Pipe Joint Clamp

Abstract

The present invention relates to a fluid transfer pipe fixing clamp that is installed at the connection part of a fluid transfer pipe to ensure that the connection part maintains airtightness and does not separate even when the fluid pressure proceeding through the fluid transfer pipe is strong. The configuration is such that a groove for receiving a protrusion is formed along one side of the length direction of the inner surface of a semicircular fluid pipe receiving part, and a wedge coupling part is formed along the other side of the length direction of the inner surface of the fluid pipe receiving part to which a wedge is coupled and fixed. The wedge is formed with a tooth having an inclined angle that pushes the fluid transfer pipe located on one side of the connection part toward the connection part to strengthen the coupling force as the two clamps strongly press and fix the connection part of the fluid transfer pipe.

Description

Technology Field

[0001] The present invention relates to a fluid transfer pipe fixing clamp that is installed at the connection part of a fluid transfer pipe to ensure that the connection part maintains airtightness and does not separate even when the fluid pressure flowing through the fluid transfer pipe is strong. Background Technology

[0003] Fluid transfer pipes buried underground to supply various fluids, including water, to a destination are manufactured in fixed length units, so multiple ends of these pipes are interconnected for use.

[0004] A clamp for fixing a connecting part that interconnects conventional fluid transfer pipes is Korean Registered Patent No. 10-0997534 (Patent Document 1), and its configuration is as follows.

[0005] - under -

[0006] In configuring a pipe clamp connector (1) for water supply, wherein a main body (2) is combined with a packing (5) that is in close contact with the pipe (4) in the packing groove (2a) formed on both inner sides, and a clamp (7) separated from the main body (2) can clamp the pipe (4).

[0007] A clamp guide portion (8) is formed on both sides of the main body (2) such that a locking projection (8a) is formed at the end in a 90-degree direction, and the clamp (7) is formed with a tension connection portion (7a) that engages with the locking projection (8a) so that a groove (7b) into which the clamp guide portion (8) is inserted is formed inwardly, and a clamping projection (7c) is formed on both sides of the tension connection portion (7a) to be inserted into the space (8b) between the clamp guide portions (8), and a connecting piece (8d) is formed at both ends to be mutually connected by a bolt and a nut (9), and the space (8b) between the groove (8b) of the tension connection portion (8a) and the clamp guide portion (8) is formed large enough so that sufficient clearance can be formed in the circumferential direction when the clamp guide portion (8) and the clamping projection (7c) are inserted.

[0008] In addition to Korean Registered Patent No. 10-0997534 (Patent Document 1) which has the composition as described above, there is also Korean Registered Patent No. 10-1916699 (Patent Document 2), and its composition is as follows.

[0009] - under -

[0010] A pipe end detachably coupled to an integrated chamber and a nut member for securing the pipe end to the integrated chamber, which is used in conjunction with a piping unit for diverting or extending a fluid flow path.

[0011] It comprises: at least one main clamping part coupled to the nut member in a manner that surrounds the nut member; and an anti-loosening binding part extending from the main clamping part and preventing loosening of the pipe end of the nut member by accommodating either one of the non-circular cross-section of the pipe end and other nut members adjacent to the nut member.

[0012] The main clamping member comprises a first compression member that encloses the nut member by dividing it into two parts, and a second compression member that encloses the remaining part of the nut member, with one side hooked and coupled to the first compression member and the other side bolted, and the first compression member and the second compression member comprise an uneven surface formed on an inner circumference to increase the binding force with the nut member.

[0013] The above anti-loosening fastening part is a sub-clamping part having the same structure and is provided at a position spaced apart from the main clamping part, and

[0014] It further comprises a connecting part that connects the main clamping part and the sub clamping part while forming a certain angle,

[0015] The loosening of each nut member for connecting a plurality of pipe ends connected to the integrated chamber can be prevented by the bonding force between the main clamping part and the sub clamping part without other pulling prevention means, and

[0016] The above connecting portion connects the ends of each first compression member, which is bolted to the second compression member, to each other, and the sub-clamping portion is formed as a pair and is connected to each side of the first compression member of the main clamping portion by the connecting portion, thereby binding together with the main clamping portion nut members forming a T-shaped angle so as to mutually restrain them.

