CN212714922U - Connecting assembly, precast pile and precast pile combination - Google Patents

Abstract

The utility model discloses a connecting assembly, a precast pile and a precast pile combination, wherein the connecting assembly comprises a locking piece and a shell, the locking piece is provided with at least one lock tongue, and the shell comprises an inserting column and at least one end cover arranged at one axial end of the inserting column; the movable accommodating part is formed between the inserting column and the end cover and can accommodate the locking piece, and the movable accommodating part is provided with a guide channel for the bolt part to extend out of the shell. The utility model discloses a set up movable accommodation portion between inserting post and end cover, through installation space and the activity space that movable accommodation portion formed the lock piece, the placing of the lock piece spring bolt of being convenient for, through the spring bolt axial displacement who sets up end cover restriction lock piece, simultaneously, movable accommodation portion carries out radially spacingly to the spring bolt of lock piece, prevents that the lock piece from breaking away from completely and inserts the post, and through the connection cooperation of inserting post and end cover, the installation of accomplishing the lock piece simply fast is fixed.

Description

Connecting assembly, precast pile and precast pile combination

Technical Field

The utility model relates to a precast pile connects technical field, specifically is a coupling assembling. The utility model discloses still relate to one kind and be equipped with coupling assembling's precast pile with be equipped with coupling assembling's precast pile combination.

Background

During the use of the precast pile, the precast piles with different lengths are selected according to different use requirements, and a pile body with a longer length is formed by interconnecting the precast piles.

Among the prior art, through being provided with the joint chamber at a precast pile tip, the joint chamber is annular joint groove, be provided with the bayonet joint at another precast pile tip, be provided with a plurality of radial bellied elastic pins on the bayonet joint, the elastic pin card is established at the joint inslot, accomplish the butt joint of adjacent precast pile, wherein, because the last stop gear who is used for restricting the elastic pin bullet to take off that does not set up of bayonet joint, after the elastic pin is placed and is accomplished, need realize radial and vertical spacing to the elastic pin through installing the locating part many times at the stake end, just can accomplish the installation and spacing of elastic pin, lead to the elastic pin installation inconvenient. Therefore, when the elastic pin is connected with the clamping groove, the elastic pin is inconvenient to install.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coupling assembling to solve the inconvenient problem of elastic pin installation.

In order to achieve the above object, the utility model provides a following technical scheme:

a connection assembly, comprising: the locking piece is provided with at least one bolt; and a housing comprising a post and at least one end cap mounted to an axial end of the post; the movable accommodating part is formed between the inserting column and the end cover and can accommodate the locking piece, and the movable accommodating part is provided with a guide channel for the bolt to partially extend out of the shell.

Preferably, the locking piece further comprises an abutting piece which can abut against and push the bolt part out of the shell; preferably, the end cover and the plug post are fixedly installed by a fastener.

Preferably, the pushing part comprises a limiting part positioned in the movable accommodating part and an elastic part, wherein two ends of the elastic part are respectively abutted against the limiting part and the lock tongue.

Preferably, the spring bolt has the outer wedge face that keeps off the face and at least part radial extension shell, keeps off the face and is close to the post setting of inserting, and the outer wedge face is close to the end cover setting, and by inserting the post to the direction of end cover, the radial distance of outer wedge face to shell axis reduces gradually.

Preferably, the pushing part comprises a push rod axially penetrating through the end cover and extending into the movable accommodating part, and the push rod is axially pressed to push the bolt part to extend out of the shell.

Preferably, the ejector rod comprises a cylinder and a radial expansion head which is formed at one end of the cylinder and is positioned in the movable accommodating part, and the other end of the cylinder is provided with a rebound piece;

the outer peripheral surface of the radial expansion head is abutted against the lock tongue, the maximum outer diameter of the radial expansion head is larger than the minimum axial aperture of the end cover, and the axial length of the radial expansion head is smaller than the maximum axial length of the movable accommodating part;

the diameter of the outer contour of the radial expansion head is gradually increased in the axial direction from the inserting column to the end cover.

