Double-pile-casing structure for forming cast-in-place pile
By using a double-bore structure and a hanging ring to lift the ceiling holding plate during the cast pile formation process, the problem of position offset and verticality of the cast pile formation holes under complex geological conditions is solved, and the hole formation and pile formation effect with higher quality and precision is achieved.
Patent Information
- Application Number
- CN202411764634.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-03-25
AI Technical Summary
Under complex geological conditions, when using the usual method of using the vibration hammer to enter the deep long casing arm guard to hole the cast pile, it is easy to have position deviation, do not meet the verticality requirements of the casing, and it is difficult to avoid hole collapse and neck shrinkage.
A double-carriage structure for cast-injected pile forming is adopted, including components such as top holder plate, inner holder, outer holder and lifting ring. The ceiling holder plate is raised through the lifting ring, so that the balance rod is held on the ground under the action of gravity, stabilizing the position of the top holder plate, thereby maintaining the verticality of the inner holder.
The hole-forming position of the cast pile is effectively stabilized, avoiding the problem of position deviation and verticality inability, and reducing the occurrence of hole collapse and neck shrinkage, improving the quality and accuracy of hole-forming piles.
Smart Images
Figure CN119686304A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of cast-in-place pile molding, in particular to a double casing structure for cast-in-place pile molding. Background Art
[0002] With the development of the construction industry, there are more and more ultra-deep foundation pit projects, and the construction sites in cities are severely limited. In order to solve the various influencing factors of urban engineering construction, the use of reverse construction has gradually become a trend in urban engineering development. The construction of one column and one pile is a key part of the reverse construction. Faced with some complex geological conditions and ultra-deep drilling and pouring, ensuring the quality of drilling and pile formation as well as the verticality and precision requirements of one column and one pile construction is the key to the success of the reverse construction project.
[0003] If the bored piles are drilled by the usual method of inserting a vibrating hammer into a deep and long casing arm, it is easy to cause position deviation under complex geological conditions, which will not meet the verticality requirements of the casing, and it is difficult to ensure that the drilling will not cause collapse or necking. Summary of the invention
[0004] The object of the present invention is to provide a double casing structure for cast-in-place pile molding to solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above object, the present invention provides the following technical solution: a double casing structure for cast-in-place pile forming, comprising:
[0006] A top holding plate, wherein an outer casing is arranged at the bottom of the top holding plate, and an extension ring is arranged outside the outer casing;
[0007] A lifting ring, wherein a horizontal plate is arranged on the surface of the lifting ring, a connecting plate is arranged on the surface of the lifting ring, a screw is arranged on the surface of the connecting plate, a vertical plate is arranged at the end of the horizontal plate, a top holding plate is arranged at the bottom of the vertical plate, and a top holding block is arranged on the surface of the top holding plate; and
[0008] The inner casing is arranged inside the top holding plate.
[0009] Preferably, a through hole is provided on the surface of the top holding plate, a balance rod is inserted in the through hole, the balance rod can be raised and lowered in the through hole, a plug-in groove is provided on the surface of the balance rod, and a plurality of groups of plug-in grooves are provided, a limit plate is fixed on the surface of the top holding plate, a telescopic block is inserted in the surface of the top holding plate, and the telescopic block is located between the two groups of limit plates.
[0010] Preferably, a second plug-in rod is fixed at the bottom of the balance pole, and multiple groups of the second plug-in rods are provided. The second plug-in rods are raised and lowered along with the balance pole. A limiting plate is provided at one end of the telescopic block close to the balance pole. After the telescopic block moves toward the balance pole, the limiting plate on the surface of the telescopic block can be inserted into the plug-in groove.
[0011] Preferably, a second slot is provided on the surface of the top holding plate, a connecting plate is provided in the second slot, a screw is provided on the surface of the connecting plate, the end of the screw is screwed in the second slot, a spring is provided on the surface of the screw, one end of the spring is connected to the bottom of the connecting plate, and the other end of the spring is connected to the inner wall of the second slot.
[0012] Preferably, a lifting ring is fixed to the end of the connecting plate, a horizontal plate is fixed to the surface of the lifting ring, and after the lifting ring is lowered, it is supported on the end of the telescopic block, a first groove is opened on the surface of the supporting plate, and the vertical plate at the end of the horizontal plate is located in the first groove.
[0013] Preferably, the top holding plate at the bottom of the vertical plate is plugged into the inside of the top holding plate, and a plurality of groups of top holding blocks are fixed on the surface of the top holding plate, and the top holding blocks are raised and lowered along with the top holding plate.
