KR102393998B1 - Cylinder bellows support - Google Patents

Cylinder bellows support Download PDF

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Publication number
KR102393998B1
KR102393998B1 KR1020200037889A KR20200037889A KR102393998B1 KR 102393998 B1 KR102393998 B1 KR 102393998B1 KR 1020200037889 A KR1020200037889 A KR 1020200037889A KR 20200037889 A KR20200037889 A KR 20200037889A KR 102393998 B1 KR102393998 B1 KR 102393998B1
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South Korea
Prior art keywords
bellows
cylinder
support
tension bolt
spring
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KR1020200037889A
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Korean (ko)
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KR20200040216A (en
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류영대
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류영대
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Priority to KR1020200037889A priority Critical patent/KR102393998B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/048—Bellows with guiding or supporting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/10—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations
    • F16L27/107—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve
    • F16L27/11—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations
    • F16L27/111—Adjustable joints, Joints allowing movement comprising a flexible connection only, e.g. for damping vibrations the ends of the pipe being interconnected by a flexible sleeve the sleeve having the form of a bellows with multiple corrugations the bellows being reinforced
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
    • F16L51/027—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube with external reinforcement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/12—Joints for pipes being spaced apart axially

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Diaphragms And Bellows (AREA)
  • Sealing Devices (AREA)

Abstract

(1) 기술분야/해결과제
본 발명은 진공펌프와 배관의 연결에 사용되는 벨로즈에 장착되는 서포트에 관한것으로,더 상세하게는 벨로즈의 손상을 방지하면서 진공펌프의 진동을 감소시키기 위한 벨로즈서포트에 관한 것이다.
(2) 해결수단
본 발명에 위한 벨로즈서포트는 벨로즈의 유격에 따라 함께 동작 하는 실린더 방식으로 수축팽창의 반복적 움직임과 충격을 흡수하는 스프링(6): 상기 스프링과 연결되어 상하로 움직이는 피스톤로드(4): 상기 스프링의 장력을 조절 할 수 있는 텐션볼트(2)를 포함한다.
(3) 기대효과
상기 실린더 벨로즈서포트를 이용하면 수 없이 반복되는 수축팽창에 의한 벨로즈의 파손을 방지 하여 공정 손실을 줄일 수 있으며 배관을 타고 전달되는 펌프 진동을 감소시켜 장비의 데미지를 줄여 생산성이 향상되고 고가의 장비를 보호 하는 장점이 있다.(1) Technical field/solutions
The present invention relates to a support mounted on a bellows used for connecting a vacuum pump and a pipe, and more particularly, to a bellows support for reducing vibration of a vacuum pump while preventing damage to the bellows.
(2) Solution
The bellows support for the present invention is a cylinder that operates together according to the clearance of the bellows. A spring (6) that absorbs repeated movements and shocks of contraction and expansion: a piston rod (4) that is connected to the spring and moves up and down: the It includes a tension bolt (2) that can adjust the tension of the spring.
(3) Expected effect
By using the cylinder bellows support, it is possible to reduce the process loss by preventing the breakage of the bellows due to repeated contraction and expansion, and to reduce the pump vibration transmitted through the pipe to reduce damage to the equipment, thereby improving productivity and reducing the cost of expensive equipment. It has the advantage of protecting the equipment.

Figure 112021137412757-pat00007
Figure 112021137412757-pat00007

Description

실린더 벨로즈 서포트{CYLINDER BELLOWS SUPPORT} Cylinder Bellows Support {CYLINDER BELLOWS SUPPORT}

본 발명은 진공펌프 및 각종 펌프모터의 진동이 장비로의 전달을 방지하기 위하여 반듯이 장착되는 벨로즈의 파손을 방지하기 위하여 부가적으로 장착하여 사용되는 벨로즈 서포트로써,구체적으로는 스프링을 이용한 실린더형 벨로즈서포트로 벨로즈의 수축과 팽창의 동작에 함께 동작 함으로써 고정형의 서포트 보다 탁월한 진동 흡수와 벨로즈의 수명을 연장 할 수 있다.The present invention is a bellows support that is additionally mounted and used to prevent damage to the bellows that must be mounted to prevent the vibration of a vacuum pump and various pump motors from being transmitted to equipment, specifically, a cylinder using a spring By working together with the contraction and expansion of the bellows with the type bellows support, it is possible to absorb vibration better than the fixed type support and extend the life of the bellows.

