CN218060284U - Upper connecting piece, lower connecting piece and connecting assembly - Google Patents

Abstract

The utility model relates to an upper connecting piece, which comprises a first plate, wherein a plurality of first lock rib holes and first threaded holes are arranged on the first plate; the plug-in component is fixed on the first plate and comprises an upper half portion and a lower half portion, the inner end face of the first plate is exposed at the upper half portion of the plug-in component, and the outer end face of the first plate is exposed at the lower half portion of the plug-in component. Still relate to a lower connecting piece, including the second plate, be equipped with a plurality of second lockrib holes and second screw hole on the second plate, still be equipped with the centre bore on the second plate, the interior terminal surface of second plate is fixed with the box body that has the cavity, the centre bore with the cavity intercommunication of box body. It also relates to a connecting assembly having the aforementioned upper and lower connecting members. During pile splicing, the lower half part of the plug-in piece can penetrate through the central hole and then be inserted into the cavity of the box body, and fillers such as concrete and the like are poured into the cavity, so that the mechanical properties such as tensile strength, shearing resistance and the like of the connecting position of the concrete pile can be greatly improved.

Description

Upper connecting piece, lower connecting piece and connecting assembly

Technical Field

The utility model belongs to the technical field of the pile foundation engineering of all kinds of building structure systems, especially, relate to an last connecting piece that concrete member used, the utility model discloses still relate to a lower connecting piece that concrete member used to and the coupling assembling that kind concrete member used. The concrete member may be a solid square pile, a hollow square pile, a pipe pile, or the like.

Background

The pile body both ends of concrete pile generally all are equipped with the connecting piece (also called end plate), and the connecting piece can increase the intensity at concrete pile both ends, also conveniently connects the stake simultaneously, and the mode of connecing of current concrete pile adopts manual welding end plate to realize mostly, during the pile connection, with the end plate laminating of two adjacent concrete piles, the end plate welding that rethread welding will laminate each other is in the same place. The welding mode pile splicing has the biggest advantages that the construction cost is low, but manual welding is easily influenced by human factors and weather, the welding quality is not stable enough, potential safety hazards exist, in addition, after the piles are welded, the piles can be continuously sunk by naturally cooling for 8-10 minutes, a large amount of time is wasted, and the construction efficiency is influenced.

Therefore, the inventor has invented a mechanical pile splicing structure adopting concave-convex plates, for example, the Chinese patent application with the application number of CN201210418614.2 (with the publication number of CN 103790156A) discloses a square concave-convex plate mechanical pile splicing method for prefabricating a square pile, and discloses a pile splicing structure. The pile splicing mode increases a concave-convex butt joint structure so as to increase the pile splicing strength, but the depth of concave-convex butt joint is at most the same as the thickness of the end plate, so that the mutual bonding strength is insufficient; in addition, one end plate is provided with a central through hole, the central through hole of the end plate needs to be blocked by a blocking plate in advance when the mold is manufactured, and the blocking plate is taken down after the molding is finished; furthermore, the two end plates are complex to process, a boss needs to be milled on the T-shaped end plate, a first groove used for pile extension needs to be milled on the periphery of the boss, a concave cavity needs to be milled on the concave-shaped end plate, a through hole is cut on the bottom surface of the concave cavity, a second groove used for pile extension needs to be milled on the inner peripheral wall of the concave cavity, and finally a shear-resistant hole is drilled. The process is very complicated and the efficiency is low. The processing cost and the material cost are high, and the feasibility of practical commercial application is basically not achieved in reality, so that the background patent is not applied to the present day.

Therefore, it is an urgent need in the art to design a concrete member connector that facilitates pile extension and ensures reliable pile extension.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that a structural design is reasonable, do benefit to the production, can set up in the tip of concrete pile and be used for connecing the last connecting piece of stake to above-mentioned prior art current situation and provide, the concrete pile that adopts this last connecting piece can ensure more firm and stable pile extension, can greatly promote mechanical properties such as tensile, the shearing of concrete pile hookup location.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: an upper connecting piece, which can be arranged at the end part of a concrete pile and is used for pile extension, is characterized in that: the first plate is provided with a plurality of first lock rib holes and first threaded holes; the first plate is fixed on the first plate, the insert comprises an upper half portion and a lower half portion, the inner end face of the first plate is exposed at the upper half portion of the insert, and the outer end face of the first plate is exposed at the lower half portion of the insert.

