KR101180757B1 - Clamp - Google Patents

Abstract

The present invention relates to a clamp, and can be wrapped around the pipe, a band member facing both sides, a first coupling rod connected to one side of the band member and having a plurality of through and fastening holes, connected to the other side of the band member A second coupling rod having a plurality of through holes and fastening holes and facing the first coupling rod, a first bolt fastened through the through holes of the first coupling rod and fastened to the fastening hole of the second coupling rod, and the second coupling rod. And a second bolt that penetrates the through-hole of the coupling rod and is fastened to the fastening hole of the first coupling rod, and the through-hole of the first coupling rod and the coupling hole of the second coupling rod face each other, and the through-hole of the second coupling rod and the The fastening holes of the first coupling rods face each other, and the first bolt and the second bolt are different from each other in the direction in which they are tightened.

Description

Clamp {Clamp}

The present invention relates to a clamp.

Generally, the clamp wraps around the joint of the pipe through which the fluid or gas passes and maintains hermeticity.

These clamps are tightened as bolt nuts to maintain the tightness of the seam by the tensile forces generated therefrom. However, as the bolt nut was loosened by external vibration, the clamp could not maintain airtightness continuously.

In addition, the clamp is formed of a thin metal plate so that movement is free when the clamp is tightened with the bolt nut. Injuries occurred when the body contacted the edge of the clamp while the clamp was formed of a thin metal plate.

The present invention provides a clamp that prevents loosening while expanding the contact area and prevents accidents due to loosening.

The clamp according to an embodiment of the present invention, the first member of the band member can be wrapped around the pipe, both sides facing each other, connected to one side of the band member and having a plurality of through holes and fastening holes, the band member A second coupling rod connected to the other side and having a plurality of through holes and fastening holes and facing the first coupling rod, a first bolt fastened to the fastening hole of the second coupling rod through the through hole of the first coupling rod, and And a second bolt which penetrates the through-hole of the second coupling rod and is fastened to the coupling hole of the first coupling rod, and the through hole of the first coupling rod and the coupling hole of the second coupling rod face each other. The through hole and the fastening hole of the first coupling rod face each other, and the first bolt and the second bolt are different from each other in the direction of rotation to be tightened.

The through hole portion of the first coupling rod is formed with a seating groove for seating the head of the first bolt, respectively, and the through hole portion of the second coupling rod is formed with a seating groove for seating the head of the second bolt. When the heads of the first bolt and the second bolt are seated in the seating grooves of the first coupling rod and the second coupling rod, the first bolt and the second bolt may not rotate.

The clamp surrounds the first coupling rod, has a hole connected to the through hole and the coupling hole of the first coupling rod, and surrounds the first coupling ring and the second coupling rod coupled to one side of the band member. 2 may further include a second connection ring having a hole connected to the through hole and the fastening hole of the coupling rod and coupled to the other side of the band member.

The first bolt and the second bolt are respectively connected to the body portion penetrating the through hole, one side of the body portion, the fastening portion fastened to the fastening hole, the other side of the body portion is connected to the through hole It may include a catching portion caught in, and the head protruding from the catching portion and formed in a polygon.

The clamp further includes a watertight member disposed along the inner circumferential surface of the band member, and a plurality of protrusions may be formed on the inner surface of the watertight member to contact the circumferential surface of the pipe.

The clamp according to another embodiment of the present invention, may wrap the joint of the pipe, the band member facing each other, the watertight member located between the band member and the pipe, and the coupling portion for fixing the band member to the pipe And the watertight member includes a watertight body disposed along the inner circumferential surface of the band member and a protection part surrounding upper and lower portions of the watertight body to be bent in an outward direction to surround the upper and lower portions of the band member, respectively. .

According to another embodiment of the present invention, the clamp may cover a joint of a pipe, and a band member facing each other, a protective ring disposed along the upper and lower edges of the band member and having a predetermined color, the band And a watertight member located between the member and the pipe, and a coupling part for fixing the band member to the pipe.

