CN218204340U

CN218204340U - Connecting structure for precast tubular pile

Info

Publication number: CN218204340U
Application number: CN202222477727.1U
Authority: CN
Inventors: 李翔; 邬正兴; 陈郁馨; 刘紫祥; 刘云龙
Original assignee: Zhejiang Erjian Construction Group Co ltd
Current assignee: Zhejiang Erjian Construction Group Co ltd
Priority date: 2022-09-17
Filing date: 2022-09-17
Publication date: 2023-01-03
Anticipated expiration: 2032-09-17

Abstract

The application discloses a connection structure for precast tubular pile relates to precast tubular pile technical field, and it includes sleeve and lower sleeve, it has seted up the mounting hole to go up telescopic top surface, it runs through to go up the mounting hole go up the sleeve setting, a connecting reinforcement install in go up in the mounting hole, the mounting hole has been seted up down to telescopic top surface down, the mounting hole runs through down the sleeve sets up, another treat connecting reinforcement install in the mounting hole down, go up telescopic bottom surface and install fan-shaped strip of a plurality of, every the barb is all installed to fan-shaped strip's outer wall, a plurality of is used for holding the embedded groove of barb, a plurality of barb and a plurality of the embedded groove one-to-one sets up. This application has the effect that reduces precast tubular pile's construction cost.

Description

A connection structure for precast tubular pile

Technical Field

The application relates to the technical field of precast tubular piles, in particular to a connecting structure for a precast tubular pile.

Background

The precast tubular pile is a reinforced concrete structure with a circular ring-shaped section, and has the advantages of low construction cost, small self weight, easy hoisting and transportation and the like, so the precast tubular pile is widely applied to the foundation engineering of modern buildings, and particularly for buildings constructed on unstable soil layers or soft soil layers, the precast tubular pile transmits the load of the upper buildings to the underground stable rock stratum, thereby providing good supporting effect for the upper buildings.

Usually, in the prefabrication construction stage of the precast tubular pile, an operator needs to set longitudinal structural steel bars in the precast tubular pile to improve the shearing resistance and the bearing capacity of the precast tubular pile. When the axial length of precast tubular pile surpassed the length of single longitudinal structure reinforcing bar, need connect two reinforcing bars along length direction to make the reinforcing bar configuration of precast tubular pile satisfy the requirement of design drawing.

The steel bar connection mode commonly used is muffjoint, and muffjoint needs operating personnel to wait to connect the one end of reinforcing bar to turn the silk and handle for the reinforcing bar end and the telescopic internal thread that accomplish the car silk match each other, and this kind of steel bar connection mode needs the car silk equipment to cooperate, has increased the construction cost of steel bar connection processing, has just also increased the construction cost of precast tubular pile.

SUMMERY OF THE UTILITY MODEL

In order to reduce precast tubular pile's construction cost, this application provides a connection structure for precast tubular pile.

The application provides a connection structure for precast tubular pile adopts following technical scheme:

the utility model provides a connection structure for precast tubular pile, includes sleeve and lower sleeve, it has seted up the mounting hole to go up telescopic top surface, it runs through to go up the mounting hole go up the sleeve setting, wait to connect the reinforcing bar install in go up in the mounting hole, the mounting hole has been seted up down to the lower telescopic top surface, the mounting hole runs through down the sleeve sets up, and another waits to connect the reinforcing bar install in the mounting hole down, go up telescopic bottom surface and install the fan-shaped strip of a plurality of, every the barb is all installed to the outer wall of fan-shaped strip, a plurality of has been seted up to the inner wall of mounting hole two and has been used for holding the embedded groove of barb, a plurality of barb and a plurality of the embedded groove one-to-one sets up.

Through the technical scheme, when operating personnel need connect two reinforcing bars, through treating two reinforcing bar tip that connect to install respectively in last mounting hole and lower mounting hole, then will go up fan-shaped strip on the sleeve and insert down in the mounting hole, insert the in-process of mounting hole down at fan-shaped strip, fan-shaped strip receives the extrusion of mounting hole inner wall down, the free end of fan-shaped strip will take place deformation to the axis direction of mounting hole down, just to the embedded groove when the barb, fan-shaped strip reconversion, this moment, the barb will be pegged graft in the embedded groove, the connection of sleeve and lower sleeve has just also been accomplished in the back, the connection of two reinforcing bars, this kind of connected mode, need not to turn the silk equipment and carry out the car silk processing to the reinforcing bar tip, consequently also need not to add car silk equipment, thereby prefabricated tubular pile's construction cost has been reduced.