Preferably, the bolt is provided with a blocking surface, an outer wedge surface and an inner wedge surface, wherein at least part of the outer wedge surface radially extends out of the shell, the inner wedge surface is positioned in the movable accommodating part, the blocking surface is arranged close to the inserted column, and the outer wedge surface and the inner wedge surface are arranged close to the end cover;

the inner wedge surface is at least partially matched with the outer peripheral surface of the radial expansion head, the radial distance from the outer wedge surface to the central axis of the shell is gradually reduced in the direction from the inserted column to the end cover, and the outer wedge surface and the inner wedge surface are close to each other.

Preferably, the axial both ends of inserting the post all are provided with the end cover, insert the post and each be formed with the activity portion of holding corresponding locking piece between the end cover respectively, be provided with both ends respectively axial butt end cover and the elastic element of spring bolt in the activity portion of at least one end, elastic element to inserting the post and propping and pushing the spring bolt.

The utility model also provides a precast pile, which comprises a pile body, wherein at least one end surface of the pile body is provided with at least one clamping piece matched with the connecting component, and the clamping piece is provided with a locking groove for reversely clamping the spring bolt;

the clamping piece is a connecting sleeve which is embedded in the pile body and the opening of which is exposed out of the end part of the pile body, the locking groove is positioned in the connecting sleeve, and the locking groove is positioned on the inner cylinder wall of the connecting sleeve;

or, the joint spare is for being located the end plate of pile body tip, be provided with at least one socket hole on the end plate, the locking trench is located on the inner hole wall of socket hole.

The utility model also provides a precast pile combination, including two at least precast piles, and the foretell precast pile of an at least precast pile, two adjacent precast piles are fixed through at least one coupling assembling butt joint.

The utility model provides a coupling assembling includes the shell that is formed by inserting post and end cover installation, and the shell sets up the activity portion of holding between post and the end cover inserting, the activity portion of holding forms the installation space and the activity space of lock piece, be convenient for place of spring bolt in the lock piece, through setting up the axial displacement of end cover restriction spring bolt, and simultaneously, the biggest radial displacement length of activity portion of holding restriction spring bolt, prevent that the lock piece from breaking away from completely and inserting the post, in coupling assembling process, hold the intracavity at the activity of inserting the post and will insert post and end cover connection again after putting into the lock piece, can accomplish coupling assembling's equipment, need not follow-up again to the elastic pin radially with vertical spacing, help improving coupling assembling's packaging efficiency, and the assembly operation need not to go on at the pile end, do not receive the restriction of pile end installation space, make the installation of lock piece convenient fast.

Drawings

FIG. 1 is a schematic view of a connecting assembly;

FIG. 2 is an exploded view of a portion of the connection assembly of FIG. 1;

FIG. 3 is a cross-sectional view of FIG. 1;

FIG. 4 is a schematic structural view of another connecting assembly;

FIG. 5 is a schematic structural view of yet another coupling assembly;

fig. 6 is a schematic diagram of four structures of the lock tongue;

FIG. 7 is a schematic view of a further coupling assembly;

FIG. 8 is a schematic structural view of yet another coupling assembly;

fig. 9 is a schematic structural view of a connection assembly disclosed in the second embodiment of the present invention;

FIG. 10 is a partially exploded view of the connection assembly of FIG. 9;

FIG. 11 is a cross-sectional view of FIG. 9;

fig. 12 is a schematic structural view of a precast pile;

fig. 13 is a schematic structural view of another precast pile;

fig. 14 is an exploded view of a pre-pile assembly.

In the figure: 1. a clamping piece; 11. a connecting sleeve; 12. a locking groove; 13. an axial through hole; 14. an end plate;

2. inserting a column; 21. a first accommodating chamber;

3. a locking member; 31. a limiting member; 32. a latch bolt; 33. an elastic member; 34. a cylinder; 35. a radial expansion head; 36. an outer wedge surface; 37. an inner wedge surface; 38. a blocking surface; 39. a resilient member;

4. an end cap; 41. a second accommodating chamber;

5. an elastic element;

6. a first screw hole;

7. a second screw hole;

8. a bolt;

9. a threaded sleeve;

10. a pile body;

100. and (4) a stress rib.

Detailed Description

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.