[0017] The above-described (Patent Document 1) and (Patent Document 2) have a problem in that while the fluid transferred through the fluid transfer pipe maintains a constant pressure, the connection part does not become airtight or separate, but when the pressure exceeds that constant pressure, the binding force of the connection part cannot withstand the pressure, resulting in leakage or separation. Prior art literature

[0019] Republic of Korea Registered Patent 10-0997534 (Publication Date: Dec. 01, 2010) Republic of Korea Registered Patent 10-1916699 (Publication Date: Nov. 09, 2018) The problem to be solved

[0020] The present invention was invented to resolve the aforementioned conventional problems, and its purpose is to provide a fluid transfer pipe fixing clamp that prevents fluid leakage into the connection part and prevents the connection part from separating, by interposing a wedge with a serrated edge having an inclined angle that pushes one side of the fluid transfer pipe toward the connection part of the fluid transfer pipe as it is strongly pressed and fixed to the clamp that fixes the connection part of the fluid transfer pipe. means of solving the problem

[0022] The configuration of the means for solving the problem of the present invention to achieve the above objective is,

[0023] In a fluid transfer pipe fixing clamp that wraps around and fixes the connecting portion (310) of a fluid transfer pipe (300) by combining two clamps (100) having a semicircular fluid pipe receiving portion (110) formed therein so as to face each other,

[0024] The two clamps (100) above are,

[0025] A protrusion receiving groove (120) is formed along one side of the length direction of the inner surface of the fluid pipe receiving portion to receive a protrusion (320) formed in the connection portion of the fluid transfer pipe, and

[0026] A wedge coupling part (130) is formed on the other side of the inner surface of the fluid pipe receiving part in the longitudinal direction, to which a wedge that fixes the connection part of the fluid transfer pipe is coupled and fixed.

[0027] The wedge (200) is formed with a tooth (210) having an angle of inclination that strengthens the bonding force by pushing the fluid transfer pipe located on one side of the connection part toward the connection part as the two clamps strongly press and fix the connection part of the fluid transfer pipe. Effects of the invention

[0029] The fluid transfer pipe fixing clamp of the present invention, configured as described above, has the effect of preventing fluid leakage into the connection part even when high-pressure fluid proceeds through the fluid transfer pipe, and maintaining a continuous, strong connection without the connection part separating, by interposing a wedge formed with teeth having an inclined angle that pushes the fluid transfer pipe on one side toward the connection part of the fluid transfer pipe as it is strongly pressed and fixed as described in the purpose above. Brief explanation of the drawing

[0031] FIGS. 1A and 1B are combined perspective views showing an embodiment of a fluid transfer pipe fixing clamp of the present invention. FIGS. 2A and 2B are perspective views of an embodiment of the fluid transfer pipe fixing clamp of the present invention in a detached state. FIGS. 3A and 3B are perspective views showing an embodiment of fixing a connection part of a fluid transfer pipe with a fluid transfer pipe fixing clamp of the present invention. FIG. 4 is an enlarged perspective view of a wedge extracted from the fluid transfer pipe fixing clamp of the present invention. FIG. 5 is a cross-sectional view of a fluid transfer pipe connection fixed with the fluid transfer pipe fixing clamp of the present invention. Specific details for implementing the invention

[0032] The present invention relates to a fluid transfer pipe fixing clamp installed at the connection part of a fluid transfer pipe to ensure that the connection part maintains airtightness and does not separate even when the fluid pressure flowing through the fluid transfer pipe is strong. An embodiment thereof is described below with reference to the attached drawings.

[0033] - under -

[0034] The fluid transfer pipe fixing clamp of the present invention is a fluid transfer pipe fixing clamp that wraps around and fixes the connecting portion (310) of a fluid transfer pipe (300) by combining two clamps (100), each having a semicircular fluid pipe receiving portion (110) formed therein as shown in FIGS. 1a to 5.

