KR20210023581A - The two step loose prevented bolt and skrew - Google Patents

The two step loose prevented bolt and skrew Download PDF

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Publication number
KR20210023581A
KR20210023581A KR1020190103973A KR20190103973A KR20210023581A KR 20210023581 A KR20210023581 A KR 20210023581A KR 1020190103973 A KR1020190103973 A KR 1020190103973A KR 20190103973 A KR20190103973 A KR 20190103973A KR 20210023581 A KR20210023581 A KR 20210023581A
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KR
South Korea
Prior art keywords
threaded portion
nut
female threaded
male
bolt
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KR1020190103973A
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Korean (ko)
Inventor
한병율
윤현수
양동원
윤설
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(주)엘 테크
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Priority to KR1020190103973A priority Critical patent/KR20210023581A/en
Publication of KR20210023581A publication Critical patent/KR20210023581A/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/30Locking exclusively by special shape of the screw-thread
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00Features common to bolt and nut
    • F16B33/02Shape of thread; Special thread-forms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/02Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

The present invention relates to a structure for two-stage loose prevention bolt and nut. More specifically, the structure has a simple structure, prevents fastening from being randomly loosened in various conditions regardless of a use manner, a vibration size, and impact, and has an easy loosening property of fastening.

Description

이단풀림방지 볼트 및 너트 구조{THE TWO STEP LOOSE PREVENTED BOLT AND SKREW}Two-stage loosening prevention bolt and nut structure {THE TWO STEP LOOSE PREVENTED BOLT AND SKREW}

본 발명은 이단풀림방지 볼트 및 너트 구조에 관한 것으로서, 보다 상세하게는, 구조가 간단하고, 사용양태, 진동크기, 충격에 관계없이 다양한 조건에서 체결의 풀림이 임의로 해제되는 것이 방지되며, 체결의 해제가 용이한 이단풀림방지 볼트 및 너트 구조에 관한 것이다. The present invention relates to a two-stage anti-loosening bolt and nut structure, and more specifically, a simple structure, and prevents the loosening of the fastening from being arbitrarily released under various conditions regardless of the usage mode, vibration size, and impact. It relates to a two-stage loosening prevention bolt and nut structure that is easy to release.

차량, 철도차량의 통행을 위한 교량에 사용되는 볼트와 너트의 경우 차량, 철도차량의 과중한 무게와 그 무게로 인한 진동과 바람 등으로 볼트와 너트의 풀림 현상이 보다 더 빈번하게 발생되는 것이 오늘날의 실정이다.In the case of bolts and nuts used in bridges for the passage of vehicles and railroad vehicles, it is today that loosening of bolts and nuts occurs more frequently due to the excessive weight of the vehicle and railroad vehicle and vibration and wind caused by the weight. Actually.

하천, 호수, 해협, 만, 운하, 저지 또는 다른 교통로나 구축물 위를 건너갈 수 있도록 만든 고가 구조물인 교량에 체결된 볼트와 너트를 살펴보면 시간이 경과하면 할수록 차량, 철도차량의 진동 및 충격, 바람으로 인해서 그 결합상태가 헐거워져 볼트와 너트의 풀림현상이 발생되어 예상치 못한 돌발 사고를 초래하는 문제가 있었다.Looking at the bolts and nuts fastened to a bridge, which is an elevated structure made to cross over rivers, lakes, straits, bays, canals, lowlands, or other traffic routes or structures, as time passes, the vibrations, shocks, and winds of vehicles and railway vehicles. As a result, the coupling condition became loose, causing the bolt and nut to loosen, causing an unexpected accident.

이와 관련한 종래기술로, 풀림방지형 볼트와 너트 체결구조 중에는 통상의 스프링와셔나 치와셔를 체결물과 너트사이에 개재시켜 주는 타입이나 볼트 체결부위에 본드 등의 강력접착제를 토포하여 고착시켜주는 타입, 너트 일측에 링을 삽설하여 체결시 볼트 끝단부위에 체착되도록 하는 타입, 너트의 어느 한면과 그 대향면 부위를 프레싱 등의 가압수단으로 찌그러뜨려 나사부 내경을 타원형화 시켜주는 타입, 제1너트에 편심형태의 제2너트를 체결하여 쐐기 효고로 체결력을 증가시키는 타입 등 여러 가지 방안이 안출되고 있었다.As a related art, among the loosening-preventing bolt and nut fastening structures, a common spring washer or tooth washer is interposed between the fastener and the nut, or a strong adhesive such as bond is deposited on the bolt fastening part to fix it. , A type that inserts a ring on one side of the nut so that it is attached to the end of the bolt when fastening, a type that crushes one side of the nut and the opposite side with a pressing means such as pressing to make the inner diameter of the screw part oval, and the first nut Several methods have been devised, such as a type of tightening the eccentric type of the second nut to increase the clamping force with a wedge hyogo.

