Clamp for connecting pipes

Abstract

The present invention relates to a clamp for connecting pipes and discloses a clamp for connecting pipes characterized by comprising: a hinge block having hinge pins at both ends; a rotating member installed at each end of the hinge block and rotating around the hinge pins so that its inner surface surrounds the joint between pipes; a locking member installed at one free end of the rotating member and connected to the free end of the opposite rotating member; and an observation window formed in the rotating member so that the joint between pipes can be observed from the outside of the rotating member.

Description

Technology Field

[0001] The present invention relates to a clamp for pipe connection, and more specifically, to a clamp for pipe connection that allows a worker to easily identify the installation status of a sealing member provided at a pipe joint and leakage at the pipe joint when installing the clamp at the pipe joint. Background Technology

[0002] Generally, clamps are used to connect two independent pipes. These clamps are widely used for water supply and sewage piping as well as industrial piping, and are secured by attaching an adapter to the pipe connection point and tightening the clamp around the outer circumference of the connection.

[0003] As an example of a field where pipes are connected using such clamps, the process of manufacturing semiconductor devices consists of a series of steps that selectively perform processes such as photolithography, etching, diffusion, and deposition, and the semiconductor manufacturing equipment used to produce these devices is used under strict conditions to improve the precision and cleanliness of the process.

[0004] In other words, the processes of semiconductor manufacturing equipment used for etching, diffusion, and deposition are primarily carried out by injecting process gases into a high-vacuum process chamber, and a gas line using piping is connected to supply the process gases to the process chamber.

[0005] In addition, an exhaust line is connected to the process chamber using piping to regulate the air pressure in the process chamber and to exhaust the process gas or reaction gas remaining after the reaction in the process chamber.

[0006] And since gas lines or exhaust lines inevitably include connection parts, pipe connections are formed at these connection parts, and pipe connection clamps are used to secure the pipe connections.

[0007] In this way, the clamp for securing the connection between pipes is joined in a manner where the pipe is gripped by a clamp body that wraps around the outer circumference of the pipe, and a bolt connected to one side of the clamp body is coupled to a nut on the other side of the clamp body to tighten the clamp body.

[0008] In addition, when pipes are connected by clamps, sealing members such as gaskets or O-rings are installed in the pipes to prevent fluid flowing through the pipes from leaking.

[0009] Since these sealing members have a structure in which the pipes are placed where they face each other and a clamp wraps around and tightens the connection, the sealing member is obscured by the clamp and therefore cannot be seen, meaning that whether the sealing member is installed in the correct position depends on the operator's skill level.

[0010] When a sealing member is installed between pipes in this manner, if the sealing member is not installed in the correct position but is installed in an offset state, a gap occurs between the pipes, and there is a problem of leakage in which fluid leaks to the outside of the pipes through this gap.

[0011] In addition, as mentioned above, even if a leak occurs, there is a problem in that the worker cannot detect whether a leak is occurring in real time from the outside because the clamp wraps around the outer periphery of the pipe, making it impossible to prevent accidents caused by fluid leakage in advance. Prior art literature

[0012] (Patent Document 0001) KR 20-0371982 B (2005.01.15)(Patent Document 0002) KR 10-2176269 B (2020.11.03) The problem to be solved

[0013] The present invention aims to solve the above-mentioned problems by providing a pipe connection clamp that allows a worker to easily identify the installation status of a sealing member provided at a pipe joint when installing a clamp at a pipe joint.

[0014] In addition, the present invention aims to provide a pipe connection clamp that can easily detect when a leak occurs at a pipe joint.

[0015] In addition, the present invention aims to provide a pipe connection clamp having universality so that it can be installed on pipe joints of various diameters. means of solving the problem

[0016] The technical concept of the present invention for achieving the above-mentioned purpose is achieved by a pipe connection clamp characterized by comprising: a hinge block having hinge pins at both ends; a rotating member installed at each end of the hinge block and rotating around the hinge pins so that its inner surface surrounds the joint between pipes; a locking member installed at one free end of the rotating member and connected to the free end of the opposite rotating member; and an observation window formed in the rotating member so that the joint between pipes can be observed from the outside of the rotating member.