In this specification, terms such as "upper, lower, inner, and outer" are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, the terms are not to be construed as absolutely limiting the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

Example one

FIG. 1 is a schematic view of a connecting assembly; FIG. 2 is an exploded view of a portion of the connection assembly of FIG. 1; FIG. 3 is a cross-sectional view of FIG. 1; FIG. 4 is a schematic structural view of another connecting assembly; FIG. 5 is a schematic structural view of yet another coupling assembly; fig. 6 is a schematic diagram of four structures of the lock tongue; FIG. 7 is a schematic view of a further coupling assembly; fig. 8 is a schematic structural view of yet another connecting assembly.

As shown in the drawings, in the first embodiment, the provided connecting assembly mainly includes a locking member 3 and a housing, the locking member 3 has four locking tongues 32 circumferentially spaced along the housing, of course, the number of the locking tongues 32 may also be one, two, three, or even more than four, in the connecting assembly provided by the present invention, the locking member 3 has at least one locking tongue 32. The shell comprises a plug column 2 and at least one end cover 4 arranged at one axial end of the plug column 2, the end cover 4 and the plug column 2 are detachably arranged and fixed through a fastener, and the fastener can be a bolt 8.

As a key technology of this embodiment, a movable accommodating portion capable of accommodating the locking member 3 is formed between the plug 2 and the end cover 4, and the movable accommodating portion has a guide passage for allowing a part of the locking tongue 32 to radially extend out of the housing. In this embodiment, the guide channel on the insert column 2 extends to the outside of the insert column 2 and is communicated with the outside, and the guide channel on the end cover 4 is consistent with the extension direction of the corresponding guide channel on the insert column 2, but has a 'broken end' structure, is not directly communicated with the outside, and is used for limiting the movement of the lock tongue 32 along the direction of the guide channel. The corresponding guide channel on the plug post 2 and the guide channel on the end cover 4 form a movable accommodating part of the lock tongue 32, and the lock tongue 32 can slide out of the shell along the respective guide channel partially but not completely. This embodiment is through setting up the activity portion of holding between inserting post 2 and end cover 4, form the installation space of locking piece 3 through the activity portion of holding, be convenient for place of locking piece 3, bolt 32 axial displacement (wherein, the axial is the length direction of shell) through setting up end cover 4 restriction locking piece 3, and simultaneously, the radial displacement length (wherein, the radial width direction that is the shell) of the guide channel restriction bolt 32 that does not link up the outer wall on the end cover 4, prevent that the bolt 32 of locking piece 3 from breaking away from completely and inserting post 2, through the connection cooperation of inserting post 2 and end cover 4, simply accomplish the installation of locking piece 3 fast fixed, and end cover 4 with insert and can dismantle the connection through bolt etc. between the post 2, be convenient for change the locking piece 3 of damage, guarantee the normal use of locking piece 3.

Further, as shown in fig. 1-3, in this embodiment, both axial ends of the plug post 2 are provided with end caps 4, both axial ends of the plug post 2 are provided with first accommodating cavities 21, each first accommodating cavity 21 has 4 guide grooves arranged at intervals along the circumferential direction of the plug post 2, in order to facilitate that each lock tongue 32 of the lock member 3 partially extends out of the housing, each guide groove penetrates through the outer circumferential wall of the plug post 2, each end cap 4 is provided with a second accommodating cavity 41, each second accommodating cavity 41 has 4 limit grooves arranged at intervals along the circumferential direction of the end cap 4, the limit grooves and the guide grooves are in one-to-one correspondence, in order to prevent each lock tongue 32 of the lock member 3 from completely slipping out of each guide groove, the limit grooves do not penetrate through the outer circumferential wall of the end cap 4, the limit grooves are used for radially limiting the lock tongues 32, the first accommodating cavities 21 and the second accommodating cavities 41 are combined to form movable accommodating portions for accommodating the lock members 3, the limiting groove and the guide groove form a guide channel for the bolt part to extend out of the shell. The outer wedge surface 36 of the latch tongue 32 may partially extend out of the housing when not subjected to radial pressure directed toward the center of the housing, and the latch tongue 32 may fully radially retract into the housing when subjected to radial pressure directed toward the center axis of the housing.