[0014] Preferably, a first plug-in rod is inserted into the interior of the extension ring, and a plurality of first plug-in rods are provided. A force-bearing ball is fixed to the end of the first plug-in rod, and the first plug-in rod moves along with the force-bearing ball.
[0015] Preferably, after the supporting plate descends, the supporting blocks on the surface of the supporting plate support the surface of the force-bearing ball, the force-bearing ball is squeezed and moves, and the first connecting rod extends from the inside of the extension ring as the force-bearing ball moves.
[0016] Preferably, two groups of lifting rings are fixed on the surface of the top holding plate, the surfaces of the lifting rings are connected to the lifting equipment, and the lifting rings are raised and lowered under the action of the lifting equipment.
[0017] Preferably, the inner casing is located inside the top holding plate and can be raised and lowered, and the outer diameter of the inner casing is the same as the inner diameter of the top holding plate.
[0018] Compared with the prior art, the present invention has the following beneficial effects:
[0019] The present invention proposes to lift the top holding plate by a lifting ring so that the balance pole is supported on the ground under the action of gravity. There are multiple groups of balance poles, and the bottom of each group of balance poles is supported on the ground. The telescopic block is supported on the surface of the balance pole, and the surface of the balance pole is provided with a plug-in groove. A limiting piece is provided on the side of the telescopic block close to the balance pole, and the limiting piece on the surface of the telescopic block is plugged into the plug-in groove to stabilize the position of the balance pole, so that the top holding plate is in a horizontal position, and the inner casing is plugged into the interior of the top holding plate, and the top holding plate can maintain the verticality of the inner casing. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.
[0021] Figure 2 It is a schematic diagram of the lifting ring structure of the present invention.
[0022] Figure 3 It is a schematic diagram of the extended ring structure of the present invention.
[0023] Figure 4 for Figure 3 A schematic diagram of the enlarged structure in the middle.
[0024] Figure 5 for Figure 3 The structure at B in the middle is enlarged to show a schematic diagram.
[0025] Figure 6 It is a schematic diagram of the vertical plate structure of the present invention.
[0026] In the figure: a holding plate 1, an inner casing 2, an extension ring 3, an outer casing 4, a first slot 5, a horizontal plate 6, a lifting ring 7, a through hole 8, a lifting ring 9, a connecting plate 10, a first plug-in rod 11, a telescopic block 12, a limit plate 13, a plug-in slot 14, a balance rod 15, a second plug-in rod 16, a screw 17, a spring 18, a second slot 19, a vertical plate 20, a holding plate 21, a holding block 22, and a force-bearing ball 23. DETAILED DESCRIPTION
[0027] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0028] See also Figures 1 to 6 , the present invention provides a technical solution:
[0029] Embodiment 1: A double casing structure for cast-in-place pile forming, comprising: a top holding plate 1, an outer casing 4 is arranged at the bottom of the top holding plate 1, and an extension ring 3 is arranged on the outside of the outer casing 4; a lifting ring 7, a horizontal plate 6 is arranged on the surface of the lifting ring 7, a connecting plate 10 is arranged on the surface of the lifting ring 7, a screw 17 is arranged on the surface of the connecting plate 10, a vertical plate 20 is arranged at the end of the horizontal plate 6, a top holding plate 21 is arranged at the bottom of the vertical plate 20, and a top holding block 22 is arranged on the surface of the top holding plate 21; and an inner casing 2, which is arranged inside the top holding plate 1, the vertical plate 20 drives the top holding plate 21 to descend, and the top holding block 22 on the surface of the top holding plate 21 is supported on the surface of the force-bearing ball 23, so that the force-bearing ball 23 drives the first plug-in rod 11 to extend out of the extension ring 3, and the first plug-in rod 11 is inserted into the hole, thereby further stabilizing the top holding plate 1 and the outer casing 4.
[0030] Embodiment 2: On the basis of embodiment 1, a through hole 8 is provided on the surface of the top holding plate 1, and a balance rod 15 is inserted in the through hole 8. The balance rod 15 can be raised and lowered in the through hole 8, and an insertion groove 14 is provided on the surface of the balance rod 15, and there are multiple groups of insertion grooves 14. A limit plate 13 is fixed on the surface of the top holding plate 1, and a telescopic block 12 is inserted on the surface of the top holding plate 1, and the telescopic block 12 is located between two groups of limit plates 13. A first plug-in rod 11 is inserted inside the extension ring 3, and there are multiple groups of first plug-in rods 11. A force-bearing ball 23 is fixed on the end of the first plug-in rod 11, and the first plug-in rod 11 moves with the force-bearing ball 23. Two groups of lifting rings 9 are fixed on the surface of the top holding plate 1, and the surface of the lifting ring 9 is connected to the lifting equipment. The lifting ring 9 is lifted and lowered under the action of the lifting equipment. The inner casing 2 is located inside the top holding plate 1 and can be lifted and lowered, and the outer diameter of the inner casing 2 is the same as the inner diameter of the top holding plate 1.
