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 protruding 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 opposite to the step surface of the plug-in; the end face of the plug-in away from the plug-in portion is provided with a clearance groove. The clearance groove of the plug-in in the quick docking assembly provided by the present invention can leave a margin space for the steel bar head assembled in the embedded element to avoid collision between the steel bar head and the plug-in.

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 connected, a quick docking assembly is generally used to connect the steel bars inside the two reinforced concrete precast piles. However, in actual applications, the quick docking assembly is prone to collision with the steel bars during use, which can seriously damage the parts in the quick docking assembly, causing the strength of the quick docking assembly to decrease or even fail. 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, including a socket and a base, the socket including a first fixing portion, a plug-in portion and an extension portion located between the first fixing portion and the plug-in portion, the plug-in portion protruding from the extension portion and forming a step surface between the plug-in portion and the extension portion; the base including a second fixing portion and a plurality of fins connected to the second fixing portion, the plurality of fins being arranged around each other; the socket can pass through an opening formed by the plurality of fins through the 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 socket; a clearance groove is provided on the end face of the socket away from the plug-in portion.

[0005] In the quick docking assembly provided by the present invention, the clearance groove on the end face of the plug-in table away from the plug-in part is used to make way for the steel bar head that extends into the embedded component and is arranged opposite to the end face of the plug-in table fixing part. The clearance groove of the plug-in table can leave a surplus space for the steel bar head assembled in the embedded component to avoid the steel bar head directly pressing against the end face of the plug-in table away from the plug-in part. In addition, the provision of the clearance groove makes it unnecessary to reduce the axial dimension of the first fixing part in the plug-in table, thereby ensuring that the plug-in table can be reliably connected to the first embedded component in the quick docking mechanism according to design requirements.

[0006] In addition, the quick docking assembly provided by the present invention is easy to install. After the plug-in portion of the plug-in table is inserted into the base, the fins will elastically contract and surround the extended portion of the base. The ends of the fins abut against the step surface of the plug-in table, and the abutting surface between the ends of the fins 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 component and the second embedded component, especially greatly improving the tensile performance; the fins can not only surround the extended portion of the plug-in table, but also limit the extended portion to prevent the extended portion 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.

[0007] In one embodiment of the present invention, the clearance groove is an arc-shaped groove.

[0008] Such a setting can better adapt to the end face shape of the steel bar head. When the end face of the steel bar is a protrusion with an uneven protrusion or a protrusion with low surroundings and a high center, the arc-shaped, square or spherical groove can provide sufficient space to accommodate the protruding part of the steel bar head, thereby preventing the steel bar head from contacting the insert.

[0009] In one embodiment of the present invention, the depth of the clearance groove along the axial direction of the inserting table is 0.1 mm to 10 mm.

[0010] Such an arrangement can ensure that the recess provides sufficient space to accommodate the end of the steel bar upsetting head, while preventing the insertion platform from having too much material removed from the end face of the insertion portion, resulting in reduced strength of the insertion platform fixing portion.

[0011] In one embodiment of the present invention, at least two positioning grooves are provided on the extension portion of the inserting platform, and the two positioning grooves are symmetrical with the axis of the inserting platform as the center.

[0012] With such arrangement, at least two positioning surfaces for clamping are formed on the outer side surface of the extension of the plug-in platform, and the positioning surfaces are symmetrical about the center of the plug-in platform. This makes it easy for operators to clamp the positioning surfaces with external clamping devices. The clamping force provided by the external clamping devices is perpendicular to the positioning surfaces and passes through the axis of the plug-in platform, preventing the external clamping devices from slipping and making full use of the clamping force, so as to quickly and easily disassemble or install the plug-in platform and the embedded components.

[0013] In one embodiment of the present invention, the depth of the positioning groove along the radial direction of the inserting platform is 0.05 mm to 5 mm.

[0014] Such an arrangement can enable the positioning surface of the positioning groove to obtain a larger area without removing much material from the extension portion of the socket, thereby ensuring the mechanical strength of the extension portion of the socket while enabling the external clamping device to firmly clamp the socket, thereby avoiding deformation or failure of the cross-section of the extension portion of the socket due to torsional stress when disassembling or installing the socket.