일반적으로 진공펌프와 배관으로 연결되어지는 고가의 장비는 진공펌프의 가동시 발생하는 진공도의 변화에 따른 수축과 팽창의 반복으로 인한 충격과 진공펌프 자체의 모터 구동시 발생하는 진동이 배관을 타고 장비에 전달됨으로 인한 장비의 손상이나 에러를 발생하게 되는데 이를 방지하고자 배관의 시작점인 진공펌프측과 끝점인 장비측에 필수적으로 벨로즈를 장착하여야 한다.In general, expensive equipment that is connected to a vacuum pump and a pipe is the equipment that travels through the pipe to generate shock caused by repeated contraction and expansion due to the change in the vacuum level that occurs during operation of the vacuum pump and the vibration generated when the vacuum pump itself is driven by the motor. In order to prevent equipment damage or errors due to the transmission to the system, it is essential to install a bellows on the vacuum pump side, which is the starting point, and the equipment side, which is the end point, of the piping.

이렇게 장착된 벨로즈는 급격한 수축과 팽창의 반복으로 인하여 벨로즈가 파손되는 문제가 발생하는데 이를 보완하는 목적으로 지지대 역활을 하는 벨로즈서포트를 장착하여 벨로즈의 파손을 방지하는 방법을 사용하는 것이 종래의 방법이다.The bellows mounted in this way has a problem that the bellows is damaged due to repeated rapid contraction and expansion. conventional method.

그런데 이렇게 장착한 종래의 벨로즈서포트가 전산볼트를 이용하여 벨로즈를 고정하다보니 벨로즈 본연의 목적인 진동이나 충격을 흡수하지 못하고 전산볼트를 타고 그대로 장비에 전달하게 되는 문제가 발생하게 되어 벨로즈의 수명은 길어지나 고가의 장비에 손실을 주게 되는 역효과를 불러오게 된다.However, since the conventional bellows support mounted in this way uses a computerized bolt to fix the bellows, the original purpose of the bellows, such as vibration or shock, cannot be absorbed, and a problem arises in that it is transmitted to the equipment as it is by riding the computerized bolt. The lifespan of the equipment is prolonged, but it has the adverse effect of causing loss to expensive equipment.

즉 종래의 벨로즈서포트는 장착하지 않을 경우 벨로즈의 수명이 짧아져 공정의 손실이 발생하고 벨로즈서포트를 장착하면 장비에 데미지를 주게 되는 선택적 문제가 발생하게 된다.That is, if the conventional bellows support is not installed, the lifespan of the bellows is shortened, resulting in a loss in the process, and when the bellows support is installed, a selective problem of damaging the equipment occurs.

본 발명품은 이와 같은 문제점을 해소하기 위하여 고안된 것으로 종래의 전산볼트를 이용한 부동의 지지대가 아니라 벨로즈의 수축팽창 동작시 동시에 함께 동작함으로써 벨로즈의 수명도 크게 연장하고 벨로즈 장착의 목적인 충격과 진동이장비로의 전달을 감소시켜 공정의 손실과 장비를 보호 모두를 할수 있게 하기 위한 목적이 있다.The present invention was devised to solve such a problem, and by operating simultaneously during the contraction and expansion of the bellows, rather than as an immovable support using conventional computerized bolts, the lifespan of the bellows is greatly extended, and the purpose of the installation of the bellows is shock and vibration. The purpose of this equipment is to reduce the transfer to this equipment so that both process loss and equipment protection can be achieved.

