CN220318510U - Precast pile quick connecting device - Google Patents
Precast pile quick connecting device Download PDFInfo
- Publication number
- CN220318510U CN220318510U CN202322046155.6U CN202322046155U CN220318510U CN 220318510 U CN220318510 U CN 220318510U CN 202322046155 U CN202322046155 U CN 202322046155U CN 220318510 U CN220318510 U CN 220318510U
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- sleeve
- locking
- column
- limiting
- convex ring
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- 238000007789 sealing Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000006978 adaptation Effects 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to the technical field of precast pile connection, and discloses a precast pile quick connection device, which comprises a first connection sleeve, wherein a first connection hole is formed in the upper end of the first connection sleeve; the lower end of the second connecting sleeve is provided with a second connecting hole; the connecting piece comprises a connecting column and a splicing column which is coaxial and integrated with the connecting column, and external threads are arranged on the connecting column; the lower end of the first connecting sleeve is internally provided with an internal thread, and the connecting column extends into the first connecting sleeve to form threaded connection; a limiting sleeve is arranged in the upper end of the second connecting sleeve, a locking sleeve is arranged in the limiting sleeve, a plurality of elastic locking pieces which are uniformly distributed in an inverted cone shape along the axial direction are arranged at the lower end of the locking sleeve, and a locking convex ring is arranged at the lower end of the plug-in column; the locking convex ring penetrates through the elastic locking piece, so that the lower end of the elastic locking piece is abutted against the upper surface of the locking convex ring to form locking. The utility model has the beneficial effects of convenient use and good stability.
Description
Technical Field
The utility model relates to the technical field of precast pile connection, in particular to a precast pile quick connection device.
Background
The prefabricated pile is produced into various pile forms in factory or construction site, and pile is driven, pressed or vibrated into soil with pile driving equipment. The precast pile has the characteristics of high structural strength, high construction efficiency and the like, and is very widely applied. In the actual pile sinking process, the length of a single pile cannot meet the depth requirement in many cases, so that precast piles are required to be connected one by one to be sunk into the soil until the length meets the position of the design requirement, and the process is called pile extension. In the prior art, the ends of two piles are welded in a welding mode, the piles are welded on site, time and labor are wasted, and the welding seams are easily corroded by rainwater to fail; the connecting piece and the connecting seat are directly embedded in the side face of the end part of the precast pile, the connecting piece and the connecting seat are connected by bolts during pile splicing, and the connecting piece and the connecting seat exceed the side face of the precast pile, so that pile sinking resistance is increased.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides the precast pile quick connecting device which is convenient to use and good in stability.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a precast pile quick connecting device comprises
The upper end of the first connecting sleeve is provided with a first connecting hole for connecting with the steel bars in the precast pile;
the lower end of the second connecting sleeve is provided with a second connecting hole for connecting with the steel bars in the precast pile; and
the connecting piece comprises a connecting column and a splicing column which is coaxial and integrated with the connecting column, and external threads are arranged on the connecting column;
wherein, the lower end of the first connecting sleeve is internally provided with an internal thread, and the connecting column extends into the first connecting sleeve to form threaded connection; a limiting sleeve is arranged in the upper end of the second connecting sleeve, a locking sleeve is arranged in the limiting sleeve, a plurality of elastic locking pieces which are uniformly distributed in an inverted cone shape along the axial direction are arranged at the lower end of the locking sleeve, and a locking convex ring is arranged at the lower end of the plug-in column; the locking convex ring penetrates through the elastic locking piece, so that the lower end of the elastic locking piece is abutted against the upper surface of the locking convex ring to form locking.
The first connecting hole on the first connecting sleeve is connected with the steel bars in the precast pile, and then the precast pile is poured, so that the first connecting sleeve is embedded in the precast pile, the second connecting sleeve is embedded in the precast pile after being connected with the steel bars, then the connecting piece is connected with the first connecting sleeve, and the locking sleeve and the limiting sleeve are arranged in the second connecting sleeve; when pile is spliced, only the splicing column on the connecting piece is required to be inserted into the locking sleeve in the second connecting sleeve, and at the moment, the elastic locking piece deforms to avoid and is clamped on the upper end face of the locking convex ring, so that the splicing column and the locking sleeve are locked, and quick pile splicing is realized; meanwhile, the connecting device is directly arranged on the end face of the precast pile and is directly abutted against the end face, so that the resistance of the pile sinking is not increased.
