KR100922520B1 - Pipe coupling device - Google Patents

Abstract

PURPOSE: A pipe connection device is provided to facilitate the connection of pipes without spatial restriction and maintain fastening force by fixing the inner and outer circumferences around a pipe connection part at the same time. CONSTITUTION: A pipe connection device comprises a connection device body(100), and a connection unit(200). In the connection device body, a flowing hole communicated with a connected pipe(10) is formed. The communication unit is coupled on one side or both sides of the connection device body. The communication unit is fixed and connected to the connection side of the pipe. The communication unit comprises a connector cap(210), a drive member(220), a supporting member(240), and a pressurized bolt(230). The hanging projection(212) is formed at the end of a receiving hole(211) inserted into the connection device body of the connector cap. The drive member is inserted into the outer circumference of the connection device body and moves in the orthogonal direction to the axial direction. In the drive member, a rail part(222) is formed on the outer circumference to be inclined. The supporting member fixes the drive member to the connection device body to be moved. The pressurized bolt is inserted through the outer circumference of the connection device body and is screwed in the drive member. The pressurized bolt moves the drive member forward and backward in the orthogonal direction to the axial direction.

Description

PIPE COUPLING {PIPE COUPLING DEVICE}

The present invention relates to a pipe connector, and more particularly, to connecting a pipe, and relates to a pipe connector that can maintain a solid connection relationship by simultaneously fixing the outer peripheral surface and the inner peripheral surface of the pipe connecting portion.

In general, various equipment such as building equipment, plant equipment and the like, and home appliances such as washing machines, air conditioners, refrigerators, etc., are configured with pipelines through which various fluids such as water, fuel, and raw materials flow.

The pipeline is installed in a predetermined path according to the structure and use of the pipe having a certain length, and both ends of the pipes connected to each other in this installation process are mainly connected by welding, screwing, or flanged joints. Do this.

The welding coupling method is mainly used for connecting pipes, but requires separate equipment and skilled workers for welding work, and there is a high risk of safety accidents or fires in the welding process, and especially flammable materials remain. In places, the risk is further increased.

In addition, the screw fastening method is to assemble by forming a screw on both ends of the pipe connected to each other by a screw molding machine and fastening a separate connector on the screw formed as described above, so as to form a screw at the end of the pipe Not only does the time increase and the pipe stiffness is weakened at the time of cutting, but also has a problem that can not be easily applied to large diameter pipe.

In addition, the flange joint method is assembled by fastening bolts in a state in which the flanges are assembled at the ends of the pipes connected to each other, so that the flange joints can be widely used when connecting relatively large diameter pipes without directly damaging the pipes. The process of assembling the pipe into the pipe is made by welding, which causes the existing problems of welding.

In addition, various types of pipe connectors have been developed and used to make the connection work of the pipe more safely and conveniently.

For example, the water supply hose connector for the washing machine is located between the water supply hose 80 and the faucet 90 as shown in FIG. 1, so that the coupler cap 60, the coupler body 70, Rubber packing, and a plurality of bolts 61 and the like.

However, the above-described water supply hose connector has a disadvantage in that a very troublesome and long assembly time is required because all of the bolts 61 must be tightened in all directions in order to fix the coupler cap 60 to the faucet. In addition, since only the outer surface of the faucet is fixed by the bolt 61, when the tightening force of all the bolts is not uniform when the bolt 61 is fastened, the bolt 61 may not withstand water pressure and may be separated. In addition, when the bolt 61 is fastened, the end side of the bolt 61 damages the surface of the connection side of the faucet, causing corrosion and contaminating the water, thereby acting as a factor of deteriorating the durability of the faucet.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above contents, and an object thereof is to provide a pipe connector that can connect a pipe more firmly by simultaneously fixing the outer and inner circumferential surfaces of the pipe.

Another object of the present invention is to provide a pipe connector which can connect and disconnect a pipe by a simple operation without space limitation.