아울러, 볼트에 오른나사와 왼나사의 양방향 나사산을 내어 각각 오른나사와 왼나사 너트를 체결하여 시계방향과 반시계 방향 어느 쪽으로 힘을 받더라도 체결력을 유지하도록하여 회전체의 풀림을 방지할 수 있는 기술이 있다.In addition, there is a technology that prevents loosening of the rotating body by making a two-way thread of the right screw and the left screw on the bolt and fastening the right screw and the left screw nut, respectively, to maintain the fastening force even when the force is applied in either a clockwise or counterclockwise direction. .

하지만, 상기 종래기술은 볼트와 너트에 변형을 가하여 풀림을 방지하는 것으로, 체결의 해제가 필요시 변형으로 인하여 해제가 용이하게 이루어질 수 없는 문제점이 있었다.However, the prior art is to prevent loosening by applying a deformation to the bolt and nut, there is a problem that the release cannot be easily performed due to the deformation when the release of the fastening is necessary.

또한, 상기 종래기술의 경우 오른나사를 가공하고 그 위에 왼나사를 추가로 가공하게 되는데, 이러한 기술은 제작이 어렵고, 왼나사 가공시 오른나사의 나사산이 손상되어 결국은 허용접촉압력이 낮아지는 단점이 있었다.In addition, in the case of the prior art, the right screw is processed and the left screw is additionally processed thereon, but this technique is difficult to manufacture, and the thread of the right screw is damaged during left screw processing, resulting in a disadvantage that the allowable contact pressure is lowered. .

그리고 설계가 복잡하여 체결 구조체의 제작 및 시공이 번잡하고 어렵거나, 유사시에 해체작업에 지장을 초래하는 문제점이 있었다.In addition, the design is complicated, so that the fabrication and construction of the fastening structure is complicated and difficult, or there is a problem in that dismantling work is hindered in case of emergency.

KRKR 10-022021810-0220218 B1B1 JPJP 2001-0824362001-082436 AA

본 발명은 상기와 같은 문제점을 감안하여 안출된 것으로, 본 발명의 목적은, 왼 나사 체결과 오른 나사 체결을 연속하여 하나의 체결구조를 형성하는 이단풀림방지 볼트 및 너트 구조를 제공하는 데 있다.The present invention has been conceived in view of the above problems, and an object of the present invention is to provide a two-stage anti-loosening bolt and nut structure forming one fastening structure by successively fastening left and right screws.

상기한 바와 같은 목적을 달성하기 위한 특징에 따르면, 제1머리부와, 상기 제1머리부 일측에서 더 연장되어 형성되되 끝단에 제1수나사산부가 형성된 제1원기둥부와, 상기 제1원기둥부 일측에서 더 연장되어 형성되되 끝단에 제2수나사산부가 형성된 제2원기둥부로 구성되는 볼트부; 상기 볼트부에 결합되고, 내부에 상기 제1수나사산과 상응하는 제1암나사산부와, 상기 제1암나사산부의 끝단에서 더 연장되어 형성되는 제2암나사산부로 구성되는 제1너트; 및 상기 제1너트에 결합되고, 제2머리부와, 상기 제2머리부 일측에서 더 연장되어 형성되되 외주연을 따라 상기 제2암나사산부와 상응하는 제3수나사산부가 형성되는 제3원기둥부와, 상기 제2머리부와 제3원기둥부를 연통하여 형성되되 일단에 상기 제2수나사산부와 상응하는 제3암나사산부가 형성된 수용홈으로 구성되는 제2너트;를 포함한다.According to a feature for achieving the above object, the first head portion, the first cylindrical portion further extended from one side of the first head portion, the first male threaded portion formed at the end, and the first cylindrical portion A bolt portion formed to be further extended from one side and constituted of a second cylindrical portion having a second male threaded portion formed at an end thereof; A first nut that is coupled to the bolt portion and includes a first female threaded portion corresponding to the first male thread therein, and a second female threaded portion extending further from an end of the first female threaded portion; And a third cylindrical portion coupled to the first nut and further extending from one side of the second head and the second head, and having a third male threaded portion corresponding to the second female threaded portion along an outer periphery thereof. And a second nut formed by communicating with the second head portion and the third cylindrical portion, and comprising a receiving groove at one end having a third female threaded portion corresponding to the second male threaded portion.

이때, 제2수나사산부의 피치와, 제2암나사산부의 피치 및 제3수나사산부의 피치는 동일한 치수로 형성되고, 상기 제2암나사산부와 제3수나사산부 간의 이격은 제2수나사산부와 제2너트부의 제3암나사산부 간의 이격보다 크게 형성된다.At this time, the pitch of the second male threaded portion, the pitch of the second female threaded portion, and the pitch of the third male threaded portion are formed to have the same dimensions, and the separation between the second female threaded portion and the third male threaded portion is the second male threaded portion and the second It is formed larger than the spacing between the third female threaded portions of the nut portion.

