CN210857199U - Concrete precast pile connecting device and concrete pile foundation - Google Patents
Concrete precast pile connecting device and concrete pile foundation Download PDFInfo
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- CN210857199U CN210857199U CN201921420148.5U CN201921420148U CN210857199U CN 210857199 U CN210857199 U CN 210857199U CN 201921420148 U CN201921420148 U CN 201921420148U CN 210857199 U CN210857199 U CN 210857199U
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Abstract
The utility model relates to a building material technical field discloses a precast concrete pile connecting device and concrete pile foundation, precast concrete pile connecting device for connect two precast concrete piles, include: the connecting locking block is pre-embedded in one end face of the concrete precast pile and comprises more than two locking blocks, the more than two locking blocks are arranged at intervals along the circumference to form locking holes, and the bottoms of the more than two locking blocks are mutually and fixedly connected; one end of the connecting pin rod is provided with a pin head matched with the lock hole, and the other end of the connecting pin rod is provided with a first connecting structure connected with the end face of another concrete precast pile. The utility model discloses the mutual fixed connection in bottom of well locking piece can prevent effectively that the locking piece from sliding and the connecting pin pole that leads to is connected the locking piece insecure with being connected, improves the connection reliability of connecting locking piece and connecting pin pole to and guarantee the reliability of concrete precast pile engineering.
Description
Technical Field
The utility model relates to a building material technical field especially relates to a precast concrete pile connecting device and concrete pile foundation.
Background
The concrete precast pile has the advantages of high structural strength, high construction efficiency and the like, and is widely applied to building foundation construction. In order to enable the concrete precast pile to be inserted into the underground deep position, more than two concrete precast piles are required to be connected in series end to end through a connecting device for use in construction. The coupling device generally includes a locking hole formed by two or more locking pieces, and a pin rod fitted to the locking hole. In the existing connecting device, each locking block is in a separated state and can move relatively, so that when the pin rod is connected with the locking block, the locking blocks in the separated state can slide relatively, and teeth on the locking blocks cannot be completely matched with the teeth of the pin rod when the pin rod is inserted, so that the connection of the concrete precast pile is unstable. After the precast pile in the concrete precast pile engineering is installed, an effective method is not available for checking whether the pin rod and the locking block are connected in place, so that great potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
Therefore, a concrete precast pile connecting device is needed to be provided for solving the technical problems that the connecting reliability of a pin rod and a locking block in the existing concrete precast pile connecting device is poor, and the potential safety hazard exists in the connection of the concrete precast pile.
To achieve the above object, the present invention provides a precast concrete pile connecting device for connecting two precast concrete piles, comprising:
the connecting locking block is pre-embedded in one end face of the concrete precast pile and comprises more than two locking blocks, the more than two locking blocks are arranged at intervals along the circumference to form locking holes, and the bottoms of the more than two locking blocks are mutually and fixedly connected;
the connecting pin rod, the one end of connecting pin rod be provided with the round pin head of lockhole looks adaptation, the other end of connecting pin rod is provided with the first connection structure of being connected with the terminal surface of another concrete precast pile.
Further, still include the spring clamp, the spring clamp encircles the periphery setting of the locking piece more than two makes the locking piece more than two can be followed the radial locking of lockhole the tapered end.
Further, still include the limiting plate, the limiting plate is fixed set up in the periphery of spring clamp, the lateral surface of spring clamp with the limiting plate offsets, the medial surface of spring clamp with the locking piece offsets.
Further, still include the shell, the shell is for surrounding connect the locking piece the spring clamp with the limiting plate periphery sets up.
Furthermore, the limiting plate is an annular metal plate with a plurality of folded edges, the plurality of folded edges extend along the depth direction of the lock hole, one of the folded edges abuts against the shell in every two adjacent folded edges, and the other folded edge abuts against the spring clamp.
Furthermore, the connecting locking block comprises four locking blocks which are uniformly distributed along the lock hole.
