A concrete auxiliary guide structure for pouring a cast-in-place pile

Abstract

The utility model belongs to the field of pouring pile pouring technology, concretely relates to a kind of concrete auxiliary guiding structure for pouring pile pouring, including pedestal support and guide pipe, the inner wall of pedestal support is connected with guide assembly, the side surface of guide assembly is connected with the spring strip being connected with pedestal support, the end of guide assembly is connected with the fixed sleeve in the center position of pedestal support, the inside of fixed sleeve is penetrated with guide pipe, the top of guide pipe is connected with conical hopper, the side surface of guide pipe is connected with rack, the surface of fixed sleeve is equipped with first driving motor. The utility model, first driving motor drives gear disc rotation when operating, gear disc rotation drives rack longitudinal movement, rack longitudinal movement drives guide pipe to slide longitudinally in the inside of fixed sleeve, so it can avoid guide pipe to insert too deep in the concrete inside pouring hole to cause guide pipe internal concrete slurry discharging speed slow, to improve the speed of pouring pile pouring.

Description

Technical Field

[0001] This utility model belongs to the field of cast-in-place pile casting technology, specifically relating to a concrete auxiliary guiding structure for cast-in-place pile casting. Background Technology

[0002] Cast-in-place piles are a type of pile foundation where a hole is drilled directly at the pile location, a reinforcing cage is placed inside the hole, and concrete is poured in. During concrete pouring for cast-in-place piles, given the considerable depth of the pouring hole, directly dumping the concrete into it not only makes it difficult to ensure uniform concrete distribution but also easily leads to quality problems such as concrete segregation and pipe blockage. Therefore, to ensure that the concrete can be smoothly and accurately delivered into the pouring hole, a specialized auxiliary guiding structure is needed to guide the concrete into the hole first, thus ensuring the smooth progress of subsequent pouring work and the quality of the pile body.

[0003] A search revealed a Chinese patent application with patent number CN202421086258.3, which discloses an auxiliary device for pouring concrete for cast-in-place piles. The device uses a bidirectional screw to drive two sets of clamping plates to move relative to each other during rotation, thereby clamping and fixing the connecting pipe. When the connecting pipe and the pouring hose are pouring concrete, the device ensures the stability of the connecting pipe and the pouring hose. By setting the opening of the clamping plate to a "V" shape, the two clamping plates can clamp and fix pouring components with different outer diameters.

[0004] In practical applications, the position of the guide pipe in existing concrete auxiliary guiding structures is fixed and it is inserted into the grouting hole. When the concrete grouting position is flush with the bottom of the guide pipe, subsequent grouting work will face many problems.

[0005] When the guide pipe is inserted too deeply into the poured concrete, concrete will gradually accumulate inside and around the guide pipe. Continuing to pour concrete at this point will result in pressure from the already poured concrete, and this pressure will continue to accumulate as the amount of concrete poured increases. On one hand, this pressure will hinder the flow of concrete inside the guide pipe, increasing the flow resistance of the concrete within the guide pipe. Utility Model Content

[0006] The purpose of this utility model is to provide a concrete auxiliary guiding structure for cast-in-place pile pouring, which aims to solve the problem in the prior art where, when the guide pipe is inserted too deeply into the cast-in-place concrete, the concrete gradually accumulates inside and around the guide pipe. If the pouring continues, it will be subjected to pressure from the already poured concrete. As the pouring volume continues to increase, this pressure will continue to accumulate. On the one hand, the pressure will hinder the flow of concrete inside the guide pipe, thus increasing the flow resistance of the concrete inside the guide pipe.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a concrete auxiliary guiding structure for cast-in-place pile pouring, comprising a base support and a guiding pipe, wherein a guiding component is connected to the inner wall of the base support, a spring strip connected to the base support is connected to the side surface of the guiding component, a fixing sleeve located at the center of the base support is connected to the end of the guiding component, the guiding pipe passes through the interior of the fixing sleeve, a conical bucket is connected through the top of the guiding pipe, a rack is connected to the side surface of the guiding pipe, a first drive motor is mounted on the surface of the fixing sleeve, and a gear disk meshing with the rack is connected to the output end of the first drive motor.

[0008] As a preferred embodiment of the concrete auxiliary guiding structure for cast-in-place pile pouring according to this utility model, the guiding component includes a guide sleeve, a guide rod, and a limiting block. A guide sleeve connected to the spring strip is connected to each side of the fixed sleeve. A guide rod connected to the inner wall of the base support is inserted into the interior of each of the two fixed sleeves. A limiting block located inside the guide sleeve is connected to the end of each of the two guide rods.

[0009] As a preferred embodiment of the concrete auxiliary guiding structure for cast-in-place pile pouring according to this utility model, the diameter of the guide rod is adapted to the size of the opening at the end of the guide sleeve near the guide rod, and the diameter of the limiting block is larger than the diameter of the guide rod.

