CN216339494U - Novel pile head structure - Google Patents

Abstract

The utility model discloses a novel pile head structure which is arranged at the end part of a reinforcement cage and comprises a skirt edge and an end plate; the end plates are arranged at two ends of the reinforcement cage and are coaxially arranged with the reinforcement cage, and the shape of the end plates is matched with that of the reinforcement cage; the edge of the end plate is provided with a spigot boss; the shape of the skirt edge is matched with the shape of the end plate, and one end of the skirt edge is provided with the spigot boss which is coaxial with the end plate. The novel pile head structure and the assembling method thereof can effectively solve the problem that the reinforcing cage cannot be roll-welded due to too wide skirt edges in a new production process, and further can effectively solve the problem of difficult assembly of the head and tail plates.

Description

Novel pile head structure

Technical Field

The utility model relates to the field of building engineering materials, in particular to a novel pile head structure.

Background

With the improvement of the importance degree of modern buildings and the continuous increase of the building height, higher requirements are put forward on the bearing capacity of the foundation, the natural foundation cannot better bear the load transmitted by the upper buildings, concrete piles are used as foundation piles of the foundation, and the piles are pressed into the ground by a pile pressing machine to form foundation piles, so that the upper parts of the foundation piles bear the buildings. The both ends department of most precast concrete piles has all been provided with the anchor end plate now, and this kind of anchor end plate mainly is the anchor of solving after the prestressing steel stretch-draw and is used for the precast pile later stage to connect. The anchoring end plate is generally assembled with the annular skirt edge into a whole, and the skirt edge is arranged to form a sealing effect at two ends of the pipe die when the pipe die is distributed, so that concrete materials are prevented from overflowing. And assembling a head plate and a tail plate outside the end plates, wherein the purpose of connecting the jack and the pipe die is to stretch to enable the reinforcement cage to form prestress.

At present, the traditional method is to rivet the end plate and the skirt edge into a whole in advance and then assemble the whole with a roll-welded formed reinforcement cage. In the assembling process, the waist-shaped through holes are communicated between the end plate tensioning screw holes and the counter bores for fixing the main ribs, and the error is large after the main ribs are welded in a roll mode, so that the main ribs can not be stably remained at the positions of the counter bores after penetrating into the end plates, the tensioning screw holes of the end plates can be communicated under most conditions, and the tensioning bolts in the subsequent procedures are prevented from being screwed in.

In order to assemble the end plate, the head plate and the tail plate together with the steel reinforcement cage, 4-5 workers are needed to operate simultaneously in the region, the weight of the end plate and the head plate and the tail plate is 20-35 kilograms, and the labor intensity is extremely high. Because the main reinforcement is irregularly connected into the tensioning screw hole in series, no effective and reliable equipment is available at present to realize automation and basically pure manual operation of the work.

Based on this, the shape of end plate and the connection structure of shirt rim change, are convenient for penetrate the main muscle before the seam welding stretch-draw screw and the novel end plate of counter bore mutual independence after, carry out the seam welding. The main ribs are restrained by the end plate holes at the moment, and high position precision can be kept. However, when such seam welding is performed, if a conventional end plate with a skirt is used, the spiral ribs having a skirt width within 150mm cannot be normally seam-welded.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a novel pile head structure, which improves the original structures of the end plate and the skirt edge, so that the connecting structure of the end plate and the skirt edge is changed, the problem that the reinforcing cage cannot be subjected to roll welding due to too wide skirt edge in a new production process can be effectively solved, and the problem of difficult assembly of a head plate and a tail plate can be effectively solved.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

a novel pile head structure is arranged at the end part of a reinforcement cage and comprises a skirt edge and an end plate; the end plates are arranged at two ends of the reinforcement cage and are coaxially arranged with the reinforcement cage, and the shape of the end plates is matched with that of the reinforcement cage; the edge of the end plate is provided with a spigot boss; the shape of the skirt edge is matched with the shape of the end plate, and one end of the skirt edge is provided with the spigot boss which is coaxial with the end plate.

Further, the skirt edge is cylindrical in shape; the skirt edge is sequentially provided with a horn mouth, wavy lines and an inner leg overturning edge, or the skirt edge is sequentially provided with the wavy lines and the inner leg overturning edge, or the skirt edge is sequentially provided with the horn mouth and the inner leg overturning edge; the inner flanging leg edge is arranged on the spigot boss.

Further, the skirt edge is cylindrical in shape; the skirt edge is sequentially provided with a horn mouth and raised grains, or the skirt edge is provided with the horn mouth; the other end of the horn mouth is arranged on the spigot boss.

