KR200491617Y1 - Connecting device for piping works - Google Patents

Abstract

The present invention relates to a crimping fastener for piping. In the crimping fastener for piping according to the present invention, a first fastener and a second fastener are respectively formed at both ends of the body part, and the inner periphery is a part of the rounded shape of the pipe connecting part. The first pressing member corresponding to the first pressing member is provided, the elastic pressing member insertion hole of the first insertion hole and the second insertion hole toward the first fastener and the second fastener from the top of the body portion is formed , One end is provided with a third fastener that is rotatably coupled with the first fastener, and a second pressing part having one end connected to one end of the first pressing part is formed on the inner periphery, and the first tightening jaw is provided at the other end. A second clamp member is formed, and a fourth fastener that is rotatably coupled to the second fastener is provided at one end, and the first pressing part and the second pressing part are provided at an inner periphery. A third pressing member is formed at each end to which the other end is connected to form a ring shape as a whole, a third clamp member having a second tightening jaw formed at the other end, and inserted into the first insertion hole to fasten the third It includes a first elastic pressing member that provides a predetermined elastic support force to the sphere, and a second elastic pressing member that is inserted into the second insertion hole and provides a predetermined elastic support force to the fourth fastener.

Description

Crimping fastener for piping {CONNECTING DEVICE FOR PIPING WORKS}

The present invention relates to a crimping fastener for piping, and more particularly, to a crimping fastener for piping used for a work of interconnecting two adjacent pipe ends by crimping.

Among the piping work methods for connecting one end of the pipes of a general pipe to each other, a crimp fastening method is used, which is used to quickly and easily connect and fix the joints, which are the connecting parts of the pipes, by using a crimp fastener.

The crimping fastener is formed to have a structure that can be operated and operated to enable a crimping and tightening operation in a direction to close the circumference while surrounding the circumference of the pipe joint, and plays an important role in determining the fastening quality in the crimping and tightening of pipe bodies. do.

As a crimp fastener used for such a crimp fastening operation, there is a crimp fastener for a pipe having a three-part structure of Utility Model Registration No. 20-0486897, which is a patent document 1 of the following prior art documents.

The registration design consists of a three-stage clamp structure on both sides and the center where power is directly transmitted by the tool, and at the same time, each clamp connection part is alternately projected to form an alternatingly distributed force applied by the tool. A uniform force is applied to the connection portion, so that the pipe can be firmly connected, as well as the breakage of the clamp can be prevented, and it is configured to be relatively easy to manufacture and light in weight because it is manufactured in three stages.

However, although the registration design suggests that a balanced distribution of force is possible through a three-stage clamp structure, since the metal strength of the first to third clamp members manufactured by the casting method is weak, it is able to withstand the strength of the pressing operation therein. There is a problem in that the structure is complicated and requires a lot of time and cost to assemble, because the pressurizing member of a metal material having strength must be used separately. In addition, in order to perform a connection operation through pressurization to the piping, the second clamp member and the third clamp member are switched to the closed state in a state where the second clamp member and the third clamp member are opened to each other by hand. Since the operator must hold the crimping fastener continuously while crimping is performed by the pressurizing tool, it is inconvenient to fasten, and it is difficult to perform simultaneously or sequentially through crimping of a plurality of pipe joints. There is a problem that a possibility of occurrence of a safety accident exists.

In order to solve the problems of closing and opening the clamp member manually and continuously gripping, “Pipe crimping fastener of Patent Registration No. 10-1475375” of Patent Document 2 was proposed.

In the case of the registered invention, a plate spring is inserted into the grooves on the outer circumferential surface of the body member corresponding to the clamp member, so that the body assembly and the insert assembly are elastically retracted, so that the position can be fixed before pressing by fastening to the piping connection. By doing so, the operator did not need to hold the pipe crimping fastener separately during the pressure fastening operation.

However, in the case of the registered invention of Patent Document 2, if the size of the pipe crimping fastener is increased to connect a pipe having a large diameter, the size and strength of the leaf spring must be increased to fix the position around the pipe connection portion of the body assembly. do. However, when the elastic force due to the increase in size and strength of the leaf spring increases, there is a problem in that the operator does not smoothly open and fix the body assembly around the pipe connection part, or if the elastic force is greater than a predetermined elastic force, it is impossible to manually open the body assembly.

