CN211690308U - Quick docking mechanism - Google Patents

Abstract

The utility model provides a quick butt joint mechanism, which comprises a pre-embedded element and a quick butt joint component connected with the pre-embedded element; the embedded element comprises a fixed section and a limiting section connected with the fixed section, and the fixed section is used for connecting the quick butt joint assembly; the internal diameter of canned paragraph is greater than the internal diameter of spacing section, forms the changeover portion between the inner wall of canned paragraph and the inner wall of spacing section, and the chamfer sets up and forms the connection face between the periphery wall of embedded element and the terminal surface that embedded element is close to spacing section, and the internal face of changeover portion is parallel with connecting the face. The utility model provides an among the quick docking mechanism, the internal face of changeover portion with be connected face parallel arrangement, prestretching the steel reinforcement cage in-process, not only can reduce quick docking mechanism stress concentration, lead to quick docking mechanism to produce moulding deformation or even fracture inefficacy because of the design rigidity is not enough, can provide bigger space at the axial direction of pre-buried component moreover, improved quick docking mechanism's rigidity toughness.

Description

Quick docking mechanism

Technical Field

The utility model relates to a building technical field especially relates to a 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 mechanism is generally adopted to connect the reinforcing steel bars inside the two prefabricated reinforced concrete piles. In the actual production of the precast pile, the steel reinforcement cage with the steel reinforcement arranged therein is pre-tensioned to obtain a pre-stress to offset or reduce the tensile stress generated by the external load. However, the pre-embedded element is prone to generate a defect of stress concentration in the pre-stretching process, so that the bearing capacity of the pre-embedded element is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for an improved quick docking mechanism.

The utility model provides a quick butt joint mechanism, which comprises a pre-embedded element and a quick butt joint component connected with the pre-embedded element; the embedded element comprises a fixed section and a limiting section connected with the fixed section, and the fixed section is used for connecting the quick butt joint assembly; the inner diameter of the fixed section is larger than that of the limiting section, a transition section is formed between the inner wall of the fixed section and the inner wall of the limiting section, the outer peripheral wall of the embedded element and the end face, close to the limiting section, of the embedded element are arranged in a chamfering mode to form a connecting face, and the inner wall face of the transition section is parallel to the connecting face.

The utility model provides an among the quick docking mechanism, the internal face of changeover portion is with being connected face parallel arrangement, prestretching the steel reinforcement cage in-process, not only can reduce quick docking mechanism stress concentration, lead to quick docking mechanism to produce moulding deformation or even fracture failure because of the design rigidity is not enough, can provide bigger space at the axial direction of embedded component in addition, can enough satisfy and carry on spacingly to the reinforcing bar, allow the reinforcing bar to have bigger displacement relatively self in the axial again simultaneously, improved quick docking mechanism's rigidity toughness.

When the reinforcing bar pier head held the spacing section of embedded element along the axial top, the changeover portion internal face can produce slight tensile deformation, and the reinforcing bar can obtain bigger displacement volume in the axial, prevents that embedded element from producing because rigidity is not enough and warping or even breaking to prevent reinforcing bar pier head department fracture inefficacy. The connecting surface of the embedded element is parallel to the inner wall surface of the transition section, namely, in the direction perpendicular to the inner wall surface of the transition section or the connecting surface, the distance between the connecting surface and the inner wall surface of the transition section is basically equal everywhere, namely, wall materials with uniform thickness are obtained between the connecting surface and the inner wall surface of the transition section, and the situation that the inner wall surface of the transition section is slightly deformed due to the uneven wall thickness between the connecting surface and the inner wall surface of the transition section is blocked or slightly deformed and then the stress is uneven can be prevented.

In an embodiment of the present invention, an included angle between an inner wall surface of the limiting section and an inner wall surface of the fixing section is 100 ° to 170 °.