그리고 제1수나사산부와 제1암나사산부는 동일한 방향으로 나사산이 형성되고, 상기 제2수나사산부와 제2암나사산부와 제3수나사산부 및 제3암나사산부는 동일한 방향으로 나사산이 형성된다.The first male threaded portion and the first female threaded portion are threaded in the same direction, and the second male threaded portion, the second female threaded portion, the third male threaded portion, and the third female threaded portion are threaded in the same direction.

본 발명의 이단풀림방지 볼트 및 너트 구조에 따르면, 제1수나산부와 제1암나사산부의 나사산의 방향을 동일하게 형성하고, 상기 제2수나사산부와 제2암나사산부와 제3수나사산부 및 제3암나사산부를 동일한 방향으로 형성하되 상기 제1수나사산부와 제1암나사산부와는 반대로 형성함으로써, 한쪽이 풀림이 발생할 경우 다른 쪽에서는 조임이 발생하므로 진동 또는 기타의 외력이 작용하더라도 전체의 체결력의 저하없이 체결상태를 유지할 수 있는 장점이 있다.According to the two-stage anti-loosening bolt and nut structure of the present invention, the first male thread portion and the first female thread portion are formed in the same direction of the thread, and the second male thread portion, the second female thread portion, the third male thread portion, and the third The female threaded portion is formed in the same direction, but is formed opposite to the first male threaded portion and the first female threaded portion, so when one side is loosened, tightening occurs on the other side, so even if vibration or other external force acts, the overall tightening force is lowered. There is an advantage of being able to maintain the fastened state without.

더구나, 본 발명에 따르면, 변형을 가하는 방식이 아닌 나사산을 서로 반대방향으로 형성하여 체결하는 방식으로, 체결 및 해제의 용이성이 뛰어난 이점이 있다.Further, according to the present invention, there is an advantage in that the screw threads are formed in opposite directions rather than a method of applying a deformation to be fastened, and the ease of fastening and release is excellent.

아울러, 본 발명에 따르면, 구조가 복잡하지 않아 상기 볼트부와 제1너트 및 제2너트를 가공하는 데 있어 가공성이 뛰어난 효과가 있다.In addition, according to the present invention, since the structure is not complicated, there is an effect of excellent workability in processing the bolt portion, the first nut, and the second nut.

도 1은 본 발명의 실시예 1에 따른 볼트부, 제1너트 및 제2너트의 분해상태를 도시한 단면도,
도 2는 제2암나사산부와 제3수나사산부의 간격을 도시한 단면도,
도 3은 제2수나사산부와 제3암나사산부의 간격을 도시한 단면도,
도 4는 도 1을 조립한 상태를 도시한 단면도,
도 5는 본 발명의 실시예 2에 따른 볼트부, 제1너트 및 제2너트의 분해상태를 도시한 단면도,
도 6은 본 발명의 실시예 3에 따른 볼트부, 제1너트 및 제2너트의 분해상태를 도시한 단면도,
도 7은 본 발명의 실시예 4에 따른 볼트부, 제1너트 및 제2너트의 분해상태를 도시한 단면도이다.
1 is a cross-sectional view showing an exploded state of a bolt portion, a first nut, and a second nut according to a first embodiment of the present invention;
2 is a cross-sectional view showing a distance between a second female threaded portion and a third male threaded portion;
3 is a cross-sectional view showing a distance between a second male thread and a third female thread;
Figure 4 is a cross-sectional view showing the assembled state of Figure 1;
5 is a cross-sectional view showing an exploded state of the bolt portion, the first nut and the second nut according to the second embodiment of the present invention;
6 is a cross-sectional view showing an exploded state of the bolt portion, the first nut and the second nut according to the third embodiment of the present invention;
7 is a cross-sectional view showing an exploded state of the bolt portion, the first nut, and the second nut according to the fourth embodiment of the present invention.

이하에서는 첨부된 도면과 함께 본 발명에 따른 이단풀림방지 볼트 및 너트 구조에 대해 자세하게 설명하기로 한다.Hereinafter, the structure of the two-stage loosening prevention bolt and nut according to the present invention will be described in detail together with the accompanying drawings.

[실시예 1][Example 1]

도 1은 본 발명의 실시예 1에 따른 볼트부, 제1너트 및 제2너트의 분해상태를 도시한 단면도이고, 도 2는 제2암나사산부와 제3수나사산부의 간격을 도시한 단면도이며, 도 3은 제2수나사산부와 제3암나사산부의 간격을 도시한 단면도이고, 도 4는 도 1을 조립한 상태를 도시한 단면도이다.1 is a cross-sectional view showing an exploded state of a bolt portion, a first nut, and a second nut according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the distance between the second female threaded portion and the third male threaded portion, 3 is a cross-sectional view showing a distance between the second male threaded portion and the third female threaded portion, and FIG. 4 is a cross-sectional view showing the assembled state of FIG. 1.

