Quick docking assembly and quick docking mechanism

Abstract

The present invention provides a quick docking assembly and a quick docking mechanism, a quick docking assembly plug-in and a base, the plug-in comprises a first fixed portion, a plug-in portion and an extension portion between the first fixed portion and the plug-in portion, the plug-in portion is convexly arranged on the extension portion and a step surface is formed between the plug-in portion and the extension portion; the base comprises a second fixed portion and a plurality of fins connected to the second fixed portion, the plurality of fins are arranged around each other; the plug-in can pass through an opening formed by the plurality of fins through elastic expansion of the fins, the fins can elastically contract and surround the extension portion, and the end faces of the fins are arranged relative to the step surface of the plug-in; a second groove is provided on the plug-in in the quick docking assembly provided by the present invention, which can be used for the outflow of steamed water, so as to avoid the water remaining in the quick docking assembly and accelerating the corrosion of the plug-in, so as to extend the service life of the quick docking assembly.

Description

Technical Field

[0001] The invention relates to the technical field of construction, and in particular to a quick docking component and a quick docking mechanism. Background Art

[0002] In the field of construction technology, in order to facilitate production and processing and reduce construction time, reinforced concrete precast piles are often spliced ​​to ensure the length of the precast piles. In order to enable two reinforced concrete precast piles to be quickly and firmly joined, quick docking assemblies are generally used to connect the steel bars inside the two reinforced concrete precast piles. Before the precast piles are spliced, the precast piles are usually steamed to improve the hydration and hardening degree, strength and durability of the concrete in the precast piles. However, a large amount of steam will be generated during steaming, and the plug-in platform, base and other components in the current quick docking assembly are generally made of metal. If there is moisture in them, rust and passivation are likely to occur, resulting in a decrease in the strength of the quick docking assembly. Therefore, it is necessary to improve the existing quick docking assembly and quick docking mechanism. Summary of the invention

[0003] In view of this, it is necessary to provide an improved quick docking assembly and quick docking mechanism.

[0004] The present invention provides a quick docking assembly, comprising an inserting platform and a base, wherein the inserting platform comprises a first fixing portion, an inserting portion and an extension portion located between the first fixing portion and the inserting portion, wherein the inserting portion is protruding from the extension portion and a step surface is formed between the inserting portion and the extension portion; the base comprises a second fixing portion and a plurality of fins connected to the second fixing portion, wherein the plurality of fins are arranged around each other; the inserting platform can pass through an opening formed by the plurality of fins through elastic expansion of the fins, the fins can elastically contract and surround the extension portion, and the end faces of the fins are arranged opposite to the step surface of the inserting platform; a second groove is provided on the inserting platform, and the second groove is used for allowing steaming water to flow out.

[0005] In the quick docking assembly provided by the present invention, a second groove is provided on the plug-in table for the steam-cured water to flow out, so as to avoid the water remaining in the quick docking assembly and accelerating the corrosion of the plug-in table, so as to extend the service life of the quick docking assembly. In addition, the quick docking assembly provided by the present invention is easy to install. After the plug-in part of the plug-in table is inserted into the base, the fins will elastically shrink and surround the extended part of the base. The end of the fin abuts against the step surface of the plug-in table, and the abutting surface between the end of the fin and the step surface of the plug-in table is approximately annular, with a large abutting area, which can ensure the bonding strength between the first embedded element and the second embedded element, especially greatly improving the tensile performance; the fins can not only surround the extended part of the plug-in table, but also limit the extended part to prevent the extended part from shaking in the radial direction. In addition, the quick docking assembly provided by the present invention has a simple processing technology, low cost, and a wide range of applicable scenarios.

[0006] In one embodiment of the present invention, the second groove is annular.

[0007] In this way, the second groove is arranged in an annular shape on the insertion table, so that the retained moisture can be discharged from the quick docking assembly more quickly.