So set up, the turning angle that embedded component inner wall fixed section passes to spacing section is less, and the fixed section can be connected with spacing section more gently, and adopts comparatively gentle turning angle to be favorable to improving the mechanical properties when the part atress among the machine part. In the process that the reinforcing steel bar supports the inner wall of the spacing section of the embedded element along the axial direction, the tensile stress borne by the embedded element can be concentrated and distributed on the inner wall of the transition section between the fixing section and the spacing section, and the included angle of 100-170 degrees is arranged between the inner wall surface of the spacing section and the inner wall surface of the fixing section, so that the concentrated stress at the joint of the inner walls can be obviously reduced, and the adverse effects of insufficient strength of the embedded element and breakage of materials caused by stress concentration at the joint of the inner walls of the fixing section and the spacing section. In addition, the setting of above-mentioned contained angle can also increase the area of contact of reinforcing bar pier nose and spacing section, prevents that reinforcing bar pier nose terminal surface from leading to quick docking mechanism to become invalid because pressure is too big by the conquassation.

In an embodiment of the present invention, the quick docking assembly includes a first docking station and a first base, the first docking station includes a first fixing portion, a first inserting portion and a first extending portion located between the first fixing portion and the first inserting portion, the first inserting portion is convexly disposed on the first extending portion, and a first step surface is formed between the first inserting portion and the first extending portion; the first 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 first 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 first extending parts, and the end faces of the fins and the first step face of the first inserting table are arranged oppositely;

the embedded element comprises a first embedded element, and the first embedded element is connected to the first fixing portion of the first inserting platform.

So set up, the embedded component who is connected with first platform is the internal face of above-mentioned changeover portion and the embedded component that is connected the face parallel, and the embedded component who is connected with first base can be foretell embedded component, also can be the embedded component of current model, can select according to actual need to reduce cost. Moreover, the utility model provides a quick docking mechanism installs simply, inserts the first grafting portion of first inserting platform into first base after, the fin can elasticity shrink and enclose the extension of first base, and the tip butt of fin is in the step face of first inserting platform, and the butt face between the tip of fin and the first step face of first inserting platform is similar to the annular, and the butt area is big, can guarantee the joint strength between two pre-buried components, especially has great promotion to tensile strength; the fin not only can enclose the first extension of inserting the platform, can also play spacing effect to first extension, prevents that first extension from rocking in radial direction. Furthermore, the utility model provides a quick docking mechanism processing technology is simple, low cost, and it is extensive to be suitable for the scene.

In an embodiment of the present invention, the quick docking assembly includes a first docking station and a first base, the first docking station includes a first fixing portion, a first inserting portion and a first extending portion located between the first fixing portion and the first inserting portion, the first inserting portion is convexly disposed on the first extending portion, and a first step surface is formed between the first inserting portion and the first extending portion; the first 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 first 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 first extending parts, and the end faces of the fins and the first step face of the first inserting table are arranged oppositely;

the embedded element further comprises a second embedded element, and the second embedded element is connected to the second fixing portion of the first base.

So set up, the embedded component who is connected with first base is foretell embedded component, and the embedded component who is connected with first platform of inserting can be the internal face of above-mentioned changeover portion and the embedded component that is connected the face and is parallel, also can be the embedded component of current model, can select according to actual need to reduce cost.

In an embodiment of the present invention, the quick docking assembly includes a second inserting table, a second base and a ring buckle, the second inserting table includes a third fixing portion and a second inserting portion, which are oppositely disposed, and the second inserting portion is provided with a first groove; the second 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 second insert table and contained in the first groove; the ring buckle can be inserted into the second base along with the second inserting part of the second inserting platform along the inserting direction, and the ring buckle can support the second end face of the second base through elastic expansion and limit the reverse movement of the second inserting platform along the inserting direction;

the embedded elements comprise a third embedded element, and the third embedded element is connected to the third fixing part of the second inserting platform.

So set up, the embedded component who is connected with the second socket is the internal face of above-mentioned changeover portion and the embedded component that is connected face parallel, and the embedded component who is connected with the second base can be foretell embedded component, also can be the embedded component of current model, can select according to actual need to reduce cost. And, the utility model provides a quick docking mechanism inserts the second grafting portion of second jack into the second base after, the latch closure can pop out first recess and support through elasticity extension part and hold on the second terminal surface of second base, 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 two pre-buried components, especially has great promotion to tensile strength. Furthermore, the utility model provides a quick docking mechanism processing technology is simple, low cost, and it is extensive to be suitable for the scene.