As shown in fig. 1 to 3, in this embodiment, the number of the guide grooves is four, and the limiting grooves correspond to the lock tongues 32 one to one. The quantity of guide way can be one, two, three, four etc. preferably, the quantity of guide way is two, and two guide ways set up relatively in the horizontal direction, can guarantee that the spring bolt 32 atress is even when the block, can save the raw materials to a certain extent again. It can be understood that, in other specific embodiments, the limiting groove and the guiding groove may not be provided, or only one of the limiting groove and the guiding groove may be provided, only the effective connection between the post 2 and the end cover 4 is ensured, and the locking tongue 32 may partially extend out of the housing, and the specific shape and structure are not limited.

Further, in this embodiment, the locking member 3 further includes a pushing member capable of pushing the lock tongue 32 to push out of the housing, the pushing member in this embodiment includes a limiting member 31 located in the movable accommodating portion and an elastic member 33 having two ends respectively abutting against the limiting member 31 and the lock tongue 32, the elastic member 33 pushes the lock tongue 32 to extend out of the housing, and the elastic member 33 is a spring, an air spring, an elastic rubber pad or other elastic members. Wherein, in this embodiment, the locating part 31 is located the middle part of activity portion of holding and inserts the tip fixed connection of post 2, and the one end and the locating part 31 butt of elastic component 33, the other end and the tongue 32 butt that corresponds, wherein, for the convenience of elastic component 33's installation, the terminal surface that locating part 31 and tongue 32 set up relatively all is provided with spacing arch (not drawn in the figure), and spacing arch is used for the installation of elastic component 33 and restricts the elastic component 33 axial runout. The bolt 32 has an outer wedge surface 36 and a stop surface 38, which at least partially radially extend out of the housing, and the stop surface 38 is axially away from the end cover 4 for clamping; the outer wedge surface 36 is an outer peripheral surface of the latch tongue 32, and a radial distance from the outer wedge surface 36 to the central axis of the housing is gradually reduced in a direction from the post 2 to the end cover 4, preferably, an included angle between the outer wedge surface 36 and a radial direction (where the radial direction is a width direction of the housing) is 45 degrees, wherein, in order to improve tensile strength of the latch tongue 32, as shown in fig. 6(a), a radial distance from an outer side surface (i.e., an outer surface facing away from the central axis of the housing) of the latch tongue 32 to the central axis of the housing is at least partially the same.

Furthermore, in the above embodiment, in order to ensure that the lock tongue 32 has a certain axial floating space, and ensure that the blocking surface 38 of the lock tongue 32 can be reversely clamped in the socket passage so that the blocking surface 38 abuts against the receiving surface in the socket passage, thereby ensuring effective connection of two precast piles, the elastic element 5 abutting against the end cover 4 and the lock tongue 32 is axially arranged in at least one limiting groove, the elastic element 5 axially abuts against the lock tongue 32 towards the insert column 2, and by arranging the elastic element 5, the pile end surface gap of two butt-joint precast piles can be eliminated, and meanwhile, the blocking surface 38 of the lock tongue 32 is prevented from being in a tilting posture in the radial direction away from the limiting part 31, so that the anti-pulling effect is reduced, the butt joint of the precast piles is ensured, and the connection strength of the precast. The elastic element 5 in this embodiment is a spring, an air spring, an elastic rubber pad or other elastic member.

As shown in fig. 4, in one embodiment, end covers 4 are disposed at two axial ends of the insertion column 2, movable accommodating portions capable of accommodating the locking members 3 are respectively formed between the insertion column 2 and each end cover 4, and an elastic element 5 is disposed in the movable accommodating portion at one end, as shown in fig. 5, in another embodiment, the elastic elements 5 are disposed in the movable accommodating portions at two ends, and in an actual use process, the elastic elements 5 can push the locking tongue 32 to move along an axial direction of the housing, so as to change an axial position of the locking tongue 32, thereby eliminating a pile end surface gap of two pairs of precast piles, and ensuring butt joint of the precast piles.

Further, in at least one embodiment, an end cap 4 is disposed at one axial end of the insertion column 2, and the other end is connected with the precast pile by other means, such as screwing, plugging and the like, as shown in fig. 7 and 8, which are two forms that the other end of the insertion column 2 is connected with the precast pile by screwing.