[0008] In one embodiment of the present invention, there are a plurality of second grooves, and the plurality of second grooves are distributed on the inserting platform.

[0009] In this way, the second groove can be provided only at the position where the steam-curing water is accumulated to guide the steam-curing water to adapt to different working conditions or different models of plug-in tables.

[0010] In one embodiment of the present invention, the cross-section of the second groove is triangular, rectangular, arc-shaped or trapezoidal.

[0011] With this arrangement, different shapes of second grooves can be selected for processing according to different models of quick docking components, which can not only prevent the second groove from affecting the use of the quick docking component, but also quickly guide the steam-cured moisture out of the second groove to prevent the steam-cured moisture from being retained in the second groove.

[0012] In one embodiment of the present invention, the surface of the second groove is coated with a hydrophobic layer.

[0013] Such an arrangement can not only prevent the stainless steel material of the insert table from being exposed to the outside, but also prevent the steam-cured moisture from remaining in the second groove.

[0014] In one embodiment of the present invention, the height of the second groove in the axial direction of the inserting platform is 0.5 mm to 20 mm; and / or,

[0015] The depth of the second groove in the radial direction of the inserting platform is 0.1 mm to 5 mm.

[0016] Such an arrangement can not only guide the steam-curing water, but also will not cause the strength of the quick-connect assembly to decrease.

[0017] In one embodiment of the present invention, there are six fins, and the six fins are arranged in a circular array on the extension portion of the base.

[0018] Such an arrangement facilitates the elastic expansion and elastic contraction of the fins, thereby extending the service life of the fins.

[0019] A quick docking mechanism comprises a first embedded element, a second embedded element and the above-mentioned quick docking assembly; the fixing portion of the insertion platform is connected to the first embedded element, the base is connected to the second embedded element, and one end of the steel bar is connected to the first embedded element or the second embedded element; the steel bar connected to the first embedded element and the steel bar connected to the second embedded element are connected via the quick docking assembly.

[0020] The quick docking mechanism can quickly connect the first embedded component and the second embedded component, saving construction time, and the first embedded component and the second embedded component after connection have high firmness, especially good tensile strength.

[0021] In one embodiment of the present invention, the outer wall of the first embedded element close to one end of the steel bar is a non-circular polygon; and / or,

[0022] The outer wall of the second embedded element relatively close to one end of the steel bar is a non-circular polygon.

[0023] Such arrangement facilitates installation and fixing of the first embedded component and the second embedded component.

[0024] In one embodiment of the present invention, the ends of the first embedded element or the second embedded element connected to the steel bar have a contraction opening, and the ends of the steel bar connected to the first embedded element or the second embedded element have a swage, and the contraction opening is used to limit the swage of the steel bar; or,

[0025] With such arrangement, the connection between the first embedded element or the second embedded element and the steel bar is simple, the construction time is short, and the connection firmness is high.

[0026] In one embodiment of the present invention, the first embedded element or the second embedded element is threadedly connected to the steel bar.

[0027] In this way, the threads on the steel bars can increase the adhesion between the steel bars and the concrete, so that the steel bars and the concrete are tightly combined. The two can cooperate with each other to jointly withstand external forces and increase the bearing strength of the precast piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of a quick docking assembly in one embodiment of the present invention;

[0029] Figure 2 for Figure 1 The structural schematic diagram of the plug-in station shown;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure of the base shown;

[0031] Figure 4 for Figure 3 A schematic diagram of a portion of the structure of the base shown;

[0032] Figure 5 A cross-sectional view of a quick docking mechanism in one embodiment of the present invention;

[0033] Figure 6 A cross-sectional view of a first pile body, a steel bar, a first embedded element and an insert in one embodiment of the present invention;

[0034] Figure 7 A cross-sectional view of a second pile body, a steel bar, a second embedded element and a base in one embodiment of the present invention;

[0035] Figure 8 for Figure 5 A schematic diagram of the use status of the quick docking mechanism shown;

[0036] Fig. 9 It is a cross-sectional view of a precast pile in one embodiment of the present invention.