[0010] As a preferred embodiment of the concrete auxiliary guiding structure for cast-in-place pile pouring according to this utility model, the inner wall of the fixing sleeve is provided with a first limiting groove that matches the cross-sectional dimensions of the rack.

[0011] As a preferred embodiment of the concrete auxiliary guiding structure for cast-in-place pile pouring according to this utility model, a guide strip is connected to the side of the guide pipe away from the rack, and a second limiting groove adapted to the cross-sectional size of the guide strip is provided on the inner wall of the fixing sleeve.

[0012] As a preferred embodiment of the concrete auxiliary guiding structure for cast-in-place pile pouring according to this utility model, a second drive motor is installed on the surface of the base support, and an eccentric wheel is connected to the output end of the second drive motor.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, the first drive motor drives the gear disk to rotate during operation. When the gear disk rotates, it drives the rack to move longitudinally. When the rack moves longitudinally, it drives the guide tube to slide longitudinally inside the fixed sleeve. This can prevent the guide tube from being inserted too deeply into the concrete inside the grouting hole, which would result in a slow discharge speed of the concrete slurry inside the guide tube, thereby increasing the speed of grouting pile pouring.

[0015] In this invention, the second drive motor drives the eccentric wheel to rotate during operation. When the eccentric wheel rotates, it squeezes the guide tube. At the same time, the fixed sleeve drives the guide sleeve to slide on the surface of the guide rod and causes the spring strip to deform. After the force disappears, the spring strip drives the fixed sleeve to reset through the guide sleeve. In this way, the fixed sleeve can drive the guide tube to vibrate, thereby accelerating the pouring of concrete inside the guide tube. Furthermore, when the concrete is poured to the shallow surface of the guide tube, the vibration of the guide tube can expel air bubbles in the concrete and reduce the gap between the steel reinforcement and the concrete, thereby improving the density and uniformity of the cast-in-place pile. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the guide tube drive structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the fixing sleeve and the guide tube of this utility model;

[0021] Figure 5 This is a cross-sectional structural diagram of the guide component of this utility model.

[0022] In the diagram: 1. Base bracket; 2. Guide assembly; 201. Guide sleeve; 202. Guide rod; 203. Limiting block; 3. Spring strip; 4. Fixing sleeve; 5. Guide tube; 6. Conical bucket; 7. Rack; 8. First limiting groove; 9. Guide strip; 10. Second limiting groove; 11. First drive motor; 12. Gear disk; 13. Second drive motor; 14. Eccentric wheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5The present invention provides the following technical solution: a concrete auxiliary guiding structure for cast-in-place pile pouring, comprising a base support 1 and a guiding pipe 5, a guiding component 2 connected to the inner wall of the base support 1, a spring strip 3 connected to the base support 1 connected to the side surface of the guiding component 2, a fixing sleeve 4 located at the center of the base support 1 connected to the end of the guiding component 2, the guiding pipe 5 penetrating through the inside of the fixing sleeve 4, a conical bucket 6 connected through the top of the guiding pipe 5, a rack 7 connected to the side surface of the guiding pipe 5, a first drive motor 11 mounted on the surface of the fixing sleeve 4, and a gear disk 12 meshing with the rack 7 connected to the output end of the first drive motor 11.

[0025] Preferably, the guide assembly 2 includes a guide sleeve 201, a guide rod 202 and a limiting block 203. A guide sleeve 201 connected to the spring strip 3 is connected to each side of the fixed sleeve 4. A guide rod 202 connected to the inner wall of the base bracket 1 is inserted into the interior of each of the two fixed sleeves 4. A limiting block 203 located inside the guide sleeve 201 is connected to the end of each of the two guide rods 202.

[0026] In practical use, when the fixed sleeve 4 is subjected to a force, it can drive the guide sleeve 201 to slide on the surface of the guide rod 202. When the fixed sleeve 4 moves laterally, it can drive the spring strip 3 to deform. After the force on the fixed sleeve 4 disappears, the spring strip 3 can drive the guide sleeve 201 to reset through its own elasticity.

[0027] Preferably, the diameter of the guide rod 202 is adapted to the size of the opening at the end of the guide sleeve 201 near the guide rod 202, and the diameter of the limiting block 203 is larger than the diameter of the guide rod 202.

[0028] In practical use, the setting of the limiting block 203 can prevent the guide sleeve 201 from detaching from the end of the guide rod 202 when it slides laterally.

[0029] Preferably, the inner wall of the fixing sleeve 4 is provided with a first limiting groove 8 that matches the cross-sectional dimensions of the rack 7.

[0030] Preferably, a guide strip 9 is connected to the side of the guide tube 5 away from the rack 7, and a second limiting groove 10 adapted to the cross-sectional size of the guide strip 9 is provided on the inner wall of the fixing sleeve 4.

