KR102262354B1 - Locking tool for pipe connector - Google Patents

Abstract

The present invention relates to a tube joint locking tool. According to an example of the present invention, there is provided a pipe joint locking tool for fixedly coupling a pipe joint including a connecting member and a tightening member with a pipe, the locking tool comprising: a first lever and a second lever rotating about a lever hinge axis; And it consists of a pair coupled to the upper end of the first and second levers, each having a pipe joint support for seating and supporting any one of the connecting member and the tightening member, and tightening according to the operation of the first and second levers. and a tightening chuck that moves the member toward the connecting member and tightens and couples the pipe joint to the pipe, wherein a selected pair of tightening chucks having a support size matching the size of the pipe joint among groups having different sizes of the pipe joint support A pipe joint locking tool is proposed, characterized in that it is replaceably coupled to the upper end of the first and second levers.

Description

LOCKING TOOL FOR PIPE CONNECTOR

The present invention relates to a tube joint locking tool. Specifically, it relates to a pipe joint locking tool capable of easily fixing and coupling pipe joints of various sizes including a connecting member and a tightening member with a pipe.

In general, a pipe is a passage through which a fluid flows. Pipes are used in various equipment or system fields using fluids. When installing a pipe, a pipe joint is used for various reasons such as structural or spatial characteristics. The pipe joint or pipe connector serves to connect the pipe and the pipe.

There are various ways to connect pipes using a pipe joint or a pipe connector. Several methods are used, such as a screw coupling method, a flange joint, or a swaging method. Among these, the fastening method of the pipe joint or the pipe connector by the swaging method that is simple yet airtight is guaranteed. For example, in the field of air conditioning, etc., a method of connecting a pipe by a swaging method is attracting attention as a method for effective pipe connection such as frequent movement or replacement of air conditioning equipment.

The method of connecting the pipe by the swaging method is a method of tightening the pipe joint or the pipe connector by moving the fastening member toward the center using a normal tool and tightening the pipe. At this time, the tool used should be used to fit the size of the pipe joint or the pipe connector. Since the size of the pipe or the pipe joint varies, it is inefficient and inefficient to prepare a tool for each size.

Accordingly, there is a need for a readily usable swaging tool for various sizes of pipe joints, pipe connectors, or pipes.

Republic of Korea Patent Publication No. 10-2007-0079597 (published on August 07, 2007)

An object of the present invention is to propose a pipe joint locking tool capable of easily fixing and coupling pipe joints of various sizes including a connecting member and a fastening member with a pipe by having a replaceable tightening chuck.

In order to solve the above problem, according to one aspect of the present invention, in the pipe joint locking tool for fixing and coupling the pipe joint including the connecting member and the tightening member to the pipe, the first lever rotating about the lever hinge axis and a second lever; And it consists of a pair coupled to the upper end of the first and second levers, each having a pipe joint support for seating and supporting any one of the connecting member and the tightening member, and tightening according to the operation of the first and second levers. and a tightening chuck that moves the member toward the connecting member and tightens the pipe joint to the pipe, wherein a selected pair of tightening chucks having a support size matching the size of the pipe joint among groups having different sizes of the pipe joint support A pipe joint locking tool is proposed, characterized in that it is replaceably coupled to the upper end of the first and second levers.

In one example, the tightening chuck may further include a coupling support member inserted into the coupling support hole and the coupling support hole, respectively, and supporting the coupling state to be maintained with each lever of the tightening chuck when the lever of the pipe joint locking tool is operated.

At this time, in one example, each of the first and second levers is provided with a first chuck support portion formed above the hinge shaft coupling portion, and the tightening chuck further includes a lever fastening groove that is seated and fastened to the first chuck support portion, respectively. , The coupling support hole is formed on either side of the cross-section forming the lever fastening groove, the coupling support member is elastically supported, and a part protrudes from the coupling support hole into the lever fastening groove to support the first chuck support. can be provided

In addition, at this time, in one example, the coupling support member further includes a housing having an internal groove and a screw thread formed on the outside, an elastic body installed in the internal groove to support the ball body as a support, and a tool groove formed on the rear end surface of the housing, , the coupling support member may be screwed into the coupling support hole by turning the tool into the tool groove.