상기와 같은 과제를 해결하기 위한 수단으로 본 발명품은 실린더형태의 충격완화 장치를 전산볼트 사이에 추가하여 충격과 진동을 충분히 완충 할 수 있도 만들어 진 발명으로 양 끝은 종래의 벨로즈서포트와 동일하게 더블 클램프(11)와 전산볼트(8)로 이루어졌으나 실린더하우징(1)에 스프링(6)과 텐션볼트(2)와 그외 부품들로 조립된 실린더를 포함하는 구조로 이루러진 것이 특징이다.As a means to solve the above problems, the present invention was made to sufficiently buffer shock and vibration by adding a cylinder-type shock-relieving device between the computer bolts. Both ends are the same as the conventional bellows support It is composed of a double clamp 11 and a computerized bolt 8, but it is characterized in that it has a structure including a cylinder assembled with a spring 6, a tension bolt 2, and other parts in a cylinder housing (1).

본 발명은 실린더식 벨로즈서포트로 진공펌프의 가동으로 벨로즈의 수축팽창시 함께 동작하면서 극단적인 수축 반복으로 인한 벨로즈의 파손을 방지하기 위하여 스프링의 고정된 장력을 일정 범위에서 조절 할 수 있는 구조로 이루어져 있기 때문에 진공도에 따라 벨로즈의 유격거리를 조절하여 충격과 진동을 완화시켜 벨로즈의 피로에 의한 파손을 크게 줄일 수 있으며 고가의 장비로 전달되는 진동도 감소시켜 공정의 손실과 장비에 가해지는 데미지를 줄여 벨로즈 파손으로 인한 공정손실을 줄임으로써 생산성을 크게 향상 시킬 수 있다.The present invention is a cylinder-type bellows support that can adjust the fixed tension of the spring within a certain range in order to prevent breakage of the bellows due to repeated extreme contraction while operating together when the bellows is contracted and expanded by the operation of the vacuum pump. Because it has a structure, it is possible to greatly reduce the damage caused by fatigue of the bellows by reducing the shock and vibration by adjusting the clearance distance of the bellows according to the degree of vacuum. Productivity can be greatly improved by reducing the damage applied and reducing the process loss due to bellows breakage.

도 1은 본 발명 실린더 벨로즈서포트를 도시해 보인 분해 사시도.
도 2는 본 발명 실린더 벨로즈서포트를 도시해 보인 조립 사시도.
도 3은 본 발명 실린더 벨로즈서포트를 도시해 보인 단면도.
도 4는 종래의 기술에 따른 벨로즈서포트를 장착한 사시도.
도 5은 본 발명 실린더 벨로즈서포트를 장착한 사시도.1 is an exploded perspective view showing a cylinder bellows support of the present invention.
Figure 2 is an assembly perspective view showing a cylinder bellows support of the present invention.
Figure 3 is a cross-sectional view showing a cylinder bellows support of the present invention.
Figure 4 is a perspective view of mounting a bellows support according to the prior art.
5 is a perspective view of a cylinder bellows support mounted in the present invention.

본 발명의 실시예를 첨부 도면을 참조하여 상세히 설명하면 다음과 같다.
본 발명은 도 1의 분해 사시도에 도시된 부품들로 이루어져 있으며 실린더 하우징(1)을 중심으로 각 부품들이 조립이 된다. 텐션볼트(2)에 더스트실(3)을 삽입한 후 피스톤로드(4)와 전산볼트(8)를 용접(120)하여 텐션볼트(2)에 삽입 조립 하고 텐션볼트(2)의 풀림으로 인한 움직임을 방지하기 위한 고정너트(10)를 텐션볼트(2)에 체결하고 텐션볼트(2)를 하우징(1)의 나사에 조여서 조립한다.An embodiment of the present invention will be described in detail with reference to the accompanying drawings as follows.
The present invention consists of the parts shown in the exploded perspective view of FIG. 1 , and each part is assembled around the cylinder housing 1 . After inserting the dust seal (3) into the tension bolt (2), the piston rod (4) and the computerized bolt (8) are welded (120) to be inserted into the tension bolt (2) and assembled. Assemble by fastening the fixing nut 10 for preventing movement to the tension bolt (2) and tightening the tension bolt (2) to the screw of the housing (1).

