KR100998589B1

KR100998589B1 - Multipurpose Fixing Device of Rock-Bolt

Info

Publication number: KR100998589B1
Application number: KR1020080039167A
Authority: KR
Inventors: 장봉환
Original assignee: (주)서림건설
Priority date: 2008-04-28
Filing date: 2008-04-28
Publication date: 2010-12-07
Also published as: KR20090113443A

Abstract

본 발명에 따른 락볼트의 다목적 선단정착구에 관한 것으로, 외주연에 나사산이 형성되어 앵커공(A) 내부에 삽입되는 락볼트(R)와, 상기 락볼트(R) 선단부에 결합되어 앵커공(A) 내부에 락볼트(R)와 함께 삽입되는 락볼트 선단정착구(RF)에 있어서, 상기 락볼트 선단정착구(RF)는 상기 앵커공(A) 내측에 삽입되고, 락볼트(R)의 선단부가 결합되는 락볼트결합공(114)이 형성된 락볼트정착헤드(100)와; 중앙으로 상기 락볼트 선단부 일측으로 결합되는 나사산이 형성된 결합공(132)이 구비되고, 상기 락볼트정착헤드(100) 내측으로 구비되어 락볼트 인장시 락볼트정착헤드(100)와 락볼트(R)가 견고히 고정토록 마련된 락볼트 고정부재(130)와; 일단에 연결편(210)이 형성되고, 상기 락볼트정착헤드(100)의 외연둘레로 위치되어 앵커공(A) 축선상의 외측 지반에 확대 고정되는 다수의 쐐기식 확장부재(200)와; 상기 다수의 쐐기식 확장부재(200)의 연결편(210)에 각각 연결결합되고, 상기 락볼트정착헤드(100) 외연을 따라 다수의 쐐기식 확장부재(200)가 이동되어 앵커공(A) 지반에 확대 고정되도록 다수의 쐐기식 확장부재(200)에 탄발력이 인가토록 압축탄성부재(330)가 마련된 탄성정착수단(300); 을 포함하는 락볼트의 다목적 선단정착구에 관한 것이다.The present invention relates to a multi-purpose tip anchoring hole of a rock bolt according to the present invention, wherein a screw thread is formed at an outer circumference thereof to be inserted into an anchor hole (A), and the anchor bolt is coupled to the front end of the rock bolt (R). A) In the lock bolt tip anchoring hole (RF) inserted together with the lock bolt (R) therein, the rock bolt tip fixing hole (RF) is inserted into the anchor hole (A), the front end of the lock bolt (R) A lock bolt fixing head 100 having a lock bolt coupling hole 114 formed therein; In the center is provided with a coupling hole 132 is formed threaded to be coupled to the front end of the lock bolt, the lock bolt fixing head 100 is provided inside the lock bolt fixing head 100 and the lock bolt (R) during tensioning Rock bolt fixing member 130 is provided to be firmly fixed; A plurality of wedge-type expansion members (200) formed at one end thereof and positioned around the outer circumference of the lock bolt fixing head (100) to be enlarged and fixed to the outer ground on the anchor hole (A) axis; A plurality of wedge-type expansion members 200 are respectively connected and coupled to the connection pieces 210 of the plurality of wedge-type expansion members 200, and the wedge-type expansion members 200 are moved along the outer edge of the lock bolt fixing head 100. Elastic fixing means 300 provided with a compressive elastic member 330 such that elastic force is applied to the plurality of wedge-type expansion members 200 so as to be enlarged and fixed thereto; It relates to a multi-purpose tip anchorage of the rock bolt comprising a.

락볼트, 선단정착구, 압축탄성부재, 홀딩해제수단. Lock bolts, tip fasteners, compression elastic members, holding release means.

Description

Multipurpose Fixing Device of Rock-Bolt}

본 발명은 락볼트의 다목적 선단정착구에 관한 것으로, 더욱 상세하게는 경사면 및 터널 굴착 등에 따른 연약 암반을 안정화시켜 보강하기 위한 보강재인 락볼트의 선단부에 마련되는 락볼트 선단정착구 일측으로 홀딩해제수단이 구비된 홀딩부재가 형성되고, 홀딩부재상에 압축탄성부재가 압축부재에 의해 홀딩부재측으로 압축됨과 함께 홀딩해제수단에 의해 고정결합되며, 외부로부터 압축공기에 의해 홀딩해제수단이 작동되면 압축탄성부재의 압축상태를 해제하게되고, 그에 따라 압축탄성부재의 탄발력이 다수의 쐐기식 확장부재로 인가되고, 다수의 쐐기식 확장부재는 앵커공 내의 지반에 정착됨으로써, 앵커의 인발에 대한 버팀력이 그라우트 주입 경화에 의해 이루어지지 않고, 지반의 상태에 상관없이 즉시 인장이 가능하여 앵커가 앵커공에 이탈되지 않도록 구성되며, 이후 락볼트가 앵커공의 축선상의 중심부에 위치되어 앵커공의 선단정착구가 삽입된 내부로 그라우팅재를 주입 경화시켜 지반의 붕괴를 막을 수 있도록 지반에 더욱 견고한 인장응력, 전단응력 및 휨모멘트에 저항할 수 있는 락볼트의 다목적 선단정착구에 관한 것이다. The present invention relates to a multi-purpose tip anchorage of the rock bolt, and more particularly, the holding release means to one side of the rock bolt tip anchorage provided on the tip of the rock bolt is a reinforcement for stabilizing and reinforcing the soft rock according to the slope and tunnel excavation The holding member is formed, the compression elastic member is compressed onto the holding member by the compression member on the holding member and fixedly coupled by the holding release means, and when the holding release means is operated by the compressed air from the outside, the compression elastic member is activated. The compressed state of the elastic member is released, and thus the elastic force of the compressive elastic member is applied to the plurality of wedge-type expansion members, the plurality of wedge-type expansion members are settled on the ground in the anchor hole, so that the holding force for pulling out the anchor is It is not made by grout injection hardening and can be immediately tensioned regardless of the condition of the ground so that the anchor The lock bolt is positioned at the center of the axis of the anchor hole so that the grouting material is injected into the inside of the anchor hole where the anchor hole is inserted, thereby preventing the collapse of the ground. A multipurpose tip anchorage of a lock bolt capable of resisting stress and bending moment.

일반적으로 터파기, 흙막이, 철도 및 도로에 인접한 자연 및 인공사면의 보강, 지하구조물 및 터널 등과 같은 토목 관련 시설물 축조에 필요한 굴착 지보체계, 기존 옹벽의 보수 및 옹벽을 설치하는 공사에 사용되는 락볼트는 벽면에 구멍을 뚫고 그 속에 볼트를 끼운 다음 너트를 단단히 죔으로써, 굴착시 발파 등으로 인하여 연약해진 암반을 견고하고 안정된 암반에 고정시켜 암반의 보강 및 낙석을 방지하는 데 사용되고 있다. 이러한 락볼트는 굴착 암반면의 안정을 위하여 삽입되는 것으로서 암반을 일체화시켜 인장응력, 전단응력 및 휨모멘트에 저항할 수 있으며, 연약암반의 전단저항력을 향상시켜 굴착한 연약암반에서 발생할 수 있는 균열이나 붕괴 등의 문제점을 해결하고, 작업의 안정성을 도모하는 것을 목적으로 주로 사용된다In general, rock bolts are used for excavation support systems required for construction of civil engineering facilities such as reinforcement of natural and man-made slopes adjacent to trenches, muds, railways and roads, underground structures and tunnels, repair of existing retaining walls, and installation of retaining walls. Is used to prevent rock reinforcement and rockfall by fixing rock to soft rock due to blasting during excavation by inserting a bolt into the wall and fastening the nut. These rock bolts are inserted for stabilization of the excavated rock surface to integrate the rock and resist tensile stress, shear stress, and bending moment, and improve the shear resistance of the soft rock. It is mainly used for the purpose of solving problems such as collapse and promoting the stability of work.

상술한 바와 같은 종래의 락볼트의 시공방법을 살펴보면, 도 1에 도시된 바와 같이, 암반표면에서 심층암반부까지 천공하여 앵커공(1)가 형성되고, 상기 앵커공(1)의 내부에 접착제(2)를 삽입한 후에 락볼트(3)를 정착시킨다. 정착이 완료되면 상기 앵커공(1)입구(1a)에 그라우팅주입호스(4)가 설치된 그라우팅흐름 방지캡(5)을 설치하여 그라우팅으로 주변을 밀봉,경화시킨후, 그라우팅 ㅎ흐름방지캡(5)에 설치된 그라우팅주입호스(4)를 통해 앵커공(1)내부에 그라우팅을 충진시킨다. 이렇게 그라이팅 충진이 완료되면 락볼트(3)의 암반청공부(1) 외측 일단에 너트(7)를 이용하여 지압판(6)을 고정된다. 따라서, 시공되는 락볼트(3)는 암반표면에 노출된 암반을 심층암반부에 고정된 락볼트의 인장력을 이용하여 심층암반부에 붙잡아두게 되어 탈락되는 것을 방지하게 된다.Looking at the construction method of the conventional rock bolt as described above, as shown in Figure 1, the anchor hole (1) is formed by drilling from the rock surface to the deep rock mass, and the adhesive inside the anchor hole (1) After (2) is inserted, the lock bolt 3 is fixed. When the fixing is completed, the grouting flow prevention cap (5) is installed in the anchor hole (1) inlet (1a) by installing a grouting flow prevention cap (5) to seal and harden the surroundings by grouting, grouting flow prevention cap (5) The grouting is filled into the anchor hole (1) through the grouting injection hose (4) installed in the). When the filling is completed in this way, the pressure plate 6 is fixed to the outer end of the rock-blue hole 1 of the rock bolt 3 using the nut 7. Therefore, the rock bolt 3 to be constructed is to hold the rock exposed on the rock surface to the deep rock by using the tension of the rock bolt fixed to the deep rock to prevent the rock from falling off.

그러나, 종래의 락볼트는 단순히 앵커공에 끼워진 것에 불과하여 사면을 안정적으로 보강할 수 없으며, 비탈면의 상부측의 앵커공에 그라우팅 타설 후, 5~7일 경화시킨 다음 하부 앵커공에 락볼트삽입 및 그라우팅 작업이 이루어짐으로써, 시공 기간이 장기간 소요되는 문제점이 있었다.However, the conventional rock bolt is simply inserted in the anchor hole and can not reinforce the slope stably. After grouting is poured into the anchor hole on the upper side of the slope, it is cured for 5 to 7 days and then the rock bolt is inserted into the lower anchor hole. And since the grouting operation is made, there was a problem that the construction period takes a long time.

또한, 상기와 같은 종래 락볼트는 암반사면에 경사지게 형성된 앵커공에 락볼트를 삽입한 후 그라우팅재를 주입하여 경화하게 되는데, 이때, 앵커공은 사면으로부터 하향경사지게 천공되어 있어 앵커공에 삽입되는 락볼트의 선단부가 자체하중과 중력에 의해 앵커공 축선상의 중앙에 위치하지 않고 축선상의 하부면에 닿게 된다. 이와 같이 락볼트가 앵커공 축선상의 하부면에 하중과 중력에 의해 선단부가 접하게 되면 그라우팅재를 앵커공 내부에 주입할 때 락볼트와 그라우팅재가 경화되는 과정에서 락볼트가 앵커공의 중심부에서 정착되지 않고 앵커공 축선상의 하부면으로 기울어져 접하여 있기 때문에 앵커공 내부에 주입되어 경화되는 그라우팅재와의 정착강도가 약화되는 문제점이 있었다. 그리고, 정착강도의 약화로 인한 암반사면의 전단 강도가 저하되어 암반의 균열이나 붕괴가 손쉽게 일어나며 철근이 부식되어 유지보수비용의 증가 및 안전상의 문제점이 있었다.In addition, the conventional rock bolt as described above is hardened by injecting the grouting material after inserting the rock bolt in the anchor hole formed inclined to the rock reflection surface, the anchor hole is drilled downward slope from the slope to be inserted into the anchor hole The tip of the bolt is not centered on the anchor hole axis by its own load and gravity, but rather touches the lower surface of the axis. As such, when the rock bolt is in contact with the lower end of the anchor hole axis by load and gravity, the rock bolt is not settled at the center of the anchor hole during the curing process of the rock bolt and the grouting material when the grouting material is injected into the anchor hole. Since the contact surface is inclined to the lower surface on the anchor hole axis, there is a problem that the fixing strength with the grouting material injected into the anchor hole and hardened. In addition, the shear strength of the rock slope due to the weakening of the anchoring strength is lowered, so that the crack or collapse of the rock easily occurs, the rebar is corroded, there is an increase in maintenance costs and safety problems.