In addition, in one example, the tightening chuck further includes a body portion for forming a lever fastening groove by connecting the upper end of the inner wall having the coupling support hole and the outer wall having a length longer than the inner wall, and the tube joint support portion is the body It has a two-stage groove structure integrally protruding from the upper side of the part, and the stepped wall of the two-stage groove structure supports the protruding side of the connecting member or the tightening member, and each of the first and second levers is located below the hinge shaft coupling part of the clamping chuck. A second chuck support part for supporting the outer wall and preventing rotation or fluctuation of the tightening chuck is further provided, the first and second chuck support parts have a pin structure, and the tightening chuck includes the first chuck of any one of the first and second levers, respectively. The lever fastening groove is seated and fastened to the chuck support part, and rotation or oscillation can be prevented by the other second chuck support part.

In another example, the tube joint locking tool further includes a handle portion respectively formed at lower ends of the first and second levers for lever operation, and at least one of the handle portions is a rotary handle rotatably fixed to the lower end portion of the lever. , the rotation handle may be fixed to be adjustable in rotation angle around the hinge shaft of the handle provided at the lower end of the lever.

At this time, in one example, a plurality of locking grooves are formed in the hinge shaft portion of the handle, and the rotary handle is caught in any one of the plurality of locking grooves according to the rotation of the rotary handle and on the locking piece and the locking piece for fixing the rotational state. It is formed to protrude and has an operation handle for releasing the locking state of the locking piece, and is rotatable in any one or more directions of the other handle direction and the opposite direction.

In addition, in one example, the tube joint locking tool includes a ratchet member formed in a set at the lower end of the first and second levers to operate in a direction in which the lower ends of the first and second levers gather together; And it may further include a handle portion respectively formed on the lower end of the first and second lever for the operation of the lever.

At this time, in one example, the ratchet member includes a fixing part formed at a lower end of any one of the first and second levers, a chain gear unit formed on the other lower end of the first and second levers to rotate, and a fixed part at one end. and a chain portion coupled to the chain gear portion in the opposite direction, a spring is provided inside one of the handle portions, and the other end of the chain portion beyond the fastening portion with the chain gear portion may be coupled to the spring.

In addition, at this time, in one example, at least one of the handle parts is a rotary handle rotatably fixed so as to be able to adjust the rotation angle around the handle part hinge shaft provided at the lower end of the lever, and at least one of the fixing part and the chain gear part. A plurality of locking grooves are formed in the rotary handle, and the rotary handle is caught in any one of the plurality of locking grooves according to the rotation of the rotary handle, and is formed to protrude on the locking piece and the locking piece for fixing the rotational state. It has a handle and is rotatable in any one or more directions of a direction toward the other handle and a direction opposite thereto.

According to one embodiment of the present invention, as a pipe joint locking tool having a replaceable tightening chuck, pipe joints of various sizes including a connecting member and a fastening member can be easily fixedly coupled to a pipe.

Even if the effect is not directly mentioned in the specification of the present invention, various characteristic effects within the understanding of those of ordinary skill in the art from the features of the configuration or various configurations included in various embodiments and modifications of the present invention It is obvious that it can be derived.

1 is a view schematically showing a state before operation of a pipe joint locking tool according to an embodiment of the present invention.
Figure 2 is a view schematically showing the operating state of the pipe joint locking tool according to an embodiment of the present invention.
Figure 3a is a view schematically showing the operating state of the pipe joint locking tool according to an embodiment of the present invention.
Figure 3b is a view schematically showing the operating state of the pipe joint locking tool according to an embodiment of the present invention.
Figure 3c is an enlarged view of the connection portion of the lever and the handle portion of Figure 3b.
4A and 4B are views schematically showing a tightening chuck of a pipe joint locking tool according to an embodiment of the present invention, respectively.
5 is a view schematically showing a fastening cross-section of a pipe joint to be fastened using a pipe joint locking tool according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention for achieving the above object will be described with reference to the accompanying drawings. In this description, the same reference numerals mean the same components, and in order to facilitate the understanding of the present invention to those of ordinary skill in the art, the secondary description may be omitted.

In the present specification, when one component forms a coupling relationship such as connection or coupling in a relationship with another component, unless there is a limitation of 'direct', not only the form of 'direct' coupling relationship, etc., but also between them As other components are related, they may exist in the form of a coupling relationship by a medium or the like. Also, terms indicating directions such as 'front' and 'rear' should be interpreted as a relative concept with respect to a reference element.

