CN212772324U - A connection structure for prestressed concrete tubular pile - Google Patents
A connection structure for prestressed concrete tubular pile Download PDFInfo
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- CN212772324U CN212772324U CN202021204105.6U CN202021204105U CN212772324U CN 212772324 U CN212772324 U CN 212772324U CN 202021204105 U CN202021204105 U CN 202021204105U CN 212772324 U CN212772324 U CN 212772324U
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Abstract
The utility model relates to the technical field of prestressed concrete tubular pile design, and discloses a connecting structure for a prestressed concrete tubular pile, which comprises a pile body and a pile tip, wherein the pile tip comprises a circular plate which is attached to an end plate of the pile body, and a cross-shaped connecting plate which is welded on the circular plate, fix the plectane and keep away from the rubber column on the terminal surface of connecting plate and be used for the embedding in the pile body, the central axis of rubber column is unanimous with the central axis of plectane, the through-hole has been seted up on the central axis of rubber column, the week side that the plectane one end was kept away from to the rubber column is seted up with the communicating a plurality of open slots of through-hole, set up on the connecting plate with the communicating screw hole of through-hole, screw hole female connection has the screw thread axle of tip embedding in the through-hole, the screw thread axle is located one of pile body and serves and be provided with the central axis and the unanimous.
Description
Technical Field
The utility model relates to a prestressed concrete tubular pile designs technical field, in particular to a connection structure for prestressed concrete tubular pile.
Background
The existing pile sinking method of the prestressed concrete pipe pile is divided into a hammering machine and a static pressure machine, wherein a pile pressing machine is used at a corresponding construction site, the pipe pile can be fed into the pile pressing machine, so that pile hanging is completed, a pile tip needs to be welded on an end plate at the end part of the pipe pile after pile hanging is completed, and the pipe pile is inserted into the ground through the pile tip.
At present, chinese patent with publication number CN207760850, the publication date of 24.8.2018 discloses a tubular pile stake point, including stake point main part, it is top, screw hole, shell, screw rod, support frame, main tributary vaulting pole, the end cover, first arc, the slider, spring and second arc, stake point main part bottom is provided with top, top is provided with the shell, the inside support frame that is provided with of shell, the shell top is provided with the end cover, spout top both sides all are provided with first arc, link to each other through the spring between the first arc, first arc top surface all welds the second arc.
This kind of tubular pile stake point is provided with support frame and top, and the support frame is located inside the shell, makes shell intensity improve, and the shell is difficult for breaking, and top tip can be more convenient get into in soil, improves work efficiency, is provided with first arc and spring, and in the second arc got into the tubular pile, the first arc card of recycling was inside the tubular pile, fixed stake point main part, and the stake point is easily fixed when the welding, reduces welding time.
The pile tip of the tubular pile is acted on the first arc-shaped plate and the second arc-shaped plate through the elastic restoring force of the spring, so that the first arc-shaped plate and the second arc-shaped plate are tightly propped against the inner wall of the tubular pile, and the pile tip is limited at the lower end of the tubular pile through the friction force between the tubular pile and the first arc-shaped plate and the tubular pile; however, the pile tip is usually of a steel structure, so that the weight of the pile tip is relatively large, and the pile tip cannot be stably limited at the lower end of the tubular pile only by the elastic restoring force of the spring, and finally the pile tip can fall off during welding.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a connection structure for prestressed concrete tubular pile can be more stable with the stake point spacing at the tubular pile lower extreme.
The above technical purpose of the present invention can be achieved by the following technical solutions: a connecting structure for a prestressed concrete pipe pile comprises a pile body and a pile tip, wherein the pile tip comprises a circular plate attached to an end plate of the pile body, a cross-shaped connecting plate welded to the circular plate, and a rubber column fixed to the end surface of the circular plate far away from the connecting plate and embedded into the pile body, the central axis of the rubber column is consistent with that of the circular plate, a through hole is arranged on the central axis of the rubber column, a plurality of open slots communicated with the through holes are arranged on the peripheral side of one end of the rubber column away from the circular plate, threaded holes communicated with the through holes are arranged on the connecting plate, the threaded shaft is connected with the end part of the threaded shaft embedded in the through hole in a threaded manner, the locking shaft with the central axis consistent with the central axis of the threaded shaft is arranged at one end of the threaded shaft in the pile body, and the outer diameter of the locking shaft gradually decreases towards one side close to the threaded shaft.