Furthermore, the first connecting structure is an external thread, and a threaded hole matched with the external thread is formed in the end face of the other concrete precast pile.
Furthermore, the cross section of the middle part of the connecting pin rod is in a regular hexagon shape.
Furthermore, the round pin head is the cone the lateral surface of cone is provided with the first annular tooth more than two, be provided with in the lockhole with the second annular tooth of annular barb looks adaptation.
In order to solve the technical problem, the utility model discloses still provide another technical scheme:
the utility model provides a concrete pile foundation, includes two above concrete precast piles, adjacent two concrete precast pile passes through connecting device fixed connection, connecting device is above arbitrary technical scheme concrete precast pile connecting device.
Be different from prior art, above-mentioned technical scheme is including connecting locking piece and connecting pin pole, and wherein, connect the locking piece and include more than two locking pieces, and the locking piece more than two sets up along circumference interval and forms the lockhole, and the mutual fixed connection in bottom of the locking piece more than two can realize two precast concrete pile end to end through lockhole and the cooperation of connecting pin pole. And, because the mutual fixed connection in bottom of the locking piece more than two, make the locking piece can be at lockhole radial elastic deformation promptly to can lock connecting pin pole, can effectively prevent the locking piece simultaneously again and slide and the connecting pin pole that leads to is connected insecure with connecting the locking piece, improves connecting the reliability of locking piece and connecting pin pole, and guarantees the reliability of concrete precast pile engineering.
Drawings
Fig. 1 is a schematic cross-sectional view illustrating connection of two precast concrete piles according to an embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic view of the lock block assembly of FIG. 2 shown separated from the connecting pin rod;
FIG. 4 is a schematic perspective view of the connecting lock block and connecting pin of the present embodiment;
FIG. 5 is an exploded view of an attachment lock, attachment pin and spring clip according to an embodiment;
FIG. 6 is a schematic cross-sectional view of a lock block assembly according to an embodiment;
FIG. 7 is a schematic longitudinal cross-sectional view of an embodiment of a connecting lock block;
FIG. 8 is a bottom view of an embodiment attachment lock;
FIG. 9 is a top view of an embodiment connecting lock;
description of reference numerals:
100. a connecting device;
200. prefabricating a pile by concrete;
210. an end plate;
220. an end plate;
1. a connecting pin rod;
11. a first connecting structure;
12. a pin head;
121. a first annular tooth;
13. a hexagonal cylinder;
2. a lock block assembly;
21. connecting a locking block;
211. a locking block;
212. an annular groove;
213. a lock hole;
214. cutting a seam;
215. a second ring-shaped tooth;
22. a spring clamp;
23. a limiting plate;
231. a first folded edge;
232. a second folded edge;
24. a housing;
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1 to 9, the present embodiment provides a concrete precast pile connecting device. As shown in fig. 1 and 2, in an embodiment, two precast concrete piles 200 are connected end to end by a precast concrete pile connection device 100, and fig. 2 is a partially enlarged view of a portion a of fig. 1, in which the precast concrete pile connection device 100 is disposed at opposite end surfaces of the two precast concrete piles 200, thereby fixedly connecting the two precast concrete piles. As shown in fig. 2, an end plate 210 is disposed at one end of the concrete precast pile 200, an end plate 220 is disposed at the other end of the concrete precast pile 200, the concrete precast pile connection device 100 includes a connection pin rod 1 and a lock block assembly 2, one end of the connection pin rod 1 is mechanically connected to the end plate 210 of the upper concrete precast pile 200, the lock block assembly 2 is pre-embedded inside the end plate 220 of the lower concrete precast pile 200, a through hole corresponding to the lock block assembly 2 is disposed on the end plate 220, the connection pin rod 1 can pass through the through hole to be mechanically connected to the lock block assembly 2, so that the connection pin rod 1 is fixedly connected to the lock block assembly 2, thereby fixedly connecting the two concrete precast piles 200. In order to ensure the connection strength of the concrete precast piles 200, a plurality of concrete precast pile connection devices 100 may be disposed between two concrete precast piles 200, and the plurality of concrete precast pile connection devices 100 may be uniformly distributed along the end surfaces 210 or 220 of the concrete precast piles.
