CN211690310U - Quick butt joint subassembly and quick butt joint mechanism - Google Patents

Abstract

The utility model provides a quick butt joint component and a quick butt joint mechanism, a quick butt joint component inserting table and a base, wherein the inserting table comprises a first fixed part, an inserting part and an extending part positioned between the first fixed part and the inserting part, the inserting part is convexly arranged on the extending part, and a step surface is formed between the inserting part and the extending part; the base comprises a second fixing part and a plurality of fins connected to the second fixing part, and the fins are arranged in a surrounding manner; the inserting table can penetrate through the openings formed by enclosing of the plurality of fins through elastic expansion of the fins, the fins can elastically contract and enclose the extending parts, and the end surfaces of the fins and the step surfaces of the inserting table are oppositely arranged; the end face of the inserting platform far away from the inserting part is provided with a yielding groove. The utility model provides an insert recess of stepping down of platform in the quick butt joint subassembly can leave the surplus space for the upset head of reinforcing bar of assembling in pre-buried component, avoids upset head of reinforcing bar and inserts the collision between the platform.

Description

Quick butt joint subassembly and quick butt joint mechanism

Technical Field

The utility model relates to a building technical field especially relates to a quick butt joint subassembly and quick docking mechanism.

Background

In the technical field of buildings, in order to facilitate production and processing and reduce construction time, the length of a precast pile is ensured by adopting a mode of splicing reinforced concrete precast piles. In order to quickly and firmly join two prefabricated reinforced concrete piles, a quick butt joint assembly is generally used for connecting reinforcing steel bars inside the two prefabricated reinforced concrete piles. However, in practical applications, the quick butt joint component is likely to collide with the steel bars during use, and in severe cases, parts in the quick butt joint component are damaged, so that the strength of the quick butt joint component is reduced and even the quick butt joint component fails.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for an improved quick docking assembly and a quick docking mechanism.

The utility model provides a quick butt joint assembly, which comprises an inserting table and a base, wherein the inserting table comprises a first fixed part, an inserting part and an extending part positioned between the first fixed part and the inserting part, the inserting part is convexly arranged on the extending part, and a step surface is formed between the inserting part and the extending part; the base comprises a second fixing part and a plurality of fins connected to the second fixing part, and the fins are arranged in a surrounding manner; the inserting table can penetrate through openings formed by enclosing of the fins through elastic expansion of the fins, the fins can elastically contract and enclose the extending parts, and the end faces of the fins and the step faces of the inserting table are oppositely arranged; the end face of the inserting platform far away from the inserting part is provided with a yielding groove.

The utility model provides an among the quick butt joint subassembly, the recess of stepping down of the terminal surface of inserting the platform and keeping away from grafting portion is used for stepping down and stretches into pre-buried component and with the relative reinforcing bar upset head that sets up of inserting a fixed part terminal surface, the recess of stepping down of inserting the platform can leave the surplus space for the reinforcing bar upset head of assembling in pre-buried component, avoid the reinforcing bar upset head directly to support and press the terminal surface of inserting the platform and keeping away from grafting portion, the setting of the recess of stepping down makes and need not to reduce the axial dimensions who inserts first fixed part in the platform in addition, thereby guarantee to insert the platform and can reliably be connected with the first pre-buried component in the quick docking mechanism according to the.

Moreover, the utility model provides a quick butt joint subassembly installation is simple, inserts the grafting portion of inserting the platform into the base after, and the fin can elastic shrinkage and enclose the extension of base, and the tip butt of fin is in the step face of inserting the platform to the butt face between the tip of fin and the step face of inserting the platform is similar to the annular, and the butt area is big, can guarantee the joint strength between first pre-buried component and the second pre-buried component, especially has great promotion to tensile strength; the fin not only can enclose the extension of inserting the platform, can also play spacing effect to the extension, prevents that the extension from rocking in radial direction. Furthermore, the utility model provides a quick butt joint subassembly processing simple process, low cost is suitable for the scene extensively.

The utility model discloses an in the embodiment, the recess of stepping down is the arc recess.