In this embodiment, the connecting assembly includes: firstly, the limiting member 31 is installed in the movable accommodating part in a detachable or non-detachable installation manner; secondly, an elastic piece 33 and a lock tongue 32 are sequentially arranged in a movable accommodating part of the plug post 2, wherein the elastic piece 33 is positioned between the limiting piece 31 and the lock tongue 32; then, the bolt 8 passes through the second screw hole 7 on the end cover 4 and the first screw hole 6 on the insert column 2 in sequence, and the end cover 4 and the insert column 2 are detachably and fixedly connected, and certainly, the insert column 2 and the end cover 4 can also be fixedly connected in other modes, such as clamping and the like, and the other end of the insert column 2 repeats the above work, so that the butt joint of the connecting assembly can be completed.

This embodiment, through set up the activity portion of holding between post 2 and end cover 4 inserting, the activity portion of holding forms the installation space of locking piece 3, be convenient for place of 3 spring bolts 32 of locking piece, through setting up the spring bolt 32 axial displacement of 4 restriction locking pieces 3 of end cover, and simultaneously, the radial displacement length of activity portion of holding restriction spring bolt 32, prevent that the spring bolt 32 of locking piece 3 from breaking away from completely and inserting post 2, through the cooperation of inserting post 2 and end cover 4, it is radial and vertical spacing to need not follow-up again to spring bolt 32, in coupling assembling process, the activity of inserting post 2 holds the intracavity and puts into the locking piece after will inserting post 2 and end cover 4 and connect, can accomplish coupling assembling's equipment, help improving coupling assembling's packaging efficiency, and the assembly operation need not to go on at the pile end, do not receive the restriction of pile end installation space, make the installation of locking piece convenient fast.

Example two

Fig. 9 is a schematic structural view of a connection assembly disclosed in the second embodiment of the present invention; FIG. 10 is a partially exploded view of the connection assembly of FIG. 9; fig. 11 is a cross-sectional view of fig. 9.

In the present embodiment, the same portions as those in the first embodiment are given the same reference numerals, and the same description is omitted.

As shown in the figure, the difference between the second embodiment and the first embodiment of the present invention is that, in the present embodiment, the structure of the pushing element is different from that of the first embodiment, in the present embodiment, the pushing element includes a top rod having one end axially penetrating through the end cover 4 and extending into the movable accommodating portion, and the top rod is axially pressed to push the bolt 32 and partially extend out of the housing.

Further, the carrier rod includes a column 34 and a radial expansion head 35 formed at one end of the column 34 and located in the movable accommodating portion, and a resilient member 39 is disposed at the other end of the column 34, wherein the resilient member 39 is connected to the column by a connection method in the prior art, and the resilient member 39 is a spring, an elastic sheet, or other elastic member; the outer peripheral surface of the radial expansion head 35 abuts against the inner radial peripheral surface of the lock tongue 32, the maximum outer diameter of the radial expansion head 35 is larger than the aperture of the end cover 4, and the axial length of the radial expansion head 35 is smaller than the maximum axial length of the movable accommodating part; the diameter of the outer contour of the radially enlarged head 35 is gradually increased in the axial direction from the post 2 to the end cap 4.

Furthermore, in order to facilitate the radial expansion head 35 to push the locking tongue 32 to partially extend out of the housing, the locking tongue 32 includes a blocking surface 38, an outer wedge surface 36 at least partially extending out of the housing in the radial direction, and an inner wedge surface 37 located in the movable accommodating portion, the blocking surface 38 is axially disposed away from the end cover 4, and the outer wedge surface 36 and the inner wedge surface 37 are respectively a radial outer circumferential surface and a radial inner circumferential surface of the locking tongue 32; the inner wedge surface 37 is at least partially adapted to the outer peripheral surface of the radial expansion head 35, and the radial distance from the outer wedge surface 36 to the central axis of the housing decreases gradually in the direction from the plug post 2 to the end cap 4, and the outer wedge surface 36 and the inner wedge surface 37 approach each other in the direction from the plug post 2 to the end cap 4.

Wherein, the quantity of spring bolt 32 is two at least, and preferably, in order to guarantee the reliability of connecting, spring bolt 32 symmetry sets up, and when spring bolt 32 gathered together inside the shell, the spring bolt 32 of relative setting contradicts each other, prevents that spring bolt 32 from breaking away from the normal position, guarantees spring bolt 32's normal use.