In order to achieve the above object, the pipe connector according to the present invention, the pipe connector, the connector body formed in the flow hole communicating with the pipe to be connected therein; It is coupled to one side or both sides of the connector body, comprising a connecting means connected to, and fixed to the connecting side of the pipe, the connecting means, the connector cap is formed on the end of the receiving hole is inserted into the connector body side; A driving member inserted into an outer circumferential surface of the connector body and movable in a direction orthogonal to an axial direction, the driving member having an inclined rail portion on an outer surface thereof; A support member for movably fixing the driving member to the connector body; A pressure bolt inserted through an outer surface of the connector body to be screwed to the driving member and forward and backward in a direction perpendicular to the axial direction through tightening and releasing operations; An elevating portion connected to the rail and elevating, an elevating portion extending and formed on the elevating portion, a first pressing ring projecting outwardly from the pipe insertion groove into which the pipe is inserted, and a second pressing ring projecting inwardly; A pressing member having a pipe fixing portion formed thereon; An outer fixing member inserted into a receiving hole of the connector cap so as to be positioned at the tip end side of the first pressing ring, and pressing and fixing an outer circumferential surface of the pipe by a pressing force applied from the first pressing ring; And an inner fixing member inserted into an outer circumferential surface of the connector body to pressurize the inner circumferential surface of the pipe by a pressing force applied from the second pressing ring to hermetically fix the inner circumferential surface.

The outer fixing member may have a plurality of pressing protrusions protrude at regular intervals so as to be in close contact with the outer peripheral surface of the pipe on the inner peripheral surface of the ring-shaped body having a cutout.

The inner fixing member may include at least one contact ring inserted into the outer peripheral surface of the connector body at a predetermined interval; And an O-ring inserted between at least one of the adhesion rings and expanded and in close contact with the inner circumferential surface of the pipe when the pressing force is applied.

Here, the drive member may be composed of an elliptical structure plate-shaped member is formed through the elliptical long hole in the center so as to be inserted into the connector body side, each of the rail portion formed of a plurality of inclined grooves on both sides.

The connector body may include a support plate protruding in the center of the outer circumferential surface of the member having a rod shape, and a pair of fixing rings protruding spaced at predetermined intervals on one side and the other side of the support plate.

The support member is rotatably coupled to the connector body and includes a first support member and a second support member having a hemispherical structure to form a circle in a coupled state, and the first support member and the second support member. The member may include a guide ring inserted between the fixing ring and the support plate, and a support piece protruding in an arc shape to surround an outer circumferential surface of the driving member and the pressing member.

The first support member and the second support member have guide ribs protruding inside the support piece to guide the movement of the drive member, and guide grooves recessed on the outer surface of the corresponding drive member so that the guide ribs are inserted. It may be provided.

The connector cap has a first seating surface in which the outer circumferential surface of the pressing member is slidably seated in the body having a cylindrical shape, a second seating surface in which the outer circumferential surface of the support piece is slidably movable, and the second seating. It has a hemispherical recess in the outside of the body corresponding to the surface and provided with a bolt installation groove in which the insertion hole for insertion of the pressure bolt is drilled, and the first and second support members protrude into the bolt installation groove, It may be provided with a seating protrusion, and a guide protrusion to project the lower side of the insertion hole to guide the movement of the pressure bolt.

In the pipe connector of the present invention, the outer circumferential surface of the pipe is fixed by the outer fixing member and the inner circumferential surface of the pipe is fixed by the inner fixing member, so that the pipe can be connected and fixed more firmly and watertightly.

In addition, a simple operation of a single pressure bolt may be performed to connect and release a pipe, and the pressure bolt may be oriented in a wall or a confined space where a tool or a user's hand cannot be inserted. By simply turning it, the tool or the operator's hand can be moved to the position where it can be inserted, making it easy and quick to connect the pipes easily without any space restrictions.

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

Figure 2 is a perspective view showing an assembled state of the pipe connector according to an embodiment of the present invention, Figure 3 is an exploded perspective view showing a pipe connector according to an embodiment of the present invention.

2 and 3, the pipe connector according to an embodiment of the present invention, the connector body 100 is formed with a flow hole 110 in communication with the flow hole 12 of the pipe 10 is connected, Is coupled to one or both sides of the connector body 100, is made of a connecting means 200 is connected, fixed to the connection side of the pipe (10). And, when the connecting means 200 is connected to only one pipe only a single connecting means 200 is configured in the connector body 100, when the connection to both sides is required, such as when connecting both pipes 10 to each other There are two connecting means 200 are coupled to the connector body 100 is configured.

At this time, the connected object to be connected to the connecting means 200 according to the present invention mainly refers to the pipe 10, but is not limited thereto, and the configuration capable of connecting the connecting means 200 according to the present invention, such as a faucet. Could be applied without limitation.