The plug-in components are further improved to be columnar, cover plates are arranged at two ends of the plug-in components respectively, and the cross sections of the cover plates are larger than that of the plug-in components, so that annular retaining shoulders protruding outwards in the circumferential direction are formed at two ends of the plug-in components respectively. The annular shoulder that blocks of circumference evagination that the both ends of plug-in components formed is inserting in the concrete, and the concrete solidifies the back, can three-dimensional cladding in the outside that the annular kept off the shoulder, effectively strengthens the resistance to plucking performance of plug-in components, makes promptly to go up connecting piece and concrete pile and is connected very firmly.

As an improvement, the plug-in is columnar, a containing cavity is formed inside the plug-in, fillers are filled in the containing cavity, and cover plates are arranged at two ends of the plug-in respectively. The containing cavity is filled with fillers (such as one or more of cement paste, grouting material, epoxy resin, cement mortar and concrete), the overall strength of the plug-in unit is increased, and the columnar plug-in unit is combined with the cover plates at two ends, so that the containing cavity can be formed conveniently and quickly.

In a further improvement, the outer peripheral wall of the insert has a plurality of axially spaced apart collars. The bulge loop can adopt welded mode to fix the periphery wall at plug-in components, insert the concrete when the plug-in components, the concrete solidifies the back, can three-dimensional cladding in the outside of bulge loop, increase the snap-in force of plug-in components and concrete, it is very firm to make connecting piece and concrete pile be connected promptly, during pile splicing, plug-in components insert the jack back at lower section concrete pile top, the concrete in the jack solidifies the back, can three-dimensional cladding in the outside of bulge loop, increase the snap-in force of plug-in components and concrete, further ensure more firm and stable pile splicing.

In a further improvement, a plurality of first anchoring ribs extending upwards are fixed on the first plate; with this first plate as the end plate setting at concrete pile tip, first anchor muscle can stretch into the concrete as supplementary muscle in, the mechanical properties of the intensity of the first plate and concrete pile body coupling of reinforcing and pile body tip. First lock muscle hole with first screw hole intercommunication constitutes 8 style of calligraphy holes, the aperture of first screw hole is greater than the aperture in first lock muscle hole. This 8 shape hole's first lock muscle hole makes things convenient for the rod iron of taking the pier nose to be connected with first plate, makes things convenient for the stretch-draw, simultaneously, thereby first big hole portion constitutes first screw hole for the screw hole, need not the first screw hole of extra configuration and stretch-draw board or anchor board, and the structural configuration in each hole is more reasonable.

Compared with the prior art, this connecting piece's advantage lies in: the method comprises the steps that an insert is additionally arranged on a first plate, the insert penetrates through the middle of the first plate and is fixed with the first plate, the inner end face of the first plate is exposed at the upper half part of the insert, the outer end face of the first plate is exposed at the lower half part of the insert, and when the first plate is used as an end plate of a concrete pile, the upper half part of the insert, which is exposed out of the inner end face, can be occluded with the concrete pile, so that the bonding strength of the first plate and the concrete pile is increased; in addition, can form bellied grafting portion at the lower tip of concrete pile, only need insert the cavity in the corresponding setting of the tip of the concrete pile that corresponds needs the pile extension, can insert the plug-in components in the cavity and pour the concrete in the cavity during the pile extension, and the reunion welding pile extension can greatly promote mechanical properties such as tensile, the shearing of concrete pile hookup location, compares in contrast patent and the end plate is changeed processing, and it is more convenient to connect the pile.

The utility model aims to solve the second technical problem that a structural design is reasonable, do benefit to the production, can set up in the tip of concrete pile and be used for connecing the lower connecting piece of stake, can with the supporting use of above-mentioned upper junction piece to provide one kind to above-mentioned prior art current situation, the concrete pile that adopts this lower connecting piece can ensure more firm and stable connecing the stake, can greatly promote mechanical properties such as tensile, shearing of concrete pile hookup location.

