KR20230045149A - A pile lifting structrue - Google Patents

Abstract

The present invention relates to a lifting mechanism for lifting and constructing piles for foundation construction, and more specifically, to a wedge-type lifting mechanism for foundation construction piles, which enhances the fastening force applied to the piles during connection and lifting work, simplifies the lifting structure to ensure the stability of the lifting work, reduces production costs, and improves constructability. To this end, the wedge-type lifting mechanism for foundation construction piles comprises: a first support (100) having a first towing hole (111) for towing formed on an upper part, and a sloping surface (112) on a lower part; a first weight (200) supporting vertical movement of the first support (100) during towing; and a first arm part (300) selectively brought in contact with the sloping surface (112) in response to the vertical movement of the first support (100). When the first arm part (300) comes into contact with the sloping surface (112), one or more first fixing bars (310) are pushed outward and expanded. Subsequently, the first arm part (300) is pressed and fixed to the inner circumference of a pile (10), resulting in the elevation of the pile (10).

Description

Wedge-shaped lifting mechanism of piles for foundation construction {A pile lifting structure}

The present invention is a lifting mechanism for lifting and constructing piles for foundation work, connecting work for lifting piles for foundation work, improving coherence during lifting, simplifying the lifting structure, securing the stability of the lifting work, and reducing production costs. It relates to a wedge-shaped lifting mechanism for piles for foundation construction that reduces workability and improves workability.

In general, foundation work is a construction method of constructing a structure for foundation ground work so that the load acting on the building structure or the weight of the building structure can be safely supported on the ground, and various Construction methods are used.

Among these foundation works, concrete piles are usually used for pile-driving foundations, and recently, high-strength piles such as PHC and STL are mainly used. In the field, high-strength piles are constructed in drilled fat holes, and the lifting of piles is essential in the construction process of high-strength piles.

For example, looking at Korean Patent Registration No. 10-1766166, the steps of constructing a drilling hole at a certain depth in the ground using an auger equipment; fastening a high-tensile bolt to the steel wire nut of the PHC pile; connecting an auxiliary port to the high tension bolt on the PHC pile side by using a detachable auxiliary port connecting means; lifting the auxiliary port and the PHC pile using a crane; A step of inserting the lifted auxiliary port and the PHC pile into the drilling hole; A driving step of hitting the auxiliary port so that the PHC pile penetrates the supporting ground; Rotating the auxiliary port to separate the connection of the auxiliary port from the PHC pile and then removing the auxiliary port from the PHC pile by lifting the auxiliary port; It is constructed through the step of backfilling the hole with soil in the drilled hole from which the auxiliary port is removed; the detachable auxiliary port connecting means is arranged in the circumferential direction at regular intervals on the circular auxiliary port connecting plate joined to the lower end of the steel pipe body side of the auxiliary port The high-tensile bolt fastener has an enlarged hole inclined portion into which the head of the high-tensile bolt is inserted, and a connection fixing portion in which the shank portion of the high-tensile bolt is connected and fixed in communication with each other and having a width smaller than the width of the enlarged inclined portion. A method of constructing a PHC pile using a detachable auxiliary port having a structure having an inclined slope so that the head of the high tension bolt smoothly enters the connection fixing part is proposed.

In addition, looking at the conventional Korean Patent Registration No. 10-2074663, it relates to a mold for PHC piles, which prevents contamination inside the mold and contamination of the surface of subsequent PHC pile products occurring in the process of manufacturing PHC piles of various lengths with one mold. It is a mold management method that can prevent, and the step of checking the margin section equal to or greater than the PHC file production section in the mold; forming a grease coating layer by applying grease to the spare section; And a step of attaching an antifouling sheet on the grease coating layer; a mold management method according to the change in the standard of the PHC pile is proposed.

On the other hand, the existing method of constructing piles for foundation construction is a method of winding a wire around the outer circumference of a pile loaded in an open storage yard at a construction site and connecting the pile to a crane using a wire to lift it, combining a lifting plate with a pile and using a lifting plate. A method of lifting by connecting a pile to a crane and a method of lifting by connecting a pile to a crane using an annular bolt by coupling an annular bolt to a pile are typical examples.

However, conventionally, in the lifting method using a wire, the wire simply wound around the outer circumference of the pile can easily fall out of the pile, causing a safety accident as the pile falls during the lifting of the pile, and the lifting method using a lifting plate and ring type The lifting method using bolts significantly reduces workability due to the time required to connect and dismantle the lifting plate or ring bolt to the pile, and the manufacturing cost of the pile increases as the lifting plate and the ring bolt are manufactured according to the pile specifications. There was a problem.

Korean Patent Registration No. 10-1766166 is presented. Korean Patent Registration No. 10-2074663 has been proposed.

The present invention is to solve the conventional problems, a lifting mechanism that fixes the pile with the weight of the pile while the arm moving by the wedge expands and presses the inner circumference of the pile, and automatically releases the pressing part of the pile when lifting is completed. As the lifting of the pile for foundation construction is performed by providing it, the pile is firmly fixed during lifting to prevent safety accidents caused by the separation of the pile, and it eliminates the need for auxiliary structures for lifting, improving workability and lowering the manufacturing cost of the pile. It has a purpose to do so.

The present invention to solve this object;

A first support having a first traction hole for traction at the upper portion and an inclined surface at the lower portion;

a first weight body for supporting the first support to move up and down during traction;

In response to the up and down movement of the first support, there is selective contact with the inclined surface. When in contact with the inclined surface, one or more first fixing rods are pushed outward to expand and are pressed and fixed to the inner circumference of the pile 10 to lift the pile It provides a wedge-shaped lifting mechanism of the foundation construction pile, characterized in that configured to include; the first arm portion.

