JP2005126940A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector which is for use in connection of a plurality of foundation pile members such as steel pipe piles together, in the field of building/penetration, and contributes to easy and quick connection work of the foundation pile members. <P>SOLUTION: The connector is fixed to connection edges 6 of the respective foundation pile members 5 each having a predetermined length, for connecting the foundation pile members 5 together, and consists of at least a pair of connector bodies 2a, 2b, and a fixing means 3 for rigidly connecting the connector bodies 2a, 2b together. Each of the connector bodies 2a, 2b is formed of a base plate 7 fixed to the connection edge 6, a connection plate 9 fixed to one surface of the base plate 7, and a connecting hole 8 bored in the connection plate 9. Then the connection plates 9 of the connector bodies 2a, 2b fixed to the connection edges 6 of the respective foundation pile members 5 opposed to each other, are engaged with each other at the time of connection, and the connector bodies 2a, 2b are rigidly connected together via the connecting holes 8 by means of the fixing means 3. In this manner the plurality of foundation pile members 5 are connected together. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a connector that sequentially connects steel pipe piles of a certain length that are driven into the ground as foundation piles when a detached house, an apartment house, and other various structures are constructed.

  When constructing detached houses and apartment houses, foundation piles are built and penetrated into the ground to strengthen the ground depending on the construction site. In that case, as a foundation pile, what connected the steel pipe pile of a predetermined length one by one to the pile tip steel pipe provided with the screw blade, for example is used.

  When connecting this steel pipe pile etc. as a prior art example (1), the end surface of the steel pipe piles connected, for example at the construction and penetration site, was contacted, and the contact circumference was welded and connected.

  As another conventional example (2), a steel thread pile is formed at one end of a steel pipe pile at a steel pipe processing factory, and a male thread is formed at the other end. Then, the steel pipe pile is erected and penetrated into the ground with a pile erection / rotary penetration device, and the next steel pipe pile connected to this steel pipe pile is lifted with a pile erection / rotary penetration device, and the pile core of both steel pipe piles The steel pipe pile was rotated by the above-mentioned device, and the male screw part (female screw part) of the next steel pipe pile was screwed and connected to the female screw part (male screw part) of the previous steel pipe pile.

  As another conventional example (3), one end of a steel pipe pile is formed in an enlarged opening from the other part in a steel pipe processing factory, and the built-in / rotated pile at this steel pipe pile built-in / penetration site. The steel pipe pile is installed and penetrated into the ground with the penetration device, the next steel pipe pile connected to this steel pipe pile is lifted with the pile construction and rotary penetration device, and the pile centering of both steel pipe piles is supported and supported, for example An enlarged opening of the upper steel pipe pile is fitted on one end of the lower steel pipe pile, a through hole is opened from the horizontal direction in this connecting part of both steel pipe piles with a drilling device, and a bolt is passed through this through hole and fastened with a nut And both steel pipe piles were connected.

Note that there are the following documents as patent documents related to the present invention.
JP-A-10-79078 JP 2000-222636 A JP 2001-319269 A

  However, in the connection of steel pipe piles and the like by welding as in the conventional example (1) described above, the rainy day has hindered the welding work, and the ability of the welding technique of the person who performs the welding on site is greatly affected, and always There was a problem that connection (connection) of steel pipe piles, etc. with stable quality could not be expected. In addition, there is a problem in that the foundation work cost becomes high because a welder and a welding machine have to be prepared.

  Moreover, in the connection of the steel pipe pile by the screw alignment of the above-described conventional example (2), labor and time are required for threading the steel pipe pile, and the cost of the steel pipe pile becomes high. Further, in the connection work between steel pipe piles at the site, if the pile core is not accurately aligned, it cannot be screwed in well, and if the threaded portion is bitten, subsequent processing is difficult. Furthermore, when foundation piles such as steel pipe piles that were screwed in and built and penetrated into the ground had to be pulled out from the ground, it was difficult to reverse them and remove them.