There have been attempts to solve the problems associated with the adoption of the leaf spring through the structure of employing the elastic fastener 12 according to the patent document 3, “patent registration 10-1598204 piping crimping fastener”.

Registered invention of the patent document 3, as shown in Figures 7 and 8 of the patent document, the elastic fastener 12 is provided with an elastic sphere (H), the elastic sphere (H) is two tightening connector ( Insertion grooves (H1) formed on one side of the fasteners (4) are provided in a built-in type at the point adjacent to the connecting pins (B) connecting 2, 4) to each other. Compressed coil spring fitted on the side. Therefore, when the two tightening connectors (2, 4) are operated in a direction in which they are extended to each other, the compression coil spring length may be elastically retracted, and the tightening connectors (2, 4) may be set to generate elastic repulsive force in the direction in which they are folded into each other. The problem was to solve the problems of the leaf spring.

However, in the registered invention of Patent Document 3, since the compression coil spring is inserted in the insertion groove in a curved direction rather than in a straight direction, uniform elastic repulsive force is not easily transmitted, and over time, shape deformation due to bending It occurs there is a problem that the uniform elastic repulsion force is further inhibited. In addition, there is only a description that the compression coil spring is inserted into the insertion groove, and a person having ordinary skill in the art can insert the compression coil spring into the insertion groove through the structure shown in FIGS. 7 to 8. In addition to not being able to confirm, the insertion structure confirmed through the urban structure is understood to be required to reconnect the connection pin after inserting the compression coil spring through the insertion groove exposed before or after the connection of the connection pin (B). There is a very inconvenient problem in the initial insertion or replacement of the spring. In addition, an additional problem occurs in that the side of the compression coil spring causes friction with the connecting pin, resulting in deterioration of elastic repulsive force or deformation or breakage.

KR 20-0486897 Y1 KR 10-1475375 B1 KR 10-1598204 B1

The problem to be solved by the present invention is to solve the above problems, and regardless of the size of the piping, the operator can easily open or close the crimping fastener by manually pressing the crimping fastener around the pipe connection before and after using the pressurized tool. In addition, it is possible to provide a crimping fastener for piping that is safe and has a high efficiency in crimping the piping connection because the operator does not need to grip the crimping fastener during the pressing tool operation.

In addition, another technical problem to be solved by the present invention is to secure the uniformity of the elastic repulsive force of the compression coil spring that provides proper support to facilitate the fastening and unfixing operation around the pipe connection portion of the crimping fastener and shape such as bending deformation. In addition to preventing deformation, it is to provide a crimp fastener for piping that is easy to insert and replace a compression coil spring.

In the crimping fastener for piping according to the present invention, the crimping fastener for piping according to the present invention has first fasteners and second fasteners respectively formed at both ends of the body part, and the inner periphery corresponds to a part of the rounded shape of the pipe connecting part. The first pressing member is provided, the first clamp member, the first clamp member is formed through the elastic pressing member insertion hole of the first insertion hole and the second insertion hole toward the first fastener and the second fastener from the top of the body portion, at one end A third fastener that is rotatably coupled with the first fastener is provided, and a second pressing part having one end connected to one end of the first pressing part is formed on an inner periphery, and a first tightening jaw is formed at the other end. A second clamp member, one end is provided with a fourth fastener that is rotatably coupled to the second fastener, the inner periphery of each of the first pressing portion and the second pressing portion One end and the other end are connected to form a third pressing portion forming a ring shape as a whole, a third clamp member having a second tightening jaw formed at the other end, and inserted into the first insertion hole to be provided in the third fastener It includes a first elastic pressing member providing an elastic supporting force, and a second elastic pressing member inserted into the second insertion hole to provide a predetermined elastic supporting force to the fourth fastener.

Each of the first fastener and the second fastener is a right and left isomorphic shape that is symmetrically spaced apart from each other with a predetermined space so that the third fastener and the fourth fastener can be alternately inserted therein, respectively. It has a round shape and may be provided with two protrusions having a hinge pin receiving hole formed therein.