The utility model discloses a further set up to: the end of the threaded shaft, which is far away from the locking shaft, is conical.
The utility model discloses a further set up to: and an operation hole is formed in the side wall of one end, far away from the locking shaft, of the threaded shaft.
The utility model discloses a further set up to: a plurality of L-shaped drag hooks embedded in the rubber column are arranged on the circular plate.
To sum up, the utility model discloses following beneficial effect has:
1. when the pile tip needs to be welded on the end plate of the pile body, the rubber column on the circular plate is firstly embedded in the pile body, then the screw shaft is rotated, the threaded shaft moves towards one side far away from the pile body, the threaded shaft can drive the locking shaft to move towards the through hole, then the small end of the locking shaft can be embedded into the through hole, the outer wall of the locking shaft can be tightly propped against the inner wall of the through hole along with the gradual embedding of the locking shaft, so that the inner wall of the through hole is expanded, the rubber column can be expanded at the position of the opening groove, and then the peripheral outer wall of the rubber column can be tightly propped against the inner wall of the pile body, the rubber column is made of rubber materials, so that the friction coefficient is large, large friction force can be generated between the rubber column and the inner wall of the pile body, the rubber column can be tensioned in the pile body by means of the friction force, and the pile tip can be stably limited at the lower end of the tubular pile;
2. one end of the threaded shaft, which is far away from the locking shaft, is conical, so that the sinking of the pile tip in soil is facilitated;
3. when the threaded shaft needs to be rotated, the threaded shaft can be rapidly rotated after rod-shaped equipment such as a screwdriver and the like penetrates through the operating hole by utilizing the operating hole formed in the side wall of one end, far away from the locking shaft, of the threaded shaft
4. Utilize a plurality of drag hooks that set up on the plectane, a plurality of drag hooks can be used for the embedding in the rubber column, can increase the connection stability between rubber column and the plectane through the drag hook this moment, reduce the possibility that takes place to break away from between rubber column and the plectane.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a structural sectional view of the present invention.
Reference numerals: 1. a pile body; 2. pile tip; 21. a circular plate; 211. pulling a hook; 22. a connecting plate; 221. a threaded hole; 23. a rubber column; 231. a through hole; 232. an open slot; 3. a threaded shaft; 31. an operation hole; 4. and (4) locking the shaft.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A kind of connection structure used for prestressed concrete pipe pile, refer to fig. 1, fig. 2, this kind of connection structure used for prestressed concrete pipe pile includes pile body 1 and pile tip 2, among them the pile tip 2 includes the circular plate 21, joint plate 22 and rubber column 23, among them the circular plate 21 is used for laminating on the end plate of the pile body 1, and need to weld the peripheral side of the circular plate 21 on the end plate of the pile body 1 after the pile tip 2 is inserted with the pile body 1; meanwhile, the connecting plate 22 is welded on the circular plate 21, and the connecting plate 22 is cross-shaped, wherein the rubber column 23 is adhered on the end face of the circular plate 21 far away from one end of the connecting plate 22, the rubber column 23 is embedded in the pile body 1, and the rubber column 23 is in clearance fit with the inner wall of the pile body 1.
Referring to fig. 1 and 2, a plurality of L-shaped drag hooks 211 embedded in the rubber column 23 are welded on the circular plate 21, the drag hooks 211 are uniformly distributed along the circumferential side of the circular plate 21 at intervals, and the drag hooks 211 are used for enhancing the connection stability between the circular plate 21 and the rubber column 23; the central axis of the rubber column 23 is the same as the central axis of the circular plate 21, a through hole 231 is formed in the central axis of the rubber column 23, a plurality of open grooves 232 communicated with the through hole 231 are formed in the peripheral side of one end, away from the circular plate 21, of the rubber column 23, and the open grooves 232 are evenly distributed along the peripheral side of the rubber column 23 at intervals.