In the butt joint process of the connecting assembly in the embodiment, the bottom surface in the socket channel of the connected piece abuts against the column 34, the radial expansion head 35 on the column 34 drives the bolt 32 to move away from the axis of the inserted column 2 along the guide channel, and along with the increase of the inserting length of the inserted column 2 and the connected piece, the length of the bolt 32 extending to the shell is increased along with the increase of the inserting length of the inserted column 2 and the connected piece until the upper blocking surface 38 of the bolt 32 abuts against the bearing surface in the socket channel, so that the butt joint is completed. Of course, an elastic element may also be sleeved between the radial enlarged head 35 of the column 34 and the end cover 4, two ends of the elastic element respectively abut against the radial enlarged head 35 and the end cover 4, the spring tongue 32 is abutted and pushed by an acting force of the elastic element, so as to complete the connection between the connection assembly and the connected member, and the elastic element may be a spring, an elastic washer, an elastic rubber ring, or the like. In this embodiment, the connecting assembly includes: the locking tongue 32 is arranged in the movable accommodating part at one end of the inserted column 2, one end of the column 34 penetrates through the end cover 4, the end cover 4 is detachably and fixedly connected with the inserted column 2, and the other end of the inserted column 2 is connected with the connecting component in a butt joint mode by repeating the above work.

EXAMPLE III

Fig. 12 is a schematic structural view of a precast pile; fig. 13 is a schematic structural view of another precast pile.

In the present embodiment, the same portions as those in the first embodiment are given the same reference numerals, and the same description is omitted.

In addition to above-mentioned coupling assembling, the utility model provides a precast pile still, including pile body 10, in order to guarantee the structural strength and the joint strength of pile body 10, be provided with steel reinforcement cage in the pile body 10, steel reinforcement cage adopts reinforcing bar or rod iron or PC rod iron to form the atress muscle 100 of inside skeleton usually, and atress muscle 100 forms pre-buried main muscle cage, and wherein pre-buried main muscle cage can be for circular or square or other shapes precast pile that corresponds promptly be the precast pile of square or circular or other shapes, promptly the utility model discloses well precast pile can be the stake of square pile, tubular pile or other shapes.

Further, at least one end face of the pile body 10 is provided with a clamping piece 1 matched with the connecting component, and the clamping piece 1 is provided with a locking groove 12 for reversely clamping the lock tongue 32.

In at least one embodiment, the joint member 1 is a connecting sleeve 11 pre-embedded in the pile body 10 and having a cylindrical opening exposed at an end of the pile body 10, the locking groove 12 is located on an inner cylindrical wall of the connecting sleeve 11, an inner diameter of the locking groove 12 is greater than an inner diameter of the connecting sleeve 11, an axial through hole 13 is formed in an end of the connecting sleeve 11 away from the end of the pile body 10, and the axial through hole 13 is used for connecting the stress bar 100 on the reinforcement cage inside the pile body 10, so that the connecting sleeve 11 is effectively connected with the stress bar 100.

Except pre-burying joint 1 at pile body 10 tip, joint 1 in this embodiment still can set up on the end plate 14 that is located pile body 10 tip, be provided with at least one socket hole on the end plate 14, be provided with as above in the socket hole locking groove 12, be located on the socket hole pore wall and the internal diameter of locking groove 12 is greater than the internal diameter of socket hole, the one end that the pile body 10 tip was kept away from in the socket hole is provided with axial through hole 13, axial through hole 13 is used for connecting stress bar 100 on the inside steel reinforcement cage of pile body 10 to make end plate 14 and stress bar 100 effectively be connected.

Further, in at least one embodiment, when the end cover 4 is arranged at one axial end of the plug 2 and the other axial end is in threaded connection with the pile body 10, a stud with external threads is arranged at the end of the plug 2 connected with the pile body 10, and a threaded sleeve 9 in threaded connection with the stud is embedded at the connecting end of the pile body 10.

Or, referring to fig. 8, a screw cavity with internal threads is formed at one end of the inserted column 2 connected with the pile body 10, external threads are formed at the end of the stress bar 100, the inserted column 2 is firstly installed on the stress bar 100 in the production process of the pile body 10, then concrete is poured to embed the part of the inserted column 2 connected with the stress bar 100 into the pile body 10, and the part of the locking piece 3 and the inserted column 2 inserted into another pile body 10 is still exposed; or, a screw cavity with internal threads is arranged at one end of the inserted column 2 connected with the pile body 10, the stress bar 100 at the connecting end of the pile body 10 protrudes out of the end face of the pile body, and the end part of the stress bar 100 is provided with external threads so as to be conveniently connected with the screw cavity.