  Furthermore, in the case of the connection means which expands and connects one end part of a steel pipe pile like the above-mentioned prior art example (3), the process which opens a through-hole with a drilling apparatus must be given on the spot, and many steel pipe piles At the site where it was necessary to build and penetrate, it took time and effort to drill holes, which was a problem in terms of work efficiency. In addition, not all workers could easily drill through holes.

  The present invention has been developed in view of these points. The purpose is to build and penetrate foundation pile members such as steel pipe piles that are foundation piles in order to easily and quickly connect the foundation pile members to the foundation pile. An object of the present invention is to provide a connector that can efficiently perform a penetration operation.

  The connecting tool of the present invention according to claim 1 is at least one pair of connecting members for fixing the connecting members of the foundation piles to each connecting end of a plurality of foundation pile members having a predetermined length, The connecting body includes a fixing means for connecting and fixing the connecting body, and each connecting body includes a base plate fixed to the connecting end, a connecting plate fixed to one side of the base plate, and a connecting hole drilled in the connecting plate. The connecting plates of the connecting bodies fixed to the connecting end portions of the opposing foundation pile members are engaged at the time of connection, and the connecting bodies are connected and fixed by fixing means through the connecting holes, and the plurality of foundations It is characterized by a configuration that enables connection of pile members.

  According to a second aspect of the present invention, there is provided the connecting tool according to the first aspect, wherein the connecting plate has a T-shape in a plan view standing on one side of the base plate.

  According to a third aspect of the present invention, there is provided the coupling tool according to the first aspect, wherein the coupling plate is further abutting plate in the left-right direction of the upper end portion of the Y-shape in plan view standing on one side of the base plate. It is the shape which formed the part.

  According to a fourth aspect of the present invention, there is provided a connector according to the present invention, wherein at least one pair of connectors for fixing the foundation pile members fixed to the connection ends of a plurality of foundation pile members having a predetermined length, A connecting means for connecting and fixing the connecting body, wherein one connecting body includes a base plate fixed to the connecting end portion of the one foundation pile member, a cylindrical member fixed to one surface of the base plate, and a cylindrical member. The other connecting body includes a base plate fixed to a connecting end portion of the other foundation pile member, an engaging cylinder member fixed to one surface of the base plate, It is composed of a connecting hole drilled in a cylindrical member, and the connecting cylindrical member fixed to the other foundation pile member is inserted into the cylindrical member of the connected body fixed to one of the foundation pile members facing at the time of connection. Then, the cylindrical member and the engaging cylindrical member are connected and fixed by fixing means through each connecting hole, And wherein configuration to allow connecting the number of foundation piles member.

  The connection tool of the present invention according to claim 5 is the connection tool according to claim 1, 2, 3 or 4, wherein the foundation pile member is a steel pipe pile, a pile tip steel pipe provided with a screw blade, or a screw blade. It is a steel pipe with a screw blade provided for.

  According to the connecting tool of the present invention, various foundation pile members can be easily and quickly connected on site to advance the building / penetration work when building / penetrating into the ground compared to the conventional case. Work efficiency can be improved. In addition, the connecting device of the present invention can be manufactured and attached at a low cost with a simple structure, and can contribute to reducing the construction cost in combination with good work efficiency.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode connector for carrying out the present invention will be described below with reference to the drawings.
FIGS. 1-8 is a figure regarding the coupling tool of an example which concerns on this invention. The connector 1 includes a pair of connecting bodies 2a and 2b and fixing means 3 for connecting and fixing the connecting bodies 2a and 2b.

  Each connecting body 2a, 2b is of the same shape made of steel, and in the example shown in the figure, a circular base plate 7 having a size for closing the hollow hole of each foundation pile member 5 such as a steel pipe pile 4 and the like. The base plate 7 is composed of a connecting plate 9 having a T-shape in plan view and having a connecting hole 8 which is fixed by welding on one side of the base plate 7. The connecting plate 9 is fixed by welding with the connecting hole 8 side near the center from one side of the base plate 7 to the center. The connection holes 8 are perforated at two locations on the left and right sides near the center of the base plate 7 of the connection plate 9. Of course, the opposing connection holes 8 of each connection plate 9 are perforated at positions that coincide when the connection bodies 2a and 2b are engaged.