[0037] 100, quick docking assembly; 10, plug-in table; 20, base; 11, first fixing part; 12, plug-in part; 13, extension part; 14, step surface; 15, second groove; 21, second fixing part; 22, fin; 221, end face; 200, quick docking mechanism; 210, first embedded component; 211, annular protrusion; 220, second embedded component; 300, precast pile; 301, first pile body; 302, second pile body; 310, steel bar; 311, upsetting head; 320, concrete; 330, pile hoop. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on 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. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0039] See also Figures 1 to 4 , Figure 1 It is a structural schematic diagram of a quick docking assembly 100 in one embodiment of the present invention; Figure 2 for Figure 1 The structural schematic diagram of the insertion station 10 is shown; Figure 3 for Figure 1 The structural schematic diagram of the base 20 is shown; Figure 4 for Figure 3 A partial structural schematic diagram of the base 20 is shown.

[0040] The present invention provides a quick docking assembly 100, which is used to connect two engineering parts. In this embodiment, the quick docking assembly 100 is used to connect the steel bars 310 in the precast pile 300. It can be understood that in other embodiments, the quick docking assembly 100 can also be used in other engineering fields, such as prefabricated buildings, and can also be used to connect steel bars in other use occasions, such as pouring concrete, etc.

[0041] The present invention provides a quick docking assembly 100, including a socket 10 and a base 20, the socket 10 includes a first fixing portion 11, a plug-in portion 12 and an extension portion 13 located between the first fixing portion 11 and the plug-in portion 12, the plug-in portion 12 is protruding from the extension portion 13 and a step surface 14 is formed between the plug-in portion 12 and the extension portion 13; the base 20 includes a second fixing portion 21 and a plurality of fins 22 connected to the second fixing portion 21, and the plurality of fins 22 are arranged around each other; the socket 10 can pass through an opening formed by the plurality of fins 22 through the elastic expansion of the fins 22, the fins 22 can elastically contract and surround the extension portion 13, and the end faces 221 of the fins 22 are arranged relative to the step surface 14 of the socket 10.

[0042] The insert 10 is a columnar part, the first fixing part 11 is used to fix with the external part, and the plug-in part 12 is used to insert into the buckle. For the convenience of plugging, as a preference, the insert 10 is roughly cylindrical; in other embodiments, the insert 10 can also be other shapes such as a square column, a tapered column, etc. In order to increase the load-bearing capacity of the quick docking assembly 100, the insert 10 is made of solid material. It is understandable that in other embodiments, according to different load-bearing requirements, the insert 10 can also be made of hollow material.

[0043] The first fixing portion 11 is used to connect with the first embedded element 210. In this embodiment, the outer peripheral wall of the first fixing portion 11 is provided with an external thread, and the inner peripheral wall of the first embedded element 210 is provided with an internal thread, and the two are fixedly connected by threads. It can be understood that in other embodiments, the first fixing portion 11 and the first embedded element 210 can also be connected by other methods such as welding, clamping, and riveting.

[0044] The plug-in portion 12 can be inserted through and abut against the end surface 221 of the base 20. When the plug-in portion 12 is inserted through the base 20, the base 20 can be elastically expanded. After the plug-in portion 12 passes through the base 20, the base 20 elastically contracts and surrounds the extension portion 13, which can limit the radial movement of the insertion platform 10.

[0045] The extension portion 13 is used to connect the first fixing portion 11 and the plug-in portion 12 , and when the plug-in portion 12 passes through the base 20 , the extension portion 13 is surrounded and fixed by the base 20 .

[0046] The base 20 is roughly in the shape of a hollow column and matches the inserting platform 10. Preferably, the base 20 is roughly in the shape of a hollow cylinder. It is understandable that in other embodiments, the base 20 can also match the inserting platform 10 to form other shapes such as a square cylinder, a conical cylinder, etc.