According to the present invention, as the lifting of the pile for foundation construction is performed using a lifting mechanism having an extended structure of the arm moving by the wedge, the pile is firmly fixed during lifting to prevent a safety accident due to the separation of the pile, and the lifting There is no need for an auxiliary structure for the pile, so the workability is improved and the manufacturing cost of the pile is lowered.

1 and 2 are a configuration diagram of a wedge-shaped lifting mechanism of foundation construction piles according to a first embodiment of the present invention.
3 to 4 is a configuration diagram of a wedge-shaped lifting mechanism of foundation construction piles according to a second embodiment of the present invention.
5 to 6 is a configuration diagram of a wedge-shaped lifting mechanism of foundation construction piles according to a third embodiment of the present invention.
7 to 8 are a configuration diagram of a wedge-shaped lifting mechanism of foundation construction piles according to a fourth embodiment of the present invention.

The characteristics of the wedge-shaped lifting mechanism of the pile for foundation construction according to the present invention will be understood by the embodiments described in detail below with reference to the accompanying drawings.

On the other hand, in describing the embodiments, detailed descriptions of components that are widely known and used in the technical field to which the present invention belongs or does not belong will be omitted, and unnecessary descriptions will be omitted, and the present invention according to this will be omitted. This is to make the point more clear.

Hereinafter, as the basic configuration of the present invention, the configuration of each part of the wedge-shaped lifting mechanism of the foundation construction pile according to the first embodiment will be described in detail with reference to FIGS. 1 and 2. 1 is a perspective view of a wedge-shaped lifting mechanism, Figure 2 is a state diagram of the wedge-shaped lifting mechanism in use.

Looking schematically at the wedge-shaped lifting mechanism 1 of the pile for foundation construction according to this, the first support 100 having a first traction hole 111 and an inclined surface 112; a first weight body 200 supporting the first support 100; It is configured to include; a first arm part 300 that allows the pile 10 to be lifted.

The detailed configuration of the wedge-shaped lifting mechanism 1 of the pile for foundation construction constructed as described above will be described in detail with reference to the accompanying drawings.

First, the first support 100;

A first traction hole 111 for traction is formed in the upper part, has an inclined surface 112 in the lower part, and is for supporting the first arm part 300 while connecting the wedge-shaped lifting mechanism 1 to a crane or the like.

For example, the first support 100 can be towed with a first traction hole 111 formed thereon, and an inclined surface 112 is formed on the outer circumferential surface of the lower side to remove the inclined surface 112 during traction. 1 Wedge 110 to be moved up and down inside the weight body 200; further includes.

The wedge 110 has a first traction hole 111 penetrating the top and is formed in the form of a protrusion to form an inclined surface 112 on the lower side, and an upwardly inclined surface on the upper outer circumferential surface of the lower protrusion of the wedge 110 ( 112) is formed, and the wedge 110 can be connected to a traction device such as a crane using the first traction hole 111.

At this time, when the wedge 110 is inserted through the inside of the first weight body 200, the wedge 110 can move up and down with the traction force of the traction device in a state where the wedge 110 is supported by the first weight body 200, The inclined surface 112 of the wedge 110 corresponds to the vertical movement of the wedge 110 while being positioned adjacent to the first fixing table 310 of the first arm 300 provided around the first weight body 200 Thus, the inclined surface 112 may be selectively brought into contact with the first fixing table 310 .

In addition, the first support 100 includes an elastic part 120 provided so that an elastic force acts between the wedges 110 under the first weight body 200 to elastically support the wedge 110 downward; more includes

The elastic part 120 is provided so that an elastic force acts between the wedge 110 and the lower portion of the first weight body 200 so that the wedge 110 is elastically supported downward of the first weight body 200, thereby increasing the traction force of the traction device When this is released, the wedge 110 is automatically lowered by an elastic force, and the extension of the first arm 300 is induced.

Here, the elastic part 120 includes a guide 121 into which the first elastic body 123 is fitted while extending to the lower portion of the wedge 110;

A first support plate 122 protruding from the end of the guide 121; and

A first elastic body 123 provided with elastic force by being elastically supported at both ends between the first support plate 122 and the first weight body 200 while being inserted into the guide 121;

Meanwhile, the guide 121 protrudes from the lower end of the wedge 110 in an axial shape so that the first elastic body 123 is fitted into the lower end of the wedge 110. The guide 121 is detachably coupled to the lower end of the wedge 110 to fit the first elastic body 123 therein.

The first support plate 122 protrudes from the lower end of the guide 121 in a plate shape to support the first elastic body 123 fitted with the guide 121, and the first support plate 122 The elastic force of the first elastic body 123 acts between the first weight bodies 200 through.

The first elastic body 123 is a coil spring, and the upper end of the first elastic body 123 is supported by the lower end of the first weight body 200 in a state of being fitted to the guide 121, and the first elastic body 123 The lower end of ) is supported by the first support plate 122 and provides an elastic force between the first weight body 200 and the lower part of the wedge 110 so that the wedge 110 can descend using the elastic force.

And, the first weight body 200;

It is for supporting the first support 100 to move up and down during traction.

For example, the first weight body 200 has a first operating hole 211 in which the wedge 110 of the first support 100 is inserted to move up and down, and the first operating hole It further includes a first body 210 having a second operating hole 212 formed therein to allow the first fixing table 310 of the first arm 300 to be inserted toward the 211 side.

