CN114561937A - Prestressed pipe pile mechanical connecting piece - Google Patents
Prestressed pipe pile mechanical connecting piece Download PDFInfo
- Publication number
- CN114561937A CN114561937A CN202210207437.7A CN202210207437A CN114561937A CN 114561937 A CN114561937 A CN 114561937A CN 202210207437 A CN202210207437 A CN 202210207437A CN 114561937 A CN114561937 A CN 114561937A
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- CN
- China
- Prior art keywords
- nut
- prestressed pipe
- ferrule assembly
- pipe piles
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003780 insertion Methods 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a prestressed tubular pile mechanical connecting piece which comprises a first nut, an inserting rod component, a second nut, a clamping sleeve assembly and a middle nut, wherein the middle nut is arranged in the second nut, the clamping sleeve assembly is arranged in a cavity formed by the inner cavity of the middle nut and the second nut in a surrounding mode, one end of the inserting rod component is arranged in the inner cavity of the first nut, the other end of the inserting rod component is provided with a plug part, the outer wall of the plug part is provided with a step matching surface, the clamping sleeve assembly is provided with a plurality of locking clamps, a plurality of step grooves are formed in the locking clamps, and a step locking cavity used for preventing the plug part from being pulled out reversely is formed by the locking clamps in a surrounding mode. The plug part with the step body and the clamping sleeve can be in gapless fit, and the pulling resistance of the connecting piece can be improved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of pipe piles, in particular to a mechanical connecting piece for a prestressed pipe pile.
[ background of the invention ]
In the use process of the tubular pile, the tubular piles with different lengths are required to be selected according to different use requirements, so that the tubular piles are required to be connected with one another to form a long pile body. At present, the two ends of the existing pipe pile are provided with end plates, and the pipe pile are connected in a mode of welding the end plates with each other; or the tubular pile connecting piece is adopted to connect two or more sections of tubular piles.
After the existing tubular pile connecting piece is assembled, a gap is easy to exist between the inserted bar and the clamping sleeve, the oxidation is easy, and the pulling resistance is poor. This is because the terminal surface of tubular pile end plate can have certain inclined plane because of machining error is not level and smooth enough, and adopts a plurality of connecting pieces to fix between the end plate, and the inclined plane can cause the condition that partial connecting piece grafting cooperation is not in place, causes the inhomogeneous problem of tubular pile connecting piece atress, and resistance to plucking performance is poor.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a mechanical connecting piece for a prestressed pipe pile.
In order to achieve the purpose, the invention provides a mechanical connecting piece for a prestressed pipe pile, which comprises a first nut, a plunger component, a second nut, a ferrule assembly and a middle nut, wherein the middle nut is arranged in the second nut, the ferrule assembly is arranged in a cavity defined by an inner cavity of the middle nut and the second nut, one end of the plunger component is arranged in the inner cavity of the first nut, the other end of the plunger component is provided with a plug part, the outer wall of the plug part is provided with a step matching surface, the ferrule assembly is provided with a plurality of locking clamps, the locking clamps are internally provided with a plurality of step grooves, and the locking clamps define a step locking cavity for preventing the plug part from being pulled out reversely.
Preferably, the stepped groove is provided with a stepped surface and an inclined surface, and an included angle of 11-12 degrees is formed between a generatrix of the conical surface where the inclined surface is located and the axis of the ferrule assembly.
Preferably, the step matching surface is provided with a plurality of step bodies arranged along the insertion direction of the inserted link assembly, the outer wall of each step body is provided with a conical surface, and the generatrix of each conical surface forms an included angle of 11-12 degrees with the axis of the plug part.
Preferably, one end of the plug part is provided with a first guiding conical surface, the other end of the plug part is provided with a step matching surface, and the step matching surface is provided with 2-8 step bodies along the insertion direction of the inserted link assembly.
Preferably, 2-8 stepped grooves are arranged in the locking clip along the insertion direction of the plunger assembly.