[0017] Here, it is preferable that the observation windows be formed in multiple numbers along the circumference of the rotating member.

[0018] In addition, it is preferable that the inner surface of the rotating member is equipped with litmus paper so that if leakage occurs in the joint, the color change of the litmus paper can be detected through the observation window.

[0019] In addition, the rotating member preferably includes a fixed rotating member coupled to a hinge pin of the hinge block, a variable rotating member coupled to the free end of the fixed rotating member and drawn out from the free end of the fixed rotating member according to the diameter of the pipe joint, and a coupling member that coupled the variable rotating member to the free end of the fixed rotating member.

[0020] In addition, it is preferable that the above-mentioned connecting part has teeth formed on the surfaces facing the fixed rotating member and the variable rotating member to mesh with each other.

[0021] In addition, it is preferable that at least one of the fixed rotating member or the variable rotating member has a magnetic body on the surface where the fixed rotating member and the variable rotating member face each other, so that the fixed rotating member and the variable rotating member are connected by magnetic force.

[0022] In addition, the locking member preferably comprises a hinge portion hinged to the free end of the rotating member and having screw threads formed on its inner surface, a lever formed with a locking portion screwed to the inner surface of the hinge portion and rotated by an operator, and a shoulder portion formed at the free end of another rotating member opposite to the rotating member on which the hinge portion is installed, and having a slit formed therein that is smaller than the diameter of the lever.

[0023] Additionally, the locking member further includes a rotation prevention member that prevents the lever inserted into the slit of the shoulder fitting from rotating unintentionally, and the rotation prevention member preferably includes a fitting projection located directly below the locking part adjacent to the shoulder fitting and moving up and down toward an insertion groove formed along the circumference of the locking part, a movable part formed integrally with the fitting projection and having a release button formed thereon that penetrates the shoulder fitting part to one side and is exposed to the side of the shoulder fitting part, and an elastic member installed at the bottom of the movable part to press the fitting projection into the insertion groove of the locking part. Effects of the invention

[0024] According to the pipe connection clamp of the present invention, an observation window is formed in a rotating member that wraps around and tightens a pipe joint, so that a worker can determine through the observation window whether the sealing member provided at the pipe joint is correctly installed or whether the pipe joint is misaligned, thereby enabling accurate pipe connection.

[0025] In addition, the present invention provides a litmus test paper between a rotating member and a pipe joint so that when a leak occurs at the pipe joint, the change in color of the litmus test paper can be identified through an observation window formed in the rotating member, thereby easily identifying the leak at the pipe joint and quickly repairing the pipe, thus preventing leakage accidents.

[0026] In addition, the present invention prevents the lever from rotating unintentionally by providing a rotation prevention member on the locking member, thereby preventing the rotating member that was tightening the pipe from loosening unintentionally. Brief explanation of the drawing

[0027] FIG. 1 is a perspective view showing a clamp for pipe connection according to the present invention. FIG. 2 is a front view showing a pipe connection clamp according to the present invention. FIGS. 3 and FIGS. 4 are a perspective view and a front view showing another embodiment of a clamp for pipe connection according to the present invention. FIG. 5 is a front view showing another embodiment of a rotating member among pipe connection clamps according to the present invention. FIGS. 6 to 9 are front views showing the connection of a pipe connection clamp according to the present invention. FIGS. 10 and FIGS. 11 are an enlarged perspective view and a front view showing another embodiment of a clamp for pipe connection according to the present invention. Specific details for implementing the invention

[0028] Terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe their invention.

[0029] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings.

[0030] FIGS. 1 and FIGS. 2 are a perspective view and a front view showing a pipe connection clamp according to the present invention. Referring to the drawings, the pipe connection clamp according to the present invention comprises a hinge block (100), a rotating member (200) installed at both ends of the hinge block (100) to surround a joint between pipes, and a locking member (300) installed at the free end of the rotating member (200) to connect the rotating members (200) on both sides and to secure the rotating member (200) so that the rotating member (200) can tighten the joint of the pipes.

[0031] In particular, the pipe connection clamp according to the present invention forms an observation window (400) in a rotating member (200) that tightens the joint of the pipe, so that through the observation window (400), it is possible to determine whether a sealing member, such as a gasket or O-ring, interposed in the joint between the pipes is installed in the correct position.

