WO2015190701A1

WO2015190701A1 - Compression fastening device for pipe

Info

Publication number: WO2015190701A1
Application number: PCT/KR2015/004314
Authority: WO
Inventors: 조경호
Original assignee: 주식회사 서원기술
Priority date: 2014-06-09
Filing date: 2015-04-29
Publication date: 2015-12-17
Also published as: CN106255560B; US20170225218A1; CN106255560A; KR101575896B1

Abstract

Disclosed is a compression fastening device for a pipe. The compression fastening device for a pipe comprises: a tightening coupling part which has connection members connected in a manner of surrounding the circumference of a connection part of a pipe body, and which is formed so as to be capable of generating a tightening force for compression fastening the circumference of the connection part of the pipe body while operating in a state where the gap of both ends of the tightening coupling part becomes narrowed by a tightening tool; a tightening compression part which has a flow-type compression member and a fixed-type compression member formed so as to be capable of compressing the circumference of the connection part of the pipe body while being pressed in a contact state by the tightening force of the tightening coupling part; and a contact guide part which is formed so as to be capable of guiding the contact state between the tightening coupling part and the tightening compression part so that the gap of both ends of the tightening coupling part can be manipulated by the tightening tool in a set state where the gap of both ends has been narrowed.

Description

Crimping fastener for piping

The present invention relates to a crimp fastener for piping.

Among the working methods of connecting the pipes to each other there is a crimping (connection) method of connecting the joints of the pipes simply and quickly by using a tightening compression force.

A crimping fastener is used for crimping and fastening, and most of these crimping fasteners are secured by a separate tightening tool (hydraulic device or power transmission device) so that the tightening force is generated in the direction that the diameter of the pipe is retracted while it is wrapped around the joint of the pipe. It is made of a structure that generates a tightening force while operating in a state in which both ends are narrowed.

A crimp fastener used for such a crimp fastening operation is a pipe crimp fastening device of Patent Registration No. 10-0762293. ".

However, the pipe compression fastening device of the Patent Registration No. 10-0762293, when the pipe joint is set in a state to enable the compression fastening, so that the two reference block intervals as close as possible to be easily operated by the tightening tool. Since it does not have a structure to be integrated there is a disadvantage that the operability and compatibility with the tightening tool is not good.

In particular, if the corresponding compatibility with the tightening tool is not secured, for example, when a large gap between two reference blocks occurs, there is a need to additionally have a tightening tool having a size and structure that can accommodate the gap. .

The present invention has been made to solve the conventional problems as described above,

SUMMARY OF THE INVENTION An object of the present invention is to provide a crimping fastener for pipes formed to have a structure that can further enhance the operability and compatibility with a tightening tool during a crimping fastening operation for pipe piping.

In order to realize the object of the present invention as described above,

Tightening formed to connect the connector in the form that can be wrapped around the joint of the pipe, and is formed to generate a tightening force for pressing the circumference of the pipe joint while operating in a state that the gap between both ends by a tightening tool Connection;

A tightening crimping unit having a fluidized crimping port and a fixed crimping port which are pressed in a contact state by the tightening force of the tightening connector and thus can be crimped around the pipe fitting portion;

A contact guide part configured to guide a contact state between the tightening connection part and the tightening compression part so as to be operated by the tightening tool in a setting state where both ends of the tightening connection part are narrowed;

Provides a crimping fastener for piping comprising a.

In the present invention as described above, in the state of setting the tightening connection to wrap around the pipe joints, so that the gap between both ends of the tightening connection is operated by a separate tightening tool to tighten the contact by the tightening force generated at this time The pipe joint can be easily connected in a crimped state by pressing the part (compression port) to perform a crimping operation.

In addition, the present invention may provide a structure that can be smoothly operated by the tightening tool in a state in which the gap between both ends of the tightening connecting portion is narrowed as much as possible with the contact guide portion.

In particular, according to the structure and action of such a contact guide part, for example, during the crimping operation of a large diameter pipe joint, the tightening tool can be operated in a state of setting the tightening tool smoothly by narrowing the gap between both ends of the tightening connection part as much as possible. The operability and compatibility can be further improved.

1 is a view schematically showing the overall structure of the crimping fasteners for piping according to an embodiment of the present invention.

Figure 2 is a view of the open state of the crimping fasteners for piping according to an embodiment of the present invention.

Figure 3 is a view of a fastening state of the crimping fasteners for piping according to an embodiment of the present invention.

4 is a view showing an installation state of the elastic member according to an embodiment of the present invention.

5 is a view showing a structure of forming a guide hole according to an embodiment of the present invention.