Referring to FIG. 3, the connector body 100 has a rod shape and a support plate 120 protruding in the shape of a disc at the center of the outer circumferential surface of the member in which the flow hole 110 is formed therein, and one side and the other side of the support plate 120. It is provided with a pair of retaining ring 130 to protrude spaced at a predetermined interval.

Figure 4 is a cross-sectional view showing an assembled state of the pipe connector according to an embodiment of the present invention, Figure 5 is a perspective view showing the main portion of the pipe connector cut in accordance with an embodiment of the present invention.

3 to 5, the connection means 200 is the connector cap 210, the drive member 220, the pressure bolt 230, the pressure member 240, the external fixing member 250, the internal fixing member ( 260, and a support member 270.

The connector cap 210 has an accommodating hole 211 for accommodating the driving member 220, the pressing member 240, the external fixing member 250, and the internal fixing member 260 therein, and the accommodation cap 210 is formed therein. The hole 211 side is inserted into the connector body 100 side, and the locking jaw 212 is formed inside the outlet side end of the receiving hole 211 to prevent separation of the external fixing member 250. .

Then, the connector cap 210 is the first seating surface (211a), the driving member 220 side is mounted on the inner circumferential surface of the receiving hole 211 of the body having a cylindrical shape to be slidably movable The bolt mounting groove in which the second seating surface 211b to be seated, and a hemispherical recess in the outside of the body corresponding to the second seating surface 211b, and the insertion hole 214 for insertion of the pressure bolt 230 are drilled ( 213).

6A and 6B are perspective views illustrating main parts of a pipe connector according to an embodiment of the present invention. FIG. 6A is a view illustrating a state of a driving member and a pressing member before fixing a pipe, and FIG. 6B is a view of a pipe. It is a figure which shows the state of the drive member and a press member after fixing.

3, 6A, and 6B, the driving member 220 moves the pressing member 240 in an upward direction (where the upward direction is a pipe side direction that is substantially connected in the illustrated direction of the drawing). In the configuration to move, it is inserted to the outer peripheral surface of the connector body 100 is formed to be movable in the direction orthogonal to the axial direction, the rail portion 222 is formed to be inclined on the outer surface.

In addition, the driving member 220 is a plate-shaped member having a substantially elliptic shape that is curved at the front and rear sides and has a straight structure, and an elliptical long hole 221 penetrates to be inserted into the connector body 100 side at the center of the plate-shaped member. The rail portion 222 is formed on both sides, and a fastening hole 225 for fastening the pressure bolt 230 is formed on the front side. At this time, the rail unit 222 is composed of a plurality of inclined grooves inclined in the diagonal direction.

In addition, the driving member 220 is provided with a guide groove 224 recessed and formed on the outer surface in contact with the rail portion 222 of the support member 270 to be described later when moving back and forth in accordance with the operation of the pressure bolt 230 The guide rib 273 is made to slide along.

3 and 4, the support member 270 is configured to movably fix the driving member 220 to the connector body 100. The support member 270 includes first and second support members 270a and 270b. And, it is composed of a substantially hemispherical structure to form a circle in a state coupled to each other, rotatably coupled to the connector body (100).

The first support member and the second support member 270a and 270b may include a guide ring 271 inserted between the fixing ring 130 and the support plate 120 of the connector body 100 and the guide ring 271. A support piece 272 is formed so as to protrude orthogonally and surround the outer circumferential surfaces of the driving member 220 and the pressing member 240, and an inner side of the support piece 272 is formed in the guide groove 224. The guide rib 273 is inserted and protruded to guide the movement of the driving member 220.

In addition, the first and second support members 270a and 270b are provided with a seating protrusion 274 projecting to be inserted and seated in the bolt installation groove 213 of the connector cap 210, and a bottom contact of the insertion hole 214. Protruding to have a guide protrusion (275) for guiding the movement of the pressing bolt 230.

The pressure bolt 230 is inserted through the insertion hole 214 formed on the outer surface of the connector cap 210 is screwed into the fastening hole 225 of the drive member 220, the drive member 220 through the tightening and release operation ) Is configured to advance back and forth in the direction orthogonal to the axial direction (pipe 10 direction), and is formed of a head portion 231 having a tool insertion groove and a screw portion 232 fastened to the fastening hole 225. A washer (not shown) is inserted between the head portion 231 and the screw portion 232.

3 and 5, the pressing member 240 is configured to be lifted in the axial direction according to the forward and backward operation of the drive member 220, the pipe 10 by the external fixing member 250 through this lifting action. ) To fix the outer circumferential surface, and to fix the inner circumferential surface of the pipe 10 by the inner fixing member 260.

