CN214033697U - Connection structure and building structure - Google Patents

Abstract

The utility model relates to a connection structure and building structure. The connecting structure comprises a first sleeve, a second sleeve, a plugging table and a base, wherein the plugging table is fixedly arranged on the first sleeve, a first clamping tooth group is arranged on the outer peripheral wall of the plugging table, and the first clamping tooth group comprises a plurality of first clamping teeth which are arranged along the axial direction; the base comprises a fixing part and a plurality of fins connected with the fixing part, the fixing part is fixedly connected with the second sleeve, and the fins are arranged in a surrounding manner; the inserting table can penetrate through the opening formed by enclosing of the fins through elastic expansion of the fins, the fins can elastically contract and enclose the inserting table, and one of the first clamping teeth abuts against the end portion of the fins. The utility model provides a connection structure has a plurality of joint location department for other connection structure, and is lower to the requirement of raw materials material, and the cost of manufacture is lower to the assembly is simple, is convenient for use on the workplace.

Description

Connection structure and building structure

Technical Field

The utility model relates to a building field especially relates to a connection structure and building structure.

Background

When two prefabricated building piles are connected, a plurality of connecting structures are usually required to be matched for use. The traditional connecting structure usually has only one position which can be clamped and positioned, however, if only one position of the connecting structure can be clamped and positioned, the plurality of connecting structures can not be exactly clamped and positioned; in addition, traditional connection structure is in the use, if fracture appears in joint department, the connection reliability between the prefabricated building pile can't be guaranteed.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a connection structure and a building structure.

The utility model provides a connecting structure, which is applied to a prefabricated building pile and comprises a first sleeve, a second sleeve, a slotting table and a base, wherein the slotting table is fixedly arranged on the first sleeve, a first latch group is arranged on the peripheral wall of the slotting table, and the first latch group comprises a plurality of first latches which are arranged along the axial direction; the base comprises a fixing part and a plurality of fins connected to the fixing part, the fixing part is fixedly connected to the second sleeve, and the fins are arranged in a surrounding manner; the inserting table can penetrate through openings formed by surrounding of the fins through elastic expansion of the fins, the fins can elastically contract and surround the inserting table, and one of the first clamping teeth abuts against the end portions of the fins.

The utility model provides a connection structure through inserting the first latch group on the platform, has a plurality of joints departments that can mutually support with the fin. When a plurality of connection structure use together, can guarantee through a plurality of first latches on inserting the platform that every connection structure can both the joint location to when the first latch fracture of a certain department, other first latches still can play the effect that the joint was fixed a position, have greatly improved the connection reliability between the prefabricated building pile. Furthermore, the utility model provides a connection structure has a plurality of joint location department for other connection structure, and is lower to the requirement of raw materials material, and the cost of manufacture is lower to the assembly is simple, is convenient for use on the factory.

In an embodiment of the present invention, a first guiding portion is disposed on the first latch, the first guiding portion is disposed in an inclined manner on a radial plane of the insertion table, and the first guiding portion can guide the first latch to penetrate through the fin.

So set up, through setting up first guide part, can increase the smoothness nature when inserting the platform and inserting the base.

In an embodiment of the present invention, the first guide portion is an inclined surface.

So set up, first guide part processing is simple and convenient, low in production cost to the guide effect is better.

In an embodiment of the present invention, a first stopping portion is disposed on a side of the first latch facing away from the first guiding portion, and the first stopping portion can stop the insertion table from being pulled out from the base.

So set up, can avoid inserting the platform and deviate from the locating part, guaranteed connection structure's use intensity.

In an embodiment of the present invention, the first stopping portion is an annular surface parallel to the radial plane of the inserting table, the end surface of the fin relatively far away from the fixing portion is a plane parallel to the radial plane of the inserting table, and the first stopping portion can be attached to and in surface contact with one end of the fin relatively far away from the fixing portion.

So set up, the processing of the first backstop face of being convenient for and fin terminal surface has reduced the processing cost to backstop effect is better.

In an embodiment of the present invention, when the inserting table moves in a direction opposite to the inserting direction, the first stopping portion and the fin are relatively far away from the end surface of the fixing portion, and the end surface of the fixing portion is engaged with each other, so that the fin has a tendency to fold.

So set up, when inserting a reverse motion, first backstop portion is mutually supported with the fin terminal surface, can make a plurality of fins fold, can further prevent to insert a platform and deviate from the opening, has improved connection structure's stability in use.

In an embodiment of the present invention, an end of the first stopping portion and/or the fin relatively far away from the fixing portion is an inclined surface.

So set up, first backstop portion and/or the processing of fin terminal surface is simple and convenient, low in production cost to backstop effect is better.

In an embodiment of the present invention, the inner wall of the fixing portion is provided with a mounting hole, and the mounting hole is a hexagonal mounting hole, an octagonal mounting hole, or a dodecagonal mounting hole.

So set up, can cooperate outside mounting tool mounting base through the mounting hole, shorten the mounting base and use long time.

In an embodiment of the present invention, the one end of the inserting table relatively far away from the first sleeve is provided with a guiding inclined plane.

So set up, can be further be convenient for insert in the platform gets into the base, especially when a plurality of connection structure cooperation uses, the construction error can greatly be remedied in the setting on direction inclined plane to guarantee that every connection structure can both connect smoothly.

The utility model also provides a building structure, including two piece at least prefabricated building piles and connection structure, connection structure is foretell connection structure, first sleeve with the second sleeve sets firmly respectively in two prefabricated building piles, two prefabricated building pile passes through connection structure connects.

The utility model provides an among the building structure, the connected mode between two prefabricated building piles is simple to connect the reliability height, tensile strength is high.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of a connection structure according to the present invention;

FIG. 2 is a schematic structural view of the second sleeve and the reinforcing bars shown in FIG. 1;

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

FIG. 4 is an alternative construction of the docking station shown in FIG. 3;

FIG. 5 is another alternative construction of the docking station shown in FIG. 3;

FIG. 6 is a schematic structural view of the elastic sleeve shown in FIG. 1;

FIG. 7 is a schematic view of the elastic sleeve of FIG. 6 at another angle;

FIG. 8 is an alternative construction of the elastomeric sleeve of FIG. 7;

FIG. 9 is another alternative construction of the elastomeric sleeve shown in FIG. 7;

FIG. 10 is another alternative construction of the elastomeric sleeve shown in FIG. 7;

FIG. 11 is another alternative construction of the elastomeric sleeve shown in FIG. 7;

fig. 12 is a schematic structural diagram of the limiting element shown in fig. 1;

FIG. 13 is a cross-sectional view of the limiter of FIG. 12 at another angle;

FIG. 14 is an alternative construction of the limiter of FIG. 13;

FIG. 15 is another alternative construction of the stop shown in FIG. 13;

FIG. 16 is another alternative construction of the stop member of FIG. 13;

FIG. 17 is another alternative construction of the stop shown in FIG. 13;

FIG. 18 is a schematic structural view of the tensile member of FIG. 1;

fig. 19 is an alternative construction of the tensile member of fig. 18;

FIG. 20 is an enlarged view of a portion A of FIG. 1;

FIG. 21 is an alternative configuration of the connection shown in FIG. 20;

FIG. 22 is another alternative to the attachment structure shown in FIG. 20;

FIG. 23 is a schematic structural view of the connection structure after glue filling;

FIG. 24 is a partial enlarged view of portion B of FIG. 23;

FIG. 25 is a schematic structural view of a second embodiment of the connecting structure of the present invention;

FIG. 26 is a schematic view of the structure of the docking station of FIG. 25;

FIG. 27 is a schematic view of the base of FIG. 25;

FIG. 28 is a cross-sectional view of the base of FIG. 27;

fig. 29 is a schematic structural view of a third embodiment of the connection structure of the present invention;

FIG. 30 is an assembled view of the docking station and base of FIG. 29;

FIG. 31 is a schematic view of the structure of the docking station of FIG. 29;

FIG. 32 is an alternative construction of the insert table of FIG. 31;

fig. 33 is a schematic structural view of the base shown in fig. 29.