In addition, it should be noted that even if a component is expressed in a singular in the present specification, it may be used as a concept representing the entirety of a plurality of components unless interpreted contrary to or contradictory to the concept of the invention.

In addition, in this specification, the description of words such as 'comprises' and 'comprising' and terms derived therefrom indicate the possibility of addition, combination or combination of one or more other elements to the original element or element. It is not excluded, and furthermore, the description of words having the meaning of 'comprising', 'consisting' and the like and terms derived therefrom are addition, combination or combination of one or more other elements to the original elements or elements. As long as the original elements or elements do not lose their characteristics, functions and/or properties, the possibility of adding or combining one or more other elements should not be excluded.

The drawings referenced in this specification are examples for explaining an embodiment of the present invention, and the shape, size, thickness, etc. may be exaggerated or reduced for effective description of technical features. In addition, in the drawings for describing the embodiments of the present invention, some of the configuration of the embodiment may be omitted or expressed only by description to help the understanding of the entire invention or the rest of the configuration.

A tube joint locking tool according to one aspect of the present invention will be described in detail with reference to the drawings. In this case, reference numerals not described in the referenced drawings may be reference numerals in other drawings indicating the same configuration. At this time, it should be noted that the components disclosed in each drawing may be partially omitted or modified and implemented according to the modification of the embodiment, and in each drawing, even if it is an essential configuration of the invention, it may be omitted and described to help the understanding of other components. .

1 is a view schematically showing the state before the operation of the pipe joint locking tool according to an embodiment of the present invention, Figure 2 is a view schematically showing the operating state of the pipe joint locking tool according to an embodiment of the present invention Figure 3a is a view schematically showing the operating state of the pipe joint locking tool according to an embodiment of the present invention, Figure 3b is a schematic view of the operating state of the pipe joint locking tool according to an embodiment of the present invention 3c is an enlarged view of the lever and the handle portion connecting portion of FIG. 3b, and FIG. 4a is a cross-sectional view schematically showing the tightening chuck of the pipe joint locking tool according to an embodiment of the present invention, FIG. 4b is a perspective view schematically showing a tightening chuck of a pipe joint locking tool according to an embodiment of the present invention. On the other hand, Figure 5 is a view schematically showing the fastening cross section of the pipe joint to be fastened using the pipe joint locking tool according to an embodiment of the present invention.

1 to 3b, the pipe joint locking tool according to one example fixes the pipe joint 1 including the connecting member 1a and the tightening member 1b to the pipe (refer to reference numeral 5 in FIG. 5) and It is a bonding tool. At this time, the tube joint locking tool includes a first lever 10a and a second lever 10b and a tightening chuck 30 . For example, referring to FIGS. 1 to 3B , in another example, the tube joint locking tool may further include a handle portion 50 . In addition, referring to FIGS. 1 to 3B , in another example, the tube joint locking tool may further include a ratchet member 70 .

First, the pipe joint 1 fixedly coupled to the pipe 5 by the pipe joint locking tool according to an example of the present invention will be briefly reviewed with reference to FIG. 5 . At this time, the pipe joint 1 shown in FIG. 5 is illustratively shown to help the understanding of the present invention, and the scope of the present invention should not be interpreted as being limited thereto. Referring to FIG. 5 , the pipe joint 1 includes a connecting member 1a and a tightening member 1b. By inserting one end of the pipe (5) into the connecting member (1a) and pulling the fastening member (1b) toward the center of the connecting member (1a), the connecting member (1a) is tightened by the fastening member (1b) and the outside of the pipe (5) and hermetic bonding can be achieved. At this time, the two pipes 5 can be connected by inserting and connecting the pipes 5 from both sides of the connecting member 1a and pulling the tightening member 1b from both sides toward the center. For example, the pipe joint 1 may further include an internal support pipe member 1c to protect the pipe 5 from being crushed therein and to improve the tightening coupling. After inserting the internal support pipe member 1c into the pipe 5, the pipe 5 can be connected again by inserting the pipe 5 into the connecting member 1a and tightening it with the tightening member 1b. For example, the connection member 1a may include a support protrusion 111a having a protruding sidewall that can be supported by the tightening chuck 30 of the pipe joint locking tool according to an example of the present invention, and the tightening member ( 1b) has the same or similar structure as a nut or a ring shape, and the cross-sections of both ends may be supported by the tightening chuck 30 . In addition, for example, the fastening member 1b is formed so that the inner diameter is smaller in the rear than the front (in the direction of the center of the connecting member), so that the connecting member 1a is tightened by using a pipe joint locking tool according to an example of the present invention. ) can be tightened and coupled to the pipe (5).