So set up, the terminal surface shape that can better adapt to the upset head of reinforcing bar, when the reinforcing bar terminal surface is protruding or the low high outstanding form in center all around for having the unevenness, arc, square or sphere recess can provide sufficient space of stepping down, and the recess can hold the outstanding part of upset head of reinforcing bar to avoid upset head of reinforcing bar and the contact of inserting the platform.

The utility model discloses an among the embodiment, the recess of stepping down is 0.1mm to 10mm along inserting platform axial direction's degree of depth.

So set up, can guarantee to let the recess provide the sufficient space that holds the upset head tip, prevent simultaneously to insert the platform and keep away from grafting portion terminal surface and get rid of too much material, lead to inserting a platform fixed part intensity and reduce.

In an embodiment of the present invention, at least two positioning grooves are disposed on the extension portion of the insertion platform, and the two positioning grooves are centered on the axis of the insertion platform.

So set up, formed at least two locating surfaces that can be used to the centre gripping at the extension lateral surface of inserting the platform, the locating surface is symmetrical about inserting the platform central authorities. This be convenient for operating personnel uses outside clamping apparatus to press from both sides tight locating surface, and the clamp force direction that outside clamping apparatus provided all is perpendicular to locating surface and through inserting a platform axle center, prevents outside clamping apparatus slippage to make full use of clamp force, thereby dismantle fast lightly or the installation inserts platform and pre-buried component.

In an embodiment of the present invention, the depth of the positioning groove along the radial direction of the insertion stage is 0.05mm to 5 mm.

So set up, can make the locating surface of constant head tank obtain great area, and can not get rid of more material of inserting a platform extension, guaranteed the mechanical strength who inserts a platform extension when realizing the firm centre gripping of outside clamp apparatus and inserting the platform, when avoiding dismantling or installing the platform, receive torsional stress and produce deformation or inefficacy because of inserting a platform extension cross-section.

In an embodiment of the present invention, the ratio of the height of the first fixing portion in the axial direction of the inserting table to the height of the inserting table in the axial direction is (0.1-0.5): 1.

the first fixed part is used for being connected with the first embedded element in a matched mode, and can bear large radial and axial loads after installation. So set up, can guarantee to insert platform and first pre-buried component in-process at the assembly, first fixed part has sufficient axial dimensions and first pre-buried component cooperation, prevents that first fixed part and first pre-buried component cooperation are not firm to lead to inserting the platform pine to take off.

The utility model discloses an in the embodiment, the ratio of grafting portion in the height of inserting platform axial direction and inserting platform in axial direction height is (0.05 ~ 0.2): 1.

so set up, can guarantee when butt joint platform and base are inserted, grafting portion has sufficient axial dimensions, and then has guaranteed the mechanical strength of grafting portion, prevents that grafting portion from being squashed and then leading to inserting the platform inefficacy by the terminal surface of base fin because of intensity is not enough.

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

the second fixed part is used for being connected with the cooperation of the pre-buried component of second, can receive great radial and axial load after the installation, so set up, can guarantee when assembly base and the pre-buried component of second, the second fixed part has sufficient axial dimensions and the cooperation of the pre-buried component of second, prevents that the second fixed part from taking off with the firm base pine that leads to of the pre-buried component cooperation portion of second.

In an 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.

the dimension of the fins in the axial direction of the base will affect the elastic deformation range and the elastic shrinkage capability of the fins. So set up, can construct and guarantee that when the fin was inserted the platform and wears to establish and take place to show elastic deformation, the fin can have sufficient radial offset, is convenient for insert the platform and passes through smoothly, avoids inserting the platform jamming in the cavity that the fin formed.

A quick butt joint mechanism comprises a first embedded element, a second embedded element and the quick butt joint assembly; the fixing part of the inserting table is connected to the first embedded element, the base is connected to the second embedded element, and one end of a steel bar is connected to the first embedded element or the second embedded element; the reinforcing steel bars connected with the first embedded elements are connected with the reinforcing steel bars connected with the second embedded elements through the quick butt joint assembly.

The quick butt joint mechanism can quickly connect the first embedded element and the second embedded element, construction time is saved, the firmness of the connected first embedded element and the second embedded element is high, and particularly the tensile property is good.

