KR101831495B1

KR101831495B1 - Clamp for pipe

Info

Publication number: KR101831495B1
Application number: KR1020150158264A
Authority: KR
Inventors: 박동기
Original assignee: 박동기
Priority date: 2015-11-11
Filing date: 2015-11-11
Publication date: 2018-04-04
Also published as: KR20170055281A

Abstract

The present invention provides a piping clamp.
The pipe clamp includes a body having a first clamp body and a second clamp body having one end hingably connected to the first clamp body and having a groove along an inner circumferential surface thereof, And a bolt member having a hinge coupling member hinged to the hinge coupling member and having a screw hole formed therein, and a hinge coupling portion having one side screwed to the screw hole of the hinge coupling member and a hinge coupling hole formed on the other side of the bolt member, And the bolt member is rotated to narrow or widen the distance between the first clamp body and the second clamp body so that the inner side faces the second clamp body or is pivoted away from the second clamp body And a clamping lever that fixes a distance between the first clamp body and the second clamp body, wherein the clamping bolt is fixed to the hinge- And a hinge pin that penetrates through one side of the burr and rotatably couples the clamping lever to the hinge engaging part. The clamping lever guides the movement of the hinge pin in accordance with the turning, And a guide slot formed on one side of the clamping lever so as to penetrate the hinge pin so as to facilitate separation of the clamping lever and extend toward the other side of the clamping lever, and the clamping lever is adapted to correspond to the second clamping body And the second clamp body is provided on one side of the second clamp body so as to smooth the rotation of the clamping lever, Further comprising a lever mounting groove recessed in a shape corresponding to the shape of one end of the clamping lever, And a second clamping body which is arranged in a direction opposite to a direction of the second clamping body toward the first clamping body from a portion where the clamping lever contacts the second clamping body when the hinge pin is located on the other side of the guide slot And the clamping lever is supported by the contacting portion such that the projecting portion presses one side of the second clamping body in a direction toward the first clamping body, When the clamping lever is rotated in the fastening direction, one end of the clamping lever may be seated in the lever mounting groove and rotated while the hinge pin is positioned at one side of the guide slot.

Description

CLAMP FOR PIPE}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pipe clamp, and more particularly, to a pipe clamp for clamping and fixing a flange portion of a pipe to be connected.

Generally, a clamp is used for a connection between pipes or a connection between pipes and other members in a construction phenomenon such as a building construction work, a construction work, a civil engineering work, a sewer work or a river work.

These clamps usually have a support, a cover, and a fastening bracket to receive the pipe.

Korean Patent Publication No. 2000-0006289 discloses a conventional "clamp and clamp device for pipes".

However, in such a conventional clamp for a pipe, the clamping tool for connecting the other end of the support and the other end of the lid is composed of a bolt and a nut, and the bolt is provided at the other end of the support body, And the support and the cover are fixed by screwing.

This screw connection method is problematic in that when the vibration of the pipe occurs, the screw connection is easy to be released, so that the gas or liquid inside the pipe may be discharged to the outside due to the opening of the pipe connection part.

In addition, the threaded joint has a problem that the thread is easily worn and the life of the product is short.

Korean Patent Publication No. 2000-0006289

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems of the related art, and an object of the present invention is to provide a pipe clamp which can be easily rotated without requiring a separate member for bolt member screw connection.

Another object of the present invention is to provide a pipe clamp for preventing accidental disconnection of a clamp due to vibration of a pipe and preventing accidental discharge of gas or liquid inside a pipe at a connection portion of the pipe or the like .

According to an aspect of the present invention for achieving the above object, the present invention provides a clamping device including a first clamp body, a second clamp body having one end hingably connected to the first clamp body, A bolt having a body portion, a hinge coupling member hinged to one side of the first clamp body and formed with a screw hole, and a hinge coupling portion having one side screwed to the screw hole of the hinge coupling member and a hinge coupling hole formed on the other side thereof, And a bolt member which is hinged to one side of the bolt member and rotates the bolt member so as to narrow or widen the distance between the first clamp body and the second clamp body, And a clamping lever pivotally connected to or spaced from the second clamping body to fix a distance between the first clamping body and the second clamping body, The ramping bolt further includes a hinge pin penetrating the hinge coupling hole and one side of the clamping lever and rotatably coupling the clamping lever to the hinge coupling portion, And a guide slot extending through the one side of the clamping lever so as to penetrate the hinge pin so as to guide the movement of the bolt member and facilitate the fastening and separation of the bolt member and toward the other side of the clamping lever, The lever is formed in a shape corresponding to the second clamp body, and the inner side is provided so as to be in surface contact with the outer circumferential surface of the second clamp body, and the second clamp body is provided so as to smoothly rotate the clamp lever , And a lever mounting groove formed at one side of the second clamp body so as to be formed into a shape corresponding to the shape of one end of the clamping lever When the hinge pin is positioned on the other side of the guide slot, the clamping lever is moved from a portion where the clamping lever and the second clamp body come into contact with each other, from the portion of the second clamp body Wherein the clamping lever is supported by the contact portion so that the protruding portion is located on one side of the second clamping body Wherein the clamping lever is configured such that one end of the clamping lever is seated in the lever mounting groove in a state where the hinge pin is positioned on one side of the guide slot when the clamping lever is rotated in the fastening direction, Thereby providing a piping clamp.