Example four

Fig. 14 is an exploded view of a pre-pile assembly.

Except above-mentioned coupling assembling and precast pile, the utility model discloses still provide a precast pile combination, including two at least foretell precast piles, two adjacent precast piles are fixed through at least one coupling assembling butt joint, and coupling assembling is above-mentioned coupling assembling.

When the connecting assembly provided by the first embodiment is adopted for butt joint, the connecting steps of two adjacent precast piles are as follows:

fixing the lower precast pile: fixing the lower precast pile when the lower precast pile is in a vertical to-be-connected state;

a connecting component mounting step: the connecting component is pressed to the clamping component 1 of the lower precast pile, in the pressing process, the lock tongue 32 abuts against the inner wall of the connecting sleeve 11 or the socket hole of the lower precast pile, the connecting sleeve 11 or the socket hole of the lower precast pile acts on the lock tongue 32 to push the lock tongue 32 to compress the elastic component 33, the lock tongue 32 is gathered in the shell, when the lock tongue 32 and the locking groove 12 of the lower precast pile are positioned on the same horizontal plane, under the action of elastic restoring force of the elastic component 33, the elastic component 33 pushes the part of the lock tongue 32 to extend out of the shell to enter the locking groove 12 of the lower precast pile, and the lock tongue 32 is clamped with the locking groove 12 of the lower precast pile to complete the connection of the connecting component and the lower precast pile;

and (3) butting upper precast piles: will go up the precast pile hoist and mount to precast pile top down, and go up the precast pile and the vertical projection coincidence of precast pile link terminal surface down, joint spare 1 on the messenger goes up the precast pile and the coupling assembling of installation on the precast pile down to corresponding, slowly falls the precast pile, and the spring bolt 32 on the coupling assembling is connected with the 1 one-to-one block of joint spare of last precast pile, and the in-process that slowly falls at last precast pile can constantly be adjusted and go up the precast pile and make joint spare 1 on it correspond with the coupling assembling that corresponds.

It can be understood that the connecting component can also be connected with the upper precast pile first, and then the butt joint of the upper precast pile and the lower precast pile is completed, or the upper precast pile is transported to the upper part of the lower precast pile, and then the connecting component is installed for butt joint. The connection operation of the connecting component and the upper precast pile is basically the same as the connection operation of the connecting component and the lower precast pile, and details are not repeated.

When the connecting assembly provided by the second embodiment is adopted for butt joint, the connecting steps of two adjacent precast piles are as follows:

fixing the lower precast pile: fixing the lower precast pile when the lower precast pile is in a vertical to-be-connected state;

a connecting component mounting step: pressing the connecting assembly to the clamping piece 1 of the lower precast pile, wherein in the pressing process, the lock tongue 32 abuts against the connecting sleeve 11 or the inner wall of the socket hole of the lower precast pile, the connecting sleeve 11 or the socket hole of the lower precast pile acts on the lock tongue 32, the lock tongue 32 gathers into the shell, the connecting assembly is continuously pressed, the rebound piece 39 abuts against the connecting sleeve 11 or the inner wall of the socket hole or the stress rib 100 of the lower precast pile, the mandril of the connecting assembly is further pressed to move towards the lock tongue 32, the radial expansion head 35 acts on the inner wedge surface 37 of the lock tongue 32, so that the part of the lock tongue 32 extends out of the shell to enter the locking groove 12, and the lock tongue 32 is clamped with the locking groove 12 to complete the connection of the connecting assembly;

and (3) butting upper precast piles: will go up the precast pile hoist and mount to precast pile top down, and go up the precast pile and the vertical projection coincidence of precast pile link terminal surface down, joint spare 1 on the messenger goes up the precast pile and the coupling assembling of installation on the precast pile down to corresponding, slowly falls the precast pile, and the spring bolt 32 on the coupling assembling is connected with the 1 one-to-one block of joint spare of last precast pile, and the in-process that slowly falls at last precast pile can constantly be adjusted and go up the precast pile and make joint spare 1 on it correspond with the coupling assembling that corresponds.

