CN212248225U - Flange mechanical joint for concrete pile - Google Patents
Flange mechanical joint for concrete pile Download PDFInfo
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- CN212248225U CN212248225U CN202020672063.2U CN202020672063U CN212248225U CN 212248225 U CN212248225 U CN 212248225U CN 202020672063 U CN202020672063 U CN 202020672063U CN 212248225 U CN212248225 U CN 212248225U
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Abstract
The utility model provides a flange mechanical joint for concrete pile, which comprises an inner cylindrical hollow device, wherein the upper end of the inner cylindrical hollow device is fixedly connected with the bottom surface of an upper end plate, and the lower end of the inner cylindrical hollow device is fixedly connected with the top surface of a lower end plate; the top surface of the upper end plate is attached to an upper pile end plate of the concrete pile, a plurality of upper connecting holes which are uniformly distributed around the axial direction are formed in the upper end plate, and the upper end plate penetrates through the upper connecting holes through upper locking pieces and is locked with the upper pile end plate; the top surface of the lower end plate is attached to the lower pile end plate of the concrete pile, a plurality of lower connecting holes which are uniformly distributed around the axial direction are arranged on the lower end plate, and the lower end plate penetrates through the lower connecting holes through a lower locking piece to be locked with the lower pile end plate; the riser is including a plurality of, and a plurality of risers are all located between upper end plate and the lower end plate, and every two adjacent risers and the bottom surface that is located the upper end plate between two adjacent risers, the top surface of lower end plate and the lateral surface of interior cylinder form into an independent one end open-ended installation space. The mechanical joint has the advantages of simple structure, convenient construction and reliable connection.
Description
Technical Field
The utility model relates to a building prestressing force technical field, in particular to flange mechanical joint for concrete pile.
Background
The prestressed concrete pile is mostly round and square in appearance, is a prefabricated pile type which is more applied in China from the end of the 80 s in the 20 th century, and has quite wide application in engineering due to the advantages of simple process, reliable quality, high construction speed, lower manufacturing cost, convenient detection and the like.
The existing pile splicing method of the prestressed concrete pile generally comprises two modes of welding and mechanical connection, wherein the most widely used pile splicing method is welding pile splicing. The welding pile splicing is a pile splicing mode of connecting two piles together through a welding pile end plate on site, and the mode has the advantages of simple construction, convenience in implementation and the like, but a large number of problems are exposed along with the inspection of engineering practice. Firstly, the welding pile splicing technology consumes much time, the welded pile head can continue to sink after being naturally cooled according to the regulation of building pile foundation technical specifications, the natural cooling time is not less than 8min, the procedures of welding construction and the like are considered, generally, one pile splicing needs 20-30 minutes, and the pile splicing efficiency is low; secondly, the quality of the welded pile is unstable, the welding quality of the joint is greatly influenced by the technology of a welder and the welding environment, and the welding quality is unstable; thirdly, in the actual engineering, in order to shorten the construction period, the phenomenon that the pile is continuously sunk immediately after welding is often caused, the joint is easy to quench or embrittle when meeting water, the pile is difficult to inspect after being driven into the soil layer, the defect is difficult to find, and potential safety hazard is brought to the engineering; and thirdly, the surface temperature of the welding seam is high during welding, so that the metal parts are difficult to carry out anti-corrosion treatment in advance, and the service life of the pile is difficult to guarantee.
The mechanical connection in the pile extension of the prestressed concrete pile also has more mature construction experience, and the joint form mainly comprises mechanical engagement, mechanical flanges, mechanical fastening, mechanical threads and the like. The mechanical connection is simple in operation, fast and efficient, but the problems of complex joint structure, high cost, easy aging and failure of the built-in spring, difficult construction alignment and the like generally exist, and the anti-pulling and anti-shearing capacity of the mechanical joint needs to be further improved.
Therefore, it is necessary to provide a mechanical joint for concrete piles which has a simple structure and is firmly connected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a concrete pile is with flange mechanical joint, this mechanical joint have simple structure, construction convenient, connect firm advantage.