[0047] The second fixing portion 21 is used to connect with the second embedded element 220. In this embodiment, the outer peripheral wall of the second fixing portion 21 is provided with an external thread, and the inner peripheral wall of the second embedded element 220 is provided with an internal thread, and the two are fixedly connected by threads. It can be understood that in other embodiments, the second fixing portion 21 and the second embedded element 220 can also be connected by other methods such as welding, clamping, and riveting.

[0048] The plurality of fins 22 are surrounded and formed into a hollow column, and there is a certain gap between each two adjacent fins 22 to allow the fins 22 to elastically expand and elastically contract; the fins 22 can be elastically expanded to allow the plug-in portion 12 to pass through, and when the plug-in portion 12 passes through the fins 22, the fins 22 elastically contract and surround the extension portion 13 of the inserting platform 10. Preferably, in order to balance the forces on the plurality of fins 22, the plurality of fins 22 are evenly arranged in a circumferential direction with the axis of the base 20 as the center.

[0049] In this embodiment, the inserting platform 10 and the base 20 are both made of stainless steel. In other embodiments, they can also be made of other materials.

[0050] The use process of the quick docking assembly 100 is as follows: the plug-in portion 12 and the extension portion 13 of the socket 10 are extended into the inner wall of the base 20 and moved along the insertion direction α, and the plug-in portion 12 of the socket 10 applies pressure to the fin 22, so that the fin 22 elastically expands until the plug-in portion 12 passes through the fin 22; at the moment when the plug-in portion 12 passes through the fin 22, the fin 22 elastically contracts and surrounds the extension portion 13, and when a force in the opposite direction of the insertion direction α is applied to the socket 10, the end of the fin 22 will abut against the step surface 14 between the plug-in portion 12 and the extension portion 13 and limit the socket 10.

[0051] It should be noted that the insertion direction α referred to in the present invention is the direction from the fixing portion to the plug-in portion 12, i.e., the direction of the arrow shown in the figure. It is understandable that the insertion direction α can be but is not limited to the above directions, and even if there is a partial angle deviation, it should also be included in the protection scope of the present invention.

[0052] The quick docking assembly 100 provided by the present invention is easy to install. After the plug-in portion 12 of the plug-in table 10 is inserted into the base 20, the fins 22 will elastically shrink and surround the extension portion 13 of the base 20. The end of the fin 22 abuts against the step surface 14 of the plug-in table 10, and the abutting surface between the end of the fin 22 and the step surface 14 of the plug-in table 10 is approximately annular, with a large abutting area, which can ensure the bonding strength between the first embedded element 210 and the second embedded element 220, especially greatly improving the tensile performance; the fins 22 can not only surround the extension portion 13 of the plug-in table 10, but also limit the extension portion 13 to prevent the extension portion 13 from shaking in the radial direction. In addition, the quick docking assembly 100 provided by the present invention has a simple processing technology, low cost, and a wide range of applicable scenarios.

[0053] Before precast piles are assembled, they are usually steam-cured to improve the hydration and hardening degree, strength and durability of concrete in the precast piles. However, a large amount of steam is generated during steam-curing, and the plug-in platform, base and other components in the current quick docking components are generally made of metal. If there is moisture in them, it is easy to cause rust and passivation, resulting in a decrease in the strength of the quick docking components. Therefore, it is necessary to improve the existing quick docking components.

[0054] The inserting platform 10 in the quick docking assembly 100 of the present invention is also provided with a second groove 15, and the second groove 15 is used for the steaming water to flow out.

[0055] The inserting platform 10 provided by the present invention is provided with a second groove 15 for the steam-cured water to flow out, so as to prevent the water from being retained in the quick docking assembly 100 and accelerating the corrosion of the inserting platform 10, thereby extending the service life of the quick docking assembly 100.