The utility model provides a technical scheme that above-mentioned second technical problem adopted is: a lower connecting piece, which can be arranged at the end of a concrete pile and used for pile extension, is characterized in that: the box body is characterized by comprising a second plate, wherein a plurality of second locking rib holes and second threaded holes are formed in the second plate, a center hole is further formed in the second plate, the inner end face of the second plate is fixedly provided with a box body with a cavity, and the center hole is communicated with the cavity of the box body.

Further improved, the aperture of the central hole is smaller than the inner diameter of the cavity of the box body. Therefore, more fillers can be poured into the cavity of the box body, the combination with the plug-in unit inserted into the cavity is firmer, in addition, the cross section area of the plug-in unit can be made as large as possible, and even if the size of the plug-in unit is the same as that of the central hole, the plug-in unit can be ensured to be sufficiently coated with concrete in the cavity; in addition, after the filler poured into the cavity is solidified, a solidified substance with the outer diameter larger than the aperture of the central hole is formed, so that the solidified substance is blocked by the second plate and is not easy to pull out or fall off, and the pulling resistance of the pile splicing part is enhanced.

In a further improvement, the outer peripheral wall of the box body is provided with a plurality of annular inner concave parts, and the inner concave parts correspondingly form annular inner convex parts on the inner peripheral wall of the box body. The inner concave part can be formed by rolling on the peripheral wall, when the box body is inserted into concrete, the concrete can be three-dimensionally penetrated into the inner concave part after being solidified, so that the engaging force between the plug-in piece and the concrete is increased, when the pile is spliced, the plug-in piece at the bottom of the upper section concrete pile is inserted into the cavity of the box body, and after the concrete in the cavity of the box body is solidified, the plug-in piece can be three-dimensionally coated outside the inner convex part, so that the engaging force between the box body and the concrete is increased; meanwhile, after being solidified, concrete in the concrete pile body can be occluded with the inner concave part on the outer peripheral wall of the box body, so that more firm and stable pile splicing is further ensured, and the pulling resistance of the pile splicing part is greatly enhanced. In a further improvement, a plurality of second anchoring ribs extending downwards are fixed on the second plate; regard this second plate as the end plate setting at concrete pile tip, in the second anchor muscle can stretch into the concrete as supplementary muscle, the mechanical properties of the intensity of the first plate of reinforcing and concrete pile body coupling and pile body tip. The second lock rib hole is an 8-shaped hole with a second large hole part and a second small hole part, wherein the second large hole part is a threaded hole to form the second threaded hole. This second lock muscle hole in 8 word shape hole makes things convenient for the rod iron of taking the pier nose to be connected with the second plate, makes things convenient for the stretch-draw, and simultaneously, thereby the big hole portion of second constitutes the second screw hole for the screw hole, need not additionally to dispose and stretch-draw plate or the second screw hole of anchor board, and the structural configuration in each hole is more reasonable.

Compared with the prior art, the connecting piece has the advantages that: a box body with a cavity is fixed on the inner end face of the second plate, the central hole is communicated with the cavity of the box body, and when the second plate is used as an end plate of a concrete pile, the box body can be occluded with concrete in the concrete pile, so that the bonding strength of the second plate and the concrete pile is increased; in addition, can form the cavity that the indent got into the concrete pile in the upper end of concrete pile, only need be corresponding in the lower tip that corresponds the concrete pile that needs the pile extension and set up plug-in components, can insert the cavity and pack the concrete in the cavity during the pile extension to with plug-in components solidification in the box body, the reunion welding pile extension, can greatly promote concrete pile hookup location's mechanical properties such as tensile, shearing, compare in the contrast patent and change processing of end plate, it is more convenient to connect the pile.

The utility model aims to solve the third technical problem that provide a structural design is reasonable, do benefit to the production, can set up in the tip of concrete pile and be used for the coupling assembling that connects the stake to above-mentioned prior art current situation, this coupling assembling effectively combines above-mentioned upper junction spare and lower connecting piece together, and the concrete pile that adopts this coupling assembling can ensure more firm and stable pile that connects, can greatly promote mechanical properties such as tensile, the shearing of concrete pile hookup location.

