CN211690304U - 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, wherein the quick butt joint component comprises an inserting platform, a base and a buckle, the inserting platform comprises an inserting part and a fixed part which are oppositely arranged, and a first groove is arranged on the inserting part; the base comprises a first end face and a second end face which are oppositely arranged; the ring buckle is provided with an opening and can be elastically contracted, and the ring buckle is sleeved on the inserting table and accommodated in the first groove; the ring buckle can be inserted into the base along the insertion direction together with the insertion part of the insertion platform, and the ring buckle can abut against the second end face of the base through elastic expansion and limit the reverse movement of the insertion platform along the insertion direction. The utility model provides a quick butt joint subassembly installation is simple, and after the grafting portion that will insert the platform inserted the base, the latch closure can partly pop out first recess and support and hold on the second terminal surface of base through the elasticity extension, and the butt face between latch closure and the second terminal surface is similar to the annular, and the butt area is big, and the opposition can be drawn the performance and has great promotion.

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 the current quick butt joint assembly, the quick butt joint assembly with high joint strength is difficult to install, and the quick butt joint assembly with simple installation has low joint strength, particularly poor tensile property; moreover, the structure of the butt joint part is often in a special shape, the requirement on materials is high, the processing technology is complex, and the cost of the quick butt joint component is high. Therefore, there is a need for a quick docking assembly and a quick docking mechanism that are simple to install, secure joint strength, and are inexpensive.

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 rapid butt joint assembly, which comprises an inserting table, a base and a ring buckle, wherein the inserting table comprises an inserting part and a fixed part which are oppositely arranged, and a first groove is arranged on the inserting part; the base comprises a first end face and a second end face which are oppositely arranged; the ring buckle is provided with an opening and can be elastically contracted, and the ring buckle is sleeved on the inserting table and accommodated in the first groove; the ring buckle can be inserted into the base along the insertion direction together with the insertion part of the plug-in platform, and the ring buckle can abut against the second end face of the base through elastic expansion and limit the plug-in platform to move reversely along the insertion direction.

The utility model provides a quick butt joint subassembly installation is simple, and after the grafting portion that will insert the platform inserted the base, the latch closure can partly pop out first recess and support and hold on the second terminal surface of base through elastic expansion, and the butt face between latch closure and the second terminal surface is similar to the annular, and the butt area is big, can guarantee the joint strength between first pre-buried component and the pre-buried component of second, especially has great promotion to tensile strength. Furthermore, the utility model provides a quick butt joint subassembly processing simple process, low cost is suitable for the scene extensively.

In an embodiment of the present invention, the first groove is in the height of the inserting platform in the axial direction and the height of the ring buckle in the axial direction are matched, so that the ring buckle is in the butt with three positions of stress when the second end surface of the base is provided, and the three positions of stress are respectively the ring buckle with two butt positions of the wall surface of the first groove which are opposite in the axial direction, and the ring buckle with the butt position of the base.

So set up, when inserting the platform along inserting the direction reverse movement, the latch closure can not produce turning up or wrench movement by a wide margin, and the latch closure has three atresss at least between with inserting platform and the base for the junction stability between latch closure and inserting platform and the base is high, has avoided the latch closure and has inserted and produce the pin joint between platform or the base, thereby has avoided the local tensile stress that the pin joint produced too big, the uneven scheduling problem of atress leads to fast docking subassembly life-span defect such as shorten.

In an embodiment of the present invention, the first groove is located the height ratio of the inserting platform in the axial direction is 0.1mm to 5mm higher than the height of the ring buckle in the axial direction.

So set up, the height of first recess slightly is greater than the height of latch closure, and the latch closure can not receive the hindrance of first recess and can with insert the platform and form the state of three atress between the base when elasticity extension for quick butt joint subassembly stability in use is good, long service life.

In an embodiment of the present invention, the first groove is located the height ratio of the inserting platform in the axial direction is 1mm to 2mm higher than the height of the ring buckle in the axial direction.

So set up, can further reduce the range of turning up or wrench movement that the latch closure produced, avoided the latch closure and inserted the platform or base between produce the pin joint, further improve the stability in use of quick butt joint subassembly.

In an embodiment of the present invention, after the inserting portion of the inserting platform is inserted into the base, a gap is formed between the ring buckle and the second end surface of the base.

So set up, can prevent under some circumstances that the latch closure from being blocked unable elastic expansion on the inner wall of base, improved the flexibility of product assembly and the reliability when using.