도시된 1에 도시된 바와 같이, 본 발명에 따른 이단풀림방지 볼트 및 너트 구조는 크게 볼트부(10), 제1너트(20) 및 제2너트(30)로 구성된다.As shown in Fig. 1, the two-stage loosening prevention bolt and nut structure according to the present invention is largely composed of a bolt portion 10, a first nut 20, and a second nut 30.

먼저, 상기 볼트부(10)는 제1머리부(11)와 제1원기둥부(12) 및 제2원기둥부(13)로 구성된다.First, the bolt part 10 is composed of a first head part 11, a first cylindrical part 12 and a second cylindrical part 13.

상기 제1원기둥부(12)는 상기 제1머리부(11)의 일측에서 소정의 직경으로 더 연장되어 형성되고, 끝단에 제1수나사산부(12a)가 형성된다.The first cylindrical portion 12 is formed to extend from one side of the first head 11 to a predetermined diameter, and a first male threaded portion 12a is formed at an end thereof.

그리고 상기 제1원기둥부(12) 일측에서 상기 제1원기둥부(12)보다 작은 직경으로 더 연장되어 제2원기둥부(13)가 형성되며, 상기 제1원기둥부(12)의 제1수나사산부(12a)가 형성되는 것과 같이 상기 제2원기둥부(13) 끝단에 제2수나사산부(13a)가 형성된다.Further, a second cylindrical part 13 is formed by extending from one side of the first cylindrical part 12 to a smaller diameter than the first cylindrical part 12, and a first male threaded part of the first cylindrical part 12 As (12a) is formed, a second male threaded portion 13a is formed at the end of the second cylindrical portion 13.

이때, 상기 제1수나사산부(12a)와 제2수나사산부(13a)의 나사산 방향은 반대방향이며 구체적인 내용은 후술하기로 한다.At this time, the thread direction of the first male thread portion 12a and the second male thread portion 13a is opposite, and specific details will be described later.

상기 제1너트(20)는, 내부에 상기 제1수나사산부(12a)와 상응하는 제1암나사산부(21)와 상기 제1암나사산부(21)의 끝단에서 더 연장되어 형성되는 제2암나사산부(22)로 구성된다.The first nut 20 includes a first female threaded portion 21 corresponding to the first male threaded portion 12a and a second female threaded portion formed to extend further from the end of the first female threaded portion 21 It consists of (22).

이때, 상기 제1암나사산부(21)와 제2암나사산부(22)는 연통되게 형성되며, 상기 제1수나사산부(12a)와 제1암나사산부(21)의 나사산 방향은 동일한 방향으로 형성된다.At this time, the first female threaded portion 21 and the second female threaded portion 22 are formed to communicate with each other, and the thread direction of the first male threaded portion 12a and the first female threaded portion 21 is formed in the same direction.

상기 제2너트(30)는 크게 제2머리부(31)와 제3원기둥부(32)로 구성된다.The second nut 30 is largely composed of a second head portion 31 and a third cylindrical portion 32.

상기 제3원기둥부(32)는 상기 제2머리부(31)의 일측에서 상기 제2머리부(31)보다 작은 직경의 크기로 제3원기둥부(32)가 연장되어 형성되고, 상기 제3원기둥부(32)에는 외주연을 따라 상기 제2암나사산부(22)와 상응하는 제3수나사산부(32a)가 형성된다.The third cylindrical portion 32 is formed by extending a third cylindrical portion 32 to a size smaller in diameter than the second head portion 31 at one side of the second head portion 31, and the third The cylindrical portion 32 is formed with a third male threaded portion 32a corresponding to the second female threaded portion 22 along the outer periphery.

그리고 상기 제2머리부(31)와 제3원기둥부(32)을 연통하여 내부에 수용홈(33)이 형성되고, 상기 수용홈(33) 일측, 즉, 제2머리부(31) 위치 내의 수용홈(33)에 상기 제2수나사산부(13a)와 상응하는 제3암나사산부(33a)가 형성된다.And the receiving groove 33 is formed inside by communicating the second head portion 31 and the third cylindrical portion 32, and one side of the receiving groove 33, that is, within the position of the second head portion 31 A third female threaded portion 33a corresponding to the second male threaded portion 13a is formed in the receiving groove 33.

한편, 도 2 및 도 3에 도시된 바와 같이, 상기 제2수나사산부(13a)의 피치와, 제2암나사산부(22)의 피치 및 제3수나사산부(32a)의 피치는 동일한 치수로 형성되고, 상기 제2암나사산부(22)와 제3수나사산부(32a) 간의 이격은 제2수나사산부(13a)와 제2너트(30)부의 제3암나사산부(33a) 간의 이격보다 크게 형성되는 것이 바람직하다.On the other hand, as shown in Figs. 2 and 3, the pitch of the second male threaded portion 13a, the pitch of the second female threaded portion 22, and the pitch of the third male threaded portion 32a are formed to have the same dimensions. , The distance between the second female threaded portion 22 and the third male threaded portion 32a is preferably formed larger than the separation between the second male threaded portion 13a and the third female threaded portion 33a of the second nut 30 Do.