In an embodiment of the present invention, the quick docking assembly includes a second inserting table, a second base and a ring buckle, the second inserting table includes a third fixing portion and a second inserting portion, which are oppositely disposed, and the second inserting portion is provided with a first groove; the second 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 second insert table and contained in the first groove; the ring buckle can be inserted into the second base along with the second inserting part of the second inserting platform along the inserting direction, and the ring buckle can support the second end face of the second base through elastic expansion and limit the reverse movement of the second inserting platform along the inserting direction;

the embedded elements comprise fourth embedded elements, and the fourth embedded elements are connected to the second base.

So set up, the embedded component who is connected with the second base is foretell embedded component, and the embedded component who inserts the platform with the second and be connected can be the internal face of above-mentioned changeover portion and the embedded component that is connected the face and is parallel, also can be the embedded component of current model, can select according to actual need to reduce cost.

The utility model discloses an in one embodiment, pre-buried component is keeping away from still protruding annular lug that is equipped with on the periphery wall of connecting face one end.

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 pre-buried component from damaging.

In an embodiment of the present invention, the connection surface and the inner wall surface of the transition section are both planes.

So set up, the processing of pre-buried component of being convenient for. The connecting surface can be obtained during molding or by chamfering the end surface of one side of the embedded element close to the limiting section; the inner wall surface of the transition section is obtained during molding, and can also be obtained by a drill bit or a boring cutter through a hole machining mode of drilling or boring, so that the obtained inner wall surface and the connecting surface boundary of the transition section are low in cost.

In an embodiment of the present invention, the connection surface and the inner wall surface of the transition section are both arc surfaces.

By the arrangement, the connecting surface of the transition section is connected with the limiting section and the fixing section in a smoother mode, so that the embedded elements can be further prevented from being damaged by stress concentration; and, the connecting surface and the changeover portion internal wall face of smooth transition consequently can be at reinforcing bar top holding spacing section in-process, can allow the reinforcing bar to obtain bigger axial displacement relative to embedded component, prevent reinforcing bar fracture or embedded component spacing section fracture inefficacy.

In an embodiment of the present invention, the outer peripheral wall of the embedded element relatively far away from the one end of the fixed section is a non-circular polygon.

So set up, be convenient for cooperate mounting tool, install and fixed pre-buried component fast.

Drawings

Fig. 1 is a sectional view of a quick docking mechanism according to a first embodiment of the present invention;

fig. 2 is a cross-sectional view of a first embedded element in the quick docking mechanism shown in fig. 1;

fig. 3 is a cross-sectional view of a second embedded element in the quick docking mechanism shown in fig. 1;

FIG. 4 is a schematic structural view of a quick docking assembly of the quick docking mechanism shown in FIG. 1;

FIG. 5 is a schematic view of the quick docking mechanism shown in FIG. 1 in use;

fig. 6 is a sectional view of a quick docking mechanism according to a second embodiment of the present invention;

FIG. 7 is a schematic structural view of a quick docking assembly of the quick docking mechanism shown in FIG. 6;

FIG. 8 is a schematic view of the buckle shown in FIG. 6;

FIG. 9 is a schematic view of the quick docking mechanism shown in FIG. 6 in use;

fig. 10 is a cross-sectional view of a precast pile according to an embodiment of the present invention.

100. A quick docking assembly; 10. a first insert table; 11. a first fixed part; 12. a first insertion part; 13. a first extension portion; 14. a first step surface; 20. a first base; 21. a second fixed part; 22. a fin; 30. a second insert table; 31. a third fixed part; 32. a second insertion part; 33. a first groove; 40. a second base; 41. a first end face; 42. a second end face; 50. looping; 51. an opening; 200. a quick docking mechanism; 201. a fixed section; 202. a limiting section; 203. a transition section; 204. a connecting surface; 210. a first pre-buried element; 211. an annular projection; 220. a second pre-embedded element; 230. a third embedded element; 240. a fourth pre-buried 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 3, fig. 1 is a cross-sectional view of a quick docking mechanism 200 according to a first embodiment of the present invention; fig. 2 is a cross-sectional view of a first embedded element 210 in the quick docking mechanism 200 shown in fig. 1; fig. 3 is a cross-sectional view of the second fastener insert 220 of the quick docking mechanism 200 shown in fig. 1.