The third fastener and the fourth fastener are alternately inserted into the first fastener and the second fastener, respectively, and a hinge pin receiving hole corresponding to the inside is formed to form the first fastener and the first fastener. 2 The outer circumferential surface hinged to each of the fasteners may be provided with one rounded protrusion.

Each of the first pressing portion, the second pressing portion, and the third pressing portion may be formed such that pressing projections or pressing grooves are respectively corresponded to the inner periphery.

The first elastic pressing member and the second elastic pressing member may include ball flanges, coil springs, and tanned bolts sequentially inserted into the first insertion hole and the second insertion hole.

As described above, according to the crimping fastener for piping according to the present invention, regardless of the size of the pipe, the operator can easily open and fasten the crimping fastener for the pipe around the pipe connection part before and after the use of the pressurized tool by appropriate force. Not only can it be released, there is no advantage that the operator does not need to grip the crimping fastener during the pressing tool operation, and has a favorable effect of being excellent in the efficiency of crimping the pipe connection.

In addition, it is possible to secure the uniformity of elastic repulsive force of the compression coil spring that provides proper support so as to facilitate fastening and unfastening the circumference of the pipe connection portion of the crimp fastener according to the present invention and prevent shape deformation such as bending deformation. In addition, there is an advantageous effect of easy insertion and replacement of the compression coil spring.

1 and 2 are each a closed state perspective view and a partially cut perspective view of a crimping fastener for piping according to an embodiment of the present invention,
3 is an exploded perspective view of the elastic support member for the crimping fastener for piping of FIG. 2,
FIG. 4 is a longitudinal sectional view taken along line A-A 'in FIG. 1;
5 is an open state perspective view of a crimping fastener for piping according to an embodiment of the present invention, and
FIG. 6 is a longitudinal cross-sectional view taken along line B-B 'in FIG. 5.

Details of other embodiments are included in the detailed description and drawings.

Advantages and features of the present invention, and methods for achieving them will be clarified through embodiments described below in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only this embodiment allows the disclosure of the present invention to be complete, and has ordinary knowledge in the technical field to which the present invention belongs. It is provided to fully inform the person of the scope of the invention, and the invention is only defined by the scope of the claims.

The same reference numerals refer to the same components throughout the specification. Embodiments described in the present specification will be described with reference to ideal perspective views and cross-sectional views of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with reference to Figures 1 to 6 for the crimping fastener for piping according to an embodiment of the present invention.

1 and 2 are each a closed state perspective view and a partial cut-away perspective view of a crimping fastener for piping according to an embodiment of the present invention, FIG. 3 is an exploded perspective view of the elastic support member for the crimping fastener for FIG. 2, and FIG. 4 is FIG. 1. Longitudinal cross-sectional view taken along line A-A ', FIG. 5 is a perspective view of an open state of a crimping fastener for piping according to an embodiment of the present invention, and FIG. 6 is shown along line B-B' in FIG. It is a longitudinal section.

1 to 6, the first clamp member 10, the second clamp member 20, the third clamp member 30, the first elastic pressurization for a pipe crimping fastener according to an embodiment of the present invention It includes a member 40 and a second elastic pressing member 45.

 The first clamp member 10 is located in the center of the crimping fastener for piping having an entire three-part structure, and the second clamp member 20 and the third clamp member 30, which will be described later at both ends, are opened and closed according to each other. It is deformably connected in a ring shape.

The first clamp member 10 has a first fastener 11 and a second fastener 12 respectively formed at both ends of the body portion, and the inner periphery has a first pressure corresponding to the rounded shape of the pipe connection portion. A part 14 is provided, and the first inserting hole 16 and the second inserting hole penetrating the body part diagonally toward the first fastener 11 and the second fastener 12 from the upper part of the body part ( An elastic pressing member insertion hole 15 made of 17) is formed.