The utility model provides a technical scheme that above-mentioned third technical problem adopted does: a connector assembly comprising the upper connector and the lower connector, wherein the lower half of the insert is insertable into the cavity of the housing from the central bore of the lower connector.

Compared with the prior art, this coupling assembling's advantage lies in: this pile extension subassembly can locate the concrete tip with last connecting piece and lower connecting piece and use as the end plate, can form the cavity that the indent got into the concrete pile in the upper end of lower section concrete pile, the corresponding plug-in components that set up of lower tip at upper section concrete pile, can insert the cavity of box body after passing the centre bore with the latter half of plug-in components during pile extension, and fill fillers such as concrete in the cavity, the reunion welding pile, can greatly promote concrete pile hookup location's tensile, mechanical properties such as shearing.

Drawings

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

FIG. 2 is a schematic perspective view of a second embodiment of a connecting assembly;

FIG. 3 is an exploded perspective view of an embodiment of the connection assembly;

fig. 4 is a sectional view illustrating a state in which an embodiment of the connecting member is installed on a concrete pile.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 4, the embodiments of the upper connecting member and the lower connecting member are also specifically developed in the embodiment of the connecting member, which is a preferred embodiment of the connecting member of the present invention.

A connecting assembly includes an upper connecting member and a lower connecting member which are provided at an end of a concrete pile 10 and used for pile extension.

The upper connecting piece in the embodiment comprises a first plate 1, wherein a plurality of first lock rib holes 11 and a plurality of first threaded holes 12 are formed in the first plate 1; a plurality of first anchoring ribs 5 extending upwards are fixed on the first plate 1; the first lock rib hole 11 and the first threaded hole 12 are communicated to form an 8-shaped hole, and the aperture of the first threaded hole 12 is larger than that of the first lock rib hole 11.

The plate type connecting structure further comprises an insert 2 fixed on the first plate 1, wherein the insert 2 comprises an upper half part 2a and a lower half part 2b, the upper half part 2a of the insert 2 exposes the inner end face of the first plate 1, and the lower half part 2b of the insert 2 exposes the outer end face of the first plate 1; in actual production, the upper half part 2a and the lower half part 2b of the plug-in unit 2 are integrally formed, penetrate through the first plate and are welded and fixed with the first plate; of course, the upper half portion 2a and the lower half portion 2b of the insert 2 may be separate bodies, and they are welded and fixed to the first plate, respectively.

Plug-in components 2 are the column, can be pipe or square pipe, and plug-in components 2 are inside to form holding chamber 21, fill filler 4 in the holding chamber 21, the both ends of plug-in components 2 are equipped with apron 3 respectively. The cross section of the cover plate 3 is larger than that of the insert 2, so that annular retaining shoulders 31 protruding outwards in the circumferential direction are respectively formed at the two ends of the insert 2. The peripheral wall of the insert 2 has a plurality of axially spaced apart collars 22.

The lower connecting piece in the embodiment comprises a second plate 6, wherein a plurality of second locking rib holes 61 and a plurality of second threaded holes 62 are formed in the second plate 6, and a plurality of second anchoring ribs 8 extending downwards are fixed on the second plate 6; the second lock rib hole 61 is communicated with the second threaded hole 62 to form an 8-shaped hole, and the aperture of the second threaded hole 62 is larger than that of the second lock rib hole 61

A box body 7 with a cavity 71 is fixedly welded on the inner end face of the second plate 6, and the central hole 63 is communicated with the cavity 71 of the box body 7. The bore diameter of the central bore 63 is smaller than the inner diameter of the cavity 71 of the cartridge body 7. The outer peripheral wall of the case 7 has a plurality of annular concave portions 72, and the concave portions 72 are formed with annular inner convex portions 73 on the inner peripheral wall of the case 7.

The lower half 2b of the insert 2 can be inserted from said central hole 63 of the lower connecting element and into the cavity 71 of the box 7.