The utility model provides a quick docking mechanism 200, it is used for connecting two engineering parts. In this embodiment, the quick docking mechanism 200 is used to connect the reinforcing bars 310 in the precast pile 300. It is understood that in other embodiments, the quick docking mechanism 200 may also be applied to other engineering fields, such as fabricated buildings, and may also be used to connect reinforcing bars in other applications, such as pouring concrete.

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 the actual production of the precast pile, the steel reinforcement cage with the steel reinforcement arranged therein is pre-tensioned to obtain a pre-stress to offset or reduce the tensile stress generated by the external load. In the process of pre-stretching the steel bars, the steel bars can generate axial displacement relative to the quick butt joint mechanism, the quick butt joint mechanism bears great stress, and particularly, the material fracture is easily caused by stress concentration of the quick butt joint mechanism at the limiting part of the quick butt joint mechanism.

The quick docking mechanism 200 comprises a pre-buried element and a quick docking assembly 100 connected to the pre-buried element; the embedded element comprises a fixed section 201 and a limiting section 202 connected with the fixed section 201, and the fixed section 201 is used for connecting the quick butt joint assembly 100; the internal diameter of canned paragraph 201 is greater than spacing section 202's internal diameter, forms changeover portion 203 between the inner wall of canned paragraph 201 and spacing section 202's the inner wall, and the chamfer sets up and forms the connection face 204 between the terminal surface that the periphery wall of embedded element and embedded element are close to spacing section 202, and the internal face of changeover portion 203 is parallel with connection face 204.

The utility model provides an among the quick docking mechanism 200, the internal face of changeover portion 203 with be connected face 204 parallel arrangement, at prestressing reinforcement 310 cage in-process, not only can reduce quick docking mechanism 200 stress concentration, lead to quick docking mechanism 200 to produce moulding deformation or even fracture failure because of the design rigidity is not enough, and can provide bigger space at the axial direction of embedded element, can enough satisfy and carry on spacingly to reinforcement 310, allow reinforcement 310 to have bigger displacement on the axial by itself relatively simultaneously, the rigidity toughness of quick docking mechanism 200 has been improved.

When reinforcing bar 310 pier head held spacing section 202 of embedded component along the axial top, the internal face of changeover portion 203 can produce slight tensile deformation, and reinforcing bar 310 can obtain bigger displacement volume in the axial, prevents that embedded component from producing because rigidity is not enough and warping or even breaking to prevent reinforcing bar 310 pier head department fracture inefficacy. The connecting surface 204 of the embedded element is parallel to the inner wall surface of the transition section 203, that is, in the direction perpendicular to the inner wall surface of the transition section 203 or the connecting surface 204, the distance between the connecting surface 204 and the inner wall surface of the transition section 203 is substantially equal everywhere, which means that a wall material with uniform thickness is obtained between the connecting surface 204 and the inner wall surface of the transition section 203, and the stress unevenness caused by the slight deformation or the resistance when the inner wall surface of the transition section 203 slightly deforms due to the uneven wall thickness between the connecting surface 204 and the inner wall surface of the transition section 203 can be prevented.

In one embodiment of the present invention, the included angle between the inner wall surface of the limiting section 202 and the inner wall surface of the fixing section 201 is 100 ° to 170 °.

So set up, the turn angle that embedded component inner wall fixed segment 201 passed through to spacing section 202 is less, and fixed segment 201 can be connected with spacing section 202 more gently, and adopts comparatively gentle turn angle among the machine part to be favorable to improving the mechanical properties when the part atress. In the process that the reinforcing steel bar 310 supports the inner wall of the embedded element limiting section 202 in the axial direction, the tensile stress borne by the embedded element is concentrated and distributed on the inner wall of the transition section 203 between the fixed section 201 and the limiting section 202, and an included angle of 100-170 degrees is formed between the inner wall surface of the limiting section 202 and the inner wall surface of the fixed section 201, so that the concentrated stress at the joint of the inner walls can be obviously reduced, and the adverse effects of insufficient strength of the embedded element and material fracture at the joint of the inner walls of the fixed section 201 and the limiting section 202 due to stress concentration are prevented. In addition, the contact area of reinforcing bar 310 pier head and spacing section 202 can also be increased in the setting of above-mentioned contained angle, prevents that reinforcing bar 310 pier head terminal surface from leading to quick docking mechanism 200 to become invalid because pressure is too big by the conquassation.