6 is a view showing the configuration of the latch according to an embodiment of the present invention.

7 is a view showing an operating state of the latch according to an embodiment of the present invention.

8 is a view showing an operating state of the latch in the other direction according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Embodiments of the present invention are described to those skilled in the art within the scope of the present invention.

Therefore, since the embodiments of the present invention can be modified in various other forms, the claims of the present invention are not limited to the embodiments described below.

1 is a view schematically showing the overall structure of the crimping fasteners for piping according to an embodiment of the present invention, Figures 2 to 8 are views for explaining the detailed structure and operation, reference numeral 2 denotes a tightening connection. And, 4 denotes a tightening crimping portion.

1 to 4, the tightening connection part 2 and the tightening crimping part 4 have a compression fastening operation by a tightening operation in which both ends are narrowed in a state in which the pipe P is wrapped around the joint P1. For example, it may be formed to have a chain type connection structure.

The tightening connection part 2 is provided with a plurality of connector (A), the connector (A) is formed of a connection structure that can form a circular shape to correspond to the circumference of the joint (P1) of the tubular body (P).

That is, the tightening connection portion 2 is, for example, as shown in Figs. 1 and 2, the three connector (A) end is connected to the hinge coupling is rotated around the hinge coupling point pipe (P) joint (P1) It can be set to have a connection structure that can be manipulated in a state that can be wrapped around or separated.

The connector (A) is provided with a contact surface (A1), respectively, and is arranged in a connection state that can be pushed by the contact force of the contact surface (A1) so as to enable the compression operation of the tightening crimping portion (4) to be described later during the tightening operation.

The fastening connection part 2 is formed with a locking portion (A2) at both ends as shown in Figure 1 so that the tightening operation in a state that the gap between both ends is narrowed by a separate tightening tool (M).

The locking portion A2 may be provided, for example, in the form of a groove (or protrusion) so that the tightening tool M may be set in a locked state to enable the tightening operation.

In addition, the tightening tool (M) is a drive structure that can be operated in a state that can generate a power by a normal hydraulic or electric method, as already cut, to narrow the gap between both ends (locking portion) of the tightening connecting portion (2) It is formed to have.

The tightening connection portion 2 is, as shown in Figure 3, the interval between the engaging portion (A2) of both ends by the tightening tool (M) in a state arranged to wrap around the joint P1 of the tubular body (P) While being operated in a narrowed state, the generation of a tightening force for pressing and fastening around the joint P1 of the tubular body P may be enabled.

The tightening crimping portion 4 is formed to be pressed by the contact force of the connector (A) during the tightening operation of the tightening connecting portion 2 to compress the circumference of the joint P1 of the tubular body (P).

The tightening crimping portion 4 has a plurality of crimping holes, and when installed to correspond to the tightening connecting portion 2, a flow-type crimping structure and a non-flowable structure that can flow along the periphery of the joint P1 of the tubular body P ) Can be installed to have a flow crimp structure.

The tightening crimping portion 4 is, for example, between the flow-type crimping hole B1 disposed to correspond to both ends of the tightening connecting portion 2 as shown in FIGS. 1 and 2, and both ends of the tightening connecting portion 2. It may be made to include a fixed crimp (B2) disposed in.

The flow crimp (B1) is coupled to the slot groove (C1) and the pin (C2) coupling to the connector (A) side of both ends of the tightening connection portion 2 slides around the pipe (P) joint (P1) The operation may be provided in a state where it can be operated.

The fixed crimp (B2) is fastened and fastened with a fastening member such as a bolt or a pin on the side of the connector (A) between both ends of the tightening connector (2) does not move along the circumference of the pipe (P) joint (P1) May be provided in a fixed state.

The flow crimp (B1) and the fixed crimp (B2) is provided with a crimp surface (B3), the crimp surface (B3) when the tightening connection portion 2 is operated in a tightening state (P) joint (P) P1) is formed in an arrangement that can be crimped in a state of forming a circular connecting shape corresponding to the periphery.

That is, the tightening crimping portion (4), as shown in Figure 3 by the contact surface (A1) of the connector (A) during the tightening operation of the tightening connector (2) by the flow-type crimp (B1) and fixed crimp (B2) ) Is pressed and the pressing operation in the direction of reducing the diameter of the joint P1 of the tubular body P to the pressing surface (B3) can be operated.

On the other hand, the crimping fastener for piping according to an embodiment of the present invention, comprises a contact guide portion (6).

The contact guide part 6 is formed to have a structure capable of guiding a contact state between the tightening connection part 2 and the tightening crimping part 4.

