CN209873786U - Self-wedging tubular pile connector - Google Patents

Abstract

The utility model relates to a from wedging formula tubular pile connector, it includes: at least two anchor ear sections, wherein the outer side surfaces of the anchor ear sections are constructed into wedge surfaces; self-wedging rings, wherein the inner side surfaces of the self-wedging rings are configured to be wedged into each other when there is a movement in the vertical direction relative to the wedge surfaces of the hoop sections. The tubular pile connector is simple in structure, time and labor are saved when tubular pile connection is carried out through the tubular pile connector, and the resistance to pulling and shearing of the connected tubular pile is strong.

Description

Self-wedging tubular pile connector

Technical Field

The utility model relates to a concrete tubular pile construction technical field, concretely relates to can install fast from wedging formula tubular pile connector.

Background

The concrete pipe pile has the characteristics of high bearing capacity, strong adaptability to geological conditions, high construction speed and the like, and is widely applied to building engineering. The effect of the tubular pile end plate at concrete tubular pile both ends mainly includes: the device is used for stretching a steel bar framework to generate prestress when manufacturing a tubular pile; the hammer of the pile driver is born when the pile is driven; and the like. The pipe pile end plate is welded to two concrete pipe piles commonly in the prior construction technology, the two pipe piles are welded together, the welding time of the mode is long, the welding quality is mainly based on the welding technology of workers, when the joint enters the underground, the quality of the joint cannot be guaranteed, the capacity of the pipe pile for bearing transverse shearing stress is insufficient, the joint is easy to break, the phenomenon of deviation of the upper pipe pile and the lower pipe pile is caused, the pipe pile loses the effect, the quality and the service life of the pipe pile cannot be guaranteed due to the pipe pile connected by the welding mode. The construction technology of using the connecting piece to realize the tubular pile connection also appears in the prior art, the connection speed of the tubular pile can be improved to a certain extent, but the connection strength of the tubular pile cannot be guaranteed, and particularly the capability of resisting transverse shearing force is not strong.

Therefore, a pipe pile connection device with high connection strength, short connection period and low cost is required in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can solve above-mentioned prior art's all sorts of not enough from wedging formula tubular pile connector at least partially.

According to an aspect of the utility model provides a from wedging formula tubular pile connector, it is used for connecting two concrete pipe piles of superpose, concrete pipe pile's tip all is provided with the annular end plate, wherein, the annular end plate is provided with the bulge along the circumference evagination of ring, wherein the tubular pile connector includes: at least two hoop sections arranged on the outer sides of the protrusions along the circumferential direction of the annular end plate, wherein the inner sides of the hoop sections are provided with grooves, the cross-sectional shapes of the grooves are configured to match the cross-sectional shapes of the two protrusions which are overlapped, and the outer side surfaces of the hoop sections are configured to be wedge surfaces; the self-wedging ring is arranged on the outer side of the anchor ear section along the circumferential direction of the anchor ear section, wherein the inner side surface of the self-wedging ring is configured to be mutually wedged when relative movement exists between the self-wedging ring and the wedge surface of the anchor ear section in the vertical direction.

The utility model discloses a utility model people is according to its field construction experience throughout the year, and it is feasible to discover to realize automatically that the tubular pile is connected with the help of indispensable downward hammering in the tubular pile operation, designs from this the utility model provides a from wedging formula tubular pile connector. The utility model discloses thereby the people creatively has found that can realize the self-wedging of connector via the vertical relative motion between the tubular pile of treating to connect and the tubular pile connector and has realized the tubular pile with whole mode that need not artifical the participation and connect. Compare with current welding or the mode with the help of connecting piece such as bolt, the utility model discloses a no matter on required operation time limit for a project and the operating cost, still the bending strength and the resistance to plucking intensity of the tubular pile after connecting all have had obvious improvement from the wedging formula tubular pile connector. And the utility model discloses a from characteristics such as wedging formula tubular pile connector's part is few, the assembly is simple, the commonality is strong are applicable to very much for example the tubular pile outdoor operations in railway field.

Preferably, the at least two hoop sections have substantially the same dimensions. This allows the anchor ear section to be produced in a mass-produced manner and to be used in a versatile manner, which brings about great convenience for outdoor work.

Preferably, the at least two hoop sections are three hoop sections, wherein each hoop section is at a central angle of 120 degrees with respect to the outer periphery of the ring-shaped end plate. This facilitates guiding the worker to assemble the hoop section in a prescribed manner, thereby reducing the possibility of the worker operating erroneously.