그리고, 상기와 같은 종래 락볼트는 앞서 말한 바와 같이 락볼트의 하중과 중력에 의해 앵커공 축선상의 하부면에 기울어져 접하여 락볼트가 휨변형되고, 그라우팅재를 주입 경화 후에는 내부 암반의 압력 등에 의해 락볼트가 에스(S)자로 변형이 이루어지기 쉬워 시공불량 등에 의한 안전사고 및 구조적 안정성의 확보가 힘든 문제점이 있었다. As described above, the conventional rock bolt is inclined to contact with the lower surface of the anchor hole axis by the load and the gravity of the rock bolt, and the rock bolt is warped and deformed. As a result, the rock bolt is easily deformed into the S (S), and it is difficult to secure safety accidents and structural stability due to poor construction.

따라서, 본 발명은 상술한 바와 같은 문제점을 해결하기 위해 창출한 것으로, 각종 토목 공사의 굴착시에 연약암반이 붕괴되지 않도록 연약암반의 사면을 안정화시키는 락볼트 선단정착구를 압축공기에 의한 홀딩해제수단의 작동에 따라 압축탄성부재가 다수의 쐐기식 확장부재에 탄발력을 인가하게 되고, 이에 따라 다수의 쐐기식 확장부재가 앵커공 내의 지중에 빠르고 견고히 고정됨으로써, 그라우팅재를 앵커공에 충진하기전에 인장이 가능하고, 이로 인해 락볼트이 앵커공의 축선상 중심부에 위치되어 수평을 유지한 상태로 시공된 후, 그라우팅재를 주입하여 경화시켜, 토압에 의한 변형이 현저히 적으며, 더욱 견고한 인장응력, 전단응력 및 휨모멘트에 저항할 수 있는 락볼트의 다목적 선단정착구를 제공하는데 그 목적이 있다. Accordingly, the present invention has been made to solve the above problems, the means for releasing the rock bolt end anchoring means for stabilizing the slope of the soft rock so as not to collapse during the excavation of various civil works by compressed air According to the operation of the compression elastic member to apply a resilience force to a plurality of wedge-type expansion member, accordingly, a plurality of wedge-type expansion member is fast and firmly fixed to the ground in the anchor hole, before filling the grouting material into the anchor hole The tension is possible, and the lock bolt is located at the center of the anchor hole in the center of the anchor hole to be horizontally constructed, and then the grouting material is injected and cured, and the deformation due to earth pressure is significantly less. Its purpose is to provide a versatile tip anchorage of a rock bolt that can resist shear stresses and bending moments.

또한, 본 발명은 락볼트선단부에 결합되는 락볼트 선단정착구에 의해 시공기간의 단축되고 이로 인한 시공비의 절감과 더욱 안정된 사면의 보강으로 뛰어난 안전성이 확보됨과 함께 락볼트이 앵커공의 축선상 중심부에서 그라우팅재와 경화되어 철근의 노출에 따른 부식이 방지되고, 유지보수비용이 절감되는 락볼트의 다목적 선단정착구를 제공하는데 또 다른 목적이 있다.In addition, the present invention is shortened by the lock bolt end anchoring hole coupled to the rock bolt end portion, the construction time is shortened, thereby reducing the cost of construction and more stable slope reinforcement and excellent safety is secured with the bolt bolt grouting in the central axis of the anchor hole Another object is to provide a multi-purpose end anchorage of rock bolts that is hardened with ash to prevent corrosion due to rebar exposure and reduced maintenance costs.

이와 같은 목적을 달성하기 위하여 본 발명에 따른 락볼트의 다목적 선단정착구는 외주연에 나사산이 형성되어 앵커공(A) 내부에 삽입되는 락볼트(R)와, 상기 락볼트(R) 선단부에 결합되어 앵커공(A) 내부에 락볼트(R)와 함께 삽입되는 락볼트 선단정착구(RF)로, 상기 락볼트 선단정착구(RF)는 상기 앵커공(A) 내측에 삽입되고, 락볼트(R)의 선단부가 결합되는 락볼트결합공(114)이 형성된 락볼트정착헤드(100)와; 중앙으로 상기 락볼트 선단부 일측으로 결합되는 나사산이 형성된 결합공(132)이 구비되고, 상기 락볼트정착헤드(100) 내측으로 구비되어 락볼트 인장시 락볼트정착헤드(100)와 락볼트(R)가 걸림결합되어 견고히 고정토록 마련된 락볼트 고정부재(130)와; 일단에 연결편(210)이 형성되고, 상기 락볼트정착헤드(100)의 외연둘레로 위치되어 앵커공(A) 축선상의 외측 지반에 확대 고정되는 다수의 쐐기식 확장부재(200)와; 상기 다수의 쐐기식 확장부재(200)의 연결편(210)에 각각 연결결합되고, 상기 락볼트정착헤드(100) 외연을 따라 다수의 쐐기식 확장부재(200)가 이동되어 앵커공(A) 지반에 확대 고정되도록 다수의 쐐기식 확장부재(200)에 탄발력이 인가토록 압축탄성부재(330)가 마련된 탄성정착수단(300); 을 포함하고, 상기 락볼트정착헤드(100)는 상기 다수의 쐐기식 확장부재(200)가 둘레로 위치되어 타측으로 이동시 확대되도록 일측에서 타측으로 직경이 확대되는 테이퍼면(112)이 형성되고, 일측 중앙에서 타측 중앙으로 관통된 락볼트결합공(114)이 형성되며, 상기 락볼트결합공(114) 일단 내주연을 따라 걸림단턱(116)이 마련된 암나사(118)가 형성된 콘형부(110)와; 일측으로 상기 콘형부(110)의 암나사(118)와 나사결합되는 수나사(122)가 형성되고, 내측으로 상기 락볼트 고정부재(130)가 내설되는 수용부(124)가 형성되며, 앵커공(A)의 내부 바닥측으로 삽입되어 위치되는 락볼트헤드부(120);로 형성되되, 상기 탄성정착수단(300)은 양측으로 결합공(312)이 각각 구비되고, 상기 다수의 쐐기식 확장부재(200)의 연결편(210)에 일측이 핀 결합되는 길이방향으로 길게 형성된 다수의 연결회동바(310)와; 일측으로 상기 연결회동바(310)의 타측 결합공(312)에 핀 결합되고, 타측으로 축선상으로 길게 원통형으로 연장형성된 끼움부(322a)가 마련되며, 상기 끼움부(322a) 타측 일면으로 걸림홈(322b)이 형성된 압축부재(320)와; 상기 압축부재(320)의 끼움부(322a)에 끼움결합되고, 압축부재(320)와 결합된 다수의 쐐기식 확장부재(200)측으로 탄발력이 인가토록 마련된 압축탄성부재(330)와; 일측으로 상기 압축부재(320)가 슬라이딩 결합되어 압축탄성부재(330)를 압축한 상태를 유지토록 마련된 홀딩해제수단(400)이 형성되고, 타측으로 상기 압축탄성부재(330)가 쐐기식 확장부재측으로 탄발력을 인가하도록 상기 락볼트(R) 외주연에 고정되는 홀딩부재(340)와; 상기 홀딩부재(340)를 락볼트(R)의 외주연에 고정토록 구비된 스톱볼트(350);를 포함하는 것을 특징으로 한다.In order to achieve the above object, the multi-purpose end fitting of the rock bolt according to the present invention has a thread formed on the outer periphery of the rock bolt (R) inserted into the anchor hole (A), and coupled to the rock bolt (R) front end portion. And the lock bolt tip anchoring hole (RF) inserted into the anchor hole (A) together with the lock bolt (R), and the rock bolt tip anchoring hole (RF) is inserted into the anchor hole (A) and the lock bolt (R). Rock bolt fixing head 100 is formed with a lock bolt coupling hole 114 is coupled to the front end of the; In the center is provided with a coupling hole 132 is formed threaded to be coupled to the front end of the lock bolt, the lock bolt fixing head 100 is provided inside the lock bolt fixing head 100 and the lock bolt (R) during tensioning Lock bolt fixing member 130 is provided to be firmly fixed to the engaging; A plurality of wedge-type expansion members (200) formed at one end thereof and positioned around the outer circumference of the lock bolt fixing head (100) to be enlarged and fixed to the outer ground on the anchor hole (A) axis; A plurality of wedge-type expansion members 200 are respectively connected and coupled to the connection pieces 210 of the plurality of wedge-type expansion members 200, and the wedge-type expansion members 200 are moved along the outer edge of the lock bolt fixing head 100. Elastic fixing means 300 provided with a compressive elastic member 330 such that elastic force is applied to the plurality of wedge-type expansion members 200 so as to be enlarged and fixed thereto; The lock bolt fixing head 100 includes a tapered surface 112 having a diameter extending from one side to the other side such that the plurality of wedge-type expansion members 200 are positioned around and enlarged when moved to the other side. Cone part 110 is formed with a female bolt 118 is provided with a lock bolt coupling hole 114 penetrated from the center of one side to the other center, the locking step jaw 116 is provided along the inner circumference of one end of the lock bolt coupling hole 114. Wow; The male screw 122 is screwed to the female screw 118 of the cone-shaped portion 110 is formed on one side, the receiving portion 124 is formed in the lock bolt fixing member 130 is formed inward, anchor hole ( Rock bolt head portion 120 is inserted into the inner bottom side of the position A; is formed, the elastic fixing means 300 is provided with coupling holes 312 on both sides, the plurality of wedge-type expansion member ( A plurality of connection pivot bars 310 formed to extend in a longitudinal direction in which one side of the connection piece 210 of the 200 is pin-coupled; A pin is coupled to the other side coupling hole 312 of the connecting pivot bar 310 to one side, the other side is provided with a fitting portion (322a) extending in the form of a long axis in the axial direction, the fitting portion 322a is caught on the other side A compression member 320 having a groove 322b formed therein; A compression elastic member 330 fitted to the fitting portion 322a of the compression member 320 and provided with elastic force applied to the plurality of wedge-type expansion members 200 coupled to the compression member 320; One side of the compression member 320 is slidingly coupled to hold the holding release means 400 is provided to maintain the compressed elastic member 330 in a compressed state, the other side the compression elastic member 330 is a wedge-type expansion member A holding member 340 fixed to the outer circumference of the lock bolt R to apply an elastic force to the side; And a stop bolt 350 provided to fix the holding member 340 to the outer circumference of the rock bolt R.

삭제delete

그리고, 상기 쐐기식 확장부재(200)는 일측으로 상기 연결회동바(310)의 양측으로 형성된 결합공(312)에 핀결합되도록 핀공(212)이 형성된 포크형상의 연결편(310)과; 타측으로부터 상기 연결편(210)측으로 두께가 확대형성되고, 외연 일측 으로 O-링홈(222)이 형성된 정착편(220)과; 상기 정착편(220)의 O-링홈(222)에 결합되고, 쐐기식 확장부재(200)가 앵커공(A) 축선상의 지반측으로 벌어지는 것이 방지되도록 마련된 O-링(230)과; 상기 정착편(220) 외연으로 앵커공(A) 내측 지중에 정착시 더욱 견고히 정착되도록 마련된 예각을 이룬 다수의 정착돌기(240);가 형성된 것을 특징으로 한다.The wedge-type expansion member 200 includes a fork-shaped connecting piece 310 formed with a pin hole 212 so as to be pinned to a coupling hole 312 formed at both sides of the connection pivot bar 310 on one side thereof; A fixing piece 220 having a thickness extending from the other side toward the connecting piece 210 and having an O-ring groove 222 formed at one side of the outer edge thereof; An O-ring (230) coupled to the O-ring groove (222) of the fixing piece (220), and provided to prevent the wedge-type expansion member (200) from spreading to the ground side on the anchor hole (A) axis; A plurality of fixing projections 240 formed at an acute angle provided to be more firmly fixed when anchored in the anchor hole (A) inside the outer edge of the fixing piece 220;

한편, 상기 압축부재(320)는 일측으로 상기 홀딩해제수단(400)에 의해 걸림결합토록 걸림홈(322b)이 형성되고, 축선상의 길이방향으로 길게 형성된 원통형상의 끼움부(322a)와; 타측으로 상기 끼움부(322a)의 직경보다 크게 형성되어 상기 압축탄성부재(330)의 일단이 안치되도록 단을 이루고, 외측 외연둘레로 상기 연결회동바(310)의 타측 결합공(312)에 핀 결합되는 다수의 결합편(324b)이 형성된 안치헤드부(324a)와; 상기 끼움부(322a) 일단에서 상기 안치헤드부(324a) 타단으로 연통형성된 중공의 슬라이드공(326);이 형성된 것을 특징으로 한다.On the other hand, the compression member 320 has a locking groove (322b) is formed to be engaged by the holding release means 400 to one side, the cylindrical fitting portion (322a) formed long in the longitudinal direction on the axis; The other side is formed larger than the diameter of the fitting portion (322a) to form a stage so that one end of the compressive elastic member 330 is set, the outer side of the outer periphery of the connecting hole 310 of the connecting pin 312 pin A settling head portion 324a having a plurality of coupling pieces 324b coupled thereto; A hollow slide hole 326 formed in communication with the other end of the settling head portion 324a at one end of the fitting portion 322a;

또한, 상기 압축탄성부재(330)는 다수의 쐐기식 확장부재(200)가 락볼트정착헤드(100)의 콘형부(110)의 테이퍼면(112)을 따라 이동확장되어 앵커공(A) 내측의 지중에 견고히 정착되도록 압축에 의한 탄발력이 작용되는 탄성코일스프링으로 형성된 것이 바람직하다.In addition, the compression elastic member 330 is a plurality of wedge type expansion member 200 is extended to move along the tapered surface 112 of the cone-shaped portion 110 of the lock bolt fixing head 100 inside the anchor hole (A) It is preferable that it is formed of an elastic coil spring in which elastic force by compression is applied to firmly settle the ground.