  Each of the connecting bodies 2a and 2b described above is installed and penetrated into the connecting end portion 6 (both ends or one end portion) of the foundation pile member 5 such as the steel pipe pile 4 having a predetermined length. It is welded and fixed at a factory etc. before being carried in.

  The fixing means 3 is composed of a bolt 10 and a nut 11 in this example, and both the connecting bodies 2a and 2b are connected and fixed by tightening the nut 10 through the bolts 10 in the connecting holes 8 facing each connecting body 2a and 2b. It can be done.

  As described above, the connecting tool 1 having such a structure is fixed to the connecting end portion 6 of the foundation pile member 5 in advance, so that the foundation pile member 5 can be built and penetrated into the ground. The steel pipe pile 4 (see FIG. 18), which is the foundation pile member 5 being built and penetrated, is connected to each other through the fixing means 3, or the steel pipe pile 4 and the screw blade 12 which are the foundation pile member 5 are connected to each other. The pile tip steel pipe 13 (see FIG. 19) connected, the steel blade pile with screw blades 19 (see FIG. 20) which is the foundation pile member 5 are connected, or the pile tip which is the foundation pile member 5 The steel pipe 13 and the steel pipe pile 4 can be connected, or other various foundation pile members including these steel pipes can be connected and fixed.

  When each foundation pile member 5 provided with the connector 1 is sequentially built and penetrated at the site of construction and penetration into the ground, it is first screwed by a pile construction and rotary penetration device (not shown). The pile tip steel pipe 13 provided with the blades 12 is penetrated, the steel pipe pile 4 is connected to the pile tip steel pipe 13 via the connector 1, and the pile tip steel pipe 13 is connected with a pile erection / rotary penetration device (not shown). The steel pipe pile 4 is penetrated into the ground.

  At this time, when the position of the connecting body 2b (see FIGS. 1 and 2) of the connecting end portion 6 of the pile tip steel pipe 13 becomes a position where the worker can easily connect on the ground, The penetration by (not shown) is temporarily stopped. In this state, the steel pipe pile 4 to be connected next is lifted by a pile erection / rotary penetration device (not shown), the pile core is aligned with the previous pile tip steel pipe 13, and the connected body 2 a of this steel pipe pile 4. Is engaged with the connecting body 2b of the previous pile tip steel pipe 13. That is, the connecting plate 9 in which the connection hole 8 of the upper steel pipe pile 4 is drilled is made to face and abut the connection plate 9 in which the connection hole 8 of the lower pile tip steel pipe 13 is drilled. In this way, the bolts 10 are passed through the corresponding connecting holes 8 of the connecting plates 9 and 9 and tightened with the nuts 11, whereby the pile tip steel pipe 13 and the steel pipe piles 4 and 5 are connected via the connecting bodies 2 a and 2 b. Are connected and fixed. If it can connect in this way, it will penetrate again into a ground with a pile erection and rotation penetration device (not shown), and such a work will be repeated and a desired number of steel pipe piles 4 will be built in a ground. The above connection operation is the same when the steel pipe piles 4 are connected to each other and the other types of foundation pile members 5 are connected.

  Next, FIGS. 9-12 is a figure regarding the coupler 14 of the other example which concerns on this invention. In the connector 14 of this example (for the sake of convenience, the same reference numerals in the drawings are the same as those in the above example), the connecting plate 9 of each connecting body 2a, 2b has a Y-shaped upper end portion in plan view. The contact plate portion 15 is further formed in the left-right direction. Each contact plate 15 is provided with a connecting hole 8. Other configurations and connection methods are the same as those in the above example, and the same reference numerals are given to the same portions and description thereof is omitted.