Preferably, the wedging angle of the inner side surface of the self-wedging ring is 5-10 degrees with respect to the vertical. This facilitates ensuring sufficient wedging action between the stakes to ensure the connection strength of the connector, which is substantially unaffected by the manner of worker installation and the external environment, and is well suited for use in outdoor work environments.

Preferably, the depth of the groove is equal to the protrusion of the projection of the annular end plate. The connector is convenient to ensure the sufficient wedging action among the stakes so as to ensure the connection strength of the connector, and the matching mode is convenient for workers to confirm that the hoop section is assembled in place, so that the connector is very suitable for outdoor operation environments.

Preferably, the concrete pipe pile further comprises a pipe sleeve connected to the annular end plate, wherein a concrete pipe body is cured in a space between the annular end plate and the pipe sleeve, and a plurality of channels for the steel bars to pass through are formed in the concrete pipe body. This facilitates ensuring sufficient wedging action between the stakes to ensure the connection strength of the connector.

Preferably, the outer diameter of the projection is larger than the outer diameter of the socket. This facilitates ensuring sufficient wedging action between the tube piles to ensure the connection strength of the connector, and can prevent undesirable inclination or declination between the stacked tube piles.

Preferably, the plurality of channels are arranged circumferentially at uniform intervals in the concrete pipe body. This facilitates ensuring sufficient wedging action between the stakes to ensure the connection strength of the connector.

Preferably, the thickness of the hoop section is designed to abut against the socket when wedged. This helps to increase the contact surface between the anchor ear sections and the body of the tube pile to be connected, thereby further increasing the strength of the connection between the tube piles, and can prevent undesirable inclination or declination angle between the stacked tube piles.

Preferably, the anchor ear section has a vertical extension height which is at least 3 times the thickness of the annular end plate. This also helps to increase the contact surface between the anchor ear sections and the body of the tube pile to be connected, thereby further increasing the strength of the connection between the tube piles, and can prevent undesirable inclination or declination angle between the stacked tube piles.

Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following, or may be learned from the practice of the invention.

Drawings

Embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein:

fig. 1 is a schematic cross-sectional view of a tubular pile connector according to the present invention.

Description of the reference numerals

11. 12 tubular piles 11A, 12a, annular end plates 11B, 12B, pipe sleeves

11C, 12℃ projections 11D, 12D. Concrete pipe 11E, 12E channel

2. Hoop section 21, groove 22, wedge surface 3, self-wedging ring 31 and inner side surface

Detailed Description

Referring now to the drawings, illustrative aspects of the disclosed apparatus and method will be described in detail. Although the drawings are provided to present some embodiments of the invention, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the disclosure of the present invention. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all drawings or examples.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed" on another component, it can be directly on the other component or intervening components may also be present. Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "above", "below", and other directional terms, will be understood to have their normal meaning and refer to those directions as they normally relate to when viewing the drawings. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.

The term "vertical" as used in the present invention means that there is a substantially vertical relationship in the three-dimensional space, which is not intended to be limited to strictly vertical, but rather to allow for some tilting. The terms "first," "second," and the like, as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The term "self-wedging" means wedging is achieved automatically without external aids or manipulations.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1, there are shown a first pipe pile 11 and a second pipe pile 12 made of concrete stacked, wherein the second pipe pile 12 has been partially inserted into the ground, for example. The first tubular pile 11 and the second tubular pile 12 are provided at ends thereof with a first annular end plate 11A and a second annular end plate 12A, respectively, wherein the abutment and preliminary alignment of the first tubular pile 11 and the second tubular pile 12 in the vertical direction are achieved via the first annular end plate 11A and the second annular end plate 12A. As shown, the first and second annular end plates 11A and 12A are provided with circumferentially outwardly convex protrusions 11C and 12C, wherein these protrusions 11C and 12C are preferably of the same protruding length to ensure that when the first upper pile 11 is subjected to downward hammering by the pile driver, the first pile 11 will not topple over the protrusions 12C as a bearing surface.