한편, 상기한 수나사산부와 암나사산부의 나사산 방향은, 상기 제1수나사산부(12a)와 제1암나사산부(21)의 나사산 방향이 동일하고, 상기 제2수나사산부(13a)와 제2암나사산부(22)와 제3수나사산부(32a) 및 제3암나사산부(33a)의 나사산 방향이 동일하게 형성된다.On the other hand, the thread direction of the male and female threaded portions is the same as the first male threaded portion 12a and the first female threaded portion 21, and the second male threaded portion 13a and the second female threaded portion (22) and the third male threaded portion 32a and the third female threaded portion 33a have the same thread directions.

이러한 나사산 간의 방향을 반대로 형성함으로써, 상기 제1수나사산부(12a)에 대하여 상기 제1암나사산부(21)가 풀리는 방향으로 회전할 때, 상기 제2암나사산부(22)에 결합이 되어 있는 상기 제3수나사산부(32a)에는 조임이 발생하게 되므로 진동 또는 기타의 외력이 작용하더라도 전체의 체결력의 저하 없이 체결상태를 유지할 수 있으며, 반대의 경우에도 마찬가지로 작용하게 된다.By forming the direction between these threads in the opposite direction, when the first female threaded portion 21 is rotated in the loosening direction with respect to the first male threaded portion 12a, the second female threaded portion 22 is coupled to the second Since the tightening occurs in the 3 male threaded portion 32a, even if vibration or other external force acts, the fastening state can be maintained without deteriorating the overall fastening force, and the opposite is the case.

이러한 구성으로, 도 4에 도시된 바와 같이, 체결시키고자 하는 부재(40)를 상기 제1원기둥부(12)에 위치시켜 상기 제1너트(20)와 제2너트(30)를 결합시킴으로써 견고하게 체결시킬 수 있게된다.With this configuration, as shown in FIG. 4, by placing the member 40 to be fastened on the first cylindrical portion 12 and coupling the first nut 20 and the second nut 30 to be solid It becomes possible to fasten it.

[실시예 2][Example 2]

다음으로 본 발명에 따른 이단풀림방지 볼트 및 너트 구조의 실시예 2에 대해서 설명한다. 본 실시예에서는 제1실시예와 동일한 구성에 대한 설명은 생략하며, 제1실시예와 대응되는 구성요소에 대해 동일한 도면번호를 사용하기로 한다. Next, a description will be given of Example 2 of the two-stage loosening prevention bolt and nut structure according to the present invention. In this embodiment, a description of the same components as those of the first embodiment will be omitted, and the same reference numerals will be used for components corresponding to the first embodiment.

도 5는 본 발명의 실시예 2에 따른 볼트부, 제1너트 및 제2너트의 분해상태를 도시한 단면도이다.5 is a cross-sectional view showing an exploded state of the bolt part, the first nut, and the second nut according to the second embodiment of the present invention.

도시된 바와 같이, 실시예 2에서는 제1너트(20)부와 제2너트(30)부와 구성이 변형된다.As shown, in the second embodiment, the first nut 20 portion and the second nut 30 portion and the configuration are modified.

자세히 말해, 상기 제1너트(20)부는 제3머리부(23)와, 상기 제3머리부(23) 일측에서 제3머리부(23)보다 작은 직경으로 돌출되어 제4원기둥부(24)가 형성되되 상기 제4원기둥부(24)의 외주연에 형성된 제4수나사산부(24a)로 구성된다.Specifically, the first nut 20 protrudes from one side of the third head 23 and the third head 23 to a smaller diameter than the fourth cylindrical portion 24 Is formed, and consists of a fourth male threaded portion 24a formed on the outer periphery of the fourth cylindrical portion 24.

그리고 상기 제3머리부(23) 내에 상기 제1암나사산부(21)가 형성되고, 상기 제4원기둥부(24) 내에는 나사산이 형성되지 않고 상기 제2원기둥부(13)의 직경과 대응되는 크기의 관통홈이 형성된다.In addition, the first female threaded portion 21 is formed in the third head portion 23, and the fourth cylindrical portion 24 is not formed with a thread, and corresponds to the diameter of the second cylindrical portion 13. A through hole of the size is formed.

상기 제2너트(30)부는 일측으로부터 상기 제4원기둥부(24) 돌출되는 길이와 상응하는 깊이로 형성되는 상기 제4수나사산부(24a)와 상응하는 크기와 피치의 제4암나사산부(34)와, 상기 제4암나사산부(34) 일측에서 실시예 1과 동일하게 상기 제3암나사산부(33a)가 더 연장되어 형성된다. The second nut (30) portion is a fourth female threaded portion (34) having a size and a pitch corresponding to the fourth male threaded portion (24a) formed to a depth corresponding to a length protruding from one side of the fourth cylindrical portion (24) Wow, the third female threaded portion 33a is further extended from one side of the fourth female threaded portion 34 in the same manner as in the first embodiment.