In the first body 210, the first operation hole 211 through which the wedge 110 is vertically inserted and coupled is formed as a through hole corresponding to the shape of the wedge 110, and the first operation In the upper side of the hole 211, the first fixing table 310 of the first arm 300 is inserted into the first operating hole 211 to selectively contact the inclined surface 112 of the wedge 110. Two operating holes 212 are formed in the form of through holes at equal intervals on the outer circumference of the first body 210 so that the plurality of first fixing units 310 of the first arm 300 are radially arranged.

At this time, while the elastic part 120 of the wedge 110 protrudes from the lower part of the first body 210, the first elastic body 123 is elastically supported at the lower end of the first body 210, and the wedge 110 ) is pulled by the traction device and moves upward, the first elastic body 123 is compressed and the elastic force rises, and when the traction force of the traction device is released, the wedge 110 through the elastic force of the first elastic body 123 descends automatically.

And, the first arm portion 300;

Corresponding to the vertical movement of the first support 100, there is selective contact with the inclined surface 112. When in contact with the inclined surface 112, one or more first fixing units 310 are pushed outward and expanded, and the pile 10 It is pressurized and fixed to the inner circumference of so that the pile 10 is lifted.

For example, the first arm part 300 is formed around the first weight body 200 so as to selectively contact the inclined surface 112 of the first support 100 to the inside of the first weight body 200. A plurality of first fixing units 310 inserted at equal intervals above; further includes.

The plurality of first fixing units 310 are radially inserted around the first weight body 200 at equal intervals. It is inserted into the operating hole 212 and is coupled to enable forward and backward linear movement in the inserted direction, and the first fixing table 310 moves downward to the inside of the first weight body 200 through the second operating hole 212. It is inserted obliquely, and a force to move the first weight body 200 inside is acted upon by the weight of the first fixing table 310, thereby facilitating contact with the inclined surface 112.

At this time, when the first support 100 moves upward during traction and the first support 310 contacts the inclined surface 112, the first support 310 is inserted in an outward direction. While being pushed, the plurality of first fixing units 310 may extend outward from the circumference of the first weight body 200 .

Likewise, when the traction force of the first support 100 is released, the first support 100 descends through the elastic force of the elastic part 120, and the inclined surface 112 is separated from the first fixing table 310, and the first support 100 moves down. The fixing base 310 moves inwardly of the first weight body 200 by its own weight, and the plurality of first fixing bases 310 perform a retraction operation.

Here, the first arm part 300 is hinged to the end of the first fixing table 310 to support the first fixing table 310 in the form of surface contact with the inner circumference of the pile 10; a support plate 400; contains more

The support plate 400 is hinged to the end of the first fixture 310 in the form of a plate body, so that the outer end of the first fixture 310 is easily adhered to the inner circumference of the pile 10 using the support plate 400 The support plate 400 is pressed against the pile 10, and irregularities are formed to increase frictional force.

In more detail, when lifting the pile 10 using the wedge-shaped lifting mechanism 1 of the first embodiment, after inserting the wedge-shaped lifting mechanism 1 into the pile 10 using a traction device, the first When the support 100 is lifted using a traction device, the plurality of first fixing units 310 of the first arm 300 are moved to the outer side of the first weight body 200 by the inclined surface 112 of the first support 100. While being pushed in the direction, the expanded first fixing table 310 is closely supported and fixed to the inner circumference of the pile 10.

At this time, when the plurality of first fixtures 310 are fixed to the pile 10, the weight of the pile 10 is increased while the wedge-shaped lifting mechanism 1 is pulled through the traction device, so that the plurality of first fixtures ( The pile 10 can be fixed to 310, and in this state, the lifting of the pile 10 is performed.

When the lifting of the pile 10 is completed, the traction force is released to move the first support 100 downward, and the inclined surface 112 is lowered by the movement of the first support 100, and the first fixing table ( 310) is released and the extended plurality of first fixtures 310 are returned to their original positions, and the fixing force for the pile 10 is released, separating the wedge-shaped lifting mechanism 1 from the pile 10 to perform lifting. complete

Hereinafter, as another configuration of the present invention, the configuration of each part of the wedge-shaped lifting mechanism of the foundation construction pile according to the second embodiment will be described in detail with reference to FIGS. 3 to 4. Figure 3 is a perspective view of the wedge-shaped lifting mechanism, Figure 4 is a state diagram of the use of the wedge-shaped lifting mechanism.

Looking schematically at the wedge-shaped lifting mechanism 1 of the pile for foundation construction according to this, the second support 500 formed with the second traction hole 511 and the second support plate 512; a second weight body 600 inserted into and supported by the second support 500 and coupled to the first arm part 300; It is configured to include; a second arm portion 700 that is pressurized and fixed to the inner circumference of the pile 10 to lift the pile 10.

The detailed configuration of the wedge-shaped lifting mechanism 1 of the pile for foundation construction constructed as described above will be described in detail with reference to the accompanying drawings.

First, the second support 500;

A second traction hole 511 for traction is formed at the top, a second support plate 512 for supporting the second weight body 600 is formed at the bottom, and while connecting the wedge-shaped lifting mechanism 1 to a crane, etc. It is for supporting the second arm part 700 .

For example, the second support 500 has a second traction hole 511 formed thereon to be pulled, and a second support plate 512 supported by the second weight body 600 is formed at the lower part. (510); is further included.

The post 510 has a second traction hole 511 penetrating through the upper part, and a second support plate 512 protrudes in the form of a plate to be supported by the second weight body 600 at the lower end, and the post ( 510) allows the second traction hole 511 to be connected to a traction device such as a crane.

At this time, when the post 510 is inserted through the inside of the second weight body 600, the second support plate 512 is supported in the form of supporting the bottom of the second weight body 600 and The second weight body 600 is coupled in a seated form, and the post 510 may be supported by the second weight body 600 .