Further, the width of the skirt is 100-200 mm.

Further, the width of the skirt is 150 mm.

Further, the end plate is the ring form, be equipped with a plurality of muscle holes of wearing on the end plate, the muscle hole of wearing runs through the end plate, the tip of wearing the muscle hole is equipped with the counter bore groove, the counter bore groove sets up with the axle center but the central line is perpendicular with wearing the muscle hole, the counter bore inslot is equipped with the ladder heavy platform of symmetry.

Furthermore, a plurality of bolt mounting holes are formed in the end plate, and tensioning threads are arranged on the inner wall of each bolt mounting hole.

Furthermore, the front side of the end plate is provided with a head-tail plate, the head-tail plate is provided with a tensioning hole, and the tensioning hole is connected with a bolt mounting hole of the end plate through a bolt.

The utility model has the beneficial effects that:

(1) in the prior art, the skirt edge is wound on the annular groove of the end plate close to the inner side of the reinforcement cage, the groove of the end plate close to one side of the reinforcement cage is eliminated, and the spigot boss is designed on one side of the end plate close to the welding surface, so that the method for mounting the skirt edge is mounted after roll welding, no skirt edge interference exists during roll welding, and normal roll welding of a plurality of rings of annular ribs at the initial section and the tail section of a roll welding machine is facilitated.

(2) The skirt edge is sleeved and pressure-welded on the end plate after roll welding, the original mode of knocking in and riveting the skirt edge to the end plate is replaced, and the automatic equipment is simple in mechanism, high in reliability and more beneficial to large-area popularization.

(3) The head and tail plates are assembled with the end plates, no main rib error interference exists, the reference is clear, the research and development difficulty of automatic equipment is reduced, full-automatic mechanical operation can be realized, and the human cost is reduced.

(3) The utility model is used as a ring of a pile type reinforcement cage production area, solves the derived problem in a new reinforcement cage production process, and provides a foundation for promoting the automatic upgrade of the whole area.

Drawings

FIG. 1 is a cross-sectional view of a skirt of the present invention (including bellmouths, corrugations and turned inside leg edges);

FIG. 2 is a perspective view of the skirt of FIG. 1;

FIG. 3 is a schematic view of the construction of another form of skirt of the present invention;

(a) the skirt edge comprises raised grains and an inner turnbuckle edge;

(b) the skirt edge comprises a bellmouth and an inner turnup leg edge;

(c) in the form that the skirt edge comprises a bell mouth;

(d) the skirt edge comprises a bellmouth and wavy lines;

FIG. 4 is a schematic perspective view of an end plate according to the present invention;

FIG. 5 is a schematic view of the end plate of the present invention engaged with a main rib;

FIG. 6 is a schematic view of a tendon passing hole and a counter sink according to the present invention;

FIG. 7 is a schematic structural view of the end plate and rebar cage assembly of the present invention;

FIG. 8 is a schematic view of a skirt press-in end plate of the present invention;

FIG. 9 is a schematic view of the skirt, end plate and reinforcement cage of the present invention after assembly;

FIG. 10 is a schematic view of a mounting head plate of the present invention;

wherein: 1. a skirt edge; 101. a bell mouth; 102. raised grains, 103, inner leg edges; 2. an end plate; 201. a spigot boss; 202. A bolt mounting hole; 203. perforating the rib holes; 204. a countersink groove;

3. a reinforcement cage; 301. a main rib; 302. a spiral rib; 4. a head plate and a tail plate; 501. a bolt; 502. screwing equipment; 503. a manipulator; 504. an inner chuck; 505. an outer chuck; 506. a reinforcement cage clamping mechanism;

the direction of the arrows in the figure is the mounting direction of the skirt.

Detailed Description

The preferred mechanisms and methods of motion realization of the present invention are further described below in conjunction with the figures and the detailed description.

As shown in fig. 1-5, a novel pile head structure is arranged at the end part of a reinforcement cage 3 and comprises a skirt edge 1 and an end plate 2.

The reinforcement cage 3 comprises a main reinforcement 301 and a spiral reinforcement 302, wherein the main reinforcement 301 is uniformly arranged on the circumference along the spiral reinforcement 302.

The end plate 2 sets up the both ends at steel reinforcement cage 3, and sets up with steel reinforcement cage 3 with the axle center, end plate 2 is the ring form, is equipped with a plurality of bolt mounting holes 202 on it for main muscle 301 on the fixed steel reinforcement cage 3, its edge is equipped with tang boss 201, is used for the fixed shirt rim 1 of installation.