100. A connecting structure; 10. a first sleeve; 20. a second sleeve; 21. a stop table; 30. inserting a platform; 31. a first set of teeth; 311. a first latch; 3111. a first guide portion; 3112. a first stopper portion; 312. a spiral latch; 32. a guide slope; 33. a first stopper projection; 40. an elastic sleeve; 41. an opening; 42. a spring back portion; 43. a first diversion inclined plane; 50. a limiting member; 51. a second set of teeth; 511. a second latch; 5111. a second guide portion; 5112. a second stopper portion; 52. a split monomer; 521. a containing groove; 53. a connecting member; 531. presetting a fracture track; 54. a first tightening part; 55. a second guide portion; 56. a second diversion inclined plane; 60. a tensile member; 61. a second tightening part; 62. a first guide portion; 63. a boss; 70. a base; 71. a fixed part; 711. a second stop lug; 712. mounting holes; 72. a fin; 80. curing glue; 81. a first glue filling channel; 82. a second glue filling channel; 83. a third glue filling channel; 210. reinforcing steel bars; 211. heading.

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.

It will be understood that when an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the 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, fig. 1 is a schematic structural diagram of a first embodiment of a connection structure 100 according to the present invention.

The utility model provides a connection structure 100, it is used for connecting two objects. In this embodiment, the connecting structure 100 is used to connect two prefabricated building piles. It is understood that in other embodiments, the connecting structure 100 may also be applied to connect building structures of other shapes, and is not limited herein.

When two prefabricated construction piles are connected, it is generally required that a plurality of connection structures 100 are used in cooperation. The traditional connecting structure usually has only one position which can be clamped and positioned, however, if only one position of the connecting structure can be clamped and positioned, the plurality of connecting structures can not be exactly clamped and positioned; in addition, traditional connection structure is in the use, if fracture appears in joint department, the connection reliability between the prefabricated building pile can't be guaranteed.

Based on this, the first embodiment of the present invention provides a connection structure 100, which includes a first sleeve 10, a second sleeve 20, an insertion platform 30, an elastic sleeve 40, a limiting member 50 and a tensile member 60, wherein the insertion platform 30 is fixedly installed on the first sleeve 10; the elastic sleeve 40 is sleeved with the limiting piece 50, the elastic sleeve 40 and the limiting piece 50 are accommodated in the second sleeve 20, the tensile piece 60 is fixedly connected to the second sleeve 20, and the tensile piece 60 can stop the limiting piece 50 from being separated from the second sleeve 20; the elastic sleeve 40 can be elastically expanded so that the insert stand 30 is inserted into the stopper 50; the socket 30 and the stopper 50 can be engaged with each other by elastic contraction of the elastic sleeve 40.

Further, in a specific embodiment, a first set of latch teeth 31 is disposed on an outer peripheral wall of the socket 30, and a second set of latch teeth 51, which is engaged with the first set of latch teeth 31, is disposed on an inner peripheral wall of the limiting member 50; and the first latch tooth group 31 and the second latch tooth group 51 are engaged with each other under elastic contraction of the elastic sleeve 40.

The utility model provides a connection structure 100, through mutually supporting with second latch group 51 on the locating part 50 first latch group 31 on the platform 30, the multistage limit structure who has a plurality of joint departments has been formed, when a plurality of connection structure 100 use together, can guarantee through multipolar limit structure that every connection structure 100 can both the joint location, and when the latch of a certain department is cracked, other latches in the multipolar limit structure still can play the effect of joint location, the connection reliability between the prefabricated building pile has greatly been improved. Furthermore, the utility model provides a connection structure 100 is for other connection structure that have a plurality of joint location department, and is lower to the requirement of raw materials material, and the cost of manufacture is lower to the assembly is simple, is convenient for use on the site.

It is understood that in some other embodiments, only the first latch tooth set 31 may be disposed on the platform 30, and the second latch tooth set 51 is not necessarily disposed on the limiting member 50; alternatively, the second latch set 51 may be provided only on the stopper 50, and the first latch set 31 does not need to be provided on the stage 30, so that the connecting structure 100 can have a plurality of latch positioning portions, and the flexibility of use of the connecting structure 100 can be increased.

The first sleeve 10 is approximately in a hollow cylindrical shape, one end of the first sleeve 10 is connected to the steel bars 210 in the prefabricated building pile, an upset head 211 is arranged on the steel bars 210, and the first sleeve 10 is connected with the steel bars 210 in the prefabricated building pile through the upset head 211; the inner wall of the other end of the first sleeve 10 is provided with threads for being fixedly connected with the insert table 30 through threads. It will be appreciated that the first sleeve 10 may also be of other shapes; the first sleeve 10 and the insert table 30 may also be fixedly connected by other methods, such as welding, riveting, and fastening.

Referring to fig. 2, fig. 2 is a schematic structural diagram of the second sleeve 20 and the reinforcing bars 210 shown in fig. 1.

The second sleeve 20 is approximately in a hollow cylindrical shape, one end of the second sleeve is connected to the steel bar 210 in the prefabricated building pile, an upset head 211 is arranged on the steel bar 210, and the second sleeve 20 is connected with the steel bar 210 in the prefabricated building pile through the upset head 211; the elastic sleeve 40, the limiting member 50 and the tensile member 60 are all accommodated in the second sleeve 20, wherein the inner wall of the second sleeve 20 opposite to the end far from the upset 211 is provided with threads for being in threaded connection with the tensile member 60. It is understood that the second sleeve 20 may have other shapes, and the second sleeve 20 and the tensile member 60 may be fixedly connected by other methods, such as welding, riveting, and fastening.

In a specific embodiment, a stop table 21 is disposed in the second sleeve 20, and the stop table 21 can stop the elastic sleeve 40 and the end of the position-limiting member 50 relatively far away from the tensile member 60 from coming out of the second sleeve 20. With such an arrangement, the elastic sleeve 40 and the limiting member 50 can be stopped and positioned by the stop table 21, which is convenient for installing the elastic sleeve 40 and the limiting member 50.

Referring to fig. 3, fig. 3 is a schematic structural diagram of the insert stage 30 shown in fig. 1.

The insertion platform 30 is substantially cylindrical, a thread capable of being fixedly connected with the first sleeve 10 is arranged on the outer peripheral wall of one end of the insertion platform 30, and the insertion platform 30 can be inserted into the limiting piece 50 along the insertion direction alpha to complete butt joint; the socket 30 is also provided with a structure that can be engaged with the stopper 50. It is understood that the platform 30 may have other shapes, and is not limited thereto.

In a particular embodiment, the end of the platform 30 opposite from the first sleeve 10 is provided with a guide ramp 32. With the arrangement, the insertion platform 30 can conveniently enter the limiting part 50, and especially when a plurality of connecting structures 100 are matched for use, construction errors can be greatly compensated by the arrangement of the guide inclined planes 32, so that each connecting structure 100 can be smoothly connected. It is understood that in other embodiments, other guiding structures, such as guiding arcs, etc., may be adopted, and are not limited herein.