Now, an embodiment of the present invention will be described. The first and second levers 10a and 10b rotate about the lever hinge shaft 11 . The tightening chuck 30 is formed of a pair coupled to upper ends of the first and second levers 10a and 10b. Each of the tightening chucks 30 includes a pipe joint support part 31 for seating and supporting any one of the connecting member 1a and the tightening member 1b. The tightening chuck 30 moves the tightening member 1b toward the connecting member 1a according to the operation of the first and second levers 10a and 10b, and tightens the pipe joint 1 to the pipe 5 . At this time, the selected pair of tightening chucks 30 having a support size matching the size of the pipe joint 1 among the groups having different sizes of the pipe joint support part 31 are first and second levers 10a and 10b. Replaceably coupled to the upper part of the

Hereinafter, each configuration will be described in more detail with reference to FIGS. 1 to 4B . The first and second levers 10a and 10b and the pair of tightening chucks 30 will be examined first, and then the handle 50 and the ratchet member 70 will be examined.

first and second levers 10a, 10b

1 to 3B , the first lever 10a and the second lever 10b rotate about the lever hinge shaft 11 . The structure in which the first and second levers 10a and 10b rotate about the lever hinge shaft 11 is a structure applied to a common tool, for example, pliers. In the example of the present invention, the first and second levers 10a and 10b are different in shape and structure from that of a conventional tool in that a pair of tightening chucks 30 are coupled to each other.

For example, in one example, each of the first and second levers 10a and 10b has a first chuck support 13 . The first chuck support part 13 is formed above the hinge shaft coupling portion of each of the levers 10a and 10b, that is, the lever hinge shaft 11 coupling portion. The first chuck support part 13 may have various shapes or structures. 1 to 3B , the first chuck support part 13 may have a fin structure. Although not shown, the first chuck support part 13 may have a plate-shaped protrusion structure that can be fastened to the lever fastening groove 33 of the tightening chuck 30 to be described later, but is not limited thereto. The first chuck support part 13 is fastened to the lever fastening groove 33 of the tightening chuck 30 and has a structure for supporting the tightening chuck 30 , and various modifications are possible.

Also, referring to FIGS. 1 to 3B , in one example, each of the first and second levers 10a and 10b may further include a second chuck support 14 . The second chuck support portion 14 is provided below the hinge shaft coupling portion of each lever 10a, 10b, that is, the lever hinge shaft 11 coupling portion, and supports and tightens the outer wall 32b of the tightening chuck 30 . Rotation or oscillation of the chuck 30 can be prevented. For example, referring to FIGS. 1 to 3B , the second chuck support 14 may also have a fin structure. In another embodiment, the second chuck support 14 may have various shapes or structures other than the fin structure.

For example, each of the first and second levers 10a and 10b is hollow inside, and an opening for inserting or withdrawing the tightening chuck 30 is formed at the upper end thereof, and the first and/or second chuck support parts 13, 14) may be formed in a fin structure. In this case, the first and/or second chuck support parts 13 and 14 may be replaceable.

For example, referring to FIGS. 1 to 3B , at least one of the first and second levers 10a and 10b may include a handle portion hinge shaft 15 at a lower end portion. The handle portion hinge shaft 15 allows the handle portion 50 coupled to the lower end of the levers 10a and 10b to be rotatable. 1 to 3B, the handle portion hinge shaft 15 is provided on both the first and second levers 10a and 10b, but unlike the drawings, it may be provided on only one of them.

Tightening Chuck(30)

1 to 3b, the tightening chuck 30 is made of a pair coupled to the upper end of the first and second levers (10a, 10b). Hereinafter, it should be noted that the tightening chuck 30 may be used as a term meaning all of a pair or each of a pair. The tightening chuck 30 moves the tightening member 1b toward the connecting member 1a according to the operation of the first and second levers 10a and 10b, and tightens the pipe joint 1 to the pipe 5 . Each of the tightening chucks 30 has a tube joint support 31 . The pipe joint support 31 is supported by seating the connecting member 1a to the tightening member 1b.