In particular, when the contact guide portion 6 arranges the tightening connection portion 2 so as to surround the circumference of the joint P1 of the tubular body P, the gap between both ends of the tightening connection portion 2 is further narrowed. It is formed to guide in a contact state that can be set in the state.

Referring again to FIGS. 1 and 2, the contact guide part 6 is a contact guide surface D1 formed on the side of the tightening connection part 2 corresponding to the flow crimp B1 of the tightening crimping part 4. And an elastic member (D2) formed to elastically push the flow-type crimp (B1) along the contact guide surface (D1).

The contact guide surface (D1) is formed so that the contact can be made in a state in which a part of the flow-type crimp (B1) is deviated from the contact surface (A1) of the connector (A) disposed on the end side of the tightening connecting portion (2).

As shown in FIG. 4, the contact guide surface D1 is inclined inwardly into the contact surface A1 at one side of the contact surface A1 of the tightening connector A corresponding to the flow-type crimping hole B1, and as shown in FIG. It may be formed in an extended state toward the end side of 2).

That is, the contact guide surface (D1) is inclined outward when the contact surface (A1) of the tightening connecting portion (2) is arranged in a state corresponding to the circumference of the pipe (P) joint P1 as shown in FIG. It is formed to have an out of contact guide area.

In addition, as shown in FIG. 4, the floating type pressing hole B1 corresponds to the contact guide surface D1 so that the opposite surface side of the pressing surface B3 is formed so that the contact guide action may be performed by the contact guide surface D1. It is formed to be inclined in the state.

As shown in FIG. 4, the elastic member D2 may be installed between the flow crimp B1 and the fixed crimp B2.

The elastic member (D2), for example, may use a compression coil spring, one end is supported on the side of the flow type tightening crimp (B1), the other end is arranged in a state supported on the fixed crimp (B2) side The flow crimp B1 is moved along the contact guide surface D1 so as to be maintained in a state where the gap is elastically opened from the fixed crimp B2.

The contact guide portion 6 is, for example, when setting the tightening connecting portion (2) so as to be able to operate the compression fastening of the pipe (P) joint (P1) as shown in FIG. (B1) may be elastically moved along the contact guide surface (D1) to provide a contact guide environment that can be located in a state in which a part of the outer side of the both ends of the tightening connecting portion (2).

Therefore, both ends of the tightening connection part 2 may be set in a state where the spacing is further narrowed by the movement of the flow-type crimp B1.

Then, the flow crimp (B1) is moved to the opposite side along the contact guide surface (D1) when tightening the two ends of the connector (2) as shown in Figure 3 together with the fixed crimp (B2) The crimping operation is performed in a state of forming a circle corresponding to the circumference of the pipe P joint.

According to the structure and the action of the contact guide part 6, in particular, since the crimping fastening operation can be set in the state of narrowing the gap between both ends of the fastening connection part 2 as much as possible, for example, Fastening tool (M) having a size used for the compression fastening of small or medium pipes (P) can also ensure the ease and compatibility of the tool operation piece that can smoothly proceed the compression fastening of the large pipe (P).

The crimp fasteners for pipes according to an embodiment of the present invention may further include a holder part 8, as shown in FIGS. 5 to 8.

The holder part 8 has a structure that can hold both ends of the tightening connection part 2 in the setting state when the tightening connection part 2 is set in a state of surrounding the pipe P fitting part P1. Is formed.

5 to 8, the holder part 8 is disposed at one end of the tightening connection part 2 and includes a guide holder E having a guide hole E1, and a guide of the guide holder E. FIG. It may be provided with a locking hole (F) disposed at the other end of the tightening connection portion 2 in a state that can be fitted to the hole (E1) side.

For example, one end of the guide holder E may be fastened and fixed to the end side of the tightening connection part 2 by a pin or a bolt, and the other end may be set to extend toward the opposite side.

As illustrated in FIG. 5, the guide hole E1 may be formed in a slit hole type having an opening by extending inward from the non-fixed side end of the guide holder E toward the fixed side end.

In addition, a plurality of locking grooves E2 are formed to be spaced apart in the guide hole E1 in the extending direction of the guide hole E1 in a state in which the fastener F may be detachably hooked.

In this way, if the locking grooves (E2) to form a spaced apart, according to the diameter of the pipe (P) joint portion (P1) can be held in a state in which the distance between both ends of the connector (2) appropriately adjusted. .

The locking hole (F) is disposed at the other end of the connector (2) in a state corresponding to the guide hole (E1) of the guide holder (E), the locking structure capable of locking and unlocking the guide hole (E1) side It is formed to have.