Preferably, a first pipe sleeve 11B and a second pipe sleeve 12B extending vertically are connected to the outer periphery of the first annular end plate 11A and the second annular end plate 12A, respectively, wherein the first pipe sleeve 11B and the second pipe sleeve 12B may be made of iron sheet, for example, so that a space for injecting concrete slurry is formed in the space between the annular end plates 11A and 12A and the pipe sleeves 11B and 12B, and a first concrete pipe body 11D and a second concrete pipe body 12D are formed after the concrete slurry is cured, respectively. As shown in the drawings, the outer diameters of the pipe sleeves 11B and 12B are preferably designed to be smaller than the outer diameters of the convex projections 11C and 12C. Alternatively, in order to enhance the connection strength between the first and second pipe piles 11 and 12, a plurality of passages 11E and 12E through which reinforcing bars may pass are formed in the first and second concrete pipe bodies 11D and 12D, respectively, wherein the passages are preferably arranged at uniform intervals in the concrete pipe body in the circumferential direction. Accordingly, apertures are provided in the first and second end plates 11A, 12A in alignment with the passages to allow the reinforcement bars to pass therethrough.

Further, as shown in fig. 1, the two illustrated stacked concrete pipe piles 11 and 12 may be connected via a self-wedging pipe pile connector according to the present invention. Wherein the self-wedging tubular pile connector comprises at least two anchor ear sections 2, as a preferred embodiment, the anchor ear sections 2 have substantially the same size, thereby realizing standardized production of the anchor ear sections. These anchor ear segments may be cast from cast iron, for example, and include an outer periphery that surrounds the entire ring-shaped end plates 11A and 12A, although it is also conceivable to surround only a substantial portion of the entire outer periphery, so long as a stable connection is ensured. It is possible to provide three hoop sections, each of which is at a central angle of 120 degrees relative to the outer circumference of the ring end plate, thereby enclosing the entire outer circumference of the ring end plates 11A and 12A.

As shown in fig. 1, these hoop sections 2 are arranged outside the protrusions 11C and 12C along the outer circumference of the ring-shaped end plates 11A and 12A, wherein the insides of these hoop sections 2 are each provided with a groove 21, as shown in fig. 1, wherein the cross-sectional shape of this groove 21 is configured to match the cross-sectional shape of the two protrusions 11C and 12C that are stacked so as to ensure a form fit therebetween when compressed. As shown in fig. 1, the stacked projections 11C and 12C are formed together into a substantially trapezoidal shape projecting outward, and accordingly, the cross section of the groove 21 is formed into a trapezoidal shape complementary thereto, so as to clamp and hold the two stacked projections 11C and 12C in the stacked state, so that the two ring-shaped end plates 11A and 12A are not significantly displaced or misaligned relative to each other even when subjected to a shear force in the lateral direction or the like, which ensures sufficient connection strength of the stacked tube piles.

Meanwhile, the outer side surface of the hoop sections 2 is configured as a wedge surface 31, which may be configured to expand 5 to 10 degrees outward relative to the vertical direction, for example, and an auto-wedge ring 3 surrounding the outer circumference of the hoop sections 2 is disposed on the outer side of the hoop sections 2, wherein the inner side surface of the auto-wedge ring 3 may be configured as an inclined surface forming a wedge surface connection with the wedge surface 22 as shown in fig. 1, so that the wedge surface 22 of the hoop sections 2 may be wedged with the inner side inclined surface of the auto-wedge ring 3 when there is a relative movement in the vertical direction, and the wedge angle of the wedge connection may be 5 to 10 degrees relative to the vertical direction, for example. This relative vertical movement may be due to the fact that the anchor ear section 2 moves downward with the pipe pile being hammered downward, and the self-wedging ring 3 is blocked by soil or the ground. Of course, other ways of achieving a relative movement in the vertical direction between the anchor ear section 2 and the self-wedging ring 3 are conceivable and are not limited to the embodiments given here as examples.

Further preferably, as shown in fig. 1, in which the outer diameter of the projection 11C is larger than that of the tube sleeve 11B, such a design is advantageous for increasing the connection strength between the tube piles, and can prevent an undesired inclination or declination angle between the stacked tube piles. Meanwhile, the thickness of the anchor ear section 2 may be preferably designed to be capable of abutting against the tube sleeve 11B when being wedged, which helps to increase the contact surface between the anchor ear section 2 and the tube pile body to be connected so as to further increase the connection strength between the tube piles, and may prevent an undesired inclination or tilt angle between the stacked tube piles. Likewise, it is preferable that the vertical extension height of the hoop section is at least 3 times of the thickness of the annular end plate, which also helps to increase the contact surface between the hoop section 2 and the tubular pile body to be connected, thereby further increasing the connection strength between tubular piles.