The first fastener 11 is formed to protrude in one direction of one end of the first clamp member 10, and the second fastener 12 is formed to protrude in the other surface direction of the other end of the first clamp member 10. At this time, the first fastener 11 is rounded in a right and left isomorphic form, which is symmetrically spaced apart from each other with a predetermined space so that the third fastener 21 to be described later can be alternately rotated therein. The hinge pin (not shown) is provided with two protrusions in which the receiving hole h is formed. Likewise, the second fastener 12 is rounded in the right and left homogeneous form, which is symmetrically spaced apart from each other with a predetermined space so that the fourth fastener 31 to be described later can be alternately rotated therein. The hinge pin (not shown) is provided with two protrusions in which the receiving hole h is formed.

The second clamp member 20 has an arc shape as a whole, and is provided with a third fastener 21 which is hinged to the first fastener 11 at one end so as to be rotatable, and the inner periphery is rotated for compression. In the closing operation by the second pressing portion 24 is formed, which is connected to one end of the first pressing portion 14, and the first clamping jaw 23 is protruded from the other end.

The third fastener 21 is alternately inserted into the first fastener 11, and likewise, a hinge pin (not shown) receiving hole h is formed therein to the first fastener 11, The outer circumferential surface, which is hinged so as to be able to rotate, is provided with one rounded protrusion.

The third clamp member 30 also has an arc shape as a whole, and is provided with a fourth fastener 31 that is hinged to the second fastener 12 at one end so as to be rotatable, and the inner periphery is closed for compression. The first pressing portion 14 and the second pressing portion 24 are connected to one end and the other end by rotation, and a third pressing portion 34 is formed to form a ring shape as a whole. 2 The tightening jaw 33 is protruding.

The first pressing portion 14, the second pressing portion 24 and the third pressing portion 34 are not shown in the drawings, but separate pressure projections or pressurizations are provided to secure the convenience and water tightness of the pressurization of the pipe connection portion on the inner periphery. Of course, the grooves may be provided to be mutually compatible.

The fourth fastener 31 is alternately inserted into the second fastener 21, and likewise, a hinge pin (not shown) receiving hole h is formed therein to the second fastener 21. The outer circumferential surface, which is hinged so as to be able to rotate, is provided with one rounded protrusion.

The third clamp member 30 is located on the right side of the first clamp member 10 described above in the drawings attached to the specification of the present invention, and is formed in the same manner as the second clamp member 20 described above. 2 The third clamping member 30 is turned over by changing the position of the clamping member 20 and the position of the clamping member 20, so that the first clamping member 10 may be hinged to the left side, that is, the first fastener 11 side.

Meanwhile, the second tightening jaw 33 serves to be pressed together by the pressing tool together with the first tightening jaw 23.

The first elastic pressing member 40 is composed of a first ball flange 41, a first coil spring 42 and a first tanned bolt 43 that are sequentially inserted into the first insertion hole 16. It is.

On the other hand, the second elastic pressing member 45 is composed of a second ball flange 46, a second coil spring 47 and a second tanned bolt 48 that are sequentially inserted into the second insertion hole 17. .

The first tanned bolt 43 and the second tanned bolt 44 are respectively inserted into a predetermined position inside the first insertion hole 16 and the second insertion hole 17 in a threaded rotation coupling method. To this end, although not shown in the drawings, at least a portion of the first insertion hole 16 and the second insertion hole 17 are provided with threads.

The first ball flange 41 and the second ball flange 42 are first coils, each of which is supported by a first tanned bolt 43 and a second tanned bolt 48, respectively, in a rounded bullet shape so that the sharpened portions are blunt. By using the compressive elastic force of the spring 42 and the second coil spring 47, the rounded protrusions of the third fastener 21 and the fourth fastener 31 are pressed with an appropriate force.

The pressing force applied at this time is the strength of the first coil spring 42 and the second coil spring 47 and the first insertion hole 16 and the second of the first tanned bolt 43 and the second tanned bolt 44. The inside of the insertion hole 17 can be freely adjusted by the insertion depth to each predetermined position.

Therefore, according to the crimping fastener for piping according to the present invention, the use of a pressing tool for crimping the piping connection portion through free adjustment of the pressing force using the first elastic pressing member 40 and the second elastic pressing member 50 In order for the operator to easily open the second clamp member 20 and the third clamp member 30 of the crimping fastener around the pipe connection regardless of the size of the piping, manually place the pipe connection portion with appropriate force, and then re-close the pipe A fixed state can be maintained around the connecting portion. Therefore, it is very easy to fix and unfasten the fastening of the crimping fastener for piping, and there is an advantageous effect in that the worker is not required to grip the crimping fastener during a crimping operation using a pressing tool, and is safe and has excellent crimping efficiency.