It can be understood that the connecting component can also be connected with the upper precast pile first, and then the butt joint of the upper precast pile and the lower precast pile is completed, or the upper precast pile is transported to the upper part of the lower precast pile, and then the connecting component is installed for butt joint. The connection operation of the connecting component and the upper precast pile is basically the same as the connection operation of the connecting component and the lower precast pile, and details are not repeated.

The vertical projection of the connecting end face of the upper precast pile and the lower precast pile coincides, and due to the problems of construction methods or technical levels and the like, the vertical projection coincides to be basically coincident as long as the butt joint of the connecting assembly and the clamping piece 1 is not influenced.

The precast pile composite construction that this embodiment provided is high in strength, butt joint assembly construction convenience, the popularization of the prefabricated building of being convenient for.

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

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (10)

1. A connection assembly, comprising:

the locking piece is provided with at least one bolt; and

a housing comprising a post and at least one end cap mounted to an axial end of the post;

the movable accommodating part is formed between the inserting column and the end cover and can accommodate the locking piece, and the movable accommodating part is provided with a guide channel for the bolt to partially extend out of the shell.

2. The connection assembly of claim 1, wherein the latch member further comprises an urging member for urging the latch portion out of the housing;

preferably, the end cover and the plug post are fixedly installed by a fastener.

3. The connecting assembly of claim 2, wherein the pushing member comprises a limiting member located in the movable accommodating portion and an elastic member having two ends respectively abutting against the limiting member and the lock tongue.

4. A connection assembly according to claim 1 or 2, characterised in that the bolt has a stop face and an outer wedge face which projects at least partially radially from the housing, the stop face being disposed adjacent the post and the outer wedge face being disposed adjacent the end cap, and in that the radial distance from the outer wedge face to the central axis of the housing decreases in the direction from the post to the end cap.

5. The connecting assembly of claim 2 wherein the biasing member includes a plunger extending axially through the end cap and into the movable receiving portion, the plunger being axially biased against the latch portion to extend out of the housing.

6. The connecting assembly of claim 5, wherein the ram comprises a cylinder and a radially enlarged head formed at one end of the cylinder and located in the movable receiving portion, and the other end of the cylinder is provided with a resilient member;

the outer peripheral surface of the radial expansion head is abutted against the lock tongue, the maximum outer diameter of the radial expansion head is larger than the minimum axial aperture of the end cover, and the axial length of the radial expansion head is smaller than the maximum axial length of the movable accommodating part;

the diameter of the outer contour of the radial expansion head is gradually increased in the axial direction from the inserting column to the end cover.

7. The connection assembly of claim 6, wherein the locking bolt has a blocking surface, an outer wedging surface extending at least partially radially from the housing, and an inner wedging surface located within the movable receiving portion, the blocking surface being located adjacent the stud, the outer wedging surface and the inner wedging surface being located adjacent the end cap;

the inner wedge surface is at least partially matched with the outer peripheral surface of the radial expansion head, the radial distance from the outer wedge surface to the central axis of the shell is gradually reduced in the direction from the inserted column to the end cover, and the outer wedge surface and the inner wedge surface are close to each other.

8. The connecting assembly of claim 1, wherein end caps are disposed at both axial ends of the post, a movable receiving portion is formed between the post and each end cap for receiving the corresponding locking member, and an elastic element is disposed in the movable receiving portion at least one end, and both ends of the elastic element axially abut against the end caps and the locking tongue, respectively, and the elastic element pushes the locking tongue against the post.

9. A precast pile comprises a pile body, at least one end face of the pile body is provided with at least one clamping piece matched with the connecting component in any one of claims 1 to 8, and the clamping piece is provided with a locking groove for reversely clamping the lock tongue;

the clamping piece is a connecting sleeve which is embedded in the pile body and the opening of which is exposed out of the end part of the pile body, the locking groove is positioned in the connecting sleeve, and the locking groove is positioned on the inner cylinder wall of the connecting sleeve;

or, the joint spare is for being located the end plate of pile body tip, be provided with at least one socket hole on the end plate, the locking trench is located on the inner hole wall of socket hole.

10. A precast pile combination, comprising at least two precast piles, wherein at least one precast pile is the precast pile of claim 9, and two adjacent precast piles are fixed in a butt joint manner by at least one connecting assembly.

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