한편, 상기 홀딩부재(340)는 일측으로 상기 압축부재(320)의 슬라이드 공(326)에 슬라이딩결합되어 축선상으로 압축부재(320)가 가이드되도록 길이방향으로 길게 형성된 원통형의 가이드부(342a)와; 상기 가이드부(342a) 일단으로부터 타단으로 관통형성되어 락볼트(R)이 관통결합되는 락볼트 통공(344)과; 상기 가이드부(342a) 타측으로 직경이 크게 연장형성되고, 상기 스톱볼트(350)에 의해 락볼트(R)에 고정결합되도록 외주연 일면으로부터 상기 락볼트통공(344)으로 관통형성된 스톱볼트공(346c)이 구비되며, 가이드부(342a)와 접하는 일면을 따라 상기 압축부재(320)의 타단 일면의 걸림홈(322b)이 홀딩위치상으로 안내결합토록 홀딩안내홈(346b)이 형성되고, 상기 압축부재(320)가 가이드부(342a)상에서 슬라이딩 위치이동되어 압축탄성부재(330)를 압축고정토록 홀딩안내홈(346b) 내연 일측으로 홀딩해제수단(400)이 마련된 홀딩헤드부(346a);가 형성된 것을 특징으로 한다.On the other hand, the holding member 340 is slidingly coupled to the slide ball 326 of the compression member 320 to one side of the cylindrical guide portion 342a formed long in the longitudinal direction to guide the compression member 320 on the axis line Wow; A rock bolt through-hole 344 formed through the guide portion 342a from one end to the other end to be coupled with the lock bolt R; The stop bolt hole penetrated into the lock bolt through hole 344 from the outer circumferential surface of the guide part 342a so as to extend in diameter to the other side and fixedly coupled to the lock bolt R by the stop bolt 350 ( 346c is provided, and a holding guide groove 346b is formed to guide-couple the locking groove 322b of the other end of the compression member 320 to a holding position along one surface in contact with the guide portion 342a. A holding head portion 346a provided with a releasing means 400 holding one side of the compression elastic member 330 in the compression guide member 330 so that the compression elastic member 330 is compressed and fixed to the inner side of the holding member groove 346b; Characterized in that formed.

여기서, 상기 홀딩해제수단(400)은 홀딩헤드부(346a)의 홀딩안내홈(346b) 내연 일측으로 형성되되, 상기 홀딩헤드부(346a)의 가이드부(342a)측 단부면으로 개방된 중공의 실린더(410)와; 상기 실린더(410) 내연으로부터 상기 홀딩안내홈(346b)측으로 연통된 볼승강공(412)과; 앵커공(A) 외부로부터 연장형성되어 압축공기가 유통되도록 마련된 공기유입관(420)과; 상기 홀딩헤드부(346a)의 가이드부 반대편측 단부면에 상기 실린더(410)와 연통형성되고, 공기유입관(420)의 일단부가 결합되는 공기유입관 결합부(422)와; 상기 볼승강공(412)에 상하이동가능토록 결합되는 홀딩볼(430)과; 상기 공기유입관(420)으로부터 유입되는 압축공기에 의해 상기 실린더(410) 내연 전후로 유동가능토록 결합되는 피스톤플러그(440)와; 상기 피 스톤플러그(440)의 일측으로 위치되고, 압축공기에 의해 일측으로 유동된 피스톤플러그(440)를 최초위치로 복귀하도록 마련된 복귀스프링(450)과; 상기 피스톤플러그(440)측으로 탄성력이 인가되도록 상기 복귀스프링(450)의 일단이 안치되는 안치홈(462)이 형성되고, 압축공기에 의한 피스톤플러그(440)의 압축이 원할하게 작용토록 실린더(410) 기밀이 유지토록 마련된 실린더 캡(460);이 형성된 것을 특징으로 한다.Here, the holding release means 400 is formed on the inner side of the holding guide groove 346b of the holding head portion 346a, and the hollow opening is opened to the end surface of the guide portion 342a side of the holding head portion 346a. A cylinder 410; A ball elevating hole 412 communicated with the holding guide groove 346b from an internal combustion of the cylinder 410; An air inlet pipe 420 formed to extend from the outside of the anchor hole A to allow compressed air to flow through; An air inlet pipe coupling part 422 formed in communication with the cylinder 410 on an end surface of the holding head 346a opposite to the guide part, and having one end of the air inlet pipe 420 coupled thereto; A holding ball 430 coupled to the ball lifting hole 412 so as to be movable; A piston plug 440 coupled to the cylinder 410 so as to flow back and forth by the compressed air introduced from the air inlet pipe 420; A return spring 450 positioned at one side of the piston plug 440 and provided to return the piston plug 440 flowed to one side by compressed air to an initial position; A settling groove 462 in which one end of the return spring 450 is placed is formed so that an elastic force is applied to the piston plug 440, and the cylinder 410 allows the piston plug 440 to be smoothly compressed by compressed air. A cylinder cap 460 provided to maintain airtightness; is formed.

여기서, 상기 피스톤플러그(440)는 원통형의 외연 일면에 복수의 유동홈(442b)이 형성되고, 상기 공기유입관 결합부(422)측으로 위치되어 유입되는 압축공기의 압축압력이 직접인가되는 압축플러그(442a)와; 상기 유동홈(442b)에 끼움결합되어 압축공기에 의해 피스톤플러그(440)가 실린더 내에서 유동시 마찰력이 최소화 되도록 구비된 무빙볼(444)과; 상기 압축플러그(442a) 일측으로 연장형성되고, 압축플러그(442a)의 직경 보다 작게 형성되어 단을 이루며, 상기 피스톤플러그(440)가 압축공기에 의해 실린던캡(460)측으로 유동시 상기 홀딩볼(430)이 볼승강공(412)으로부터 하강되도록 마련된 홀딩볼안착부(446)와; 상기 홀딩볼안착부(446) 일측으로 연장형성되고, 상기 복귀스프링(450)의 타단이 안치되는 안치공(448b)이 마련된 복귀플러그(448a);로 형성된 것을 특징으로 한다.Here, the piston plug 440 is a compression plug in which a plurality of flow grooves 442b are formed on the outer surface of the cylindrical shape, and the compression pressure of the compressed air introduced and positioned to the air inlet pipe coupling part 422 is directly applied. 442a; A moving ball 444 fitted to the flow groove 442 b and provided with a compressed air to minimize the frictional force when the piston plug 440 flows in the cylinder; The compression plug 442a extends to one side and is formed to be smaller than the diameter of the compression plug 442a to form a stage. When the piston plug 440 flows to the cylinder cap 460 by compressed air, the holding ball ( Holding ball seating portion 446 is provided so that the 430 is lowered from the ball lifting hole 412; And a return plug 448a extending to one side of the holding ball seating portion 446 and provided with a settling hole 448b on which the other end of the return spring 450 is placed.

본 발명은 각종 토목 공사의 굴착시에 연약암반이 붕괴되지 않도록 연약암반 의 사면을 안정화시키는 락볼트 선단정착구를 압축공기에 의한 홀딩해제수단의 해제에 따라 압축탄성부재가 탄발력을 인가하여 확장되는 다수의 쐐기식 확장부재가 앵커공 내의 지중에 빠르고 견고히 고정됨으로써, 그라우팅재를 앵커공에 충진하기전에 인장이 가능하고, 이로 인해 락볼트이 앵커공의 축선상 중심부에 위치되어 수평을 유지한 상태로 시공된 후, 그라우팅재를 주입하여 경화시켜, 토압에 의한 변형이 현저히 적으며, 더욱 견고한 인장응력, 전단응력 및 휨모멘트에 저항할 수 있는 장점이 있다. According to the present invention, the compression-elastic member is expanded by applying elasticity according to the release of the holding release means by the compressed air to the rock bolt tip anchorage stabilizing the slope of the soft rock so that the soft rock does not collapse during the excavation of various civil works Many wedge-type expansion members are fastened and firmly fixed to the ground in the anchor hole, which allows tensioning before filling the grouting material into the anchor hole, thereby allowing the lock bolt to be positioned at the central axis of the anchor hole and leveled. After construction, the grouting material is injected and cured, the deformation due to earth pressure is significantly less, and there is an advantage in that it can resist more firm tensile stress, shear stress and bending moment.

또한, 본 발명은 락볼트선단부에 결합되는 락볼트 선단정착구에 의해 시공기간이 단축되고, 이로 인한 시공비의 절감과 더욱 안정된 사면의 보강으로 뛰어난 안전성이 확보됨과 함께 락볼트이 앵커공의 축선상 중심부에서 그라우팅재와 경화되어 철근의 지중노출에 따른 부식이 방지되고, 유지보수비용이 절감되는 장점이 있다.In addition, the present invention is shortened the construction period by the lock bolt end fasteners coupled to the rock bolt end portion, thereby reducing the construction cost and secured excellent stability by the reinforcement of the more stable slope and lock bolt at the center of the axis of the anchor hole It is hardened by the grouting material and prevents corrosion due to underground exposure of the rebar, and has an advantage of reducing maintenance costs.

상기와 같은 본 발명에 따른 락볼트의 다목적 선단정착구의 실시예를 이하 첨부한 도면을 참조하여 상세히 설명한다.With reference to the accompanying drawings, an embodiment of the multi-purpose tip anchoring lock bolt according to the present invention as described above will be described in detail.

도 2는 본 발명에 따른 락볼트의 다목적 선단정착구의 전체설치상태를 나타낸 설치단면도이고, 도 3은 본 발명에 따른 락볼트의 다목적 선단정착구의 전체사 시도이며, 도 4는 본 발명에 따른 락볼트의 다목적 선단정착구의 요부 분해사시도이고, 도 5는 본 발명에 따른 락볼트의 다목적 선단정착구의 홀딩해제수단의 요부 분해사시도이며, 도 6은 본 발명에 따른 락볼트의 다목적 선단정착구의 홀딩해제수단의 피스톤 플러그의 절개사시도이고, 도 7 내지 도 9는 본 발명에 따른 락볼트의 다목적 선단정착구의 작동상태를 나타낸 단면도이다.Figure 2 is an installation cross-sectional view showing the overall installation state of the multi-purpose tip anchoring of the lock bolt according to the invention, Figure 3 is a total attempt of the multi-purpose tip anchoring of the rock bolt according to the invention, Figure 4 is a lock according to the present invention Figure 5 is an exploded perspective view of the main part of the multi-purpose tip anchorage of the bolt, Figure 5 is an exploded perspective view of the main portion of the release release means of the multi-purpose tip anchorage of the lock bolt according to the present invention, Figure 6 is a release of the multi-purpose tip anchorage of the rock bolt according to the present invention 7 and 9 are cross-sectional views showing the operating state of the multipurpose tip anchorage of the rock bolt according to the present invention.