The coupling part is a first connection ring which is mounted on one side of the band member which is rolled and has a plurality of holes, a second connection ring which is mounted on the other side of the band member and which is rolled and has a plurality of holes, inside the first connection member. A first coupling rod disposed in and having a through hole and a fastening hole connected to the hole of the first connection ring, and a second coupling having a through hole and a fastening hole located inside the second connection member and connected to the hole of the second connection ring. A first bolt fastened through the rod, a through hole of the first coupling bar, and fastened to the fastening hole of the second coupling bar, and a second bolt fastened to the fastening hole of the first coupling bar through the through hole of the second coupling bar. It may include.

The band member may be any one selected from the group consisting of stainless steel, aluminum, fiberglass reinforced plastic (FRP), glass-reinforced plastic (GRP), or a combination thereof.

The clamp may be formed along a circumferential surface of the band member, and may further include a pleat portion for reinforcing the band member.

According to an embodiment of the present invention, the first bolt is coupled in the other direction on one side of the clamp, the second bolt is coupled in one direction on the other side of the clamp so that any one of the first and second bolts is tightened when vibrating the clamp. Therefore, even if vibration occurs in the clamp, the clamping force of the clamp can be maintained continuously.

According to an embodiment of the present invention, the protective part and the protection ring of the watertight member wrap around the upper part and the lower part of the band member, thereby preventing the injury of the operator.

According to an embodiment of the present invention, the protective ring may be formed in a predetermined color to produce various clamps. This can improve the aesthetics of the pipe.

1 is an exploded perspective view showing a clamp according to an embodiment of the present invention.
Figure 2 is a perspective view of the clamp shown in FIG.
3 is a cross-sectional view of the clamp taken along line III-III shown in FIG. 1;
4 is a cross-sectional view showing a state in which a protection unit is formed in the watertight member shown in FIG.
5 is a perspective view showing a state in which the protective ring is coupled to the clamp shown in FIG.
6 is a front view showing the clamp shown in FIG.
FIG. 7 is a cross-sectional view of the clamp taken along the line VII-VII shown in FIG. 2; FIG.
8 is a perspective view showing another embodiment of the bolt shown in FIG.
9 is a perspective view showing a state in which the nut is coupled to the bolt shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated by like reference numerals throughout the specification.

Then, a clamp according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

 1 is an exploded perspective view showing a clamp according to an embodiment of the present invention, Figure 2 is a perspective view of the clamp coupling shown in FIG.

1 and 2, the clamp 1 according to the present embodiment includes a band member 10, a watertight member 30, and a coupling part 20.

The band member 10 is formed with a predetermined area. The band member 10 may surround a joint of a pipe (not shown) through which a fluid or gas passes. But the wrapping may not be the seam. When the band member 10 wraps the pipe, both sides of the band member 10 in the longitudinal direction may face each other or may overlap. The band member 10 may be round, oval or polygonal depending on the shape of the pipe when the pipe is wrapped.

The band member 10 is formed to a thickness of 0.5MM to 1.5MM to bend easily when wrapping the pipe. If the thickness of the band member 10 is 0.5MM or less, it can be easily bent and broken. And when the thickness of the band member 10 is 1.5MM or more does not bend when wrapping the pipe workability is reduced.

The wrinkle part 11 is formed in the surface of the band member 10 along the longitudinal direction. The pleats 11 reinforce the band member 10 to have strength. However, the pleats 11 may be omitted.

The band member 10 may be formed of any one selected from the group consisting of stainless steel, aluminum, fiberglass reinforced plastic (FRP), glass-reinforced plastic (GRP), or a combination thereof. . However, the present invention is not limited to the material of the band member 10.

Next, the watertight member 30 will be described with reference to FIGS. 3 to 5.

3 is a cross-sectional view of the clamp taken along the line III-III shown in FIG. 1, FIG. 4 is a cross-sectional view showing a state in which a protection part is formed in the watertight member shown in FIG. 3, and FIG. A perspective view showing a state in which a protective ring is coupled.

3 and 5, the watertight member 30 according to the present embodiment is made of rubber and positioned between the band member 10 and the pipe, and includes a watertight body 31 and a protection part 32. . The watertight member 30 is compressed by the band member 10 to prevent the fluid, gas or the like from leaking from the joint of the pipe.