In a specific embodiment, the peripheral wall of the platform 30 is provided with a first stop projection 33, and the first stop projection 33 can limit the depth of the platform 30 inserted into the base 70. So set up, be convenient for constructor to judge whether inserting platform 30 has installed in place.

Specifically, in the present embodiment, the first stop protrusion 33 is annular. In other embodiments, the first stop block may have other shapes, such as a bump, etc., as long as it can function as a stop.

Referring to fig. 4 to 5, fig. 4 is an alternative structure of the platform 30 shown in fig. 3; fig. 5 is another alternative construction of the insert station 30 shown in fig. 3.

In a specific embodiment, the structure of the platform 30 capable of being engaged with the limiting member 50 is a first latch set 31, and the first latch set 31 includes a plurality of first latches 311; the limiting member 50 is provided with a second latch group 51, the second latch group 51 includes a plurality of second latches 511, and the first latch 311 and/or the second latch 511 may be annular latch structures arranged along the axial direction, or one of the first latch and the second latch may be a spiral latch 312, and the other is an annular latch, as long as the two latches can be mutually latched.

Preferably, the number of the first latch teeth 311 is greater than or equal to the number of the second latch teeth 511. With such an arrangement, the matching between the plug platform 30 and the limiting member 50 can be more flexible, and particularly, when the plurality of connecting structures 100 are butted together, the plug platform 30 can be ensured to be clamped and fixed. It can be understood that the number of the first latch teeth 311 may also be smaller than the number of the second latch teeth 511 according to actual requirements.

Referring to fig. 6 to 7, fig. 6 is a schematic structural view of the elastic sleeve 40 shown in fig. 1; fig. 7 is a schematic view of the elastic sleeve 40 shown in fig. 6 at another angle.

The elastic sleeve 40 is substantially in the shape of a hollow cylinder, the elastic sleeve 40 has a certain elastic structure, the elastic member is accommodated in the second sleeve 20, and a certain gap is formed between the elastic member and the inner wall of the second sleeve 20 in an unstressed state, so as to ensure that the elastic member can realize elastic expansion. The elastic member is sleeved with the limiting member 50, and when the plug-in stand 30 is inserted into the limiting member 50, the elastic member can be elastically expanded so that the plug-in stand 30 can be smoothly inserted into the limiting member 50; after the docking between the platform 30 and the limiting member 50 is completed, the elastic member can elastically contract and make the limiting member 50 close the platform 30, so as to ensure the connection strength between the platform 30 and the limiting member 50. It is understood that the elastic sleeve 40 may have other shapes, and is not limited thereto.

In a specific embodiment, the length of the elastic sleeve 40 in the axial direction is greater than or equal to the length of the stopper 50 in the axial direction. With such an arrangement, the elastic sleeve 40 can cover the whole limiting member 50 when elastically contracting, so that the force applied to the limiting member 50 is uniform, and the first latch set 31 and the second latch set 51 are engaged more tightly.

Referring to fig. 8-11, fig. 8-11 illustrate various alternative structures of the elastic sleeve 40 shown in fig. 7.

In a specific embodiment, the elastic sleeve 40 has an opening 41, and the opening 41 extends in the axial direction of the elastic sleeve 40 and penetrates both ends of the elastic sleeve 40. With such an arrangement, when the platform 30 is inserted into the limiting member 50, the elastic sleeve 40 is conveniently expanded, so that the platform 30 can be smoothly inserted into the limiting member 50.

It will be appreciated that the elastic sleeve 40 may be elastic in other ways, such as providing a resilient structure, in which case the elastic sleeve 40 may also be provided in the form of an annular cylinder. So set up, the elastic sleeve 40 of ring tube-shape is convenient for machine-shaping, and mechanical strength is higher, is convenient for transportation and installation.

Specifically, the opening 41 is linear, diagonal, curved, or wavy. It is understood that the opening 41 may have other common shapes, which are not listed here.

In one specific embodiment, there are a plurality of elastic sleeves 40, the elastic sleeves 40 are stacked along the axial direction, and each elastic sleeve 40 is sleeved with a limiting member 50. So set up, elastic sleeve 40 is more nimble when setting up, can select the number of elastic sleeve 40 according to actual need to can reduce elastic sleeve 40's manufacturing cost.

In a specific embodiment, the elastic sleeve 40 is provided with a resilient portion 42 on the outer peripheral wall, and the retaining member 50 is folded under the resilient action of the resilient portion 42 to engage the first latch set 31 with the second latch set 51. So set up, it is lower to the requirement of raw materials material, and the cost of manufacture is lower to the assembly is simple, is convenient for use on the site. It is understood that the arrangement of the first sleeve 10, the second sleeve 20 and the tensile member 60 in the connection structure 100 is not necessary.

Further, the resilient portions 42 have a corrugated structure or a uniformly arranged convex dot structure. So set up, be convenient for rebound portion 42's machine-shaping to have better resilience effect. It is understood that in other embodiments, the resilient portion 42 may have other shapes, so long as it has a resilient effect.

In a particular embodiment, the resilient portion 42 is integrally formed with the elastomeric sleeve 40. So set up, elastic sleeve 40's mechanical strength is high, and is convenient for assemble. It is understood that in other embodiments, the resilient portion 42 may be formed separately from the elastic sleeve 40 and then fixedly connected thereto. For example, the resilient portion 42 may be made of rubber or plastic, and the resilient portion 42 and the elastic sleeve 40 may be fixedly connected by adhesion or the like.

Of course, the resilient portion 42 and the elastic sleeve 40 may be made of metal. The raw material cost is lower, the processing technology is mature, and the mechanical strength of the connecting structure 100 is high.

In a specific embodiment, the resilient portion 42 is plural, and the plural resilient portions 42 are uniformly arranged along the axial direction of the elastic sleeve 40. So set up, can enough reduce the processing cost, can guarantee again that rebound portion 42 can have better resilience.

Further, at least two resilient portions 42 are respectively located at two opposite ends of the elastic sleeve 40 facing away from each other. So set up, can guarantee that two tip that elastic sleeve 40 deviates from relatively also have better resilience performance to further guarantee elastic sleeve 40's resilience performance.

Referring to fig. 12 to 13, fig. 12 is a schematic structural view of the position-limiting element 50 shown in fig. 1; fig. 13 is a cross-sectional view of the retaining member 50 of fig. 12 at another angle.

The limiting member 50 is substantially in the shape of a hollow cylinder, and is used for abutting and fixing the socket 30, in this embodiment, in order to reduce the production cost, the limiting member 50 is in a non-elastic structure, and the limiting member 50 is enclosed by the elastic sleeve 40 and fixes the socket 30. It is understood that, in other embodiments, the limiting member 50 may also be a structure having elasticity, and is not limited herein. It is understood that the limiting member 50 may have other shapes, and is not limited thereto.

In a specific embodiment, the limiting member 50 includes a plurality of split single bodies 52, the plurality of split single bodies 52 surround the inserting stage 30, and a gap is formed between the plurality of split single bodies 52; the elastic sleeve 40 can make the plurality of split monomers 52 close to each other by elastic contraction. So set up, the simple structure of locating part 50 is convenient for produce the preparation.

