A multi-section precast pile and a construction device thereof

Abstract

The application relates to the technical field of precast pile construction, in particular to a multi-section precast pile and a construction device thereof. The construction device is used for installing and constructing the multi-section precast pile, and comprises: a counterforce frame provided with a counterforce plate; and a pushing-out mechanism rotationally arranged on the counterforce frame and located below the counterforce plate. In the construction device, the counterforce frame is first fixed at a precast column installation position, then a unit section is fixed at the bottom end of the pushing-out mechanism, pressure is applied to the unit section by the pushing-out mechanism, and the unit section is pressed into the installation position; after one unit section is pressed into place, the next unit section is fixed at the bottom end of the pushing-out mechanism, the pushing-out mechanism is first controlled to rotate, the two unit sections are mutually engaged, and the pushing-out mechanism is controlled to press the unit sections, so that the installation process of the precast pile is more convenient, and the installation and construction efficiency of the precast pile can be greatly improved.

Description

Technical Field

[0001] This application relates to the field of precast pile construction technology, and in particular to a multi-section precast pile and its construction device. Background Technology

[0002] Precast piles are a widely used type of pile in my country. They are prefabricated in a precast component factory or on the construction site and then driven into the soil at the designed location using pile driving equipment. Their characteristics include strength and durability, immunity to groundwater or damp environments, ability to withstand large loads, high degree of mechanization in construction, fast progress, and adaptability to different soil layers. Precast piles consist of a steel reinforcement cage, on which concrete is poured to form the pile. Precast piles have low production costs, low reinforcement ratios, simple construction, relatively low technical difficulty, short construction periods, and allow for continuous construction. However, the installation of existing precast piles often uses hammer driving or static pressure driving methods, which result in a long construction stroke and low construction efficiency.

[0003] Therefore, there is a need to provide an improved technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0004] The purpose of this application is to provide a multi-section precast column and its construction device to solve or alleviate the problems existing in the prior art.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] This application provides a multi-section precast pile, the precast pile comprising multiple interlocking unit sections, each unit section including a bottom section, multiple middle sections and a top section; any two adjacent unit sections are provided with a protrusion and a groove, and the two adjacent unit sections are connected by interlocking through the protrusion and the groove;

[0007] Multiple first locking blocks are evenly distributed on the outer peripheral surface of the end of the protrusion, and multiple second locking blocks are evenly distributed on the inner peripheral surface of the end of the groove. When the protrusion and the groove engage with each other, the first locking blocks and the second locking blocks overlap each other in the extension direction of the precast pile.

[0008] Preferably, in the multi-section precast pile described above, the top end of the bottom section is provided with a groove.

[0009] The bottom end of the middle section is provided with a protrusion, and the top end of the middle section is provided with a groove.

[0010] The bottom end of the top section is provided with a protrusion.

[0011] In the multi-section precast pile described above, preferably, the center of both the top section and the middle section is provided with a vertical channel, and the vertical channels of two adjacent unit sections are interconnected.

[0012] Multiple horizontal channels are evenly distributed on the protrusions of the top and middle sections, and each horizontal channel is connected to a vertical channel.

[0013] This application also provides a construction device for multi-section precast piles, which is used for installing the aforementioned multi-section precast piles. The construction device includes:

[0014] A reaction frame, on which a reaction plate is provided;

[0015] The ejection mechanism is rotatably mounted on the reaction frame and is located below the reaction plate.

[0016] In the construction device for multi-section precast piles described above, preferably, the ejection mechanism is a hydraulic cylinder.

[0017] In the construction device for multi-section precast piles as described above, preferably, a driven gear is fixed around the periphery of the hydraulic cylinder, and a driving gear is rotatably mounted on the reaction frame, with the driving gear meshing with the driven gear for transmission.

[0018] In the construction device for multi-section precast piles as described above, preferably, a rotating bearing is sleeved around the hydraulic cylinder, and the rotating bearing is located between the driven gear and the reaction frame.