[0056] In one embodiment of the present invention, the second groove 15 is annular.

[0057] In this way, the second groove 15 is annularly arranged on the inserting platform 10 , and has a large flow area, so that the retained moisture can be discharged from the quick docking assembly 100 more quickly.

[0058] In one embodiment of the present invention, there are a plurality of second grooves 15 , and the plurality of second grooves 15 are distributed on the inserting platform 10 .

[0059] In this way, the second groove 15 can be provided only at the position where the steaming water is accumulated to guide the steaming water so as to adapt to different working conditions or different models of the inserting table 10.

[0060] In one embodiment of the present invention, the cross section of the second groove 15 is triangular, rectangular, arc-shaped or trapezoidal.

[0061] With such a configuration, different shapes of second grooves 15 can be selected for processing according to different models of quick docking components 100, which can not only prevent the second groove 15 from affecting the use of the quick docking component 100, but also quickly guide the steam-cured moisture out of the second groove 15 to prevent the steam-cured moisture from being retained in the second groove 15.

[0062] It is understandable that in other embodiments, the cross-section of the second groove 15 may also be other shapes as long as it can play the role of conducting away the steam-cured water.

[0063] In one embodiment of the present invention, the surface of the second groove 15 is coated with a hydrophobic layer (not shown).

[0064] Such a configuration can not only prevent the stainless steel material of the inserting table 10 from being exposed to the outside, but also prevent the steam-cured water from remaining in the second groove 15 .

[0065] In one embodiment, the hydrophobic layer is a hydrophobic coating made of polytetrafluoroethylene, fluorinated polyethylene, fluorocarbon wax, polyolefin, polycarbonate, polyamide, polyacrylonitrile, polyester, etc. It is understandable that in other embodiments, other hydrophobic materials can also be used to make the hydrophobic coating, as long as they are hydrophobic and have good adhesion to the material of the insert 1010.

[0066] In one embodiment of the present invention, the height of the second groove 15 in the axial direction of the inserting platform 10 is 0.5 mm to 20 mm; and / or,

[0067] The depth of the second groove 15 in the radial direction of the insertion table 10 is 0.1 mm to 5 mm.

[0068] Such an arrangement can not only guide the steam-curing water, but also will not cause the strength of the quick-connect assembly to decrease.

[0069] In one embodiment of the present invention, there are six fins 22 , and the six fins 22 are arranged in a circular array on the extension portion 13 of the base 20 .

[0070] Such a configuration facilitates the elastic expansion and elastic contraction of the fins 22 , thereby extending the service life of the fins 22 .

[0071] It is understandable that the number of fins 22 may be other numbers, such as 2 to 8.

[0072] Please also read Figures 5 to 9 , Figure 5 is a cross-sectional view of a quick docking mechanism 200 in one embodiment of the present invention; Figure 6 It is a cross-sectional view of a first pile body 301, a steel bar 310, a first embedded element 210 and an inserting platform 10 in one embodiment of the present invention; Figure 7 It is a cross-sectional view of the second pile body 302, the steel bar 310, the second embedded element 220 and the base 20 in one embodiment of the present invention; Figure 8 for Figure 5 The schematic diagram of the quick docking mechanism 200 in use state is shown.

[0073] A quick docking mechanism 200 includes a first embedded element 210, a second embedded element 220 and the above-mentioned quick docking assembly 100; the fixed part of the insertion platform 10 is connected to the first embedded element 210, the base 20 is connected to the second embedded element 220, and one end of the steel bar 310 is connected to the first embedded element 210 or the second embedded element 220; the steel bar 310 connected to the first embedded element 210 and the steel bar 310 connected to the second embedded element 220 are connected through the quick docking assembly 100.

[0074] The quick docking mechanism 200 can quickly connect the first embedded element 210 and the second embedded element 220, saving construction time, and the first embedded element 210 and the second embedded element 220 after connection are highly firm, especially good in tensile strength.