  Next, FIGS. 13 to 17 are views relating to another example of the connector 16 according to the present invention. The connector 16 of this example (for convenience, the reference numeral in the figure uses the same reference numeral as in the above example) is also constituted by a pair of connecting bodies 2a and 2b and the fixing means 3 similar to the above example. ing.

  The connecting bodies 2a and 2b are different in configuration from the above example, and one connecting body 2a (see FIGS. 13 and 14) is a base plate 7 fixed to the connecting end portion 6 of the foundation pile member 5 described above. And a cylindrical member 17 fixed to one surface of the base plate 7 by welding. The cylindrical member 17 is a quadrangle in the illustrated example. A connection hole 8 is formed in the center of the four surfaces of the rectangular tube member 17. Of course, the cylindrical member 17 may have a round shape, a triangular shape, a rhombus shape, or other shapes.

  The other connecting body 2b (see FIGS. 15 and 16) includes a base plate 7 fixed to the connecting end portion 6 of the above-described foundation pile member 5, and an engagement cylinder fixed to one surface of the base plate 7 by welding. And the member 18. The engagement cylinder member 18 is a quadrangle that can be inserted into the cylinder member 17. Of course, the engagement cylinder member 18 may have a round shape corresponding to the shape of the cylinder member 17 or other shapes. A connection hole 8 is also drilled in the center of the four surfaces of the rectangular engagement cylinder member 18. A nut 11 (see FIG. 16) is fixed to the inner surface of the engagement cylinder member 18 at the position of each connection hole 8 by welding or the like.

  In the case of the connecting tool 16 of this example, the connecting body 2a including the cylindrical member 17 is fixed to one end portion of the steel pile pile 4, for example, which is the foundation pile member 5, and the engaging cylindrical member 18 is provided to the other end portion. The coupling body 2b is fixed.

  Thus, when connecting the steel pipe pile 4 provided with the connection tool 16 (refer FIG. 16, FIG. 17), the connection body fixed to the connection end part 6 of the lower steel pipe pile 4 (illustration omitted) at the time of connection, for example. The cylindrical member 17 of 2a is inserted with the engaging cylindrical member 18 of the connecting body 2b fixed to the connecting end portion 6 of the upper steel pipe pile 4, and is screwed to the nut 11 through the bolts 10 through the corresponding connecting holes 8. Connect and fix. Of course, in connection of the steel pipe pile 4 provided with the connection tool 16, the cylinder member 17 is upper, the engagement cylinder member 18 is lower, and the upper steel pipe pile 4 is connected to the engagement cylinder member 18 of the lower steel pipe pile 4. The cylindrical members 17 may be connected so as to be fitted.

  In each of the above examples, the fixing means may be a means for threading the connecting hole 8 and screwing the bolt 10 into the connecting hole 8 to connect and fix the connecting bodies 2a and 2b. The fixing means is not limited to bolts or bolts and nuts, and may be any means as long as the connecting bodies 2a and 2b can be connected and fixed. Moreover, even if the magnitude | size of the base plate 7 of each connection body 2a, 2b fixed to the connection end part 6 of the member 5 for foundation piles by welding is larger than the outer diameter of the member 5 for foundation piles as shown, It may be the same size as the outer diameter of the pile member 5 or may be slightly smaller than the inner diameter of the foundation pile member 5. When the base plate is the same or larger than the outer diameter of the foundation pile member 5, the base plate is brought into contact with the end face of the foundation pile member 5, and the boundary portion between the end of the foundation pile member 5 and the base plate is welded. do it. Further, when the base plate is slightly smaller than the inner diameter of the foundation pile member 5, it is stored near the end in the foundation pile member 5 and the boundary portion between the inner peripheral surface of the foundation pile member 5 and the base plate is welded. do it. In this case, the connecting plate, or the cylinder member and the engaging cylinder member are large enough to be housed in the foundation pile member 5. Therefore, the connection end portion 6 of the foundation pile member 5 in the present invention is an end face of the foundation pile member 5 and an inner peripheral surface portion in the vicinity of the end face of the foundation pile member 5. Of course, the said connection edge part 6 is also an outer peripheral surface part of the end face vicinity of the member 5 for foundation piles depending on the shape of a base board.