Drawings

Fig. 1 is a schematic structural diagram of a quick docking assembly according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the docking station shown in FIG. 1;

FIG. 3 is a schematic structural view of the base shown in FIG. 1;

FIG. 4 is a schematic view of a portion of the base shown in FIG. 1;

fig. 5 is a cross-sectional view of a quick docking mechanism according to an embodiment of the present invention;

fig. 6 is a cross-sectional view of the first pile, the reinforcing bars, the first embedded elements and the platform according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a second pile, a reinforcement bar, a second embedded element, and a base according to an embodiment of the present invention;

FIG. 8 is a schematic view of the quick docking mechanism shown in FIG. 5 in use;

fig. 9 is a cross-sectional view of a precast pile according to an embodiment of the present invention.

100. A quick docking assembly; 10. inserting a platform; 20. a base; 11. a first fixed part; 12. a plug-in part; 13. an extension portion; 14. a step surface; 15. a yielding groove; 16. positioning a groove; 21. a second fixed part; 22. a fin; 221. an end face; 200. a quick docking mechanism; 210. a first pre-buried element; 211. an annular projection; 220. a second pre-embedded element; 300. prefabricating a pile; 301. a first pile body; 302. a second pile body; 310. reinforcing steel bars; 311. heading; 320. concrete; 330. and (6) sleeving the pile.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a quick docking assembly 100 according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of the docking station 10 shown in FIG. 1; FIG. 3 is a schematic structural view of the base 20 shown in FIG. 1; fig. 4 is a partial structural view of the base 20 shown in fig. 1.

The utility model provides a quick butt joint subassembly 100, it is used for connecting two engineering parts. In this embodiment, the quick docking assembly 100 is used to connect the reinforcing bars 310 in the precast pile 300. It is understood that in other embodiments, the quick docking assembly 100 may also be used in other engineering fields, such as fabricated buildings, etc., and may also be used to connect reinforcing bars in other applications, such as pouring concrete, etc.

The utility model provides a fast docking assembly 100, which comprises a docking platform 10 and a base 20, wherein the docking platform 10 comprises a first fixing part 11, a docking part 12 and an extending part 13 positioned between the first fixing part 11 and the docking part 12, the docking part 12 is convexly arranged on the extending part 13, and a step surface 14 is formed between the docking part 12 and the extending part 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 disposed to surround each other; the insert table 10 can pass through the openings defined by the plurality of fins 22 by elastic expansion of the fins 22, the fins 22 can elastically contract and close the extension 13, and the end surfaces 221 of the fins 22 and the step surface 14 of the insert table 10 are disposed to face each other.

The socket 10 is a cylindrical component, the first fixing portion 11 is used for fixing with an external component, and the inserting portion 12 is used for inserting into the buckle. To facilitate plugging, the platform 10 is preferably generally cylindrical; in other embodiments, the platform 10 may have other shapes such as a square column and a tapered column. In order to increase the bearing capacity of the quick docking assembly 100, the platform 10 is made of a solid material. It is understood that in other embodiments, the platform 10 may be made of hollow material according to different bearing requirements.

The first fixing portion 11 is used for connecting 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, which are fixedly connected by a thread. It is understood that in other embodiments, the first fixing portion 11 and the first embedded element 210 may be connected by other methods, such as welding, clamping, riveting, and the like.

The insertion part 12 can penetrate and abut against the end surface 221 of the base 20, the insertion part 12 can enable the base 20 to be elastically expanded when penetrating through the base 20, and after the insertion part 12 penetrates through the base 20, the base 20 elastically contracts and encloses the extension part 13, so that the insertion table 10 can be limited from moving radially.

The extending portion 13 is used for connecting the first fixing portion 11 and the inserting portion 12, and after the inserting portion 12 is inserted into the base 20, the extending portion 13 is enclosed and fixed by the base 20.

The base 20 is substantially hollow and cylindrical, and is fitted to the cradle 10. Preferably, the base 20 is substantially hollow cylindrical. It is understood that in other embodiments, the base 20 may be configured with the socket 10 in other shapes such as a square cylinder, a cone cylinder, etc.

