Removable ground anchor body using spring
a technology of ground anchors and springs, which is applied in the direction of bulkheads/piles, foundation engineering, construction, etc., can solve the problems of difficult to easily remove tensile materials, difficult to remove tensile materials, and difficult to separate and remove tensile materials. , to achieve the effect of maximizing the role of the spring, convenient and convenient separation and removal of tensile materials
Inactive Publication Date: 2017-06-15
SAMJIN STEEL IND +1
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Benefits of technology
[0013]An aspect of the present invention is directed to provide a removable ground anchor body using a spring that can maximize and properly cope with the supporting force depending on to the soil behavior, and can easily separate a tensile material such as a PC strand wire coupled to the anchor structure by the manual force.
[0014]Another aspect of the present invention is directed to provide a removable ground anchor body using a spring which allows a safe and perfect assembly and coupling state even in case of the movement of the anchor body and the external impact in the field, prevents the erroneous operation, and improves the reliability of the product.
[0015]Still another aspect of the present invention is directed to provide a removable ground anchor body using a spring that allows easier re to coupling by rotation even when the coupling state of the anchor body is separated.
[0017]Therefore, according to the removable ground anchor body using the spring of the present invention, since the stopper of the body is controlled to be located between the locking protrusion and the stopper presser, and the elasticity of each of the rotating main spring and the buffering auxiliary spring acts on the upper and lower portions of the strand wire wedge, it is possible to maintain a proper elasticity even in the case of an external impact, and the elasticity strength of the rotating main spring and the buffering auxiliary spring are offset at the upper and lower portions. Thus, the strand wire wedge can maintain a continually stable and perfect assembled state even in the case of in the front end of the tensile material.
[0018]In addition, when removing the tensile material, since the stopper of the body is already in a removed state, the strand wire wedge can completely separate and remove the tensile material away from the tapered hole, and at the same time, when the tensile material rotates, the elasticity of the buffering auxiliary spring acts on the waterproof cap side to induce the strand wire wedge to smoothly escape from the tapered hole of the wedge hold. Thus, it is possible to conveniently separate and remove the tensile material only by the man power using a basic device.
[0019]In particular, since the wedge holder and the head coupler are separately installed, there is an effect capable of preventing the tensile material of the strand wire or the like from coming off due to any impact, maximizing the role of the spring and facilitating the removal of the tensile material.
Problems solved by technology
Since the tensile material has outstanding strength, if it is left in the ground it becomes a ground obstacle, and there is a risk of causing a problem such as the ground compensations in future development of adjacent land.
However, even when retracting the wedge, the expansion is not correctly performed, and even when the wedge is moved back to perform the expansion, since the spring provided in its rear end continuously presses the wedge, there is still a problem in that a burden may occur upon removal of the tensile material and the separation may not be performed correctly.
In the conventional removable internal fixing agent, there was a problem in that it was not possible to easily remove the tensile material in the future, when an impact is applied to the internal fixing material of the PC strand wire in the course of transporting the PC strand wire manufactured in the factory to a construction site or in the course of handling at the time of construction work.
Furthermore, since it is almost impossible to re to assemble the anchor body in which the coupled state is separated due to the external impact in the field, a major obstacle was caused in the progression of construction.
There is a technique of Korean Patent Registration No. 10-0963565 in which these problems are improved, although such a technique presses the wedge by elasticity of the upper spring to continually maintain the bound state with the tensile material and allows the re-coupling, while suppressing the wedge from being separated due to the external impact during transportation or handling process, there were drawbacks in which it was not possible to basically prevent the separation of the tensile material due to the spring contraction caused by external impact energy from the outside, and it was not possible to remove the tensile material by the man power after the installation of the slope.
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[0027]Exemplary embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Wherever possible, the same reference numerals will be used to refer to the same elements throughout the specification, and a duplicated description thereof will be omitted. It will be understood that although the terms “first”, “second”, etc. are used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element.
[0028]Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
[0029]As illustrated in FIGS. 1 to 6, a removable ground anchor body 1 using a spring that includes a waterproof cap 110 formed with an upward screw groove 111 from an inner lower end; a housing 120 that is coupled to a lower end of the waterproof cap 110 and is formed with a locking protrusion 121 corresponding to t...
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A removable ground anchor body uses a spring and includes: a waterproof cap formed with an upward screw groove at an inner lower end; a housing that is coupled to a lower end of the waterproof cap and is formed with an upward locking protrusion therein; a body that is formed with a rotating main spring coupled to a screw groove of the waterproof cap at the top and is formed with a stopper on an outer peripheral edge to be locked to the locking protrusion of the housing; a stopper presser that is installed between the waterproof cap and the body and brings the lower end into close contact with the stopper upper surface of the body; a strand wire wedge; a wedge hold; and a head coupler.
Description
CROSS REFERENCES TO RELATED APPLICATIONS[0001]This application claims priority to Korean Patent Application No. 10-2015-0179334, filed on 15 Dec. 2015, in the Korean Intellectual Property Office, the contents of which is hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]Field of the Invention[0003]The present invention relates to a removable ground anchor body using a spring, and more particularly, to a removable ground anchor body using a spring that is coupled to an end portion of a fixing portion of a PC strand wire such that a perfect coupling state is kept even by movement or external impact in the field and at the same time a tensile material such as a PC strand wire can be easily separated and removed even by man power.[0004]Description of the Related Art[0005]In general, a slope reinforcement structure coupled with a PC strand wire is to form holes in the ground by drilling, insert a tensile material with excellent tensile strength into the dr...
Claims
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IPC IPC(8): E02D5/80
CPCE02D5/80E02D2220/00E02D2600/30E02D5/801E02D5/765E02D5/808
InventorSHIN, HYUN TAIK
OwnerSAMJIN STEEL IND