[0031] In practical use, when the guide tube 5 is subjected to a force, it can drive the guide strip 9 to slide inside the second limiting groove 10, which can limit the movement direction of the guide tube 5 and thus maintain the stability of the movement of the guide tube 5.

[0032] Preferably, a second drive motor 13 is mounted on the surface of the base bracket 1, and an eccentric wheel 14 is connected to the output end of the second drive motor 13.

[0033] In practical use, when the second drive motor 13 is running, it can drive the eccentric wheel 14 to rotate. The rotation of the eccentric wheel 14 can squeeze and vibrate the guide tube 5, thereby facilitating the discharge of concrete slurry inside the guide tube 5.

[0034] Working principle: When using the concrete auxiliary guide structure for casting piles, the steel cage is first placed inside the casting hole. Then, the base support 1 is placed above the casting hole, and the guide pipe 5 is inserted into the casting hole. Then, the concrete is transported to the inside of the conical bucket 6 by the concrete pump. Then, the concrete inside the conical bucket 6 is injected into the casting hole through the guide pipe 5. At the same time, the second drive motor 13 can be run. When the second drive motor 13 runs, it can drive the eccentric wheel 14 to rotate. When the eccentric wheel 14 rotates, it can squeeze the guide pipe 5. When the guide pipe 5 is squeezed, it can drive the guide sleeve 201 to slide on the surface of the guide rod 202 through the fixed sleeve 4 and drive the spring strip 3 to deform. After the force disappears, the spring strip 3 drives the fixed sleeve 4 to reset through the guide sleeve 201. In this way, the guide pipe 5 can be vibrated through the fixed sleeve 4, which can facilitate the discharge of concrete inside the guide pipe 5.

[0035] When the concrete is poured to the shallow surface of the guide pipe 5, the air bubbles in the concrete can be expelled by the vibration of the guide pipe 5, and the gap between the steel bars and the concrete can be reduced.

[0036] During subsequent grouting, the first drive motor 11 can be operated. When the first drive motor 11 is running, it can drive the gear disk 12 to rotate. Under the limiting action of the guide bar 9 and the second limiting groove 10, when the gear disk 12 rotates, it can drive the rack 7 to move longitudinally through the meshing joint. When the rack 7 moves longitudinally, it can drive the guide tube 5 to slide longitudinally inside the fixed sleeve 4. This can prevent the guide tube 5 from being inserted too deeply into the concrete inside the grouting hole, which would cause the concrete slurry inside the guide tube 5 to discharge slowly.

[0037] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A concrete auxiliary guiding structure for cast-in-place pile pouring, comprising a base support (1) and a guiding pipe (5), characterized in that: The inner wall of the base support (1) is connected to a guide assembly (2). The side surface of the guide assembly (2) is connected to a spring strip (3) connected to the base support (1). The end of the guide assembly (2) is connected to a fixing sleeve (4) located at the center of the base support (1). A guide tube (5) passes through the inside of the fixing sleeve (4). A conical bucket (6) is connected through the top of the guide tube (5). A rack (7) is connected to the side surface of the guide tube (5). A first drive motor (11) is installed on the surface of the fixing sleeve (4). The output end of the first drive motor (11) is connected to a gear disk (12) that meshes with the rack (7).

2. The concrete auxiliary guiding structure for cast-in-place pile pouring according to claim 1, characterized in that: The guide assembly (2) includes a guide sleeve (201), a guide rod (202), and a limiting block (203). Each side of the fixed sleeve (4) is connected to a guide sleeve (201) that is connected to the spring strip (3). Each of the two fixed sleeves (4) is inserted into a guide rod (202) that is connected to the inner wall of the base bracket (1). Each end of the two guide rods (202) is connected to a limiting block (203) located inside the guide sleeve (201).

3. The concrete auxiliary guiding structure for cast-in-place pile pouring according to claim 2, characterized in that: The diameter of the guide rod (202) is adapted to the size of the opening of the guide sleeve (201) near the guide rod (202), and the diameter of the limiting block (203) is larger than the diameter of the guide rod (202).

4. The concrete auxiliary guiding structure for cast-in-place pile pouring according to claim 1, characterized in that: The inner wall of the fixed sleeve (4) is provided with a first limiting groove (8) that matches the cross-sectional dimensions of the rack (7).

5. A concrete auxiliary guiding structure for cast-in-place pile pouring according to claim 1, characterized in that: The guide tube (5) is connected to a guide strip (9) on the side away from the rack (7), and the inner wall of the fixing sleeve (4) is provided with a second limiting groove (10) that matches the cross-sectional size of the guide strip (9).

6. The concrete auxiliary guiding structure for cast-in-place pile pouring according to claim 1, characterized in that: A second drive motor (13) is mounted on the surface of the base support (1), and an eccentric wheel (14) is connected to the output end of the second drive motor (13).

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