The second fixing portion 21 is used for being connected with the second embedded element 220, in this embodiment, an outer circumferential wall of the second fixing portion 21 is provided with an external thread, an inner circumferential wall of the second embedded element 220 is provided with an internal thread, and the two are fixedly connected through the thread. It is understood that in other embodiments, the second fixing portion 21 and the second embedded element 220 may be connected by other methods such as welding, clamping, riveting, and the like.

The plurality of fins 22 are enclosed and form a hollow column shape, and a certain gap is formed between every two adjacent fins 22 for elastic expansion and elastic contraction of the fins 22; the fins 22 can be penetrated by the inserting part 12 through elastic expansion, and after the inserting part 12 penetrates through the fins 22, the fins 22 elastically contract and enclose the extension part 13 of the inserting table 10. Preferably, the plurality of fins 22 are circumferentially and uniformly arranged around the axis of the base 20 in order to balance the force applied to the plurality of fins 22.

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 capable of being screwed with the second embedded element 220.

With such an arrangement, the fin 22 itself is also connected to the second fixing portion 21, so that the fin 22 is more stable when elastically contracted or elastically expanded, and the fin 22 is less likely to shake.

In the present embodiment, the socket 10 and the base 20 are made of ferrous metal. Preferably, the socket 10 and the base 20 are made of carbon steel or alloy steel. Specifically, the platform 10 and the base 20 are made of carbon steel, chromium vanadium steel, chromium nickel steel, chromium molybdenum steel, chromium nickel molybdenum steel, chromium manganese silicon steel, ultra-high strength steel, or stainless steel. It is understood that other materials may be used in other embodiments.

The use process of the quick docking assembly 100 is as follows: extending the inserting part 12 and the extending part 13 of the inserting table 10 into the inner wall of the base 20 and moving along the inserting direction alpha, wherein the inserting part 12 of the inserting table 10 applies pressure on the fin 22, so that the fin 22 is elastically expanded until the inserting part 12 passes through the fin 22; when the fin 22 elastically contracts and closes the extension 13 at the moment when the socket 12 passes through the fin 22, and a force in the opposite direction of the insertion direction α is applied to the socket 10, the end of the fin 22 abuts against the step surface 14 between the socket 12 and the extension 13 to limit the socket 10.

The insertion direction α in the present invention is a direction in which the fixing portion is directed to the mating portion 12, i.e., a direction of an arrow shown in the figure. It is understood that the insertion direction α can be, but is not limited to, the above-mentioned directions, and even partial angular offsets should be included in the scope of the present invention.

The utility model provides a quick butt joint subassembly 100 installs simply, inserts the grafting portion 12 of inserting platform 10 back in base 20, and fin 22 can elastic shrinkage and enclose extension 13 of base 20, and the tip butt of fin 22 is in the step face 14 of inserting platform 10 to the butt face between the tip of fin 22 and the step face 14 of inserting platform 10 is similar to the annular, and the butt area is big, can guarantee the joint strength between first pre-buried component 210 and the second pre-buried component 220, especially has great promotion to tensile strength; the fins 22 not only can enclose the extension 13 of the insertion stage 10, but also can limit the extension 13 to prevent the extension 13 from shaking in the radial direction. Furthermore, the utility model provides a quick butt joint subassembly 100 processing technology is simple, low cost, and it is extensive to be suitable for the scene.

However, in practical applications, the quick butt joint component is likely to collide with the steel bars during use, and in severe cases, parts in the quick butt joint component are damaged, so that the strength of the quick butt joint component is reduced and even the quick butt joint component fails.

In an embodiment of the present invention, the end surface 221 of the socket 10 away from the inserting portion 12 is provided with a receding groove 15.

The utility model provides an among the quick butt joint subassembly 100, the recess 15 of stepping down of the terminal surface 221 of inserting the platform 10 and keeping away from grafting portion 12 is used for stepping down and stretches into embedded component and with insert the reinforcing bar 310 upset 311 that 10 fixed part terminal surfaces 221 set up relatively, the recess 15 of stepping down of inserting the platform 10 can leave the surplus space for the reinforcing bar 310 upset 311 of assembling in embedded component, avoid reinforcing bar 310 upset 311 directly to support and press the terminal surface 221 of inserting the platform 10 and keeping away from grafting portion 12, in addition the setting of the recess 15 of stepping down makes and need not to reduce the axial dimensions who inserts first fixed part 11 in the platform 10, thereby guarantee to insert the platform 10 and can reliably be connected with the first embedded component 210 in quick docking mechanism 200 according to the design requirement.