Preferably, the link unit hinges the other end of the first clamp body and the other end of the second clamp body.

Preferably, the clamping bolt is seated, and the seating groove is open to the outside so that the bolt member can be moved in and out as the bolt member is pivoted.

Preferably, the groove of the body portion includes a tapered portion whose diameter gradually decreases toward the outside, and the tapered portion may be curved.

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Preferably, the clamping lever may have a shape corresponding to a shape of an outer circumferential surface of the body portion.

Preferably, the clamping lever may have a reduced thickness from one end to the other end.

Preferably, a bending portion is formed on one side of the body portion to be inserted into a fixing hole formed in the body portion. The bending portion has tension by an elastic member provided inside the body portion. The clamping lever may further include a fixing collar for fixing or unlocking the other end of the clamping lever.

Preferably, the fixing ring may include a handle portion that is bent to protrude from the other side to facilitate rotation of the fixing ring.

Preferably, the hinge fastening member may include a first washer inserted into and coupled to a first mounting groove formed at both ends of the hinge fastening member to prevent separation from the body portion and to strengthen the fastening force with the body portion, .

Preferably, the hinge pin includes a second washer inserted into the second mounting groove formed at both ends of the hinge pin so as to prevent the hinge pin and the clamping lever from being separated from each other and to strengthen the fastening force can do.

By using the pipe clamp according to an embodiment of the present invention, since the bolt member is rotated by the clamping lever, there is no need for a separate member for rotating the bolt member, and it is possible to easily rotate the bolt member .

According to an embodiment of the present invention, it is possible to prevent the coupling of the clamp from being released in advance by tightly fixing the first clamp body and the second clamp body by bringing the clamping lever into close contact with the body portion, The clamping force between the first clamp body and the second clamp body can be further strengthened.

Therefore, according to the embodiment of the present invention, it is possible to prevent the coupling of the clamp from being loosened due to the vibration of the pipe or the like, and to prevent the accident that the gas or liquid inside the pipe is discharged to the connection portion of the pipe or the like have.

1 is a perspective view showing a pipe clamp according to an embodiment of the present invention.
2 is a front view showing a pipe clamp according to an embodiment of the present invention.
3 is a side view showing an inner surface of a first clamp body applied to an embodiment of the present invention.
Fig. 4 is an exploded view of a clamping bolt according to an embodiment of the present invention in a side view of the clamping bolt viewed from the direction "A" in Fig.
FIG. 5 is a view of a bolt member applied to an embodiment of the present invention as viewed from the "B" direction of FIG. 4;
Fig. 6 is a view of the hinge fastening member according to one embodiment of the present invention as viewed in the direction of "C" in Fig.
7 is a front view showing a clamping lever applied to an embodiment of the present invention.
8 is a front view showing a fixing ring according to an embodiment of the present invention.
9 (a) to 9 (c) are views schematically showing a process of fixing a pipe clamp according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

First, the embodiments described below are embodiments suitable for understanding the technical characteristics of the pipe clamp of the present invention. However, the technical features of the present invention are not limited by the embodiments to which the present invention is applied or explained in the following embodiments, and various modifications are possible within the technical scope of the present invention.

A pipe clamp according to an embodiment of the present invention is based on connecting a pipe having a flange or the like to a pipe or fixing and connecting the pipe to another pipe to maintain mutual bonding and airtightness.