Preferably, the included angle between the inner wall surface of the limiting section 202 and the inner wall surface of the fixing section 201 is 120 ° to 150 °.

Referring to fig. 4 and 5, fig. 4 is a schematic structural view of the quick docking assembly 100 in the quick docking mechanism 200 shown in fig. 1; fig. 5 is a schematic view of the quick docking mechanism 200 shown in fig. 1 in a use state.

As shown in fig. 1 to 5, in an embodiment of the present invention, the quick docking assembly 100 includes a first socket 10 and a first base 20, the first socket 10 includes a first fixing portion 11, a first inserting portion 12 and a first extending portion 13 located between the first fixing portion 11 and the first inserting portion 12, the first inserting portion 12 is convexly disposed on the first extending portion 13, and a first step surface 14 is formed between the first inserting portion 12 and the first extending portion 13; the first base 20 comprises 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 in a surrounding manner; the first socket 10 can pass through the opening 51 formed by enclosing the plurality of fins 22 by elastic expansion of the fins 22, the fins 22 can elastically contract and enclose the first extending portion 13, and the end surfaces of the fins 22 and the first step surface 14 of the first socket 10 are arranged oppositely.

The first socket 10 is a cylindrical component, the first fixing portion 11 is used for fixing with an external component, and the first inserting portion 12 is used for inserting into the buckle. To facilitate plugging, the first plug bed 10 is preferably substantially cylindrical; in other embodiments, the first 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 first docking station 10 is made of a solid material. It is understood that in other embodiments, the first insert table 10 may be made of a hollow material according to different force 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 first inserting portion 12 can penetrate and abut against the end surface 221 of the first base 20, the first inserting portion 12 can enable the first base 20 to be elastically expanded when penetrating through the first base 20, and after the first inserting portion 12 penetrates through the first base 20, the first base 20 elastically contracts and encloses the first extending portion 13, so that the effect of limiting the radial movement of the first inserting table 10 can be achieved.

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

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

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 fin 22 can be penetrated by the first inserting part 12 through elastic expansion, and after the first inserting part 12 penetrates through the fin 22, the fin 22 elastically contracts and encloses the first extending part 13 of the first inserting platform 10. Preferably, the plurality of fins 22 are circumferentially and uniformly arranged around the axis of the first 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 first inserting part 12 and the first extending part 13 of the first inserting platform 10 into the inner wall of the first base 20 and moving along the inserting direction alpha, wherein the first inserting part 12 of the first inserting platform 10 applies pressure on the fin 22, so that the fin 22 elastically expands until the first inserting part 12 passes through the fin 22; when the first socket 10 is applied with a force in the direction opposite to the insertion direction α, the end of the fin 22 abuts against the first step surface 14 between the first socket 12 and the first extension 13 to limit the first socket 10.

The insertion direction α in the present invention is a direction in which the fixing portion is directed to the first 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.

In an embodiment of the present invention, the embedded elements include a first embedded element 210, and the first embedded element 210 is connected to the first fixing portion 11 of the first inserting stage 10.

So set up, the embedded component that is connected with first platform 10 is the embedded component that the internal face of above-mentioned changeover portion 203 is parallel with connection face 204, and the embedded component that is connected with first base 20 can be foretell embedded component, also can be the embedded component of current model, can select according to actual need to reduce cost. Moreover, the utility model provides a quick docking mechanism 200 installs simply, inserts first grafting portion 12 of first platform 10 into first base 20 after, fin 22 can elasticity shrink and enclose the extension of first base 20, and the tip butt of fin 22 is in the step face of first platform 10 to the butt face between the tip of fin 22 and the first step face 14 of first platform 10 is similar to the annular, and the butt area is big, can guarantee the joint strength between two pre-buried components, especially has great promotion to tensile strength; the fins 22 not only can enclose the first extension 13 of the inserting table, but also can limit the first extension 13, and prevent the first extension 13 from shaking in the radial direction. Furthermore, the utility model provides a quick docking mechanism 200 processing technology is simple, low cost, and it is extensive to be suitable for the scene.