And, the second weight body 600;

It is inserted into and supported by the second support 500, and an inclined hole 612 for coupling the second arm part 700 is formed inwardly, and the second arm part 700 is moved during traction through the second support 500. is to support

For example, in the second weight body 600, a third operation hole 611 is formed so that the post 510 of the second support 500 is inserted through and moves up and down, and the second arm portion 700 It further includes a second body 610 having an inclined hole 612 formed so that the second fixing table 710 is obliquely inserted outwardly and supported.

The second body 610 has a third operation hole 611 formed as a through hole in the center of the second body 610 through which the support 510 is vertically inserted and coupled therein, and the third operation hole A plurality of inclined holes 612 for radially disposing a plurality of second fixing units 710 of the second arm 700 around the circumference of the 611 are formed as through holes having an outward oblique angle, respectively. The two bodies 610 can move up and down while being fitted and coupled to the support 510 through the third operation hole 611 .

At this time, the second body 610 can be towed through the second support 500 while being supported through the second support plate 512 of the holding 510, and coupled to the plurality of inclined holes 612 during the traction. The second arm portion 700 is supported.

And, the second arm portion 700;

A plurality of second fixtures 710 are inserted into the second weight body 600 through the inclined hole 612 and move up and down obliquely outward. The plurality of second fixtures 710 are attached to the pile 10 When inserted, the second fixing table 710 is pushed to the top of the second weight body 600 to perform a retracting operation, and when the second support 500 is pulled, the second weight body 600 is pulled upward. While holding, the second fixing table 710 moves to the lower part of the second weight body 600 and expands, presses and fixes to the inner circumference of the pile 10 so that the pile 10 can be lifted.

For example, the second arm part 700 is fitted through an inclined hole 612 of the second weight body 600, and one or more pluralities are arranged around the second weight body 600 at equal intervals. A second fixture 710; further includes.

The plurality of second fixtures 710 are radially inserted around the second weight body 600 at equal intervals. It is inserted into the inclined hole 612 and is coupled to enable linear reciprocating movement in the inserted direction, and the second fixing table 710 is inserted obliquely outward through the inclined hole 612, The force to move downward under its own weight acts to maintain the plurality of second holders 710 in an expanded state in normal times.

At this time, when the second fixture 710 is pulled through the second support 500 and inserted into the pile 10, the second fixture 710 contacts the inner circumference of the pile 10 and the second weight 600 ), the plurality of second fixtures 710 are retracted while being pushed upward, and when the second weight body 600 is pulled upward through the traction force of the second support 500, the plurality of second fixtures 710 may move to the lower part of the second weight body 600 and expand outward.

Here, the second arm part 700 is hinged to the end of the second fixing table 710 and supports the second fixing table 710 in the form of surface contact with the inner circumference of the pile 10; a support plate 400; contains more

The support plate 400 is hinged to the end of the second fixture 710 in the form of a plate body, so that the outer end of the second fixture 710 is easily adhered to the inner circumference of the pile 10 using the support plate 400 The support plate 400 is pressed against the pile 10, and irregularities are formed to increase frictional force.

In more detail, when the pile 10 is lifted using the wedge-shaped lifting mechanism 1 of the second embodiment, in the process of inserting the wedge-shaped lifting mechanism 1 into the pile 10 using a traction device, the first 2 As the plurality of second fixtures 710 of the arm 700 are maintained in an outwardly extended form, the bent portion of the plurality of second fixtures 710 contacts the inner circumference of the pile 10 and pushes upward. While the plurality of second fixing units 710 perform a retracting operation, the wedge-shaped lifting mechanism 1 can be smoothly inserted into the pile 10 through the operation.

At this time, when the wedge-shaped lifting mechanism 1 is inserted into the pile 10, the second support 500 is pulled by a traction device and the second weight 600 moves upward, and the second As the weight 600 moves upward and is pulled, the plurality of second fixtures 710 move to the lower part of the second weight 600 and expand outward, and the plurality of second fixtures 710 are located on the inner circumference of the pile 10. As the 710 is closely fixed and the weight of the pile 10 is transmitted to the second fixing stand 710, the pile 10 is more firmly fixed to the plurality of second fixing stand 710. The pile 10 fixed as described above is lifted to the construction position, and when the lifting is completed, the traction force acting on the second support 500 is released to move the plurality of second fixtures 710 to the second weight body 600. The fixing force is released while moving to the top of the to close, and the wedge-shaped lifting mechanism 1 is separated from the pile 10 to complete the lifting.

Hereinafter, as another configuration of the present invention, the configuration of each part of the wedge-shaped lifting mechanism of foundation construction piles according to the third embodiment will be described in detail with reference to FIGS. 5 to 6. Figure 5 is a perspective view of the wedge-shaped lifting mechanism, Figure 6 is a state diagram of the use of the wedge-shaped lifting mechanism.

Looking schematically at the wedge-shaped lifting mechanism 1 of the pile for foundation construction according to this, the third support 810 formed with the third traction hole 811a and the first hinge 811b; a third weight body 820 supporting vertical movement of the third support 810 and provided with a second hinge 821d; It is configured to include; a third arm portion 830 that is pressurized and fixed to the inner circumference of the pile 10 to lift the pile 10.

The detailed configuration of the wedge-shaped lifting mechanism 1 of the pile for foundation construction constructed as described above will be described in detail with reference to the accompanying drawings.

First, the third support 810;

A third traction hole 811a for traction is formed at the top, a first hinge 811b to which the third arm 830 is connected is provided at the bottom, and the wedge-shaped lifting mechanism 1 is connected to a crane, etc. 3 It is for supporting the arm part 830.