[0019] Compared with the closest prior art, the technical solution of this application has the following beneficial effects:

[0020] In this construction device, the reaction frame is first fixed to the precast column to be installed, and then the unit section is fixed to the bottom end of the ejection mechanism. The ejection mechanism applies pressure to the unit section, pressing it into the installation position. After one unit section is pressed into place, the next unit section is fixed to the bottom end of the ejection mechanism. The ejection mechanism is first rotated to make the two unit sections interlock, and then the ejection mechanism is pressed down to press the unit section. This makes the installation process of precast piles more convenient and can greatly improve the installation efficiency of precast piles.

[0021] After the precast pile is fully pressed into the installation position, grouting is performed into the vertical channels of the top section. The grout fills all vertical channels, connecting all unit sections vertically into one. At the same time, the grout in the vertical channels enters the horizontal channels, and the grout in the horizontal channels enters the gaps between adjacent unit sections, making the gaps between adjacent unit sections more firmly connected into one. This allows the precast pile to be connected as a whole, with better structural strength, and thus able to withstand greater load-bearing capacity. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein:

[0023] Figure 1 This is a structural schematic diagram of a construction device and precast piles provided according to some embodiments of this application;

[0024] Figure 2 This is a schematic diagram of the structure of a prefabrication device provided according to some embodiments of this application;

[0025] Figure 3 This is a schematic diagram of the structure of the groove provided according to some embodiments of this application;

[0026] Figure 4 This is a schematic diagram of the structure of a protrusion provided according to some embodiments of this application.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Bottom section; 2. Middle section; 3. Top section; 4. Reaction frame; 5. Reaction plate; 6. Driven gear; 7. Driven gear; 8. Rotary bearing; 9. Servo motor; 10. Push-out mechanism; 11. Protrusion; 111. First locking block; 12. Groove; 121. Second locking block; 13. Vertical channel; 14. Horizontal channel. Detailed Implementation

[0029] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present application without departing from the scope or spirit thereof. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present application encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0030] In the following description, the terms "first / second / third" are used merely to distinguish similar objects and do not represent a specific order of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing embodiments of this disclosure only and is not intended to limit this disclosure.

[0032] In the description of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and do not require that this application be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application. The terms "connected," "linked," and "set up" used in this application should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; direct connections or indirect connections through intermediate components; wired connections, radio connections, or wireless communication signal connections. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0033] The present application will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present application can be combined with each other.

[0034] According to specific embodiments of this application, such as Figure 1-4 As shown, this application provides a multi-section precast pile, which includes multiple interlocking unit sections. Each unit section includes a bottom section 1, multiple middle sections 2, and a top section 3. A protrusion 11 and a groove 12 are provided between any two adjacent unit sections, and the two adjacent unit sections are connected by interlocking through the protrusion 11 and the groove 12.

[0035] Multiple first locking blocks 111 are evenly distributed on the outer peripheral surface of the end of the protrusion 11, and multiple second locking blocks 121 are evenly distributed on the inner peripheral surface of the end of the groove 12. When the protrusion 11 and the groove 12 engage with each other, the first locking blocks 111 and the second locking blocks 121 overlap each other in the extension direction of the precast pile.

[0036] In this precast pile, the precast column is divided into multiple unit sections and connected. Adjacent unit sections are connected by interlocking protrusions 11 and grooves 12. When installing the precast pile, the bottom section 1 is first pressed into the installation position, then the middle section 2 is interlocked with the bottom section 1, and then multiple middle sections 2 are pressed downward in sequence. It is best to connect the top section 3 to the middle section 2 and press the top section 3 completely into the installation position. By dividing the precast pile into multiple unit sections, only one unit section needs to be pressed in at a time when installing the precast pile, thereby shortening the construction stroke of the precast column each time, making the installation of the precast pile simpler and greatly improving the installation efficiency of the precast column.

[0037] When adjacent unit sections interlock, the protrusion 11 is first inserted into the groove 12, and the first locking block 111 is inserted into the groove 12 from the gap between the adjacent second locking blocks 121. At this time, the plane of the first locking block 111 is located below the plane of the second locking block 121. Then, the unit section located at the top is rotated so that the first locking block 111 is rotated to the position directly below the second locking block 121. At this time, the first locking block 111 and the second locking block 121 coincide with each other in the extension direction of the precast pile, thereby completing the interlocking of the protrusion 11 and the groove 12, so that the two adjacent unit sections can be firmly interlocked together.