One of the pair of tightening chucks 30 seats the connecting member 1a on the pipe joint support 31 and the other one seats the tightening member 1b on the pipe joint support 31 to face each other. By pushing to the pipe joint (1) can be tightened to the pipe (5). For example, when the connecting member 1a and the fastening member 1b are pushed in opposite directions with a pair of tightening chucks 30, the fastening member 1b advances along the outer circumferential surface of the connecting member 1a and the connecting member ( 1a) is tightened, and the tightening connection member 1a tightens the pipe 5 inserted therein, and the pipe joint 1 may be tightenedly coupled to the pipe 5 .

At this time, the selected pair of tightening chucks 30 having a support size matching the size of the pipe joint 1 among the groups having different sizes of the pipe joint support part 31 are first and second levers 10a and 10b. Replaceably coupled to the upper part of the That is, in one example of the present invention, the tightening chuck 30 is replaceable. At this time, since the size of the pipe joint support part 31 can be changed for each tightening chuck 30, the pipe joint 1 to be connected ) by replacing and installing a tightening chuck 30 having a pipe joint support part 31 of a size that fits between the first and second levers 10a and 10b at the upper end of the pipe joint 1 having various sizes. You will be able to easily perform the connection operation.

For example, referring to FIGS. 1 to 4B , each of the tightening chucks 30 may further include a coupling support hole 34 and a coupling support member 35 . 4a shows a state in which the coupling support member 35 is inserted into the coupling support hole 34 , and FIG. 4b shows a state before the coupling support member 35 is inserted into the coupling support hole 34 . The coupling support hole 34 is a hole into which the coupling support member 35 is inserted. The coupling support member 35 is inserted into the coupling support hole 34 and supports so that the coupling state with each of the levers 10a and 10b of the tightening chuck 30 is maintained when the lever of the pipe joint locking tool is operated. For example, the coupling support member 35 may have a long pin shape or a short pin shape, but is not limited thereto. For example, the coupling support member 35 may perform elastic support. For example, when the coupling support member 35 performs elastic support, the tightening chuck 30 may be separated from each lever or formed to be easily coupled to each lever. For example, the coupling support member 35 may protrude from the coupling support hole 34 to the inside of the lever fastening groove 33 to support the first chuck support part 13 of the lever. For example, when the first chuck support part 13 has a fin structure, the coupling support member 35 may support between a side surface and a lower side of the fin structure. Alternatively, although not shown, for example, when the first chuck support part 13 has a protruding plate shape, the coupling support member 35 may adhere and support the groove formed in the plate shape, but is not limited thereto.

For example, referring to FIGS. 1 to 4B , in one example, each of the tightening chucks 30 may further include a lever fastening groove 33 . The lever fastening groove 33 may be seated and fastened to the first chuck support part 13 of the levers 10a and 10b. At this time, the coupling support hole 34 may be formed in any one of both sidewalls in the cross-section forming the lever fastening groove 33 . For example, the coupling support hole 34 may be formed in a cross-sectional inner wall forming the lever fastening groove 33 , that is, a cross-sectional wall in a direction in which the pair of tightening chucks 30 face each other, but is not limited thereto.

For example, referring to FIG. 4A , the coupling support member 35 may include a support body 351 . The support body 351 is elastically supported and a part protrudes from the coupling support hole 34 into the lever fastening groove 33 to support the first chuck support part 13 . For example, the support 351 may be a ball body 351, but is not limited thereto. For example, the support 351 may have a hemispherical shape or a shape in which a hemisphere is coupled to a cylinder.

In addition, referring to FIG. 4A , in one example, the coupling support member 35 may further include a housing 355 and an elastic body 353 . The housing 355 of the coupling support member 35 has an inner groove 355a formed therein. For example, a thread may be formed on the outside of the housing 355 . At this time, the external thread may be screwed with the thread formed on the inner circumferential surface of the coupling support hole 34 . For example, the inner groove 355a of the housing 355 may have a concave inlet shape. Accordingly, it is possible to prevent the support 351, for example, the ball body 351 from falling out from the inner groove 355a. The elastic body 353 of the coupling support member 35 is installed in the inner groove 355a to support the support body 351 , for example, the ball body 351 . For example, a spring inserted into the inner groove 355a may support the ball body 351 . An elastic material other than the spring may be used, and preferably, the tightening chuck 30 may be easily replaced as well as elastically supported using a spring.

In addition, referring to FIG. 4A , in another example, the coupling support member 35 may further include a tool groove 357 . The tool groove 357 is formed on the rear end surface of the housing 355 . At this time, the coupling support member 35 may be screwed into the coupling support hole 34 by turning the tool into the tool groove 357 .