The present invention in a preferred embodiment can be further configured to: every tip of treating the coupling bar all is provided with the bellying, the radius that corresponding reinforcing bar one end was kept away from to the bellying is greater than the bottom internal diameter of mounting hole down, the radius that corresponding reinforcing bar one end was kept away from to the bellying is greater than go up the top internal diameter of mounting hole.

Through above-mentioned technical scheme, because all be provided with the bellying on two reinforcing bars, because the bellying receives the limiting displacement of last mounting hole inner wall or lower mounting hole inner wall, reduced the reinforcing bar from last sleeve or the interior possibility that breaks away from of lower sleeve.

The present invention may be further configured in a preferred embodiment as: and a butting column is arranged between the two convex parts, and two ends of the butting column can be butted to the two convex parts respectively.

Through above-mentioned technical scheme, because the both ends of butt joint post butt respectively in two bellyings, the bellyings on two reinforcing bars have reduced the reinforcing bar in last sleeve or lower sleeve along vertical movement's possibility under the limiting displacement of butt joint post.

The present invention may be further configured in a preferred embodiment as: each protruding portion is far away from the terminal surface of corresponding reinforcing bar and has all been seted up heavy groove, the butt joint of the both ends one-to-one of butt joint post is in two the bottom surface inner wall in heavy groove.

Through above-mentioned technical scheme, because the both ends of butt post are all installed in heavy inslot to reduced the butt post and taken place lateral displacement's possibility, just also can keep the supporting role of butt post to the reinforcing bar.

The present invention may be further configured in a preferred embodiment as: the steel bar fixing device is characterized by further comprising an end cover, wherein a first through hole used for penetrating through a steel bar is formed in the top surface of the end cover, a second through hole used for installing the upper sleeve is formed in the bottom surface of the end cover, the first through hole is communicated with the second through hole, an external thread is arranged at the bottom of the end cover, an internal thread is arranged at the top of the lower sleeve, and the internal thread and the external thread are matched with each other.

Through above-mentioned technical scheme, after operating personnel inserted the embedded groove with the barb, install the end cover on last telescopic reinforcing bar again, then rotated the end cover for internal thread and external screw thread interlock each other, thereby promoted last sleeve and lower telescopic connection stability.

The present invention may be further configured in a preferred embodiment as: the end cover is coated with durable glue.

Through above-mentioned technical scheme, before rotating the end cover, scribble durable glue on the end cover, before durable glue air-dries, rotate the end cover rapidly, on the one hand for internal thread and external screw thread interlock each other, on the other hand makes the bottom of going up the sleeve and the top of lower sleeve pass through durable glue bonding, and durable glue not only can promote the joint strength of upper and lower sleeve, can also reduce the possibility that the foreign matter got into upper and lower sleeve inside.

The present invention in a preferred embodiment can be further configured to: the inner wall of mounting hole has vertically seted up the guide way down, barb slidable mounting is in the guide way, the guide way communicate in the embedded groove, the horizontal degree of depth of embedded groove is greater than the horizontal degree of depth of guide way.

Through above-mentioned technical scheme, before inserting fan-shaped strip downwards, aim at the guide way with one of them barb, then insert fan-shaped strip to can make the barb can the one-to-one accurately insert the embedded groove in.

The present invention in a preferred embodiment can be further configured to: the outer peripheral surface of the end cover and the outer peripheral surface of the lower sleeve are both provided with a reinforcing groove.

Through above-mentioned technical scheme, the outer peripheral face of end cover with reinforcing groove has all been seted up to lower telescopic outer peripheral face, when the prefabricated tubular pile concrete of later stage pouring, can increase the area of contact between concrete and end cover, the lower sleeve, has just also increased the frictional force between concrete and end cover, the lower sleeve to can increase the joint strength between concrete and end cover, the lower sleeve.

To sum up, the utility model discloses a following beneficial technological effect:

1. an operator installs the steel bars to be connected in the upper sleeve and the lower sleeve and then connects the upper sleeve and the lower sleeve through the barbs, and the connection mode does not need threading equipment to thread the end parts of the steel bars, so that threading equipment does not need to be additionally arranged, and the construction cost of the precast tubular pile is reduced;

2. an operator rotates the end cover to enable the inner thread and the outer thread to be meshed with each other, and therefore the connection stability of the upper sleeve and the lower sleeve is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of the embodiment of the present application, mainly illustrating the configurations of the upper sleeve, the lower sleeve, the fan-shaped strips and the barbs.

Fig. 2 is an exploded view of an embodiment of the present application, illustrating mainly the configurations of the end caps, abutment posts, and sink.

Fig. 3 isbase:Sub>A schematic sectional view taken along the directionbase:Sub>A-base:Sub>A in fig. 1, mainly illustrating the configuration of the insertion groove and the guide groove.