The pressure member 240 includes an elevating portion 241 connected to the rail 222 and elevating, and a ring-shaped pipe fixing portion 242 extending and formed on the elevating portion 241.

The lifting unit 241 includes a plurality of inclined protrusions 241a protruding on both sides of the ring bottom body and protruding in a corresponding shape to be connected to the inclined groove of the rail unit 222 on the inner surface.

Pipe fixing part 242 is a pipe insertion groove 242a which is inserted into the pipe 10 to be inserted into the upper inner surface of the ring-shaped body, the first pressure ring protruding outward based on the pipe insertion groove 242a ( 242b) and a second pressing ring 242c protruding inward.

3 and 5, the external fixing member 250 is inserted into the receiving hole 211 of the connector cap 210 corresponding to the front end side of the first pressing ring 242b, and the first pressing ring 242b. In the configuration for pressing and fixing the outer circumferential surface of the pipe by the pressing force applied from), any structure that can press the outer circumferential surface of the pipe 10 to apply a fixing force can be applied without limitation.

For example, the outer fixing member 250 may be configured as a ring in which a plurality of pressing protrusions 251 protrude at regular intervals so as to be in close contact with the outer circumferential surface of the pipe 10 on the ring-shaped body inner circumferential surface having a cutout. The external fixing member is formed of resin, plastic, metal, or the like having elasticity.

The inner fixing member 260 is inserted into the outer circumferential surface of the connector body 100 and is configured to press and fix the inner circumferential surface of the pipe 10 by a pressing force applied from the second pressure ring 242c. The inner circumferential surface may be pressed to act as a fixing force, and if the inner circumferential surface of the pipe 10 and the outer circumferential surface of the connector body 100 can be connected in a watertight and hermetic manner, they may be configured in various forms and combined.

For example, the internal fixing member 260 is inserted into at least one or more contact rings 261, which are inserted at regular intervals on the outer circumferential surface of the connector body 100, and at least one or more between the contact rings 261, and a pressing force. It comprises an O-ring (262, O-ring) is inflated on the inner circumferential surface of the pipe 10 in close contact. At this time, the contact ring 261 is formed of a metal ring is inserted and fixed to the outer peripheral surface of the connector body (100).

7a and 7b are views showing a modification of the pipe connector according to an embodiment of the present invention, Figure 7a is an exploded perspective view, Figure 7b is a partially cutaway perspective view showing an assembled state.

Referring to FIG. 7A, after the driving member 220 is moved to the pipe connector according to the modification of the present embodiment according to the manipulation of the pressure bolt 230, the connector cap 210 is maintained firmly. It is further provided with a restraining member 290 inserted through to restrain the driving member 220.

The restraining member 290 is inserted through a hole formed in the connector cap 210 and has a restraining portion 291 formed with a plurality of pressing steps 291a to have a stepped shape at the end thereof, and integrally with the restraining portion 291. Is formed and consists of a seating portion 292 is seated on the connector cap (210) side.

In addition, as shown in FIG. 7B, the driving member 220 includes a plurality of receiving end jaws 227 formed in a corresponding shape such that the pressing step 291a is inserted and fixed when the restraining portion 291 is inserted. . At this time, the receiving step 227 is formed on the rear outer surface of the drive member 220 corresponding to the fastening side of the pressing bolt 230 in the opposite direction.

The restraining member 290 is inserted through the hole formed in the connector cap 210 in the state in which the driving member 220 is pulled forward by the pressure bolt 230, so that the pressing step 291a of the restraining portion 291 is It is installed to be in close contact with and connected to the receiving step 227 of the drive member 220. When the restraining member 290 supports the rear of the driving member 220 as described above, even if an external impact is applied to the driving member 220 or a deformation thereof occurs, the restraining member 290 is firmly positioned without change of position so that the binding member 290 can be connected to the pipe. As the falling phenomenon of the elevated pressure member 240 is prevented, it is possible to maintain a more robust and stable connection of the pipe. In particular, when the injection molding of the pipe connector according to the present embodiment is made of a material such as a plastic having a relatively low rigidity, the driving member 220 may be pushed backward, so that the above-described restraining member 290 is separately provided. It is desirable to ensure the stability of the operation.

Hereinafter, the operation of the pipe connector according to an embodiment of the present invention.