1 and 2, a pipe clamp 100 according to an embodiment of the present invention includes a first clamp body 210, a first clamp body 210, The hinge fastener according to one of the claims 1 to 3, wherein the first clamp body (210) comprises a body (200) including a second clamp body (230) hingably connected to the first clamp body A hinge coupling member 310 rotatably coupled to the hinge coupling member 310 and having a screw hole 311 formed therein and a hinge coupling member 310 having one side screwed into the screw hole 311 of the hinge coupling member 310, A clamping bolt 300 having a bolt member 330 having a hinge engaging portion 335 formed with a through hole 336 through which the bolt member 330 is inserted and one end of the clamping bolt 300 hinged to the hinge engaging portion 335 of the bolt member 330, The first clamp body 210 and the second clamp body 310 are rotated by rotating the bolt member 330 to be fastened or separated to the hinge fastening member 310 And a clamping lever 230 is installed on the inner circumferential surface of the clamp body 230 to fix the distance between the first clamp body 210 and the second clamp body 230. [ (400).

The body portion 200 is divided into a first clamp body 210 and a second clamp body 230 formed in a semicircular shape. 1 and 3, the first clamp body 210 and the second clamp body 230 are wrapped around the flange F with the flanges F of the pipe connected to each other being in contact with each other The grooves 211 and 231 can be formed along the inner peripheral surface. Here, the grooves 211 and 231 can be formed so as to be stepped corresponding to the shape of the flange F.

The other end 210b of the first clamp body 210 and the other end 230b of the second clamp body 230 may be hinged to each other. Accordingly, the body part 200 can be opened at one side when inserting or separating the flange F of the pipe.

1, 2 and 4 to 6, the clamping bolt 300 may include a hinge fastening member 310 and a bolt member 330.

The hinge fastening member 310 is rotatably coupled through a hinge fastening hole 213 formed in one side 210a of the first clamp body 210 and a screw hole 311 can be formed.

The bolt member 330 may have a hinge coupling portion 335 formed at one end thereof with threads on the outer circumferential surface thereof and a hinge coupling hole 336 formed through the other end thereof. And can be screwed into the screw hole 311 of the hinge fastening member 310 on one side where the screw thread is formed. The hinge coupling portion 335 may be connected to the clamping lever 400. [

One side of the clamping lever 400 can be hinged to the hinge engaging portion 335 of the bolt member 330. A lever mounting groove 233 may be formed on one side 230a of the second clamp body 230 to receive and seat the one end 400a of the clamping lever 400. [ At this time, the lever mounting groove 233 is formed in a shape corresponding to the shape of the one end 400a of the clamping lever 400, so that the swinging operation of the clamping lever 400 can be smoothly performed.

The clamping lever 400 can narrow or widen the distance between the first clamp body 210 and the second clamp body 230 by rotating the bolt member 330 and fastening or separating the bolt member 330 with the hinge fastening member 310 .

That is, the clamping lever 400 is rotatably provided with the bolt member 330 as a rotation axis, so that the bolt member 330 can be rotated. The clamping lever 400 can adjust the distance between the first clamping body 210 and the second clamping body 230 by screwing or separating the bolt member 330 to the hinge fastening member 310 It can serve as a fastening member.

The clamping lever 400 is pivotally mounted on the hinge coupling hole 336 so that the inner surface of the clamping lever 400 is in close contact with the body 200, It is possible to turn it.

That is, when the bolt member 330 is screwed to an appropriate degree and the distance between the first clamp body 210 and the second clamp body 230 is fixed, the clamping lever 400 is brought into close contact with the body portion 200 . When the bolt member 330 is to be rotated, the bolt member 330 can be pivoted away from the body portion 200.

When the pipe clamp 100 according to one embodiment of the present invention is used, since the bolt member 330 is rotated by the clamping lever 400, a separate member is not required for rotating the bolt member 330 And provides an effect that can be easily rotated.

Since the first clamp body 210 and the second clamp body 230 are fixed by closely fitting the clamping lever 400 to the body 200, the effect of firmly securing the screw connection of the bolt member 330 Can be obtained. Accordingly, the coupling of the pipe clamp 100 can be prevented from being released in advance, and the coupling force between the first clamp body 210 and the second clamp body 230 can be further strengthened.

Therefore, it is possible to prevent the coupling of the clamp from being released due to the vibration of the pipe, and to prevent an accident that the gas or liquid inside the pipe is discharged to the connection portion of the pipe or the like.

The pipe clamp 100 according to an embodiment of the present invention includes a link unit 500 for hinging the other end of the first clamp body 210 and the other end 230b of the second clamp body 230 ).

When the bolt member 330 and the body 200 are disconnected by the clamping lever 400, the first clamp body 210 and the second clamp body 230 rotate the link unit 500 in the direction of the rotation axis As shown in FIG. This allows the piping to be inserted or removed.