Fig. 4 is an enlarged schematic view of a portion B in fig. 3, mainly illustrating the configuration of the guide groove.

Fig. 5 is a schematic structural view of the present upper sleeve and lower sleeve in a connected state.

Fig. 6 is a schematic sectional view taken along the direction C-C in fig. 5, mainly illustrating an internal configuration in a state where the upper and lower sleeves are coupled.

Description of reference numerals:

1. reinforcing steel bars; 11. a boss portion; 111. sinking a groove; 2. an upper sleeve; 21. an upper mounting hole; 3. a lower sleeve; 31. a lower mounting hole; 32. a groove is embedded; 33. an internal thread; 34. a guide groove; 4. a sector bar; 41. a barb; 5. a butting post; 6. an end cap; 61. a first through hole; 62. a second through hole; 63. an external thread; 7. durable glue; 8. and (7) reinforcing the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a connection structure for precast tubular pile. Referring to fig. 1 and 2, a connecting structure for a precast tubular pile comprises an upper sleeve 2, a lower sleeve 3 and an end cover 6 which are distributed from top to bottom, wherein the upper sleeve 2, the lower sleeve 3 and the end cover 6 are all cylindrical, and reinforcing grooves 8 for reinforcing the connection strength with concrete are formed in the peripheral surface of the end cover 6 and the peripheral surface of the lower sleeve 3.

Referring to fig. 2 and 3, the top surface of upper sleeve 2 is vertical to have seted up mounting hole 21, it runs through the setting of upper sleeve 2 to go up mounting hole 21, it installs in last mounting hole 21 to treat connecting reinforcement 1, lower sleeve 3's top surface is vertical to have seted up down mounting hole 31, lower mounting hole 31 runs through lower sleeve 3 and sets up, another treats connecting reinforcement 1 and installs in lower mounting hole 31, every tip of treating connecting reinforcement 1 all is provided with bellying 11, the radius that corresponding reinforcing bar 1 one end was kept away from to bellying 11 is greater than the bottom internal diameter of mounting hole 31 down, the radius that corresponding reinforcing bar 1 one end was kept away from to bellying 11 is greater than the top internal diameter of last mounting hole 21.

Go up the bottom surface of sleeve 2 and install fan-shaped strip 4 of a plurality of, the transversal fan-shaped of fan-shaped strip 4 is fan-shaped, the outer arc of the 4 cross sections of fan-shaped strip of a plurality of is located same circumference, fan-shaped strip 4 of a plurality of is along telescopic circumference evenly distributed, barb 41 is all installed to the outer wall of every fan-shaped strip 4, a plurality of embedded groove 32 that is used for holding barb 41 is seted up to the inner wall of mounting hole two, a plurality of barb 41 and a plurality of embedded groove 32 one-to-one set up, combination drawing 4, the vertical guide way 34 of having seted up of inner wall of mounting hole 31 down, barb 41 slidable mounting is in guide way 34, guide way 34 communicates in embedded groove 32, the transverse depth of embedded groove 32 is greater than the transverse depth of guide way 34.

When operating personnel need connect two reinforcing bars 1, at first install the bellying 11 on two reinforcing bars 1 of treating to connect respectively in last mounting hole 21 and lower mounting hole 31, then insert fan-shaped strip 4 in mounting hole 31 down along guide way 34, insert the in-process of mounting hole 31 down at fan-shaped strip 4, fan-shaped strip 4 receives the extrusion of mounting hole 31 inner wall down, fan-shaped strip 4's free end is with the axis direction emergence deformation of mounting hole 31 down, when barb 41 is just to embedded groove 32, fan-shaped strip 4 reconversion, at this moment, barb 41 will peg graft in embedded groove 32, the connection of sleeve 2 and lower sleeve 3 is gone up in the completion back, just also accomplished the connection of two reinforcing bars 1, this kind of connected mode, need not to car silk equipment and carry out car silk processing to reinforcing bar 1 tip, consequently also need not to add car silk equipment, thereby precast tubular pile's construction cost has been reduced.

Referring to fig. 2 and 3, heavy groove 111 has all been seted up to the terminal surface that corresponding reinforcing bar 1 was kept away from to two bellyings 11, and two heavy grooves 111 all are cylindricly, are provided with butt post 5 between two bellyings 11, and the radius of butt post 5 equals the internal diameter of heavy groove 111, butt that the both ends of butt post 5 can the one-to-one in the bottom surface inner wall of two heavy grooves 111.

Because both ends of the abutting column 5 can abut against the sunken groove 111, the possibility of the abutting column 5 generating lateral displacement is reduced, and the supporting function of the abutting column 5 on the upper steel bar 1 can be maintained.