다음으로 피스톤(5)을 실린더하우징(1)에 삽입후 피스톤로드(4)의 나사에 체결하여 조립하며 스프링(6)을 실린더하우징(1)에 삽입하고 캡(7)을 실린더하우징(1)에 용접(110)하여 부착하며 캡(7)과 전산볼트(8)를 용접(100)으로 부착하며 상하 각각의 전산볼트(8)에 너트(9)-더블클램프(11)-너트(9)의 순서로 체결하여 조립을 완료 하게 된다.Next, insert the piston (5) into the cylinder housing (1) and assemble it by fastening it to the screw of the piston rod (4), insert the spring (6) into the cylinder housing (1), and insert the cap (7) into the cylinder housing (1) It is attached by welding 110 to the nut (9) - double clamp (11) - nut (9) to the cap (7) and threaded bolt (8) by welding (100), and to each of the upper and lower threaded bolts (8). Assembling is completed by fastening in the order of

다음으로 피스톤(5)을 하우징(1)에 삽입후 피스톤로드(4)의 나사에 체결하여 조립하며 스프링(6)을 하우징(1)에 삽입하고 캡(7)을 실린더하우징(1)에 용접(110)하여 부착하며 캡(7)과 피스톤로드(4)에 전산볼트(8)를 용접(100)으로 부착후 너트(9)를 이용하여 더블클램프(11)를 체결하여 조립을 완료 하게 된다.Next, the piston (5) is inserted into the housing (1) and assembled by fastening it to the screw of the piston rod (4), the spring (6) is inserted into the housing (1), and the cap (7) is welded to the cylinder housing (1). After attaching by (110), the electric bolt (8) is attached to the cap (7) and the piston rod (4) by welding (100), and then the double clamp (11) is fastened using the nut (9) to complete the assembly. .

도 5는 실린더 벨로즈서포트를 장착한 실시의 예를 도시한 사시도로써 벨로우즈플랜지(A)와 배관연결 플랜지(B)에 더블클램프(11)을 이용하여 장착하게 되며 진공펌프의 가동시 벨로즈(C)가 상하로 수축과 팽창을 반복하게 되는데 도3의 단면도에서 보면 실린더하우징(1) 안에 삽입된 스프링(6)이 상시 일정 압력으로 피스톤로드(4)를 밀고 있다가 벨로즈(C)의 수축시 함께 같은 방향으로 움직이면서 벨로즈(C)의 과도한 수축과 충격을 받아내게 되며, 이때의 움직임으로 인하여 피스톤(5)과 실린더하우징(1)의 내벽에서의 마찰로 미세한 파티클이 발생할수 있는데 이 파티클이 실린더하우징(1) 밖으로의 유출을 방지하도록 텐션볼트(2) 내에 더스트실(3)이 삽입되어 있다.5 is a perspective view showing an embodiment in which the cylinder bellows support is mounted. It is mounted using a double clamp 11 on the bellows flange (A) and the pipe connection flange (B), and when the vacuum pump is operated, the bellows ( C) repeats contraction and expansion up and down. In the cross-sectional view of FIG. 3, the spring 6 inserted into the cylinder housing 1 is always pushing the piston rod 4 with a constant pressure, and then the bellows (C) Excessive contraction and shock of the bellows (C) are received while moving in the same direction during contraction, and due to this movement, fine particles may be generated due to friction between the inner wall of the piston (5) and the cylinder housing (1). A dust chamber (3) is inserted in the tension bolt (2) to prevent the particles from flowing out of the cylinder housing (1).

또한 진공펌프의 진공도에 따라 스프링(6)의 장력을 텐션볼트(2)을 조이고 풀러 일정한 범위내에서 조절이 가능하도록 하여 진공도에 따라 벨로즈(C)의 장력조절이 가능하며, 접하여 연결되는 배관과의 조립에 있어서 배관과의 거리 및 수평을 맞춤에 있어서는 더블클램프(11)의 높 낮이를 조절하는 위 아래의 너트(9)를 상하로 조절하여 맞출수가 있다.In addition, according to the vacuum degree of the vacuum pump, the tension of the spring 6 can be adjusted within a certain range by tightening and loosening the tension bolt 2, so that the tension of the bellows (C) can be adjusted according to the degree of vacuum, and the pipe connected in contact When assembling with the pipe, in order to align the distance and level with the pipe, the upper and lower nuts 9 that adjust the height of the double clamp 11 can be adjusted up and down to fit.