[0038] In this embodiment, the end of the protrusion 11 is provided with three first locking blocks 111, and the end of the groove 12 is provided with three second locking blocks 121, and the size of the first locking blocks 111 is the same as that of the second locking blocks 121.

[0039] The bottom section 1 has a groove 12 at its top end; the middle section 2 has a protrusion 11 at its bottom end and a groove 12 at its top end; the top section 3 has a protrusion 11 at its bottom end.

[0040] In this embodiment, the protrusion 11 at the bottom of the top section 3 engages in the groove 12 at the top of the middle section 2, and the protrusion 11 at the bottom of the middle section 2 engages in the groove 12 at the top of the bottom section 1; so as to facilitate the engagement and connection of adjacent unit sections.

[0041] A vertical channel 13 is provided through the center of both the top section 3 and the middle section 2, and the vertical channels 13 of two adjacent unit sections are interconnected; multiple horizontal channels 14 are evenly distributed on the protrusions 11 of the top section 3 and the middle section 2, and each horizontal channel 14 is connected to the vertical channel 13.

[0042] In this embodiment, after the precast pile is fully pressed into the installation position, grouting is performed into the vertical channel 13 of the top section 3. The grout fills all the vertical channels 13, connecting all the unit sections vertically into one. At the same time, the grout in the vertical channels 13 enters the horizontal channel 14. The grout in the horizontal channel 14 enters the gaps between adjacent unit sections, making the gaps between adjacent unit sections more firmly connected into one, thereby enabling the precast piles to be connected into a whole, with better structural strength, and thus able to withstand greater load-bearing capacity.

[0043] In other embodiments, a vertical channel 13 may be provided at the center of the bottom section 1 to allow the grout to completely penetrate the vertical direction of the entire precast pile, thereby enhancing the structural strength of the precast pile.

[0044] This application also provides a construction device for multi-section precast piles, which is used for installing the aforementioned multi-section precast piles. The construction device includes:

[0045] The reaction frame 4 is equipped with a reaction plate 5.

[0046] The ejection mechanism 10 is rotatably mounted on the reaction frame 4 and is located below the reaction plate 5.

[0047] In this construction device, the reaction frame 4 is first fixed at the precast column to be installed position, and then the unit section is fixed at the bottom end of the ejection mechanism 10. The ejection mechanism 10 applies pressure to the unit section, pressing it into the installation position. The reaction plate 5 provides a force-bearing foundation for the ejection mechanism 10, so that the ejection mechanism 10 can apply pressure to the unit section. After one unit section is pressed into place, the next unit section is fixed at the bottom end of the ejection mechanism 10. The ejection mechanism 10 is first controlled to rotate so that the two unit sections interlock. Then, the ejection mechanism 10 is controlled to press down on the unit section, making the installation process of the precast pile more convenient and greatly improving the installation efficiency of the precast pile.

[0048] The ejection mechanism 10 is a hydraulic cylinder. In this embodiment, the ejection mechanism 10 is a hydraulic cylinder. Hydraulic cylinders have a simple structure, reliable operation, stable running, and high control precision, which is beneficial to improving the installation and construction efficiency of precast columns.

[0049] In this embodiment, a connecting plate is provided at the bottom of the extended end of the hydraulic cylinder. The connecting plate has multiple through holes, and threaded holes are provided at the top of the bottom section 1, the middle section 2, and the top section 3. Bolts are passed through the through holes on the connecting plate and connected to the threaded holes of the bottom section 1, the middle section 2, and the top section 3, so that the unit section is fixed on the extended end of the hydraulic cylinder, thereby facilitating the hydraulic cylinder to drive the unit section to rotate or move.

[0050] A driven gear 6 is fixed around the periphery of the hydraulic cylinder, and a driving gear 7 is rotatably mounted on the reaction frame 4. The driving gear 7 meshes with the driven gear 6 for transmission.

[0051] In this embodiment, the driven gear 6 is fixed on the cylinder barrel with the largest outer diameter of the hydraulic cylinder, so that the rotational movement of the hydraulic cylinder driven by the driven gear 6 does not interfere with the extension and retraction movement of the hydraulic cylinder; at the same time, a servo motor 9 is provided on the reaction frame 4, and the driving gear 7 is fixed on the output shaft of the servo motor 9. The driving gear 7 is driven to rotate by the servo motor 9, and the driving gear 7 meshes with the driven gear 6 to drive the hydraulic cylinder to rotate.