[0035] The two clamps (100) are configured such that a protrusion receiving groove (120) is formed along one side of the inner circumference of the fluid pipe receiving portion to receive a protrusion (320) formed in the connection portion of the fluid transfer pipe, and a wedge coupling portion (130) is formed along the other side of the inner circumference of the fluid pipe receiving portion to secure a wedge that secures the connection portion of the fluid transfer pipe, and the wedge (200) is configured such that a tooth (210) having an angle of inclination is formed to push the fluid transfer pipe located on one side of the connection portion toward the connection portion to strengthen the coupling force as the two clamps strongly press and secure the connection portion of the fluid transfer pipe.

[0036] The reason for forming the two clamps (100) in the fluid transfer pipe fixing clamp configuration as described above is to easily wrap and fix the connecting part (310) of the fluid transfer pipe (300) that is installed in succession during the process of burying the fluid transfer pipe (300) underground.

[0037] And the reason for forming a semicircular fluid pipe receiving portion (110) in the two clamps (100) above is to tightly wrap around and fix the connecting portion (310) of the fluid transfer pipe (300), so that the semicircular fluid pipe receiving portion (110) wraps around half of the outer diameter of the connecting portion (310) of the fluid transfer pipe (300) to completely wrap around and fix the outer diameter of the connecting portion (310) of the fluid transfer pipe (300).

[0038] In addition, as shown in FIG. 2a, the two clamps (100) may be connected and installed on one side edge via a hinge (140) so that the two clamps (100) are interconnected and rotate via the hinge (140), and the other side edge may be formed with a flange portion (150) having a coupling hole (151) formed therein, and the flange portion (150) may be fixed by passing a bolt through the coupling hole (151) and securing it with a nut to fix the connection portion (310) of the fluid transfer pipe (300), or as shown in FIG. 2b, the flange portion (150) having coupling holes (151) formed on both sides may be formed, and the flange portions (150) on both sides may be fixed by passing a bolt through the coupling hole (151) and securing it with a nut to fix the connection portion (310) of the fluid transfer pipe (300).

[0039] In addition, a fastening member (152) is formed on one side flange portion (150) of the present invention and a fastening groove (153) is formed on the other side flange portion (150). When the flange portions (150) are to be fixed in an overlapping manner, the fastening member (152) is fastened to the fastening groove (153), thereby aligning the coupling holes (151) and allowing the overlapping flange portions (150) to be easily fixed with a bolt and nut. Furthermore, the overlapping flange portions (150) maintain a strong fastening force.

[0040] In the clamp (100) of the present invention as described above, a protrusion receiving groove (120) is formed along one longitudinal side of the inner circumference of the fluid pipe receiving portion (110) to receive a protrusion (320) formed in the connecting portion (310) of the fluid transfer pipe (300).

[0041] Meanwhile, the protrusion (320) formed on the above-mentioned connecting part (310) is coupled with a sealing member (340), such as a packing, into a sealing member seating groove (330) formed on the back side of the protrusion (320) as shown in FIG. 5, thereby maintaining airtightness with the connecting part (310) of another fluid transfer pipe (300).

[0042] And the protrusion receiving groove (120) is formed to closely receive and connect the protrusion (320), and the shape of the protrusion receiving groove (120) is formed to match the shape of the protrusion (320) so that the connecting part (310) of the fluid transfer pipe (300) and the clamp (100) of the present invention are closely and firmly connected.

[0043] In addition, the wedge coupling part (130) to which the wedge (200) of the present invention is coupled and fixed is configured such that both sides of the wedge (200) are tightly fitted and coupled. In this wedge coupling part (130), fitting holes (131) are formed along the longitudinal direction of both sides of the wedge coupling part (130), and both sides of the wedge (200) are coupled and fixed in a form such that they are forcibly fitted into the fitting holes (131).

[0044] The shape of the above-mentioned insertion hole (131) is preferably in the form of a "U" shaped groove, but any other shape that allows both sides of the wedge (200) to be firmly joined and fixed is also possible.