In an embodiment of the present invention, the recess 15 is an arc-shaped recess.

So set up, can better adapt to the terminal surface 221 shape of reinforcing bar 310 upset 311, when reinforcing bar 310 terminal surface 221 is for having unevenness protruding or the low high outstanding form in center all around, arc, square or sphere recess can provide sufficient space of stepping down, and the recess can hold the outstanding part of reinforcing bar 310 upset 311 to avoid reinforcing bar 310 upset 311 and the contact of inserting platform 10.

It is understood that the abdicating groove 15 can also be other shapes such as a cylinder, a square, a truncated cone, etc., as long as it can have the abdicating function.

The utility model discloses an in the embodiment, the degree of depth of recess 15 along inserting platform 10 axial direction is 0.1mm to 10mm of stepping down.

By such an arrangement, the receding groove 15 can be ensured to provide enough space for accommodating the end part of the upset 311 of the steel bar 310, and meanwhile, the insertion platform 10 is prevented from being removed with too much material away from the end surface 221 of the insertion part 12, so that the strength of the fixing part of the insertion platform 10 is reduced.

In an embodiment of the present invention, at least two positioning grooves 16 are disposed on the extension portion 13 of the insertion stage 10, and the two positioning grooves 16 are symmetrical with respect to the axis of the insertion stage 10.

With this arrangement, at least two positioning surfaces for clamping are formed on the outer side surface of the extension part 13 of the insert table 10, and the positioning surfaces are symmetrical with respect to the center of the insert table 10. This is convenient for operating personnel to use outside clamping apparatus to press from both sides tight locating surface, and the clamp force direction that outside clamping apparatus provided all is perpendicular to the locating surface and through inserting platform 10 axle center, prevents that outside clamping apparatus from slipping to make full use of clamp force, thereby dismantle or install fast lightly and insert platform 10 and pre-buried component.

In one embodiment of the present invention, the depth of the positioning groove 16 in the radial direction of the platform 10 is 0.05mm to 5 mm.

By the arrangement, the positioning surface of the positioning groove 16 can obtain a larger area, more materials of the extension part 13 of the inserting table 10 cannot be removed, the mechanical strength of the extension part 13 of the inserting table 10 is guaranteed while the inserting table 10 is clamped firmly by external clamping equipment, and deformation or failure caused by torsional stress on the section of the extension part 13 of the inserting table 10 when the inserting table 10 is detached or installed is avoided.

It can be understood that the positioning groove 16 can be formed with the socket 10 at one time during the machining process, or can be machined on the socket 10 at a later time to cut the extending portion 13 of the socket 10 to form the positioning groove 16, so that the machining process is simple and low in cost.

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

the first fixing portion 11 is used for being connected with the first embedded element 210 in a matching manner, and can bear larger radial and axial loads after being installed. So set up, can guarantee to insert platform 10 and first pre-buried component 210 in-process at the assembly, first fixed part 11 has sufficient axial dimensions and cooperates with first pre-buried component 210, prevents that first fixed part 11 and first pre-buried component 210 cooperation is insecure to lead to inserting platform 10 pine to take off.

In an embodiment of the present invention, the ratio of the height of the insertion part 12 in the axial direction of the insertion stage 10 to the height of the insertion stage 10 in the axial direction is (0.05-0.2): 1.

with the arrangement, when the inserting table 10 is abutted to the base 20, the inserting part 12 has a sufficient axial size, so that the mechanical strength of the inserting part 12 is ensured, and the inserting part 12 is prevented from being crushed by the end surface 221 of the fin 22 of the base 20 due to insufficient strength to further cause the failure of the inserting table 10.