그리고 실시예 1과 마찬가지로 상기 제1수나사산부(12a)와 제1암나사산부(21)의 나사산 방향이 동일하고, 이외에 상기 제2수나사산부(13a)와 제3암나사산부(33a)와 제4수나사산부(24a)와 제4암나사산부(34)의 나사산 방향이 동일하여 풀림과 조임이 서로 작용하면서 외력에 의해서 풀림이 발생되는 것을 방지할 수 있다.And as in Example 1, the first male threaded portion 12a and the first female threaded portion 21 have the same thread direction, and in addition, the second male threaded portion 13a, the third female threaded portion 33a, and the fourth male threaded Since the thread direction of the ridge 24a and the fourth female thread 34 is the same, it is possible to prevent loosening due to an external force while loosening and tightening act on each other.

[실시예 3][Example 3]

다음으로 본 발명에 따른 이단풀림방지 볼트 및 너트 구조의 실시예 3에 대해서 설명한다. 본 실시예에서는 제1실시예와 동일한 구성에 대한 설명은 생략하며, 제1실시예 및 실시예 2와 대응되는 구성요소에 대해 동일한 도면번호를 사용하기로 한다.Next, a third embodiment of the two-stage loosening prevention bolt and nut structure according to the present invention will be described. In this embodiment, a description of the same configuration as in the first embodiment is omitted, and the same reference numerals are used for components corresponding to the first embodiment and the second embodiment.

도 6은 본 발명의 실시예 3에 따른 볼트부, 제1너트 및 제2너트의 분해상태를 도시한 단면도이다.6 is a cross-sectional view showing an exploded state of the bolt portion, the first nut, and the second nut according to the third embodiment of the present invention.

도시된 바와 같이, 실시예 3에서도 상기 제1너트(20)부와 제2너트(30)부의 구성이 변형된다.As shown, the configuration of the first nut 20 and the second nut 30 is also modified in the third embodiment.

자세히 말해, 상기 제1너트(20)부는 일측에서 상기 제1암나사산부(21)가 소정의 깊이로 형성되고, 상기 제1암나사산부(21)의 일측에서 실시예 2와 동일하게 관통홈이 연장되어 형성되며, 상기 제1너트(20)부 타측에는 상기 제1암나사산부(21)보다 직경이 큰 제5암나사산부(25)가 소정의 깊이로 형성된다.Specifically, the first nut 20 part has the first female threaded part 21 formed to a predetermined depth from one side, and the through groove extended from one side of the first female threaded part 21 in the same manner as in Example 2 And a fifth female threaded portion 25 having a larger diameter than the first female threaded portion 21 is formed on the other side of the first nut 20 to a predetermined depth.

상기 제2너트(30)부는 실시예 1와 동일하게 제2머리부(31)와 제3암나사산부(33a)를 포함하고, 상기 제2머리부(31)의 일측에서 상기 제2머리부(31)보다 작은 직경으로 돌출되어 형성된 제3원기둥부(32)의 외주연과 내주연에 제5수나사산부(35)가 형성되어, 상기 제5수나사산부(35)가 제5암나사산부(25)와 결합되게 된다.The second nut 30 part includes a second head part 31 and a third female thread part 33a as in the first embodiment, and the second head part ( The fifth male threaded portion 35 is formed on the outer periphery and the inner circumference of the third cylindrical portion 32 protruding with a diameter smaller than 31), so that the fifth male threaded portion 35 is a fifth female threaded portion 25 Will be combined with.

이때, 상기 제5수나사산부(35)의 돌출되는 정도는 상기 제5암나사산부(25)와 결합함에 따라 상기 제5암나사산부(25)의 깊이와 동일한 길이로 돌출되어 형성된다.At this time, the degree of protrusion of the fifth male threaded portion 35 is formed to protrude to a length equal to the depth of the fifth female threaded portion 25 as it is combined with the fifth female threaded portion 25.

[실시예 4][Example 4]

다음으로 본 발명에 따른 이단풀림방지 볼트 및 너트 구조의 실시예 4에 대해서 설명한다. 본 실시예에서는 제1실시예와 동일한 구성에 대한 설명은 생략하며, 제1실시예와 실시예 2 및 실시예 3와 대응되는 구성요소에 대해 동일한 도면번호를 사용하기로 한다.Next, a description will be given of Example 4 of the two-stage loosening prevention bolt and nut structure according to the present invention. In this embodiment, a description of the same components as those of the first embodiment will be omitted, and the same reference numerals will be used for the first embodiment and components corresponding to the second and third embodiments.