It is explanatory drawing of the state which connected the member for foundation piles with the coupling tool of an example of this invention. It is explanatory drawing of the state before connecting the member for foundation piles with the connector of an example of this invention. It is a front view of the coupling body which comprises the coupling tool of an example of this invention. FIG. 4 is a plan view of FIG. 3. It is a top view of one coupling body of a pair of coupling body of this invention. It is a top view of the other coupling body of a pair of coupling body of this invention. It is explanatory drawing of the connection part of the connector of an example of this invention. It is explanatory drawing which shows the connection state of a pair of connection body of this invention. It is a top view of one coupling body which comprises the coupling tool of the other example of this invention. It is a top view of the other connection body of a pair of other examples connection body of the present invention. It is explanatory drawing which shows the connection state of the connector of the other example of this invention. It is explanatory drawing which shows the connection state of the coupling body of a pair of other example of this invention. It is a front view of the coupling body which comprises the coupling tool of another example of this invention. It is a top view of the cylinder member of FIG. It is a front view of the other connection body corresponding to the connection body of FIG. It is a top view of the engagement cylinder member of FIG. It is explanatory drawing which shows the connection state of a pair of coupling body of another example of this invention. It is a front view of an example steel pipe pile. It is a front view of an example pile tip steel pipe. It is a front view of an example of a steel pipe pile with a screw blade.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connection tool 2a Connection body 2b Connection body 3 Fixing means 4 Steel pipe pile 5 Foundation pile member 6 Connection end 7 Base plate 8 Connection hole 9 Connection plate 13 Pile tip steel pipe 14 Connection tool 15 Contacting plate part 16 Connection tool 17 Cylinder member 18 engaging cylinder member

Claims (5)

It consists of at least one pair of connecting bodies for fixing the connecting ends of the plurality of foundation pile members having a predetermined length to connect the foundation pile members, and fixing means for connecting and fixing the connecting bodies, Each connection body is composed of a base plate fixed to the connection end, a connection plate fixed to one side of the base plate, and a connection hole drilled in the connection plate. The connection plate of the connection body fixed to the part is engaged at the time of connection, and each connection body is connected and fixed by a fixing means through the connection hole, so that the plurality of foundation pile members can be connected. Connecting tool. The connector according to claim 1, wherein the connecting plate has a T-shape in plan view and is erected on one side of the base plate. The connecting device according to claim 1, wherein the connecting plate has a shape in which an abutting plate portion is further formed in the left-right direction of the upper end portion of the Y-shape in a plan view standing on one side of the base plate. It consists of at least one pair of connecting bodies for fixing the connecting ends of the plurality of foundation pile members having a predetermined length to connect the foundation pile members, and fixing means for connecting and fixing the connecting bodies, One connection body is composed of a base plate fixed to the connection end portion of the one foundation pile member, a cylindrical member fixed to one surface of the base plate, and a connection hole drilled in the cylindrical member. The connecting body consists of a base plate fixed to the connecting end of the other foundation pile member, an engaging cylinder member fixed to one surface of the base plate, and a connecting hole drilled in the engaging cylinder member, The connecting cylinder member fixed to the other foundation pile member is inserted into the connecting cylinder member fixed to one of the foundation pile members facing each other at the time of connection. By connecting and fixing the cylindrical member and the engaging cylindrical member, the plurality of foundation pile members can be connected. Coupling characterized a configuration in which the. The connection tool according to claim 1, 2, 3 or 4, wherein the foundation pile member is a steel pipe pile, a pile tip steel pipe provided with screw blades, or a steel pipe with screw blades provided with screw blades on the outer periphery.