The utility model discloses an among the quick docking mechanism 200, pre-buried component still includes second pre-buried component 220, and second pre-buried component 220 is connected in the second fixed part 21 of first base 20.

So set up, the embedded component that is connected with first base 20 is foretell embedded component, and the embedded component that is connected with first platform 10 can be the embedded component that the internal wall face of above-mentioned changeover portion 203 is parallel with connection face 204, also can be the embedded component of current model, can select according to actual need to reduce cost.

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 a first inserting platform 10 on a first embedded element 210 and a first base 20 on a 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 first inserting platform 10 is inserted into the first 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 is not required to be applied), and when the first inserting part 12 of the first inserting platform 10 penetrates through the first base 20, sound is generated, and the installation completion can be judged. 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.

Referring to fig. 6 to 9, fig. 6 is a cross-sectional view of a quick docking mechanism 200 according to a second embodiment of the present invention; FIG. 7 is a schematic diagram of the structure of the quick docking assembly 100 of the quick docking mechanism 200 shown in FIG. 6; FIG. 8 is a schematic structural view of the buckle 50 shown in FIG. 6; fig. 9 is a schematic view of the quick docking mechanism 200 shown in fig. 6 in a use state.

As shown in fig. 6 to 9, in another embodiment of the present invention, the quick docking assembly 100 includes a second socket 30, a second base 40 and a ring buckle 50, the second socket 30 includes a third fixing portion 31 and a second inserting portion 32 which are oppositely disposed, and the second inserting portion 32 is provided with a first groove 33; the second base 40 comprises a first end surface 41 and a second end surface 42 which are oppositely arranged; the ring buckle 50 has an opening 51 and can be elastically contracted, and the ring buckle 50 is sleeved on the second insert platform 30 and accommodated in the first groove 33; the buckle 50 can be inserted into the second base 40 along with the second inserting portion 32 of the second inserting stage 30 along the inserting direction, and the buckle 50 can support the second end face 42 of the second base 40 through elastic expansion and limit the reverse movement of the second inserting stage 30 along the inserting direction;

the embedded elements include a third embedded element 230, and the third embedded element 230 is connected to the third fixing portion 31 of the second inserting stage 30.

So set up, the embedded component that is connected with second socket 30 is the embedded component that the internal face of above-mentioned changeover portion 203 is parallel with connection face 204, and the embedded component that is connected with second base 40 can be foretell embedded component, also can be the embedded component of current model, can select according to actual need to reduce cost. And, the utility model provides a quick docking mechanism 200 inserts second inserting part 32 of second jack 30 behind the second base 40, and buckle 50 can pop out first recess 33 and support and hold on the second terminal surface 42 of second base 40 through elasticity extension part, and the butt surface between buckle 50 and the second terminal surface 42 is similar to the annular, and the butt area is big, can guarantee the joint strength between two pre-buried components, especially has great promotion to tensile strength. Furthermore, the utility model provides a quick docking mechanism 200 processing technology is simple, low cost, and it is extensive to be suitable for the scene.

In one embodiment of the present invention, the embedded elements include a fourth embedded element 240, and the fourth embedded element 240 is connected to the second base 40.

So set up, the embedded component that is connected with second base 40 is foretell embedded component, and the embedded component that is connected with second socket 30 can be the embedded component that the internal wall face of above-mentioned changeover portion 203 is parallel with connection face 204, also can be the embedded component of current model, can select according to actual need to reduce cost.