Preferably, one end of the middle nut, which is back to the ferrule assembly, is provided with a limiting convex edge extending towards the outer ring, and the limiting convex edge abuts against the end surface of the second nut.
Preferably, one end of the middle nut, which faces the ferrule assembly, is provided with a limiting cavity for preventing the ferrule assembly from being released from the inner cavity of the second nut.
Preferably, the outer wall of the middle nut is provided with a first external thread surface, one end of the middle nut, which faces away from the ferrule assembly, is provided with a second lead-in tapered cavity, and one end of the second lead-in tapered cavity is provided with an inner hexagonal cavity.
Preferably, the cutting ferrule assembly comprises a spring and a cutting ferrule, and a plurality of locking clips which are circumferentially arranged are arranged on the cutting ferrule.
Preferably, the inserted link assembly comprises a threaded connection part, a hexagonal driving part, a connecting rod part and a plug part which are sequentially arranged along the axis direction of the inserted link assembly, the threaded connection part is installed in the first nut, and the end face of the hexagonal driving part abuts against the end face of the first nut.
The invention has the beneficial effects that: the plug part is provided with the step matching surface, and the ferrule assembly is provided with the step locking cavity, so that even if the insertion rod is not inserted in place during matching installation, the plug part can be prevented from being pulled out reversely by the locking clip with a plurality of step grooves, and the plug part and the ferrule are in gapless matching. This cooperation structure has avoided leading to the fact because of the end plate unevenness that partial connecting piece grafting cooperation is not in place, and the inhomogeneous problem of tubular pile connecting piece atress can improve the resistance to plucking performance of connecting piece.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic cross-sectional structure view of a mechanical connector for prestressed pipe piles according to the present invention;
fig. 2 is a schematic cross-sectional structure view of an inserted bar assembly of a mechanical connector for prestressed pipe piles according to the present invention;
FIG. 3 is a schematic cross-sectional view of a middle nut of a mechanical connector for prestressed pipe piles according to the present invention;
FIG. 4 is a schematic cross-sectional view of a ferrule assembly of a mechanical connector for prestressed pipe piles according to the present invention;
fig. 5 is an enlarged schematic view of a portion a of fig. 4.
[ detailed description ] embodiments
Referring to fig. 1 to 5, the mechanical connector for prestressed pipe piles of the present invention includes a first nut 1, a plunger assembly 2, a second nut 3, a ferrule assembly 4 and a middle nut 5, wherein the middle nut 5 is installed in the second nut 3, the ferrule assembly 4 is disposed in a cavity surrounded by an inner cavity of the middle nut 5 and the second nut 3, one end of the plunger assembly 2 is installed in the inner cavity of the first nut 1, the other end of the plunger assembly 2 has a plug portion 24 extending outside the first nut 1, an outer wall of the plug portion 24 has a step matching surface 242, the ferrule assembly 4 is provided with a plurality of locking clips 41, the locking clips 41 are provided with a plurality of step grooves 42, and the locking clips 41 surround a step locking cavity 400 for preventing the plug portion 24 from being pulled out reversely.
Further, referring to fig. 5, the stepped groove 42 has a stepped surface 421 and a slope 422, and a generatrix of the conical surface of the slope 422 forms an included angle of 11 ° to 12 ° with the axis of the ferrule assembly 4, which is an included angle β shown in fig. 5. The step matching surfaces 242 are provided with a plurality of step bodies arranged along the insertion direction of the plunger assembly 2, the outer walls of the step bodies are provided with conical surfaces, included angles of 11-12 degrees are formed between the generatrices of the conical surfaces and the axis of the plug part 24, and if the included angles are too large, the step bodies are higher and less, and matching gaps are easy to exist; too small an angle will affect the force.