Referring to fig. 1 and 2, a threaded hole 221 communicated with the through hole 231 is formed in the connecting plate 22, the inner diameter of the threaded hole 221 is smaller than that of the through hole 231, a threaded shaft 3 with an end portion embedded in the through hole 231 is connected with the threaded hole 221 in an internal thread manner, a locking shaft 4 with a central axis consistent with that of the threaded shaft 3 is welded at one end of the threaded shaft 3 in the pile body 1, the outer diameter of the locking shaft 4 gradually decreases towards one side close to the threaded shaft 3, the outer diameter of the small end of the locking shaft 4 is consistent with that of the threaded shaft 3, and the outer diameter of the large end of the locking shaft 4 is larger than that of the through hole 231; wherein, the end of the threaded shaft 3 far away from the locking shaft 4 is conical, and the side wall of the end of the threaded shaft 3 far away from the locking shaft 4 is provided with an operation hole 31.
The principle is as follows: when the pile tip 2 needs to be welded on the end plate of the pile body 1, firstly the rubber column 23 on the circular plate 21 is embedded in the pile body 1, then the threaded shaft 3 is rotated to enable the threaded shaft 3 to move towards one side far away from the pile body 1, at the moment, the threaded shaft 3 can drive the locking shaft 4 to move towards the through hole 231, then the small end of the locking shaft 4 can be embedded in the through hole 231, along with the gradual embedding of the locking shaft 4, the outer wall of the locking shaft 4 can be tightly abutted against the inner wall of the through hole 231, so that the inner wall of the through hole 231 is expanded, at the moment, the rubber column 23 can be expanded at the position of the open slot 232, then the outer wall of the peripheral side of the rubber column 23 can be tightly abutted against the inner wall of the pile body 1, because the rubber column 23 is made of rubber material, the rubber column has a large friction coefficient, at the moment, a large friction force can be generated between the rubber column 23 and the inner wall of the pile, at the moment, the pile tip 2 can be more stably limited at the lower end of the tubular pile.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a connection structure for prestressed concrete tubular pile, includes pile body (1) and stake point (2), its characterized in that: stake point (2) including be used for laminating plectane (21) on pile body (1) end plate, welding and be criss-cross connecting plate (22) on plectane (21), fix and keep away from on plectane (21) the terminal surface of connecting plate (22) and be used for embedding rubber column (23) in pile body (1), the central axis of rubber column (23) is unanimous with the central axis of plectane (21), set up through-hole (231) on the central axis of rubber column (23), the week side of plectane (21) one end is kept away from in rubber column (23) is seted up with through-hole (231) communicating a plurality of open slots (232), set up on connecting plate (22) with through-hole (231) communicating screw hole (221), screw hole (221) female connection has tip embedding screw shaft (3) in through-hole (231), screw shaft (3) are located one of pile body (1) and are provided with central axis and are unanimous locking shaft (4) of screw shaft (3) the central ) The outer diameter of the locking shaft (4) is gradually reduced towards one side close to the threaded shaft (3).
2. The connection structure for a prestressed concrete pipe pile according to claim 1, wherein: and one end of the threaded shaft (3) far away from the locking shaft (4) is conical.
3. The connection structure for a prestressed concrete pipe pile according to claim 1, wherein: an operation hole (31) is formed in the side wall of one end, far away from the locking shaft (4), of the threaded shaft (3).
4. The connection structure for a prestressed concrete pipe pile according to claim 1, wherein: the circular plate (21) is provided with a plurality of L-shaped draw hooks (211) which are embedded in the rubber column (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021204105.6U CN212772324U (en) | 2020-06-24 | 2020-06-24 | A connection structure for prestressed concrete tubular pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021204105.6U CN212772324U (en) | 2020-06-24 | 2020-06-24 | A connection structure for prestressed concrete tubular pile |
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| Publication Number | Publication Date |
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| CN212772324U true CN212772324U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021204105.6U Active CN212772324U (en) | 2020-06-24 | 2020-06-24 | A connection structure for prestressed concrete tubular pile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116024964A (en) * | 2022-09-05 | 2023-04-28 | 广东鸿业管桩有限公司 | Pencil pile |
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2020
- 2020-06-24 CN CN202021204105.6U patent/CN212772324U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116024964A (en) * | 2022-09-05 | 2023-04-28 | 广东鸿业管桩有限公司 | Pencil pile |
| CN116024964B (en) * | 2022-09-05 | 2023-09-19 | 广东鸿业管桩有限公司 | Pencil pile |
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