In addition, according to the crimping fastener for piping according to the present invention, the coil springs 42 and 47 that provide proper support to facilitate the fixing and releasing operation around the pipe connection portion are provided with elastic members in the longitudinal direction without bending (15) Since it is easily inserted and fixed in), it ensures uniformity of elastic repulsion and prevents shape deformation such as bending deformation, and has an advantageous effect of very easy insertion and replacement of the coil spring.

10: first clamp member 11: first fastener
12: second fastener 14: first pressing portion
15: elastic pressing member insertion hole 16: first insertion hole
17: second insertion hole
20: second clamp member 21: third fastener
23: first tightening jaw 24: second pressing portion
30: 3rd clamp member 31: 4th fastener
33: second tightening jaw 34: third pressing portion
40: first elastic pressing member 41: first ball flange
42: first coil spring 43: first tanned bolt
45: second elastic pressing member 46: second ball flange
47: second coil spring 48: second tanned bolt

Claims (5)

First fasteners and second fasteners are respectively formed at both ends of the body portion, and a first pressurizing portion corresponding to a portion of the rounded shape of the pipe connection portion is provided at the inner periphery, and the first fastener and the upper portion of the body portion are provided. A first clamp member having a first insertion hole and a second insertion hole, each of which has a thread formed in at least an upper portion toward the second fastener, through which an elastic pressing member insertion hole is formed,
A third fastener that is rotatably coupled with the first fastener is provided at one end, and a second pressing part having one end connected to one end of the first pressing part is formed at an inner periphery, and a first tightening jaw is formed at the other end. Second clamp member,
A fourth fastener that is rotatably coupled to the second fastener is provided at one end, and one end and the other end are connected to each end of the first pressing part and the second pressing part to form an overall ring shape on the inner periphery. 3 A third clamp member having a pressing portion formed thereon and a second clamping jaw formed at the other end,
A first elastic pressing member inserted into the first insertion hole to provide a predetermined elastic support force to the third fastener, and
A second elastic pressing member inserted into the second insertion hole to provide a predetermined elastic support force to the fourth fastener
It includes,
The first fastener and the second fastener
Each of the third and fourth fasteners is alternately inserted into the inside to form a left and right isomorphic shape spaced apart from each other and symmetrically spaced so as to be rotated with each other. Hinged pin receiving holes are formed inside. It consists of two projections,
The third fastener and the fourth fastener
Each of the first fastener and the second fastener is alternately inserted into the inside and a hinge pin accommodating hole corresponding to the inside is formed, so that the hinge fastening is possible with respect to the first fastener and the second fastener, respectively. The outer circumferential surface to be made is provided with one rounded protrusion,
The first elastic pressing member
A first ball flange, a first coil spring, and a first tanned bolt sequentially inserted into the first insertion hole
It includes,
The second elastic pressing member
A second ball flange, a second coil spring, and a second tanned bolt sequentially inserted into the second insertion hole
It includes,
The first tanning bolt and the second tanning bolt are respectively inserted into a predetermined position inside the first insertion hole and the second insertion hole by a threaded rotation coupling method,
The first ball flange and the second ball flange have a rounded shape with a sharpened portion, respectively, and the compressive elastic force of the first coil spring and the second coil spring, one end of which is supported by the first and second bolts. Each of the third fasteners and the fourth fasteners is pressurized with the rounded protrusions, respectively, and the pressing force applied at this time is the strength of the first and second coil springs and the second coil spring. 1 The inside of the first insertion hole and the second insertion hole of the two-headed bolt and the second headless bolt can be freely adjusted by the insertion depth to a predetermined position, respectively.
Crimp fastener for piping. delete delete In claim 1,
The first pressing portion, the second pressing portion and the third pressing portion
Pressing protrusions or pressing grooves on the inner periphery correspond to each other
Formed
Crimp fastener for piping. delete

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