도 7은 본 발명의 실시예 4에 따른 볼트부, 제1너트 및 제2너트의 분해상태를 도시한 단면도이다.7 is a cross-sectional view showing an exploded state of the bolt part, the first nut, and the second nut according to the fourth embodiment of the present invention.

도시된 바와 같이, 실시예 4에서도 상기 제1너트(20)부와 제2너트(30)부의 구성이 변형된다.As shown, the configuration of the first nut 20 and the second nut 30 is also modified in the fourth embodiment.

상기 제1너트(20)부는 일측에서 상기 제1암나사산부(21)가 소정의 깊이로 형성되고, 상기 제1너트(20)부 타측에서 상기 제1너트(20)부보다 작은 직경으로 제5원기둥부(26)가 돌출되어 형성되되 상기 제1암나사산부(21)보다 큰 직경으로 관통홀이 형성되어 있고, 상기 제5원기둥부(26)의 외주연과 내주연을 따라 제6수나사산부(26a)가 형선된다.The first nut 20 part has the first female threaded part 21 formed to have a predetermined depth on one side, and the first nut 20 part has a diameter smaller than that of the first nut 20 part on the other side. The cylindrical portion 26 is formed to protrude, a through hole is formed with a diameter larger than that of the first female threaded portion 21, and a sixth male threaded portion ( 26a) is sentenced.

상기 제2너트(30)부는 동일한 직경으로 돌출되어 형성되되, 내부에는 상기 제2원기둥의 직경과 상응하는 수용홈(33)이 형성되되 실시예 1과 동일하게 제3암나사산부(33a)가 상기 수용홈(33) 일측에 형성된다.The second nut (30) portion is formed to protrude to the same diameter, and a receiving groove (33) corresponding to the diameter of the second cylinder is formed therein, and the third female threaded portion (33a) is formed in the same manner as in Example 1. It is formed on one side of the receiving groove (33).

상기 제2너트(30)부 일측에는 상기 제6수나사산부(26a)와 대응하는 제6암나사산부(36)가 상기 제5원기둥부(26)가 돌출된 길이와 상응한 깊이로 형성되어, 상기 제6수나사산부(26a)가 제6암나사산부(36)에 결합되게 된다.A sixth female threaded portion 36 corresponding to the sixth male threaded portion 26a is formed on one side of the second nut 30 to a depth corresponding to the length from which the fifth cylindrical portion 26 protrudes, and the The sixth male threaded portion 26a is coupled to the sixth female threaded portion 36.

그리고 상기 실시예 1을 비롯하여 실시예 2 내지 실시예 4의 작용은, 풀림과 조임의 같이 작용함으로써 볼트와 너트의 풀림이 방지될 수 있는 구성이며, 실시예 1에서 실시예 4로 변형되는 예에 따라 풀림이 방지될 수 있는 정도가 더 증가하게 되는 효과가 있다.And the action of Embodiment 1 and Embodiments 2 to 4 is a configuration in which loosening of the bolt and nut can be prevented by acting together with loosening and tightening. Accordingly, there is an effect that the degree to which loosening can be prevented is further increased.

이상에서와 같이 본 발명의 권리는 위에서 설명된 실시예에 한정되지 않고 청구범위에 기재된 바에 의해 정의되며, 본 발명의 분야에서 통상의 지식을 가진 자가 청구범위에 기재된 권리범위 내에서 다양한 변형과 개작을 할 수 있다는 것은 자명하다.As described above, the rights of the present invention are not limited to the embodiments described above, but are defined by what is described in the claims, and various modifications and adaptations within the scope of the rights described in the claims by those of ordinary skill in the field of the present invention It is self-evident that you can do it.

10 : 볼트부 11 : 제1머리부 12 : 제1원기둥부
12a : 제1수나사산부 13 : 제2원기둥부
13a : 제2수나사산부
20 : 제1너트 21 : 제1암나사산부 22 : 제2암나사산부
23 : 제3머리부 24 : 제4원기둥부
24a : 제4수나사산부 25 : 제5암나사산부
26 : 제5원기둥부 26a : 제6수나사산부
30 : 제2너트 31 : 제2머리부 32 : 제3원기둥부
32a : 제3수나사산부 33 : 수용홈
33a : 제3암나사산부 34 : 제4암나사산부
35 : 제5수나사산부 36 : 제6암나사산부
40 : 부재
10: bolt part 11: first head part 12: first cylindrical part
12a: first male thread part 13: second cylindrical part
13a: second male thread
20: first nut 21: first female threaded portion 22: second female threaded portion
23: 3rd head 24: 4th cylinder
24a: 4th male thread 25: 5th female thread
26: fifth cylindrical portion 26a: sixth male thread
30: second nut 31: second head 32: third cylindrical portion
32a: third male thread 33: receiving groove
33a: 3rd female thread 34: 4th female thread
35: 5th male thread 36: 6th female thread
40: absent