[0075] In one embodiment of the present invention, the outer wall of the first embedded element 210 at one end close to the steel bar 310 is a non-circular polygon; and / or,

[0076] The outer wall of the second embedded element 220 which is relatively close to the end of the steel bar 310 is a non-circular polygon.

[0077] Such configuration facilitates installation and fixing of the first embedded element 210 and the second embedded element 220 .

[0078] In one embodiment of the present invention, the end of the first embedded element 210 or the second embedded element 220 connected to the steel bar 310 has a shrinkage opening, and the end of the steel bar 310 connected to the first embedded element 210 or the second embedded element 220 has a swage 311, and the shrinkage opening is used to limit the swage 311 of the steel bar 310; or,

[0079] With such arrangement, the connection between the first embedded element 210 or the second embedded element 220 and the steel bar 310 is simple, the construction time is short, and the connection is strong.

[0080] In one embodiment of the present invention, the first embedded element 210 or the second embedded element 220 is threadedly connected to the steel bar 310 .

[0081] In this way, the threads on the steel bar 310 can increase the adhesion between the steel bar 310 and the concrete 320, so that the steel bar 310 and the concrete 320 are tightly combined, and the two can cooperate with each other to jointly withstand external forces, thereby increasing the stress strength of the precast pile 300.

[0082] It is understandable that the first embedded element 210 and the inserting platform 10, and the second embedded element 220 and the base 20 may also be connected in other forms, such as welding, riveting, gluing, etc.

[0083] The use process of the quick docking mechanism 200 is as follows: in a factory or at a construction site, the first embedded element 210 is installed at the end of the steel bar 310 in the first pile body 301 through a shrinkage opening or a threaded connection, and the second embedded element 220 is installed at the end of the steel bar 310 in the second pile body 302 through a shrinkage opening or a threaded connection. At the construction site, the insert 10 is installed on the first embedded element 210, and the base 20 is installed on the second embedded element 220; the second pile body 302 is buried underground, and the second embedded element 220 is kept above the horizontal plane (generally, the height of the part of the second pile body 302 above the horizontal plane is about 1m), and a rubber layer (not shown) is applied on the surface of the second pile body 302, and the rubber layer is allowed to flow into the inner cavity of the second embedded element 220; the first pile body 301 is spliced ​​with the second pile body 302 by a crane or other means, and the axes of the first embedded element 210 and the second embedded element 220 are roughly aligned during splicing, and pressure is applied to the first embedded element 210 so that the insert 10 is inserted into the base 20 (at some construction sites, only the weight of the first prefabricated pile itself is required to complete the docking process of the quick docking assembly 100, without applying external force), and when the plug-in portion 12 of the insert 10 penetrates the base 20, a sound is emitted, which can be used to judge that the installation is complete. During the installation process, most of the rubber coating layer will be squeezed between the first embedded element 210 and the second embedded element 220, between the base 20 and the second embedded element 220, between the insert 10 and the second embedded element 220, and between the insert 10 and the base 20, and a small part of the rubber coating layer will be squeezed between the insert 10 and the first embedded element 210. It is understandable that since there are generally multiple steel bars 310 in the prefabricated pile 300, the quick docking mechanisms 200 on the multiple steel bars 310 need to be docked at the same time.

[0084] In one embodiment, the inserting platform 10 and the first embedded component 210 are connected by threads; and / or the base 20 and the second embedded component 220 are connected by threads.

[0085] It is understandable that in other embodiments, other connection methods may be used between the inserting platform 10 and the first embedded component 210 and between the base 20 and the second embedded component 220, such as snap connection, welding, riveting, etc.

[0086] In one embodiment, for the convenience of processing, a through thread may be directly provided on the first embedded element 210 or the second embedded element 220 , one end of which is used to connect to the steel bar 310 , and the other end of which is used to connect to the quick docking assembly 100 .