In an 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.

second fixed part 21 is used for being connected with the cooperation of second embedded component 220, can receive great radial and axial load after the installation, so set up, can guarantee when assembly base 20 and second embedded component 220, second fixed part 21 has sufficient axial dimensions and the cooperation of second embedded component 220, prevents that second fixed part 21 and second embedded component 220 cooperation portion are firm to result in the base 20 pine to take off.

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.

the dimension of the fins 22 in the axial direction of the base 20 will affect the elastic deformation range and the elastic contractibility of the fins 22. So set up, can construct and guarantee that when fin 22 is worn to establish by inserting platform 10 and takes place to show elastic deformation, fin 22 can have sufficient radial offset, is convenient for insert platform 10 and passes through smoothly, avoids inserting platform 10 jamming in the cavity that fin 22 formed.

Referring to fig. 5 to 9, fig. 5 is a cross-sectional view of a quick docking mechanism 200 according to an embodiment of the present invention; fig. 6 is a cross-sectional view of the first pile 301, the reinforcing bar 310, the first pre-embedded element 210 and the platform 10 according to an embodiment of the present invention; fig. 7 is a cross-sectional view of the second pile 302, the reinforcement bar 310, the second embedded element 220 and the base 20 according to an embodiment of the present invention; fig. 8 is a schematic view of the quick docking mechanism 200 shown in fig. 5 in a use state.

A fast docking mechanism 200 comprises a first pre-embedded element 210, a second pre-embedded element 220 and the fast docking assembly 100; the fixing part of the inserting table 10 is connected to the first pre-buried element 210, the base 20 is connected to the second pre-buried element 220, and one end of the steel bar 310 is connected to the first pre-buried element 210 or the second pre-buried element 220; the reinforcing steel bars 310 connected with the first embedded elements 210 and the reinforcing steel bars 310 connected with the second embedded elements 220 are connected through the quick butt joint assembly 100.

The quick butt joint mechanism 200 can quickly connect the first embedded element 210 and the second embedded element 220, so that the construction time is saved, and the connected first embedded element 210 and the connected second embedded element 220 are high in firmness and particularly good in tensile property.

In one embodiment of the present invention, the outer wall of the first pre-embedded element 210 relatively close to one end of the steel bar 310 is a non-circular polygon; and/or the presence of a catalyst in the reaction mixture,

the outer wall of the second embedded element 220 close to one end of the steel bar 310 is a non-circular polygon.

Thus, the first embedded element 210 and the second embedded element 220 are convenient to install and fix.

In an embodiment of the present invention, the one end of the first embedded element 210 or the second embedded element 220 connected to the steel bar 310 has a contraction opening, the one end of the steel bar 310 connected to the first embedded element 210 or the second embedded element 220 has an upset 311, and the contraction opening is used for limiting the upset 311 of the steel bar 310.

So set up, it is simple and convenient to be connected between first pre-buried component 210 or second pre-buried component 220 and the reinforcing bar 310, and the engineering time is short, and the fastness of connection is high.

In one embodiment of the present invention, the first embedded element 210 or the second embedded element 220 is screwed with the steel bar 310.

So set up, be provided with the screw thread on the reinforcing bar 310 and can increase the adhesive force between reinforcing bar 310 and the concrete 320 for combine closely between reinforcing bar 310 and the concrete 320, the two can coordinate the cooperation, bear external force jointly, increase precast pile 300's stress strength.

It is understood that other connection forms, such as welding, riveting, gluing, etc., may also be used between the first embedded element 210 and the platform 10 and between the second embedded element 220 and the base 20.