Further, referring to fig. 2, the plunger assembly 2 includes a threaded connection portion 21, a hexagonal driving portion 22, a connecting rod portion 23 and a plug portion 24, which are sequentially arranged along an axial direction of the plunger assembly, the threaded connection portion 21 is installed in the first nut 1, and an end surface of the hexagonal driving portion 22 abuts against an end surface of the first nut 1 to perform a positioning function and have a certain sealing effect. Specifically, in this embodiment, one end of the plug portion 24 has a first guiding taper 241, and the other end has a step matching surface 242, and the step matching surface 242 has 2-8 step bodies, in the illustrated embodiment, 7 step bodies are used along the insertion direction of the plunger assembly 2. Referring to fig. 4, 2 to 8 stepped grooves 42 are disposed in the locking clip 41 along the insertion direction of the plunger assembly 2.
Further, referring to fig. 1 and 3, one end of the middle nut 5, which faces away from the ferrule assembly 4, has a limiting convex edge 54 extending towards the outer ring, and the limiting convex edge 54 abuts against an end surface of the second nut 3, so that a positioning effect is achieved, and a certain sealing effect is achieved. In this embodiment, the end of the intermediate nut 5 facing the ferrule assembly 4 is provided with a limiting cavity 52 for preventing the ferrule assembly 4 from coming out of the inner cavity of the second nut 3. The outer wall of the middle nut 5 has a first external thread surface 51 for connecting the first nut 1, the end of the middle nut 5 facing away from the ferrule assembly 4 has a second lead-in tapered cavity 53 into which the plug portion 24 can extend, and an end of the second lead-in tapered cavity 53 is provided with an inner hexagonal cavity 530.
Further, referring to fig. 4, the ferrule assembly 4 includes a spring 401 and a ferrule 402, and the ferrule 402 is provided with a plurality of circumferentially arranged locking clips 41. In this embodiment, the end of the stepped locking chamber 400 facing the middle nut 5 is further provided with a first lead-in tapered chamber 411.
The working process of the invention is as follows:
when the mechanical connecting piece for the prestressed pipe pile is assembled, firstly, the deformed steel bar 10 is respectively assembled and fixed with the first nut 1 and the second nut 3, then the inserted bar component 2 is installed in the first nut 1 until the hexagonal driving part 22 abuts against the end face of the first nut 1, then the clamping sleeve assembly 4 is placed in the second nut 3, and finally the middle nut 5 is installed in the second nut 3 until the limiting convex edge 54 abuts against the end face of the second nut 3, so that the assembly is convenient.
During the cooperation installation, insert the inner chamber of second nut 3 with first nut 1 of inserted bar subassembly 2 along the F direction shown in fig. 1, in this process, a plurality of locking clamps 41 of cutting ferrule 402 outwards expand earlier, until plug portion 24 of inserted bar subassembly 2 enters into step locking chamber 400 in, a plurality of locking clamps 41 are inwards retracted, lock plug portion 24, locking clamp 41 can be when receiving the external force of drawing, prevent plug portion 24 from deviating from in cutting ferrule assembly 4, the tensile purpose of pulling resistance of connecting piece has been improved, guarantee the joint strength between the tubular pile. Further, since the stepped mating surface 242 is provided in the plug portion 24 and the stepped locking cavity 400 is provided in the ferrule 402, even if the plug portion 24 is not properly inserted in the fitting installation, the locking clip 41 having the plurality of stepped grooves 42 can be fitted to the plug portion 24 without a gap, thereby preventing the plug portion 24 from being reversely pulled out. This step cooperation structure has avoided leading to the fact part connecting piece grafting cooperation not in place because of the end plate unevenness, and the inhomogeneous problem of tubular pile connecting piece atress can improve the resistance to plucking performance of connecting piece.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (10)
1. The utility model provides a prestressing force tubular pile mechanical connecting piece, includes first nut (1), inserted bar subassembly (2), second nut (3), cutting ferrule assembly (4) and middle nut (5), install in second nut (3) middle nut (5), cutting ferrule assembly (4) set up in the cavity that the inner chamber of middle nut (5) and second nut (3) enclosed, the one end of inserted bar subassembly (2) is installed in the inner chamber of first nut (1), its characterized in that: the other end of inserted bar subassembly (2) has plug portion (24), the outer wall of plug portion (24) has step fitting surface (242), be equipped with a plurality of locking card (41) on cutting ferrule assembly (4), set up a plurality of ladder grooves (42) in locking card (41), a plurality of locking card (41) enclose into and are used for preventing step locking chamber (400) that plug portion (24) reverse extracted.