도 2에 도시된 바와 같이, 본 발명의 락볼트 선단정착구(RF)는 연약암반 등의 사면에 천공기에 의해 천공된 앵커공(A)에 삽입된다. 여기서, 앵커공(A)에 삽입시, 락볼트(R)의 선단에 본 발명의 락볼트 선단정착구가 결합되어 앵커공(A)에 삽입되는 통상의 락볼트 삽입방법과 동일하여 본 발명의 요지를 명료하게 하기 위해 자세한 설명은 생략한다.As shown in Figure 2, the rock bolt tip anchoring opening (RF) of the present invention is inserted into the anchor hole (A) perforated by a perforator on the slope of the soft rock. Here, when inserted into the anchor hole (A), the lock bolt tip anchorage of the present invention is coupled to the tip of the lock bolt (R) is the same as the conventional rock bolt insertion method inserted into the anchor hole (A), the gist of the present invention Detailed description is omitted for clarity.

여기서, 본 발명의 락볼트의 다목적 선단정착구(RF)는 도 3 또는 도 4에 도시된 바와 같이, 락볼트정착헤드(100), 락볼트 고정부재(130), 다수의 쐐기식 확장부재(200), 탄성정착수단(300)을 포함한다. 여기서, 상기 락볼트정착헤드(100)는 앵커공(A) 내측 바닥측으로 삽입되어 위치된다. 이러한 상기 락볼트정착헤드(100)의 내측으로는 앞서 상술한 통상의 락볼트 선단정착구와 같이 락볼트(R)의 선단에 결합되어 앵커공(A)에 삽입되는 것으로, 콘형부(110), 락볼트헤드부(120)로 구성된다.Here, the multi-purpose front end fitting (RF) of the rock bolt of the present invention, as shown in Figure 3 or 4, lock bolt fixing head 100, lock bolt fixing member 130, a plurality of wedge-type expansion member 200 ), And the elastic fixing means 300. Here, the lock bolt fixing head 100 is inserted into the anchor hole (A) inner bottom side is positioned. Inside the lock bolt fixing head 100 is coupled to the tip of the lock bolt (R) and inserted into the anchor hole (A), the cone-shaped portion 110, The lock bolt head 120 is configured.

상기 콘형부(110)는 앵커공(A) 외측의 타측으로 진행되는 축선방향으로 직경이 축소되도록 테이퍼면(112)이 마련된다. 그리고, 상기 콘형부(110)의 최소직경을 갖는 타측 일단면 중앙에서 일측으로 락볼트결합공(114)이 관통형성된다. 여기서, 상기 락볼트결합공(114)은 앞서 상술한 바와 같이, 락볼트(R) 선단에 후술되는 락볼트 고정부재(130)가 결합되어 인장시 걸림결합되어 필요 인장력을 충분히 받을 수 있도록 락볼트결합공(114)의 일단으로 걸림단턱(116)이 형성된다. 여기서, 락볼트결합공(114)의 걸림단턱(116) 일측 내주연에는 후술되는 락볼트헤드부(120)가 나사결합되도록 암나사(118)가 형성된다.The cone-shaped portion 110 is provided with a tapered surface 112 to reduce the diameter in the axial direction that proceeds to the other side of the anchor hole (A) outside. In addition, the lock bolt coupling hole 114 is penetrated from one end surface center of the other end having the minimum diameter of the cone-shaped part 110 to one side. Here, the lock bolt coupling hole 114, as described above, the lock bolt fixing member 130 to be described later to the end of the lock bolt (R) is coupled to the lock bolt to be sufficiently engaged to receive the required tensile force when the tension is coupled The locking step 116 is formed at one end of the coupling hole 114. Here, a female screw 118 is formed at the inner circumferential edge of the locking step 116 of the lock bolt coupling hole 114 so that the lock bolt head 120, which will be described later, is screwed.

상기 락볼트헤드부(120)는 락볼트(R)이 결합된 선단부를 앵커공(A)에 삽입시, 이물질의 침투를 방지하고, 앵커공(A) 삽입시, 하중이 지하를 향하도록 함으로써, 용이한 삽입이 가능토록 구비된다. 여기서, 락볼트헤드부(120)에는 전술한 콘형부(110)의 락볼트 결합공(114) 내연으로 형성된 암나사(118)와 나사결합되는 수나사(122)가 형성된다. 그리고, 그 내측으로는 후술되는 락볼트 고정부재(130)가 삽입결합되는 수용부가 형성된다.The lock bolt head portion 120 prevents the penetration of foreign matters when inserting the front end portion of the lock bolt (R) coupled to the anchor hole (A), and when the anchor hole (A) is inserted, the load is directed to the basement It is provided for easy insertion. Here, the lock bolt head portion 120 is formed with a male screw 122 that is screwed with the female screw 118 formed by the inner bolt of the lock bolt coupling hole 114 of the cone-shaped portion 110 described above. And, the inner side is formed with a receiving portion is inserted into the lock bolt fixing member 130 to be described later.

상기 락볼트 고정부재(130)는 락볼트(R) 선단에 결합되고, 락볼트헤드부(120)의 수용부에 삽입결합된 후, 락볼트 인장시 콘형부(110)의 걸림단턱(116)에 걸림결합되어 락볼트 정착헤드(100)와 견고히 고정된다. 여기서, 락볼트 고정부재(130)는 락볼트(R) 선단에 볼트결합토록 나사산이 형성된 결합공(132)이 중앙으 로 형성된다.The lock bolt fixing member 130 is coupled to the front end of the lock bolt (R), and inserted into the receiving portion of the lock bolt head portion 120, the locking step 116 of the cone-shaped portion 110 during tensioning the lock bolt It is locked to the lock bolt fixing head 100 is firmly coupled to. Here, the lock bolt fixing member 130 is formed in the center of the coupling hole 132, the screw thread is formed so that the bolt coupling to the front end of the lock bolt (R).

상기 다수의 쐐기식 확장부재(200)는 앵커공(A) 축선상의 외측 지반으로 확대고정되어 인장재(30)의 인장이 가능토록 마련된다. 이러한, 상기 다수의 쐐기식 확장부재(200)는 연결편(210), 정착편(220), O-링(230), 정착돌기(240)를 포함한다. 이러한, 상기 다수의 쐐기식 확장부재(200)는 전술한 락볼트정착헤드(100)의 콘형부(110)의 테이퍼면(112) 외주연 둘레로 대응되어 위치토록 3분할 형성되는 것이 바람직하다.The plurality of wedge-type expansion members 200 is fixed to the outer ground on the axis of the anchor hole (A) is provided to enable the tension of the tension member (30). Such, the plurality of wedge-type expansion member 200 includes a connecting piece 210, a fixing piece 220, O-ring 230, a fixing protrusion 240. Such, the plurality of wedge-type expansion member 200 is preferably formed in three divisions to correspond to the periphery of the outer peripheral edge of the tapered surface 112 of the cone-shaped portion 110 of the rock bolt fixing head 100 described above.

상기 연결편(210)은 후술되는 탄성정착수단(300)과 연결되어 결합되도록 앵커공(A) 축선상의 바깥측으로 쐐기식 확장부재(200)의 일측에 형성된다. 이러한 연결편(310)은 후술되는 연결회동바(310)의 양측으로 형성된 결합공(312)과 핀(부호생략)에 의해 핀결합되도록 핀공(212)이 형성된 포크형상으로 마련된다.The connecting piece 210 is formed on one side of the wedge-type expansion member 200 to the outside on the anchor hole (A) axis to be coupled to the elastic fixing means 300 to be described later. The connecting piece 310 is provided in a fork shape in which the pin hole 212 is formed to be pinned by the coupling hole 312 and the pin (not shown) formed on both sides of the connecting pivot bar 310 to be described later.

상기 정착편(220)은 쐐기식 확장부재(200) 타측으로 형성되어 앵커공(A) 내측 지중에 정착되도록 쐐기식으로 형성된다. 상기 정착편(220)은 타측 끝단으로부터 전술한 상기 연결편(210)측으로 두께가 확대형성된다. 그리고, 정착편(220) 외연 일측으로 O-링홈(222)이 형성된다. The fixing piece 220 is formed in the other side of the wedge type expansion member 200 is formed in a wedge type to be fixed in the anchor hole (A) inner ground. The fixing piece 220 is enlarged in thickness from the other end toward the connection piece 210 described above. Then, the O-ring groove 222 is formed on one side of the fixing piece 220.

상기 O-링(230)은 전술한 정착편(220)의 O-링홈(222)에 결합되되, 쐐기식 확 장부재(220)가 후술되는 탄성정착수단(300)에 의한 탄발력의 작용전에 앵커공(A) 축선상의 지반측으로 벌어지는 것이 방지되도록 마련된다. 이러한, 상기 O-링(230)은 고무재 또는 합성수지재 등으로 형성되어 후술되는 탄성정착수단(300)에 의한 탄발력의 작용에 따라 쐐기식 확재부재(200)로부터의 결속이 해제토록 마련되는 것이 바람직하다.The O-ring 230 is coupled to the O-ring groove 222 of the above-mentioned fixing piece 220, before the action of the elastic force by the elastic fixing means 300, the wedge-type expansion member 220 will be described later Anchor hole (A) is provided so as to prevent spreading to the ground side on the axis line. Such, the O-ring 230 is formed of a rubber material or a synthetic resin material is provided to release the binding from the wedge-type expansion member 200 in accordance with the action of the elastic force by the elastic fixing means 300 to be described later It is preferable.

상기 정착돌기(240)는 앵커공(A) 내측 지중에 쐐기식 확장부재(200)가 정착시 인장재(30)의 인장에 따른 더욱 견고한 정착력이 달성되도록 전술한 정착편(220) 외연으로 다수형성된다. The fixing protrusion 240 has a plurality of the outer edge of the fixing piece 220 to achieve a more firm fixing force according to the tension of the tension member 30 when the wedge-type expansion member 200 is anchored in the inner surface of the anchor hole (A) Is formed.

상기 탄성정착수단(300)은 전술한 다수의 쐐기식 확장부재(200)로 탄발력을 인가하여 다수의 쐐기식 확장부재(200)가 콘형부(110)의 테이퍼면(112)을 따라 이동되어 락볼트정착헤드(100) 외주연 외측으로 확대되어 앵커공(A) 지반에 고정되도록 마련된다. 이러한, 상기 탄성정착수단(300)은 연결회동바(310), 압축부재(320), 압축탄성부재(330), 홀딩부재(340), 홀딩해제수단(400), 고정수단(500) 등으로 구성된다. The elastic fixing means 300 is applied to the elastic force to the above-described plurality of wedge-type expansion member 200 a plurality of wedge-type expansion member 200 is moved along the tapered surface 112 of the cone-shaped portion 110 The lock bolt fixing head 100 is expanded to the outer periphery and is provided to be fixed to the anchor hole (A) ground. The elastic fixing means 300 is connected to the rotary bar 310, the compression member 320, the compression elastic member 330, the holding member 340, the holding release means 400, the fixing means 500 and the like. It is composed.

상기 연결회동바(310)는 전술한 다수의 쐐기식 확장부재(200)와 탄성정착수단(300)이 일체로 연결되어 탄성정착수단(300)의 탄발력이 직접작용토록 마련된다. 이러한, 연결회동바(310)는 길이방향으로 길게 바(bar) 형태로 형성되되, 양측으로 핀(부호생략)에 의해 전술한 쐐기식 확장부재(200)의 연결편(210)의 핀공(212)에 핀결합되고, 후술되는 압축부재(320)에 핀에 의해 결합되는 결합공(312)이 각각 구비된다. The connecting pivot bar 310 is provided with a plurality of wedge-type expansion members 200 and the elastic fixing means 300 are integrally connected so that the elastic force of the elastic fixing means 300 acts directly. This, the connecting pivot bar 310 is formed in the shape of a long bar (bar) in the longitudinal direction, the pin hole (212) of the connecting piece 210 of the aforementioned wedge-type expansion member 200 by the pin (not shown) on both sides Is coupled to the pin, the coupling hole 312 is coupled to each other by a pin to the compression member 320 to be described later is provided.

상기 압축부재(320)는 후술되는 압축탄성부재(330)를 압축하여 압축에 따른 압축탄성부재(330)의 탄성력이 쐐기식 확장부재(200)측으로 작용토록 전술한 연결회동바(310)에 의해 일체로 결합형성된다. 여기서, 상기 압축부재(320)는 끼움부(322a), 안치헤드부(324a), 슬라이드공(326) 등으로 구성된다. The compression member 320 is compressed by the compression elastic member 330 to be described later by the above-described connection pivot bar 310 so that the elastic force of the compression elastic member 330 according to the compression acts toward the wedge-type expansion member 200 side. It is integrally formed. Here, the compression member 320 is composed of a fitting portion 322a, a settle head portion 324a, a slide hole 326 and the like.