The operation of the self-wedging tubular pile connector according to the present invention will be described in a non-limiting manner as follows:

when piling is required, the two pipe piles 11 and 12 to be connected are stacked on top of each other via two aligned annular end plates 11A and 12A. Next, a plurality of hoop sections 2 may be arranged from the ring-shaped end plates 11A and 12A to align the mutually overlapping protrusions 11C and 12C in the ring-shaped end plates 11A and 12A with the grooves 21 of the hoop sections 2. Then, the self-wedging ring 3 is sleeved outside the anchor ear sections 2 so as to surround the anchor ear sections 2 on the whole periphery of the tubular pile. Then, allowing the pile driver to hammer the stacked tubular piles 11 and 12 downwards, as the stacked tubular piles 11 and 12 move downwards, the mutually stacked protrusions 11C and 12C in the annular end plates 11A and 12A thereof carry the hoop sections 2 downwards, but since the self-wedging ring 3 is blocked by the soil or the ground and cannot move downwards with the tubular piles and the hoop sections 2 by the same distance, the relative movement in the vertical direction between the two can cause the wedge surfaces on the outer side of the hoop sections 2 and the wedge surfaces on the inner side of the self-wedging ring 3 to form a tight self-wedging effect, thereby firmly clamping the hoop sections 2 in the self-wedging ring 3 without any significant displacement in the axial direction or the radial direction, which is very helpful for ensuring the sufficient connection strength of the tubular piles. And simultaneously, it is difficult to see the utility model discloses a from wedging formula tubular pile connector labour saving and time saving very only needs arrange staple bolt section 2 and from wedge ring 3 in advance according to the mode of regulation by the workman and just can carry out conventional hammering operation, this time limit for a project and the engineering cost of having saved the operation greatly. Further, through actual internal experiment, discover via the utility model discloses a bending strength and resistance to plucking intensity of the tubular pile that self-wedging formula tubular pile connector connects all satisfy the current construction standard of country.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.

Claims (10)

1. The utility model provides a from wedging formula tubular pile connector, its two concrete pipe piles that are used for connecting the superpose, concrete pipe pile's tip all is provided with annular end plate, its characterized in that, annular end plate is provided with the bulge along the circumference evagination, wherein the tubular pile connector includes:

at least two hoop sections arranged outside the protrusions along the periphery of the annular end plate, wherein the inside of the hoop sections is provided with a groove, wherein the cross-sectional shape of the groove is configured to match the cross-sectional shape of the two protrusions which are stacked, and the outer side surface of the hoop section is configured as a wedge surface;

the self-wedging ring is arranged on the outer side of the anchor ear section along the circumferential direction of the anchor ear section, wherein the inner side surface of the self-wedging ring is configured to be mutually wedged when relative movement exists between the self-wedging ring and the wedge surface of the anchor ear section in the vertical direction.

2. The self-wedging tube pile connector according to claim 1, wherein the at least two anchor ear sections have substantially the same dimensions.

3. The self-wedging tubular pile connector according to claim 2, wherein the at least two anchor ear sections are three anchor ear sections, wherein each anchor ear section is at a central angle of 120 degrees with respect to the outer circumference of the ring-shaped end plate.

4. The self-wedging tube pile connector according to claim 1, wherein a wedging angle of an inside surface of the self-wedging ring is 5 to 10 degrees with respect to a vertical direction.

5. The self-wedging tube pile connector according to claim 1, wherein a depth of the groove is equal to a protruding length of the protrusion of the annular end plate.

6. The self-wedging tubular pile connector according to claim 1, wherein the concrete tubular pile further comprises a tube sleeve connected to the ring-shaped end plate, wherein a concrete tube body is cured in a space between the ring-shaped end plate and the tube sleeve, the concrete tube body having a plurality of passages defined therein through which reinforcing bars pass.

7. The self-wedging tube pile connector according to claim 6, wherein an outer diameter of the projection is larger than an outer diameter of the tube sleeve.

8. The self-wedging tube pile connector according to claim 6, wherein the plurality of channels are arranged circumferentially at even intervals in the concrete pipe body.

9. The self-wedging tube pile connector according to claim 6, wherein the thickness of the hoop section is designed to abut to the tube sleeve when wedged.

10. The self-wedging tube pile connector according to claim 9, wherein the anchor ear section has a vertical extension height at least 3 times the thickness of the annular end plate.