The utility model discloses a realize through following technical scheme:
the flange mechanical joint for the concrete pile is improved in that the mechanical joint comprises a vertical plate, an upper end plate, an inner cylinder and a lower end plate, wherein the upper end plate, the inner cylinder and the lower end plate are arranged in one time along the same axial direction; the top surface of the upper end plate is attached to an upper pile end plate of the concrete pile, a plurality of upper connecting holes which are uniformly distributed around the axial direction are formed in the upper end plate, and the upper end plate penetrates through the upper connecting holes through upper locking pieces and is locked with the upper pile end plate; the top surface of the lower end plate is attached to a lower pile end plate of the concrete pile, a plurality of lower connecting holes which are uniformly distributed around the axial direction are formed in the lower end plate, and the lower end plate penetrates through the lower connecting holes through lower locking pieces and is locked with the lower pile end plate; the vertical plates are arranged between the bottom surface of the upper end plate and the top surface of the lower end plate, an independent installation space with one open end is formed between every two adjacent vertical plates and between the bottom surface of the upper end plate, the top surface of the lower end plate and the outer side surface of the inner cylinder, and the vertical plates are used for supporting the upper end plate and the lower end plate.
Further, in the flange mechanical joint for a concrete pile, an upper through hole is formed in the upper end plate, and the upper through hole and the inner cylinder are coaxial.
Further, in the flange mechanical joint for a concrete pile described above, the diameter of the upper through hole is equal to the inner diameter or the outer diameter of the inner cylinder.
Further, in the flange mechanical joint for a concrete pile, a lower through hole is formed in the lower end plate, and the lower through hole is coaxial with the inner cylinder.
Further, in the flange mechanical joint for a concrete pile described above, the diameter of the lower through hole is equal to the inner diameter or the outer diameter of the inner cylinder.
Further, in the flange mechanical joint for a concrete pile, the geometric shapes of the upper end plate and the lower end plate are matched with the geometric shape of the upper pile end plate or the lower pile end plate of the concrete pile.
Further, in the flange mechanical joint for the concrete pile, the mechanical joint further comprises a cover plate, the cover plate is arranged at the opening end of the installation space and is arc-shaped, the arc-shaped radian is matched with the radian of the opening end of the installation space, the cover plate is provided with a plurality of pieces, holes matched with the preformed holes in the vertical plate are formed in two ends of each cover plate, and each cover plate corresponds to one or more installation spaces.
Furthermore, in the flange mechanical joint for the concrete pile, an unfilled corner and a compensation sheet are arranged at the end of each cover plate along the vertical direction, the unfilled corner and the compensation sheet of each two adjacent cover plates are matched with each other, the compensation sheet is provided with the hole, and the hole is used for penetrating a bolt to connect the cover plate with the vertical plate.
Further, in the flange mechanical joint for a concrete pile, at least one upper connecting hole is formed in the upper end plate of each installation space, and at least one lower connecting hole is formed in the lower end plate of each installation space.
Further, in the flange mechanical joint for a concrete pile, the mechanical joint is formed by integral casting or plate splicing welding.
The utility model discloses an useful part lies in: the utility model provides a pair of flange mechanical joint for concrete pile, this mechanical joint is through the last pile head plate lock joint that sets up upper end plate and concrete pile, set up the last pile head plate lock joint of lower end plate and concrete pile to still be equipped with the riser between upper end plate and lower end plate, be used for forming the installation space, the operating personnel installation operation of being convenient for, can confirm simultaneously according to actual need that it fills in the installation space and irritates full mortar and increase joint strength, or set up the apron through the periphery at the installation space and be used for further reinforcing to connect. The mechanical joint has the advantages of simple structure, convenient construction and reliable connection.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Wherein:
fig. 1 is a schematic perspective view of a flange mechanical joint for a concrete pile according to the present invention;
fig. 2 is a top view of the flange mechanical joint for a concrete pile provided by the present invention;
fig. 3 is a front view of the flange mechanical joint for a concrete pile provided by the present invention.