The use process of the quick docking mechanism 200 is as follows: the first embedded element 210 is installed at the end of the steel bar 310 in the first pile body 301 through a shrink-fit or threaded connection in a factory or a construction site, and the second embedded element 220 is installed at the end of the steel bar 310 in the second pile body 302 through a shrink-fit or threaded connection. Installing the inserting table 10 on the first embedded element 210 and the base 20 on the second embedded element 220 in a construction site; burying the second pile 302 underground, keeping the second pre-buried element 220 above the horizontal plane (generally, the height of the part of the second pile 302 above the horizontal plane is about 1 m), coating a glue coating (not shown) on the surface of the second pile 302, and making the glue coating flow into the inner cavity of the second pre-buried element 220; the first pile body 301 is spliced with the second pile body 302 through a crane or other modes, during splicing, the axes of the first embedded element 210 and the second embedded element 220 are approximately aligned, pressure is applied to the first embedded element 210, so that the inserting platform 10 is inserted into the base 20 (the butt joint process of the quick butt joint assembly 100 can be completed only by the weight of the first precast pile per se on part of construction sites, external force does not need to be applied), and when the inserting part 12 of the inserting platform 10 penetrates through the base 20, sound is generated, and the installation completion can be judged. Most of the glue coating layers are extruded between the first embedded element 210 and the second embedded element 220, between the base 20 and the second embedded element 220, between the inserting table 10 and the second embedded element 220, and between the inserting table 10 and the base 20 in the installation process, and a small part of the glue coating layers are extruded between the inserting table 10 and the first embedded element 210. It will be appreciated that, because there are typically multiple rebars 310 in the precast pile 300, it is necessary to simultaneously dock the quick docking mechanisms 200 on multiple rebars 310.

In one embodiment, the inserting table 10 is connected with the first embedded element 210 by a thread; and/or, the base 20 is connected with the second embedded element 220 by a screw thread.

It is understood that in other embodiments, other connection methods, such as snap connection, welding, riveting, etc., may be adopted between the socket 10 and the first fastener element 210, and between the base 20 and the second fastener element 220.

In one embodiment, for convenience of processing, the first embedded element 210 or the second embedded element 220 may be directly provided with through threads, one end of which is used for connecting the reinforcing bars 310, and the other end of which is used for connecting the quick docking assembly 100.

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

So set up, annular lug 211 can homogenize prestressing force for the prestressing force that the steel reinforcement cage can bear when prestretching is carried out is bigger, prevents that first embedded component 210 or second embedded component 220 from damaging.

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

With such an arrangement, the annular bump 211 can further homogenize the prestress, and the phenomenon of abrupt change of the angle of the outer wall surface (such as two mutually perpendicular surfaces) does not exist, so that the prestress loss can be prevented.

It is understood that in other embodiments, the annular protrusion 211 with other shapes, such as rectangular or trapezoidal annular protrusion 211 with a cross section in the axial direction, may be used.

Preferably, the outer peripheral wall of the annular protrusion 211 is a curved surface. It is understood that in other embodiments, the outer peripheral wall of the annular protrusion 211 may have other shapes such as a slope.

So set up, can further reduce the loss of stress, and have excellent homogeneous prestress effect.

It should be noted that the first embedded element 210 and the second embedded element 220 may be of the same type or different types, and may be selected according to a working condition.

Referring to fig. 9, fig. 9 is a cross-sectional view of a precast pile 300 according to an embodiment of the present invention.

The precast pile 300 is manufactured by arranging the steel bars 310 according to the stress requirement after forming to form a steel bar cage, pre-stretching the steel bar cage to generate prestress to offset or reduce the tensile stress generated by external load, so that no crack is generated or the time for generating the crack is prolonged under the condition of normal use of the steel bars 310; the reinforcement cage is placed into a mold after being formed, then concrete 320 is poured into the mold, a centrifugal mode is started if a hollow precast pile 300 needs to be made, the precast pile is placed in the mold in a standing mode if an entity pile needs to be made, and the precast pile 300 is formed after drying and demolding after being formed. The pile manufacturing method is simple, and the manufactured precast pile 300 is high in strength, flexible in construction site and low in cost.

The precast pile 300 is connected by opposing the reinforcing bars 310 connected to the first pre-embedded elements 210 to the reinforcing bars 310 connected to the second pre-embedded elements 220 and using the quick coupling assembly 100 when connecting two precast piles 300.

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 looseness, strong bond force with the concrete 320, good weldability and upsetting property, material saving and the like.

It is understood that in other embodiments, other types of rebar 310 are possible, such as stainless steel rods, hot rolled steel rods, medium strength pre-stressed wires, stress-relief wires, steel strands, pre-stressed threaded rebar, and the like.

In an embodiment of the present invention, the reinforcing bars 310, the first embedded elements 210 and the second embedded elements 220 are all pre-embedded in the concrete 320 in advance to become embedded elements.