Preferably, the limiting sleeve is in threaded connection with the second connecting sleeve, an inner conical surface is arranged at the inner wall of the lower end of the limiting sleeve, an outer conical surface matched with the inner conical surface is arranged at the outer side of the locking sleeve, a plurality of ball holes are uniformly distributed in the circumferential direction of the outer conical surface, balls are arranged in each ball hole, the locking sleeve and the limiting sleeve can axially relatively displace, the outer surface of the plug-in column is a conical surface with a thin upper part and a thick lower part, and a pressure spring is arranged between the lower end of the locking sleeve and the bottom surface of the second sleeve; after the plug connector is inserted into the locking sleeve, the balls act on the conical surface of the plug post to form locking. After the elastic locking piece is locked with the locking convex ring, the ball acts on the conical surface of the plug-in column to realize double locking, so that the connection is more stable and reliable.
Preferably, an annular limiting surface is arranged at the inner wall of the lower end of the second connecting sleeve, and a limiting retainer ring is arranged at the outer side of the lower end of the locking sleeve; when the plug-in column is inserted into the locking sleeve, the locking sleeve moves along the axial direction until the limiting check ring is abutted against the annular limiting surface, and at the moment, the locking convex ring at the lower end of the plug-in column penetrates through the elastic locking piece to form locking. In order to further ensure the connection stability of the elastic locking piece and the locking convex ring, an annular limiting surface is arranged to limit the displacement of the locking sleeve, and when the locking sleeve cannot continue to displace, the locking convex ring can stably jack up the elastic locking piece and pass through the locking convex ring to be locked.
Preferably, a sealing convex ring is arranged at the position between the connecting column and the inserting column, and two annular grooves for filling sealing glue are arranged on the circumferential surface of the sealing convex ring; the lower extreme opening part of first adapter sleeve is equipped with the first groove of dodging with sealed bulge loop looks adaptation, the upper end opening part of second adapter sleeve is equipped with the second groove of dodging with sealed bulge loop looks adaptation. When pile extension is carried out, sealant is filled in the annular groove, and after pile extension, the lower end of the first connecting sleeve and the upper end of the second connecting sleeve are sealed by the sealing convex ring, so that external moisture can be prevented from penetrating into the first connecting sleeve and the second connecting sleeve from the gap.
Preferably, a plurality of positioning planes distributed along the circumferential direction are arranged on the outer surfaces of the first connecting sleeve and the second connecting sleeve. The planar setting of top surface makes first adapter sleeve, second adapter sleeve imbed in advance in the precast pile after, connects more stably, can bear bigger moment of torsion effect.
Therefore, the utility model has the beneficial effects of convenient use and good stability.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic diagram showing the connection of the present utility model to the reinforcing steel bars in the precast pile.
Fig. 4 is a cross-sectional view of fig. 3.
Fig. 5 is a schematic structural view of the connector.
Fig. 6 is a schematic structural view of the locking sleeve.
In the figure: the first connecting sleeve 1, the first connecting hole 100, the internal thread 101, the positioning plane 102, the step surface 103, the second connecting sleeve 2, the second connecting hole 200, the annular limiting surface 201, the connecting piece 3, the connecting post 30, the external thread 300, the plug post 31, the locking convex ring 310, the conical surface 311, the sealing convex ring 32, the annular groove 320, the limiting sleeve 4, the internal conical surface 400, the locking sleeve 5, the elastic locking piece 50, the external conical surface 500, the ball hole 501, the limiting retainer ring 502, the ball 51, the pressure spring 6, the reinforcing steel bar 7 and the reinforcing steel bar pier head 70.
Detailed Description
In order to make the technical problems, technical solutions and advantageous technical effects to be solved by the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and a plurality of exemplary embodiments. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
It should be appreciated that the expressions "first", "second", etc. are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying any particular order of number of technical features indicated. Features defining "first", "second" or "first" may be expressed or implied as including at least one such feature.