Description of reference numerals: 1. an upper end plate; 11. an upper connecting hole; 2. a lower end plate; 21. a lower connection hole; 3. An inner cylinder; 4. a vertical plate; 41. reserving a hole; 5. and (7) a cover plate.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. Each example is provided by way of explanation of the invention and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.
In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected", "connected" and "disposed" used in the present invention should be understood in a broad sense, and may be, for example, either fixedly connected or detachably connected; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
As shown in fig. 1 to fig. 3, in order to provide the flange mechanical joint for a concrete pile of the present invention, fig. 1 is a schematic perspective view of the flange mechanical joint for a concrete pile of the present invention; fig. 2 is a top view of the flange mechanical joint for a concrete pile provided by the present invention; fig. 3 is a front view of the flange mechanical joint for a concrete pile provided by the present invention.
The utility model provides a mechanical joint is applicable to the building, the bridge, the articulate effect of concrete pile for the basis such as strut, because the restriction of internal transportation trailer length (13 meters), so exceed the long general adoption pile extension of 15 meters, internal pile extension generally adopts carbon dioxide protection welding, because the end that utilizes two stakes is welded quality very poor mutually, is the precast concrete pile foundation quality problem that stands out most at present, engineering basis detection problem appears in the pile extension position mostly.
The tubular pile/square pile is called pre-tensioning prestressed concrete tubular pile/square pile. The appearance is round and square, and also has special-shaped bamboo-shaped piles and concrete piles without end plates. The pile with end plates is generally connected by adopting a two-dimensional welding method. When no end plate is produced, a steel bar sleeve is adopted for tensioning, and a mechanical quick connector is adopted for pile splicing. There are many types of existing mechanical joints, including piles adapted for use with end pile plates and piles adapted for use with endless pile plates. The concrete pipe pile is mainly used for foundation infrastructure and is used as a foundation supporting structural member of a building. The pipe concrete pile is suitable for industrial and civil building engineering, harbor engineering and the foundation engineering of municipal administration, bridges, railways, highways, water conservancy, electric power and the like.
At present, the mechanical joint mainly comprises two main types: 1. mechanical connectors, such as a toothed type, a hoop type, an eccentric type, internal and external threads, a bolt type and the like; 2. mechanical quick-acting couplings, e.g. snap-on, snap-on. The former is suitable for concrete pile with pile end plate, and may be used in welding construction to ensure the connection effect. The flange mechanical joint for the concrete pile is suitable for the concrete pile with the pile end plate and the concrete pile without the pile end plate, and preferably matched with the concrete pile with the pile end plate for use.
Further, as shown in fig. 1 to 3, the present invention provides a flange mechanical joint for concrete pile, which comprises a vertical plate 4, and an upper end plate 1, an inner cylinder 3 and a lower end plate 2 disposed at one time along the same axial direction. Wherein, interior cylinder 3 is located mechanical joint's intermediate position, and interior cylinder 3 is the cavity setting, and the upper end of interior cylinder 3 and the bottom surface fixed connection of up end plate 1, the lower extreme of interior cylinder 3 and the top surface fixed connection of lower end plate 2. The top surface of upper end plate 1 and the last pile head plate of concrete pile are laminated mutually, are equipped with a plurality of connecting holes 11 of going up around axial (the axis of inner cylinder 3) evenly distributed on upper end plate 1, and upper end plate 1 passes connecting hole 11 and last pile head plate lock joint through last fastener, and the quantity of the fastener of going up equals with the quantity of last connecting hole 11, corresponds in each connecting hole 11 promptly and passes a fastener of going up.
Further, the top surface of the lower end plate 2 is attached to the lower pile end plate of the concrete pile, a plurality of lower connecting holes 21 are uniformly distributed along the axial direction on the lower end plate 2, the lower end plate 2 penetrates through the lower connecting holes 21 through lower locking pieces and is locked with the lower pile end plate, the number of the lower locking pieces is equal to that of the lower connecting holes 21, namely, one lower locking piece correspondingly penetrates through each lower connecting hole 21.