For example, the third support 810 has a third traction hole 811a formed therein so that it can be towed while being connected to a crane, etc., and a first hinge for hingedly connecting the third arm part 830 to the lower part (811b) is provided with a first support (811); further includes.

The first support 811 has a third traction hole 811a formed as a through hole at the upper portion, and a first hinge 811b for hinge connection of the third arm 830 at the lower portion of the first support 811 One or more protrudes from the lower circumference at equal intervals, and the first hinge 811b has a structure for connecting to the third arm part 830 in a hinge structure.

At this time, when the first support 811 is inserted through the inside of the third weight body 820, the first hinge 811b portion is formed in the lower side surface of the third weight body 820. The first support hole 821b ) through which the third weight body 820 penetrates and protrudes outward, and while the first support 811 is towed through a traction device and moves up and down, the first hinge is attached to the first support hole 821b. As (811b) is caught, the first support 811 is supported by the third weight body 820.

And, the third weight body 820;

The third support 810 is supported to be moved up and down during traction, and a second hinge 821d to which the third arm 830 is connected is provided at the bottom, and the third arm 810 is used during traction. 830 and the vertical movement of the third support 810.

For example, the third weight body 820 is formed with a guide hole 821a through which the first support 811 of the third support 810 is inserted to move up and down, and the third support 810 moves up and down. 3; a third body 821 formed with a second hinge 821d connecting the arm part 830 by a hinge; is further included.

The third body 821 is formed of a guide hole 821a through which the third support 810 is inserted vertically into and coupled thereto through to the lower end of the third body 821, and the third body ( 821), the first support hole 821b through which the first hinge 811b portion of the third support 810 protrudes outward and is inserted around the lower side of the third support 810 is perpendicular to the position of the first hinge 811b. The first support hole 821b has a length corresponding to the vertical movement distance of the third support 810.

At this time, the third body 821 functions as a support to move up and down while the third support 810 is pulled through the guide hole 821a, and through the third support 810 As the 821 is pulled, the third arm 830 connected to the lower part of the third body 821 is supported.

Here, the third weight body 820 includes a third support plate 822 protruding outward from the upper end of the third body 821;

a connecting rod 823 connected to the third support 810 inserted into the third body 821 while being spaced apart from the lower part of the third support plate 822 by an arbitrary interval; and

A second elastic body 824 is inserted between the third support plate 822 and the connecting rod 823 so that an elastic force acts thereon and elastically supports the third support 810 connected through the connecting rod 823 downward. do.

Meanwhile, the third support plate 822 protrudes outward from the upper end of the third body 821 in a plate shape so that the upper end of the second elastic body 824 inserted between the connecting rods 823 is supported.

The connecting rod 823 is provided in the form of a plate spaced apart at an arbitrary distance from the lower side of the third support plate 822, and the outer circumference of the first support rod 811 of the third support 810 to the inside of the connecting rod 823. A protruding portion is formed to be connected to the connecting rod 823 so that the connecting rod 823 can be connected to the first support rod 811 .

At this time, the second support hole 821c is formed on the upper side surface of the third body 821 so that the connecting member 823 penetrates the third body 821 and is connected to the outer circumference of the third support 810. It is formed as a vertical long hole corresponding to the vertical size of the support hole 821b, and the connecting rod 823 moves identically in response to the vertical movement of the third support 810 through the second support hole 821c. do.

The second elastic body 824 is a coil spring that is inserted between the third support plate 822 and the connecting rod 823 to provide elastic force, and the upper and lower ends of the second elastic body 824 are connected to the third support plate 822. While being elastically supported between the connecting rods 823, elastic force is provided to the vertically movable connecting rod 823, and the third support 810 is elastically supported downward by using the elastic force transmitted to the connecting rod 823.

At this time, the third support 810 can be automatically moved downward in a situation where the traction force is released from the third support 810 through the elastic force of the second elastic body 824 .

And, the third arm portion 830;

It is hinged to the first hinge 811b and the second hinge 821d, and the first hinge 811b and the second hinge 821d are used as points in response to the vertical movement of the third support 810. The hinge operates, and while the third support 810 moves upward, it expands outward by the hinge operation to the top and is pressed and fixed to the inner circumference of the pile 10 to lift the pile 10.

For example, the third arm portion 830 is hingedly connected to the first hinge 811b, and one or more first arm units 831 are disposed around the lower circumference of the third weight body 820 at equal intervals. );

The plurality of first arm bands 831 are radially hingedly connected to the first hinge 811b of the third support 810 around the lower circumference of the third weight body 820, and the first arm band 831 is made in the form of a rod, and the other side hinged to the first hinge 811b is press-fixed to the inner circumference of the pile 10, and the second arm band 832 is hingedly connected to the lower center of the first arm band 831. A third hinge 831a is formed to support the first arm stand 831 . The third hinge 831a has a hinge structure connected to the first arm stage 831 so that the second arm stage 832 is hinged.

At this time, the first arm stand 831 operates as a hinge up and down with the first hinge 811b as a fulcrum in response to the up and down movement of the third support 810. When the third support 810 moves upward, the A plurality of first arm bands 831 are lifted upward using the first hinge 811b as a fulcrum and extended outward to be pressed and fixed to the inner circumference of the pile 10, and expanded when the third support 810 moves downward. The pressing force on the pile 10 may be released while the plurality of first arm bands 831 are retracted.

In addition, the third arm unit 830 is hingedly connected to the second hinge 821d, and is hinged to the first arm unit 831 using the third hinge 831a, so that a plurality of first arm units 830 ( 831) is further included; a plurality of second arm stages 832 supporting them.