As shown in fig. 3 and 4, fig. 3 is a schematic structural view of the locking piece assembly 2 separated from the connecting pin rod 1, and fig. 4 is a schematic perspective structural view of the connecting locking piece and the connecting pin rod. The locking piece assembly 2 includes a connecting locking piece 21, the connecting locking piece 21 includes more than two locking pieces 211, and the more than two locking pieces 211 are circumferentially arranged at intervals to form locking holes 213. As shown in fig. 7, a first annular tooth 215 is provided in the locking hole 213, and as shown in fig. 8, bottoms of two or more locking pieces 213 are fixedly connected to each other. Preferably, as shown in fig. 9, the connecting locking piece 21 includes four locking pieces 211, and the four locking pieces 211 are uniformly distributed along the locking hole 213.
One end (namely the bottom) of connecting pin pole 1 is provided with the round pin head 12 with lockhole 213 looks adaptation, and the periphery of round pin head 12 is provided with more than two second annular tooth 121, and second annular tooth 121 can be annular barb, and first annular tooth 213 is the annular groove with annular barb looks adaptation, and when round pin head 12 inserted lockhole 213, second annular tooth 121 meshed with the first annular tooth 215 in the lockhole 213, makes round pin head 12 lock unable the extraction in lockhole 213. The other end (i.e., the top end) of the connecting pin rod 1 is provided with a first connecting structure 11 connected with the end surface 210 of the upper concrete precast pile 200. In the present embodiment, the first connecting structure 11 of the connecting pin rod 1 is a screw, a threaded hole adapted to the screw is provided on the end surface 210 of the upper concrete precast pile 200, and the connecting pin rod 1 can be fixed to the end plate 210 connected to the upper concrete precast pile 200 by the screw being engaged with the threaded hole. When the upper precast concrete pile 200 and the lower precast concrete pile 200 are connected, the first connecting structure 11 of the connecting pin rod 1 may be connected to the end plate 210 of the upper precast concrete pile 200, and then the pin head 12 may be inserted into and locked to the locking hole 213 of the end plate 220 of the lower precast concrete pile 200, so as to fixedly connect the upper precast concrete pile 200 and the lower precast concrete pile 200.
As shown in fig. 3 to 5, in order to facilitate the threaded connection between the first connecting structure 11 of the connecting lock rod 1 and the end plate 210 of the upper precast concrete pile 200, a regular hexagonal prism is disposed at the middle section of the connecting lock rod 1, that is, the cross section of the middle section of the connecting pin rod 1 is a regular hexagon. Therefore, when the locking rod 1 is screwed with the end plate 210 of the upper precast concrete pile 200, the locking rod 1 can be screwed by a hexagonal wrench.
As shown in fig. 4 to 9, in an embodiment, the connecting locking piece 21 may be made of a hollow cylindrical metal material with one end open (i.e., the locking hole 213), the opening end of the connecting locking piece 21 is provided with two or more slits 214, and the slits 214 may extend to the middle of the connecting locking piece 21 along the depth direction of the connecting locking hole 213, so as to divide the opening end of the connecting locking piece 21 into two or more locking pieces 211, so as to connect the bottoms of the locking pieces 211 together, and so that each locking piece 211 has a certain elastic displacement range in the radial direction of the locking hole 213. When the pin head 12 of the connecting pin rod 1 is inserted into the locking hole 213, each locking piece 211 is pushed outward by the force of the second ring-shaped teeth 121 on the pin head, and then elastically retracts to tightly engage the first ring-shaped teeth 215 with the second ring-shaped teeth 121. Moreover, the bottoms of the two or more locking blocks 211 are fixedly connected with each other, so that the insecure connection between the connecting pin rod 1 and the connecting locking block 21 caused by the slippage of the locking block 213 can be effectively prevented, the connection reliability between the connecting locking block 21 and the connecting pin rod 1 is improved, and the reliability of the concrete precast pile engineering is ensured.