[0015] In one embodiment of the present invention, the ratio of the height of the first fixing portion in the axial direction of the inserting platform to the height of the inserting platform in the axial direction is (0.1-0.5):1.

[0016] The first fixing part is used to cooperate with the first embedded component and will be subjected to large radial and axial loads after installation. This arrangement can ensure that during the assembly of the plug-in platform and the first embedded component, the first fixing part has sufficient axial size to cooperate with the first embedded component, thereby preventing the plug-in platform from loosening due to the unreliable cooperation between the first fixing part and the first embedded component.

[0017] In one embodiment of the present invention, the ratio of the height of the plug-in portion in the axial direction of the plug-in platform to the height of the plug-in platform in the axial direction is (0.05-0.2):1.

[0018] Such an arrangement can ensure that when the plug-in portion is connected to the base, the plug-in portion has sufficient axial dimensions, thereby ensuring the mechanical strength of the plug-in portion and preventing the plug-in portion from being crushed by the end surface of the base fin due to insufficient strength, thereby causing the plug-in portion to fail.

[0019] In one embodiment of the present invention, the ratio of the height of the second fixing portion in the axial direction of the base to the height of the base in the axial direction is (0.1-0.5):1.

[0020] The second fixing portion is used for coupling and connection with the second embedded element, and will be subjected to larger radial and axial loads after installation. Such arrangement can ensure that when the base and the second embedded element are assembled, the second fixing portion has sufficient axial dimension to cooperate with the second embedded element, thereby preventing the second fixing portion from being loosened due to the tight coupling with the second embedded element.

[0021] In one embodiment of the present invention, the ratio of the height of the fin in the axial direction of the base to the height of the base in the axial direction is (0.2-0.9):1.

[0022] The fin's axial size will affect the fin's elastic deformation range and elastic contraction capacity. This arrangement can ensure that when the fin is penetrated by the insert and undergoes significant elastic deformation, the fin has sufficient radial offset to facilitate the insert to pass smoothly and avoid the insert from getting stuck in the cavity formed by the fin.

[0023] 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.

[0024] 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a quick docking assembly in one embodiment of the present invention;

[0026] Figure 2 for Figure 1 The structural schematic diagram of the plug-in station shown;

[0027] Figure 3 for Figure 1 A schematic diagram of the structure of the base shown;

[0028] Figure 4 for Figure 1 A schematic diagram of a portion of the structure of the base shown;

[0029] Figure 5 A cross-sectional view of a quick docking mechanism in one embodiment of the present invention;

[0030] 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;

[0031] 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;

[0032] Figure 8 for Figure 5 A schematic diagram of the use status of the quick docking mechanism shown;

[0033] Fig. 9 It is a cross-sectional view of a precast pile in one embodiment of the present invention.

[0034] 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, clearance groove; 16, positioning 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

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, not 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.

[0036] 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 A schematic structural diagram of the base 20 is shown; Figure 4 for Figure 1 A partial structural schematic diagram of the base 20 is shown.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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 .

[0043] 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.

[0044] 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.

[0045] 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.

[0046] In one embodiment, the external thread on the outer peripheral wall of the second fixing portion 21 extends to the outer peripheral wall of the fin 22 , so that the outer peripheral wall of the fin 22 also has an external thread that can be threadedly connected to the second embedded element 220 .

[0047] With such arrangement, the fin 22 itself is also connected to the second fixing portion 21 , and is more stable when the fin 22 elastically contracts or elastically expands, and the fin 22 is not prone to shaking.

[0048] In this embodiment, the inserting platform 10 and the base 20 are both made of black metal. Preferably, the inserting platform 10 and the base 20 are made of carbon steel or alloy steel. Specifically, the inserting platform 10 and the base 20 are made of carbon steel, chrome steel, chrome vanadium steel, chrome nickel steel, chrome molybdenum steel, chrome nickel molybdenum steel, chrome manganese silicon steel, ultra-high strength steel or stainless steel. It is understood that in other embodiments, it can also be made of other materials.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] However, in actual applications, the quick-connect assembly is prone to collision with the steel bars during use, which may seriously damage the parts in the quick-connect assembly, causing the strength of the quick-connect assembly to decrease or even fail.