Further, each of the split cells 52 is identical in size and shape. With such an arrangement, the manufacturing cost and the transportation cost of the limiting member 50 can be greatly reduced. It is to be understood that in other embodiments, the split unit 52 may have a different shape as long as the stopper 50 can be formed to have the function of engaging with the socket 30.

Referring to fig. 14 to 17, fig. 14 to 17 illustrate various alternative structures of the position limiting member 50 shown in fig. 13.

In a specific embodiment, the limiting member 50 further includes a connecting member 53, and at least two adjacent split single bodies 52 are connected by the connecting member 53; the socket 30 can break the connecting member 53 or deform the connecting member 53 when the stopper 50 is inserted. So set up, can interconnect between a plurality of split monomers 52, the installation of the locating part 50 of being convenient for to connecting piece 53 can also prevent split monomer 52 before the atress offset. It is understood that the arrangement of the first sleeve 10, the second sleeve 20 and the tensile member 60 in the connection structure 100 is not necessary.

In a specific embodiment, the connecting member 53 is located at an end of the single split 52 relatively close to the end of the insertion direction α of the insert table 30, so as to facilitate the machining of the connecting member 53. It should be noted that an end relatively close to the end of the insertion direction α of the insert table 30 is an end relatively far from the first sleeve 10, and correspondingly, an end relatively close to the start of the insertion direction α of the insert table 30 is an end relatively close to the first sleeve 10.

When the insert table 30 is inserted into the limiting member 50, the split single body 52 is deformed, so that the first latch set 31 and the second latch set 51 at an end relatively close to the starting point of the insertion direction are not firmly engaged. Depending on the position of the connecting element 53, the split single body 52 may have different movement trends. When the limiting member 50 is the limiting member 50 shown in fig. 14, the connecting member 53 is located at one end of the split single body 52 relatively close to the end point of the insertion direction α of the platform 30, and at this time, in order to improve the problem that the first latch group 31 and the second latch group 51 are not firmly engaged, an inner diameter of a shape enclosed by one end of the split single body 52 relatively close to the start point of the insertion direction of the platform 30 is smaller than an inner diameter of a shape enclosed by one end of the split single body 52 relatively close to the end point of the insertion direction of the platform 30. So set up, enclose the internal diameter size of establishing the shape through changing split monomer 52 both ends, compensatied the meshing error that split monomer 52 warp and bring, guaranteed that the platform 30 is inserting behind locating part 50, still has better meshing reliability between first latch group 31 and the second latch group 51.

Further, the inner wall of the single split body 52 is disposed obliquely with respect to the axis of the stopper 50. With such an arrangement, the structure of the limiting member 50 is simple, the processing cost is low, and it can be better ensured that the first latch set 31 and the second latch set 51 still have good meshing reliability after the limiting member 50 is inserted into the platform 30. It is understood that in other embodiments, the single split body 52 may be disposed in an arc shape, which is not limited herein.

It is to be understood that the shape of the outer wall of the split unit 52 is not limited thereto. The thickness of the single split body 52 may be constant or may vary, and therefore, the outer wall of the single split body 52 may be disposed obliquely with respect to the axis of the limiting member 50 or disposed parallel to the axis of the limiting member 50.

Further, in the state where the insert stand 30 is completely inserted into the stopper 50, the extending direction of the inner wall of the split single body 52 is parallel to the axial direction of the stopper 50. With such an arrangement, the substantially cylindrical socket 30 can be better fitted, and it is further ensured that the first latch set 31 and the second latch set 51 still have good engagement reliability even after the socket 30 is inserted into the stopper 50. It is understood that in other embodiments, each of the segmented units 52 may have the same thickness or may have variations to achieve different shapes of the inner and outer walls.

In a specific embodiment, the second latch tooth set 51 is disposed through both ends of the split single body 52. So set up, the number of teeth of second latch set 51 is more to can guarantee better linkage effect. It is understood that in other embodiments, the second latch tooth group 51 may be provided only on a part of the split single body 52, as long as the engaging effect can be achieved.

In one particular embodiment, the connector 53 is integrally formed with the single split 52. By such an arrangement, the connecting structure 100 can be easily machined and formed, and the machining cost is low. It is understood that, in other embodiments, the connecting member 53 and the single split body 52 may be formed separately, and may be selected according to actual working conditions, which is not limited herein.

In a specific embodiment, the connecting member 53 and the single split piece 52 are both made of metal. By such arrangement, the raw material cost is low, the processing technology is mature, and the mechanical strength of the connecting structure 100 is high. It is understood that, in other embodiments, the connecting member 53 and the single split piece 52 may be made of different materials, which is not limited herein.

In a specific embodiment, the height of the connecting member 53 in the axial direction of the limiting member 50 is 0.1cm to 5 cm. With the arrangement, a better connecting effect can be achieved, and too much production cost cannot be increased.

Further preferably, the height of the connecting member 53 in the axial direction of the stopper 50 is 0.2cm to 1 cm.

In one embodiment, the platform 30 can break the connecting member 53 or deform the connecting member 53 when the limiting member 50 is inserted, so that the platform 30 can enter the limiting member 50 more easily.

It is understood that, in other embodiments, when the insertion platform 30 is inserted into the limiting member 50, the connecting member 53 may not be deformed or damaged, for example, the limiting member 50 shown in fig. 14, and the connecting member 53 is disposed at an end of the split single body 52 relatively close to the insertion direction end of the insertion platform 30, so as to avoid the connecting member 53 being damaged, thereby ensuring the mechanical strength of the limiting member 50. In the connecting structure 100, the first sleeve 10, the second sleeve 20 and the tensile member 60 are not necessarily provided.

In a specific embodiment, the thickness of the connecting member 53 corresponding to the gap position is smaller than the thickness of the other positions of the connecting member 53, and the platform 30 can break the connecting member 53 when the position-limiting member 50 is inserted. So set up, set up the different positions of connecting piece 53 for different thickness, be convenient for insert platform 30 and destroy connecting piece 53 when inserting locating part 50 to guarantee that connection structure 100 can dock smoothly.

Further, the connecting member 53 is provided with a predetermined breaking track 531, and the inserting table 30 can break the connecting member 53 along the predetermined breaking track 531 when inserting the limiting member 50. With such an arrangement, the preset fracture locus 531 can ensure that the inserting table 30 destroys the connecting piece 53 when inserting the limiting piece 50, thereby ensuring that the connecting structure 100 can be smoothly butted.

Further, each of the predetermined breaking tracks 531 includes two breaking grooves (not numbered) respectively opened on the inner wall and the outer wall of the connecting member 53. So configured, the smooth docking of the connection structure 100 can be further ensured. It will be appreciated that it is also possible to provide the breaking grooves only on the inner or outer wall.

It is understood that the rupture groove 531 may have various shapes such as a straight line shape, a dotted line shape, a curved line shape, etc.

When the limiting member 50 is the limiting member 50 shown in fig. 15, the connecting member 53 is located at an end of the split single body 52 relatively close to the starting point of the insertion direction of the platform 30, and at this time, in order to improve the problem that the first latch set 31 and the second latch set 51 are not firmly engaged, an inner diameter of a shape surrounded by an end of the split single body 52 relatively close to the end point of the insertion direction of the platform 30 is smaller than an inner diameter of a shape surrounded by an end of the split single body 52 relatively close to the starting point of the insertion direction of the platform 30. So set up, enclose the internal diameter size of establishing the shape through changing split monomer 52 both ends, compensatied the meshing error that split monomer 52 warp and bring, guaranteed that the platform 30 is inserting behind locating part 50, still has better meshing reliability between first latch group 31 and the second latch group 51.