The body part 200 may include a seating groove 212 that is open to the outside so that the clamping bolt 300 is seated and the bolt member 330 is pivotally moved.

That is, the seating groove 212 is provided at one side of the first clamp body 210 and the second clamp body 230 to receive the hinge fastening member 310 and the bolt member 330. At this time, when the first clamp body 210 and the second clamp body 230 are unbonded by being opened to the outside (one end side of the body 200, see Fig. 3) The bolt member 330 can be pivoted and separated outward.

3, the recesses 211 and 231 of the body 200 include a tapered portion 211a whose diameter gradually decreases toward the outside, and the tapered portion 211a is curved .

Specifically, the flange (F) (see FIG. 1) formed so as to protrude from the pipe is inserted into the recesses 211 and 231, so that the tapered portion 211a includes the tapered portion 211a corresponding to the projected shape. The opposite surface of the abutting portion of the flange can be contacted. At this time, the tapered portion 211a is curved so that the opposite surface can be in point contact with the body portion 200. [

Accordingly, when the flanges are inserted into or removed from the recesses 211 and 231 of the body portion 200, the flange and the body are brought into point contact with each other, so that the installation and disassembly of the flange can be facilitated and the wear of the flange can be minimized Effect.

2 and 4, the clamping bolt 300 is fixed to the hinge coupling hole 336 of the hinge coupling portion 335 and the one side 400a of the clamping lever 400, And a hinge pin 350 coupled to the hinge coupling part 335 such that the clamping lever 400 is rotatably coupled to the hinge coupling part 335. [

That is, the hinge pin 350 is coupled to the hinge coupling portion 335 of the bolt member 330 and the one side 400a of the clamping lever 400, so that the clamping lever 400 is coupled to the bolt member 330 It can be hinged. Accordingly, the clamping lever 400 can be pivoted in the direction perpendicular to the bolt member 330 by the hinge pin 350.

The clamping lever 400 is formed on one side 400a of the clamping lever 400 so that the hinge pin 350 is inserted through the hinge pin 350. When the bolt member 330 is pivoted according to the turning of the clamping lever 400, And guide slots 410 for guiding the movement of the pins 350 and facilitating fastening and dismounting of the clamping bolts 300.

That is, the guide slot 410 is formed long in one side of the clamping lever 400 to provide a clearance space when the hinge pin 350 is inserted through the hinge pin. The hinge pin 350 moves along the guide slot 410 when the clamping lever 400 is pivoted to disengage or engage the bolt member 330 from the body portion 200. As a result, Can be easily combined and separated.

1, 2, and 7, the clamping lever 400 is formed in a shape corresponding to the shape of the outer circumferential surface of the body portion 200, And the inner side surface may be in surface contact with the outer side surface of the body portion 200.

That is, the side surface of the clamping lever 400 and the outer surface of the body 200 are formed to have the same center and radius, so that the inner surface of the clamping lever 400 and the outer surface of the body 200 are in surface contact .

Accordingly, since the clamping lever 400 is in close contact with the body 200, it is possible to minimize the detachment of the clamping lever 400 from the body 200 due to vibration or external physical stimulation. Therefore, the clamping force of the clamping lever 400 can be further increased.

In addition, the thickness of the clamping lever 400 can be reduced from one end 400a to the other end 400b.

Accordingly, the protruding portion of the clamping lever 400 can be minimized. Therefore, since the contact with other equipment can be minimized after the piping connection and installation, it is possible to prevent the clamping lever 400 from turning to the body part 200 by the other equipment, The effect can be obtained.

1, 2 and 8, a pipe clamp 100 according to an embodiment of the present invention is inserted into a fixing hole 235 formed in a body part 200 on one side The clamping lever 610 has a tension by an elastic member provided inside the body part 200. The clamping lever 610 is pivotally moved about the bending part 610 as a rotation axis, And the fixing ring 600 may be fixed at the other end thereof.

That is, the fixing ring 600 is formed by bending a metal or the like, has a bent portion 610 opened to be inserted into the fixing hole 235 at one side, and can be bent and closed at the other side. An elastic member such as a spring capable of applying tension to the fixing ring 600 may be provided inside the body 200. The other end of the clamping lever 400 can be fixed with tension by rotating the fixing ring 600 and fitting the clamping lever 400 into the other side while the fixing ring 600 is installed on the body 200 .