Furthermore, the vertical plates 4 are multiple, the vertical plates 4 are all arranged between the bottom surface of the upper end plate 1 and the top surface of the lower end plate 2, an independent installation space with an opening at one end is formed between every two adjacent vertical plates 4 and the bottom surface of the upper end plate 1, the top surface of the lower end plate 2 and the outer side surface of the inner cylinder 3 which are located between the two adjacent vertical plates 4, and the vertical plates 4 are used for supporting the upper end plate 1 and the lower end plate 2. In the actual installation process, the installation space can provide an operation space for an operator to screw the upper locking piece for locking the upper end plate 1 with the upper pile end plate and the lower locking piece for locking the lower end plate 2 with the lower pile end plate.
Further, adopt high strength bolt to pin upper end plate 1 and lower end plate 2 respectively with the bolt hole of former production stretch-draw usefulness of concrete pile, have the advantage that connection quality reliability is high. And after the connection is finished, mortar can be filled in the installation space for increasing the connection strength of the mechanical joint. In the area with weak corrosivity, the installation space can be filled without filling mortar, and the cover plate 5 is not required to be arranged outside the installation space.
Preferably, the upper end plate 1 is provided with an upper through hole coaxial with the inner cylinder 3. The diameter of the upper through hole is equal to the inner diameter or the outer diameter of the inner cylinder 3, so that the weight of the mechanical joint can be reduced, and the cost is saved.
Preferably, the lower end plate 2 is provided with a lower through hole coaxial with the inner cylinder 3. The diameter of the lower through hole is equal to the inner diameter or the outer diameter of the inner cylinder 3, so that the weight of the mechanical joint can be reduced, and the cost is saved.
Further, the inner cylinder 3 may have upwardly and downwardly extending spigots for penetrating into the central holes of the upper and lower end plates of the concrete pile to facilitate alignment with the concrete pile when the mechanical joint is installed.
Preferably, the geometry of the upper end plate 1 and the lower end plate 2 are matched with the geometry of the upper pile end plate or the lower pile end plate of the concrete pile, so as to ensure that the mechanical joint is matched with concrete piles with different cross-sectional shapes, and the universality of the mechanical joint is enhanced.
Preferably, except that upper end plate 1 adopts the bolt lock with the last pile head plate of concrete pile to connect, lower end plate 2 adopts the bolt lock with the last pile head plate of concrete pile to connect outward, can surround with apron 5 at the open end of foretell installation space, mechanical joint still includes apron 5 promptly, apron 5 locates the open end of installation space, apron 5 is the arc, the radian of arc matches with the radian of the open end of installation space, apron 5 is equipped with the multi-disc, the both ends of each apron 5 all are equipped with the hole with preformed hole 41 matched with on the riser 4, each apron 5 corresponds one or more installation space.
Furthermore, the end of each cover plate 5 is provided with an unfilled corner and a compensation plate along the vertical direction, the unfilled corner and the compensation plate of each two adjacent cover plates 5 are matched with each other, the compensation plate is provided with a hole, and the hole is used for penetrating a bolt to connect the cover plate 5 with the vertical plate 4. That is, the unfilled corner at the end of one cover plate 5 is matched with the compensation plate on the other cover plate 5 adjacent to the unfilled corner. Similarly, the compensation piece at the end of one cover plate 5 is just matched with the unfilled corner on the other cover plate 5 adjacent to the compensation piece, and at the moment, the end of two adjacent cover plates 5 are simultaneously connected with the side surface of one vertical plate 4.
Further, if it is desired that the cover 5 is more firmly installed, a welding process may be added between the cover 5 and the upper and lower end plates 1 and 2.
Further, at least one upper connection hole 11 is formed in the upper end plate 1 of each installation space, and at least one lower connection hole 21 is formed in the lower end plate 2 of each installation space. And the upper connecting hole 11 in each mounting space and the lower connecting hole 21 can be arranged in a non-coaxial manner so as to disperse the shear stress between the upper concrete pile and the lower concrete pile, improve the connecting strength of the mechanical joint and prolong the service life of the mechanical joint.