[0031] A second plug-in rod 16 is fixed to the bottom of the balance pole 15. The second plug-in rod 16 is provided with multiple groups. The second plug-in rod 16 is raised and lowered with the balance pole 15. A limiting piece is provided at one end of the telescopic block 12 close to the balance pole 15. After the telescopic block 12 moves toward the balance pole 15, the limiting piece on the surface of the telescopic block 12 can be inserted into the plug-in groove 14. The lifting ring 7 is supported on the end of the telescopic block 12 so that the telescopic block 12 enters the interior of the top holding plate 1. The telescopic block 12 is supported on the surface of the balance pole 15. The surface of the balance pole 15 is provided with a plug-in groove 14. A limiting piece is provided on the side of the telescopic block 12 close to the balance pole 15. The limiting piece on the surface of the telescopic block 12 is inserted into the plug-in groove 14 to stabilize the position of the balance pole 15.
[0032] A second slot 19 is provided on the surface of the top holding plate 1, a connecting plate 10 is provided in the second slot 19, a screw 17 is provided on the surface of the connecting plate 10, the end of the screw 17 is screwed in the second slot 19, a spring 18 is provided on the surface of the screw 17, one end of the spring 18 is connected to the bottom of the connecting plate 10, and the other end of the spring 18 is connected to the inner wall of the second slot 19, a lifting ring 7 is fixed to the end of the connecting plate 10, a horizontal plate 6 is fixed to the surface of the lifting ring 7, and the lifting ring 7 is held at the end of the telescopic block 12 after it is lowered, a first slot 5 is provided on the surface of the top holding plate 1, a vertical plate 20 at the end of the horizontal plate 6 is located in the first slot 5, and the bottom of the vertical plate 20 is fixed to the bottom of the vertical plate 20. The top holding plate 21 of the top is inserted into the inside of the top holding plate 1, and multiple groups of top holding blocks 22 are fixed on the surface of the top holding plate 21. The top holding blocks 22 rise and fall with the top holding plate 21. After the top holding plate 21 is lowered, the top holding blocks 22 on the surface of the top holding plate 21 are pressed against the surface of the force-bearing ball 23, and the force-bearing ball 23 is squeezed to move. The first connecting rod 11 moves with the force-bearing ball 23 and extends from the inside of the extension ring 3. The top holding blocks 22 on the surface of the top holding plate 21 are pressed against the surface of the force-bearing ball 23, so that the force-bearing ball 23 drives the first connecting rod 11 to extend from the extension ring 3, and the first connecting rod 11 is inserted into the hole, further stabilizing the top holding plate 1 and the outer casing 4.
[0033] Place the top holding plate 1 on the top of the excavated hole, the top holding plate 1 is located on the ground, the outer casing 4 is inserted into the hole, and the top holding plate 1 is lifted by the lifting ring 9, so that the balance rod 15 is supported on the ground under the action of gravity. There are multiple groups of balance rods 15, and the bottom of each group of balance rods 15 is supported on the ground. Screw the screw 17, and the end of the screw 17 presses down the connecting plate 10, so that the spring 18 is squeezed, and the lifting ring 7 descends with the connecting plate 10. The lifting ring 7 is supported on the end of the telescopic block 12, so that the telescopic block 12 enters the interior of the top holding plate 1, and the telescopic block 12 is supported on the surface of the balance rod 15. The surface of the balance rod 15 is provided with a plug-in groove 14, and the side of the telescopic block 12 close to the balance rod 15 is provided with a limiting plate. The limiting piece is inserted in the insertion groove 14 to stabilize the position of the balance rod 15, so that the top holding plate 1 is in a horizontal position, and the top holding plate 1 is pressed down so that the second insertion rod 16 at the bottom of the balance rod 15 is inserted into the soil, stabilizing the position of the top holding plate 1, and the screw 17 is continued to be screwed, so that the lifting ring 7 drives the horizontal plate 6 to continue to descend, the horizontal plate 6 drives the vertical plate 20 to descend, and the vertical plate 20 drives the top holding plate 21 to descend. The top holding block 22 on the surface of the top holding plate 21 is supported on the surface of the force-bearing ball 23, so that the force-bearing ball 23 drives the first insertion rod 11 to extend out of the extension ring 3, and the first insertion rod 11 is inserted into the hole, further stabilizing the top holding plate 1 and the outer casing 4, and the inner casing 2 is inserted into the interior of the top holding plate 1, and the top holding plate 1 can maintain the verticality of the inner casing 2.