In one particular embodiment, the connector 53 is annular. So set up, can enough guarantee that connecting piece 53 has the effect of connecting split monomer 52, can reduce manufacturing cost again.

In a particular embodiment, the connector 53 is located in the gap between the two split cells 52. With the arrangement, the connection performance among the split single bodies 52 can be ensured, the length of the split single bodies 52 in the axial direction cannot be increased, and the connection structure 100 is convenient to develop towards miniaturization.

Furthermore, two connecting pieces 53 are arranged in each gap, and the two connecting pieces 53 are respectively positioned at two ends of the split single body 52 which are opposite to each other, so that the connection reliability of the connecting pieces 53 can be improved.

In a specific embodiment, the connecting member 53 is located on the outer circumferential wall of the split single body 52, and the connecting member 53 has elasticity, and the split single bodies 52 are folded together by the connecting member 53. So set up, connecting piece 53 can be connected a plurality of split monomers 52 again after split monomer 52 shaping, can reduce the manufacturing cost of locating part 50 to make the platform 30 more smooth and easy when inserting locating part 50. It will be appreciated that the split elements 52 can be folded together only by the connecting element 53, in which case the elastic sleeve 40 may not be provided. The connecting member 53 may be a high performance rubber member, a plastic member, or other material with high mechanical strength and good elasticity.

Further, the outer circumferential wall of the split unit 52 is provided with a receiving groove 521 along the radial direction, and the connecting member 53 is received in the receiving groove 521. By such an arrangement, the connecting member 53 can be prevented from affecting the engagement between the first latch set 31 and the second latch set 51.

Referring also to fig. 18, fig. 18 is a schematic structural diagram of the tensile member 60 shown in fig. 1.

The tensile member 60 is substantially hollow and cylindrical, and the tensile member 60 is used for limiting the elastic sleeve 40 and the limiting member 50 from coming out of the second sleeve 20. The outer peripheral wall of the tensile member 60 is threaded for being fixed to the second sleeve 20 by threaded connection. It is understood that tensile member 60 may have other shapes, and is not limited thereto.

In a specific embodiment, the inner wall of the tension member 60 is formed with a mounting hole 712, and the mounting hole 712 is a hexagonal mounting hole, an octagonal mounting hole, or a dodecagonal mounting hole. With this arrangement, the mounting base 70 can be fitted with an external mounting tool through the mounting hole 712, shortening the time taken to mount the base 70.

Referring also to fig. 19, fig. 19 shows an alternative configuration of tensile member 60 of fig. 18.

In a specific embodiment, the tensile member 60 has a first guiding portion 62 on an inner wall surface thereof, and the first guiding portion 62 is used for guiding the insertion stage 30 to be inserted into the tensile member 60. So set up, when a plurality of connection structure 100 when the cooperation is used, the butt joint error of inserting platform 30 and tensile piece 60 can be compensatied better in the setting of first guide portion 62, guarantees that two prefabricated building piles can be connected smoothly.

Further, the first guiding portion 62 is a slope, and the inner diameter of the inner wall surface of the tensile member 60 at the end relatively close to the limiting member 50 is smaller than the inner diameter at the end relatively far from the limiting member 50 by the first guiding portion 62. So set up, the inclined plane is convenient for produce and process to guide effect is better.

Further, the first guide portion 62 penetrates both ends of the tensile member 60. With this arrangement, the guide path of the first guide portion 62 is long, and the guide effect of the first guide portion 62 can be further increased.

It is understood that in other embodiments, the first guiding portion 62 may be disposed only at one end of the tensile member 60 relatively far from the limiting member 50. So set up, can enough guarantee that first guide 62 has better guide effect, can guarantee the mechanical strength of tensile piece 60 again.

Further, one end of the limiting member 50 relatively close to the tensile member 60 is provided with a second guiding portion 55, and the second guiding portion 55 is used for guiding the inserting table 30 to be inserted into the limiting member 50. With such an arrangement, the second guide portion 55 can be smoothly inserted into the stopper 50 of the platform 30, thereby shortening the time required for construction.

Specifically, the second guiding portion 55 is a slope, and an inner diameter of an end of the second guiding portion 55 relatively close to the tensile member 60 is greater than or equal to an inner diameter of a side of the tensile member 60 relatively close to the limiting member 50. With such an arrangement, the second guide portion 55 is formed as a slope for facilitating the machining and forming; the inner diameter of the second guiding portion 55 relatively close to one end of the tensile member 60 is greater than or equal to the inner diameter of the tensile member 60 relatively close to one side of the limiting member 50, so that when the platform 30 is located at the boundary between the tensile member 60 and the limiting member 50, the platform can smoothly transit to the second guiding portion 55, and smoothly abut against the limiting member 50. Moreover, the inner diameter of the second guide portion 55 at the end relatively close to the tension member 60 is set to be larger than the inner diameter of the tension member 60 at the side relatively close to the limiting member 50, so that the requirement on the machining precision can be reduced, and the machining cost is prevented from being greatly increased due to the precision requirement. It is understood that, in order to ensure the contact area between the limiting member 50 and the tensile member 60, the inner diameter of the second guiding portion 55 at the end relatively close to the tensile member 60 is preferably slightly larger than the inner diameter of the tensile member 60 at the side relatively close to the limiting member 50, for example, 2mm to 10 mm.

In a specific embodiment, an end of the tensile member 60 opposite to the position far from the position-limiting member 50 is provided with a boss 63 in the radial direction, and the boss 63 abuts against an end of the second sleeve 20 and limits a length of the tensile member 60 extending into the second sleeve 20. By such arrangement, the relative position relationship between the tensile member 60 and the second sleeve 20 can be determined, so that the position relationship between the tensile member 60 and the limiting member 50 is determined, and the situation that the tensile member 60 extends into the second sleeve 20 for too long to hinder the elastic expansion or elastic contraction of the elastic sleeve 40 is avoided.

Referring to fig. 20 to 22, fig. 20 is a partially enlarged view of a portion a shown in fig. 1; fig. 21 to 22 show various alternative configurations of the connection structure 100 shown in fig. 20.

Since the connection structure having a plurality of snap-fit locations may be jammed and unsmooth when connected, in one embodiment, one of the first and second latch tooth sets 31 and 51 is provided with a first guide portion 3111, and the first guide portion 3111 is obliquely arranged on a radial plane of the socket 30. With this arrangement, the smoothness of the insertion stage 30 when the stopper 50 is inserted can be increased. It is to be appreciated that the attachment structure 100 in this case does not require the provision of tensile member 60.

Further, the other of the first latch set 31 and the second latch set 51 is provided with a second guide portion 5111, and the first guide portion 3111 is provided to be engaged with the second guide portion 5111. With this arrangement, the first guide portion 3111 and the second guide portion 5111 are engaged with each other, so that the guide function for the insert table 30 can be improved, and the smoothness of the insert table 30 when the stopper 50 is inserted can be further improved. It is to be understood that the second guide portion 5111 is not necessarily provided, and that the guide function can be also achieved by providing only the first guide portion 3111.

Furthermore, the first guide portion 3111 and the second guide portion 5111 are both inclined surfaces, and the first guide portion 3111 is parallel to the second guide portion 5111. So set up, first guide 3111 and second guide 5111 processing is simple and convenient, low in production cost to the guide effect is better. It is understood that the first guide portion 3111 and the second guide portion 5111 may also be a curved surface, a folded surface or other structures, which are not limited herein.