[0052] A rotating bearing 8 is fitted around the hydraulic cylinder, and the rotating bearing 8 is located between the driven gear 6 and the reaction frame 4.

[0053] In this embodiment, the rotary bearing 8 can be a thrust ball bearing, so that the rotary bearing 8 has a better load-bearing capacity in the axial direction of the hydraulic cylinder.

[0054] When using this construction device to install precast piles, the following steps are included:

[0055] Step S1: Fix the reaction frame 4 of the construction device at the precast pile positioning and installation point;

[0056] Step S2: Fix the bottom section 1 to the extended end of the hydraulic cylinder, start the hydraulic cylinder to extend it, press the bottom section 1 into the positioning mounting point, separate the bottom section 1 from the hydraulic cylinder, and control the hydraulic cylinder to reset.

[0057] Step S3: Fix the middle section 2 on the extended end of the hydraulic cylinder, and after the protrusion 11 of the middle section 2 is inserted into the groove 12 of the bottom section 1, control the drive gear 7 to rotate, and the hydraulic cylinder drives the middle section 2 to rotate, so that the two adjacent unit sections mesh with each other.

[0058] Then, start the hydraulic cylinder to extend it, press the middle section 2 into the positioning and installation point, separate the middle section 2 from the hydraulic cylinder, and control the hydraulic cylinder to reset; after each unit section is installed, perform a measurement and adjustment, repeat this step until multiple middle sections 2 are installed.

[0059] Step S4: Fix the top section 3 to the extended end of the hydraulic cylinder, and after the protrusion 11 of the top section 3 is inserted into the groove 12 of the middle section 2, control the drive gear 7 to rotate, and the hydraulic cylinder drives the middle section 2 to rotate, so that the two adjacent unit sections mesh with each other.

[0060] Then, start the hydraulic cylinder to extend it, press the top section 3 into the positioning mounting point, separate the top section 3 from the hydraulic cylinder, and control the hydraulic cylinder to reset.

[0061] Step S5: Perform an overall measurement and adjustment of the precast piles;

[0062] Step S6: Remove the construction device from the positioning and installation point, and grout into the vertical channel 13 of the top section 3 to connect the multiple unit sections into a whole.

[0063] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multi-section precast pile, characterized in that; The precast pile includes multiple interlocking unit sections, each unit section including a bottom section, multiple middle sections and a top section; any two adjacent unit sections are provided with a protrusion and a groove, and the two adjacent unit sections are connected by interlocking through the protrusion and the groove. Multiple first locking blocks are evenly distributed on the outer peripheral surface of the end of the protrusion, and multiple second locking blocks are evenly distributed on the inner peripheral surface of the end of the groove. When the protrusion and the groove engage with each other, the first locking blocks and the second locking blocks overlap each other in the extension direction of the precast pile.

2. The multi-section precast pile according to claim 1, characterized in that; The top of the bottom section is provided with a groove; The bottom end of the middle section is provided with a protrusion, and the top end of the middle section is provided with a groove. The bottom end of the top section is provided with a protrusion.

3. The multi-section precast pile according to claim 2, characterized in that; The top section and the middle section each have a vertical channel running through their center, and the vertical channels of two adjacent unit sections are interconnected. Multiple horizontal channels are evenly distributed on the protrusions of the top and middle sections, and each horizontal channel is connected to a vertical channel.

4. A construction device for multi-section precast piles, characterized in that, The construction device is used for installing the multi-section precast piles as described in any one of claims 1-3, and the construction device includes: A reaction frame, on which a reaction plate is provided; The ejection mechanism is rotatably mounted on the reaction frame and is located below the reaction plate.

5. The construction device for multi-section precast piles according to claim 4, characterized in that, The ejection mechanism is a hydraulic cylinder.

6. The construction device for multi-section precast piles according to claim 5, characterized in that, A driven gear is fixed to the periphery of the hydraulic cylinder, and a driving gear is rotatably mounted on the reaction frame. The driving gear meshes with the driven gear for transmission.

7. The construction device for multi-section precast piles according to claim 6, characterized in that, The hydraulic cylinder is fitted with a rotating bearing, which is located between the driven gear and the reaction frame.

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