The watertight body 31 is disposed along the inner circumferential surface of the band member 10. A plurality of protrusions 311 are formed in the vertical direction at a portion where the watertight body 31 and the pipe contact each other. The protrusion 311 may be compressed by concentrating pressure when the band member 10 wraps the pipe. The compressed protrusion 311 improves watertightness.

Referring to FIG. 4, the protection part 32 is formed by bending an upper end portion and a lower end portion of the watertight body 31 in an outward direction. The protection part 32 surrounds the upper end and the lower end of the band member 10. The protection part 32 surrounding the upper and lower ends of the band member 10 prevents the operator's body from contacting the upper and lower ends of the band member 10. By the protection part 32, the body of the operator may not directly contact the upper end and the lower end of the band member 10, thereby preventing the operator from being injured. However, as shown in FIG. 3, the protection part 32 may be omitted.

On the other hand, as shown in Figure 5, if the protective part 32 is omitted, the removable protective ring 33 can be coupled to the upper portion and the lower portion of the band member 10. The protective ring 33 may be made of rubber or the like. The protection ring 33 may be formed in various colors such as green, gray, and blue to match the surrounding environment. The color of the protection ring 33 improves the piping and the peripheral appearance of the clamp 1.

Next, the coupling unit 20 will be described with reference to FIGS. 1, 2, and 6.

6 is a front view illustrating the clamp shown in FIG. 2, and FIG. 7 is a cross-sectional view of the clamp taken along the line VII-VII shown in FIG. 2.

Coupling portion 20 according to the present embodiment is to firmly fix the band member 10 to the pipe to close the watertight member 30 to the pipe, the first, second connecting rings (21a, 21b), the first, second Coupling rods 22a and 22b and first and second bolts 23a and 23b.

The first connection ring 21a is located at one side of the band member 10, and the second connection ring 21b is located at the other side of the band member 10. The first and second connection rings 21a and 21b are mounted on the outer surface of the band member 10. At this time, the second connection ring 21b is coupled away from the other side of the band member 10 in one direction by a predetermined distance so that the other side of the band member 10 is overlapped by being located inside one side. Meanwhile, the first and second connection rings 21a and 21b may be formed by bending both sides of the band member 10 in the outward direction.

The first and second connection rings 21a and 21b disposed at both sides of the band member 10 face each other, and when the band member 10 surrounds the pipe, the first and second connection rings 21a and 21b may contact each other. As shown in FIG. 2, the first and second connection rings 21a and 21b are curled, and accommodating parts 211a and 211b are formed therein. A plurality of holes 212a and 212b connected to the receiving portions 211a and 211b are formed at intervals in the first and second connection rings 21a and 21b. The first and second connection rings 21a and 21b may be formed of the same material as the band member 10.

Next, the first and second coupling rods 22a and 22b will be described.

The first and second coupling rods 22a and 22b are disposed in the receiving portions 211a and 211b of the first and second connection rings 21a and 21b, respectively. In the first and second coupling rods 22a and 22b, through holes 221a and 221b and fastening holes 223a and 223b having screws formed on the circumferential surface thereof are alternately formed at intervals. The through holes 221a and 221b of the first and second coupling rods 22a and 22b and the fastening holes 223a and 223b are connected to the holes 212a and 212b of the first and second connection rings 21a and 21b. . Meanwhile, the screws of the fastening holes 223a and 223b of the first coupling rod 22a may be left-handed screws, and the screws of the fastening holes 223a and 223b of the second coupling rod 22b may be right screws. However, as shown in FIG. 8, the threads of the fastening holes 223a and 223b may be omitted.

Meanwhile, as shown in FIG. 7, the through holes 221a and 221b of the first coupling rod 22a and the coupling holes 223a and 223b of the second coupling rod 22b face each other, and the second coupling rod ( The through holes 221a and 221b of 22b face the fastening holes 223a and 223b of the first coupling rod 22a. In addition, seating grooves 222a and 222b are formed in the through holes 221a and 221b of the first and second coupling rods 22a and 22b. The seating grooves 222a and 222b are larger than the through holes 221a and 221b. The seating grooves 222a and 222b may be formed in a circular or polygonal shape.