[0087] In one embodiment, an annular protrusion 211 is provided at one end of the first embedded element 210 and / or the second embedded element 220 connected to the quick connection assembly.

[0088] With such arrangement, the annular protrusion 211 can even out the prestress, so that the steel cage can withstand a greater prestress during pre-stretching, thereby preventing the first embedded element 210 or the second embedded element 220 from being damaged.

[0089] In one embodiment, the outer diameter of the annular protrusion 211 gradually decreases from the end of the first embedded element 210 and / or the second embedded element 220 to the middle.

[0090] With such arrangement, the annular protrusion 211 can further even out the prestress, and there is no sudden change in the angle of the outer wall (such as two mutually perpendicular surfaces), thereby preventing the loss of prestress.

[0091] It is understandable that in other embodiments, annular protrusions 211 of other shapes with lower processing costs may also be used, such as annular protrusions 211 with rectangular or trapezoidal cross-sections in the axial direction.

[0092] Preferably, the outer peripheral wall of the annular protrusion 211 is an arc surface. It is understandable that in other embodiments, the outer peripheral wall of the annular protrusion 211 may also be in other shapes such as an inclined surface.

[0093] Such an arrangement can further reduce stress loss and has an excellent effect of homogenizing prestress.

[0094] It should be noted that the first embedded component 210 and the second embedded component 220 can be of the same model or of different models, which can be selected according to working conditions.

[0095] Please also read Fig. 9 , Fig. 9 FIG. 4 is a cross-sectional view of a precast pile 300 according to an embodiment of the present invention.

[0096] The manufacturing process of the prefabricated pile 300 is to arrange the steel bars 310 according to the force requirements after forming to form a steel cage, pre-stretch the steel cage to generate prestress to offset or reduce the tensile stress generated by the external load, so that the steel bars 310 do not produce cracks or prolong the time of cracks in normal use; after the steel cage is formed, it is placed in a mold, and then concrete 320 is poured into the mold. If a hollow prefabricated pile 300 is required, the centrifugal mode is turned on, and if a solid pile is required, it is left to stand in the mold, and after forming, it is dried and demoulded to form a prefabricated pile 300. The pile making method is simple, the prefabricated pile 300 produced is strong, and the construction site is flexible and the cost is low.

[0097] The method for connecting the precast piles 300 is to place the steel bar 310 connected to the first embedded element 210 and the steel bar 310 connected to the second embedded element 220 opposite to each other when connecting two precast piles 300 , and use the quick docking assembly 100 to connect them.

[0098] Preferably, the steel bar 310 is a steel bar for prestressed concrete 320. The PC steel bar has the advantages of high strength and toughness, low relaxation, strong bond strength with the concrete 320, good weldability, upset forging, and material saving.

[0099] It is understandable that in other embodiments, other types of steel bars 310 may be used, such as stainless steel bars, hot-rolled steel bars, medium-strength prestressed steel wires, stress-relieved steel wires, steel strands, prestressed threaded steel bars, etc.

[0100] In one embodiment of the present invention, the steel bar 310, the first embedded element 210 and the second embedded element 220 are all embedded in the concrete 320 in advance to become embedded elements.

[0101] It is understandable that in other embodiments, the first embedded element 210 and the second embedded element 220 may be connected to the steel bar at a later stage. The operation steps are: first, the concrete at the end of the precast pile 300 is chiseled to expose the steel bar 310, and then the first embedded element 210 or the second embedded element 220 is connected to the end of the steel bar 310.

[0102] In one embodiment of the present invention, the prefabricated pile 300 is a hollow pipe pile.

[0103] It is understandable that in other embodiments, the prefabricated pile 300 may also be a hollow square pile, a solid pipe pile, a solid square pile, a solid pointed pile or other special-shaped piles.