It is understood that in other embodiments, the first embedded element 210 and the second embedded element 220 can be connected with the steel bar at a later stage. The operation steps are that 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.

In an embodiment of the present invention, the precast pile 300 is a hollow tubular pile.

It is understood that in other embodiments, the precast pile 300 may also be a hollow square pile, a solid tubular pile, a solid square pile, a solid pointed pile or other special-shaped piles.

In one embodiment, the reinforcement cage is subjected to a tensioning step and a relaxation step. The tensioning step is to apply prestress to the reinforcement cage in advance so that the reinforcement cage bears compressive stress and further generates certain deformation to improve the load which can be borne by the reinforcement cage, wherein the load comprises the self weight of a component, wind load, snow load, earthquake load action and the like; because the prestress applied in the tensioning step is larger, in order to reduce the prestress loss of the reinforcement cage, the tensioning step is required.

In one embodiment, after the first pile body 301 and the second pile body 302 are butted, a pile hoop 330 is arranged on the peripheral wall of the precast pile 300 after the butting is completed, and the pile hoop 330 is used for fastening the butted part of 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 misplaced in service.

The utility model provides a quick docking mechanism 200 only needs to connect first embedded component 210 or second embedded component 220 in the one end of reinforcing bar 310, can link to each other through quick docking subassembly 100 between two reinforcing bars 310, connects portably to joint strength is high, and especially tensile properties is good.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be taken as limiting the present invention, and that suitable modifications and variations of the above embodiments are within the scope of the invention as claimed.

Claims (10)

1. A quick butt joint assembly (100) is characterized by comprising a plug-in platform (10) and a base (20), wherein the plug-in platform (10) comprises a first fixing part (11), a plug-in part (12) and an extending part (13) positioned between the first fixing part (11) and the plug-in part (12), the plug-in part (12) is convexly arranged on the extending part (13), and a step surface (14) is formed between the plug-in part (12) and the extending part (13); the base (20) comprises a second fixing part (21) and a plurality of fins (22) connected to the second fixing part (21), and the plurality of fins (22) are arranged in a surrounding mode; the inserting table (10) can penetrate through openings formed by enclosing a plurality of fins (22) through elastic expansion of the fins (22), the fins (22) can elastically contract and enclose the extending parts (13), and the end surfaces (221) of the fins (22) and the step surfaces (14) of the inserting table (10) are oppositely arranged;

an abdicating groove (15) is formed in the end face (221) of the inserting table (10) far away from the inserting part (12).

2. The quick docking assembly (100) of claim 1, wherein the relief groove (15) is an arcuate groove.

3. The quick docking assembly (100) according to claim 2, wherein the depth of the relief groove (15) in the axial direction of the insert table (10) is 0.1mm to 10 mm.

4. The quick docking assembly (100) as claimed in claim 1, wherein the extension (13) of the docking station (10) is provided with at least two positioning slots (16), and the two positioning slots (16) are symmetrical around the axis of the docking station (10).

5. The quick docking assembly (100) of claim 4, wherein the depth of the positioning slot (16) in the radial direction of the docking station (10) is 0.05mm to 5 mm.

6. The quick docking assembly (100) according to claim 1, wherein the ratio of the height of the first fixing portion (11) in the axial direction of the docking station (10) to the height of the docking station (10) in the axial direction is (0.1-0.5): 1.

7. the quick docking assembly (100) according to claim 4, wherein the ratio of the height of the socket (12) in the axial direction of the socket (10) to the height of the socket (10) in the axial direction is (0.05-0.2): 1.

8. the quick docking assembly (100) according to claim 7, wherein 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.

9. the quick docking assembly (100) of claim 7, characterized in that the ratio of the height of the fins (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.

10. a quick docking mechanism (200) comprising a first pre-embedded element (210), a second pre-embedded element (220) and a quick docking assembly (100) according to any one of claims 1 to 9; the first fixing part (11) of the inserting table (10) is connected to the first embedded element (210), and the second fixing part (21) of the base (20) is connected to the second embedded element (220); the first embedded element (210) and the second embedded element (220) are connected through the quick butt joint assembly (100).

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