The first and second coupling rods 22a and 22b may be formed of the same material as the band member 10. The cross-sectional shape which looked at the 1st, 2nd coupling rod 22a, 22b in plan view is circular. However, it may be formed into a polygon such as a triangle or a square.

The first and second bolts 23a and 23b adjust the gap between the first and second coupling rods 22a and 22b so that the band member 10 can be firmly fixed to the pipe. The heads of the first and second bolts 23a and 23b are formed in polygons so as to engage tools such as spanners. In addition, hexagonal grooves are formed in the heads of the first and second bolts 23a and 23b so that a tool such as a hexagon wrench can be used. However, the hexagonal grooves can be omitted.

The first bolt 23a penetrates through the through holes 221a and 221b of the first coupling rod 22a at one side of the clamp 1 and is fastened to the coupling holes 223a and 223b of the second coupling rod 22b. . The second bolt 23b is fastened to the fastening holes 223a and 223b of the first coupling rod 22a through the through holes 221a and 221b of the second coupling rod 22b on the other side of the clamp 1. .

When the first and second bolts 23a and 23b are tightened to narrow the interval between the first and second connection rings 21a and 21b, the other side of the band member 10 overlaps with the one side portion, and the band member 10 is connected to the pipe. Tightly wrapped. The watertight member 30 may be pressed against the surface of the pipe by the pressure of the band member 10 surrounding the pipe.

These first and second bolts 23a and 23b are rotated in different directions to tighten and loosen. This is because the first bolt 23a is coupled in the other direction at one side of the clamp 1, and the second bolt 23b is coupled in the one direction at the other side.

In addition, when vibration occurs in the pipe, the clamp 1 may be shaken. By such shaking, the first and second bolts 23a and 23b fastened to the fastening holes 223a and 223b of the first and second coupling rods 22a and 22b may rotate. Depending on the direction of rotation, one of the first and second bolts 23a and 23b may rotate in the tightening direction and the other may rotate in the loosening direction. Due to the bolts being tightened, the fixing force of the band member 10 can be continuously maintained.

Another embodiment of the first and second bolts 23a and 23b will be described with reference to FIG. 8.

Referring to FIG. 8, the first and second bolts 23a and 23b may allow an operator to easily connect a tool such as a spanner, and may include body parts 231a and 231b, fastening parts 232a and 232b, and locking parts. 233a and 233b, and heads 234a and 234b.

The body parts 231a and 231b are formed in a cylindrical shape and are located in the through holes 221a and 221b of the first and second coupling rods 22a and 22b. One side of the body portion (231a, 231b) is formed with fastening portions 232a, 232b having a screw formed on the outer circumferential surface, the fastening portions 232a, 232b are fastening of the first and second coupling rods (22a, 22b) It is fastened to the ball (223a, 223b) and screwed.

The locking portions 233a and 233b are located at the other side of the body portions 231a and 231b and are seated in the seating grooves 222a and 222b. The locking parts 233a and 233b prevent the body parts 231a and 231b from moving in the direction of the fastening holes 223a and 223b.

The heads 234a and 234b protrude from the locking portions 233a and 233b by which a hand tool (not shown) such as a wrench is engaged. The heads 234a and 234b are formed in polygons and have a predetermined length. The heads 234a and 234b having a predetermined length protrude out of the first and second connection rings 21a and 21b through the holes 212a and 212b of the first and second connection rings 21a and 21b. In this way, the heads 234a and 234b protrude out of the first and second connection rings 21a and 21b to facilitate tool engagement.

On the other hand, as shown in Figure 9, the screw thread may be omitted in the fastening holes (223a, 223b). In this case, the nut 24 is coupled to the first and second bolts 23a and 23b. At this time, the polygonal head portion of the first and second bolts 23a and 23b is in close contact with the mounting grooves 222a and 222b. In this case, the mounting grooves 222a and 222b may be formed in a polygonal shape so that the first and second bolts 23a and 23b do not rotate. The nut 24 has a predetermined length so that the nut 24 may protrude out of the holes 212a and 212b of the first and second connection rings 21a and 21b. This facilitates the engagement of a tool (not shown) when loosening and tightening the nut 24.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1: clamp 10: band member
11: pleated portion 20: coupling portion
21a: first connecting ring 21b: second connecting ring
211a and 211b: accommodating part 212a and 212b: holes
22a: first coupling rod 22b: second coupling rod
221a, 221b: through hole 222a, 222b: seating groove
223a, 223b: fastener 23a: first bolt
23b: second bolts 231a, 231b: body
232a, 232b: fastening part 233a, 233b: locking part
234a, 234b: head 24: nut
30: watertight member 31: watertight body
311: TURN 32: PROTECTION
33: protective ring