[0032] To elaborate, the hinge block (100) is provided with hinge pins (110) at each end, and the hinge pins (110) are connected to the hinge block (100) by passing through the ends of a rotating member (200) that has a curvature formed on its inner surface to surround the joint of the pipe.

[0033] Accordingly, the rotating member (200) rotates around the hinge pin (110) of the hinge block (100), and the free ends of the rotating member (200) rotate toward each other to wrap around the joint of the pipe.

[0034] Additionally, a locking member (300) is installed on one free end of a rotating member (200), so that when the opposite rotating member (200) and the free end of the rotating member (200) on which the locking member (300) is provided come into close proximity to each other, the locking member (300) is secured to the free end of the opposite rotating member (200), and the inner surface of the rotating member (200) tightens the pipe joint provided on the inner surface of the rotating member (200) to connect the pipes.

[0035] At this time, a sealing member, such as a gasket or O-ring, is interposed at the joint where the pipes meet to seal the connection and prevent leakage.

[0036] In this way, the rotating member (200) that connects the pipes by tightening the pipe joints has an observation window (400) formed therein, so that the worker can check the pipe joints in real time from the outside of the rotating member (200) and determine whether the sealing member is installed in the correct position.

[0037] The observation window (400) formed in the rotating member (200) is formed by penetrating the outer and inner surfaces of the rotating member (200) as shown in FIGS. 1 and 2, and the observation window (400) may be formed in a rectangular shape on the rotating member (200) or may be formed in multiple locations at regular intervals along the circumference of the rotating member (200).

[0038] In this way, as an observation window (400) is formed in the rotating member (200) that wraps around and tightens the joint of the pipe, the operator can check the connection status of the pipe in real time through the observation window (400), so that the sealing member interposed in the joint of the pipe is installed in the correct position or the connection between the pipes is misaligned, thereby allowing the pipe connection to be performed precisely.

[0039] Meanwhile, the pipe connection clamp according to the present invention is provided with a litmus test paper (500) on the inner surface of the rotating member (200) so that leakage can be more easily detected when it occurs at the joint of the pipe. This will be explained with reference to FIGS. 3 and 4.

[0040] FIGS. 3 and 4 are a perspective view and a front view showing another embodiment of a pipe connection clamp according to the present invention. Referring to the drawings, a litmus test sheet (500) is provided on the inner surface of a rotating member (200) so that a worker can easily identify when a leak occurs in the joint of the pipe.

[0041] In particular, the litmus test paper (500) provided on the inner side of the rotating member (200) is installed so as to be exposed to the outside through the observation window (400) formed in the rotating member (200), and the color of the litmus test paper (500) changes as leakage occurs in the pipe joint, and the worker can easily identify the change in color of the litmus test paper (500) through the observation window (400), so that leakage in the pipe joint can be quickly identified and repaired, thereby allowing the pipe facility to be maintained stably.

[0042] Thus, the litmus test paper (500), which allows for the detection of leakage in the pipe joint by a change in color, may be provided on the inner side of the rotating member (200) as described above, but in some cases, the circumference of the joint where the pipes are connected may be wrapped with the litmus test paper (500), and then the rotating member (200) may be installed to wrap around the pipe joint.

[0043] According to the pipe connection clamp of the present invention, an observation window (400) is formed in a rotating member (200) that wraps around and tightens a pipe joint, so that a worker can determine through the observation window (400) whether the sealing member provided at the pipe joint is properly installed or whether the pipe joint is misaligned, thereby enabling accurate pipe connection.

[0044] In addition, the present invention provides a litmus test paper (500) between a rotating member (200) and a pipe joint, so that when a leak occurs in the pipe joint, the color change of the litmus test paper (500) can be identified through an observation window (400) formed in the rotating member (200), thereby easily identifying the leak in the pipe joint and quickly repairing the pipe.

[0045] Meanwhile, the present invention is not limited to the embodiments described above, but can be implemented with modifications and variations within the scope that does not deviate from the gist of the invention, and such modifications and variations should also be considered to fall within the technical concept of the present invention.

[0046] For example, the pipe connection clamp according to the present invention can be installed on pipe joints of various diameters by varying the rotating member (200) to match the diameter of the pipe joint. This will be explained with reference to FIGS. 5 to 9.

