 18 is arranged on the outer wall of the adjusting ring 15. The output end of the adjusting knob 18 is connected to the adjusting bolt 17, and the output end of the adjusting bolt 17 is connected to a pressing block 19, which is embedded in the limiting slide groove 14. By twisting the adjusting knob 18, the adjusting bolt 17 can be driven to perform telescopic adjustment, and the adjusting bolt 17 pushes the pressing block 19 to squeeze the inner wall of the limiting slide groove 14, thereby fixing the position of the adjusting ring 15 and completing the alignment of the upper steel casing 1 and the upper steel casing 1. The lower steel casing 2 is combined and connected. When disassembly is required, the squeezing of the pressure block 19 is cancelled by adjusting the knob 18, and the adjusting ring 15 is pushed to translate upward. After moving out of the outer wall of the moving block 12, the moving block 12 is pushed to translate outward by the rebound force of the supporting spring 13, thereby driving the movable rod 10 to move and thereby driving the clamping block 11 to move out of the clamping groove 7 to cancel the engagement, thereby completing the disassembly and facilitating the movement and transportation of the steel casing. Lifting rings 20 are provided on both sides of the top of the upper steel casing 1, and the lifting rings 20 can pull up the steel casing for auxiliary work in the construction of cast-in-place piles.

[0026] Working principle: when using a cast-in-place pile steel casing for improving the burial of deep riprap layer, the steel casing is buried and penetrates the riprap layer, and the black gold drill bit 5 is arranged in a circle and welded to the bottom end of the lower steel casing 2. The black gold drill bit 5 can improve the efficiency of crushing riprap and speed up the burial progress of the casing. The upper steel casing 1 and the lower steel casing 2 can be spliced ​​into a completed steel casing. The separation of the steel casing 1 and the lower steel casing 2 facilitates the transportation of the steel casing. The reinforcing ribs 3 play a reinforcing role to improve the strength of the steel casing, and the support ring 4 improves the supporting property of the steel casing. When it is necessary to connect the upper steel casing 1 and the lower steel casing 2, first, the outer sleeve 8 is sleeved on the top outer wall of the inner sleeve 6, and the movable adjustment ring 15 is moved downward. The outer wall of the adjusting ring 15 moves to the movable block 12 to squeeze the movable block 12, and the support spring 13 is compressed and contracted. The movable block 12 pushes the movable rod 10 to move in the direction of the inner sleeve 6. The movable rod 10 The movement drives the card block 11 to translate and thus be embedded in the card slot 7, thereby realizing that the upper steel casing 1 and the lower steel casing 2 can be fixedly connected. The adjusting bolt 17 can be driven to perform telescopic adjustment by twisting the adjusting knob 18, and the adjusting bolt 17 pushes the pressure block 19 to squeeze the inner wall of the limiting slide groove 14, thereby realizing the fixation of the position of the adjusting ring 15, and completing the combined connection of the upper steel casing 1 and the lower steel casing 2. When disassembly is required, the squeezing of the pressure block 19 is cancelled by the adjusting knob 18, and the adjusting ring 15 is pushed to translate upward. After moving out of the outer wall of the moving block 12, the moving block 12 is pushed outward by the resilience of the supporting spring 13, thereby driving the movable rod 10 to move, thereby driving the card block 11 to move out of the card slot 7 to cancel the engagement, thereby completing the disassembly and facilitating the movement and transportation of the steel casing, and the lifting ring 20 can pull up the steel casing to perform auxiliary work in the construction of cast-in-place piles.

Claims

1. A steel casing for a cast-in-place pile for improving the burial depth in a deep riprap layer, comprising an upper steel casing (1), a lower steel casing (2) and a black gold drill bit (5), characterized in that: A lower steel casing (2) is arranged at the bottom of the upper steel casing (1), the upper steel casing (1) matches the lower steel casing (2), the inner walls of the upper steel casing (1) and the lower steel casing (2) are welded with reinforcing ribs (3), the inner walls of the reinforcing ribs (3) are arranged with support rings (4), and the black gold drill bits (5) are arranged in a ring and welded to the bottom end of the lower steel casing (2).

2. The steel casing for cast-in-place piles for improving the embedment of deep riprap layers according to claim 1, characterized in that: An inner sleeve (6) is arranged at the top of the lower steel casing (2), and a clamping groove (7) is arranged in a ring in the middle of the inner sleeve (6). An outer sleeve (8) is arranged at the bottom end of the upper steel casing (1), and the inner wall of the outer sleeve (8) matches the outer wall of the inner sleeve (6).

3. A steel casing for cast-in-place piles for improving the embedment of deep riprap layers according to claim 2, characterized in that: The outer sleeve (8) is provided with movable grooves (9) arranged in a ring in the middle, a movable rod (10) is provided in the middle of the movable groove (9), and a clamping block (11) is provided at one end of the movable rod (10) away from the outer wall of the outer sleeve (8), and the clamping block (11) matches the clamping groove (7).

4. A steel casing for cast-in-place piles for improving the embedment of deep riprap layers according to claim 3, characterized in that: A moving block (12) is arranged at one end of the movable rod (10) away from the clamping block (11); the outer wall of the moving block (12) is arranged as an inclined surface; a supporting spring (13) is arranged at one end of the moving block (12); and the end of the supporting spring (13) away from the moving block (12) abuts against the inner wall of the movable groove (9).

5. The steel casing for cast-in-place piles for improving the embedment of deep riprap layers according to claim 3, characterized in that: A limit slide groove (14) is arranged on the top of the movable groove (9), an adjustment ring (15) is sleeved on the bottom outer wall of the upper steel casing (1), a limit slide block (16) is arranged on the inner wall of the adjustment ring (15), and the limit slide block (16) is embedded in the limit slide groove (14).

6. A steel casing for cast-in-place piles for improving the embedment of deep riprap layers according to claim 5, characterized in that: An adjusting bolt (17) is arranged on one side of the top of the adjusting ring (15), an adjusting knob (18) is arranged on the outer wall of the adjusting ring (15), an output end of the adjusting knob (18) is connected to the adjusting bolt (17), and a pressure block (19) is connected to the output end of the adjusting bolt (17), and the pressure block (19) is embedded in the limiting sliding groove (14), and lifting rings (20) are arranged on both sides of the top of the upper steel casing (1).

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