The plurality of second arm stages 832 are hingedly connected to the second hinge 821d radially around the third weight body 820 under the plurality of first arm stages 831, and the second arm stage ( 832) is formed in a bar shape, and the other side hinged to the second hinge 821d is hingedly connected to the third hinge 831a of the first armrest 831 to support the bottom of the first armrest 831, Corresponding to the up and down movement of the third support 810, the second arm stage 832 functions to support the first arm stage 831 while performing an up and down hinge operation with the second hinge 821d as a fulcrum.

Here, the third arm unit 830 is hinged to the end of the first arm unit 831 so that the first arm unit 831 is supported in a surface contact form on the inner circumference of the pile 10 Support plate 400 ; is further included.

The support plate 400 is hinged to the end of the first arm stand 831 in the form of a plate body, so that the outer end of the first arm stand 831 is easily adhered to the inside of the pile 10 using the support plate 400 The support plate 400 is pressed against the pile 10, and irregularities are formed to increase frictional force.

On the other hand, looking at the structure of lifting the pile 10 using the wedge-shaped lifting mechanism 1 of the third embodiment in more detail, the wedge-shaped lifting mechanism 1 is inserted into the pile 10 using a traction device In the process of doing so, the plurality of first arms 831 of the third arm 830 are lifted in response to the upward movement of the third support 810 and maintained in an outwardly extended form, and when the traction force is released, the While the third support 810 moves downward through the elastic force of the second elastic body 824, the extended plurality of first arm bands 831 are retracted.

On the other hand, when the wedge-shaped lifting mechanism 1 of the third embodiment having the above operating process is inserted into the pile 10, the third support 810 is towed and moved upward using a traction device, and the third support 810 is moved upward. 3 Through the upward movement of the support 810, a plurality of first arm bands 831 of the third arm 830 are lifted through a hinge operation and extended to the inner circumference of the pile 10 to be press-fixed, and the pile ( The pile 10 is more firmly fixed to the third arm part 830 while the weight of 10) acts on the third arm part 830.

At this time, the pile 10 fixed as described above is lifted to the construction position, and when the lifting is completed, the traction force acting on the third support 810 is released so that the third support 810 moves to the second elastic body 824. The fixing force is released while the plurality of first arms 831 are retracted while moving downward with the elastic force of the wedge-shaped lifting mechanism 1 is separated from the pile 10 to complete the lifting.

Hereinafter, as another configuration of the present invention, the configuration of each part of the wedge-shaped lifting mechanism of foundation construction piles according to the fourth embodiment will be described in detail with reference to FIGS. 7 to 8. Figure 7 is a perspective view of the wedge-shaped lifting mechanism, Figure 8 is a state diagram of the use of the wedge-shaped lifting mechanism.

Looking schematically at the wedge-shaped lifting mechanism 1 of the pile for foundation construction according to this, the fourth support 910 formed with the fourth traction hole 911a, the first operating unit 911b and the second operating unit 911c; a fourth weight body 920 supporting vertical movement of the fourth support 910 during traction and having a fourth support plate 921 and a fifth support plate 922; It is configured to include; a fourth arm part 930 that is pressurized and fixed to the inner circumference of the pile 10 to lift the pile 10.

The detailed configuration of the wedge-shaped lifting mechanism 1 of the pile for foundation construction constructed as described above will be described in detail with reference to the accompanying drawings.

First, the fourth support 910;

A fourth traction hole 911a for traction is formed at the top, and a first operating unit 911b and a second operating unit 911c for vertically moving the fourth weight body 920 are formed at the center and bottom. , It is for supporting the fourth weight body 920 and the fourth arm portion 930 while connecting the wedge-shaped lifting mechanism 1 to a crane or the like.

For example, the fourth support 910 has a fourth traction hole 911a formed thereon so that it can be towed while being connected to a crane, etc., and a fourth weight body 920 is placed in the center and at the bottom for vertical movement. It further includes a second support 911 on which the first operating unit 911b and the second operating unit 911c are formed.

The second support 911 has a fourth traction hole 911a formed as a through hole at the top, a first operating part 911b protruding from both sides of the center of the second support 911, and a lower end. The second operating unit 911c protrudes in the form of a plate, and a sixth support plate 911d to which the control tool 911e is coupled protrudes above the first operating unit 911b.

At this time, the first operating unit 911b functions to support the lower movement of the fourth weight body 920 with respect to the fourth support plate 921, and the second operating unit 911c supports the fourth weight body ( 920) is moved up and down, and the sixth support plate 911d is spaced apart at an arbitrary interval above the first operating part 911b and the fourth support plate of the fourth weight body 920 ( 921 provides a space for moving up and down, and provides a coupling space for the manipulation tool 911e to move the fourth support plate 921 up and down. The distance at which the fourth arm 930 extends is determined by the distance between the first operating unit 911b and the sixth support plate 911d.

Meanwhile, the second support 911 is inserted through the fourth weight 920, and the second support 911 is towed through a traction device to move up and down, while the fourth weight 920 will be supported

Here, the fourth support 910 is coupled to the sixth support plate 911d so as to move forward and backward toward the fourth support plate 921 of the fourth weight body 920 so as to move the fourth support plate 921 up and down. It further includes; an operating tool (911e) to do.

The operating tool 911e is screwed in the form of a bolt so that it moves back and forth from the top of the sixth support plate 911d to the fourth support plate 921 of the fourth weight body 920, and can move forward and backward through the spiral, When the control member 911e moves forward, the fourth support plate 921 moves downward, and when the control member 911e moves backward, a space in which the fourth support plate 921 moves upward may be secured.

At this time, the manipulation tool 911e may perform an expansion operation of the fourth arm part 930 through an operation of selectively moving the fourth support plate 921 downward.