In an embodiment of the invention, the distance of the gap is 0.5mm to 5 mm.

With the arrangement, the preferable gap distance can ensure that the ring buckle can abut against the second end face of the base through elastic expansion when in use, and the problems of unstable inserting table and the like caused by overlarge gap are avoided.

A quick butt joint mechanism comprises a first embedded element, a second embedded element and the quick butt joint assembly; the inserting table is connected with the first embedded element, the base is connected with the second embedded element, and the first embedded element is connected with the second embedded element 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.

The utility model discloses an in the embodiment, first pre-buried component with between the pre-buried component of second in the inner chamber of first pre-buried component and at least one department is equipped with the rubber coating in the inner chamber of pre-buried component of second.

By the arrangement, the parts at the covering part of the glue coating layer are combined more tightly and firmly, and the corrosion resistance of the quick butt joint mechanism 200 is improved; after the glue coating layer solidification, can also bear the power, prevent that the latch closure 30 from warping behind the atress for quick docking mechanism 200's atress performance is better, and can also play the effect of even atress behind the glue coating layer solidification, even insert the uneven condition of stress slightly between platform 10 and the base 20, glue coating after the solidification also can the effect of balanced power, has improved quick docking mechanism 200's tensile strength, has prolonged quick docking mechanism 200's life.

In one embodiment of the present invention, the glue coating layer is a paste-like two-liquid hybrid hardened glue (AB glue).

Due to the arrangement, the paste glue is convenient to attach to the quick docking mechanism and is not easy to flow, and the paste glue can be extruded between the ring buckle and the inserting table and between the ring buckle and the base during docking, so that the ring buckle is fixed in the first groove, and the whole quick docking mechanism is better in use stability; in addition, the AB glue has the advantages of good storage and transportation performance, more flexible use, high bonding strength, good compression resistance after curing and the like.

In an embodiment of the present invention, the first pre-buried element and/or the second pre-buried element are provided with an annular protrusion at an end connected to the quick docking assembly.

So set up, annular lug 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 or second embedded component from damaging.

The utility model discloses an embodiment, first pre-buried component reaches second pre-buried component one end all has the shrink mouth for be connected with the reinforcing bar, the reinforcing bar with first pre-buried component or the one end that the pre-buried component of second is connected has the upset, the shrink mouth be used for right the upset of reinforcing bar is spacing.

So set up, it is simple and convenient to be connected between first embedded component or the second embedded component and the reinforcing bar, and the engineering time is short, and the fastness to connection is high.

In an embodiment of the present invention, the first pre-embedded element and the second pre-embedded element both have an internal thread for connecting with a steel bar.

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

Drawings

Fig. 1 is a schematic structural view of a quick docking assembly according to a first 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 the buckle shown in FIG. 1;

FIG. 5 is a cross-sectional view of the clasp of FIG. 4;

FIG. 6 is an enlarged view of a portion A of FIG. 1;

fig. 7 is a schematic structural view of a quick docking assembly according to a second embodiment of the present invention;

FIG. 8 is a partial enlarged view of portion B of FIG. 7;

fig. 9 is a schematic structural view of a quick docking mechanism according to an embodiment of the present invention;

figure 10 is a cross-sectional view of the first fastener insert of figure 9;

figure 11 is a cross-sectional view of the second fastener insert shown in figure 9;

fig. 12 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; 30. looping; 11. a fixed part; 12. a plug-in part; 13. a first groove; 21. a first end face; 22. a second end face; 31. an opening; 200. a quick docking mechanism; 210. a first pre-buried element; 220. a second pre-embedded element; 230. gluing layers; 211. an annular projection; 300. prefabricating a pile; 310. reinforcing steel bars; 311. heading; 320. and (3) concrete.

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 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 5, fig. 1 is a schematic structural diagram of a quick docking assembly 100 according to a first 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 schematic structural view of the buckle 30 shown in FIG. 1; fig. 5 is a cross-sectional view of the buckle 30 shown in fig. 4.

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 be used in other engineering fields, such as fabricated buildings, etc., and may also be used to connect the reinforcing bars 310 in other applications, such as pouring concrete, etc.

The quick docking assembly 100 comprises a docking station 10, a base 20 and a buckle 30, wherein the docking station 10 comprises a docking part 12 and a fixing part 11 which are oppositely arranged, and the docking part 12 is provided with a first groove 13; the base 20 comprises a first end face 21 and a second end face 22 which are oppositely arranged; the ring buckle 30 is provided with an opening and can be elastically contracted, and the ring buckle 30 is sleeved on the inserting table 10 and is contained in the first groove 13; the ring 30 can be inserted into the base 20 along the insertion direction together with the insertion part 12 of the socket 10, and the ring 30 can be elastically expanded to abut against the second end surface 22 of the base 20 and limit the reverse movement of the socket 10 along the insertion direction α.