The clamping ring 600 is fixed with the tension at the other end of the clamping lever 400 while the clamping lever 400 is in tight contact with the body 200 to fix the bolt member 330, Thereby providing an effect of preventing the turning of the clamping lever 400. [

Therefore, according to the embodiment of the present invention, the fixing force and the coupling force of the clamping lever 400 can be further increased by the fixing ring 600. [

The fixing ring 600 may include a handle 630 that is bent to protrude from the other side and facilitates rotation of the fixing ring 600.

Accordingly, in the turning operation for releasing the clamping lever 400 in a state where the clamping lever 400 is fixed, the worker grips the protruding grip 630 and rotates the clamping ring 600, It is possible to easily release the fixing member 600. [

More preferably, the handle 630 may be formed to be bent toward the clamping lever 400 in a state where the clamping lever 400 is fixed. Accordingly, the piping clamp 100 of the present invention can minimize the protruded portion by the grip portion 630.

The hinge fastening member 310 is fastened to the first mounting groove 313 formed at both ends of the hinge fastening member 310 so as to prevent the hinge fastening member 310 from being separated from the body portion 200 and to strengthen the fastening force with the body portion 200. [ And a first washer 315 inserted and joined.

Specifically, the first washer 315 can be installed between the end of the hinge fastening member 310 and the body 200 by being inserted into the first mounting groove 313.

More preferably, the first washer 315 has an opening 315a for fitting the first mounting groove 313 in a part thereof so that the first mounting groove 313 can be easily attached to the hinge fastening member 310 formed integrally therewith May be formed. The first washer 315 may be formed with a tread 315b to facilitate the operation of fitting the first washer 315 into the first mounting groove 313 through the opening 315a.

By this first washer 315, the hinge fastening member 310 can be prevented from being separated from the body portion 200 at the time of binding and rotation, and the binding force can be enhanced.

The hinge pin 350 is fixed to the second mounting groove 353 formed at both ends of the hinge pin 350 so as to prevent the hinge pin 350 from being separated from the hinge coupling portion 335 and the clamping lever 400, And a second washer 355 inserted and joined.

That is, the second washer 355 can be installed between the end of the hinge pin 350 and the clamping lever 400 by being inserted into the second mounting groove 353. More preferably, the second washer 355, like the first washer 315, is provided with a second mounting groove 353 for facilitating mounting on the hinge pin 350 formed integrally with the second mounting groove 353, An opening 355a through which the groove 353 is inserted may be formed. The second washer 355 may be formed with a tread 355b to facilitate the operation of fitting the second washer 355 into the second mounting groove 353 through the opening 355a.

The second washer 355 prevents the clamping lever 400 from being separated from the bolt member 330 when the clamping lever 400 is pivoted and fixed, and the fixing force is further enhanced.

The shape of the first washer 315 and the second washer 355 is not limited to the illustrated embodiment and the description above and may be applied to the first mounting groove 313 and the second mounting groove 353 So that it is possible to prevent the hinge fastening member 310 and the clamping lever 400 from being separated from each other.

9 (a) to 9 (c) schematically show a tightening operation and fixing process of the pipe clamp 100 according to an embodiment of the present invention.

9 (a) to 9 (c), a tightening operation and fixing process of the pipe clamp 100 according to an embodiment of the present invention will be described. However, the operation of the present invention is not limited to the illustrated embodiments, and various modifications may be made within the technical scope of the present invention.

First, as in the embodiment shown in FIG. 9 (a), a flange (not shown, see FIG. 1) of a pipe to be connected is connected to the first clamp body 210 and the second clamping body 230 are disposed. The clamping lever 400 can be pivoted in the direction of the arrow ("D" direction) in a state in which the hinge pin 350 is moved to the other side of the guide slot 410.

Thus, one side 400a of the clamping lever 400 can be seated in the lever mounting groove 233 of the second clamp body 230, as in the embodiment shown in FIG. 9 (b). Thereafter, the bolt member 330 and the hinge fastening member 310 are screwed together by rotating the clamping lever 400 in the direction indicated by the arrow ("E") so that the first clamp body 210 and the second clamp The distance between the bodies 230 can be narrowed and bound.

9 (c), after the clamping of the first clamp body 210 and the second clamp body 230 is completed, the clamping lever 400 is moved in the direction of the arrow So that the inner surface of the clamping lever 400 is brought into surface contact with the outer surface of the second clamp body 230.

The other end 400b of the clamping lever 400 can be fixed with a tension by rotating the fixing ring 600 in the direction of the arrow shown in the figure (G direction). Accordingly, the fixing process of the pipe clamp 100 of the present invention can be completed.