상기 끼움부(322a)는 후술되는 압축탄성부재(330)가 끼움결합되도록 축선상의 길이방향으로 길게 형성된 원통형상으로 형성된다. 그리고, 끼움부(322a)의 타측 일면의 외주연을 따라 후술되는 홀딩해제수단(400)에 의해 압축부재(320)가 걸림결합되도록 걸림홈(322b)이 형성된다. The fitting portion 322a is formed in a cylindrical shape formed long in the longitudinal direction of the axis so that the compression elastic member 330 to be described later is fitted. Then, the locking groove 322b is formed to engage the compression member 320 by the holding release means 400 which will be described later along the outer circumference of the other side of the fitting portion 322a.

상기 안치헤드부(324a)는 후술되는 압축탄성부재(330)의 탄발력을 인가받도록 끼움부(322a)의 직경보다 크게 형성되어 단을 이루도록 구비된다. 그리고, 안치헤드부(324a)의 타측 단부 외주면 둘레로 연결회동바(310)의 타측 결합공(312)에 핀 결합되는 다수의 결합편(324b)이 형성된다. The settling head part 324a is formed to be larger than the diameter of the fitting part 322a so as to receive the elastic force of the compression elastic member 330 to be described later. Then, a plurality of coupling pieces 324b are pinned to the other coupling hole 312 of the connecting pivot bar 310 around the outer peripheral surface of the other end of the settle head portion 324a.

상기 슬라이드공(326)은 후술되는 홀딩부재가 슬라이딩결합되는 것으로, 전 술한 끼움부(322a) 일단에서 안치헤드부(324a) 타단으로 연통형성된다.The slide hole 326 is slidingly coupled to the holding member to be described later, is formed in communication with the other end of the settle head portion 324a from one end of the fitting portion 322a described above.

한편, 상기 압축탄성부재(330)는 압축부재(320)의 끼움부(322a)에 끼움결합되고, 압축부재(320)와 결합된 다수의 쐐기식 확장부재(200)측으로 탄발력이 인가토록 구성된다. 여기서, 압축탄성부재(330)는 다수의 쐐기식 확장부재(200)가 락볼트정착헤드(100)의 콘형부(110)의 테이퍼면(112)을 따라 이동확장되어 앵커공(A) 내측의 지중에 견고히 정착되도록 압축에 의한 탄발력이 작용되는 탄성코일스프링으로 구성되는 것이 바람직하다.On the other hand, the compression elastic member 330 is fitted to the fitting portion (322a) of the compression member 320, the elastic force is configured to apply a plurality of wedge-type expansion member 200 side coupled to the compression member 320 do. Here, the compression elastic member 330 is a plurality of wedge-type expansion member 200 is extended to move along the tapered surface 112 of the cone-shaped portion 110 of the lock bolt fixing head 100 to the inside of the anchor hole (A) It is preferable that the elastic coil spring is applied to the elastic force spring by compression to be firmly fixed in the ground.

상기 홀딩부재(340)는 압축탄성부재(330)이 끼움결합되어 압축부재(320)에 의해 압축시, 압축탄성부재(330)의 탄발력이 곧바로 인가되지 않고 사용자의 원하는 시점에서 압축탄성부재(330)의 압축 탄발력이 작용하여 쐐기식 확장부재(200)로 인가토록 마련된다. 이러한, 홀딩부재(340)는 가이드부(342a), 홀딩헤드부(346a), 홀딩해제수단(400)을 포함한다.The holding member 340 is a compression elastic member 330 is fitted to the compression by the compression member 320, when the elastic force of the compression elastic member 330 is not immediately applied to the compression elastic member ( Compression elasticity of the 330 is applied to be applied to the wedge-type expansion member 200. The holding member 340 includes a guide portion 342a, a holding head portion 346a, and a holding release means 400.

상기 가이드부(342a)는 상기 압축부재(320)의 슬라이드공(326)에 슬라이딩결합되어 축선상으로 압축부재(320)가 가이드되도록 일측으로 길이방향으로 길게 연장형성되어 원통형으로 마련된다. 여기서, 가이드부(342a)는 압축탄성부재(330)의 탄발력의 작용에 따라 압축부재(320)가 락볼트정착헤드(100)의 콘형부(110) 둘레로 위치된 쐐기식 확장부재(200)측으로 가이드 되어 빠르게 이동된다.The guide portion 342a is slidably coupled to the slide hole 326 of the compression member 320 and is formed to extend in a longitudinal direction to one side so that the compression member 320 is guided in an axial line. Here, the guide portion 342a is a wedge type expansion member 200 in which the compression member 320 is positioned around the cone-shaped portion 110 of the lock bolt fixing head 100 according to the action of the elastic force of the compression elastic member 330. Guided to) side moves quickly.

상기 락볼트 통공(344)은 앵커공(A) 외측으로부터 내측으로 삽입되는 락볼트(R)이 락볼트정착헤드(100)에 결합되기 위한 것이다. 따라서, 락볼트 통공(344)은 가이드부(432a) 일단으로부터 홀딩헤드부(346a) 타단으로 관통형성된다. 즉, 락볼트(R)은 홀딩헤드부(346a) 중앙으로 형성된 락볼트 통공(344)을 통해 가이드부(432a) 끝단 중앙으로 관통되어 락볼트정착헤드(100)에 결합됨으로써, 쐐기식 확장부재(200)에 의한 락볼트정착헤드(100)의 정착에 따라 앵커공(A) 외측에서 인장재의 인장이 가능하다.The rock bolt through hole 344 is to be coupled to the rock bolt fixing head 100 is a lock bolt (R) is inserted into the anchor hole (A) from the outside. Therefore, the lock bolt through hole 344 is formed through the guide portion 432a from one end to the other end of the holding head portion 346a. That is, the lock bolt (R) is penetrated to the center of the end of the guide portion 432a through the lock bolt through hole 344 formed in the center of the holding head portion 346a is coupled to the lock bolt fixing head 100, the wedge-type expansion member According to the fixing of the lock bolt fixing head 100 by the (200) it is possible to tension the tension member outside the anchor hole (A).

상기 홀딩헤드부(346a)는 전술한 가이드부(342a) 보다 지경이 확대형성되어 단을 이룸으로써, 압축부재(320)에 끼움결합된 압축탄성부재(330)의 압축에 따른 탄발력의 작용지지점의 역할을 수행하게 된다. 이러한, 압축탄성부재의 탄발력의 작용지지점의 역할을 수행하기 위해서는 후술되는 스톱볼트(350)에 의해 락볼트 통공(344)을 관통하는 락볼트(R) 외주면에 견고히 결합됨으로써, 달성된다. 여기서, 후술되는 스톱볼트(350)의 결합은 홀딩헤드부(346a) 외주연 일면으로부터 락볼트통공(344)으로 관통된 스톱볼트공(346c)에 결합되어 고정된다. The holding head portion 346a is formed by extending the diameter than the guide portion 342a described above to form a stage, and the supporting point of the elastic force according to the compression of the compression elastic member 330 fitted to the compression member 320 It will play the role of. In order to perform the role of the supporting point of the elastic force of the compression elastic member, it is achieved by being firmly coupled to the outer circumferential surface of the lock bolt (R) through the lock bolt through hole 344 by the stop bolt 350 to be described later. Here, the coupling of the stop bolt 350, which will be described later, is coupled to and fixed to the stop bolt hole 346c penetrated into the lock bolt through hole 344 from one outer circumferential surface of the holding head portion 346a.

즉, 후술되는 스톱볼트(350)에 의해 홀딩헤드부(346a)가 락볼트(R)과 견고히 고정됨에 따라 압축탄성부재(330)가 앵커공(A) 외측으로의 탄발력의 작용없이 원활하게 압축이 가능하고, 쐐기식 확장부재(200)측으로의 탄발력 작용시, 작용지지점 의 역할을 수행하는 것이다. That is, as the holding head portion 346a is firmly fixed to the lock bolt R by the stop bolt 350 to be described later, the compression elastic member 330 smoothly without the action of the elastic force to the outside of the anchor hole A. Compression is possible, and when acting on the elastic force to the wedge-type expansion member 200, to act as a supporting point.

이러한, 상기 홀딩헤드부(346a)는 전술한 가이드부(342a) 타측으로 연장형성된다. 그리고, 가이드부(342a)와 접하는 일면을 따라 압축부재(320)의 타단 일면에 형성된 걸림홈(322b)이 홀딩위치상으로 안내결합토록 홀딩안내홈(346b)이 형성된다. 또한, 압축부재(320)가 가이드부(342a)상에서 슬라이딩 위치이동되어 압축탄성부재(330)를 압축고정토록 홀딩안내홈(346b) 내연 일측으로 홀딩해제수단(400)이 마련된다. The holding head portion 346a extends to the other side of the guide portion 342a described above. Then, a holding guide groove 346b is formed so that the engaging groove 322b formed at the other end surface of the compression member 320 is guided to the holding position along one surface of the guide portion 342a. In addition, the compression member 320 is moved in the sliding position on the guide portion 342a is provided with a release releasing means 400 holding the compression elastic member 330 to the inner side of the holding guide groove 346b to fix the compression.

한편, 상기 스톱볼트(350)는 다시 말하면 홀딩부재(340)를 락볼트(R)에 고정함으로써, 압축탄성부재(330)의 탄발력의 작용지지점의 역할수행뿐만 아니라, 락볼트(R)의 인장시 쐐기식 확장부재(200)의 위치변화없이 인장이 가능토록 구성된다. 이러한, 스톱볼트(350)는 홀딩부재(340)의 홀딩헤드부(346a) 외주연 일측에서 락볼트 통공(344)측으로 관통형성된 스톱볼트공(346c)에 볼트결합되어 락볼트(R)의 외주면에 밀착고정되어 홀딩헤드부(346a)와 락볼트(R)이 견고히 고정토록 구비됨으로써 달성된다.On the other hand, the stop bolt 350, in other words by fixing the holding member 340 to the lock bolt (R), the role of the supporting point of the elastic force of the compression elastic member 330, as well as the locking bolt (R) The tension is configured to enable tension without changing the position of the wedge-type expansion member (200). The stop bolt 350 is bolted to the stop bolt hole 346c formed through the outer side of the holding head portion 346a of the holding member 340 through the lock bolt through hole 344 side, and the outer circumferential surface of the lock bolt R. It is achieved by being firmly fixed to the holding head portion 346a and the lock bolt (R) to be firmly fixed.

한편, 홀딩해제수단(400)은 전술한 압축부재(320)가 가이드부(342a) 상에서 홀딩헤드부(346a) 측으로 슬라이딩되어 압축탄성부재(330)를 압축후, 압축력이 해제되지 않도록 압축부재(320)의 끼움부(322a) 타단 외연둘레에 형성된 걸림 홈(322b)에 걸림결합되도록 구비된다. 즉, 압축부재(320)가 압축탄성부재(330)을 압축한 상태로 가이드부(342a)상에서 유지하여 사용자가 요구하는 앵커공(A)의 삽입위치에서 탄발력이 작용토록 압축부재(320)의 걸림홈(322b)을 통해 홀딩해제수단(400)으로 수행하게 된다.On the other hand, the holding release means 400 is the compression member 320 is slid to the holding head portion 346a side on the guide portion 342a to compress the compressive elastic member 330, after the compression member ( The fitting portion 322a of the 320 is provided to engage with the engaging groove 322b formed on the outer edge of the other end. That is, the compression member 320 is maintained on the guide portion 342a in a state in which the compression elastic member 330 is compressed so that the elastic member acts at the insertion position of the anchor hole A required by the user. Through the holding groove 322b of the holding release means 400 is performed.

상기와 같이 언급한 상기 홀딩해제수단(400)은 도 5에 도시된 바와 같이, 압축부재(320)에 의해 압축탄성부재(330)의 압축에 따른 탄성력을 제어하도록 구비된다. 이와 같은 상기 홀딩해제수단(400)은 전술한 홀딩헤드부(346a)의 홀딩안내홈(346b) 내연 일측으로 형성된다. 그리고, 홀딩해제수단(400)은 실린더(410), 공기유입관(420), 홀링볼(430), 피스톤플러그(440), 복귀스프링(450), 실린더캡(460) 등으로 구성된다.As described above, the holding release means 400 is provided to control the elastic force according to the compression of the compression elastic member 330 by the compression member 320, as shown in FIG. The holding release means 400 is formed at one side of the inner edge of the holding guide groove 346b of the holding head portion 346a described above. The holding release means 400 includes a cylinder 410, an air inlet pipe 420, a holding ball 430, a piston plug 440, a return spring 450, a cylinder cap 460, and the like.