[0034] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.
Claims
1. A double casing structure for cast-in-place pile forming, characterized in that: include: A top holding plate (1), wherein an outer protective tube (4) is arranged at the bottom of the top holding plate (1), and an extension ring (3) is arranged outside the outer protective tube (4); A lifting ring (7), a horizontal plate (6) is arranged on the surface of the lifting ring (7), a connecting plate (10) is arranged on the surface of the lifting ring (7), a screw (17) is arranged on the surface of the connecting plate (10), a vertical plate (20) is arranged at the end of the horizontal plate (6), a top holding plate (21) is arranged at the bottom of the vertical plate (20), and a top holding block (22) is arranged on the surface of the top holding plate (21); and The inner casing (2) is arranged inside the top holding plate (1).
2. A double casing structure for cast-in-place pile molding according to claim 1, characterized in that: The surface of the top holding plate (1) is provided with a through hole (8), a balancing rod (15) is inserted into the through hole (8), the balancing rod (15) can be raised and lowered in the through hole (8), a plug-in slot (14) is provided on the surface of the balancing rod (15), and a plurality of plug-in slots (14) are provided. A limit plate (13) is fixed on the surface of the top holding plate (1), a telescopic block (12) is inserted into the surface of the top holding plate (1), and the telescopic block (12) is located between two groups of limit plates (13).
3. A double casing structure for cast-in-place pile molding according to claim 2, characterized in that: A second plug-in rod (16) is fixed at the bottom of the balance pole (15), and a plurality of second plug-in rods (16) are provided. The second plug-in rods (16) are raised and lowered along with the balance pole (15). A limiting piece is provided at one end of the telescopic block (12) close to the balance pole (15). After the telescopic block (12) moves toward the balance pole (15), the limiting piece on the surface of the telescopic block (12) can be plugged into the plug-in slot (14).
4. A double casing structure for cast-in-place pile molding according to claim 3, characterized in that: A second slot (19) is provided on the surface of the top holding plate (1), a connecting plate (10) is arranged in the second slot (19), a screw rod (17) is provided on the surface of the connecting plate (10), the end of the screw rod (17) is screwed into the second slot (19), a spring (18) is provided on the surface of the screw rod (17), one end of the spring (18) is connected to the bottom of the connecting plate (10), and the other end of the spring (18) is connected to the inner wall of the second slot (19).
5. A double casing structure for cast-in-place pile molding according to claim 4, characterized in that: A lifting ring (7) is fixed at the end of the connecting plate (10), a horizontal plate (6) is fixed on the surface of the lifting ring (7), and the lifting ring (7) is supported on the end of the telescopic block (12) after being lowered, a first slot (5) is provided on the surface of the supporting plate (1), and a vertical plate (20) at the end of the horizontal plate (6) is located in the first slot (5).
6. A double casing structure for cast-in-place pile molding according to claim 5, characterized in that: The top holding plate (21) at the bottom of the vertical plate (20) is inserted into the inside of the top holding plate (1), and a plurality of groups of top holding blocks (22) are fixed on the surface of the top holding plate (21), and the top holding blocks (22) are raised and lowered along with the top holding plate (21).
7. A double casing structure for cast-in-place pile molding according to claim 6, characterized in that: A first plug-in rod (11) is inserted into the interior of the extension ring (3), and a plurality of first plug-in rods (11) are provided. A force-bearing ball (23) is fixed to the end of the first plug-in rod (11), and the first plug-in rod (11) moves along with the force-bearing ball (23).
8. A double casing structure for cast-in-place pile molding according to claim 7, characterized in that: After the supporting plate (21) descends, the supporting block (22) on the surface of the supporting plate (21) supports the surface of the force-bearing ball (23), the force-bearing ball (23) is squeezed and moves, and the first connecting rod (11) extends out from the inside of the extension ring (3) as the force-bearing ball (23) moves.
9. A double casing structure for cast-in-place pile molding according to claim 8, characterized in that: Two groups of lifting rings (9) are fixed on the surface of the top holding plate (1), and the surfaces of the lifting rings (9) are connected to the lifting equipment. The lifting rings (9) are lifted and lowered under the action of the lifting equipment.
10. A double casing structure for cast-in-place pile molding according to claim 9, characterized in that: The inner casing (2) is located inside the top holding plate (1) and can be raised and lowered, and the outer diameter of the inner casing (2) is the same as the inner diameter of the top holding plate (1).