Furthermore, the mechanical joint is made of steel plates, and an integral cast steel casting process can also be adopted.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A flange mechanical joint for a concrete pile is characterized by comprising a vertical plate, an upper end plate, an inner cylinder and a lower end plate which are arranged at one time along the same axial direction, wherein,
the upper end of the inner cylinder is fixedly connected with the bottom surface of the upper end plate, and the lower end of the inner cylinder is fixedly connected with the top surface of the lower end plate;
the top surface of the upper end plate is attached to an upper pile end plate of the concrete pile, a plurality of upper connecting holes which are uniformly distributed around the axial direction are formed in the upper end plate, and the upper end plate penetrates through the upper connecting holes through upper locking pieces and is locked with the upper pile end plate;
the top surface of the lower end plate is attached to a lower pile end plate of the concrete pile, a plurality of lower connecting holes which are uniformly distributed around the axial direction are formed in the lower end plate, and the lower end plate penetrates through the lower connecting holes through lower locking pieces and is locked with the lower pile end plate;
the vertical plates are arranged between the bottom surface of the upper end plate and the top surface of the lower end plate, an independent installation space with one end opening outwards is formed between every two adjacent vertical plates and between the bottom surface of the upper end plate, the top surface of the lower end plate and the outer side surface of the inner cylinder, and the vertical plates are used for supporting the upper end plate and the lower end plate.
2. A mechanical flange joint for a concrete pile according to claim 1, wherein said upper end plate is provided with an upper through hole, said upper through hole being coaxial with said inner cylinder.
3. A mechanical flange joint for a concrete pile according to claim 2, wherein said upper through hole has a diameter equal to the inner diameter or outer diameter of said inner cylinder.
4. A mechanical flange joint for a concrete pile according to claim 1, wherein said lower end plate is provided with a lower through hole, said lower through hole being coaxial with said inner cylinder.
5. A flanged mechanical joint for a concrete pile according to claim 4, wherein the diameter of the lower through-hole is equal to the inner or outer diameter of the inner cylinder.
6. A flanged mechanical joint for a concrete pile according to claim 1, wherein the upper end plate and the lower end plate each have a geometry matching the geometry of the upper end plate or the lower end plate of the concrete pile.
7. The flange mechanical joint for the concrete pile according to claim 1, further comprising a cover plate, wherein the cover plate is arranged at the opening end of the installation space, the cover plate is arc-shaped, the radian of the arc is matched with that of the opening end of the installation space, the cover plate is provided with a plurality of pieces, holes matched with the reserved holes in the vertical plate are formed in two ends of each cover plate, and each cover plate corresponds to one or more installation spaces.
8. The flange mechanical joint for the concrete pile according to claim 7, wherein an unfilled corner and a compensation piece are arranged at the end of each cover plate along the vertical direction, the unfilled corner and the compensation piece of each two adjacent cover plates are matched with each other, the compensation piece is provided with the hole, and the hole is used for being penetrated by a bolt to connect the cover plate with the vertical plate.
9. A mechanical coupler for a concrete pile according to claim 1, wherein said upper end plate of each of said installation spaces is provided with at least one of said upper coupling holes, and said lower end plate of each of said installation spaces is provided with at least one of said lower coupling holes.
10. The flange mechanical joint for the concrete pile according to claim 1, wherein the mechanical joint is integrally cast or tailor welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020672063.2U CN212248225U (en) | 2020-04-28 | 2020-04-28 | Flange mechanical joint for concrete pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020672063.2U CN212248225U (en) | 2020-04-28 | 2020-04-28 | Flange mechanical joint for concrete pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212248225U true CN212248225U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020672063.2U Active CN212248225U (en) | 2020-04-28 | 2020-04-28 | Flange mechanical joint for concrete pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212248225U (en) |
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2020
- 2020-04-28 CN CN202020672063.2U patent/CN212248225U/en active Active
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