In a specific embodiment, a first stopping portion 3112 is disposed on a side of the first latch set 31 or the second latch set 51 opposite to the first guide portion 3111, and the first stopping portion 3112 can stop the insert table 30 from being pulled out of the limiting member 50. By such an arrangement, the plug-in platform 30 can be prevented from being separated from the limiting part 50, and the use strength of the connecting structure 100 is ensured.

Further, a second stop portion 5112 is disposed on a side of the first latch group 31 or the second latch group 51 facing away from the second guide portion 5111, and the first stop portion 3112 is disposed in cooperation with the second stop portion 5112. With such an arrangement, the first stopper portion 3112 and the second stopper portion 5112 are matched to prevent the socket 30 from coming off from the stopper 50, so as to further improve the reliability of the connection structure 100.

Furthermore, when the platform 30 moves in the opposite direction of the inserting direction, the first stopping portion 3112 and the second stopping portion 5112 cooperate with each other, so that the limiting member 50 tends to close, as shown in fig. 21. With such an arrangement, when the plug platform 30 moves reversely, the first stopping portion 3112 and the second stopping portion 5112 are matched with each other, so that the limiting member 50 can be folded, the plug platform 30 can be further prevented from being separated from the limiting member 50, and the use stability of the connection structure 100 is improved.

Specifically, the first guide portion 3111 and the second guide portion 5111 are both inclined surfaces, the first stopping portion 3112 and the second stopping portion 5112 are both inclined surfaces, and the first guide portion 3111, the second guide portion 5111, the first stopping portion 3112 and the second stopping portion 5112 are inclined in the same direction. With such an arrangement, not only the first guide portion 3111, the second guide portion 5111, the first stopping portion 3112 and the second stopping portion 5112 can be conveniently formed, but also the inserting table 30 and the limiting member 50 have guiding cooperation and stopping cooperation, when the inserting table 30 is pulled out, the first stopping portion 3112 and the second stopping portion 5112 cooperate with each other to enable the limiting member 50 to be in a folding trend.

It is understood that in other embodiments, both the first stopping portion 3112 and the second stopping portion 5112 can be disposed as a plane, and both the first stopping portion 3112 and the second stopping portion 5112 are parallel to the radial plane of the platform 30, as shown in fig. 20. So set up, the processing of first backstop face and second backstop face of being convenient for has reduced the processing cost to backstop effect is better.

In a specific embodiment, a second latch set 51 is disposed on an inner wall of the split single body 52, and the first stopping portion 3112 and the second stopping portion 5112 cooperate with each other, so that there is a tendency of folding between the split single bodies 52. So set up, the cost of processing of locating part 50 is lower to a plurality of split monomers 52 mutually support and have better backstop effect.

In the traditional connection structure, if the hollow structure of the limiting piece is set to be too small, the butt joint between the inserting table and the limiting piece is not smooth; if the hollow structure of the limiting part is too large, the connection reliability between the plug-in stand and the limiting part is affected.

In view of the above problem, in a specific embodiment of the present invention, one of the end of the limiting member 50 relatively close to the tensile member 60 and the end of the tensile member 60 relatively close to the limiting member 50 is provided with a first tightening portion 54, and when the platform 30 moves in the opposite direction of the inserting direction, the limiting member 50 has a tendency to contract radially under the action of the first tightening portion 54. Through the arrangement of the first tightening portion 54, when the platform 30 moves along the pulling direction, the limiting member 50 can have a tendency to move towards the axial direction of the platform 30 under the action of the first tightening portion 54, so that the limiting member 50 is folded and surrounds the platform 30, and the connection strength between the platform 30 and the limiting member 50 is ensured. The utility model provides an among the connection structure 100, can enough guarantee to insert the platform 30 and can insert locating part 50 smoothly, can guarantee again to insert the joint strength between platform 30 and the locating part 50, improved connection structure 100's use reliability. It is understood that, in the connection structure 100, the elastic sleeve 40 is not necessarily provided, and the elastic contraction and the elastic expansion can be achieved by the limiting member 50 itself; the first latch set 31 may not be provided on the socket 30, and the second latch set 51 may not be provided on the limiting member 50, that is, the socket 30 and the limiting member 50 in the connecting structure 100 may not be provided with a plurality of latching portions.

Further, the other of the end of the limiting member 50 relatively close to the tensile member 60 and the end of the tensile member 60 relatively close to the limiting member 50 is provided with a second tightening portion 61, and the second tightening portion 61 is matched with the first tightening portion 54; when the platform 30 moves in the opposite direction of the insertion direction, the stopper 50 tends to move in the axial direction of the platform 30 by the cooperation of the first tightening part 54 and the second tightening part 61. With this arrangement, the tightening effect of the limiting member 50 can be further improved. It will be appreciated that only the first tightening part 54 may be provided, and the second tightening part 61 may not be provided, as well as achieving the tightening effect.

Furthermore, the first tightening part 54 is an inclined surface, which facilitates the machining and forming of the first tightening part 54 and has a better tightening effect; the second tightening part 61 is an inclined plane, and the second tightening part 61 and the first tightening part 54 are arranged in parallel, so that the second tightening part 61 can be conveniently machined and formed, and the first tightening part 54 and the second tightening part 61 are matched to have a good tightening effect.

Specifically, the first tightening part 54 is inclined at an angle of 2 ° to 80 °, preferably 30 ° to 60 °, relative to the radial plane of the limiting member 50; and/or the second tightening part 61 is inclined at an angle of 2 ° to 80 °, preferably 30 ° to 60 °, relative to the radial plane of the limiting element 50. With such an arrangement, not only can a better tightening effect be achieved, but also the defects of stress concentration and the like caused by the sharp part of the first tightening part 54 and/or the second tightening part 61 can be avoided.

Referring to fig. 23 to 24, fig. 23 is a schematic structural view of the connection structure 100 after glue filling; fig. 24 is a partially enlarged view of a portion B shown in fig. 23.

In one embodiment, a curing adhesive 80 is disposed between the second sleeve 20 and the tensile member 60. The curing adhesive 80 is disposed between the second sleeve 20 and the tensile member 60, so that the mechanical strength of the connection structure 100 can be greatly increased, and the use stability of the connection structure 100 is improved.

In one particular embodiment, insert station 30 is spaced from tensile member 60 and forms a first potting pathway 81. So set up, inside curing glue 80 can follow first encapsulating passageway 81 and get into connection structure 100, the encapsulating process construction of being convenient for.

Specifically, the portion of the socket 30 corresponding to the limiting member 50 is provided with a first latch set 31, and the portion of the socket 30 corresponding to the tensile member 60 is cylindrical. So set up, can enough reduce the processing cost of inserting platform 30, can increase the encapsulating capacity of first encapsulating passageway 81 again. It is understood that, in other embodiments, the portion of the platform 30 corresponding to the tensile member 60 may also be provided with the first latch tooth group 31, and may also be in other shapes, such as a circular truncated cone shape, as long as the first glue filling channel 81 can be provided.

Further, a gap is formed between the tensile member 60 and the limiting member 50 to form a second glue filling channel 82, and the second glue filling channel 82 is communicated with the first glue filling channel 81. So set up, the setting of second encapsulating passageway 82 can enough guarantee that elastic sleeve 40 carries out elastic expansion or elastic contraction, can provide the circulation passageway again for curing to glue 80, is convenient for curing to glue 80 flow direction connection structure 100's inside.