In this embodiment, the use process of the quick docking assembly 100 is as follows: since the buckle 50 has the opening 51, the buckle 50 can be elastically contracted and accommodated in the first groove 33. At this time, the ring buckle 50 extends into the second base 40 along with the second inserting portion 32, and the ring buckle 50 is always accommodated in the first groove 33 in the inserting process because the inner wall of the second base 40 gives the ring buckle 50 pressure towards the axial direction; after the buckle 50 passes through the second base 40 along with the second inserting portion 32, the buckle 50 partially pops out of the first groove 33 under the elastic expansion of the buckle 50, and the popped part abuts against the second end surface 42 of the second base 40 (i.e. the lower end surface of the base in the direction shown in the figure), so that the buckle 50 is clamped between the second inserting stage 30 and the second base 40, thereby completing the connection between the third embedded element 230 and the fourth embedded element 240.

In one embodiment of the present invention, the inner wall surfaces of the connecting surface 204 and the transition section 203 are both flat surfaces.

So set up, the processing of pre-buried component of being convenient for. The connecting surface 204 can be obtained during molding, or can be obtained by chamfering the end surface of the embedded element close to one side of the limiting section 202; the inner wall surface of the transition section 203 is obtained during molding, or can be obtained by drilling or boring with a drill or a boring cutter, so that the obtained boundary of the inner wall surface of the transition section 203 and the connecting surface 204 is low in cost.

In an embodiment of the present invention, the inner wall surfaces of the connecting surface 204 and the transition section 203 are both arc surfaces.

By the arrangement, the connecting surface 204 of the transition section 203 is connected with the limiting section 202 and the fixing section 201 in a smoother mode, so that the embedded elements can be further prevented from being damaged by stress concentration; in addition, the smoothly-transitioned connection surface 204 and the inner wall surface of the transition section 203 can allow the reinforcing steel bar 310 to obtain larger axial displacement relative to the embedded element in the process that the reinforcing steel bar 310 supports the limiting section 202, so that the reinforcing steel bar 310 is prevented from being broken or the embedded element limiting section 202 is prevented from being broken and losing efficacy.

In an embodiment of the present invention, the embedded element is further provided with a protruding ring-shaped protrusion 211 on the outer peripheral wall far away from the end of the connection surface 204.

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 pre-buried component from damaging.

In one embodiment, the outer diameter of the annular protrusion 211 is gradually reduced from the end of the embedded element 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, and the third embedded element 230 and the fourth embedded element 240 may be of the same type or different types, and may be selected according to a working condition.

Referring to fig. 10, fig. 10 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 piles 300 are connected by a method in which, when two precast piles 300 are connected, the reinforcing bars 310 connected to the first embedded elements 210 are opposite to the reinforcing bars 310 connected to the second embedded elements 220 (or the reinforcing bars 310 connected to the third embedded elements 230 are opposite to the reinforcing bars 310 connected to the fourth embedded elements 240), and the two precast piles are connected by using the quick coupling assembly 100.

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 and the embedded elements are pre-embedded in the concrete 320.

It is understood that in other embodiments, the embedded elements may be later connected to the reinforcing bars 310. The operation steps are that the concrete at the end of the precast pile 300 is chiseled to expose the reinforcing bars 310, and then the embedded elements are connected to the ends of the reinforcing bars 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, 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 mechanism (200) is characterized by comprising an embedded element and a quick butt joint assembly (100) connected with the embedded element; the embedded element comprises a fixed section (201) and a limiting section (202) connected with the fixed section (201), and the fixed section (201) is used for connecting the quick butt joint assembly (100);

the internal diameter of canned paragraph (201) is greater than the internal diameter of spacing section (202), the inner wall of canned paragraph (201) with form changeover portion (203) between the inner wall of spacing section (202), the periphery wall of embedded element with embedded element is close to the chamfer sets up and forms between the terminal surface of spacing section (202) and is connected face (204), the internal face of changeover portion (203) with it is parallel to be connected face (204).

2. The quick docking mechanism (200) according to claim 1, wherein an angle between an inner wall surface of the limiting section (202) and an inner wall surface of the fixing section (201) is 100 ° to 170 °.