The quick connecting device for precast piles as shown in fig. 1 to 6 comprises a first connecting sleeve 1, wherein the upper end of the first connecting sleeve is provided with a first connecting hole 100 for connecting with a reinforcing steel bar in a precast pile; the lower end of the second connecting sleeve 2 is provided with a second connecting hole 200 for connecting with the steel bars in the precast pile; the connecting piece 3 comprises a connecting column 30 and a splicing column 31 which is coaxial and integrated with the connecting column, and external threads 300 are arranged on the connecting column 30; the lower end of the first connecting sleeve 1 is internally provided with an internal thread 101, and a connecting column stretches into the first connecting sleeve to form threaded connection; a limiting sleeve 4 is arranged in the upper end of the second connecting sleeve 2, a locking sleeve 5 is arranged in the limiting sleeve, a plurality of elastic locking pieces 50 which are uniformly distributed in an inverted cone shape along the axial direction are arranged at the lower end of the locking sleeve 5, and a locking convex ring 310 is arranged at the lower end of the inserting column 31; the locking convex ring 310 passes through the elastic locking 50 piece so that the lower end of the elastic locking piece is abutted against the upper surface of the locking convex ring to form locking.
The limiting sleeve 4 is in threaded connection with the second connecting sleeve, an inner conical surface 400 is arranged at the inner wall of the lower end of the limiting sleeve 4, an outer conical surface 500 matched with the inner conical surface is arranged at the outer side of the locking sleeve 5, a plurality of ball holes 501 are uniformly distributed in the circumferential direction of the outer conical surface, balls 51 are arranged in each ball hole, the locking sleeve and the limiting sleeve can axially relatively displace, the outer surface of the inserting column 31 is a conical surface 311 with a small upper part and a large lower part, and a pressure spring 6 is arranged between the lower end of the locking sleeve 5 and the bottom surface of the second sleeve; after the plug connector is inserted into the locking sleeve, the balls act on the conical surface of the plug post to form locking.
An annular limiting surface 201 is arranged on the inner wall of the lower end of the second connecting sleeve 2, and a limiting retainer ring 502 is arranged on the outer side of the lower end of the locking sleeve 5; when the plug-in column is inserted into the locking sleeve, the locking sleeve moves along the axial direction until the limiting check ring is abutted against the annular limiting surface, and at the moment, the locking convex ring at the lower end of the plug-in column penetrates through the elastic locking piece to form locking. Under the action of a pressure spring, when the locking convex ring moves for a certain distance (the limiting retainer ring is not contacted with the annular limiting surface at the moment), the elastic locking piece elastically deforms to enable the locking convex ring to pass through the elastic locking piece to be locked because the pressure of the pressure spring is larger than the deformation pressure of the elastic locking piece; the annular limiting surface is arranged, so that even if the elasticity of the pressure spring is small, the locking convex ring can penetrate through the elastic locking piece to be locked, and the stiffness coefficient of the pressure spring can be reduced in design.
A sealing convex ring 32 is arranged at the position between the connecting column 30 and the inserting column 31, and two annular grooves 320 for filling sealing glue are arranged on the circumferential surface of the sealing convex ring 32; the lower end opening part of the first connecting sleeve is provided with a first avoiding groove matched with the sealing convex ring, and the upper end opening part of the second connecting sleeve is provided with a second avoiding groove matched with the sealing convex ring. The outer surfaces of the first connecting sleeve 1 and the second connecting sleeve 2 are provided with a plurality of positioning planes 102 distributed along the circumferential direction, and the positioning planes can increase the circumferential torsion resistance; in some embodiments, the positioning plane does not penetrate through the first connecting sleeve (the second connecting sleeve), so that at least one end of the positioning plane forms a step surface 103, and after the positioning plane is embedded into the precast pile, the axial tensile property can be enhanced at the step surface.
The principle of the utility model is as follows, in combination with the accompanying drawings: as shown in fig. 3 and 4, the steel bars 7 of the precast pile pass through the first connecting hole and then are connected with the first connecting sleeve through the steel bar pier head 70, and similarly, the steel bars 7 in the other precast pile pass through the second connecting hole and then are connected with the second connecting sleeve through the steel bar pier head, after the precast pile is prepared, the first connecting sleeve and the second connecting sleeve are embedded into the end face of the precast pile, then the connecting piece is connected with the first connecting sleeve, and the pressure spring, the locking sleeve and the limiting sleeve are arranged in the second connecting sleeve; when pile is spliced, only the splicing column on the connecting piece is required to be inserted into the locking sleeve in the second connecting sleeve, at the moment, the elastic locking piece deforms to avoid and is clamped on the upper end face of the locking convex ring, and meanwhile, the balls act on the conical surface of the splicing column to form double locking limit.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the upper, lower, left, right, inner, outer, one end, the other end, etc. are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of more clearly describing the technical solution of the present utility model, and are not meant to indicate or imply that the device or element to be referred to must be provided with a specific direction, be configured and operated in a specific orientation, and should not be construed as limiting the present utility model.