For example, referring to FIGS. 1 to 4B , in one example, each of the tightening chucks 30 may further include a body portion 32 . The body portion 32 may be formed by connecting the upper ends of the inner wall 32a and the outer wall 32b. At this time, the coupling support hole 34 is formed in the inner wall 32a, and the lever fastening groove 33 may be formed by the inner wall 32a, the outer wall 32b, and the upper connecting portion. The outer wall 32b may be formed to be longer than the inner wall 32a. For example, the inner wall 32a is a wall in which a pair of tightening chucks 30 face each other. For example, the coupling support hole 34 formed in the inner wall 32a is formed to be positioned at a point on the lower side of the first chuck support part 13 that is seated and fastened to the lever fastening groove 33 , for example, and is attached to the coupling support member 35 . Thus, it is possible to support the lower side point of the first chuck support part 13 .

For example, referring to FIG. 4B , the pipe joint support part 31 of the tightening chuck 30 may have a two-stage groove structure integrally protruding from the upper side of the body part 32 . At this time, the step wall 31a of the two-step groove structure may support the protruding side surfaces of the connecting member 1a to the tightening member 1b. For example, it is possible to support the side surface of the vertical projection formed on the connecting member 1a or the side end surface of the nut or ring-shaped tightening member 1b. For example, the connecting member 1a has two annular protrusions spaced apart from each other in the middle, and the step wall 31a of one tightening chuck 30 supports the inner side of one of the two annular protrusions, and the connecting member The step wall 31a of the other clamping chuck 30 supports the outer end face of the nut or ring-shaped clamping member 1b fitted on the outside of the annular projection of (1a), so that the pipe joint (1) according to the operation of the lever can be tightened to the pipe (5).

For example, referring to FIGS. 1 to 3B , each of the tightening chucks 30 has a lever fastening groove 33 seated and fastened to the first chuck support part 13 of any one of the first and second levers 10a and 10b. Rotation or oscillation may be prevented by the other second chuck support part 14 . For example, the lever fastening groove 33 of each tightening chuck 30 is seated and fastened to the first chuck support part 13 of any one of the first and second levers 10a and 10b, and the outer wall of the tightening chuck 30 is seated and fastened. The 32b is supported by the second chuck support part 14 of the other lever, and rotation or oscillation can be prevented.

handle (50)

1 to 3b, the tube joint locking tool according to an example may further include a handle portion (50). The handle portion 50 is formed at lower ends of the first and second levers 10a and 10b, respectively, for lever operation. At this time, in one example, at least one of the handle portion 50 may be a rotary handle 50 rotatably fixed to the lower end of the lever. In FIGS. 1 to 3B , both the first and second levers 10a and 10b show that the rotary handle 50 is provided at the lower end, but unlike the drawing, only one of the first and second levers 10a and 10b is provided with the rotary handle 50 . At this time, the rotary handle 50 may be fixed to be able to adjust the rotation angle around the handle portion hinge shaft 15 provided at the lower end of the lever.

For example, in one example, the rotary handle 50 may include a locking piece 51 and an operation handle 53 . For example, a plurality of locking grooves in the fixing part 71 or the chain gear part 73 of the ratchet member 70 to be described later coupled to the handle part hinge shaft 15 of the lever, for example, to the handle part hinge shaft 15 . (71a, 73a) may be formed, at this time, the locking piece 51 is caught in any one of the plurality of locking grooves (71a, 73a) according to the rotation of the rotary handle 50 to fix the rotational state. The operation handle 53 is formed to protrude on the locking piece 51 . At this time, the locking state of the locking piece 51 may be released by manipulating the operation handle 53 . The rotary handle 50 is rotatable in any one or more directions of the direction toward the other handle portion 50 and the opposite direction thereof.

For example, the rotary handle 50 may further include a torsion spring 55 and a support pin 57 . The torsion spring 55 is installed on the same hinge shaft as the locking piece 51, one end is supported by the support pin 57, the other end is supported by the operation handle 53, and the locking piece 51 before the operation handle 53 is operated. It is possible to maintain the state of being caught in the locking grooves (71a, 73a).

For example, referring to FIG. 2 , a spring 59 coupled to the chain part 75 of the ratchet member 70 to be described later may be provided in the inner space of the handle part 50 .