상기 실린더(410)는 홀딩헤드부(346a)의 가이드부(342a)측 일면 일측으로 개방된 중공으로 형성된다. 그리고, 압축부재(320)의 걸림홈(322b)에 걸림되는 후술되는 홀링볼(430)이 결합되어 상하로 유동토록 마련된 볼승강공(412)이 실린더(410) 내연으로부터 홀딩안내홈(346b)측으로 연통 형성된다. The cylinder 410 is formed in a hollow that is open to one side of one side of the guide part 342a of the holding head part 346a. Then, the ball lifting hole 412 which is provided to flow up and down is coupled to the holding ball 430 which will be described later to be locked to the locking groove 322b of the compression member 320 is the holding guide groove 346b from the internal combustion of the cylinder 410 It is formed in communication with the side.

상기 공기유입관(420)은 앵커공(A) 외부로부터 압축공기가 유통되도록 홀딩헤드부(346a)의 앵커공(A) 외부측 일면측으로 연장형성된다. 그리고, 앵커공(A) 내측으로 유입된 공기유입관(420)의 일단부가 결합되는 공기유입관 결합부(422)가 홀 딩헤드부(346a)의 가이드부 반대편측 단부면 일측으로 전술한 실린더(410)와 연통형성된다. The air inlet pipe 420 is extended to the outer surface of the anchor hole (A) of the holding head portion 346a so that compressed air flows from the outside of the anchor hole (A). In addition, the air inlet pipe coupling part 422 to which one end of the air inlet pipe 420 introduced into the anchor hole A is coupled to the side of the end surface on the opposite side of the guide part of the holding head part 346a is described above. 410 is in communication with.

상기 홀링볼(430)은 구형으로 형성되고, 볼승강공(412)에 상하이동가능토록 결합된다. 여기서, 홀링볼(430)은 볼승강공(412)에 결합시, 홀링볼의 중심점을 기준으로 절반 이하만이 홀딩안내홈(346b) 측으로 돌출되는 것이 바람직하다.The hole ball 430 is formed in a spherical shape, it is coupled to the ball lifting hole 412 to be movable. Here, when the holding ball 430 is coupled to the ball lifting hole 412, it is preferable that only less than half of the holding ball 430 protrudes toward the holding guide groove 346b.

상기 피스톤플러그(440)는 도 6에 도시된 바와 같이, 전술한 공기유입관(420)으로부터 유입되는 압축공기에 의해 실린더(410) 내연 전후로 유동가능토록 형성된다. 이와 같은 피스톤플러그(440)는 압축플러그(442a), 무빙볼(444), 홀딩볼안착부(446), 복귀플러그(448a) 로 나뉘어 구성된다.As shown in FIG. 6, the piston plug 440 is formed to be able to flow before and after the internal combustion of the cylinder 410 by the compressed air introduced from the air inlet pipe 420 described above. The piston plug 440 is divided into a compression plug 442a, a moving ball 444, a holding ball seating portion 446, a return plug 448a.

여기서, 상기 압축플러그(442a)는 공기유입관(420)으로부터 유입되는 압축공기가 실린더(410)측으로 이송되어 압축압력을 직접 전달받도록 구비된다. 여기서, 상기 압축플러그(422a)는 원통형으로 실린더(410)의 내주연에 대응되되, 압축플러그(422a)의 외연 일면에 복수의 유동홈(442b)이 형성된다. 그리고, 상기 공기유입관 결합부(422)측으로 위치된다.Here, the compression plug 442a is provided so that the compressed air flowing from the air inlet pipe 420 is transferred to the cylinder 410 side to receive the compression pressure directly. Here, the compression plug 422a has a cylindrical shape and corresponds to the inner circumference of the cylinder 410, and a plurality of flow grooves 442b are formed on one outer edge of the compression plug 422a. And, it is located toward the air inlet pipe coupling portion 422.

상기 무빙볼(444)은 전술한 압축플러그(442a)의 외주면에 형성된 유동홈(442b)에 끼움결합되어 압축공기에 의해 피스톤플러그(440)가 실린더 내에서 유 동시 마찰력이 최소화 되도록 구비된다.The moving ball 444 is fitted to the flow groove 442b formed on the outer circumferential surface of the compression plug 442a described above, and the piston plug 440 is provided by the compressed air to minimize the simultaneous frictional force in the cylinder.

상기 홀딩볼안착부(446)는 압축플러그(442a) 일측으로 연장형성되고, 압축플러그(442a)의 직경 보다 작게 형성되어 단을 이룬다. 여기서, 피스톤플러그(440)의 전술한 압축플러그(442a)가 압축공기에 의해 후술되는 실린던캡(460)측으로 유동시 압축부재(320)의 걸림홈(322b)에 걸림결합되어 위치된 홀딩볼(430)이 볼승강공(412)으로부터 하강되어 압축부재(320)가 홀딩해제수단(400)으로부터 홀딩이 해제토록 마련된다.The holding ball seating portion 446 extends to one side of the compression plug 442a, and is formed to be smaller than the diameter of the compression plug 442a. Here, the above-mentioned compression plug 442a of the piston plug 440 is held by the engaging ball 322b of the compression member 320 when it is moved to the cylinder cap 460 which will be described later by the compressed air. 430 is lowered from the ball lifting hole 412 is provided so that the compression member 320 is released from the holding release means 400.

상기 복귀플러그(448a)는 홀딩볼안착부(446) 일측으로 연장형성되고, 후술되는 복귀스프링(450)의 타단이 안치되는 안치공(448b)이 마련된다. 여기서, 복귀플러그(448a)는 후술되는 복귀스프링(450)의 탄성력에 의해 공기유입관 결합부(422)측으로 피스톤플러그(440)가 복귀토록 구비된다.The return plug 448a extends to one side of the holding ball seating portion 446 and is provided with a settling hole 448b having the other end of the return spring 450 to be described later. Here, the return plug 448a is provided to return the piston plug 440 toward the air inlet pipe coupling portion 422 by the elastic force of the return spring 450 to be described later.

한편, 상기 복귀스프링(450)은 피스톤플러그(440)의 복귀플러그(448a) 일측으로 위치된다. 그리고, 공기유입관(420)을 통해 유입된 압축공기에 의해 일측으로 유동된 피스톤플러그(440)를 최초위치로 복귀하도록 마련된다.On the other hand, the return spring 450 is located to one side of the return plug 448a of the piston plug 440. Then, the piston plug 440 flowed to one side by the compressed air introduced through the air inlet pipe 420 is provided to return to the initial position.

상기 실린더 캡(460)은 복귀스프링(450)에 의해 피스톤플러그(440)가 공기유입관(420)측으로 탄성력이 인가되도록 복귀스프링(450)의 일단이 안치지지 및 압축 공기의 압축압력이 정상적으로 인가되도록 기밀을 유지토록 마련된다. 여기서, 실린더 캡(460)의 복귀스프링(450) 측 일면 중앙으로는 복귀스프링이 안치지지되도록 안치홈(462)이 형성된다. The cylinder cap 460 is supported by the return spring 450 so that the piston plug 440 is applied to the air inlet pipe 420 so that one end of the return spring 450 is fixed and the compressed pressure of the compressed air is normally applied. It should be kept as confidential as possible. Here, a settling groove 462 is formed at the center of one surface of the return spring 450 side of the cylinder cap 460 so that the return spring is supported.

상술한 바와 같은 구성에 따른 본 발명에 따른 락볼트의 다목적 선단정착구의 작용 및 효과를 실시예를 통해 상세히 설명하기로 한다.The operation and effects of the multi-purpose tip anchorage of the rock bolt according to the present invention according to the configuration as described above will be described in detail by way of examples.

도 7에 도시된 바와 같이, 본 발명에 따른 락볼트의 다목적 선단정착구는 먼저 락볼트(R)의 선단에 락볼트 고정부재(130)의 결합공(132)에 대응하여 결합한 후, 락볼트정착헤드(100)의 락볼트 헤드부(120)의 수용부(124)측으로 위치시킨 후, 락볼트 헤드부(120)와 콘형부(110)를 나사결합한다. As shown in FIG. 7, the multi-purpose front end fitting of the rock bolt according to the present invention is first coupled to the coupling hole 132 of the rock bolt fixing member 130 at the front end of the rock bolt R, and then lock bolt fixing After positioning to the receiving portion 124 side of the lock bolt head portion 120 of the head 100, the lock bolt head portion 120 and the cone-shaped portion 110 is screwed.

다음으로, 락볼트(R)가 결합된 락볼트정착헤드(100)의 콘형부(110)의 테이퍼면(112) 외연둘레로 다수의 쐐기식 확장부재(200)를 위치시킨다. 이후, 다수의 쐐기식 확장부재(200)의 일측으로 형성된 포크형상의 연결편(210)의 핀공(212)에 연결회동바(310)의 타단에 형성된 결합공(312)을 대응시켜 핀결합한다.Next, a plurality of wedge-type expansion members 200 are positioned around the outer edge of the tapered surface 112 of the cone-shaped portion 110 of the lock bolt fixing head 100 to which the lock bolt R is coupled. Thereafter, the pin hole 212 of the fork-shaped connecting piece 210 formed at one side of the plurality of wedge-type expansion member 200 to the pin hole 212 corresponding to the coupling hole 312 formed at the other end of the connecting pivot bar 310.

다음으로, 연결회동바(310)의 일단에 형성된 결합공(312)을 탄성정착수단(300)의 압축부재(320)의 타측 안치헤드부(324a)의 외면둘레측으로 형성된 다수의 결합편(324b)에 대응하여 핀결합한다. 이와같이, 연결회동바(310)에 의해 탄성 정착수단(300)의 압축부재(320)와 다수의 쐐기식 확장부재(200)를 일체로 결합한 후, 앵커공(A)에 삽입전에 다수의 쐐기식 확장부재(200)가 외측으로 벌어지는 것을 방지하도록 쐐기식 확장부재(200)의 외연에 형성된 O-링홈(222)에 O-링(230)을 결합한다.Next, a plurality of coupling pieces 324b formed in the coupling hole 312 formed at one end of the connecting pivot bar 310 to the outer circumferential side of the other settle head portion 324a of the compression member 320 of the elastic fixing means 300. Pins corresponding to). In this way, after connecting the compression member 320 and the plurality of wedge-type expansion member 200 of the elastic fixing means 300 by the connecting pivot bar 310 integrally, a plurality of wedge type before insertion into the anchor hole (A) The O-ring 230 is coupled to the O-ring groove 222 formed on the outer edge of the wedge-shaped expansion member 200 to prevent the expansion member 200 from spreading outward.

다음으로, 압축탄성부재(330)를 압축부재(320)의 끼움부(322a)의 외주연 둘레로 위치토록 끼움결합한다. 이후, 압축탄성부재(330)가 끼움결합된 압축부재(320)의 슬라이드공(326)을 홀딩부재(340)의 가이드부(342a) 외연에 대응하여 슬라이딩 결합한다. Next, the compression elastic member 330 is fitted to be positioned around the outer circumference of the fitting portion 322a of the compression member 320. Subsequently, the slide elastic holes 326 of the compression member 320 to which the compression elastic member 330 is fitted are slidably coupled to the outer edges of the guide part 342a of the holding member 340.

다음으로, 압축부재(320)와 압축탄성부재(330)가 결합된 홀딩부재(340)의 홀딩헤드부(346a)의 외주연 일면에서 락볼트 통공(344) 측으로 관통된 스톱볼트공(346c)에 스톱볼트(350)를 결합하여 락볼트(R) 외주면에 스톱볼트(350)가 밀착하여 홀딩부재가 락볼트상에 고정토록 함으로써, 홀딩부재(340)와 락볼트(R)를 일체로 완성한다.Next, the stop bolt hole 346c penetrated to the rock bolt through hole 344 side from the outer circumferential surface of the holding head portion 346a of the holding member 340 in which the compression member 320 and the compression elastic member 330 are coupled. The stop bolt 350 is coupled to the stop bolt 350 to the outer circumferential surface of the lock bolt R so that the holding member is fixed on the lock bolt, thereby completing the holding member 340 and the lock bolt R integrally. do.