1:실린더 하우징 2:텐션볼트
3:더스트실 4:피스톤로드
5:피스톤 6:스프링
7:캡 8:전산볼트
9:너트 10:고정너트
11:더블클램프
100:TIG용접부(캡과 전산볼트) 110:TIG용접부(캡과 실린더하우징)
120:TIG용접부(캡과 피스톤로드)
A:벨로즈 플랜지 B:배관연결플랜지
C:벨로즈 1: Cylinder housing 2: Tension bolt
3: Dust seal 4: Piston rod
5: Piston 6: Spring
7: Cap 8: Computerized bolt
9: Nut 10: Fixing nut
11: Double Clamp
100: TIG welding part (cap and threaded bolt) 110: TIG welding part (cap and cylinder housing)
120: TIG welding part (cap and piston rod)
A: Bellows flange B: Pipe connection flange
C: Bellows

Claims (3)

텐션볼트(2)에 고정너트(10)를 체결하고 텐션볼트(2)의 관통구멍에 더스트실(3)을 삽입 후 전산볼트(8)와 용접(120)된 피스톤로드(4)를 텐션볼트(2)에 삽입하고 실린더하우징(1)의 암나사부분에 텐션볼트(2)의 수나사를 체결한 후 피스톤(5)의 암나사부분과 피스톤로드(4)의 수나사가 조여지고 스프링(6)을 실린더하우징(1)에 넣은 후 캡(7)을 실린더하우징(1)에 용접(110)하고 전산볼트(8)를 캡(7)과 용접(100)으로 부착 후 상하 각각의 전산볼트에 너트(9)-더블클램프(11)-너트(9)의 순서로 조립하는 구조의 실린더 벨로즈서포트로써,
상기 더블클램프(11)를 이용하여 벨로즈플랜지(A)와 배관플랜지(B)에 고정 결합되어 벨로즈(C)의 수축과 팽창에 따라 함께 동작하여 벨로즈(C)에 가해지는 충격을 흡수할 수 있는 것을 특징으로하는 구조의 실린더형 벨로즈서포트.
After tightening the fixing nut 10 to the tension bolt (2), inserting the dust chamber (3) into the through hole of the tension bolt (2), and then attaching the electric bolt (8) and the welded piston rod (4) to the tension bolt (4). After inserting into (2) and tightening the male screw of the tension bolt (2) to the female screw of the cylinder housing (1), the female screw of the piston (5) and the male screw of the piston rod (4) are tightened, and the spring (6) is inserted into the cylinder. After putting in the housing (1), weld 110 the cap (7) to the cylinder housing (1), attach the threaded bolts (8) to the cap (7) and welding (100), and then attach the nuts (9) to each of the upper and lower threaded bolts. )-double clamp (11)-nut (9) as a cylinder bellows support structure assembled in the order,
It is fixedly coupled to the bellows flange (A) and the pipe flange (B) using the double clamp (11) and operates together according to the contraction and expansion of the bellows (C) to absorb the shock applied to the bellows (C). A cylindrical bellows support of a structure characterized in that it can be
 청구항 1 에서,
상기 텐션볼트(2)에 삽입되어 실린더 내부의 분진이 밖으로 누출됨을 방지하는 더스트실(3)을 삽입하는 것을 특징으로 하는 구조의 실린더형 벨로즈서포트.
In claim 1,
A cylindrical bellows support having a structure characterized in that a dust chamber (3) is inserted into the tension bolt (2) to prevent the dust inside the cylinder from leaking out.
 청구항 1 에서,
상기 텐션볼트(2)를 조이고 풀러 스프링(6)의 장력을 가변적으로 조절할 수 있도록 하는 것을 특징으로 하는 구조의 실린더형 벨로즈서포트.
In claim 1,
A cylindrical bellows support having a structure characterized in that it is possible to adjust the tension of the puller spring (6) variably by tightening the tension bolt (2).
KR1020200037889A 2020-03-29 2020-03-29 Cylinder bellows support KR102393998B1 (en)

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JPS6127385A (en) * 1984-07-17 1986-02-06 株式会社東芝 Shock absorber for bellow flange
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JPH1151270A (en) * 1997-07-31 1999-02-26 Tokura Kogyo Kk Clamp device for flange

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