And, the fourth weight body 920;

The fourth support plate 921 and the fifth support plate 922 are provided to support the fourth support 910 so as to be moved up and down during traction, and to open or narrow each other vertically, and the fourth support plate 921 And the fourth hinge 421a and the fifth hinge 922a are formed on the fifth support plate 922, respectively, and the fourth arm part 930 and the fourth support 910 during traction through the fourth support 910. This is to support up and down movement.

For example, in the fourth weight body 920, the second support 911 of the fourth support 910 is inserted through, and the upper and lower sides of the fourth support 910 are spaced apart from each other. a fourth supporting plate 921; and a fifth support plate 922;

The fourth support plate 921 is a plate body, and the second support plate 911 penetrates the upper side of the first operating part 911b of the second support plate 911 and is coupled to the sixth support plate of the second support plate 911. The fourth hinge 421a is provided to move up and down between the 911d and the first operating unit 911b, and is hingedly connected to the fourth arm 930 to the lower portion of the fourth support plate 921.

The fifth supporting plate 922 is a plate body and is coupled to the upper side of the second operating unit 911c of the second support unit 911 while the second support unit 911 penetrates, so as to be lifted by the second operation unit 911c. It can move up and down on the ground, and a fifth hinge 922a for hinge-connecting the fourth arm 930 to the upper portion of the fifth support plate 922 is provided.

The fourth hinge 421a and the fifth hinge 922a have a structure in which they are hinged in association with the fourth arm 930, and the fourth support plate 921 and the fifth support plate 922 are connected to the fourth arm part 930. Intervals may be widened or narrowed through an operation in which the support plate 921 moves up and down through the manipulation tool 911e.

And, the fourth arm portion 930;

It is hinged to the fourth hinge 421a and the fifth hinge 922a between the fourth support plate 921 and the fifth support plate 922, and the fourth support plate 921 and the fifth support plate 922 Through the operation, the fourth hinge 421a and the fifth hinge 922a are operated as a fulcrum, and the fourth support 910 is extended outward through the hinge operation during the upward movement of the pile 10 It is pressed and fixed to the inner circumference to lift the pile 10.

For example, the fourth arm part 930 is hingedly connected to the fourth hinge 421a of the fourth weight body 920, and a pair of second arms disposed opposite to each other on both sides of the fourth weight body 920 It further includes; 3 arm bands (931).

The pair of third arm stands 931 are hingedly connected to the fourth hinge 421a of the fourth support plate 921 so as to be oppositely disposed on both sides of the upper portion of the fourth weight body 920, and the third arm stand ( 931) is formed in the form of a rod, one side is connected to the fourth hinge 421a and the other side is hingedly connected to the fourth arm stand 932, and both ends of the third arm stand 931 are connected to the fourth hinge 421a and It has a structure for being hinged in connection with the fourth arm stand 932, and the third arm stand 931 moves up and down with the fourth hinge 421a as a fulcrum in response to the vertical movement of the fourth support plate 921. hinge works

In addition, the fourth arm part 930 is hinged to the fifth hinge 922a of the fourth weight body 920, and a pair of fourth arms disposed opposite to each other on both sides of the fourth weight body 920. Arm band 932; further includes.

The pair of fourth arm stands 932 are hingedly connected to the fifth hinge 922a of the fifth support plate 922 so as to be oppositely disposed on both sides of the lower portion of the fourth weight body 920, and the fourth arm stand ( 932) is formed in the form of a rod, one side is connected to the fifth hinge 922a and the other side is hingedly connected to the third arm stand 931, and both ends of the fourth arm stand 932 are connected to the fifth hinge 922a and It has a structure for being hinged in connection with the third arm stage 931, and the fourth arm stage 932 is connected to the vertical hinge operation of the third arm stage 931 with the fifth hinge 922a as a fulcrum. The top and bottom hinges work.

Meanwhile, the third arm stage 931 and the fourth arm stage 932 respond to the vertical movement of the fourth support plate 921 of the fourth weight body 920 when the fourth support plate 921 moves downward. As the distance between the fourth support plate 921 and the fifth support plate 922 is narrowed, the third arm stand 931 and the fourth arm stand 932 hinged between the fourth support plate 921 and the fifth support plate 922 The hinge connection part of can be extended outward, and when the fourth support plate 921 moves upward, the hinge connection parts of the extended third arm stand 931 and the fourth arm stand 932 are retracted inward. do.

At this time, when the hinge connection portions of the third arm stage 931 and the fourth arm stage 932 are extended outward, the expanded portion is press-fixed to the inner circumference of the pile 10, and the expanded hinge connection portion is inward The compression force can be released by the retracting operation.

Here, the fourth arm part 930 is connected so that elastic force acts between the pair of third arm bands 931 disposed opposite to each other, and the third arm band 931 is pulled to each other using the elastic force. An elastic body 933; is further included.

The third elastic body 933 is a coil spring connected between a pair of third arm bands 931 to provide elastic force, and both ends of the third elastic body 933 are connected to the pair of third arm bands 931, respectively. While being supported, the pair of third arms 931 are maintained to be pulled together by the elastic force of the third elastic body 933 .

At this time, the pair of third arm bands 931 are pulled together through the elastic force of the third elastic body 933, so that the hinge connection portion between the third arm band 931 and the fourth arm band 932 can be narrowed inward. .

Here, the fourth arm unit 930 is the outer end of the hinge connection between the third arm unit 931 and the fourth arm unit 932, and is at the hinge connection side of the third arm unit 931 and the fourth arm unit 932. A support plate 400 that is hinged to be supported in a surface contact form on the inner circumference of the pile 10; further includes.