[0053] In one embodiment of the present invention, a clearance groove 15 is formed on the end surface 221 of the inserting platform 10 away from the inserting portion 12 .

[0054] In the quick docking assembly 100 provided by the present invention, the clearance groove 15 of the end face 221 of the plug-in table 10 away from the plug-in portion 12 is used to make way for the head 311 of the steel bar 310 that extends into the embedded component and is arranged opposite to the end face 221 of the fixed portion of the plug-in table 10. The clearance groove 15 of the plug-in table 10 can leave a surplus space for the head 311 of the steel bar 310 assembled in the embedded component, thereby preventing the head 311 of the steel bar 310 from directly pressing against the end face 221 of the plug-in table 10 away from the plug-in portion 12. In addition, the provision of the clearance groove 15 makes it unnecessary to reduce the axial dimension of the first fixed portion 11 in the plug-in table 10, thereby ensuring that the plug-in table 10 can be reliably connected to the first embedded component 210 in the quick docking mechanism 200 according to design requirements.

[0055] In one embodiment of the present invention, the clearance groove 15 is an arc-shaped groove.

[0056] Such a configuration can better adapt to the shape of the end face 221 of the swage 311 of the steel bar 310. When the end face 221 of the steel bar 310 is a protrusion with an uneven protrusion or a protrusion with low surroundings and a high center, the arc-shaped, square or spherical groove can provide sufficient space to accommodate the protruding part of the swage 311 of the steel bar 310, thereby preventing the swage 311 of the steel bar 310 from contacting the insertion table 10.

[0057] It is understandable that the clearance groove 15 can also be in other shapes such as cylindrical, square, truncated cone, etc., as long as it can have the clearance function.

[0058] In one embodiment of the present invention, the depth of the clearance groove 15 along the axial direction of the inserting platform 10 is 0.1 mm to 10 mm.

[0059] Such a configuration can ensure that the recess 15 provides enough space to accommodate the end of the head 311 of the steel bar 310, while preventing too much material from being removed from the end surface 221 of the insert 10 away from the plug-in portion 12, resulting in reduced strength of the fixing portion of the insert 10.

[0060] In one embodiment of the present invention, at least two positioning grooves 16 are disposed on the extension portion 13 of the inserting platform 10 , and the two positioning grooves 16 are symmetrical with the axis of the inserting platform 10 as the center.

[0061] With such arrangement, at least two positioning surfaces for clamping are formed on the outer side surface of the extension portion 13 of the inserting platform 10, and the positioning surfaces are symmetrical about the center of the inserting platform 10. This facilitates the operator to clamp the positioning surfaces with an external clamping device, and the clamping force provided by the external clamping device is perpendicular to the positioning surface and passes through the axis of the inserting platform 10, preventing the external clamping device from slipping and making full use of the clamping force, so as to quickly and easily disassemble or install the inserting platform 10 and the embedded components.

[0062] In one embodiment of the present invention, the depth of the positioning groove 16 along the radial direction of the insertion platform 10 is 0.05 mm to 5 mm.

[0063] Such an arrangement enables the positioning surface of the positioning groove 16 to obtain a larger area without removing much material of the extension portion 13 of the socket 10, thereby ensuring the mechanical strength of the extension portion 13 of the socket 10 while ensuring that the external clamping device firmly clamps the socket 10, thereby avoiding deformation or failure of the cross-section of the extension portion 13 of the socket 10 due to torsional stress when the socket 10 is disassembled or installed.

[0064] It is understandable that the positioning groove 16 can be formed at one time with the insert table 10 during processing, or can be subsequently processed on the insert table 10 for a second time, by cutting the extension portion 13 of the insert table 10 to form the positioning groove 16, which is simple to process and low in cost.

[0065] In one embodiment of the present invention, the ratio of the height of the first fixing portion 11 in the axial direction of the inserting platform 10 to the height of the inserting platform 10 in the axial direction is (0.1-0.5):1.