Furthermore, a gap is formed between the elastic sleeve 40 and the second sleeve 20 and forms a third glue filling channel 83, and the third glue filling channel 83 is communicated with the first glue filling channel 81 through the second glue filling channel 82. So set up, before not encapsulating, third encapsulating passageway 83 can provide elastic shrinkage and elasticity expansion's space for elastic sleeve 40, and when the encapsulating, first encapsulating passageway 81, second encapsulating passageway 82 and third encapsulating passageway 83 communicate each other, have formed the circulation passageway of curing glue 80 for the main atress structure homoenergetic of connection structure 100 is enough to be poured curing glue 80, thereby improves connection structure 100's mechanical strength.

In a specific embodiment, the height of the elastic sleeve 40 in the axial direction is smaller than the height of the stopper 50 in the axial direction. So arranged, the curing glue 80 flows from the second glue filling channel 82 to the third glue filling channel 83.

Further, one end of the elastic sleeve 40, which is relatively close to the tensile member 60, is provided with a first flow guiding inclined surface 43, and the first flow guiding inclined surface 43 is inclined towards the third glue filling channel 83; and/or one end of the limiting member 50, which is relatively close to the tensile member 60, is provided with a second flow guiding inclined surface 56, and the second flow guiding inclined surface 56 inclines towards the third glue filling channel 83. By the arrangement, the speed of the curing glue 80 flowing from the second glue filling channel 82 to the third glue filling channel 83 can be further increased, so that the construction time is shortened.

Referring to fig. 25, the present invention further provides a second embodiment, and fig. 25 is a schematic structural diagram of the second embodiment of the connection structure 100 according to the present invention. The second embodiment is substantially the same as the first embodiment in the structure of the first sleeve 10, the second sleeve 20, and the platform 30, and can be used in common, except that the base 70 is used instead of the elastic sleeve 40, the limiting member 50, and the tensile member 60.

In the present embodiment, the connection structure 100 includes a first sleeve 10, a second sleeve 20, a socket 30 and a base 70, the socket 30 is fixedly mounted on the first sleeve 10, and a first latch group 31 arranged along the axial direction is provided on the outer peripheral wall of the socket 30; the base 70 comprises a fixing part 71 and a plurality of fins 72 connected to the fixing part 71, the fixing part 71 is fixedly connected to the second sleeve 20, the plurality of fins 72 are arranged in a surrounding manner, and the inner walls of the fins 72 are provided with second bayonet tooth groups 51 matched with the first bayonet tooth groups 31; the insert table 30 can penetrate through the openings formed by the enclosing of the plurality of fins 72 through the elastic expansion of the fins 72, and the fins 72 can elastically contract and enclose the insert table 30, so that the first latch group 31 and the second latch group 51 are meshed with each other.

The utility model provides a connection structure 100, through mutually supporting with second latch group 51 on the locating part 50 first latch group 31 on the platform 30, the multistage limit structure who has a plurality of joint departments has been formed, when a plurality of connection structure 100 use together, can guarantee through multistage limit structure that every connection structure 100 can both the joint location, and when the latch of certain department is cracked, other latches in the multistage limit structure still can play the effect of joint location, the connection reliability between the prefabricated building pile has greatly been improved. Furthermore, the utility model provides a connection structure 100 is for other connection structure that have a plurality of joint location department, and is lower to the requirement of raw materials material, and the cost of manufacture is lower to the assembly is simple, is convenient for use on the site.

In a particular embodiment, the outer diameter of the insert table 30 gradually tapers in the insertion direction of the insert table 30; and the opening surrounded by the fin 72 is gradually contracted along the insertion direction of the insert table 30. With the arrangement, the inserting table 30 can conveniently enter the base 70, and especially when a plurality of connecting structures 100 are matched for use, construction errors can be greatly compensated, so that each connecting structure 100 can be smoothly connected.

Referring to fig. 26 to 28, fig. 26 is a schematic structural view of the insert stage 30 in fig. 25; FIG. 27 is a schematic view of the structure of the base 70 of FIG. 25; fig. 28 is a cross-sectional view of the base 70 of fig. 27.

In a specific embodiment, the peripheral wall of the platform 30 is provided with a first stop projection 33, and the first stop projection 33 can limit the depth of the platform 30 inserted into the base 70. So set up, be convenient for constructor to judge whether inserting platform 30 has installed in place.

In a specific embodiment, the outer peripheral wall of the fixing portion 71 is provided with a second stopping protrusion 711, and the second stopping protrusion 711 can limit the depth of the fixing portion 71 extending into the second sleeve 20. So set up, be convenient for constructor to judge whether installation of base 70 is in place.

Specifically, in the present embodiment, the first stopping protrusion 33 and the second stopping protrusion 711 are both annular protrusions. In other embodiments, the first stopping block and the second stopping protrusion 711 may also have other shapes, such as a bump, as long as they can function as a stopper.

In a specific embodiment, the first latch set 31 includes a plurality of first latches 311, the second latch set 51 includes a plurality of second latches 511, and the number of the first latches 311 is greater than or equal to the number of the second latches 511. With such an arrangement, the mating between the plug-in platform 30 and the base 70 can be more flexible, and particularly, when the plurality of connecting structures 100 are butted together, the plug-in platform 30 can be ensured to be clamped and fixed. It can be understood that the number of the first latch teeth 311 may also be smaller than the number of the second latch teeth 511 according to actual requirements.

In one particular embodiment, the retainer portion 71 is fixedly mounted to the second sleeve 20 by a threaded connection. By the arrangement, the base 70 and the second sleeve 20 are installed tightly, the installation mode is simple, and construction operation is facilitated. It will be appreciated that the base 70 and the second sleeve 20 may be fixedly connected by other means, such as welding, riveting, snap-fastening, etc.

In a specific embodiment, the inner wall of the fixing portion 71 is provided with a mounting hole 712, and the mounting hole 712 is a hexagonal mounting hole, an octagonal mounting hole or a dodecagonal mounting hole. With this arrangement, the mounting base 70 can be fitted with an external mounting tool through the mounting hole 712, shortening the time taken to mount the base 70.

Preferably, the insert table 30 is provided with a guide slope 32 at an end relatively far from the first sleeve 10. With such an arrangement, the insertion platform 30 can be conveniently inserted into the base 70, and especially when a plurality of connecting structures 100 are used in a matching manner, construction errors can be greatly compensated by the arrangement of the guide inclined planes 32, so that each connecting structure 100 can be smoothly connected.

In a specific embodiment, the Rockwell hardness of the fin 72 is equal to or less than the Rockwell hardness of the fixing portion 71. With this arrangement, the fin 72 has a small rockwell hardness, and is not broken when elastically expanded or contracted, and the fixing portion 71 has a large rockwell hardness and is not easily deformed when connected to the second sleeve 20. The fins 72 are not damaged when the platform 30 and the base 70 are butted, and the use strength of the connecting structure 100 is ensured.

Preferably, fins 72 have a Rockwell hardness of HRC15 to HRC 55; and/or the Rockwell hardness of the fixing part 71 is HRC40 to HRC 60. Due to the arrangement, not only can the fins 72 be prevented from cracking during elastic contraction and elastic expansion, but also the fins 72 can be ensured to provide enough supporting force after the insertion platform 30 is enclosed so as to increase the bearing capacity of the rapid butt joint assembly; fixed part 71 can provide sufficient holding power in order to increase the bearing capacity of quick butt joint subassembly, and fixed part 71 is difficult to deform when bearing pressure simultaneously, can improve the joint strength between the pre-buried component in fixed part 71 and the quick butt joint mechanism, increases quick butt joint subassembly's life.