3. The quick docking mechanism (200) according to claim 1, wherein the quick docking assembly (100) comprises a first docking station (10) and a first base (20), the first docking station (10) comprises a first fixing portion (11), a first plugging portion (12) and a first extending portion (13) located between the first fixing portion (11) and the first plugging portion (12), the first plugging portion (12) is protruded on the first extending portion (13) and a first step surface (14) is formed between the first plugging portion (12) and the first extending portion (13); the first 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 manner; the first inserting table (10) can penetrate through openings (51) formed by enclosing of the fins (22) through elastic expansion of the fins (22), the fins (22) can elastically contract and enclose the first extending portions (13), and the end faces of the fins (22) and the first step faces (14) of the first inserting table (10) are oppositely arranged;

the embedded elements comprise first embedded elements (210), and the first embedded elements (210) are connected to the first fixing portion (11) of the first inserting table (10).

4. The quick docking mechanism (200) according to claim 1, wherein the quick docking assembly (100) comprises a first docking station (10) and a first base (20), the first docking station (10) comprises a first fixing portion (11), a first plugging portion (12) and a first extending portion (13) located between the first fixing portion (11) and the first plugging portion (12), the first plugging portion (12) is protruded on the first extending portion (13) and a first step surface (14) is formed between the first plugging portion (12) and the first extending portion (13); the first 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 manner; the first inserting table (10) can penetrate through openings (51) formed by enclosing of the fins (22) through elastic expansion of the fins (22), the fins (22) can elastically contract and enclose the first extending portions (13), and the end faces of the fins (22) and the first step faces (14) of the first inserting table (10) are oppositely arranged;

the embedded element further comprises a second embedded element (220), and the second embedded element (220) is connected to the second fixing portion (21) of the first base (20).

5. The quick docking mechanism (200) according to claim 1, wherein the quick docking assembly (100) comprises a second socket (30), a second base (40) and a buckle (50), the second socket (30) comprises a third fixing portion (31) and a second plugging portion (32) which are oppositely arranged, and a first groove (33) is formed on the second plugging portion (32); the second base (40) comprises a first end face (41) and a second end face (42) which are oppositely arranged; the ring buckle (50) is provided with an opening (51) and can be elastically contracted, and the second inserting table (30) is sleeved with the ring buckle (50) and contained in the first groove (33); the buckle (50) can be inserted into the second base (40) along with the second inserting part (32) of the second inserting platform (30) along the inserting direction, and the buckle (50) can abut against the second end face (42) of the second base (40) through elastic expansion and limit the reverse movement of the second inserting platform (30) along the inserting direction;

the embedded elements comprise third embedded elements (230), and the third embedded elements (230) are connected to the third fixing parts (31) of the second inserting table (30).

6. The quick docking mechanism (200) according to claim 1, wherein the quick docking assembly (100) comprises a second socket (30), a second base (40) and a buckle (50), the second socket (30) comprises a third fixing portion (31) and a second plugging portion (32) which are oppositely arranged, and a first groove (33) is formed on the second plugging portion (32); the second base (40) comprises a first end face (41) and a second end face (42) which are oppositely arranged; the ring buckle (50) is provided with an opening (51) and can be elastically contracted, and the second inserting table (30) is sleeved with the ring buckle (50) and contained in the first groove (33); the buckle (50) can be inserted into the second base (40) along with the second inserting part (32) of the second inserting platform (30) along the inserting direction, and the buckle (50) can abut against the second end face (42) of the second base (40) through elastic expansion and limit the reverse movement of the second inserting platform (30) along the inserting direction;

the embedded elements comprise a fourth embedded element (240), and the fourth embedded element (240) is connected to the second base (40).

7. The quick docking mechanism (200) as claimed in claim 1, wherein the embedded element further has a protruding ring (211) on the outer peripheral wall of the end far away from the connection surface (204).

8. The quick docking mechanism (200) as recited in claim 1, characterized in that the connecting surface (204) and the inner wall surface of the transition section (203) are both planar.

9. The quick docking mechanism (200) as recited in claim 1, characterized in that the connecting surface (204) and the inner wall surface of the transition section (203) are both cambered surfaces.

10. The quick docking mechanism (200) as claimed in claim 1, wherein the outer peripheral wall of the embedded element at the end relatively far away from the fixing section (201) is a non-circular polygon.

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