[0047] FIG. 5 is a front view showing another embodiment of a rotating member of a pipe connection clamp according to the present invention. Referring to the drawings, the pipe connection clamp according to the present invention has a rotating member (200) divided into a fixed rotating member (210) and a variable rotating member (220), and the variable rotating member (220) can be applied by withdrawing or retracting it from the free end of the fixed rotating member (210) depending on the diameter of the pipe joint.

[0048] To elaborate, the rotating member (200) is composed of a fixed rotating member (210) that is connected to a hinge pin of a hinge block (100), a variable rotating member (220) that engages with the free end of the fixed rotating member (210) and is drawn out from the free end of the fixed rotating member (210) according to the diameter of the pipe joint, and a connecting part (230) that connects the variable rotating member (220) to the free end of the fixed rotating member (210).

[0049] At this time, the connecting part (230) is structured such that teeth are formed on the surfaces facing the fixed rotating member (210) and the variable rotating member (220) and mesh with each other, thereby allowing the variable rotating member (220) to be moved from the fixed rotating member (210) according to the diameter of the pipe joint to adjust the overall length of the rotating member (200).

[0050] That is, when the diameter of the pipe joint is large, the variable rotating member (220) is separated from the fixed rotating member (210) as shown in FIG. 7, and then the position of the variable rotating member (220) from the fixed rotating member (210) is adjusted to match the diameter of the pipe joint as shown in FIG. 8, thereby engaging the connecting part (230).

[0051] When the position of the variable rotation member (220) is adjusted as described above, a pipe joint is positioned on the inner side of the rotation member (200), and then the variable rotation member (220) is rotated around the hinge pin (110) of the hinge block (100) so that they face each other.

[0052] And, when the variable rotating members (220) face each other, as shown in FIG. 9, the variable rotating members (220) are connected through the locking member (300) so that the inner surface of the rotating member (200) tightens the joint of the pipe located on the inner surface of the rotating member (200) to connect the pipes, thereby allowing the length of the rotating member (200) to be varied according to the diameter of the pipe joint, thus improving the versatility of the clamp.

[0053] In addition, so that the fixed rotating member (210) and the variable rotating member (220) can be firmly connected, it is preferable that at least one of the fixed rotating member (210) or the variable rotating member (220) has a magnetic body on the surface facing the fixed rotating member (210) and the variable rotating member (220) so that the fixed rotating member (210) and the variable rotating member (220) are connected by magnetic force.

[0054] For example, if the fixed rotating member (210) and the variable rotating member (220) are made of a non-ferrous metal such as aluminum, a magnetic body may be provided in each of the fixed rotating member (210) and the variable rotating member (220) so that the fixed rotating member (210) and the variable rotating member (220) are connected by magnetic force, or if the fixed rotating member (210) and the variable rotating member (220) are made of a ferrous metal, a magnetic body may be provided in either the fixed rotating member (210) or the variable rotating member (220) so that the fixed rotating member (210) and the variable rotating member (220) are connected by magnetic force.

[0055] Meanwhile, the pipe connection clamp according to the present invention is provided with a rotation prevention member to prevent the locking member (300), installed at one free end of the rotating member (200), from being unintentionally released. This is explained with reference to FIGS. 10 and 11.

[0056] FIGS. 10 and FIGS. 11 are an enlarged perspective view and a front view showing another embodiment of a clamp for pipe connection according to the present invention.

[0057] Referring to the drawings, the locking member (300) is composed of a hinge portion (310) that is hinge-coupled to the free end of a rotating member (200) as shown in FIG. 10 and has screw threads formed on its inner surface, a lever (320) that is screw-fastened to the inner surface of the hinge portion (310) and has a locking portion (330) that is rotated by an operator, and a shoulder portion (350) that is formed at the free end of another rotating member (200) opposite to the rotating member (200) on which the hinge portion (310) is installed, and has a slit (351) that forms a gap smaller than the diameter of the lever (320).

[0058] At this time, the locking part (330) formed on the lever (320) is formed larger than the gap of the slit (351) so that the lever (320) is fitted into the gap of the slit (351) and as the lever (320) is rotated toward the hinge part (310), the locking part (330) presses the shoulder part (350) so that the free ends of the rotating member (200) move toward each other and tighten the pipe located on the inside of the rotating member (200).