Evenly distributed bolt mounting hole 202 and wear muscle hole 203 on the end plate 2, the inner wall of bolt mounting hole 202 is equipped with and is used for with the stretch-draw screw thread of stretch-draw bolt complex, wear muscle hole 203 to run through end plate 2, the tip of wearing muscle hole 203 is equipped with counter bore groove 204, counter bore groove 204 and the coaxial but perpendicular setting of central line of wearing muscle hole 203, counter bore groove 204 links to each other with the outside of end plate 2, is equipped with the ladder heavy platform in counter bore groove 204, the ladder heavy platform is the sunken form, includes two symmetrical ladder heavy platforms at least at counter bore groove 204, then ladder heavy platform, wear muscle hole 203 and the crossing some space of counter bore groove 204 just constitute a space that can hold the upset head of reinforcing bar, when the upset head of reinforcing bar passes end plate 2 along wearing muscle hole 203, after rotatory 90 degrees, reverse pullback, the upset head of reinforcing bar is arranged in on the ladder heavy platform of counter bore groove 204 promptly, because its both ends are restricted by the lateral wall of ladder heavy platform, the steel bar can not rotate towards other directions, so that the steel bar and the end plate can be assembled and clamped well and then the subsequent assembly process is carried out.

The skirt edge 1 is cylindrical in shape and can be formed by rolling and pressing strip steel or punching and forming steel plates. As shown in fig. 1-2, the formed skirt can have 3 features in sequence: a bellmouth 101, a ripple 102 and an inner cuff 103.

The skirt edge 1 and the end plate 2 are coaxially arranged, the inner flanging edge 103 of the skirt edge 1 is matched with the spigot boss 201 of the end plate 2, and the skirt edge 1 is installed and fixed on the outer ring of the end plate 2, so that an integral pile head structure of the reinforcement cage 3 is formed.

Of course, the skirt 1 is not limited to the three features, for example, as shown in fig. 3(a), only the wave pattern 102 and the inner leg edge 103 are provided on the skirt 1; as shown in fig. 3(b), only the bell mouth 101 and the inner leg edge 103 can be arranged on the skirt 1; as shown in fig. 3(c), only the bell mouth 101 can be arranged on the skirt 1; as shown in fig. 3(d), only the bell mouth 101 and the raised grains 102 can be arranged on the skirt 1; or even none of the three features described above.

The skirt width is preferably 100-200mm, more preferably 150 mm.

The front end of the end plate 2 can also be provided with a head-tail plate 4, the head-tail plate 4 is provided with a stretching hole and is connected with a bolt mounting hole 202 of the end plate 2 through a bolt 501,

the novel pile head structure is not only suitable for round cage ribs, but also suitable for special-shaped cage ribs such as square cage ribs, rhombic cage ribs and I-shaped cage ribs, and the shape of the skirt edge 1, the end plate 2 and the head and tail plate 4 can be matched with the shape of the steel reinforcement cage 3.

Preferably, skirt 1 is centered over end plate 2 from the outside.

Preferably, after the skirt edge 1 is sleeved in the end plate 2, a welding machine can uniformly apply pressure spot welding along the circumferential direction, so that the integrity of the end plate and the skirt edge is firmer.

The assembling method of the novel pile head structure specifically comprises the following steps:

1. manufacturing a skirt edge 1: the skirt is formed by rolling and pressing strip steel or by punching and pressing steel plates. The skirt after molding has mainly 3 characteristics: a horn mouth 101, raised grains 102 and an inner leg edge 103;

2. installing the end plate 2: combining the end plate 2 and the reinforcement cage 3 into a whole;

3. installing a skirt 1: the combination of the end plate 2 and the reinforcement cage is transferred to a proper position, the chuck 504 in the device is inserted into the inner hole of the end plate 2, and the end plate 2 is fixed from the inner side; the bell mouth 101 of the skirt edge 1 faces the end plate 2, aligns with the center of the end plate, and then is sleeved into the end plate from the outer side of the end plate 2 along the center by taking the bell mouth as a guide; as shown in fig. 6 and 7, the skirt 2 is pressed into place until the inner leg edge 103 of the skirt 1 reaches the spigot boss 201 of the end plate 2.

4. Welding the skirt 1: when the integrity requirement of the skirt edge 1 and the end plate 2 is high in some special pile types, after the skirt edge 1 is pressed in place, pressure spot welding is applied along the circumferential direction of the joint of the skirt edge 1 and the end plate 2, and the skirt edge 1 and the end plate 2 are welded into a whole.