이와 같이, 각각의 구성이 결합된 후, 압축부재(320)를 가이드부(342a) 상에서 홀딩헤드부(346a)의 홀딩안내홈(346b) 측으로 가이드 슬라이딩 이동한다. 이렇게, 압축부재(320)를 가이드부(322a) 상에서 이동하게되면 압축부재(320)의 끼움부(322a)에 끼움결합한 안치헤드부(324a)와 홀딩헤드부(346a) 사이에 위치된 압축 탄성부재(330)는 압축한다.As described above, after the respective components are coupled, the compression member 320 is guided and moved toward the holding guide groove 346b of the holding head portion 346a on the guide portion 342a. In this way, when the compression member 320 is moved on the guide portion 322a, the compression elasticity positioned between the settling head portion 324a and the holding head portion 346a fitted to the fitting portion 322a of the compression member 320. Member 330 compresses.

따라서, 압축부재(320)를 홀딩부재(340)의 가이드부(342a)상에서 계속해서 슬라이딩이동하게되면 압축탄성부재(330)는 계속해서 압축하다가 더이상 압축하지 않는 한계점에 도달한다. 이와 같은 압축탄성부재(330)가 압축한계에 도달되는 위치를 설계하여 압축부재(320)의 끼움부(322a)의 길이가 결정되는 것이 바람직하며, 끼움부(322a)의 일단을 홀딩헤드부(346a)의 홀딩안내홈(346b) 내측으로 삽입한다.Therefore, when the compression member 320 continues to slide on the guide portion 342a of the holding member 340, the compression elastic member 330 continues to compress and reaches a limit at which it is no longer compressed. It is preferable that the length of the fitting portion 322a of the compression member 320 is determined by designing a position at which the compression elastic member 330 reaches the compression limit, and one end of the fitting portion 322a is held by the holding head portion ( It is inserted into the holding guide groove 346b of 346a.

다음으로, 압축부재(320)의 끼움부(322a) 일단을 홀딩안내홈(346b)으로 삽입한 후, 홀딩헤드부(346a)에 구비된 홀딩해제수단(400)에 압축부재(320)가 걸림결합되도록 하여 압축탄성부재(330)가 압축된 상태로 홀딩한다.Next, after inserting one end of the fitting portion 322a of the compression member 320 into the holding guide groove 346b, the compression member 320 is caught by the holding release means 400 provided in the holding head portion 346a. Compression elastic member 330 is held in a compressed state by being coupled.

여기서, 홀딩안내홈(346b)의 내연측으로 연통된 볼승강공(412)을 통해 홀딩볼(430)이 홀딩안내홈(346b) 측으로 돌출된다. 즉, 실린더(410) 내부에 구비된 피스톤플러그(440)에 의해 볼승강공(412)의 홀딩안내홈(346b) 측으로 홀딩볼(430)이 돌출되어 홀딩안내홈(346b)을 따라 삽입되는 압축부재(320)의 끼움부(322a) 일단에 형성된 걸림홈(322b)상에 걸림결합한다. Here, the holding ball 430 protrudes toward the holding guide groove 346b through the ball lifting hole 412 communicated with the inner edge of the holding guide groove 346b. That is, the holding ball 430 protrudes toward the holding guide groove 346b of the ball lifting hole 412 by the piston plug 440 provided inside the cylinder 410, and is compressed along the holding guide groove 346b. Engage on the engaging groove 322b formed at one end of the fitting portion 322a of the member 320.

이와 같이, 걸림홈(322b) 상에 걸림결합된 홀딩볼(430)은 지속적으로 탄성력을 홀딩해제수단(400)의 공기유입관결합부(422)측의 실린더(410) 내측으로 인가하 는 복귀스프링(450)에 의해 실린더(410) 내측으로 하강하지 않는다.As described above, the holding ball 430 engaged on the locking groove 322b is continuously returned to apply the elastic force into the cylinder 410 on the side of the air inlet pipe 422 of the release releasing means 400. It does not descend into the cylinder 410 by the spring 450.

이와 같이 결합된 본 발명의 락볼트의 다목적 선단정착구를 이용하여 도 2에 도시된 바와 같이, 앵커공(A)에 삽입한다. 이후, 최초 쐐기식 확장부재(200)가 O-링에 의해 앵커공(A)의 내측 지중으로 벌어지는 것이 방지된 상태에서 삽입하여 정착위치에 도달하게되면 외부로부터 컴프레서(도시없음) 등에 의해 압축공기를 홀딩헤드부(346a)에 구비된 홀딩해제수단(400)의 공기유입관 결합부(422)에 일단이 결합된 공기유입관(420)을 통해 유입한다.As shown in FIG. 2, the anchor bolts of the present invention are coupled to each other by using the anchor bolts. Then, when the first wedge type expansion member 200 is inserted in a state where it is prevented from opening into the inner ground of the anchor hole A by the O-ring and reaches the fixing position, the compressed air is compressed by a compressor (not shown) from the outside. It is introduced through the air inlet pipe 420, one end of which is coupled to the air inlet pipe coupling portion 422 of the holding release means 400 provided in the holding head portion 346a.

이후, 상술한 바와 같이, 도 7 및 도 8에 도시된 바와 같이, 공기유입관(420)을 통해 공기유입관 결합부(422)측으로 유입된 압축공기는 실린더(410)측으로 이동한다. 다음으로, 이동된 압축공기는 강한 압력으로 실린더(410)의 내부에 위치된 피스톤플러그(440)의 압축플러그(442a)의 일면에 접촉한다. 이후, 압축공기는 계속해서 실린더(410) 측으로 유입되고, 복귀스프링의 탄성력보다 높은 압력이 발생되면 피스톤플러그(440)는 서서히 실린더(410) 내에서 무빙볼(444)에 의해 마찰력이 최소화된 상태로 부드럽게 이동한다.Then, as described above, as shown in Figures 7 and 8, the compressed air introduced to the air inlet pipe coupling portion 422 through the air inlet pipe 420 moves to the cylinder 410 side. Next, the moved compressed air comes into contact with one surface of the compression plug 442a of the piston plug 440 located inside the cylinder 410 with a strong pressure. Thereafter, the compressed air continues to flow into the cylinder 410 side, and when a pressure higher than the elastic force of the return spring is generated, the piston plug 440 is gradually minimized by the moving ball 444 in the cylinder 410. To move smoothly.

다음으로, 피스톤플러그(440)가 실린더(410) 내에서 이동하면, 피스톤플러그(440)의 압축플러그(442a)의 타측으로 연장형성된 홀딩볼안착부(446)도 함께 이동한다. 여기서, 최초 홀딩볼(430)은 피스톤플러그(440)의 복귀플러그(448a)의 외 주면상에 접하여 홀딩안내홈(346b)측으로 일부가 돌출되어 압축부재(320)를 홀딩한 상태이다.Next, when the piston plug 440 moves in the cylinder 410, the holding ball seat 446 extending to the other side of the compression plug 442a of the piston plug 440 also moves. Here, the first holding ball 430 is in contact with the outer circumferential surface of the return plug 448a of the piston plug 440 to protrude toward the holding guide groove 346b to hold the compression member 320.

따라서, 홀딩볼안착부(446)가 이동됨과 함께 그 후단에 연결된 복귀플러그(448a)도 실린더캡(460)측으로 위치이동한다. 이렇게 이동하는 피스톤플러그(440)에 의해 복귀플러그(448a)의 외주면상에 위치된 홀딩볼(430)은 서서히 복귀플러그(448a)에 의해 회전이동한다. Accordingly, the holding ball seating portion 446 is moved and the return plug 448a connected to the rear end thereof is also moved to the cylinder cap 460 side. The holding ball 430 located on the outer circumferential surface of the return plug 448a by the moving piston plug 440 is gradually moved by the return plug 448a.

이후, 압축공기에 의해 피스톤플러그(440)이 최종 홀딩해제점에 도달하게되면 복귀플러그(448a)의 외주면상에서 홀딩볼안착부(446)측으로 홀딩볼(430)이 하강한다. 이렇게 하강한 홀딩볼(430)은 압축부재(320)의 걸림홈(322b)으로부터 이탈하고 그로 인해 압축부재(320)가 홀딩해제수단(400)으로부터 해제된다.Thereafter, when the piston plug 440 reaches the final holding release point by the compressed air, the holding ball 430 is lowered to the holding ball seat 446 on the outer circumferential surface of the return plug 448a. The lowered holding ball 430 is separated from the locking groove 322b of the compression member 320, and thereby the compression member 320 is released from the holding release means 400.

이후, 홀딩해제수단(400)으로부터 해제된 압축부재(320)는 압축한계점으로 압축된 압축탄성부재(330)가 원상태로 복원되려는 탄발력이 압축부재(320)의 안치헤드부(324a)측으로 작용한다.Thereafter, the compression member 320 released from the holding release means 400 has a resilient force for restoring the compressed elastic member 330 compressed to the compression limit to the original head portion 324a of the compression member 320. do.

이후, 안치헤드부(324a)측으로 작용하는 탄발력은 홀딩부재(340)의 가이드부(342a)상에 슬라이딩결합된 압축부재(320)를 락볼트정착헤드(100)측으로 가이드이송하여 축선방향의 직선상으로 빠르게 이송한다.Thereafter, the elastic force acting toward the settling head portion 324a guides the compression member 320 slidably coupled to the guide portion 342a of the holding member 340 to the lock bolt fixing head 100 to the axial direction. Rapidly feed in a straight line.

이후, 압축부재(320)의 안치헤드부(324a)의 결합편(324b)에 결합한 연결회동바(310)의 타측으로 결합된 다수의 쐐기식 확장부재(200)도 축선방향의 직선상으로 압축탄성부재(330)의 탄발력에 의해 빠르게 이동하는 압축부재(320)와 함께 이동한다.Thereafter, the plurality of wedge-type expansion members 200 coupled to the other side of the connecting rotation bar 310 coupled to the coupling piece 324b of the settling head portion 324a of the compression member 320 is also compressed in a straight line in the axial direction. The elastic member 330 moves with the compression member 320 that moves quickly by the elastic force.

다음으로, 압축탄성부재(330)의 탄발력을 인가받은 쐐기식 확장부재(200)는 도 9에 도시된 바와 같이, 락볼트정착헤드(100)의 콘형부(110)의 테이퍼면(112)을 따라 앵커공(A) 내측 지중으로 확대되면서 견고히 고정한다. 여기서, 쐐기식 확장부재(200)는 압축탄성부재(330)의 탄발력에 의해 빠르게 확대됨으로써, 외측으로 벌어지는 것을 방지하기 위한 O-링은 일정각도이상 벌어지는 쐐기식 확장부재(200)에 의해 결속이 해제된다. 또한, 앵커공(A)의 지중으로 확대고정되는 쐐기식 확장부재(200)의 정착편(220) 외연에 구비된 다수의 정착돌기(240)에 의해 그라우팅 전에 인장시, 지중에 더욱 견고히 쐐기식 확장부재(200)이 고정하는 것이다.Next, as shown in FIG. 9, the wedge type expansion member 200 applied with the elastic force of the compression elastic member 330 has a tapered surface 112 of the cone-shaped portion 110 of the lock bolt fixing head 100. Along the anchor hole (A) while expanding to the inside ground firmly fixed. Here, the wedge-type expansion member 200 is rapidly expanded by the elasticity of the compressive elastic member 330, O-ring for preventing the outward from being bound by the wedge-type expansion member 200 that opens over a certain angle. Is released. In addition, when tensioning before grouting by a plurality of fixing projections 240 provided on the outer edge of the fixing piece 220 of the wedge type expansion member 200 is fixed to the ground of the anchor hole (A), more wedge-type in the ground Expansion member 200 is to be fixed.

따라서, 이와 같이, 압축탄성부재(330)의 탄발력에 의해 쐐기식 확장부재(200)가 앵커공(A)의 지중에 결합한 후, 락볼트(R)를 인장하게 되면 락볼트 선단에 결합되어 락볼트 정착헤드(100)의 수용부(124)에 결합된 락볼트 고정부재(130)가 걸림단턱(116)에 걸림되어 견고히 고정되어 즉시 인장이 가능함으로써, 시공이 어려운 곳에도 용이하게 정착이 가능한 것은 자명한 것이며, 락볼트 이외에도 다양 한 목적으로 사용이 가능한 것이다.Therefore, after the wedge-type expansion member 200 is coupled to the ground of the anchor hole A by the elastic force of the compression elastic member 330, the tensioning of the lock bolt R is coupled to the tip of the lock bolt. The lock bolt fixing member 130 coupled to the receiving portion 124 of the lock bolt fixing head 100 is locked to the locking step 116 and is firmly fixed so that tension can be immediately fixed, so that fixing is easily performed even in a difficult construction place. It is obvious that it can be used for various purposes in addition to rock bolts.