[0059] The locking member (300) is provided with a rotation prevention member (600) to prevent the lever (320) from rotating unintentionally. The rotation prevention member (600) is composed of a fitting projection (610), a movable part (620), and an elastic member (640) to prevent the lever (320), which is fitted into the slit (351) of the shoulder part (350), from rotating unintentionally.

[0060] The anti-rotation member (600) comprises: a fitting projection (610) that is positioned directly below the locking portion (330) adjacent to the shoulder portion (350) and moves up and down toward an insertion groove (340) formed along the circumference of the locking portion (330); a movable portion (620) formed integrally with the fitting projection (610), penetrating the shoulder portion (350) to one side and having a release button (630) exposed to the side of the shoulder portion (350); and an elastic member (640) installed at the bottom of the movable portion (620) to press the fitting projection (610) into the insertion groove (340) of the locking portion (330).

[0061] As shown in FIG. 11, when the locking part (330) of the lever (320) is fitted into the slit (351) of the shoulder part (350), the elastic member (640) of the anti-rotation member (600) exerts an elastic force that raises the movable part (620) toward the locking part (330), thereby inserting the fitting projection (610) formed integrally with the movable part (620) into the insertion groove (340) of the locking part (330) to prevent the lever (320) from rotating unintentionally.

[0062] Conversely, when it is necessary to release the locking member (300), as illustrated in the original drawing of FIG. 11, the operator presses the release button (630) exposed on the side of the shoulder part (350) downward to separate the fitting projection (610) inserted into the insertion groove (340) of the locking part (330), and then rotates the lever (320) so that the locking part (330) moves away from the shoulder part (350), thereby releasing the locking member (300) by disengaging the lever (320) from the slit (351) of the shoulder part (350).

[0063] In this way, the present invention prevents the lever (320) from rotating unintentionally by providing a rotation prevention member (600) on the locking member (300), thereby preventing the rotating member (200) that was tightening the pipe from being unintentionally released. Explanation of the symbols

[0064] 100 : Hinge block 110 : Hinge pin 200 : Rotating member 210 : Fixed rotating member 220 : Variable rotation member 230 : Binding part 300 : Locking member 310 : Hinge part 320 : Lever 330 : Locking part 340 : Insertion groove 350 : Shoulder rest 351 : Slit 400 : Observation window 500 : Litmus paper 600 : Anti-rotation member 610 : Insertion projection 620 : Movable part 630 : Release button 640 : Elastic member

Claims

Claim 1 A hinge block equipped with hinge pins at both ends; a rotating member installed at each end of the hinge block and rotating around the hinge pins so that its inner surface surrounds the joint between pipes; a locking member installed at one free end of the rotating member and coupled to the free end of the opposite rotating member; and an observation window formed in the rotating member so that the joint between pipes can be observed from the outside of the rotating member; wherein the observation window is formed in multiple numbers along the circumference of the rotating member, and the inner surface of the rotating member is equipped with litmus paper so that if leakage occurs in the joint, a change in the color of the litmus paper can be detected through the observation window, and the locking member comprises: a hinge part hinge-coupled to the free end of the rotating member and having screw threads formed on its inner surface; and a lever formed with a locking part that is screw-fastened to the inner surface of the hinge part and rotated by an operator. A clamp for connecting pipes, comprising: a clamp portion formed at the free end of another rotating member opposite to the rotating member on which the hinge portion is installed, and having a slit formed therein that is smaller than the diameter of the lever; wherein the locking member further comprises a rotation prevention member that prevents the lever fitted into the slit of the clamp portion from rotating unintentionally; wherein the rotating member comprises: a fixed rotating member coupled to a hinge pin of the hinge block; a variable rotating member that engages with the free end of the fixed rotating member and is drawn out from the free end of the fixed rotating member according to the diameter of the pipe joint; and a coupling portion that secures the variable rotating member to the free end of the fixed rotating member; wherein the coupling portion is characterized by having teeth formed on the surfaces facing the fixed rotating member and the variable rotating member to mesh with each other. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete

Images