As shown in fig. 3 to 6, in an embodiment, the concrete precast pile connecting device 100 further includes a spring clip 22, where the spring clip 22 is disposed around an outer periphery of an upper middle portion of the connecting locking block 21, that is, the spring clip 22 is disposed around an outer periphery of two or more locking blocks 211, so that the two or more locking blocks 211 can lock the locking head 12 in a radial direction of the locking hole 213. The spring clamp 22 can increase the locking force of the connecting lock block 21 toward the center of the locking hole 213 in the lock block 211, and can also reduce the gap between the second annular tooth 121 and the first annular tooth 215, thereby increasing the engaging strength of the connecting pin rod 1 and the connecting lock block and preventing the pin head 12 from falling off from the locking hole 213.
As shown in fig. 5, in order to facilitate the installation of the spring clip 22, the outer circumference of the joint lock piece 21 is further provided with an annular groove 212. An annular groove 212 is recessed from the side of the connector lock block, and the width of the annular groove 212 may be slightly greater than the width of the spring clip 22. The annular groove 212 can limit the position of the spring clamp 22 on the connecting locking block 21, so that the spring clamp 22 can always surround the periphery of each locking block 211, and the locking force of each locking block 211 is ensured.
As shown in fig. 3 and 6, in the embodiment, the lock block assembly 2 further includes a stopper plate 23. The limiting plate 23 can be an annular structure made of sheet metal, and the limiting plate 23 is an annular structure arranged on the periphery of the spring clamp 22. The outer side surface of the spring clamp 22 abuts against the limiting plate 23, and the inner side surface of the spring clamp 22 abuts against the locking block 211. Wherein, limiting plate 23 can restrict the position of spring clamp 22, prevents that spring clamp 22 and lockhole 213 are eccentric to limiting plate 23 can restrict spring clamp 22 along the radial deformation scope of lockhole 213, prevents that spring clamp 22 outwards deforms too greatly and loses elasticity.
As shown in fig. 3, the lock block assembly 2 further includes a housing 24, and the housing 24 is disposed to surround the connection lock block 21, the spring clip 22 and the limiting plate 23. Wherein, shell 24 can be made by metal material, and shell 24 can be the open-top, and the barreled structure of bottom and side seal connects locking piece 21 spring clamp 22 with limiting plate 23 all sets up in the cavity in shell 24 middle part. When the precast concrete pile 200 is manufactured, the outer shell 24 of the locking block assembly 2 (including the connecting locking block 21 therein, the spring clamp 22 and the limiting plate 23) can be fixed on the inner side surface of the end plate 220, then the end plate 220 is connected with the metal framework of the precast concrete plate 200, and finally concrete is poured, so that the locking block assembly 2 is embedded in the end plate 220. The casing 24 prevents concrete from entering the connecting lock block 21 and the spring clip 22 during casting, thereby ensuring the reliability of the lock block assembly 2.
As shown in fig. 6, the stopper plate 23 is an annular metal plate having a plurality of folded edges 231 and 232 extending in the depth direction of the locking hole 213 and protruding radially outward or inward of the locking hole 213. Of each two adjacent flaps, one flap 231 is outwardly convex so that the flap 231 abuts the housing 24, and the other flap 232 is inwardly convex so that the flap abuts the spring clip 22. In this embodiment, the limiting plate 23 has a plurality of folded edges, and the adjacent folded edges 231 and 232 are conveniently protruded along the lock in different radial directions, so that the limiting plate 23 not only has the function of limiting the spring clamp 22, but also the limiting plate 23 has a ring structure with stronger elasticity, so that the outer side of the connecting lock block 21 has stronger elastic support, and stronger engagement can be used as the pin head 12 of the connecting pin rod 1.