Ratchet member (70)

1 to 3b, the pipe joint locking tool according to an example may further include a ratchet member (70). The ratchet member 70 is formed as a set at the lower ends of the first and second levers 10a and 10b so that the lower ends of the first and second levers 10a and 10b are operated in a direction in which they are gathered. For example, at this time, the lower end portions of the first and second levers 10a and 10b on which the ratchet member 70 is formed may be provided with a handle portion 50 formed for lever operation.

For example, referring to FIGS. 1 to 3B , the ratchet member 70 may include a fixing part 71 , a chain gear part 73 , and a chain part 75 . The fixing part 71 is formed at the lower end of any one of the first and second levers 10a and 10b. The fixing part 71 is coupled to one end of the chain part 75 . For example, the fixing part 71 may be coupled to the handle part hinge shaft 15 formed at the lower end of the lever, and one side may be coupled to the body part 32 of the lever so that it does not rotate. For example, in one example, a plurality of locking grooves 71a may be formed in the fixing part 71 . For example, referring to FIG. , when the fixing part 71 is coupled to the handle part hinge shaft 15 , a plurality of locking grooves 71a are formed around the lower fixing part 71 of the handle part hinge shaft 15 . can be The locking piece 51 of the rotary handle 50 is caught in any one of the plurality of locking grooves 71a of the fixing part 71 , and the rotation angle of the rotary handle 50 can be adjusted.

The chain gear part 73 is formed at the lower end of the first and second levers 10a and 10b where the fixing part 71 is not formed. For example, the chain gear part 73 may be hinge-rotatably coupled to the handle part hinge shaft 15 formed at the lower end of the lever. For example, the chain gear unit 73 may rotate and move the chain unit 75 in one direction. At this time, the meaning of moving in one direction means that the chain gear part 73 is fixed after being rotated in one direction by a lever operation so as not to be released in the reverse direction by itself. For example, although not shown, the one-way rotation state of the chain gear unit 73 may be released with the ratchet lever to enable reverse rotation.

For example, in another example, the chain gear unit 73 may further include a gear having a plurality of engaging grooves 73a in addition to the chain gear to which the chain unit 75 is fastened. The locking piece 51 of the rotary handle 50 is caught in any one of the plurality of locking grooves 73a of the chain gear unit 73 , and the rotation angle of the rotary handle 50 can be adjusted.

In one example, at least one of the fixing part 71 and the chain gear part 73 may be provided with a plurality of locking grooves 71a and 73a in which the locking pieces 51 of the rotary handle 50 are caught.

The chain part 75 has one end coupled to the fixing part 71 and coupled to the chain gear part 73 in the opposite direction. For example, the other end of the chain portion 75 beyond the fastening portion with the chain gear portion 73 may be coupled to a spring 59 provided in one of the handle portions 50 . 2 shows the spring 59 provided in the handle portion 50, but the state in which the other end of the chain portion 75 is coupled to the spring is omitted.

In the above, the above-described embodiments and the accompanying drawings are illustratively described to help those of ordinary skill in the art for the present invention, rather than limiting the scope of the present invention. At this time, various modified examples may be obviously implemented according to various combinations of the above-described components by those of ordinary skill in the art. That is, various embodiments of the present invention may be implemented in various modified forms according to various combinations of the above-described components without departing from the essential characteristics of the present invention. Accordingly, the scope of the present invention should be interpreted according to the invention described in the claims, and includes various modifications, alternatives, and equivalent embodiments by those skilled in the art as well as the above-described embodiments.

1: pipe joint 1a: connecting member
1b: fastening member 10a: first lever
10b: second lever 11: lever hinge shaft
13: first chuck support part 14: second chuck support part
15: handle part hinge shaft 30: tightening chuck
31: pipe joint support 31a: step wall
32: body portion 32a: inner wall
32b: outer wall 33: lever fastening groove
34: coupling support hole 35: coupling support member
351: support or ball body 353: elastic body
355: housing 355a: inner groove
357: tool groove 50: handle or rotating handle
51: catch piece 53: control handle
70: ratchet member 71: fixed part
71a, 73a: locking groove 73: chain gear part
75: chain part

Claims (10)