한편, 본 발명의 상세한 설명에서는 구체적인 실시예에 관해서 설명하였으나, 본 발명의 범위에서 벗어나지 않는 한도내에서 여러가지 변형이 가능함을 당해 분야에서 통상의 지식을 가진자에게 있어서, 그와 같은 변형은 청구 범위 기재의 범위내에 있는 것이다.On the other hand, in the detailed description of the present invention has been described with respect to specific embodiments, for those skilled in the art that various modifications are possible without departing from the scope of the invention, such modifications are claimed It is within the scope of the description.

도 1은 종래의 락볼트 설치상태 단면도이다.1 is a cross-sectional view of a conventional lock bolt installation state.

도 2는 본 발명에 따른 락볼트의 다목적 선단정착구의 전체설치상태를 나타낸 설치단면도이다.Figure 2 is an installation cross-sectional view showing the overall installation state of the multi-purpose tip anchoring lock bolt according to the present invention.

도 3은 본 발명에 따른 락볼트의 다목적 선단정착구의 전체사시도이다.Figure 3 is an overall perspective view of the multi-purpose tip anchorage of the rock bolt according to the invention.

도 4는 본 발명에 따른 락볼트의 다목적 선단정착구의 요부 분해사시도이다.Figure 4 is an exploded perspective view of the main portion of the multi-purpose tip anchoring lock bolt according to the present invention.

도 5는 본 발명에 따른 락볼트의 다목적 선단정착구의 홀딩해제수단의 요부 분해사시도이다.Figure 5 is an exploded perspective view of the main portion of the holding release means of the multi-purpose tip anchoring of the lock bolt according to the present invention.

도 6은 본 발명에 따른 락볼트의 다목적 선단정착구의 홀딩해제수단의 피스톤 플러그의 절개사시도이다.Figure 6 is a cutaway perspective view of the piston plug of the holding release means of the multi-purpose tip anchorage of the lock bolt according to the present invention.

도 7 내지 도 9는 본 발명에 따른 락볼트의 다목적 선단정착구의 작동상태를 나타낸 단면도이다.7 to 9 are cross-sectional views showing the operating state of the multi-purpose front end anchoring lock bolt according to the present invention.

*도면의 주요부호에 대한 설명** Description of the major symbols in the drawings *

A : 앵커공 N : 락볼트A: Anchor Ball N: Rock Bolt

RF : 락볼트 선단정착구 100 : 락볼트정착헤드RF: Lock Bolt Fixing Hole 100: Lock Bolt Fixing Head

110 : 콘형부 112 : 테이퍼면110: cone portion 112: tapered surface

114 : 락볼트결합공 116 : 걸림단턱114: lock bolt coupling hole 116: locking step

118 : 암나사 120 : 락볼트헤드부118: female thread 120: lock bolt head portion

122 : 수나사 124 : 수용부122: male thread 124: receiving portion

130 : 락볼트 고정부재 132 : 결합공130: lock bolt fixing member 132: coupling hole

200 : 쐐기식 확장부재200: wedge type expansion member

210 : 연결편 212 : 핀공210: connecting piece 212: pin ball

220 : 정착편 222 : O-링홈220: fixing piece 222: O-ring groove

230 : O-링 240 : 정착돌기230: O-ring 240: fixing protrusion

300 : 탄성정착수단 310 : 연결회동바300: elastic fixing means 310: connecting pivot bar

312 : 결합공 320 : 압축부재312: coupling hole 320: compression member

322a : 끼움부 322b : 걸림홈322a: fitting portion 322b: locking groove

324a : 안치헤드부 324b : 결합편324a: Settle head part 324b: Joining piece

326 : 슬라이드공 330 : 압축탄성부재326: slide ball 330: compression elastic member

340 : 홀딩부재 342a : 가이드부340: holding member 342a: guide portion

344 : 인장재통공 346a : 홀딩헤드부344: tension material through hole 346a: holding head

346b : 홀딩안내홈 346c : 스톱볼트공346b: Holding Guide Groove 346c: Stop Bolt Ball

350 : 스톱볼트 400 : 홀딩해제수단350: stop bolt 400: holding release means

410 : 실린더 412 : 볼승강공410: cylinder 412: ball lifting hole

420 : 공기유입관 422 : 공기유입관 결합부420: air inlet pipe 422: air inlet pipe coupling

430 : 홀딩볼 440 : 피스톤플러그430: holding ball 440: piston plug

442a : 압축플러그 442b : 유동홈442a: compression plug 442b: flow groove

444 : 무빙볼 446 : 홀딩볼안착부444: moving ball 446: holding ball seat

448a : 복귀플러그 448b : 안치공448a: Return plug 448b: Settle ball

Claims

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Lock bolt (R) is formed in the outer periphery and inserted into the anchor hole (A), and the lock bolt (R) is coupled to the front end of the lock bolt (R) is inserted with the lock bolt (R) inside Lock bolt fixing hole (RF), the lock bolt tip fixing hole (RF) is inserted into the anchor hole (A), the lock bolt fixing hole 114 is formed with a lock bolt coupling hole 114 is coupled to the front end of the lock bolt (R) The head 100; In the center is provided with a coupling hole 132 is formed threaded to be coupled to the front end of the lock bolt, the lock bolt fixing head 100 is provided inside the lock bolt fixing head 100 and the lock bolt (R) during tensioning Lock bolt fixing member 130 is provided to be firmly fixed to the engaging; A plurality of wedge-type expansion members (200) formed at one end thereof and positioned around the outer circumference of the lock bolt fixing head (100) to be enlarged and fixed to the outer ground on the anchor hole (A) axis; A plurality of wedge-type expansion members 200 are respectively connected and coupled to the connection pieces 210 of the plurality of wedge-type expansion members 200, and the wedge-type expansion members 200 are moved along the outer edge of the lock bolt fixing head 100. Elastic fixing means 300 provided with a compressive elastic member 330 such that elastic force is applied to the plurality of wedge-type expansion members 200 so as to be enlarged and fixed thereto; The lock bolt fixing head 100 includes a tapered surface 112 having a diameter extending from one side to the other side such that the plurality of wedge-type expansion members 200 are positioned around and enlarged when moved to the other side. Cone part 110 is formed with a female bolt 118 is provided with a lock bolt coupling hole 114 penetrated from the center of one side to the other center, the locking step jaw 116 is provided along the inner circumference of one end of the lock bolt coupling hole 114. Wow; The male screw 122 is screwed to the female screw 118 of the cone-shaped portion 110 is formed on one side, the receiving portion 124 is formed in the lock bolt fixing member 130 is formed inward, anchor hole ( A) is formed into a lock bolt head portion 120 is inserted into the inner bottom side;

The elastic fixing means 300 is provided with coupling holes 312 on both sides, and a plurality of connection rotations formed in a lengthwise direction in which one side is pin-coupled to the connection pieces 210 of the plurality of wedge-type expansion members 200. A bar 310;

A pin is coupled to the other side coupling hole 312 of the connecting pivot bar 310 to one side, the other side is provided with a fitting portion (322a) extending in the form of a long axis in the axial direction, the fitting portion 322a is caught on the other side A compression member 320 having a groove 322b formed therein;

A compression elastic member 330 fitted to the fitting portion 322a of the compression member 320 and provided with elastic force applied to the plurality of wedge-type expansion members 200 coupled to the compression member 320;

One side of the compression member 320 is slidingly coupled to hold the holding release means 400 is provided to maintain the compressed elastic member 330 in a compressed state, the other side the compression elastic member 330 is a wedge-type expansion member A holding member 340 fixed to the outer circumference of the lock bolt R to apply an elastic force to the side;

And a stop bolt (350) fixed to the outer circumference of the rock bolt (R) to the holding member (340).

The method of claim 3, wherein

The wedge type expansion member 200

A fork-shaped connection piece 210 having pin holes 212 formed to pin-couple to coupling holes 312 formed at both sides of the connection pivot bar 310 on one side;

A fixing piece 220 having an enlarged thickness from the other side toward the connecting piece 210 and having an O-ring groove 222 formed at one side of the outer edge thereof;

An O-ring (230) coupled to the O-ring groove (222) of the fixing piece (220), and provided to prevent the wedge-type expansion member (200) from spreading to the ground side on the anchor hole (A) axis;

The fixing piece 220, the outer edge of the anchor hole (A) when anchored in the ground anchoring a plurality of fixing projections 240 formed at acute angle to be more firmly fixed; multi-purpose tip anchoring of the lock bolt, characterized in that formed.

The method of claim 3, wherein

The compression member 320 has a locking groove (322b) is formed to be engaged by the holding release means 400 to one side, the cylindrical fitting portion (322a) formed long in the longitudinal direction on the axis;

The other side is formed larger than the diameter of the fitting portion (322a) to form a stage so that one end of the compressive elastic member 330 is set, the outer side of the outer periphery of the connecting hole 310 of the connecting pin 312 pin A settling head portion 324a having a plurality of coupling pieces 324b coupled thereto;

Multi-purpose end fitting of the lock bolt, characterized in that formed; hollow slide hole 326 formed in communication with the other end of the settling head portion (324a) at one end of the fitting portion (322a).

The method of claim 3, wherein

The compression elastic member 330 is a plurality of wedge-type expansion member 200 is expanded to move along the tapered surface 112 of the cone-shaped portion 110 of the lock bolt fixing head 100, the ground inside the anchor hole (A) A multi-purpose end anchoring fastener of a rock bolt, characterized in that formed by the elastic coil spring is applied to the elastic force by compression to be firmly fixed to.

The method of claim 3, wherein

The holding member 340 is slidingly coupled to the slide hole 326 of the compression member 320 to one side of the cylindrical guide portion 342a formed long in the longitudinal direction to guide the compression member 320 on the axis;

A rock bolt through-hole 344 formed through the guide portion 342a from one end to the other end to be coupled with the lock bolt R;

The stop bolt hole penetrated into the lock bolt through hole 344 from the outer circumferential surface of the guide part 342a so as to extend in diameter to the other side and fixedly coupled to the lock bolt R by the stop bolt 350 ( 346c is provided, and holding guide grooves 346b are formed to guide-couple the locking grooves 322b of the other end surface of the compression member 320 along a surface in contact with the guide portion 342a to a holding position.

The holding head portion 346a provided with a releasing means 400 holding one side of the holding guide groove 346b so that the compression elastic member 330 is compressed and fixed so that the compression member 320 is moved in a sliding position on the guide part 342a. Multi-purpose tip fixing sphere of the rock bolt, characterized in that formed.

The method of claim 7, wherein

The holding release means 400 is formed to the inner side of the holding guide groove 346b of the holding head portion 346a,

A hollow cylinder 410 open to an end surface of the holding head portion 346a on the guide portion 342a side;

A ball elevating hole 412 communicated with the holding guide groove 346b from an internal combustion of the cylinder 410;

An air inlet pipe 420 formed to extend from the outside of the anchor hole A to allow compressed air to flow through;

An air inlet pipe coupling part 422 formed in communication with the cylinder 410 on an end surface of the holding head 346a opposite to the guide part, and having one end of the air inlet pipe 420 coupled thereto;

A holding ball 430 coupled to the ball lifting hole 412 so as to be movable;

A piston plug 440 coupled to the cylinder 410 so as to flow back and forth by the compressed air introduced from the air inlet pipe 420;

A return spring 450 positioned to one side of the piston plug 440 and provided to return the piston plug 440 flowed to one side by compressed air to an initial position;

A settling groove 462 in which one end of the return spring 450 is placed is formed so that an elastic force is applied to the piston plug 440, and the cylinder 410 allows the piston plug 440 to be smoothly compressed by compressed air. Multi-purpose tip fixing hole of the lock bolt, characterized in that the cylinder cap (460) is provided to maintain the airtight.

The method of claim 8,

The piston plug 440 is formed with a plurality of flow grooves 442b on one surface of the cylindrical outer edge, the compression plug 442a is directly applied to the compressed pressure of the compressed air is introduced to the air inlet pipe coupling portion 422 side )Wow;

A moving ball 444 fitted to the flow groove 442 b and provided with a compressed air to minimize the frictional force when the piston plug 440 flows in the cylinder;

The compression plug 442a extends to one side and is formed to be smaller than the diameter of the compression plug 442a to form a stage. When the piston plug 440 flows to the cylinder cap 460 by compressed air, the holding ball ( Holding ball seating portion 446 is provided so that the 430 is lowered from the ball lifting hole 412;

The holding ball seating portion 446 extends to one side, the other end of the return spring 450, the return plug 448a is provided with a settling hole (448b); multi-purpose front end fitting of the lock bolt, characterized in that formed by .