[0045] In addition, the wedge (200) that is coupled and fixed to the wedge coupling part (130) of the present invention has a tooth (210) having an angle of inclination that pushes one side of the fluid transfer pipe (300) toward the connecting part (310) of the fluid transfer pipe as the two clamps (100) strongly press and coupled the connecting part (310) of the fluid transfer pipe (300), thereby further strengthening the coupling and fixing force.

[0046] The reason for forming an angle of inclination on the above-mentioned teeth (210) is that, during the process in which the two clamps (100) strongly press and secure the connecting part (310) of the fluid transfer pipe (300), the tip of the teeth (210) penetrates the fluid transfer pipe (300) and pressurizes the fluid transfer pipe (300). This causes the fluid transfer pipe (300) on one side receiving the pressure to be pushed toward the connecting part (310) by the angle of inclination on the teeth (210), thereby strengthening the coupling force of the connecting part (310) and, at the same time, preventing the fluid transfer pipe (300) from being pushed in the opposite direction by the fluid pressure.

[0047] As shown in FIG. 4, it is preferable that the inclination angle of the gear (210) performing the above function be formed such that one side is inclined at 10-60° toward the other side and the other side is formed vertically. The reason for this is that if the angle exceeds 60°, the inclination angle is too steep and does not push the fluid transfer pipe (300) on the one side toward the connection part (310), and instead pressurizes the fluid transfer pipe (300) toward the inner diameter. If the angle is maintained at less than 10°, the inclination angle is too gentle and causes a problem in that the fluid transfer pipe (300) on the one side cannot be pushed toward the connection part (310). Therefore, it is preferable to maintain the inclination angle of the gear (210) at 10-60°.

[0048] The wedge (200) having the above-mentioned function is formed in an arc shape that corresponds to the fluid pipe receiving part (110), and the arc-shaped wedge (200) can be divided into multiple parts for use.

[0049] As described above, a wing (220) is formed to protrude along both longitudinal sides of the wedge (200) that is fitted into a fitting hole (131) formed in the wedge coupling part (130).

[0050] The reason the wedge (200) is formed in an arc shape is to ensure that it is closely coupled with the wedge coupling part (130) formed in the inner semicircular fluid pipe receiving part (110) of the clamp (100), and the reason the wedge (200) is divided into multiple parts is to ensure that the wedge coupling part (130) is formed in an arc shape along the semicircular fluid pipe receiving part (110), so that the wedge (200) can be easily inserted into the wedge coupling part (130) formed along the semicircular fluid pipe receiving part (110) to ensure coupling.

[0051] And the wings (220) formed on both sides of the wedge (200) are formed to protrude from both sides of the wedge (200). The reason for forming the protruding wings (220) is to ensure that they are tightly fitted into the fitting hole (131) formed in the wedge coupling part (130) so as not to move and to exert a firm and stable fixing force.

[0052] In addition, the teeth (210) having the above-mentioned angle of inclination are preferably formed in multiple rows, the reason being to maintain the fixing force more strongly when fixing the fluid transfer pipe (300).

[0053] In the clamp (100) of the present invention described above, the groove (120) for receiving a protrusion is coupled with a protrusion (320) formed on one side of the fluid transfer pipe (300) centered on the connecting part (310) of the fluid transfer pipe (300), and the wedge (200) is arranged to be coupled with the other side of the fluid transfer pipe (300) where no protrusion is formed, centered on the connecting part (310) of the fluid transfer pipe (300). As a result, the fluid transfer pipe (300) on one side acts as a stopper through the coupling of the groove (120) for receiving a protrusion and the protrusion (320), and the fluid transfer pipe (300) on the other side acts to apply pressure toward the connecting part (310) by the wedge (200), thereby exhibiting the advantage that the connecting part of the fluid transfer pipe (300) does not leak or separate even when high-pressure fluid flow pressure is generated.