A pipe joint locking tool for fixedly coupling a pipe joint including a connecting member and a tightening member with a pipe, the pipe joint locking tool comprising:
a first lever and a second lever rotating about a lever hinge axis; and
Consists of a pair coupled to the upper end of the first and second levers, each having a pipe joint support for seating and supporting any one of the connecting member and the tightening member, and the first and second levers are operated and a tightening chuck for moving the tightening member toward the connecting member and tightening the pipe joint to the pipe,
A selected pair of the tightening chucks having a support size matching the size of the tube joint from among the groups having different sizes of the tube joint support portion is substituted and coupled to upper ends of the first and second levers;
The tightening chuck further includes a coupling support member inserted into the coupling support hole and the coupling support hole, respectively, and supporting the coupling state to be maintained with each lever of the tightening chuck when the lever of the pipe joint locking tool is operated,
Each of the first and second levers is provided with a first chuck support portion formed above the hinge shaft coupling portion,
Each of the tightening chucks further includes a lever fastening groove that is seated and fastened to the first chuck support part,
The coupling support hole is formed in any one of both sidewalls in the cross-section forming the lever fastening groove,
The coupling support member is elastically supported and a part protrudes from the coupling support hole into the lever fastening groove to support the first chuck support part.
delete delete In claim 1,
The coupling support member further includes a housing having an inner groove and a screw thread formed on the outside, an elastic body installed in the inner groove to support the ball body as the support, and a tool groove formed in the rear end surface of the housing,
The coupling support member is a pipe joint locking tool, characterized in that it is screwed into the coupling support hole as the tool is inserted into the tool groove and turned.
In claim 1,
The tightening chuck further includes a body portion in which the upper end of the inner wall in which the coupling support hole is formed and the outer wall longer than the inner wall are connected to each other to form the lever fastening groove,
The pipe joint support part is a two-stage groove structure integrally protruding from the upper side of the body part, and the stepped wall of the two-stage groove structure supports the protruding side of the connecting member or the tightening member,
Each of the first and second levers further includes a second chuck support part that supports the outer wall of the tightening chuck at the lower side of the hinge shaft coupling portion and prevents rotation or oscillation of the tightening chuck,
The first and second chuck support parts have a fin structure,
The tightening chuck is characterized in that the lever fastening groove is seated and fastened to the first chuck support part of any one of the first and second levers, and rotation or oscillation is prevented by the other second chuck support part. Pipe joint locking tool.
In any one of claims 1, 4, 5,
Further comprising a handle portion respectively formed on the lower end of the first and second lever for lever operation,
At least one of the handle parts is a rotary handle rotatably fixed to the lower end of the lever,
The rotary handle is a pipe joint locking tool, characterized in that the rotation angle is adjustable about the hinge shaft of the handle provided at the lower end of the lever.
In claim 6,
A plurality of locking grooves are formed in the hinge shaft portion of the handle,
The rotary handle is hooked on any one of the plurality of locking grooves according to the rotation of the rotary knob and is formed to protrude on the locking piece and the locking piece for fixing the rotational state and is provided with an operation handle for releasing the locking state of the locking piece, , A pipe joint locking tool, characterized in that it is rotatable in any one or more directions of the other handle direction and the opposite direction.
In any one of claims 1, 4, 5,
a ratchet member formed in a set at the lower ends of the first and second levers to operate in a direction in which the lower ends of the first and second levers gather together; and
Pipe joint locking tool, characterized in that it further comprises a handle portion respectively formed on the lower end of the first and second levers for lever operation.
In claim 8,
The ratchet member includes a fixing part formed at a lower end of any one of the first and second levers, a chain gear unit formed on the other lower end of the first and second levers and rotating, and one end is coupled to the fixed part, and and a chain portion coupled to the chain gear portion in the opposite direction;
A spring is provided inside one of the handle parts,
A pipe joint locking tool, characterized in that the other end of the chain portion beyond the fastening portion with the chain gear portion is coupled to the spring.
In claim 9,
At least one of the handle portions is a rotary handle fixed rotatably so as to be able to adjust the rotation angle around the handle portion hinge shaft provided at the lower end of the lever,
A plurality of locking grooves are formed in at least one of the fixing part and the chain gear part,
The rotary handle is hooked on any one of the plurality of locking grooves according to the rotation of the rotary knob and is formed to protrude on the locking piece and the locking piece for fixing the rotational state and is provided with an operation handle for releasing the locking state of the locking piece, , A pipe joint locking tool, characterized in that it is rotatable in any one or more directions of the other handle direction and the opposite direction.

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