The locking hole (F) has a locking projection (F1), as shown in Figure 6, on the end side of the tightening connecting portion (2) is installed to be movable in the same direction as shown in the drawing so that the locking projection (F1) The guide hole E1 may be formed in the locking groove E2 side so as to be fitted in a locked state or to be detached from the guide hole E1.

That is, when the locking hole (F) is operated in the same direction as in Fig. 7, the locking hole (F) of the guide hole (E1) in the state of being fitted to the guide hole (E1) side of the guide holder (E) Since it can be moved along the extension direction, the holder portion 8 is in a state of being released.

Then, when the locking hole (F) is operated in the same direction as in Fig. 8, the locking projection (F1) of the locking hole (F) is caught in any one of the locking groove (E2) side of the guide hole (E1). Since the holder part 8 is fitted in a locked state, the holder part 8 is locked, and thus, both ends of the tightening connection part 2 can be held in a connected state.

According to such a structure and action of the holder part 8, when setting the tightening connection part 2 so that it may be wrapped around the pipe P connection part P1 for a crimping operation, this tightening connection part 2 Both ends of the can be held in a stable state, thereby preventing the setting state from being changed or released abnormally.

Therefore, the crimping fastener for piping according to the embodiment of the present invention described above, using the tightening tool (M) in the state in which the connector (2) is set to surround the pipe (P) joint (P1) circumference By operating in the direction of narrowing the gap between both ends of the tightening connection portion 2 can be crimped to tighten the pipe (P) joint (P1) by the pressing force of the tightening crimping portion (4).

In particular, the present invention is provided with a contact guide portion 6 to enable the setting in the state that the gap between both ends is as narrow as possible when setting the tightening connecting portion 2 to the pipe (P) joint (P) side It is possible to provide a fastening structure that can further increase the ease of operation and compatibility of the tightening tool (M).

Claims

Tightening formed to connect the connector in the form that can be wrapped around the joint of the pipe, and is formed to generate a tightening force for pressing the circumference of the pipe joint while operating in a state that the gap between both ends by a tightening tool Connection;

A tightening crimping unit having a fluidized crimping port and a fixed crimping port which are pressed in a contact state by the tightening force of the tightening connector and thus can be crimped around the pipe fitting portion;

A contact guide part configured to guide a contact state between the tightening connection part and the tightening compression part so as to be operated by the tightening tool in a setting state where both ends of the tightening connection part are narrowed;

Crimping fasteners for piping including.
The method according to claim 1,

The tightening connection portion,

Comprising a locking portion at both ends, the locking portion is a crimping fastener for piping consisting of a groove or a projection in which the tightening tool can be caught to enable the tightening operation.
The method according to claim 1,

The tightening connection portion,

Compression fasteners for piping that is formed in a state that can be folded between each other between the connectors.
The method according to claim 1,

The flow crimp and fixed crimp,

Compression fastening for the pipe is disposed on the tightening connection side in the state in which the crimping operation is possible in the direction of reducing the diameter of the pipe joint portion when the gap between both ends of the tightening connection portion is narrowed with each other.
The method according to claim 4,

The flow crimp is disposed in a state corresponding to both ends of the tightening connection portion,

The fixed crimping port is a crimping fastener for piping is arranged in an arrangement in the direction of connecting between the flow crimp.
The method according to claim 5,

The flow crimp,

A crimp fastener for piping is set in a state in which the slide operation is possible along the circumference of the pipe joint at both ends of the tightening connection portion.
The method according to claim 5,

The fixed crimp is,

Fixing fasteners for piping is fixed to the connector side between the both ends of the tightening connecting portion is set in a state that does not move along the circumference of the pipe joint.
The method according to claim 1,

The contact guide portion,

And a contact guide surface formed on the connector side of the tightening connector corresponding to the flow crimp, and an elastic member formed to elastically push the flow crimp along the contact guide surface.
The method according to claim 8,

The contact guide surface,

The crimping fastener for piping is formed to be inclined toward the other side from one side of the contact surface of the connector in contact with the flow-type crimping.
The method according to claim 8,

The elastic member,

The crimp fastener for the pipe is set so that the elastic force can be generated in a state that the flow crimp can be moved along the contact guide surface to be positioned outside the end of the tightening connection.
The method according to claim 1,

The crimping fastener for piping further includes a holder portion corresponding to the tightening connection portion,

The holder portion,

A guide holder disposed at one end of the tightening connection part and having a guide hole formed therein, and a locking hole disposed at the other end of the tightening connection part in such a state that the guide holder is separably fitted to the guide hole side of the guide holder. Crimp fasteners.