In the process of connecting both pipes 10 using the above-described pipe connector, as shown in FIG. 4, when the ends of both pipes are first pushed between the connector cap 210 and the connector body 100, the outer circumferential surface of the pipe Located inside the outer fixing member 250 and the inner peripheral surface of the pipe is inserted to be positioned on the outer surface of the contact ring 261 and the O-ring 262.

In this state, when the pressing bolt 230 is operated in the tightening direction by using a tool such as a hexagon wrench as shown in FIGS. 3 and 6A, the driving member 220 is pressurized bolt ( 230, the force is pulled in the reverse direction with respect to the fastening direction is moved to the outside by the guide ribs 273 of the first and second support members (270a, 270b).

At this time, the lifting force is applied to the pressing member 240 connected to the rail portion 222 of the driving member 220 via the lifting unit 241. That is, since the inclined protrusion 241a of the elevating part 241 is inserted into the inclined groove of the rail part 222, the inclined protrusion 241a moves up the inclined groove according to the movement (forward movement) of the driving member 220. Therefore, the pipe fixing part 242 formed integrally with the lifting unit 241 is moved upward in the form of lifting.

As such, when the pressing member 240 is moved upward, the first pressing ring 242b formed in the pipe fixing part 242 is interlocked to push the outer fixing member 250, so that the connector cap 210 of the connector cap 210 is moved. The outer fixing member 250 positioned between the locking jaw 212 and the first pressing ring 242b is expanded on the outer circumferential surface of the pipe 10 and the plurality of pressing protrusions 251 formed on the inner circumferential surface of the pipe 10 ) To fix the outer circumferential surface.

When the pressing member 240 is moved upward, the second pressing ring 242c formed on the pipe fixing part 242 is also interlocked to push the inner fixing member 160 to fix the inner circumferential surface of the pipe 10. Will perform the action. That is, the outer end of the second pressing ring 242c acts a pressing force on the contact ring 261 and the O-ring 262 side, and thus the O-ring 262 is an elastic material and is expanded to the inner circumferential surface side of the pipe 10. To fix the inner circumferential surface of the pipe

On the contrary, when the fixed state of the pipe 10 is to be released, when the pressure bolt 230 is operated in the release direction, an external force pushing against the driving member 220 is applied to the first and second supports. The pressing member 240, which is driven backward through the guide ribs 273 of the members 270a and 270b, and is connected to the rail portion 222 of the driving member 220 via the lifting unit 241, performs a downward movement. do.

As a result, the first pressing ring 242b that is pressing the outer fixing member 250 is separated, and the second pressing ring 242c that is pressing the inner fixing member 260 is separated, thereby fixing the pipe 10. The state is released.

As described above, the pipe connector according to the present invention is fixed to the outer peripheral surface of the pipe 10 by the external fixing member 250 in a simple operation of fastening a single pressure bolt 230, and at the same time the internal fixing member 260 Since the inner circumferential surface of the pipe 10 is fixed by), it is possible to simply connect the pipes, and because the inner and outer circumferential surfaces are fixed at the same time when the pipe 10 is connected, it is possible to maintain a more rigid fixed state. In addition, the process of releasing the fixed state of the pipe 10 may also be performed simply and quickly through a simple release operation of the pressure bolt 230.

In addition, since the connection means 200 according to the present invention is coupled to the connector body 100 in a rotatable structure, the connection work of the pipe 10 may be more conveniently performed. For example, even when the pressure bolt 230 is located on a wall or a confined space in which the tool or the user's hand cannot be inserted in the process of connecting the pipe 10, the direction of the connecting means 200 is simply turned to allow the tool or the operator to rotate. The hand can be moved to the insertable position, making it easy to connect the pipes without any space restrictions.

What has been described above is only one embodiment for implementing the pipe connector according to the present invention, the present invention is not limited to the above embodiment, and does not depart from the gist of the present invention as claimed in the following claims. Anyone skilled in the art to which the present invention pertains within the scope will have the technical idea of the present invention to the extent that various modifications can be made.

1 is a view for explaining a conventional pipe connector,

Figure 2 is a perspective view showing the assembled state of the pipe connector according to an embodiment of the present invention,

Figure 3 is an exploded perspective view showing a pipe connector according to an embodiment of the present invention,

4 is a cross-sectional view showing an assembled state of a pipe connector according to an embodiment of the present invention;

5 is a perspective view showing the main portion of the pipe connector cut out according to an embodiment of the present invention,

6a and 6b is a perspective view of the main portion for explaining the operation of the pipe connector according to an embodiment of the present invention,

7A and 7B are views showing a modification of the pipe connector according to the embodiment of the present invention.