[0066] The first fixing portion 11 is used to cooperate with the first embedded component 210, and will be subjected to large radial and axial loads after installation. This arrangement can ensure that during the assembly of the plug-in platform 10 and the first embedded component 210, the first fixing portion 11 has sufficient axial size to cooperate with the first embedded component 210, preventing the first fixing portion 11 from being loosened due to the unreliable cooperation with the first embedded component 210.

[0067] In one embodiment of the present invention, the ratio of the height of the plug-in portion 12 in the axial direction of the plug-in platform 10 to the height of the plug-in platform 10 in the axial direction is (0.05-0.2):1.

[0068] Such an arrangement can ensure that when the docking station 10 and the base 20 are docked, the plug-in portion 12 has a sufficient axial dimension, thereby ensuring the mechanical strength of the plug-in portion 12 and preventing the plug-in portion 12 from being crushed by the end surface 221 of the fin 22 of the base 20 due to insufficient strength, thereby causing the docking station 10 to fail.

[0069] In one embodiment of the present invention, the ratio of the height of the second fixing portion 21 in the axial direction of the base 20 to the height of the base 20 in the axial direction is (0.1-0.5):1.

[0070] The second fixing portion 21 is used for connection with the second embedded element 220, and will be subjected to large radial and axial loads after installation. Such arrangement can ensure that when the base 20 and the second embedded element 220 are assembled, the second fixing portion 21 has sufficient axial size to cooperate with the second embedded element 220, thereby preventing the base 20 from loosening due to the firm cooperation between the second fixing portion 21 and the second embedded element 220.

[0071] In one embodiment of the present invention, the ratio of the height of the fin 22 in the axial direction of the base 20 to the height of the base 20 in the axial direction is (0.2-0.9):1.

[0072] The axial dimension of the fin 22 on the base 20 will affect the elastic deformation range and elastic contraction capacity of the fin 22. Such a configuration can ensure that when the fin 22 is penetrated by the insert 10 and undergoes significant elastic deformation, the fin 22 can have sufficient radial offset to facilitate the insert 10 to pass smoothly and avoid the insert 10 from getting stuck in the cavity formed by the fin 22.

[0073] 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 FIG. 2 is a schematic diagram of the quick docking mechanism 200 in use state.

[0074] 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.

[0075] 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.

[0076] 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,

[0077] 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.

[0078] Such configuration facilitates installation and fixing of the first embedded element 210 and the second embedded element 220 .

[0079] 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.

[0080] 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.

[0081] 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 .

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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 .

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] Such an arrangement can further reduce stress loss and has an excellent effect of homogenizing prestress.

[0095] 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.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] In one embodiment of the present invention, the steel bar 310, the first embedded element 210 and the second embedded element 220 are all pre-embedded in the concrete 320 to become embedded elements.

[0102] 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.

[0103] In one embodiment of the present invention, the prefabricated pile 300 is a hollow pipe pile.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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 end surface (221) of the inserting platform (10) away from the inserting portion (12) is provided with a clearance groove (15); The said giving way groove (15) is an arc-shaped groove; The depth of the clearance groove (15) along the axial direction of the inserting platform (10) is 0.1 mm to 10 mm; At least two positioning grooves (16) are provided on the extension portion (13) of the inserting platform (10), and the two positioning grooves (16) are symmetrical with the axis of the inserting platform (10) as the center; The depth of the positioning groove (16) along the radial direction of the inserting platform (10) is 0.05 mm to 5 mm; The ratio of the height of the first fixing portion (11) in the axial direction of the inserting platform (10) to the height of the inserting platform (10) in the axial direction is (0.1-0.5):1; The ratio of the height of the plug-in portion (12) in the axial direction of the plug-in platform (10) to the height of the plug-in platform (10) in the axial direction is (0.05-0.2):

1.

2. The quick docking assembly (100) according to claim 1, characterized in that: The ratio of the height of the second fixing portion (21) in the axial direction of the base (20) to the height of the base (20) in the axial direction is (0.1-0.7):

1.

3. The quick docking assembly (100) according to claim 1, characterized in that: The ratio of the height of the fin (22) in the axial direction of the base (20) to the height of the base (20) in the axial direction is (0.2-0.9):

1.

4. 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 3; 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).

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