2. The mechanical connector for prestressed pipe piles according to claim 1, wherein: the stepped groove (42) is provided with a stepped surface (421) and an inclined surface (422), and an included angle of 11-12 degrees is formed between a generatrix of the conical surface where the inclined surface (422) is located and the axis of the ferrule assembly (4).
3. A mechanical connector for prestressed pipe piles as claimed in claim 1 or 2, wherein: the step matching surfaces (242) are provided with a plurality of step bodies arranged along the insertion direction of the inserted link assembly (2), the outer walls of the step bodies are provided with conical surfaces, and included angles of 11-12 degrees are formed between generatrices of the conical surfaces and the axis of the plug part (24).
4. The mechanical connector for prestressed pipe piles according to claim 1, wherein: the plug part (24) is provided with a first guiding conical surface (241) at one end and a step matching surface (242) at the other end, and the step matching surface (242) is provided with 2-8 step bodies along the insertion direction of the plug rod component (2).
5. The mechanical connector for prestressed pipe piles as claimed in claim 1 or 4, wherein: 2-8 stepped grooves (42) are arranged in the locking clamp (41) along the insertion direction of the inserted bar assembly (2).
6. The mechanical connector for prestressed pipe piles according to claim 1, wherein: one end of the middle nut (5), which is back to the ferrule assembly (4), is provided with a limiting convex edge (54) extending towards the outer ring, and the limiting convex edge (54) is abutted against the end surface of the second nut (3).
7. The mechanical connector for prestressed pipe piles according to claim 1, wherein: and one end of the middle nut (5) facing the ferrule assembly (4) is provided with a limiting cavity (52) for preventing the ferrule assembly (4) from being separated from the inner cavity of the second nut (3).
8. The mechanical connector for prestressed pipe piles according to claim 1, wherein: the outer wall of the middle nut (5) is provided with a first outer thread surface (51), one end, back to the ferrule assembly (4), of the middle nut (5) is provided with a second leading-in conical cavity (53), and one end, facing away from the ferrule assembly (4), of the second leading-in conical cavity (53) is provided with an inner hexagonal cavity (530).
9. The mechanical connector for prestressed pipe piles according to claim 1, wherein: the clamping sleeve assembly (4) comprises a spring (401) and a clamping sleeve (402), and a plurality of locking clamps (41) which are circumferentially arranged are arranged on the clamping sleeve (402).
10. The mechanical connector for prestressed pipe piles according to claim 1, wherein: the inserted bar component (2) comprises a threaded connection part (21), a hexagonal driving part (22), a connecting rod part (23) and a plug part (24) which are sequentially arranged along the axis direction of the inserted bar component, the threaded connection part (21) is installed in the first nut (1), and the end face of the hexagonal driving part (22) is abutted against the end face of the first nut (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207437.7A CN114561937A (en) | 2022-03-04 | 2022-03-04 | Prestressed pipe pile mechanical connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210207437.7A CN114561937A (en) | 2022-03-04 | 2022-03-04 | Prestressed pipe pile mechanical connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114561937A true CN114561937A (en) | 2022-05-31 |
Family
ID=81717051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210207437.7A Pending CN114561937A (en) | 2022-03-04 | 2022-03-04 | Prestressed pipe pile mechanical connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114561937A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115961616A (en) * | 2023-03-16 | 2023-04-14 | 预则立科技发展有限公司 | Prestressed concrete pipe pile connecting piece |
-
2022
- 2022-03-04 CN CN202210207437.7A patent/CN114561937A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115961616A (en) * | 2023-03-16 | 2023-04-14 | 预则立科技发展有限公司 | Prestressed concrete pipe pile connecting piece |
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