<Explanation of symbols for main parts of drawing>

10: pipe 100: connector body

200: connecting means 210: connector cap

220: driving member 230: pressure bolt

240: pressure member 250: external fixing member

260: internal fixing member 270: support member

290: binding member

Claims (10)

In the pipe connector, A connector body having a flow hole communicating with a pipe to be connected therein; Is coupled to one side or both sides of the connector body, including a connecting means connected to, fixed to the connection side of the pipe, The connecting means, A connector cap having a locking jaw formed at an end of the receiving hole inserted into the connector body side; A driving member inserted into an outer circumferential surface of the connector body and movable in a direction orthogonal to an axial direction, the driving member having an inclined rail portion on an outer surface thereof; A support member for movably fixing the driving member to the connector body; A pressure bolt inserted through an outer surface of the connector body to be screwed to the driving member and forward and backward in a direction perpendicular to the axial direction through tightening and releasing operations; An elevating portion connected to the rail and elevating, an elevating portion extending and formed on the elevating portion, a first pressing ring projecting outwardly from the pipe insertion groove into which the pipe is inserted, and a second pressing ring projecting inwardly; A pressing member having a pipe fixing portion formed thereon; An outer fixing member inserted into a receiving hole of the connector cap so as to be positioned at the tip end side of the first pressing ring, and pressing and fixing an outer circumferential surface of the pipe by a pressing force applied from the first pressing ring; And And an inner fixing member inserted into an outer circumferential surface of the connector body to pressurize the inner circumferential surface of the pipe by a pressing force applied from the second pressing ring and to fix the inner circumferential surface. The method of claim 1, The outer fixing member is a pipe connector, characterized in that a plurality of pressing projections projected at regular intervals to be in close contact with the outer peripheral surface of the pipe on the inner peripheral surface of the ring-shaped body having a cutout. The method of claim 1, The internal fixing member, At least one contact ring inserted at an interval on the outer circumferential surface of the connector body; And And an O-ring inserted into at least one of the contact rings, the O-ring being inflated onto the inner circumferential surface of the pipe when the pressing force is applied. The method of claim 1, The drive member is a pipe connector, characterized in that the elliptical long hole is penetrated in the center so as to be inserted into the connector body side, the plate portion of the elliptical structure formed each of the rail portion formed of a plurality of inclined grooves on both sides. The method according to any one of claims 1 to 4, The connector body includes a support plate protruding in the center of the outer peripheral surface of the member having a rod shape, and a pair of fixing rings protruding spaced at predetermined intervals on one side and the other side of the support plate. The method of claim 5, The support member is rotatably coupled to the connector body, and comprises a first support member and a second support member having a hemispherical structure to form a circle in a state coupled to each other, The first and second support members include a guide ring inserted between the fixing ring and the support plate, and a support piece protruding in an arc shape to surround an outer circumferential surface of the driving member and the pressing member. Characterized by a pipe connector. The method of claim 6, The first support member and the second support member is provided with a guide rib protruding inside the support piece to guide the movement of the drive member, And a guide groove recessed on an outer surface of the drive member so that the guide rib is inserted therein. The method of claim 7, wherein The connector cap has a first seating surface in which the outer circumferential surface of the pressing member is slidably seated in the body having a cylindrical shape, a second seating surface in which the outer circumferential surface of the support piece is slidably movable, and the second seating. It has a hemispherical recess in the outside of the body corresponding to the surface and provided with a bolt installation groove perforated the insertion hole for insertion of the pressure bolt, The first and second support members are provided with a seating protrusion projecting to be inserted and seated in the bolt installation groove, and a guide protrusion projecting to contact the lower side of the insertion hole to guide the movement of the pressure bolt. Connector. The method of claim 7, wherein And a restraining member inserted through the connector cap to restrain the driving member so that the moved state of the driving member is firmly maintained. The method of claim 9, The restraint member includes a restraint part inserted through a hole formed in the connector cap and formed with a plurality of pressing steps to have a stepped shape at the end, and a seating part integrally formed with the restraint part and seated on the connector cap side. And a plurality of receiving steps having a corresponding shape is formed on a rear outer surface of the driving member so that the pressing step is inserted and fixed when the restricting part is inserted.

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