Referring to fig. 2 and 3, a first through hole 61 for penetrating through the steel bar 1 is vertically formed in the top surface of the end cover 6, a second through hole 62 for installing the upper sleeve 2 is vertically formed in the bottom surface of the end cover 6, the first through hole 61 is communicated with the second through hole 62, an external thread 63 is arranged at the bottom of the end cover 6, an internal thread 33 is arranged at the top of the lower sleeve 3, the internal thread 33 is matched with the external thread 63, after the barb 41 is inserted into the embedded groove 32 by an operator, the end cover 6 is installed on the steel bar 1 of the upper sleeve 2, then the end cover 6 is rotated, the internal thread 33 is meshed with the external thread 63, and therefore the connection stability of the upper sleeve 2 and the lower sleeve 3 is improved. The end cap 6 is coated with a durable glue 7 for enhancing the strength of the connection and the sealing effect.

Referring to fig. 5 and 6, the coupled state of the upper sleeve 2 and the lower sleeve 3 is illustrated, and the internal configuration of the upper sleeve 2 and the lower sleeve 3 in the coupled state is also illustrated.

The implementation principle of the embodiment is as follows: when an operator needs to connect two steel bars 1, firstly, the protruding parts 11 on the two steel bars 1 to be connected are respectively installed in the upper installation hole 21 and the lower installation hole 31, then the fan-shaped strips 4 are inserted into the lower installation hole 31 along the guide grooves 34, after the barbs 41 are embedded into the embedded grooves 32, the end cover 6 is installed, and the durable glue 7 is coated on the end cover 6, before the durable glue 7 is air-dried, the end cover 6 is rapidly rotated, so that the internal threads 33 and the external threads 63 are mutually occluded, meanwhile, the sealing of the junction of the end cover 6 and the lower sleeve 3 is also completed, and the installation of the connecting structure is completed.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited in sequence, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a connection structure for precast tubular pile which characterized in that: including last sleeve (2) and lower sleeve (3), go up the top surface of sleeve (2) and seted up mounting hole (21), it runs through to go up mounting hole (21) go up sleeve (2) and set up, a connecting reinforcement (1) install in go up in mounting hole (21), mounting hole (31) have been seted up down to the top surface of lower sleeve (3), mounting hole (31) run through down sleeve (3) set up, another treat connecting reinforcement (1) install in down in mounting hole (31), go up the bottom surface of sleeve (2) and install fan-shaped strip of a plurality of (4), every barb (41) are all installed to the outer wall of fan-shaped strip (4), the inner wall of mounting hole two has been seted up a plurality of and has been used for holding embedded groove (32), a plurality of barb (41) and a plurality of embedded groove (32) one-to-one sets up.

2. The connection structure for the precast tubular pile according to claim 1, wherein: every tip of treating connecting reinforcement (1) all is provided with bellying (11), the radius that corresponding reinforcing bar (1) one end was kept away from in bellying (11) is greater than the bottom internal diameter of mounting hole (31) down, the radius that corresponding reinforcing bar (1) one end was kept away from in bellying (11) is greater than go up the top internal diameter of mounting hole (21).

3. The connection structure for the precast tubular pile according to claim 2, wherein: and a butt joint column (5) is arranged between the two bosses (11), and two ends of the butt joint column (5) can butt against the two bosses (11) respectively.

4. A connecting structure for a precast tubular pile according to claim 3, characterized in that: every protruding portion (11) keep away from the terminal surface of corresponding reinforcing bar (1) and have all seted up heavy groove (111), the butt of the both ends one-to-one of butt post (5) is in two the bottom surface inner wall in heavy groove (111).

5. The connection structure for the precast tubular pile according to claim 1, wherein: still include end cover (6), through-hole one (61) that are used for wearing to establish reinforcing bar (1) are seted up to the top surface of end cover (6), the bottom surface of end cover (6) is seted up and is used for the installation through-hole two (62) of upper sleeve (2), through-hole one (61) communicate in through-hole two (62), the bottom of end cover (6) is provided with external screw thread (63), the top of lower sleeve (3) is provided with internal thread (33), internal thread (33) with external screw thread (63) match each other.

6. The connection structure for the precast tubular pile according to claim 5, wherein: the end cover (6) is coated with durable glue (7).

7. The connection structure for the precast tubular pile according to claim 1, wherein: guide way (34) have vertically been seted up to the inner wall of lower mounting hole (31), barb (41) slidable mounting is in guide way (34), guide way (34) communicate in embedded groove (32), the transverse depth of embedded groove (32) is greater than the transverse depth of guide way (34).

8. The connection structure for the precast tubular pile according to claim 5, wherein: and reinforcing grooves (8) are formed in the peripheral surface of the end cover (6) and the peripheral surface of the lower sleeve (3).