The working principle and the process of the connecting component are as follows:

adding an insert 2 on a first plate 1, wherein the insert 2 penetrates through the middle part of the first plate 1 and is welded and fixed with the first plate 1, the inner end face of the first plate 1 is exposed from the upper half part 2a of the insert 2, the outer end face of the first plate 1 is exposed from the lower half part 2b of the insert 2, and the upper half part 2a of the insert 2 exposed from the inner end face can be occluded with a concrete pile, so that the bonding strength of the first plate 1 and the concrete pile 10 is increased; a box body 7 with a cavity 71 is fixed on the inner end face of the second plate 6, the central hole 63 is communicated with the cavity 71 of the box body 7, and when the second plate 6 is used as an end plate of the concrete pile 10, the box body 7 can be occluded with concrete in the concrete pile 10, so that the bonding strength of the second plate 6 and the concrete pile 10 is increased; the cavity 71 of the box body 7 can form a cavity which is recessed into the concrete pile 10 at the upper end part of the concrete pile 10; can be with the cavity 71 that inserts of plug-in components 2 the latter half 2b during pile extension to pack filler such as concrete in cavity 71 and make plug-in components 2 the latter half 2b solidify the parcel by the filler in cavity 71, supplementary welding process with first plate 1 and second plate 2 combination department of combining again can greatly promote mechanical properties such as tensile, the shearing of concrete pile hookup location.

It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "up, down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description of the present invention and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (10)

1. An upper connector which can be provided at the end of a concrete pile (10) and used for pile extension, characterized in that: the novel lock plate comprises a first plate (1), wherein a plurality of first lock rib holes (11) and first threaded holes (12) are formed in the first plate (1); the novel panel connector is characterized by further comprising an insert (2) fixed on the first panel (1), wherein the insert (2) comprises an upper half part (2 a) and a lower half part (2 b), the inner end face of the first panel (1) is exposed from the upper half part (2 a) of the insert (2), and the outer end face of the first panel (1) is exposed from the lower half part (2 b) of the insert (2).

2. The upper connector of claim 1, wherein: plug-in components (2) are the column, the both ends of plug-in components are equipped with apron (3) respectively, the cross section of apron (3) is greater than the cross section of plug-in components (2) to form annular fender shoulder (31) of circumference evagination respectively at the both ends of plug-in components (2).

3. The upper connector as set forth in claim 1, wherein: plug-in components (2) are the column and its inside holding chamber (21) that forms, fill filler (4) in holding chamber (21), the both ends of plug-in components (2) are equipped with apron (3) respectively.

4. A connecting member for a concrete member according to any one of claims 1 to 3, wherein: the outer peripheral wall of the insert (2) has a plurality of axially spaced apart collars (22).

5. The upper connector as set forth in claim 1, wherein: a plurality of first anchoring ribs (5) extending upwards are fixed on the first plate (1); the first lock rib hole (11) is communicated with the first threaded hole (12) to form an 8-shaped hole, and the aperture of the first threaded hole (12) is larger than that of the first lock rib hole (11).

6. A lower connecting piece, which can be arranged at the end of a concrete pile and used for pile extension, is characterized in that: including second plate (6), be equipped with a plurality of second lockrib holes (61) and second screw hole (62) on second plate (6), still be equipped with centre bore (63) on second plate (6), the interior terminal surface of second plate (6) is fixed with box body (7) that have cavity (71), centre bore (63) with cavity (71) intercommunication of box body (7).

7. The lower connector as set forth in claim 6, wherein: the aperture of the central hole (63) is smaller than the inner diameter of the cavity (71) of the box body (7).

8. The lower connector as set forth in claim 6 or 7, wherein: the outer circumferential wall of the box body (7) is provided with a plurality of annular inner concave parts (72), and the inner concave parts (72) correspondingly form annular inner convex parts (73) on the inner circumferential wall of the box body (7).

9. A connecting member for a concrete member according to claim 6, wherein: a plurality of second anchoring ribs (8) extending downwards are fixed on the second plate (6); the second lock rib hole (61) is communicated with the second threaded hole (62) to form an 8-shaped hole, and the aperture of the second threaded hole (62) is larger than that of the second lock rib hole (61).

10. A connecting assembly, comprising an upper connecting element according to any one of claims 1 to 5 and a lower connecting element according to any one of claims 6 to 9, the lower half (2 b) of the insert (2) being insertable through the central opening (63) of the lower connecting element and into the cavity (71) of the box (7).

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