[0104] In one embodiment, the steel cage needs to go through a tensioning step and a release step. The tensioning step refers to adding prestress to the steel cage in advance, so that the steel cage is subjected to compressive stress, thereby causing it to produce a certain deformation to increase the load that the steel cage can withstand, including the load of the component's own weight, wind load, snow load, earthquake load, etc.; since the prestress applied in the tensioning step is relatively large, in order to reduce the prestress loss of the steel cage, a release step is also required.

[0105] In one embodiment, after the first pile body 301 and the second pile body 302 are connected, a pile collar 330 is arranged on the peripheral wall of the prefabricated pile 300 after the connection. The pile collar 330 is used to tighten the connection between the first pile body 301 and the second pile body 302 to prevent the first pile body 301 and the second pile body 302 from being misaligned during service.

[0106] The quick docking mechanism 200 provided by the present invention only needs to connect the first embedded element 210 or the second embedded element 220 at one end of the steel bar 310, and the two steel bars 310 can be connected through the quick docking assembly 100, which is simple to connect and has high joint strength, especially excellent tensile performance.

[0107] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0108] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A quick docking assembly (100), characterized in that: The invention comprises an inserting platform (10) and a base (20), wherein the inserting platform (10) comprises a first fixing portion (11), an inserting portion (12), and an extending portion (13) located between the first fixing portion (11) and the inserting portion (12), wherein the inserting portion (12) is protrudingly arranged on the extending portion (13) and a step surface (14) is formed between the inserting portion (12) and the extending portion (13); the base (20) comprises a second fixing portion (21) and a plurality of fins (22) connected to the second fixing portion (21), wherein the plurality of fins (22) are arranged to surround each other; the inserting platform (10) can pass through an opening formed by the plurality of fins (22) through elastic expansion of the fins (22), wherein the fins (22) can elastically contract and surround the extending portion (13), and the end surfaces (221) of the fins (22) are arranged relative to the step surface (14) of the inserting platform (10); The inserting platform (10) is provided with a second groove (15), and the second groove (15) is used for allowing steam-cured water to flow out, so as to prevent the water from being retained in the quick docking assembly and accelerating corrosion of the inserting platform; The second groove (15) is annular; There are a plurality of the second grooves (15), and the plurality of the second grooves (15) are distributed on the inserting platform (10); The surface of the second groove (15) is coated with a hydrophobic layer; There are six fins (22), and the six fins (22) are arranged in a circular array on the extension portion (13) of the base (20); The height of the second groove (15) in the axial direction of the inserting platform (10) is 0.5 mm to 20 mm; and / or, The depth of the second groove (15) in the radial direction of the inserting platform (10) is 0.1 mm to 5 mm.

2. The quick docking assembly (100) according to claim 1, characterized in that: The cross section of the second groove (15) is triangular, rectangular, arc-shaped or trapezoidal.

3. A quick docking mechanism (200), characterized in that: The invention comprises a first embedded component (210), a second embedded component (220) and a quick docking assembly (100) as claimed in any one of claims 1 to 2; the first fixing portion (11) of the plug-in table (10) is connected to the first embedded component (210), and the second fixing portion (21) of the base (20) is connected to the second embedded component (220); the first embedded component (210) and the second embedded component (220) are connected via the quick docking assembly (100).

4. The quick docking mechanism (200) according to claim 3, characterized in that: The outer wall of the first embedded element (210) at one end closer to the steel bar (310) is a non-circular polygon; and / or, The outer wall of the second embedded element (220) at one end relatively close to the steel bar (310) is a non-circular polygon.

5. The quick docking mechanism (200) according to claim 3, characterized in that: The first embedded element (210) and the second embedded element (220) both have a contraction opening for connecting to the steel bar (310), one end of the steel bar (310) connected to the first embedded element (210) or the second embedded element (220) has a swage (311), and the contraction opening is used to limit the swage (311) of the steel bar (310); or, The first embedded element (210) and the second embedded element (220) both have internal threads for being threadedly connected to the steel bar (310).

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