On the other hand, the operation of releasing the fixation of the pipe clamp 100 can be performed by reversing the fixed installation process shown in FIG.

In addition, by firmly fixing the first clamp body and the second clamp body with the clamping lever in close contact with the body portion, it is possible to prevent the coupling of the clamp from being unfolded in advance, and the clamping force between the first clamp body and the second clamp body Can be further strengthened.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention, It will be appreciated that those skilled in the art will readily understand the present invention.

100: piping clamp 200:
211: groove 211a: tapered portion
212: seat groove 213: hinge fastener
230: second clamp body 231: groove
233: Lever mounting groove 235: Fixing hole
300: clamping bolt 310: hinge fastening member
313: first mounting groove 315: first washer
330: bolt member 331:
335: Hinge coupling part 336: Hinge coupling hole
350: Hinge pin 353: Second mounting groove
355: second washer 400: clamping lever
410: guide slot 500: link portion
600: Fixing ring 630: Handle part

Claims

A body including a first clamp body and a second clamp body hingably connected to the first clamp body, the body having a groove formed along an inner circumferential surface thereof;
And a bolt member having a hinge coupling member hinged to one side of the first clamp body and formed with a screw hole, and a hinge coupling portion having one side screwed into the screw hole of the hinge fastening member and a hinge coupling hole formed through the other side thereof Clamping bolt; And
Wherein the bolt member is hinged on one side of the bolt member to rotate the bolt member so that the distance between the first clamp body and the second clamp body is narrowed or widened so that the inner side is in close contact with the second clamp body, And a clamping lever pivoted to fix the distance between the first clamp body and the second clamp body,
The clamping bolt further includes a hinge pin penetrating through the hinge coupling hole and the one side of the clamping lever and rotatably coupling the clamping lever to the hinge coupling portion,
The clamping lever is formed at one side of the clamping lever so as to penetrate the hinge pin so as to guide the movement of the hinge pin according to the swing and facilitate the fastening and separation of the bolt member, A guide slot,
Wherein the clamping lever is formed in a shape corresponding to the second clamping body, the inner side surface of the clamping lever is in surface contact with the outer circumferential surface of the second clamping body,
The second clamp body further includes a lever mounting groove formed on one side of the second clamp body so as to be smoothly formed in a shape corresponding to the shape of one end of the clamping lever so as to smooth the rotation of the clamping lever,
Wherein the clamping lever is configured such that when the hinge pin is located on the other side of the guide slot when the clamping lever is rotated in the clamping direction, the clamping lever is moved from a portion where the clamping lever contacts the second clamping body, And a portion projecting in a direction opposite to a direction toward the first clamp body is formed,
Wherein the clamping lever is supported by the contacted portion such that the projecting portion presses one side of the second clamping body in a direction toward the first clamping body,
Wherein one end of the clamping lever is seated in the lever mounting groove and rotated while the hinge pin is located at one side of the guide slot when the clamping lever is rotated in the fastening direction.

The method according to claim 1,
And a link portion hingedly connecting the other end of the first clamp body and the other end of the second clamp body.

[2] The apparatus of claim 1,
Wherein the clamping bolt is seated on the outer periphery of the clamping bolt, and the clamping bolt is seated on the outer periphery of the clamping bolt.

The method according to claim 1,
Wherein the groove of the body portion has a tapered portion whose diameter gradually decreases toward the outside, wherein the tapered portion has a curved shape.

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The method according to claim 1,
Wherein the clamping lever is formed in a shape corresponding to the shape of the outer circumferential surface of the body portion.

The method according to claim 1,
Wherein the clamping lever is thinned from one end to the other end.

The method according to claim 1,
And an elastic member provided within the body portion to provide tension to the body portion. The body portion is tensioned by rotating the bent portion with the rotation axis, and the clamping lever Further comprising a fixing ring which is fixed by being hooked on the other end of the pipe and releases the fixing.

10. The apparatus according to claim 9,
And a grip portion bent to protrude from the other side to facilitate rotation of the fixing ring.

The hinge fastener according to claim 1,
And a first washer inserted into and coupled to a first mounting groove formed at both ends of the hinge fastening member to prevent separation from the body portion and to strengthen the fastening force with the body portion.

The hinge pin according to claim 1,
And a second washer inserted into and coupled to a second mounting groove formed at both ends of the hinge pin to prevent separation from the hinge coupling portion and the clamping lever and to strengthen the clamping force.