5. Installation of the skirt 1 of special shape: if some pile skirt 1 has no inner flanging 103, the skirt 2 and the end plate 2 can be welded into a whole by applying pressure spot welding along the circumferential direction at the joint after the skirt is pressed into the preset position of the end plate by the same operation sequence.

6. Mounting the head board 4: as shown in fig. 10, after the skirt 1 is installed in the end plate 2, the reinforcing cage clamping mechanism 506 clamps the skirt 1 and the end plate 2, the device outer chuck 505 clamps the head and tail plates 4 and the end plate 2, and rotates the head and tail plates to align the tension holes in the head and tail plates with the bolt installation holes 202 in the end plate; the manipulator 503 is used to drive the tightening equipment 502 such as a button gun and a pneumatic hammer to grab the bolts 501 and then screw the bolts into the bolt mounting holes 202 of the end plate one by one, and finally the head and tail plate 4 and the end plate 2 are assembled to form a whole with the reinforcement cage 3.

The head and tail plate clamping mechanism 506 may be a robotic arm, the alignment detection with the hole sites of the end plates may be a visual positioning technique, and the bolt tightening device 502 may be a button gun or a pneumatic gun.

The assembling method is not limited to be suitable for the skirt edge structure of the round cage rib and the assembling mode of the skirt edge and the head and tail plates, and the reinforcing cages with the skirt edges and the head and tail plates needing to be installed, such as special-shaped cage ribs, square cage ribs, rhombic cage ribs, I-shaped cage ribs and the like, can be adopted.

The skirt installed in the assembly method is not limited to three characteristics of the bell mouth 101, the raised grains 102 and the inner leg edge 103, and if only one or two of the three characteristics are provided, even the three characteristics are not provided, the assembly method is applicable as long as the assembly method is in a sleeved mode.

Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims (8)

1. A novel pile head structure is arranged at the end part of a reinforcement cage (3), and is characterized by comprising a skirt edge (1) and an end plate (2); the end plates (2) are arranged at two ends of the reinforcement cage (3) and are coaxially arranged with the reinforcement cage (3), and the shape of the end plates (2) is matched with that of the reinforcement cage (3); a spigot boss (201) is arranged at the edge of the end plate (2); the shape of the skirt edge (1) is matched with the shape of the end plate (2), and one end of the skirt edge is provided with the spigot boss (201) which is coaxial with the end plate (2).

2. The new pile head construction according to claim 1, characterized in that the skirt (1) is cylindrical in shape; the skirt edge (1) is sequentially provided with a horn mouth (101), raised grains (102) and inner leg flanging (103), or the skirt edge (1) is sequentially provided with the raised grains (102) and the inner leg flanging (103), or the skirt edge (1) is sequentially provided with the horn mouth (101) and the inner leg flanging (103); the inner turndown edge (103) is arranged on the spigot boss (201).

3. The new pile head construction according to claim 1, characterized in that the skirt (1) is cylindrical in shape; the skirt edge (1) is sequentially provided with a bell mouth (101) and raised grains (102), or the skirt edge (1) is provided with the bell mouth (101); the opposite other end of the bell mouth (101) is arranged on the spigot boss (201).

4. The novel pile head structure of claim 1, characterized in that the width of the skirt (1) is 100-200 mm.

5. The new pile head construction according to claim 4, characterized in that the skirt (1) has a width of 150 mm.

6. The novel pile head structure of claim 1, wherein the end plate (2) is circular, a plurality of reinforcement through holes (203) are formed in the end plate (2), the reinforcement through holes (203) penetrate through the end plate (2), a counter sink groove (204) is formed in the end portion of each reinforcement through hole (203), the counter sink groove (204) and the reinforcement through holes (203) are coaxially arranged, but the center line of the counter sink groove is perpendicular to the center line of the counter sink groove, and symmetrical step counter sinks are arranged in the counter sink groove (204).

7. The novel pile head structure of claim 6, characterized in that a plurality of bolt mounting holes (202) are arranged on the end plate (2), and the inner walls of the bolt mounting holes (202) are provided with tensioning threads.

8. The novel pile head structure of claim 6, characterized in that the front side of the end plate (2) is provided with a head and tail plate (4), the head and tail plate (4) is provided with a tension hole, and the tension hole is connected with a bolt mounting hole (202) of the end plate (2) through a bolt (501).

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