The socket 10 is a cylindrical component, the fixing portion 11 is used for fixing with an external component, and the inserting portion 12 is used for inserting into the buckle 30. 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 base 20 is a hollow column shape and is matched with the insert table 10. Preferably, the base 20 is 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 ring buckle 30 is a ring structure having an opening. Preferably, the ring buckle 30 is a circular circlip; in other embodiments, the clasp 30 can be of other resilient configurations, as well as other shapes.

In the present embodiment, the socket 10, the base 20, and the grommet 30 are all of stainless steel structure. In other embodiments, the material may be made of other materials.

The insertion direction α in the present invention is a direction in which the fixing portion 11 is directed to the mating portion 12, i.e., a direction of an arrow shown in fig. 1. 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 use process of the quick docking assembly 100 is as follows: since the ring buckle 30 has an opening, the ring buckle 30 can be elastically contracted and accommodated in the first groove 13. At this time, the ring buckle 30 extends into the base 20 together with the insertion part 12, and the ring buckle 30 is always accommodated in the first groove 13 in the insertion process because the inner wall of the base 20 gives pressure to the ring buckle 30 towards the axial direction; after the ring buckle 30 passes through the base 20 along with the insertion portion 12, the ring buckle 30 expands at its own elasticity to partially pop out the first groove 13, and the popped part abuts against the second end surface 22 of the base 20, so that the ring buckle 30 is clamped between the insert table 10 and the base 20, thereby completing the connection between the first embedded element 210 and the second embedded element 220.

The utility model provides a quick butt joint subassembly 100 installation is simple, and the grafting portion 12 of platform 10 inserts base 20 back, and buckle 30 can partly pop out first recess 13 and support and hold on the second terminal surface 22 of base 20 through the elasticity extension, and the butt face between buckle 30 and the second terminal surface 22 is similar to the annular, and the butt area is big, can guarantee the joint strength between first embedded component 210 and the embedded component 220 of second, especially has great promotion to tensile strength. 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.

Referring to fig. 6, fig. 6 is a partially enlarged view of a portion a in fig. 1.

In an embodiment of the present invention, the height of the first groove 13 in the axial direction (α direction shown in fig. 1) of the socket 10 is matched with the height of the ring buckle 30 in the axial direction (α direction shown in fig. 1), so that the ring buckle 30 is stressed at least three places when abutting against the second end surface 22 of the base 20, and the three places of stress are two abutting places (a place and b place shown in fig. 1) where the ring buckle 30 is opposite to the wall surface of the first groove 13 in the axial direction, and the abutting place (c place shown in fig. 1) where the ring buckle 30 is abutted against the base 20.

So set up, when inserting the platform 10 along the reverse movement of inserting direction alpha, the latch closure 30 can not produce turning up or wrench movement by a wide margin, have three atress between latch closure 30 and inserting platform 10 and base 20 for the junction stability between latch closure 30 and inserting platform 10 and the base 20 is high, has avoided producing the pin joint between latch closure 30 and inserting platform 10 or base 20, thereby has avoided the local tensile stress that the pin joint produced too big, the defect such as quick butt joint subassembly life-span that the uneven scheduling problem of atress leads to of stress to shorten.

In an embodiment of the present invention, the shape of the first groove 13 can make the ring buckle 30 bear four or more forces when abutting against the second end surface 22 of the base 20.

In an embodiment of the present invention, the shape of the first groove 13 is such that a surface contact is formed between the ring buckle 30 and the second end surface 22 of the base 20, and between the ring buckle 30 and the first groove 13.

It is understood that, regardless of the force condition of the buckle 30, the buckle 30 may be pressed against the second end 22 of the base 20 at only two positions.

Referring to fig. 7 to 8, fig. 7 is a schematic structural diagram of a quick docking assembly according to a second embodiment of the present invention; fig. 8 is a partially enlarged view of a portion B in fig. 7.