[0054] As described above, the fluid transfer pipe fixing clamp of the present invention, as described in the purpose above, strongly presses the clamp that fixes the connection part of the fluid transfer pipe and, as it connects, pushes the fluid transfer pipe on one side toward the connection part of the fluid transfer pipe to strengthen the connection force, thereby interposing a wedge formed with teeth having an inclined angle that strengthens the connection force, so that even when high-pressure fluid proceeds to the fluid transfer pipe, it does not leak into the connection part, and the connection part does not separate and continuously maintains the connection force. Explanation of the symbols

[0055] 100 : Clamp 110 : Fluid pipe receiving part 120: Groove for receiving protrusion 130: Wedge joint 131 : Insertion hole 140 : Hinge 150: Flange section 151: Connecting hole 152 : Fastener 153 : Fastener groove 200 : Wedge 210 : Serrated 220 : Wing 300 : Fluid transfer pipe 310 : Connection part 320 : Protrusion part 330 : Sealing member seating groove 340 : Sealing member

Claims

Claim 1 A fluid transfer pipe fixing clamp comprising two clamps (100) each having a semicircular fluid pipe receiving portion (110) formed thereon, joined so as to face each other to surround and fix the connecting portion (310) of a fluid transfer pipe (300), wherein the two clamps (100) are formed with a protrusion receiving groove (120) that receives a protrusion (320) formed in the connecting portion of the fluid transfer pipe along one side of the inner circumference of the fluid pipe receiving portion, and a wedge connecting portion (130) formed along the other side of the inner circumference of the fluid pipe receiving portion to which a wedge fixing the connecting portion of the fluid transfer pipe is coupled and fixed, wherein the wedge (200) is formed with a tooth (210) having an inclined angle that pushes the fluid transfer pipe located on one side of the connecting portion toward the connecting portion to strengthen the coupling force as the two clamps strongly press and fix the connecting portion of the fluid transfer pipe. Claim 2 A fluid transfer pipe fixing clamp according to claim 1, wherein the clamp (100) is configured such that one side edge is connected via a hinge (140) and the other side edge has a flange portion (150) formed with a coupling hole (151) and is fixed by a bolt passing through the coupling hole and a nut. Claim 3 A fluid transfer pipe fixing clamp according to claim 1, wherein the clamp (100) is configured such that a flange portion (150) having coupling holes (151) formed on both sides is formed, and the coupling holes are penetrated by a bolt and fixed by a nut. Claim 4 A fluid transfer pipe fixing clamp according to claim 2 or 3, characterized in that a fastening member (152) is formed on one side of the flange portion (150) of the clamp (100), and a fastening groove (153) into which the fastening member is fitted is formed on the other side of the flange portion (150). Claim 5 A fluid transfer pipe fixing clamp according to claim 1, wherein the groove (120) receiving the protrusion is formed in a shape that matches the shape of the protrusion so as to be closely connected to the protrusion formed in the connection part of the fluid transfer pipe. Claim 6 A fluid transfer pipe fixing clamp according to claim 1, wherein the wedge coupling part (130) is characterized by having a fitting hole (131) formed along both longitudinal directions in which both ends of the wedge are fitted and coupled. Claim 7 A fluid transfer pipe fixing clamp according to claim 1, wherein the wedge (200) is formed in an arc shape that corresponds to the fluid pipe receiving part, and the arc-shaped wedge is divided into a plurality of parts, and a wing (220) is formed along both longitudinal sides of the divided wedges to be fitted into a fitting hole formed in the wedge coupling part. Claim 8 A fluid transfer pipe fixing clamp according to claim 1, characterized in that the tooth (210) having the inclination angle is formed in multiple rows. Claim 9 A fluid transfer pipe fixing clamp according to claim 1 or 8, characterized in that the inclination angle of the tooth (210) is formed such that one side is inclined at 10-60° and the other side is formed vertically. Claim 10 A fluid transfer pipe fixing clamp according to claim 1, wherein the groove (120) receiving the protrusion in the clamp is coupled to a protrusion formed on one side of the fluid transfer pipe centered on the connection part of the fluid transfer pipe, and the wedge (200) is arranged to be coupled to a fluid transfer pipe on the other side centered on the connection part of the fluid transfer pipe where no protrusion is formed.

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