As shown in fig. 1 and 2, in an embodiment, a concrete pile foundation is provided, wherein the concrete pile foundation comprises more than two precast concrete piles 200, and two adjacent precast concrete piles 200 are fixedly connected by a connecting device 100, wherein the connecting device 100 is the precast concrete pile connecting device 100 according to any one of the above embodiments.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the scope of the present invention.
Claims (9)
1. The utility model provides a precast concrete pile connecting device for connect two precast concrete piles, its characterized in that includes:
the connecting locking block is pre-embedded in one end face of the concrete precast pile and comprises more than two locking blocks, the more than two locking blocks are arranged at intervals along the circumference to form locking holes, and the bottoms of the more than two locking blocks are mutually and fixedly connected;
one end of the connecting pin rod is provided with a pin head matched with the lock hole, and the other end of the connecting pin rod is provided with a first connecting structure connected with the end face of another concrete precast pile;
still include the spring clamp, the spring clamp encircles the periphery setting of two above locking pieces makes two above locking pieces can be followed the radial locking of lockhole the round pin head.
2. The concrete precast pile connecting device according to claim 1, characterized by further comprising a limiting plate, wherein the limiting plate is fixedly arranged on the periphery of the spring clamp, the outer side surface of the spring clamp abuts against the limiting plate, and the inner side surface of the spring clamp abuts against the locking block.
3. The precast concrete pile connecting device according to claim 2, further comprising a housing disposed to surround the connecting locking piece, the spring clip, and the limiting plate.
4. The concrete precast pile connecting device according to claim 3, wherein the limiting plate is an annular metal plate having a plurality of folded edges extending in a depth direction of the locking hole, and of every two adjacent folded edges, one of the folded edges abuts against the outer shell and the other folded edge abuts against the spring clamp.
5. The concrete precast pile connecting device according to claim 1, wherein the connecting locking piece comprises four locking pieces, and the four locking pieces are uniformly distributed along the locking hole.
6. The concrete precast pile connecting device according to claim 1, wherein the first connecting structure is an external thread, and the end surface of the other concrete precast pile is provided with a threaded hole adapted to the external thread.
7. The precast concrete pile connecting device according to claim 6, wherein the connecting pin rod has a regular hexagonal cross-section at a central portion thereof.
8. The concrete precast pile connecting device according to claim 1, wherein the pin head is a cone, more than two first annular teeth are arranged on the outer side surface of the cone, and second annular teeth matched with the first annular teeth are arranged in the lock hole.
9. A concrete pile foundation comprising more than two precast concrete piles, wherein two adjacent precast concrete piles are fixedly connected by a connecting device, and the connecting device is the precast concrete pile connecting device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921420148.5U CN210857199U (en) | 2019-08-29 | 2019-08-29 | Concrete precast pile connecting device and concrete pile foundation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921420148.5U CN210857199U (en) | 2019-08-29 | 2019-08-29 | Concrete precast pile connecting device and concrete pile foundation |
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| CN210857199U true CN210857199U (en) | 2020-06-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468835A (en) * | 2019-08-29 | 2019-11-19 | 福建中拓建材有限公司 | A kind of concrete precast pile attachment device and concrete pipe base |
| CN112377678A (en) * | 2020-09-30 | 2021-02-19 | 济南城建集团有限公司 | Connecting structure and fixing method for fixing underground pipe gallery pipeline |
-
2019
- 2019-08-29 CN CN201921420148.5U patent/CN210857199U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110468835A (en) * | 2019-08-29 | 2019-11-19 | 福建中拓建材有限公司 | A kind of concrete precast pile attachment device and concrete pipe base |
| CN112377678A (en) * | 2020-09-30 | 2021-02-19 | 济南城建集团有限公司 | Connecting structure and fixing method for fixing underground pipe gallery pipeline |
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