Claims (10)

The band member which can wrap a pipe, and which both sides face,
A first coupling rod connected to one side of the band member and having a plurality of through holes and fastening holes;
A second coupling rod connected to the other side of the band member and having a plurality of through holes and coupling holes and facing the first coupling rod;
A first bolt which penetrates the through-hole of the first coupling rod and is fastened to the coupling hole of the second coupling rod, and
A second bolt fastened to the fastening hole of the first coupling bar by passing through the through hole of the second coupling bar;
Including;
The through hole of the first coupling bar and the fastening hole of the second coupling bar face each other, the through hole of the second coupling bar and the fastening hole of the first coupling bar face each other, and the rotation direction in which the first bolt and the second bolt are tightened. Two different
clamp. In claim 1,
The through hole portion of the first coupling rod is formed with a seating groove for seating the head of the first bolt, respectively
The through hole portion of the second coupling rod is formed with a seating groove for seating the head of the second bolt,
When the heads of the first bolt and the second bolt are seated in the mounting grooves of the first coupling rod and the second coupling rod, the first bolt and the second bolt do not rotate.
clamp. In claim 1,
A first connection ring surrounding the first coupling bar and having a hole connected to the through hole and the fastening hole of the first coupling bar, and coupled to one side of the band member;
A second connection ring surrounding the second coupling rod and having a hole connected to the through hole and the fastening hole of the second coupling rod and coupled to the other side of the band member;
Clamp including more. In claim 1,
The first bolt and the second bolt are each
A body part penetrating the through hole,
A fastening part connected to one side of the body part and fastened to the fastening hole,
A catching part connected to the other side of the body part and caught by the through hole, and
Head portion protruding from the locking portion and formed of a polygon
Containing
clamp. In claim 1,
Further comprising a watertight member disposed along the inner circumferential surface of the band member,
The inner surface of the watertight member has a plurality of protrusions are formed in contact with the peripheral surface of the pipe
clamp. It can wrap the joint of the pipe, the band member facing both sides,
A watertight member located between the band member and the pipe, and
Coupling part for fixing the band member to the pipe
Including;
The watertight member is
A watertight body disposed along an inner circumferential surface of the band member;
The upper part and the lower part of the watertight body are bent in the outer direction to protect the upper and lower portions of the band member respectively
Containing
clamp. It can wrap the joint of the pipe, the band member facing both sides,
A protective ring disposed along edges of the upper and lower ends of the band member and having a predetermined color;
A watertight member located between the band member and the pipe, and
Coupling part for fixing the band member to the pipe
Clamp comprising a. In claim 6 or 7,
The coupling portion
A first connection ring mounted on one side of the band member and having a plurality of holes;
A second connection ring mounted on the other side of the band member and having a plurality of holes
A first coupling rod positioned in the first connection member and having a through hole and a fastening hole connected to the hole of the first connection ring,
A second coupling rod positioned in the second connection member and having a through hole and a fastening hole connected to the hole of the second connection ring;
A first bolt which penetrates the through-hole of the first coupling rod and is fastened to the coupling hole of the second coupling rod, and
A second bolt fastened to the fastening hole of the first coupling bar by passing through the through hole of the second coupling bar;
Containing
clamp. In any one of claims 1, 6 and 7,
The band member is any one selected from the group consisting of stainless steel, aluminum, fiberglass reinforced plastic (FRP), glass-reinforced plastic (GRP), or a combination thereof. In any one of claims 1, 6 and 7,
A clamp formed along the circumferential surface of the band member, the clamp further comprises a corrugation portion for reinforcing the band member.

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