In an embodiment of the present invention, the height of the first groove 13 in the α direction is much larger than the height of the ring buckle 30 in the α direction, at most only one of the two end surfaces of the ring buckle 30 in the α direction can abut on the inner wall surface of the first groove 13, and at this time, if the platform 10 moves in the opposite direction of the insertion direction α, the ring buckle 30 has at most two stress points, which are the abutting point (d shown in fig. 8) of the surface of the ring buckle 30 and the first groove 13 away from the fixing portion in the α direction and the abutting point (e shown in fig. 8) of the ring buckle 30 and the base 20.

With such an arrangement, the ring buckle 30 is easy to process and low in cost.

In an embodiment of the present invention, the height of the first groove 13 in the axial direction of the inserting table 10 is 0.1mm to 5mm higher than the height of the ring buckle 30 in the axial direction.

So set up, the height of first recess 13 slightly is greater than the height of latch closure 30, and latch closure 30 can not receive the hindrance of first recess 13 and can with insert the state that forms three atress between platform 10 and the base 20 when elasticity extension for quick butt joint subassembly stability in use is good, long service life.

In an embodiment of the present invention, the height of the first groove 13 in the axial direction of the inserting table 10 is 1mm to 2mm higher than the height of the ring buckle 30 in the axial direction.

So set up, can further reduce the range of turning up or wrench movement that the latch closure 30 produced, avoided producing the pin joint between latch closure 30 and the platform 10 or base 20, further improve the stability in use of quick butt joint subassembly.

In one embodiment of the present invention, after the inserting portion 12 of the platform 10 is inserted into the base 20, a gap is formed between the ring buckle 30 and the second end surface 22 of the base 20.

So set up, can prevent under some circumstances that latch 30 from being blocked unable elastic expansion on the inner wall of base 20, improved the flexibility of product assembly and the reliability when using.

In an embodiment of the invention, the distance of the gap is 0.5mm to 5 mm.

With such an arrangement, the preferable gap distance can ensure that the ring buckle 30 can abut against the second end surface 22 of the base 20 through elastic expansion when in use, and avoid the problems of instability of the socket 10 and the like caused by an excessively large gap.

Referring to fig. 6 to 8, fig. 6 is a schematic structural diagram of a quick docking mechanism 200 according to an embodiment of the present invention; fig. 7 is a cross-sectional view of the first fastener insert 210 shown in fig. 6; figure 8 is a cross-sectional view of the second fastener insert 220 of figure 6.

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 inserting table 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 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 an embodiment of the present invention, a glue coating layer 230 is disposed between the first pre-buried element 210 and the second pre-buried element 220, in the inner cavity of the first pre-buried element 210 and in the inner cavity of the second pre-buried element 220.

By the arrangement, the parts at the covering part of the glue coating layer 230 are combined more tightly and firmly, and the corrosion resistance of the quick butt joint mechanism 200 is improved; when the glue coating layer 230 solidification back, can also bear the effect of power, prevent that the latch closure 30 from warping behind the atress, make quick docking mechanism 200's atress performance better, and can also play the effect of even atress behind the glue coating layer 230 solidification, even have the uneven condition of atress slightly between inserting platform 10 and the base 20, the glue coating layer 230 after the solidification also can the effect of balanced power, improved quick docking mechanism 200's tensile strength, prolonged quick docking mechanism 200's life.

In one embodiment of the present invention, the glue layer 230 is a paste-like two-liquid hybrid hardened glue (AB glue).

Due to the arrangement, the paste glue is convenient to attach to the quick docking mechanism 200 and is not easy to flow, and the paste glue can be extruded between the ring buckle 30 and the inserting table 10 and between the ring buckle 30 and the base 20 during docking, so that the ring buckle 30 is fixed in the first groove 13, and the whole quick docking mechanism 200 is better in use stability; in addition, the AB glue has the advantages of good storage and transportation performance, more flexible use, high bonding strength, good compression resistance, good toughness, good oil resistance, water resistance, acid and alkali resistance, moisture resistance, good dust resistance and the like after being cured.

In one embodiment, the AB glue is an epoxy. It is understood that in other embodiments, the AB glue may be other glues or other compositions of AB glue.

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, the contraction opening is used for limiting the upset 311 of the steel bar 310, and the upset 311 of the steel bar 310 is prevented from escaping from the first embedded element 210 or the second embedded element 220.

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, the inner walls of the first fastener insert 210 or the second fastener insert 220 are tapered inwardly to form a tapered opening. It is understood that in other embodiments, both the inner wall and the outer wall of the first fastener insert 210 or the second fastener insert 220 may be shrunk inward to form a shrink opening.