Claims (4)

제1머리부(11)와, 상기 제1머리부(11) 일측에서 더 연장되어 형성되되 끝단에 제1수나사산부(12a)가 형성된 제1원기둥부(12)와, 상기 제1원기둥부(12) 일측에서 더 연장되어 형성되되 끝단에 제2수나사산부(13a)가 형성된 제2원기둥부(13)로 구성되는 볼트부(10);
상기 볼트부(10)에 결합되고, 내부에 상기 제1수나사산부(12a)와 상응하는 제1암나사산부(21)와, 상기 제1암나사산부(21)의 끝단에서 더 연장되어 형성되는 제2암나사산부(22)로 구성되는 제1너트(20); 및
상기 제1너트(20)에 결합되고, 제2머리부(31)와, 상기 제2머리부(31) 일측에서 더 연장되어 형성되되 외주연을 따라 상기 제2암나사산부(22)와 상응하는 제3수나사산부(32a)가 형성되는 제3원기둥부(32)와, 상기 제2머리부(31)와 제3원기둥부(32)를 연통하여 형성되되 일단에 상기 제2수나사산부(13a)와 상응하는 제3암나사산부(33a)가 형성된 수용홈(33)으로 구성되는 제2너트(30);를 포함하는 것을 특징으로 하는 이단풀림방지 볼트 및 너트 구조.
The first head portion 11, the first cylindrical portion 12 formed to extend from one side of the first head portion 11 and having a first male threaded portion 12a formed at the end thereof, and the first cylindrical portion ( 12) a bolt portion 10 formed to be further extended from one side and composed of a second cylindrical portion 13 having a second male threaded portion 13a formed at the end thereof;
A second female threaded portion 21 coupled to the bolt portion 10 and formed therein to correspond to the first male threaded portion 12a, and further extended from the end of the first female threaded portion 21 A first nut 20 composed of a female threaded portion 22; And
It is coupled to the first nut 20, is formed to extend further from one side of the second head portion 31 and the second head portion 31, and corresponding to the second female threaded portion 22 along the outer periphery. A third cylindrical portion 32 having a third male threaded portion 32a formed therein, and the second male threaded portion 13a at one end formed by communicating the second head portion 31 and the third cylindrical portion 32 A second nut (30) consisting of a receiving groove (33) in which a third female threaded portion (33a) is formed corresponding to the second nut (30);
제1항에 있어서,
제2수나사산부(13a)의 피치와, 제2암나사산부(22)의 피치 및 제3수나사산부(32a)의 피치는 동일한 치수로 형성되는 것을 특징으로 하는 이단풀림방지 볼트 및 너트 구조.
The method of claim 1,
A two-stage loosening prevention bolt and nut structure, characterized in that the pitch of the second male threaded portion 13a, the pitch of the second female threaded portion 22, and the pitch of the third male threaded portion 32a are formed to have the same dimensions.
제1항에 있어서,
상기 제2암나사산부(22)와 제3수나사산부(32a) 간의 이격은 제2수나사산부(13a)와 제3암나사산부(33a) 간의 이격보다 크게 형성되는 것을 특징으로 하는 이단풀림방지 볼트 및 너트 구조.
The method of claim 1,
A two-stage loosening prevention bolt and nut, characterized in that the separation between the second female threaded portion 22 and the third male threaded portion 32a is formed larger than the separation between the second male threaded portion 13a and the third female threaded portion 33a rescue.
제1항에 있어서,
상기 제1수나사산부(12a)와 제1암나사산부(21)는 동일한 방향으로 나사산이 형성되고, 상기 제2수나사산부(13a)와 제2암나사산부(22)와 제3수나사산부(32a) 및 제3암나사산부(33a)는 동일한 방향으로 나사산이 형성되는 것을 특징으로 하는 이단풀림방지 볼트 및 너트 구조.
The method of claim 1,
The first male threaded portion 12a and the first female threaded portion 21 are threaded in the same direction, and the second male threaded portion 13a and the second female threaded portion 22 and the third male threaded portion 32a, and The third female threaded portion (33a) is a two-stage loosening prevention bolt and nut structure, characterized in that the thread is formed in the same direction.
KR1020190103973A 2019-08-23 2019-08-23 The two step loose prevented bolt and skrew KR20210023581A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100220218B1 (en) 1996-04-09 1999-09-01 정부강 Anti-loose nut and bolt
JP2001082436A (en) 1999-09-14 2001-03-27 Izumi Kogyo Kk Right/left handed screw, manufacture thereof, and nut locking device using right/left handed screw

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100220218B1 (en) 1996-04-09 1999-09-01 정부강 Anti-loose nut and bolt
JP2001082436A (en) 1999-09-14 2001-03-27 Izumi Kogyo Kk Right/left handed screw, manufacture thereof, and nut locking device using right/left handed screw

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