In a specific embodiment, the peripheral wall of the platform 30 is provided with a first set of teeth 31, and the first set of teeth 31 is a spiral tooth 312. At least one position between the platform 30 and the base 70 can be ensured to be clamped through the spiral clamping teeth 312 on the platform 30. When a plurality of connection structure 100 use together, can guarantee through spiral latch 312 on inserting the platform 30 that it can the joint to insert at least one department between platform 30 and the base 70 to guarantee that every connection structure 100 can both the joint location, and when the spiral latch 312 fracture of a certain department, other positions of spiral latch 312 still can play the effect that the joint was located, greatly improved the connection reliability between the prefabricated building pile.

In a specific embodiment, the helical latch 312 is provided with a first guide portion 3111, the first guide portion 3111 is obliquely disposed on a radial plane of the insert table 30, and the first guide portion 3111 can guide the helical latch 312 to penetrate the fin 72. In this arrangement, the first guide portion 3111 can increase the smoothness of the insertion table 30 when it is inserted into the base 70.

Further, the first guide portion 3111 is a slope. So set up, first guide portion 3111 processes portably, low in production cost to the direction effect is better.

In a specific embodiment, a side of the spiral latch 312 opposite to the first guide portion 3111 is provided with a first stopping portion 3112, and the first stopping portion 3112 can stop the insertion stage 30 from being pulled out from the base 70. By such an arrangement, the plug-in platform 30 can be prevented from being separated from the limiting part 50, and the use strength of the connecting structure 100 is ensured.

Further, the first stopper portion 3112 is a plane parallel to the radial plane of the platform 30, and the end surface of the fin 72 relatively far from the fixing portion 71 is a plane parallel to the radial plane of the platform 30. So set up, the processing of the first backstop face of being convenient for and fin 72 terminal surface has reduced the processing cost to backstop effect is better.

Referring to fig. 29, the present invention further provides a third embodiment, and fig. 29 is a schematic structural diagram of the third embodiment of the connection structure 100 according to the present invention. The third embodiment is substantially the same as the connection structure 100 of the second embodiment, except that the second latch group 51 may not be provided on the base 70 in the third embodiment.

In the third embodiment, the connection structure 100 includes a first sleeve 10, a second sleeve 20, a socket 30 and a base 70, the socket 30 is fixedly mounted on the first sleeve 10, a first latch group 31 is provided on an outer peripheral wall of the socket 30, the first latch group 31 includes a plurality of first latches 311 arranged along an axial direction; the base 70 comprises a fixing portion 71 and a plurality of fins 72 connected to the fixing portion 71, the fixing portion 71 is fixedly connected to the second sleeve 20, and the plurality of fins 72 are arranged in a surrounding manner; the insert table 30 can pass through the openings formed by the enclosing of the plurality of fins 72 through the elastic expansion of the fins 72, the fins 72 can elastically contract and enclose the insert table 30, and one of the first latches 311 abuts against the end portions of the fins 72.

The utility model provides a connection structure 100 through the first latch group 31 on the platform 30 of inserting, has a plurality of joint departments that can mutually support with fin 72. When a plurality of connection structure 100 use together, can guarantee through a plurality of first latch 311 on inserting the platform 30 that every connection structure 100 can both the joint location to when the first latch 311 fracture of a certain department, other first latch 311 still can play the effect that the joint was located, have greatly improved the connection reliability between the prefabricated building pile. In addition, compared with other connecting structures with a plurality of clamping positioning positions, the connecting structure 100 has the advantages of lower requirements on raw materials, lower manufacturing cost, simplicity in assembly and convenience in use on the construction site.

Specifically, the portion of the insert table 30 between the first stop block and the first latch tooth group 31 may be cylindrical or truncated cone, as shown in fig. 31 and 32.

The utility model also provides a building structure, including two piece at least prefabricated building piles and connection structure 100, connection structure 100 is foretell connection structure 100, and first sleeve 10 sets firmly respectively in two prefabricated building piles with second sleeve 20, and two prefabricated building piles pass through connection structure 100 and connect.

The utility model provides an among the building structure, the connected mode between two prefabricated building piles is simple to connect the reliability height, tensile strength is high.

The features of the above embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above embodiments are not described, but should be construed as being within the scope of the present specification as long as there is no contradiction between the combinations of the features.

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 connecting structure is applied to a prefabricated building pile and is characterized by comprising a first sleeve (10), a second sleeve (20), a plugging table (30) and a base (70), wherein the plugging table (30) is fixedly installed on the first sleeve (10), a first clamping tooth group (31) is arranged on the outer peripheral wall of the plugging table (30), and the first clamping tooth group (31) comprises a plurality of first clamping teeth (311) which are arranged along the axial direction; the base (70) comprises a fixing part (71) and a plurality of fins (72) connected to the fixing part (71), the fixing part (71) is fixedly connected to the second sleeve (20), and the fins (72) are arranged in a surrounding manner;

the inserting table (30) can penetrate through openings formed by surrounding of the fins (72) through elastic expansion of the fins (72), the fins (72) can elastically contract and enclose the inserting table (30), and one of the first clamping teeth (311) abuts against the end portions of the fins (72).

2. The connection structure according to claim 1, characterized in that the first latch (311) is provided with a first guide portion (3111), the first guide portion (3111) is obliquely arranged on a radial plane of the platform (30), and the first guide portion (3111) can guide the first latch (311) to penetrate through the fin (72).

3. The connection structure according to claim 2, wherein the first guide portion (3111) is a slope.

4. The connection according to claim 2, characterized in that a side of the first latch (311) opposite to the first guide (3111) is provided with a first stop (3112), and the first stop (3112) can stop the plug (30) from being pulled out of the base (70).

5. The connection structure according to claim 4, wherein the first stopper portion (3112) is an annular surface parallel to a radial plane of the socket (30), an end surface of the fin (72) relatively distant from the fixing portion (71) is a plane parallel to a radial plane of the socket (30), and the first stopper portion (3112) is capable of abutting and surface-contacting with an end of the fin (72) relatively distant from the fixing portion (71).

6. A connection arrangement according to claim 4, characterised in that the first stop (3112) cooperates with an end face of the fin (72) relatively remote from the fixing portion (71) upon a movement of the insert table (30) in the opposite direction of the insertion direction, so that the fins (72) have a tendency to fold.

7. The connection according to claim 6, characterized in that the end of the first stop (3112) and/or the fin (72) relatively far from the fixing portion (71) is beveled.

8. The connecting structure according to claim 1, wherein the fixing portion (71) has a mounting hole (712) formed on an inner wall thereof, and the mounting hole (712) is a hexagonal mounting hole, an octagonal mounting hole or a dodecagonal mounting hole.

9. A connection arrangement according to claim 1, characterized in that the insert table (30) is provided with a guide ramp (32) at the end facing away from the first sleeve (10).

10. The utility model provides a building structure, its characterized in that includes two piece at least prefabricated building piles and connection structure, connection structure be any one of claim 1 ~ 9 connection structure, first sleeve (10) with second sleeve (20) set firmly respectively in two prefabricated building piles, two prefabricated building pile passes through connection structure connects.

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