Although specific embodiments of the utility model have been described in detail herein, they are presented for purposes of illustration only and are not to be construed as limiting the scope of the utility model. Various substitutions, alterations, and modifications can be made without departing from the spirit and scope of the utility model.
Claims (5)
1. A precast pile quick connecting device is characterized by comprising
The upper end of the first connecting sleeve is provided with a first connecting hole for connecting with the steel bars in the precast pile;
the lower end of the second connecting sleeve is provided with a second connecting hole for connecting with the steel bars in the precast pile; and
the connecting piece comprises a connecting column and a splicing column which is coaxial and integrated with the connecting column, and external threads are arranged on the connecting column;
wherein, the lower end of the first connecting sleeve is internally provided with an internal thread, and the connecting column extends into the first connecting sleeve to form threaded connection; a limiting sleeve is arranged in the upper end of the second connecting sleeve, a locking sleeve is arranged in the limiting sleeve, a plurality of elastic locking pieces which are uniformly distributed in an inverted cone shape along the axial direction are arranged at the lower end of the locking sleeve, and a locking convex ring is arranged at the lower end of the plug-in column; when the plug-in post is inserted into the locking sleeve, the locking convex ring penetrates through the elastic locking piece, so that the lower end of the elastic locking piece is abutted against the upper surface of the locking convex ring to form locking.
2. The quick connecting device for precast piles according to claim 1, wherein the limiting sleeve is in threaded connection with the second connecting sleeve, an inner conical surface is arranged at the inner wall of the lower end of the limiting sleeve, an outer conical surface matched with the inner conical surface is arranged at the outer side of the locking sleeve, a plurality of ball holes are uniformly distributed in the circumferential direction of the outer conical surface, balls are arranged in each ball hole, the locking sleeve and the limiting sleeve can axially and relatively move, the outer surface of the splicing column is a conical surface with a thin upper part and a thick lower part, and a pressure spring is arranged between the lower end of the locking sleeve and the bottom surface of the second sleeve; after the plug connector is inserted into the locking sleeve, the balls act on the conical surface of the plug post to form locking.
3. The precast pile quick connecting device according to claim 2, wherein an annular limiting surface is arranged at the inner wall of the lower end of the second connecting sleeve, and a limiting retainer ring is arranged at the outer side of the lower end of the locking sleeve; when the plug-in column is inserted into the locking sleeve, the locking sleeve moves along the axial direction until the limiting check ring is abutted against the annular limiting surface, and at the moment, the locking convex ring at the lower end of the plug-in column penetrates through the elastic locking piece to form locking.
4. The rapid precast pile connecting device according to claim 1, wherein a sealing convex ring is arranged at a position between the connecting column and the inserting column, and two annular grooves for filling sealing glue are arranged on the circumferential surface of the sealing convex ring; the lower extreme opening part of first adapter sleeve is equipped with the first groove of dodging with sealed bulge loop looks adaptation, the upper end opening part of second adapter sleeve is equipped with the second groove of dodging with sealed bulge loop looks adaptation.
5. A precast pile quick connecting device according to claim 1, wherein a plurality of positioning planes distributed along the circumferential direction are arranged on the outer surfaces of the first connecting sleeve and the second connecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322046155.6U CN220318510U (en) | 2023-08-01 | 2023-08-01 | Precast pile quick connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322046155.6U CN220318510U (en) | 2023-08-01 | 2023-08-01 | Precast pile quick connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220318510U true CN220318510U (en) | 2024-01-09 |
Family
ID=89422687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322046155.6U Active CN220318510U (en) | 2023-08-01 | 2023-08-01 | Precast pile quick connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220318510U (en) |
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2023
- 2023-08-01 CN CN202322046155.6U patent/CN220318510U/en active Active
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