In an embodiment of the present invention, the first embedded element 210 or the second embedded element 220 is screwed to 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 precast pile in a shrinkage or threaded manner 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 precast pile in a shrinkage or threaded manner. Installing the inserting table 10 on the first embedded element 210, installing the ring buckle 30 in the first groove 13 of the inserting table 10, and installing the base 20 on the second embedded element 220 in a construction site; burying the second precast pile underground, keeping the second pre-buried element 220 above the horizontal plane (generally, the height of the part of the second precast pile above the horizontal plane is about 1 m), coating a glue coating layer 230 on the surface of the second precast pile, and making the glue coating layer 230 flow into the inner cavity of the second pre-buried element 220; the first precast pile 300 is spliced with the second precast pile 300 through a crane or other methods, 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, so that the inserting table 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 on part of construction sites, no external force is required to be applied), when the ring buckle 30 supports the second end face 22 of the base 20 through elastic expansion, a sound is emitted, and the installation completion can be judged. In the installation process, most of the glue coating layers 230 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 ring buckle 30 and the second embedded element 220, between the inserting table 10 and the base 20, between the base 20 and the ring buckle 30, and between the inserting table 10 and the ring buckle 30, and a part of the glue coating layers 230 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 insert station 10 is connected to the first fastener element 210 and/or the base 20 is connected to the second fastener element 220 by a screw.

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, the first fastener insert 210 is the same type as the second fastener insert 220. It is understood that in other embodiments, the first fastener insert 210 and the second fastener insert 220 may have different types.

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 docking assembly 100.

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.

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 into 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.

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 an inserting table (10), a base (20) and a buckle (30), wherein the inserting table (10) comprises a fixing part (11) and an inserting part (12) which are oppositely arranged, and a first groove (13) is formed in the inserting part (12); the base (20) comprises a first end face (21) and a second end face (22) which are oppositely arranged; the ring buckle (30) is provided with an opening and can be elastically contracted, and the ring buckle (30) is sleeved on the inserting table (10) and contained in the first groove (13);

the ring buckle (30) can be inserted into the base (20) along the insertion direction together with the insertion part (12) of the plug-in platform (10), and the ring buckle (30) can abut against the second end face (22) of the base (20) through elastic expansion and limit the reverse movement of the plug-in platform (10) along the insertion direction.

2. The quick docking assembly (100) according to claim 1, wherein the height of the first groove (13) in the axial direction of the socket (10) is matched with the height of the ring buckle (30) in the axial direction, so that the ring buckle (30) bears at least three forces when abutting against the second end face (22) of the base (20), wherein the three forces are respectively two abutting positions of the ring buckle (30) and the wall surface of the first groove (13) opposite in the axial direction, and the abutting positions of the ring buckle (30) and the base (20).

3. The quick docking assembly (100) according to claim 2, wherein the height of the first groove (13) in the axial direction of the docking station (10) is 0.1mm to 5mm higher than the height of the ring buckle (30) in the axial direction.

4. The quick docking assembly (100) as recited in claim 1, characterized in that the ring buckle (30) has a clearance with the second end face (22) of the base (20) after the insertion portion (12) of the socket (10) is inserted into the base (20).

5. The quick docking assembly (100) of claim 4, wherein the gap is 0.5mm to 5mm apart.

6. 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 5; insert platform (10) connect in first pre-buried component (210), base (20) connect in second pre-buried component (220), first pre-buried component (210) with pass through between second pre-buried component (220) quick butt joint subassembly (100) is connected.

7. The quick docking mechanism (200) as claimed in claim 6, wherein a glue layer (230) is disposed between the first pre-embedded element (210) and the second pre-embedded element (220), in the inner cavity of the first pre-embedded element (210), and in at least one of the inner cavities of the second pre-embedded element (220).

8. The quick docking mechanism (200) of claim 7, wherein said glue layer (230) is a paste-like two-component hybrid cured glue.

9. The quick docking mechanism (200) as claimed in claim 6, wherein the first pre-embedded element (210) and/or the second pre-embedded element (220) has an annular protrusion (211) at the end connected to the quick docking assembly (100).

10. The quick docking mechanism (200) as claimed in claim 6, wherein each of the first fastener insert (210) and the second fastener insert (220) has a constriction at one end for connecting with a steel bar (310), and the end of the steel bar (310) connected with the first fastener insert (210) or the second fastener insert (220) has an upset (311), and the constriction is used for limiting the upset (311) of the steel bar (310); alternatively, the first and second electrodes may be,

the first embedded element (210) and the second embedded element (220) are provided with internal threads and are used for being connected with a steel bar (310).

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