The support plate 400 is in the form of a plate body and is hinged outward to the hinge connection side of the third arm stage 931 and the fourth arm stage 932, thereby forming a hinge connection portion between the third arm stage 931 and the fourth arm stage 932. The inner circumference of the pile 10 is easily pressed by using the support plate 400, and the surface on which the support plate 400 is pressed to the pile 10 is formed with irregularities to increase frictional force.

On the other hand, looking at the structure of lifting the pile 10 using the wedge-shaped lifting mechanism 1 of the fourth embodiment in more detail, the wedge-shaped lifting mechanism 1 is inserted into the pile 10 using a traction device Then, the elastic force of the third elastic body 933 acts between the pair of third arm bands 931, so that the pair of third arm bands 931 and the pair of fourth arm bands 932 are maintained in a narrowed form. The wedge-shaped lifting mechanism 1 can be naturally inserted into the pile 10.

At this time, when the fourth support plate 921 is moved downward using the control tool 911e, the gap between the fourth support plate 921 and the fifth support plate 922 is narrowed and the fourth support plate 921 and the fifth support plate 921 are moved downward. As the hinged parts of the third arm stand 931 and the fourth arm stand 932 hinged between the support plates 922 are extended outward, the pile 10 is pressed and fixed to the inner circumference, and the weight of the pile 10 is controlled. The pile 10 is more firmly fixed to the fourth arm part 930 while acting on the fourth arm part 930 .

At this time, the pile 10 fixed as described above is lifted to the construction position, and when the lifting is completed, the fourth support plate 921 is moved upward using the control tool 911e while a pair of third arm stands extended outward. 931 and the fourth arm stage 932 are pulled inward to release the fixing force, and the wedge-shaped lifting mechanism 1 is separated from the pile 10 to complete the lifting.

as explained above. Although the present invention has been expressed in descriptions and drawings illustrating specific preferred embodiments, the terms used herein are intended to easily describe the present invention, limit the meaning of these terms, or limit the scope described in the claims. It is not intended to

The present invention can be variously changed, modified, modified, etc. by those skilled in the art to which the present invention pertains within the scope without departing from the spirit and scope of the invention indicated by the claims according to the above embodiments. Anyone can easily see that it is possible.

One; wedge-shaped lifting mechanism 100; 1st support
110; wedge 200; first weight body
210; Body 300; 1st dark part
310; 1st fixture 400; support plate
500; second support 510; landlord
600; second weight body 610; body
700; a second arm portion 710; 2nd fixture

Claims (5)

A first support 100 having a first traction hole 111 for traction at the top and an inclined surface 112 at the bottom;
a first weight body 200 for supporting the first support 100 to move up and down during traction;
Corresponding to the vertical movement of the first support 100, there is selective contact with the inclined surface 112. When in contact with the inclined surface 112, one or more first fixing units 310 are pushed outward and expanded, and the pile 10 A wedge-shaped lifting mechanism of a pile for foundation construction, characterized in that it is configured to include; a second support 500 having a second traction hole 511 for traction formed at the upper portion and a second supporting plate 512 supporting the second weight body 600 at the lower portion;
a second weight body 600 inserted into and supported by the second support 500 and having an inclination hole 612 for coupling the second arm 700 to the inside;
A plurality of second fixtures 710 are inserted into the second weight body 600 through the inclined hole 612 and move up and down obliquely outward. The plurality of second fixtures 710 are attached to the pile 10 When inserted, the second fixing table 710 is pushed to the top of the second weight body 600 to perform a retracting operation, and when the second support 500 is pulled, the second weight body 600 is pulled upward. A second arm portion 700 that presses and fixes to the inner circumference of the pile 10 to lift the pile 10 while the second fixing table 710 moves and expands to the lower portion of the second weight body 600 while being supported; A wedge-shaped lifting mechanism of foundation construction files, characterized in that configured to include. a third support 810 in which a third traction hole 811a for traction is formed at the upper portion and a first hinge 811b to which the third arm 830 is connected is provided at the lower portion;
a third weight body 820 supporting the third support 810 so as to move up and down during traction, and having a second hinge 821d connected to the third arm 830 at the bottom thereof;
It is hinged to the first hinge 811b and the second hinge 821d, and the first hinge 811b and the second hinge 821d are used as points in response to the vertical movement of the third support 810. A third arm part 830 that operates as a hinge and is pressurized and fixed to the inner circumference of the pile 10 to lift the pile 10 while extending outward by the hinge operation to the top during the upward movement of the third support 810; A wedge-shaped lifting mechanism of foundation construction files, characterized in that configured to include. A fourth traction hole 911a for traction is formed at the top, and a first operating unit 911b and a second operating unit 911c for vertical movement of the fourth weight body 920 are formed at the center and bottom. a fourth support 910;
The fourth support plate 921 and the fifth support plate 922 are provided to support the fourth support 910 so as to be moved up and down during traction, and to open or narrow each other vertically, and the fourth support plate 921 and a fourth weight body 920 in which a fourth hinge 421a and a fifth hinge 922a are respectively formed on the fifth supporting plate 922;
It is hinged to the fourth hinge 421a and the fifth hinge 922a between the fourth support plate 921 and the fifth support plate 922, and the fourth support plate 921 and the fifth support plate 922 Through the operation, the fourth hinge 421a and the fifth hinge 922a are operated as a fulcrum, and the fourth support 910 is extended outward through the hinge operation during the upward movement of the pile 10 The wedge-shaped lifting mechanism of the pile for foundation construction, characterized in that it is configured to include; According to claim 1,
The first support 100 has a first traction hole 111 formed thereon so that it can be towed, and an inclined surface 112 is formed on the outer circumferential surface of the lower side so that the inclined surface 112 is moved during traction to the first weight body 200. ) The wedge-shaped lifting mechanism of the pile for foundation work further including;

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